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Turning Tool for Regular Polygon Inner Hole Machining

A regular polygon and inner hole technology, which is applied in the field of turning tooling, can solve the problems that it is difficult to effectively meet the high-precision technical requirements of large-scale mechanical equipment, poor reliability and practicability, and difficult to take out punches, so as to achieve low processing cost and universal Good performance and easy processing

Active Publication Date: 2018-07-31
DONGFANG TURBINE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this processing method can realize the processing of non-standard self-made hexagon socket screws, it has technical problems such as low processing accuracy, troublesome processing process, difficult removal of punches from screw parts, low processing efficiency, high labor intensity, and high processing cost. Difficult to effectively meet the high-precision technical requirements of large mechanical equipment, poor reliability and practicability
[0005] It can be seen that due to the lack of effective processing tooling, the existing processing of non-standard regular polygonal inner hole parts including inner hexagonal holes has low machining accuracy, troublesome processing process, low processing efficiency, high labor intensity, and high processing cost. Technical issues need to be resolved urgently

Method used

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  • Turning Tool for Regular Polygon Inner Hole Machining
  • Turning Tool for Regular Polygon Inner Hole Machining
  • Turning Tool for Regular Polygon Inner Hole Machining

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] see figure 1 , figure 2 , image 3 and Figure 4 As shown, the present invention includes a lathe and a tool feed mechanism 5, and the regular polygon inner hole on the workpiece 7 (such as a screw) to be processed is an inner hexagonal hole structure.

[0031] The lathe is a horizontal lathe, and the lathe has a chuck 1 and a tool rest arranged transversely opposite to each other. Chuck 1 is a three-jaw chuck. Chuck 1 is used to clamp the workpiece 7. The processing end surface of the workpiece 7 faces the tool holder. The processing end surface of the workpiece 7 is pre-processed with a circular bottom inscribed in the designed inner hexagonal hole. hole 25; a guide block 2 is fixed on a claw of the chuck 1, and the guide block 2 is arranged along the direction of the claw. The arrangement position of the guide block 2 should avoid the clamping space of the workpiece 7, and the guide block 2 A linear guide hole 24 is provided, and the length of the guide hole 24 ...

Embodiment 2

[0039] The invention includes a lathe and a tool feeding mechanism, and the regular polygonal inner hole on the workpiece (such as a screw) to be processed is an inner hexagonal hole structure.

[0040] The lathe is a horizontal lathe, and the lathe has a chuck and a tool holder arranged transversely opposite to each other. The chuck is a four-jaw chuck. The chuck is used to clamp the workpiece. The processing end of the workpiece is facing the tool holder. On the processing end of the workpiece, a circular bottom hole inscribed in the designed inner hexagonal hole is pre-processed; A guide block is fixed on one of the claws, and the guide block is arranged along the direction of the claw. The arrangement position of the guide block should avoid the clamping space of the workpiece, and a linear guide hole is provided on the guide block. The knife holder is a cross knife holder structure.

[0041] The knife feed mechanism is fixed on the surface of the knife holder facing the ...

Embodiment 3

[0048] The other contents of this embodiment are the same as those in Embodiment 1 or 2, except that the regular polygon inner hole on the processed workpiece is an inner octagonal hole structure; correspondingly, the arc groove on the cam disc is The contour structure of a regular octagon with rounded corners and straight segments with a certain degree of camber.

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Abstract

The invention discloses a turning tool for machining regular polygonal inner holes, which includes a lathe, the lathe has a chuck and a tool rest arranged oppositely; It has a circular bottom hole inscribed in the designed regular polygonal inner hole, and a guide block with a linear guide hole is provided on the chuck; a knife feed mechanism is fixed on the knife holder, and the knife mechanism includes a fixed component, a rotating component, Shift assembly and conversion assembly, the circumferential rotation of the chuck is transmitted to the cam plate through the lever of the rotation assembly, and then the cam plate converts the circumferential rotation displacement into the linear displacement of the translation assembly through the conversion assembly, and the linear displacement of the translation assembly The displacement tool rod drives the tool to realize the cutting process of the regular polygon inner hole on the bottom hole on the workpiece. The invention has the characteristics of high processing precision, easy processing process, high processing efficiency, light labor intensity, low processing cost, etc., and is reliable and practical.

Description

technical field [0001] The invention relates to a turning tool for machining, in particular to a turning tool for machining regular polygon inner holes. Background technique [0002] In the parts of mechanical equipment, regular polygonal inner holes are a common structural form on parts, such as hexagon socket screws. Taking hexagon socket head cap screws as an example, the existing processing technology of regular polygon inner hole parts is described in detail. [0003] The processing of the hexagonal inner hexagonal hole of the inner hexagon screw is mainly realized by cold heading, which requires special cold heading equipment to process a large number of hexagonal inner hexagonal screws of specific standard specifications, which is not conducive to scattered or small batches of non-standard Homemade hexagon socket screw processing. [0004] Non-standard self-made hexagon socket screws are important fasteners on large mechanical equipment (such as generator sets, ship...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23B3/08B23B31/103B23B21/00
CPCB23B3/08B23B31/103B23Q1/25
Inventor 丁继明张发张强程琰曹杰叶敏肖剑
Owner DONGFANG TURBINE CO LTD
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