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Positioning and Clamping Mechanism for Brake Outer Circle Machining

A positioning clamping and brake technology, which is applied in the direction of metal processing machinery parts, manufacturing tools, positioning devices, etc., can solve problems such as uneven brake gaps and out-of-tolerance braking surfaces of brake workpieces, and achieve the elimination of gaps, installation and disassembly convenient effect

Active Publication Date: 2019-04-05
FANGSHENG AXLE LIUZHOU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the positioning tooling for outer circle processing of drum brakes uses a positioning mandrel and the brake base plate of the brake for small gap positioning; during processing, the workpiece is in contact with the processing tool, and due to the existence of a matching gap, the brake base plate will move towards the gap. One side deviation will often cause the braking surface of the processed brake workpiece to be out of tolerance. When the tolerance of the positioning hole of the brake base plate deviates upwards, and the positioning tooling wears and deviates downwards, this tolerance is particularly obvious. When assembling the brake drum , often leads to uneven brake clearance on both sides

Method used

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  • Positioning and Clamping Mechanism for Brake Outer Circle Machining
  • Positioning and Clamping Mechanism for Brake Outer Circle Machining
  • Positioning and Clamping Mechanism for Brake Outer Circle Machining

Examples

Experimental program
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Effect test

Embodiment 1

[0034] A positioning and clamping mechanism for brake outer circle processing, see Figure 1 to Figure 2 , including a pressure plate 1, a spring expansion piece 2, a positioning connection seat 3, a base 6, a pull rod 7, the base 6 is connected to the machine tool, the lower end of the positioning connection seat 3 is set on the upper end of the base 6, and the key 5 is connected to the base The seat 6 is fixedly connected; the upper end surface of the positioning connection seat 3 is connected to the workpiece 4, and the upper end surface of the positioning connection seat 3 is provided with a positioning step II; the pressure plate 1 is located above the positioning connection seat 3, and the bottom of the pressure plate 1 There is a positioning step I, and the spring expansion piece 2 is sleeved between the positioning step I and the positioning step II. One end of the pull rod 7 is fixed on the pressure plate 1 through a fastener—a nut, and the other end of the pull rod 7...

Embodiment 2

[0036] A positioning and clamping mechanism for brake outer circle processing, see Figure 3 to Figure 4 , including a pressing plate 1, a spring expansion piece 2, a positioning connection seat 3, a base 6, a pull rod 7, the base 6 is connected to the machine tool, the positioning connection seat 3 includes a positioning seat 301, a connecting base 302, and the upper end of the positioning seat 301 The end surface is connected to the workpiece 4, and the upper end surface of the positioning seat 301 is also provided with a positioning step II, and the positioning seat 301 and the connecting base 302 are connected together by fastener bolts; the connecting base 302 is set on the base 6, and is fixedly connected to the base 6 through the key 5; the pressure plate 1 is located above the positioning seat 301, and the bottom of the pressure plate 1 is provided with a positioning step I, and the spring expansion piece 2 is sleeved on the positioning Between step I and positioning s...

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Abstract

The invention discloses a positioning and clamping mechanism for machining the outer circle of a brake, and relates to a positioning and clamping mechanism for outer circle machining. The positioning and clamping mechanism comprises a pedestal, a pull rod, a pressing plate, a spring tensioning sheet and a positioning connection base. The pedestal is connected with a machine tool. The lower end of the positioning connection base is arranged at the upper end of the pedestal in a sleeving mode and is further fixedly connected with the pedestal through a key. The upper end face of the positioning connection base is connected with a workpiece. The pressing plate is located above the positioning connection base, and the spring tensioning sheet is installed between the pressing plate and the positioning connection base. One end of the pull rod is fixed to the pressing plate through a fastener, and the other end of the pull rod sequentially penetrates through an inner hole of the pressing plate, an inner hole of the spring tensioning sheet, an inner hole of the positioning connection base and an inner hole of the pedestal and stretches out of the lower side of the pedestal. The outer circle of the pull rod is in sliding fit with the inner hole in the upper end of the positioning connection base. By means of the positioning and clamping mechanism, the gap between a positioning tool and a brake bottom plate can be removed, the positioning and clamping mechanism has the characteristics of being convenient to mount and dismount, low in maintenance cost, reliable in structure and capable of improving machining accuracy, and application and popularization are made easy.

Description

technical field [0001] The invention relates to a positioning and clamping mechanism for machining an outer circle, in particular to a positioning and clamping mechanism for machining an outer circle of a brake. Background technique [0002] At present, the positioning tooling for outer circle processing of drum brakes uses a positioning mandrel and the brake base plate of the brake for small gap positioning; during processing, the workpiece is in contact with the processing tool, and due to the existence of a matching gap, the brake base plate will move towards the gap. One side deviation will often cause the braking surface of the processed brake workpiece to be out of tolerance. When the tolerance of the positioning hole of the brake base plate deviates upwards, and the positioning tooling wears and deviates downwards, this out-of-tolerance is especially obvious. When assembling the brake drum , often leads to uneven brake clearance on both sides. Contents of the invent...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23Q3/00
CPCB23Q3/00B23Q2703/10
Inventor 吴军万李利民荣立帅熊伟张武冠曾勇彭钦飙张智衡
Owner FANGSHENG AXLE LIUZHOU
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