Cold-heading forming method for spring washer nut
A forming method and nut technology, which are applied in manufacturing tools, forging/pressing/hammer devices, forging/pressing/hammering machines, etc., can solve the problem that the hexagonal nuts and rubber shock-absorbing gaskets are easy to loosen and reduce the use of the overall air-conditioning compressor. Life, rubber shock-absorbing gaskets fall off, etc., to achieve high-speed production, improve production efficiency, and ensure the effect of efficiency
Active Publication Date: 2014-09-24
常熟市科创精密紧固件有限公司
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Problems solved by technology
Under such long-term shaking, the hex nuts and rubber damping gaskets are easy to loosen, causing the rubber damping gaskets to fall off, resulting in frequent maintenance
It also makes the installation process very inconvenient
Therefore, the current fixing methods of hex nuts and rubber damping gaskets for air-conditioning compressors usually easily lead to equipment failure, resulting in frequent maintenance, reducing the service life of the overall air-conditioning compressor, and low installation efficiency
Method used
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Embodiment Construction
[0034] The present invention will be described in further detail below in conjunction with specific examples.
[0035] like figure 1 As shown, the spring washer nut of this embodiment is composed of a nut body 1 and a washer connection part 2, and has a screw hole 3, wherein the nut body 1 is hexagonal, and the washer connection part 2 is annular, and is arranged on the nut body 1 The bottom of the bottom and higher than the bottom plane, the height of the raised part matches the thickness of the pad to be connected, the inner diameter of the gasket connection part 2 is larger than the diameter of the screw hole 3, the outer diameter of the gasket connection part 2 is the same as the thickness of the pad to be connected match the inside diameter of the chip.
[0036] like figure 2 As shown, the cold heading forming method of the spring washer nut of the present embodiment, its specific steps are carried out as follows:
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The invention discloses a cold-heading forming method for a spring washer nut, belonging to the technical field of fastener manufacturing. The method comprises the following steps of material cutting, first-die forming, second-die forming, third-die forming, fourth-die forming, fifth-die forming, punching and tapping. According to the technical scheme of the invention, the spring washer nut can be efficiently produced at high speed and high quality by utilizing high-speed cold-heading equipment, and the production efficiency of the cold-heading forming method can be increased by more than 10 times as comparison with that of a turning way.
Description
technical field [0001] The invention belongs to the technical field of fastener manufacturing, and in particular relates to a cold heading forming method for nuts. Background technique [0002] At present, the compressor fixing method of air conditioners is mainly based on hexagonal nuts and damping gaskets, and the damping gaskets are usually rubber products. However, the fixing method of this hexagonal nut plus shock-absorbing gasket has been found to have many problems affecting the assembly and the stability of the compressor during long-term use. The main reason is that the fan of the outdoor unit is running at high speed when the air conditioner is working, so the outdoor unit will also vibrate while running at high speed. Under such long-term shaking, the hex nuts and rubber damping gaskets are easy to loosen, causing the rubber damping gaskets to fall off, resulting in frequent maintenance. It also makes the installation process very inconvenient. Therefore, the c...
Claims
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IPC IPC(8): B21J5/02B21J13/02
Inventor 王建冯念强
Owner 常熟市科创精密紧固件有限公司