The riveting method of the inner plate of the lever block wrench and the brake cover

Abstract

The invention discloses a riveting method for a lever block wrench inner plate and a brake cover, and belongs to the technical field of lever blocks. It includes the following steps: install the special riveting device on the press, fix the lower template of the device on the press platen; set the inner plate of the wrench to the positioning ring and rest it on the supporting part; The outer periphery rests on the inner plate of the wrench, and there is a radial gap of 0.5-0.8mm between the hole of the brake cover along the flange and the flange of the inner plate of the wrench; the upper template of the special riveting device is fixedly connected to the slider of the press The bottom of the body; start the press to drive the device to press down, so that the upper end of the flange is bent and deformed to form a flange, and pressed to the step of the step hole of the brake cover. Axial play clearance. After adopting the above steps in the method of the present invention, it is ensured that the inner plate of the wrench is riveted to the brake cover and rotates flexibly and smoothly.

Description

【Technical field】 [0001] The invention relates to a riveting method for a lever block wrench inner plate and a brake cover, and belongs to the technical field of lever blocks. 【Background technique】 [0002] In the practice of the prior art, it is necessary to connect the inner plate of the wrench to the formed brake cover by pressure riveting. The hydraulic method is usually used in the industry. Since the pressure riveting force is easily affected by the flow of hydraulic oil and the change of oil temperature, the inner plate of the wrench will be damaged. There are many technical deficiencies in the forming process of the flanging of the flange, mainly manifested in the insurmountable diameter reduction problem of the reversing ratchet seat hole of the inner plate of the wrench, and the problem that the pressure riveting is too loose and too tight to be controllable. The diameter reduction of the reversing ratchet seat hole will inevitably affect the smooth rotation of th...

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Problems solved by technology

[0002] In the practice of the prior art, it is necessary to connect the inner plate of the wrench to the formed brake cover by pressure riveting. The hydraulic method is usually used in the industry. Since the pressure riveting force is easily affected by the flow of hydraulic oil and the change of oil temperature, the inner plate of the wrench will be damaged. There are many technical deficiencies in the forming process of bending the flanging into flanging, mainly manifested in the insurmountable diameter reduction problem of the reversing ratchet seat hole on the inner plate of the wrench, and the uncontrollable problem of too loose and too tight riveting

The diameter reduction of the reversing ratchet seat hole will inevitably affect the smooth rotation of the reversing ratchet contained in it. If the riveting is too loose, the inner plate of the wrench will shake too much, which will affect the working efficiency of the inner plate of the wrench. If the riveting is too tight, the Damage or even scrap the wrench inner plate and brake cover

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