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Clamp for grinding external thread and method thereof

A technology of external threads and fixtures, which is applied in the field of fixtures for grinding precision screws and worms, can solve the problems of expensive equipment, unsatisfactory grinding quality, and low grinding precision, and achieves convenient implementation, simple structure, and high precision. Effect

Active Publication Date: 2009-03-25
OECHSLER PLASTIC PROD TAICANG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003]The existing grinding method has the problem of low grinding accuracy, especially the large position error between the thread head and the head
Although complex CNC equipment can be used to improve thread grinding accuracy, the equipment is expensive and the grinding quality is still not very satisfactory

Method used

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  • Clamp for grinding external thread and method thereof
  • Clamp for grinding external thread and method thereof
  • Clamp for grinding external thread and method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] A fixture for grinding external threads is used for grinding precision screws and worms.

[0020] Referring to Fig. 1, Fig. 2A, Fig. 2B, the fixture includes a screw rod 6 with one end connected to one end of the workpiece 7 to be processed, a screw fixing block 4 with a through hole, and the screw rod 6 is movably inserted in the in the through hole described above.

[0021] A first positioning through hole 41 , a second positioning through hole 42 , a third positioning through hole 43 , and a fourth positioning through hole 44 are sequentially opened on the threaded fixing block 4 along the extending direction of the screw rod 6 .

[0022] The screw rod 6 is also provided with an annular groove 47 on the part without external thread, the circumferential cross-sectional shape of the annular groove 47 is angular, and the shape of the angular shape is in the The geometry is similar in principle.

[0023] The clamp also includes a pin 5 inserted into one of the above-me...

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PUM

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Abstract

The invention relates to an external thread grinding jig and an external thread grinding method, and the jig comprises a screw with one end part connected with one end part of a workpiece, and a screw fixed block provided with a through hole, the screw is movably inserted into the through hole, and the lead of the screw is the same with that of the workpiece; and a lug which is clamped between screw teeth for limiting the screw teeth from moving along the helical line trace relative to the screw fixed block is also arranged on the wall of the through hole. The invention provides the external thread grinding jig with a brand new structure, the principle of the jig can make the workpiece realize the screw thread travel relative to a grinding head at a time rather than the traditional movement synthesis mode, then the external thread shape is more accurate, and the invention has advantages of simple structure, convenient implementation and reduced costs.

Description

technical field [0001] The invention relates to a fixture and a method for grinding external threads using the fixture, in particular to a fixture specially used for grinding precision screws and worms. Background technique [0002] In the prior art, there is no fixture specially used for grinding precision external threads. When grinding precision external threads, the operator usually clamps the workpiece to be ground on the main fixture of a special machine tool and rotates at a low speed so that the grinding head (such as a profiling grinding wheel, Tools, etc.) move along the machine tool spindle at a predetermined speed to complete the precision grinding of external threads. When the workpiece to be ground has two or more threads, after finishing one thread grinding, adjust the position of the workpiece relative to the grinding head before grinding the next thread. [0003] The existing grinding method has the problem of low grinding precision, especially a large posi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23G1/44B23G1/36B23Q3/12
Inventor 黄建昌
Owner OECHSLER PLASTIC PROD TAICANG