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Clamp for rubber bearing bush and method for machining rubber bearing bush inner hole through clamp

A processing method and rubber shaft technology, applied in metal processing equipment, manufacturing tools, grinding workpiece supports, etc., can solve problems such as melting of the rubber layer, deformation of the inner hole of the rubber bearing bush, etc., to avoid vibration of the knife, prevent taper, prevent Effect of taper bore phenomenon

Inactive Publication Date: 2019-06-11
HARBIN TURBINE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved in the present invention is: the rubber bearing bush adopts the previous processing method, which may easily lead to the deformation of the inner hole of the rubber bearing bush or the melting of the rubber layer, and then provides a processing method for the inner hole of the rubber bearing bush

Method used

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  • Clamp for rubber bearing bush and method for machining rubber bearing bush inner hole through clamp
  • Clamp for rubber bearing bush and method for machining rubber bearing bush inner hole through clamp
  • Clamp for rubber bearing bush and method for machining rubber bearing bush inner hole through clamp

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specific Embodiment approach 1

[0028] Specific implementation mode one: as figure 1 , 2 As shown in and 3, the clamp of the rubber bearing bush in this embodiment includes the same upper half clamp 1-1 and the lower half clamp 1-2, and the middle part of the upper half clamp 1-1 and the lower half clamp 1-2 faces It is recessed outside, and the inner wall of the outward concave part of the upper half clamp 1-1 and the lower half clamp 1-2 is provided with a plurality of semi-circular grooves, and the ear ends on both sides of the upper half clamp 1-1 and the lower half clamp 1-2 Bolt holes are respectively drilled, the notches of the upper half fixture 1-1 and the lower half fixture 1-2 are arranged oppositely and fixedly connected by bolts 2, and the annular groove on the inner wall of the fixture coincides with the annular protrusion on the outer wall of the workpiece.

[0029] The rubber bearing belongs to the assembly, which is mainly composed of the double bearing body and the covering layer. The mate...

specific Embodiment approach 2

[0030] Specific embodiment two: the method for processing the inner hole of the rubber bearing bush described in this embodiment, the specific processing steps are as follows:

[0031] Step 1. Open the upper half fixture 1-1 and the lower half fixture 1-2 of the fixture, place the workpiece between the upper half fixture 1-1 and the lower half fixture 1-2, and perform fixed connection with bolts;

[0032] Step 2. Use the four-jaw chuck on the CNC lathe to clamp one end of the fixture, and use the four-jaw chuck to align it, and clamp the grinding wheel rod to the knife row of the CNC lathe. The grinding wheel rod is aligned with the other end of the workpiece, and the grinding wheel The axis of the rod coincides with the axis of the workpiece;

[0033] Step 3: Grinding the grinding wheel rod along the axis of the workpiece from the proximal end to the distal end of the workpiece, and the workpiece rotates on its own axis until the grinding wheel rod passes through the entire i...

specific Embodiment approach 3

[0040] Specific embodiment three: in the step five described in this embodiment, if there is a taper in the inner hole of the workpiece, the angle between the grinding wheel rod and the axis of the workpiece is adjusted through the numerical control lathe, so that the feed angle of the grinding wheel rod is the same as that of the inner hole of the workpiece. The tapers are complementary, the workpiece rotates on its own axis, and the grinding wheel rod starts to grind from the proximal end of the inner hole of the workpiece to the distal end for hole reaming.

[0041] Other composition and connection methods are the same as those in Embodiment 2.

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Abstract

The invention discloses a clamp for a rubber bearing bush and a method for machining a rubber bearing bush inner hole through the clamp, and belongs to the field of mechanical machining. Traditional rubber bearing bush machining methods are likely to cause deformation of rubber bearing bush inner holes or rubber layer melting. The method comprises the specific steps that 1, a workpiece is clampedby the clamp; 2, one end of the clamp is clamped and aligned through a numerical control lathe, a grinding wheel bar is clamped to a tool array, and the grinding wheel bar is aligned to the other endof the workpiece; 3, the grinding wheel bar grinds the workpiece from the near end to the far end, the workpiece is rotated automatically, and the grinding wheel bar penetrates in the whole workpiece;4, grinding is stopped, and the workpiece releases stress when in a natural state; 5, the rotation direction of the workpiece is clamped and aligned, the numerical control lathe is used for detectingthe size of inner hole of the workpiece, the transverse displacement of the grinding wheel bar is adjusted, the workpiece is rotated automatically, and the grinding wheel bar starts to grind the inner hole of the workpiece from the near end to the far end; and 6, grinding is stopped, and the workpiece releases stress when in a natural state. The method is used for machining the rubber bearing bush inner hole.

Description

technical field [0001] The invention belongs to the field of mechanical processing, and in particular relates to a jig for a rubber bearing bush and a method for processing the inner hole of the rubber bearing bush by using the jig. Background technique [0002] The rubber bearing is an assembly, mainly composed of a double bearing body and a covering layer. The material of the double bearing body is HMn58, which is soft and sticky. The material of the covering layer is rubber, which is not only soft but also easy to melt. In the past, turning was used. When processing the inner hole of the rubber bearing pad, the turning force is large, resulting in deformation of the inner hole of the rubber bearing pad or melting of the rubber layer; at the same time, if the processing method and cutting parameters are not selected well during the processing, it is easy to produce a tapered inner hole and rubber Problems such as melting of the covering layer eventually lead to product qua...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24B41/06B24B19/00B24B19/22
Inventor 杨凤冯彪陈国宏张昌成郭洁鲁航杨庆仁孙兆亮庄乾才董礼涛刘尚
Owner HARBIN TURBINE