49results about "Large fixed members" patented technology

The invention discloses a turnover device for mechanical automatic machining. The turnover device comprises a first support plate and a second support plate, wherein the first support plate corresponds to the second support plate, corresponding through holes are respectively formed in the same high position of the first support plate and the second support plate, bearings are fixedly connected tothe inner walls of the two through holes, two symmetrical fixtures are arranged between the first support plate and the second support plate, one fixture is connected with the first support plate by virtue of an adjusting mechanism, a rotating rod is fixedly connected to the center of one side, which is far from the first support plate, of the other fixture, the rotating rod penetrates through thebearing on the second support plate and is rotatably connected with the second support plate, a mounting plate is fixedly connected to one side, which is far from the first support plate, of the second support plate, a motor is fixedly connected to the top of the mounting plate, and the tail end of an output shaft of the motor is fixedly connected with one end, which is far from the fixture, of the rotating rod by virtue of a coupling. According to the turnover device, the purpose of no deformation when a plate is milled is realized by utilizing the lifting support plates.

A device for manufacturing a connecting rod comprises a fixed stage secured onto a base, a movable stage so installed as to be move close to and apart from the fixed stage, and a set of backup cylinders displacing the overall movable stage along the axial direction of the connecting rod. The set of backup cylinders are substantially simultaneously biased to displace a cap part together with the movable stage until the fractured surface of the cap part of the connecting rod abuts on the fractured surface of the rod part of the connecting rod held on the fixed stage. Consequently, the removal and release of chips produced on the mating fractured surfaces can be promoted.

The invention discloses a fourth-axis and fifth-axis clamp. A steel wheel of a first harmonic reduction gear is fixedly installed in a first body. A first servo motor drives a waveform generator of the first harmonic reduction gear. A second body is fixedly connected with a flexible wheel of the first harmonic reduction gear. A steel wheel of a second harmonic reduction gear is fixed into the second body. A second servo motor drives a waveform generator of the second harmonic reduction gear. The axis of the first harmonic reduction gear and the axis of the second harmonic reduction gear are perpendicular to each other. A tool fixture provided with a fixing device used for locating a product is fixed to a flexible wheel of the second harmonic reduction gear. A first motor and a second motor are provided with a first encoder and a second encoder respectively. The first encoder and the second encoder are electrically connected with a controller. The controller controls the first motor and the second motor to work. By means of the fourth-axis and fifth-axis clamp, five-axis machining is achieved, the machining precision is high, various complicated structures can be machined, and the fourth-axis and fifth-axis clamp is suitable for machining high-precision parts and high in machining efficiency.

The invention discloses a novel linear rolling and sliding composite guide rail pair, comprising a guide rail and a sliding block fit with each other, wherein the guide rail is trapeziform, two side faces of the trapeziform guide rail are guiding faces, the upper surface of the trapeziform guide rail is a bearing surface, the bottom of the sliding block is provided with a trapeziform groove fit with the trapeziform guide rail, the two side faces of the trapeziform groove are respectively provided with at least one row of cylindrical rollers along the length direction, a guide rail soft strip is arranged between the upper surface of the trapeziform groove of the sliding block and the bearing surface of the trapeziform guide rail along the length direction of the guide rail. The novel linear rolling and sliding composite guide rail pair integrates the advantages of a rolling guide rail and a sliding guide rail, ensures the guiding and positioning accuracies of the motion guide rail and the bearing capacity of the guide rail and simultaneously reduces motion resistance reasonably in the case of loading heavily and cutting heavily, promotes sensitivity, rigidity and vibration resistance of the motion guide rail, improves machining efficiency and prolongs the service life of the guide rail.

The invention provides a tilting-type operating platform used for processing a three-dimensional hole of a die, belonging to the technical field of machinery and solving the problem of high cost for processing the traditional three-dimensional hole. The tilting-type operating platform comprises a working flat plate and a base, wherein the upper surface of the working flat plate is provided with aplurality of T-shaped grooves, one end of the working flat plate is rotatably connected with the base through a rotating shaft, a fixing device enabling the working flat plate to be positioned after rotating around the rotating shaft is arranged between the lower surface of the other end of the working flat plate and the base, the upper surface of the working flat plate is symmetrically provided with even number of rows of positioning holes for positioning workpieces, each row of positioning holes are distributed along an arc at equal angles, and a plurality of rows of positioning holes arranged at each side of a symmetrical line are arranged in concentric non-uniform arcs. The operating platform realizes position adjustment of the workpieces through rotation of the working flat plate andthe rotation of the workpieces on the working flat plate, therefore, the three-dimensional hole can be processed under the condition of no change of the steering of a tool bit.

The invention discloses a three-dimensional soft model cutting forming machine and a three-dimensional soft model cutting forming method using the forming machine to achieve high efficiency machining, wherein the three-dimensional soft model cutting forming machine is compact in structure, and smooth and fast to machine. The forming machine comprises a base, a stand column, a fixed cantilever, a movable cantilever, an angle cutter head base and a cutter head body. The stand column is installed on the base through a first guide drive mechanism and can reciprocate along the horizontal X axis, the fixed cantilever is installed on the stand column through a second guide drive mechanism and can reciprocate along the horizontal Y axis, the angle cutter head base is installed at the front end of the movable cantilever through a fourth guide drive mechanism and can swing in the two directions around a first reference axis parallel to the horizontal Y axis under the action of the fourth guide drive mechanism, and the cutter head body is installed on the angle cutter head base through a fifth guide drive mechanism and can swing in the two directions around a second reference axis perpendicular to the first reference axis under the action of the fifth guide drive mechanism.

The invention relates to a large-stroke five-degree-of-freedom hybrid machine tool with reconfigurable characteristics. The large-stroke five-degree-of-freedom hybrid machine tool comprises a liftingadjusting device, five parallel mechanism driving branched chains with the same structure, a passive constraint branched chain, a movable platform and a spindle head, wherein one ends of the five parallel mechanism driving branched chains with the same structure are connected to the lifting adjusting device, the other ends of the five parallel mechanism driving branched chains are connected to themovable platform, one end of the passive constraint branched chain is connected to the center of the movable platform, the other end of the passive constraint branched chain is connected to the lifting adjusting device, and the spindle head of the machine tool is installed at the tail end of the movable platform. The parallel mechanism part of the hybrid machine tool has three-dimensional movement and two-dimensional rotation, and the processing requirements of complex curved surfaces and surface local bulges of large-size box bodies can be met; the Z-direction motion is superposed by two stages of the lifting adjusting device and the parallel mechanism, a larger Z-direction stroke is achieved, and the processing requirement of a large working space of a box body is met; and meanwhile, the lifting adjusting device can continuously change the structural inclination angle of the parallel mechanism, so that the mechanism has reconfigurable characteristics, and different processing requirements can be met.

The invention discloses a digital controlled drilling machine capable of automatically adjusting the depth of a hole. The digital controlled drilling machine capable of automatically adjusting the depth of the hole comprises a drilling machine body, an axial driving mechanism, a workpiece clamping and fixing mechanism, a rotation driving mechanism, a control system, a lifting support frame, a horizontal bracket, and a lifting and driving mechanism. The workpiece clamping and fixing mechanism is installed right above the lifting support frame through the horizontal bracket. The control system comprises a second electrical parameter detection unit, a lifting height detection unit, a first parameter input unit, a second parameter input unit, a main controller, a first electromagnetic control switch, a lifting speed detection unit, a lifting direction detection unit, a data storage unit, and a display unit, wherein the main controller is used for controlling the lifting and driving mechanism according to information input by the first parameter input unit and then adjusting the depth of the hole to be drilled at present, and the first electromagnetic control switch is connected with a power supply return circuit of the axial driving mechanism in series. The digital controlled drilling machine capable of automatically adjusting the depth of the hole has the advantages of being reasonable in design, convenient to install and arrange, simple in use and operation, high in intellectualization degree, good in using effect, and capable of automatically adjusting and monitoring the depth of the hole to be drilled easily and conveniently.

A driving mechanism for operating a shaping die to join stacked plates by a deep-drawing and swaging operation is implemented as an electric drive, such as a linear motor or a rotary motor, which is operatively connected to the shaping die.

The invention discloses a clamping device of a boring-milling machine, and belongs to the technical field of mechanical manufacturing. The device comprises an oil cylinder, a positioning base, a first clamping base and a second clamping base; the first clamping base and the second clamping base are arranged on the two opposite sides of the positioning base. A piston rod of the oil cylinder sequentially penetrates through the second clamping base, the positioning base and the first clamping base. The first clamping base is connected with the extending-out end of the piston rod; an oil opening of the oil cylinder is communicated with an oil tank through a hydraulic electromagnetic valve; a first oil opening of the hydraulic electromagnetic valve is communicated with the oil opening of the oil cylinder; a second oil opening of the hydraulic electromagnetic valve is communicated with a hydraulic oil opening for controlling movement of the boring-milling machine; the valve control end of the hydraulic electromagnetic valve is in series connection with the contact end of a pressure relay and a power source to form a loop; an oil opening of the pressure relay is communicated with a second oil opening of the electromagnetic valve. The clamping device is simple and reliable in structure, and the machine tool machining precision and the product quality are improved.

The invention relates to equipment special for valve rod slot-position chamfering processing. The equipment comprises a baseplate, an electric head, an adjustable rotation disc, a fixing disc, an adjustable connection plate, a linear guide rail and the like. A left limit block and a right limit block are fixed to the two sides of the baseplate respectively, the linear guide rail is fixed to the baseplate, a left adjustment screw and the left limit block from a spiral transmission pair, and a right adjustment screw and the right limit block from a spiral transmission pair; a clamp body baseplate is installed on the linear guide rail, a clamp body is installed on the clamp body baseplate, and columns are fixed to one side of the baseplate; a fixing horizontal plate is installed at the tops of the columns, and the adjustable connection plate is arranged on the columns; one end of a lead screw penetrates through a thread arranged on the adjustable connection plate to form a spiral transmission pair, and the other end of the lead screw penetrates through a through hole formed in the fixing horizontal plate and extends out of the fixing horizontal plate; the fixing disc is fixedly installed on the adjustable connection plate, the adjustable rotation disc is installed on the fixing disc, the electric head is installed on the adjustable rotation disc, and an output shaft of the electric head is connected with a die head. According to the equipment, the problem is solved that valve rod slot-position chamfering processing is difficult.

A machine tool with active damping is provided, having a ram with longitudinal walls wherein vibrations are produced during machining according to at least a main bending direction (D1, D2) of the ram, a head that is arranged at one free end of the ram, actuation means for actuating the head which are arranged on one of the longitudinal walls of the ram, and damping means configured to generate at least a force (F1, F2) in the main bending direction (D1, D2) of the ram, wherein the damping means are arranged in a partial cross section of the longitudinal wall of the ram wherein the actuation means are arranged, the partial cross section being located between the actuation means and the free end of the ram on which the head is arranged.

The invention discloses a steel component positioning and drilling device, and relates to the technical field of steel component machining. The device comprises a base; the top face of the base is fixedly connected with a supporting plate and a limiting frame; a material bearing frame is rotationally connected between the supporting plate and the inner surface of the limiting frame; one surface ofthe limiting frame is fixedly connected with a rotating motor; one end of an output shaft of the rotating motor is fixedly connected with the material bearing frame; a first lead screw transmission assembly is fixedly installed inside the material bearing frame; the peripheral side face of the first lead screw transmission assembly is connected with a movable base in sliding fit with the materialbearing frame; a second lead screw transmission assembly is fixedly installed inside the movable base; a forward thread part and a reverse thread part are arranged on the circumferential side face ofthe second lead screw transmission assembly. According to the steel component positioning and drilling device, through the design of structures such as the material bearing frame, an angle adjustingbase and the rotating motor, a fixed structure of a traditional punching device is changed into an angle-adjustable structure.

The invention relates to a twelve-speed-gear lathe spindle box assembly. The twelve-speed-gear lathe spindle box assembly comprises a box body, a driving unit and a transmission unit; the transmission unit comprises a first shaft, a second shaft, a third shaft, a spindle and a fourth shaft; the first shaft is provided with a first-stage duplex sliding gear; the second shaft is provided with a second-stage transmission gear, a second-stage universal transmission gear A unit and a second-stage universal transmission gear B unit, and the second-stage universal transmission gear A unit and the second-stage universal transmission gear B unit each comprise a second-stage universal transmission gear A and a second-stage universal transmission gear B; the third shaft is provided with a third-stage duplex sliding gear and a second-stage triple sliding gear; the spindle is provided with a third-stage driven gear A, a third-stage driven gear B and a feeding power driving gear; and the fourth shaft is provided with a feeding power transmission gear. The twelve-speed-gear lathe spindle box assembly is exquisite in design, adopts a single motor as a power source, can achieve twelve speed change stages, is small in size, low in manufacturing cost and high in practicability, and has certain market popularization value.

The invention discloses a machining center electric spindle and a machining center and belongs to the technical field of machining equipment. The machining center electric spindle and the machining center are designed for solving the problem of low rigidity of an existing spindle. The machining center electric spindle comprises a spindle core. The outer side of the spindle core is sleeved with a front bearing set. A turning and milling switching mechanism is arranged in the position, located at the rear end of the front bearing set, of the outer side of the spindle core and is configured in the mode that when a milling process or a drilling process needs to be conducted, the spindle core can rotate in the front bearing set. When a turning process needs to be conducted, the spindle core isfixed relative to the front bearing set. Compared with an existing machining center spindle core, the machining center electric spindle and the machining center are higher in overall rigidity, the service life of the spindle core is prolonged under the circumstance that turning and milling can be switched smoothly, hardness of allowably turned workpieces is improved, and the application range is wider.

The invention discloses a pipeline cutting machine for water conservancy project. The pipeline cutting machine comprises a machine enclosure, wherein a transportation cavity and a discharging cavity are arranged in the machine enclosure; the left end of the transportation cavity is in communication with the outside world; the lower end of the discharging cavity is in communication with the outsideworld, and the upper end of the discharging cavity is in communication with the transportation cavity; a storage cavity is formed in the machine enclosure; a fixed arc plate is connected to the interior of the storage cavity in a sliding manner, and can move downwards to fix a pipeline; a cutting cavity is formed in the machine enclosure; a fixed block is arranged in the cutting cavity; a fixed block cavity is formed in the fixed block; a cutting block is connected to the interior of the fixed block cavity in a sliding manner; a cutting block cavity and a cutting blade are arranged in the cutting block; the cutting blade rotates to cut the pipeline; a baffle plate is arranged in the transportation cavity; the pipeline is in contact with the baffle plate so as to be controllably cut; a moving transmission mechanism is arranged in the machine enclosure and comprises a driving cavity formed in the machine enclosure; and the lower end wall of the driving cavity is connected to a driving motor which can provide power.

The invention relates to a positioning turning device which drives in a hydraulic and mechanical combined mode and comprises a turning mechanism, a hydraulic locking releasing mechanism, a hydraulic positioning plug mechanism and a power driving mechanism, wherein a turning plate is driven by a hydraulic motor through a set of gears and is continuously turned along a same peripheral direction; when a signal is encountered, the turning is stopped, a plug cylinder is plugged, the turning plate is positioned, and then the turning plate is backward pulled and locked by a locking cylinder; and a power part transmits the power to a main bearing box which is used together with the power part through a driving shaft. The positioning turning device is used together with the main bearing box and is suitable for a special machine and an automatic moving line for repeatedly processing a same position on a workpiece in different processes. The positioning turning device has the advantages of compact structure, stability in moving, high precision, low cost and conveniences in operating and maintaining.

The invention discloses zirconium-oxide processing equipment and a four-axis processing structure, wherein the zirconium-oxide processing equipment comprises a base, a working platform, a tool magazine, an A-axis rotating mechanism, a first supporting plate, an X-axis moving mechanism, a Y-axis moving mechanism, a Z-axis moving mechanism, a main shaft, a protective ring and a protective-ring fixing shell, wherein the working platform is opposite to the main shaft and is fixedly connected with the tool magazine; the tool magazine is provided with a plurality of containing holes along the peripheral direction of the working platform, and is connected to the A-axis rotating mechanism; the middle part of the first supporting plate is sheathed at the outer side of the A-axis rotating mechanism,and the bottom part of the first supporting plate is fixedly connected to the base. The zirconium-oxide processing equipment disclosed by the invention has the advantages that on one hand, the tool magazine and the working platform are connected together, so that the structure is simplified and the occupied space of the equipment is reduced; on the other hand, the tool magazine does not need to be individually controlled, so that the control difficulty is reduced; in addition, the main shaft and the working platform are respectively and individually controlled, so that the complexity of the processing process is simplified.

The invention provides a moving mechanism of a numerical control machine tool. According to the technical scheme, the moving mechanism of the numerical control machine tool is characterized by comprising a workbench and a base; two stand columns capable of sliding along the base are arranged on the base; the stand columns are arranged on the base in a sliding mode through sliding mechanisms; the upper ends of the two stand columns are fixedly connected through a cross beam; sliding blocks capable of vertically sliding on the opposite inner side walls of the stand columns are arranged on the inner side walls of the two stand columns; a sliding base is fixed to one ends of the sliding blocks; the sliding base can axially move relative to the sliding blocks in the direction perpendicular to the axis of the base; a tool head is installed at the end, away from the sliding blocks, of the sliding base; a connecting beam is arranged on the side edge of the base; the connecting beam is connected with the bottoms of the two stand columns; andthe base is further provided with a lubricating mechanism used for adding lubricating liquid to the sliding mechanism. The moving mechanism has the beneficial effects that oil is automatically supplied for lubrication, the lubricating liquid is uniformly added, and the lubricating liquid can be switched for lubrication work.

The invention discloses the technical field of machining equipment, and particularly relates to a double-spindle box structure with a four-spindle machining center. The double-spindle box structure comprises a base, the base is fixedly connected with a standing column, a cross beam crossing the base is arranged on the standing column, a working table reciprocating in the X-axis direction is slidably installed on the base, the working table is located on the lower part of the cross beam, a sliding seat reciprocating in the Y-axis direction is slidably installed on the cross beam, one or more pairs of spindle boxes reciprocating in the Z-axis direction are oppositely arranged on the two sides of the sliding seat, the cross section of the spindle boxes is in a waist circle shape, the spindleboxes are tightly and slidably connected to the sliding seat and thus the distance between the spindle boxes and the sliding seat approaches zero, the spindle boxes comprise a plurality of spindles, and detachable cutters are installed at the bottom ends of the spindles correspondingly. Design of the waist circular spindle boxes is adopted, the size of the spindles from the side face of the sliding seat is decreased, the distance between the end faces of the spindles and the side face of the sliding seat is decreased, it is ensured that stress of workpieces during machining is more stable, theprecision is higher, and the roughness is better.

The invention discloses a permanent-magnet direct-driving motor for a sawing machine. The permanent-magnet direct-driving motor comprises a front end cover, a shell, a stator assembly, a rotor assembly, a shaft, a rear end cover, a rear cover, a fan and a fan support, wherein the stator assembly is tightly arranged on an inner wall of the shell in a matching way, the rotor assembly is connected with an outer wall of the shaft via a key, the front end cover is fixedly connected with a front end of the shell, the rear end cover is fixedly connected with a rear end surface of the shell, the rearcover is connected with a rear end surface of the rear end cover, four cooling devices are uniformly arranged at circumference of an outer wall of the shell, each cooling device comprises cooling fingroups, the cooling fin groups are symmetrically arranged along a circumference bisectrix h, and included angles Alpha between the cooling fin groups and a horizontal direction are 45 degrees, the heights of outer ends of cooling fins of the same cooling fin groups are equal, an included angle Beta between each cooling fin and the horizontal direction is 45 degrees, the fan support is fixedly arranged on the rear end cover, and the fan is connected with the fan support. Air-cooling heat dissipation is employed, and the permanent-magnet direct-driving motor is low in cost, good in cooling effect, novel in structure and reliable in matching.

The invention relates to the field of hardware dies, in particular to an automatic ejector pin spiral groove grinding device. The automatic ejector pin spiral groove grinding device mainly comprises acutting wheel and an installing base arranged in front of the cutting wheel. The installing base and the cutting wheel deflect by a certain angle to be arranged. The installing base comprises a leftclamping part, a right clamping part and an upper clamping part jointly clamping an ejector pin, and the surface of the tail of the ejector pin is right opposite to the bottom of the cutting wheel forcutting. The automatic ejector pin spiral groove grinding device is low in cost, an ejector pin spiral groove can be machined on an ordinary grinding machine, positioning is accurate and stable, clamping is rapid, person hand slight holding is not needed in the machining process, automation is completely achieved, the production efficiency is greatly improved, and the time and labor cost is saved.