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The device for planing the keyway in the inner hole of small workpiece

A technology of small workpieces and inner holes, which is applied in the direction of planing machines, driving devices, feeding devices, etc., can solve the problems of too much deformation of the cutter bar, the inability of the cutter to cut into the workpiece, and different keyway depths, etc., to achieve favorable cutting processing and rigidity Greater and less frictional effect

Inactive Publication Date: 2016-06-08
UNIV OF JINAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

For small batch production, planer is usually used for planing processing, and the tool bar is fixed on the tool holder as a cantilever support. Especially when the inner hole of the workpiece is small, the tool bar is too thin to cause great deformation, resulting in different depths of key grooves at both ends; When the shank is deformed too much, the tool cannot cut into the workpiece at all

Method used

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  • The device for planing the keyway in the inner hole of small workpiece

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Embodiment Construction

[0034] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0035] like figure 1 As shown, a device for planing the keyway of the inner hole of a small workpiece includes a bow-shaped knife rest 1, and the bottom of one end of the bow-shaped knife rest 1 is hinged to a fixed piece or the ground through a rotating shaft 3 and a positioning sleeve 2. The bow-shaped knife rest 1 The other end is suspended, and links to each other with a cam 15 by lever 8. When the size of the tool is different from the width of the keyway, the position of the tool can be adjusted appropriately. By changing the axial position of the bow-shaped tool holder 1 on the rotating shaft 3, it is fixed by two positioning sleeves 2 to meet the needs of keyways of different widths.

[0036] The upper part of the bow-shaped knife rest 1 is equipped with a knife bar 5 suspended horizontally in the middle, that is, the two ends of the knife bar ...

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Abstract

The invention discloses a device for planing the keyway of the inner hole of a small workpiece, which comprises a bow-shaped knife rest, one end of the bow-shaped knife rest is hinged on the ground, the other end of the bow-shaped knife rest is suspended in the air, and is connected with a cam through a lever. The upper part is equipped with a horizontally set tool bar suspended in the middle, and a tool is installed on the tool bar; the cam is connected with the driving wheel of the power mechanism through a synchronous belt, and the eccentric position of the driving wheel is hinged with a connecting rod, and the other end of the connecting rod is connected with a horizontally arranged tool bar. One end of the ram is hinged, and the other end of the ram is fixed to a vertically arranged skateboard box. An up-and-down adjustment mechanism is provided in the skateboard box. A slide plate connected with the up-down adjustment mechanism is installed on one side of the skateboard box, and a positioning element is fixed on one side of the slide plate. The positioning base surface of the component matches the inner hole and the positioning end surface of the workpiece to be processed respectively; the power mechanism drives the ram, the slide plate and the positioning element to reciprocate horizontally, and the power mechanism synchronously drives the cam to rotate. The hinged end swings up and down.

Description

technical field [0001] The invention relates to a device for planing a keyway in the inner hole of a small workpiece. Background technique [0002] In machining, there are often some small cast iron sleeves, small steel gears, etc., whose inner holes need to be processed with keyways. Since the inner hole is small and the keyway width is different, if broaching is used, broaches of various specifications need to be customized, and the cost of processing equipment and working hours on the broaching machine is relatively high. For small batch production, planer is usually used for planing processing, and the tool bar is fixed on the tool holder as a cantilever support. Especially when the inner hole of the workpiece is small, the tool bar is too thin to cause great deformation, resulting in different depths of key grooves at both ends; When the shank deforms too much, the tool cannot cut into the workpiece at all. Contents of the invention [0003] The purpose of the prese...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23D1/06B23D13/06B23Q5/027B23Q5/40
Inventor 侯志坚
Owner UNIV OF JINAN