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Small inner bore lathe grooving tool

A technology of inner hole and turning groove, which is applied in the field of turning tools, which can solve the problems of turning out and small inner hole size, etc.

Inactive Publication Date: 2010-07-21
吴淼东
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, some parts have small inner holes, and the grooves in them cannot be turned on a lathe, let alone processed on a boring machine.

Method used

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Examples

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Embodiment Construction

[0014] Accompanying drawing is the small inner hole grooving cutter designed according to the oil storage tank in the needle valve inner hole of processing 195 diesel engine fuel injectors. The inner hole of the needle valve is φ6 mm, and the maximum outer circle of the oil storage tank is φ9.3 mm. Processing is very difficult. See accompanying drawing 1, accompanying drawing 2, accompanying drawing 3 and accompanying drawing 4 for the specific design scheme of the small inner hole grooving cutter.

[0015] In Fig. 2, the small plane at the front end of the bolt (4) is pressed against the plane of the large outer circle of the eccentric sleeve (3) to fix the eccentric sleeve (3) in the hole in front of the cutter body (6) so that the eccentric sleeve (3) The axis line of the small outer circle and the axis line of the eccentric hole are all in the plane parallel to the installation bottom surface of the cutter body (6). The turning tool (2) is contained in the eccentric hole...

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Abstract

The invention relates to a small inner bore lathe grooving tool. A tool tip of a turning tool shelters in an eccentric sleeve small excircle and enters a component inner bore, the turning tool rotates in the eccentric sleeve, and the tool tip gradually reaches out of the eccentric sleeve small excircle to cut the component so as to process a groove in the inner bore. The eccentric sleeve is fixedin the bore in front of the tool body, the turning tool is arranged in an eccentric bore of the eccentric sleeve, a handle is fixed at the rear end of the tool holder of the turning tool, the tool tip of the turning tool and the handle are respectively arranged at two sides of the axle center of the tool holder; when the tool tip is within the eccentric sleeve small excircle, a small cylinder of the handle leans against the end face of a locating screw; when the turning tool rotates, the tool tip cuts the component outside the eccentric sleeve small excircle, when the other side of the small cylinder leans against the end face of the locating screw, the inner diameter formed by the tool tip processing component is the size needed by the component inner bore groove. The eccentric sleeve small excircle and the component inner bore have a clearance of 0.02-0.04 millimeter. The small inner bore lathe grooving tool can process the groove in the component small inner bore conveniently, precisely and economically, thus solving the challenge in machining.

Description

technical field [0001] The invention relates to metal cutting tools for machining mechanical parts, especially grooving tools. Background technique [0002] In mechanical manufacturing, there are grooves that need to be processed in the inner holes of some parts. When the inner hole size is large, it is generally turned on a lathe with a turning tool. It can also be processed on a boring machine with a radial feed mechanism. If Mr. Chen Shuo's patent is used: 200410024574.9 "Radial feed boring cutter" processes the elastic retaining ring groove and O-ring groove in the hole of some parts. However, some parts have small inner holes, and the grooves therein cannot be turned out on a lathe, let alone processed on a boring machine. This problem has always been a difficult problem in machining. Contents of the invention [0003] The invention provides a small inner hole grooving cutter, which is used to process grooves in small-sized inner holes of parts on a lathe or simil...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23B5/48
Inventor 刘其红吴淼东
Owner 吴淼东
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