Subway noise-reduction damping ring opening milling fixture

Abstract

The invention discloses a subway noise-reduction damping ring opening milling fixture which comprises a fixture bottom plate of a milling machine. A manual worm gear reducer is fixed to the lower partof the fixture bottom plate; an input shaft of the worm gear reducer is in shaft connection with a transmission shaft; an output shaft of the worm gear reducer is in shaft connection with a clampingpower plate; the clamping power plate is rotatably connected with a clamping mechanism; the clamping mechanism comprises a clamping connecting rod; the clamping connecting rod is rotatably connected with a sliding block; the sliding block is rotatably connected with a clamping forked type body; the clamping forked type body clamps an outer ring of a noise-reduction damping ring positioning ring body; a positioning groove for fixing the noise-reduction damping ring positioning ring body is formed in the fixture bottom plate; and a workpiece opening positioning support seat is fixed onto the noise-reduction damping ring positioning ring body and is rotatably connected with an opening positioning body. The subway noise-reduction damping ring opening milling fixture provided by the invention is used for positioning a noise-reduction damping ring and reliable in positioning and clamping, the processing dimension error is less, the time required for workpiece positioning, clamping and disassembling during the processing process is shortened, and the product production efficiency and the yield are improved.

Description

technical field [0001] The invention belongs to the technical field of mechanical processing and clamping, and in particular relates to a noise reduction and damping ring milling opening clamp for subways. Background technique [0002] In recent years, my country's rail transit has developed rapidly, and the rapid development of rail transit has provided convenience to people's lives. However, rail transit also has some negative factors, among which the impact of noise is particularly prominent. There are many noise reduction schemes for subways. One of the noise reduction schemes is In order to use the noise reduction damping ring, the principle of the noise reduction damping ring is to achieve the purpose of noise reduction through interface damping. The noise reduction damping ring has specific elasticity and surface roughness. The shape of the noise reduction damping ring is an elastic ring-shaped workpiece. The ring shape is relatively large. After the bar material is rol...

AI Technical Summary

Problems solved by technology

[0002] In recent years, my country's rail transit has developed rapidly, and the rapid development of rail transit has provided convenience to people's lives. However, rail transit also has some negative factors, among which the impact of noise is particularly prominent. There are many noise reduction schemes for subways. One of the noise reduction schemes is In order to use the noise reduction damping ring, the principle of the noise reduction damping ring is to achieve the purpose of noise reduction through interface damping. The noise reduction damping ring has specific elasticity and surface roughness. The shape of the noise reduction damping ring is an elastic ring-shaped workpiece. The ring shape is relatively large. After the bar material is rolled and formed, the ring shape expands elastically. It is difficult to position and clamp when the opening is processed. The tightening method is likely to cause uneven compression, large processing size errors, large workpiece shape and position errors, and difficult to guarantee the quality of the workpiece. The length of time will affect the production efficiency and product yield

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