Manufacturing method of civil defense door closing structure
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A manufacturing method and technology for air defense doors, which are used in door/window fittings, building structures, switches with brakes, etc., can solve the problems of cumbersome operation, reduce work efficiency, spend a lot of time, etc., and increase assembly efficiency. , reduce the time spent, increase the effect of aesthetics and anti-rust performance
Pending Publication Date: 2020-11-03
JINAN JINFENGYUAN PROTECTIVE EQUIP CO LTD
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[0003] The purpose of the invention is to provide a method for making the closed structure of civil air defense doors, which has the advantages of firstly assembling the internal components into a whole to make it modular, thereby increasing the assembly efficiency of the door closer, and solving the problem of assembling the door closer at the present stage. At the same time, the components are installed in the shell one by one in order, the operation is cumbersome, and it takes a lot of time to assemble, thereby reducing the work efficiency.
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Embodiment 1
[0030] A method for manufacturing a closed door structure of a civil air defense door, comprising the following steps:
[0031] S1. After the steel is subjected to high-temperature treatment, it is directly upset into a billet of approximate shape and size with a cold heading machine. The temperature of the high-temperature treatment of the steel is 1100°C;
[0032] S2. Use a CNC lathe or a small lathe to carry out deep processing on the shaft cover blank, respectively process the first end cover 1, the baffle plate 2, the rack 3, the shell 6, the second end cover 7 and the gear 10, and use the electroplating process to process the baffle plate , racks, shells and gears are galvanized;
[0033] S3. Put the first end cap 1 and the second end cap 7 of qualified size on the thread rolling machine to process and form the threads, and use the lathe to carve out the clamping groove 8 on the second end cap 7, and use the electroplating process to the first end cap 7. The end cap and...
Embodiment 2
[0041] A method for manufacturing a closed door structure of a civil air defense door, comprising the following steps:
[0042] S1. After high-temperature treatment, the steel is directly upset into a blank of approximate shape and size with a cold heading machine;
[0043] S2. Carry out deep processing to the shaft cover blank with a CNC lathe or a small lathe, respectively process the first end cover 1, the baffle plate 2, the rack 3, the casing 6, the second end cover 7 and the gear 10, and the temperature of the high temperature treatment of the steel is 1000°C;
[0044] S3. Put the first end cap 1 and the second end cap 7 of qualified size on the thread rolling machine to process and form the threads, and use the lathe to carve out the clamping groove 8 on the second end cap 7, and use the electroplating process to the first end cap 7. Galvanized end caps, baffles, racks, housings, second end caps and gears;
[0045] S4, the baffle plate 2 is welded and fixed on the two...
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Abstract
The invention discloses a civil defense door closing structure. the civil defense door closing structure is manufactured through the steps of performing high-temperature treatment on steel, and then directly upsetting the treated steel to obtain blanks with the approximate shape and size through a cold header; performing deep processing on shaft cover blanks by using a numerical control lathe or asmall lathe, and respectively processing a first end cover, a baffle, a rack, a shell, a second end cover and a gear; placing the first end cover and the second end cover which are qualified in sizeon a thread rolling machine to be processed into threads; welding and fixing baffles to the two ends of the rack, and welding and fixing one end of a spring is to the baffle on one side of the rack; enabling one end deviating from the baffle, of the spring to be clamped and mounted in a clamping groove of the second end cover; mounting the first end cover at one end of the shell, and mounting thesecond end cover connected with the spring and the rack at the other end of the shell; inserting and mounting the gear below the rack in the shell in a rotary sealing manner; and pouring hydraulic oilinto the shell, and mounting a sealing plug. The civil defense door closing structure has the advantages that internal components are preferentially assembled into a whole, so that the civil defensedoor closing structure is modularized, and the assembling efficiency of the door closing structure closer is improved.
Description
technical field [0001] The invention relates to the technical field of closed door structures, in particular to a method for manufacturing a closed door structure for civil air defense doors. Background technique [0002] The door closing structure is a spring-like hydraulic device on the door head. When the door is opened, it can be compressed and released to automatically close the door. It has the function of a spring door, which can ensure that the door is closed to the initial position accurately and in time after being opened. . Modern hydraulic door closers are different from traditional door closers, and achieve buffering effect by throttling the liquid in the door closer. The core of the design idea of the hydraulic door closer is to realize the control of the door closing process, so that various functional indicators of the door closing process can be adjusted according to people's needs. However, when assembling the door closers at the present stage, the comp...
Claims
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Application Information
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