Press fitting fixture for engine crankshaft sprocket

A technology of crankshaft sprocket and engine, which is applied in the direction of manufacturing tools, metal processing, metal processing equipment, etc., can solve the problems of high labor intensity of the operator, affecting the precision of workpiece pressing, affecting the production progress, etc., to avoid frequent disassembly, improve Assembly efficiency, the effect of reducing labor intensity

Active Publication Date: 2012-07-04
BAODING WEIYI AUTOMOBILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When switching crankshaft workpieces with different crank radiuses, the operator needs to readjust the position of the fixture and inspect the first press-fit workpiece. Not only is the operator labor-intensive, but also there are repeated debugging, which affects the production progress. In addition, The frequent disassembly and assembly of the fixture accelerates the wear of the positioning pin hole, which affects the press-fitting accuracy of the workpiece

Method used

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  • Press fitting fixture for engine crankshaft sprocket
  • Press fitting fixture for engine crankshaft sprocket
  • Press fitting fixture for engine crankshaft sprocket

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Embodiment Construction

[0020] See Figure 1, figure 2 , Figure 5 , the present invention is a universal sprocket press-fitting fixture for two kinds of crankshaft workpieces whose crankshaft crank radiuses are R1 and R2 respectively, and its composition includes an angle limit support 3, a limit block 4, a V-shaped support, a clamping device 2 and Base plate 7, said base plate 7 is arranged horizontally, said angle limit support 3, limit block 4, V-shaped support, and clamping device 2 are all fixed on the base plate 7, and said angle limit support 3 is used to limit crankshaft 8 It is installed under the second connecting rod journal 8-2 of the crankshaft, and it is arranged obliquely with the matching surface of the second connecting rod journal of the crankshaft. The included angle between the matching surface and the base plate 7 is β.

[0021] see figure 1 , figure 2 , the limiting block 4 in the present invention is provided with a base and a vertical wall, and the base is fixedly connect...

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Abstract

The invention discloses a press fitting fixture for an engine crankshaft sprocket. The press fitting fixture comprises an angle spacing support, a spacing block, a V-shaped support, a clamping device and a bottom plate, wherein the bottom plate is horizontally arranged; the angle spacing support, the spacing block, the V-shaped support and the clamping device are all fixed on the bottom plate; the angle spacing support is used for spacing the putting attitude of a crankshaft workpiece and is installed below the second connecting rod neck of the crankshaft; and the cooperation surface of the second connecting rod neck and the angle spacing support is aslant arranged; and an inclined angle between the cooperation surface and the bottom plate is beta. Through adoption of the press fitting fixture for an engine crankshaft sprocket, the labor intensity of operators can be lightened, the production efficiency is improved, the fixture is prevented from being frequently disassembled, the positioning precision of the fixture is stable, and the assembling quality of the crankshaft sprocket is guaranteed.

Description

technical field [0001] The invention relates to a press-fit positioning device for an engine crankshaft sprocket, which is especially suitable for two kinds of crankshafts with different crank radiuses, and belongs to the technical field of engines. Background technique [0002] When the engine crankshaft drives the camshaft with a chain drive, in order to match the valve timing of the engine, the crankshaft sprocket must be assembled with the crankshaft at a set installation angle. At present, the installation of the crankshaft sprocket generally adopts the method of press-fitting the sprocket to the front end of the crankshaft by a press-fitting mechanism. The corresponding crankshaft sprocket press-fitting fixture is designed as an adjustable structure, and the press-fitting angle is guaranteed by two sets of conical positioning pins. When switching crankshaft workpieces with different crank radiuses, the operator needs to readjust the position of the fixture and inspect ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P19/02
Inventor 李纲刘世伟卢顺祥李勇
Owner BAODING WEIYI AUTOMOBILE CO LTD
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