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Clamp for drilling oil hole on crankshaft

A crankshaft oil hole and fixture technology, which is applied in boring/drilling, drilling/drilling equipment, clamping and other directions, can solve the problems of high fixture manufacturing cost, long production cycle, and many clamping times, etc. The effect of good quality, low manufacturing cost and strong versatility

Inactive Publication Date: 2010-01-20
TIANRUN IND TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

One process drills the straight oil hole of the main shaft, and the other process drills the straight oil hole of the connecting rod. Because each crankshaft has different oil hole angles, crankshaft main shaft and connecting rod diameter requirements, this requires two sets of fixtures for each crankshaft. In addition to poor versatility , but also caused high manufacturing cost of the fixture, long production cycle, many clamping times, and low efficiency

Method used

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  • Clamp for drilling oil hole on crankshaft
  • Clamp for drilling oil hole on crankshaft
  • Clamp for drilling oil hole on crankshaft

Examples

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Embodiment Construction

[0017] figure 1 It is a schematic diagram of the assembly structure of the present invention and the crankshaft. from figure 1 It can be seen that a crankshaft oil hole drilling jig includes a clamp body 15, a clamping mechanism, a connecting rod positioning mechanism, a drilling formwork frame mechanism, and the like. All kinds of crankshafts are clamped and fixed in the fixture according to drilling needs, so as to carry out the operation of drilling crankshaft oil holes. The jigsaw mechanism is generally a main shaft jigsaw mechanism, and it can also be two kinds of spindle jigsaw mechanism and connecting rod jigsaw mechanism. The connecting rod jig frame mechanism can be selectively used as required. In this way, it can not only be used to drill the straight oil hole of the main journal of the crankshaft, but also can drill the straight oil hole of the connecting rod neck according to the needs.

[0018] from figure 1 , figure 2 It can be seen that the clamping mech...

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Abstract

The invention relates to a clamp for drilling oil holes on a crankshaft, which comprises a clamp body, a clamping mechanism, a connecting rod positioning mechanism and a drilling jig frame mechanism, wherein the clamping mechanism is provided with a drilling jig supporting seat, a pressing plate and a replaceable cushion block; the drilling jig supporting seat is movably arranged on the clamp body; the pressing plate is arranged on a pressing plate strut on the drilling jig supporting seat through a hinge pin; the lower part of the pressing plate is provided with a hold-down bolt; the hold-down bolt is screwed in, passes through the pressing plate and presses against the drilling jig supporting seat; a turn-knob compresses the bolt; a spindle neck is compressed or loosened through the lever action of the hinge pin arranged on the pressing plate and the pressing plate strut; the connecting rod positioning mechanism comprises a positioning column and a liner plate; the positioning column is arranged in a replaceable liner plate positioning hole; the top of the positioning column supports a connecting rod neck; and the drilling jig frame mechanism comprises the drilling jig supporting seat, a drilling jig plate and a drill bush. The clamp has the advantages of reasonable structure, convenient assembly, low manufacturing cost, strong popularity, and high efficiency of drilling the oil holes, greatly shortens the manufacturing period, and is suitable for clamping various crankshafts for drilling straight oil holes.

Description

technical field [0001] The invention relates to a jig, in particular to a jig for drilling crankshaft oil holes. Background technique [0002] We know that at present, one of the crankshaft straight oil holes is on the crankshaft main journal, and the other is on both the main journal and the connecting rod journal. The latter processing needs to be respectively equipped with a set of drilling jigs on two radial drilling machines and completed in two processes. One process drills the straight oil hole of the main shaft, and the other process drills the straight oil hole of the connecting rod. Because each crankshaft has different oil hole angles, crankshaft main shaft and connecting rod diameter requirements, this requires two sets of fixtures for each crankshaft. In addition to poor versatility , It also causes high manufacturing cost of the fixture, long production cycle, many clamping times, and low efficiency. Contents of the invention [0003] The technical problem ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23Q3/06B23B47/28B23B41/12
Inventor 宋文友于秋明周先忠丛建臣于建波
Owner TIANRUN IND TECH CO LTD
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