Alignment instrument for eccentric alignment of four-jaw chuck of lathe and alignment method

A four-jaw chuck and straightening technology, which is applied in the direction of chucks, turning equipment, manufacturing tools, etc., can solve the problems of laborious alignment accuracy, difficult quality assurance, and low production efficiency, so as to improve clamping accuracy and simple structure , easy to adjust the effect

Active Publication Date: 2022-07-26
QINGDAO TECHN COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This alignment method is easier to ensure the accuracy of non-eccentric parts alignment, but it is time-consuming, laborious and difficult to ensure alignment accuracy when aligning eccentric parts, resulting in the disadvantages of low production efficiency and difficult quality assurance

Method used

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  • Alignment instrument for eccentric alignment of four-jaw chuck of lathe and alignment method
  • Alignment instrument for eccentric alignment of four-jaw chuck of lathe and alignment method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] like figure 1 As shown in the figure, an alignment instrument for eccentric alignment of a four-jaw chuck of a lathe includes a pressure rod 1, the front end of the pressure rod 1 is provided with an alignment groove 2, and the corner of the alignment groove 2 is provided with an arc portion 3 , the center of the arc portion 3 coincides with the right-angle corner point of the inner wall surface of the alignment groove 2, and the center of the arc portion 3 is provided with a conical slot 4;

[0022] The pressure rod 1 is provided with an insertion hole near the front end. The insertion hole is provided with a radial joint bearing 5. The inner ring of the radial joint bearing 5 is inserted into the correction rod 6, and the correction rod 6 has two parts. Both ends have pointed tips.

Embodiment 2

[0024] like figure 2 As shown, a method for alignment using the alignment instrument, comprising the following steps:

[0025] 1) Draw horizontal, horizontal and vertical cross lines on the workpiece 7 to be processed, and process sample punching holes at the intersection of the cross lines. Install the workpiece 7 on the four-jaw chuck 8, and align the center line of the front and rear jaws with the center line to be processed. The horizontal lines drawn on the workpiece 7 are consistent, and the center lines of the upper and lower jaws are consistent with the vertical lines drawn on the workpiece 7 to be processed.

[0026] 2) Remove the correction rod 6 from the radial spherical plain bearing 5, and then place the rear end of the aligner press rod 1 in the lathe tool holder 9, and adjust the position of the press rod 1 so that the machine tool tailstock tip 10 can be inserted Slot 4, and then make the lathe tool holder 9 clamp the pressing rod 1;

[0027] 3) Move the ali...

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PUM

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Abstract

The invention discloses an alignment instrument for eccentric alignment of a four-jaw chuck of a lathe and an alignment method. The alignment instrument includes a pressing rod, and a front end of the pressing rod is provided with an alignment groove, and the corner of the alignment groove is located at the corner of the alignment groove. There is an arc-shaped part, the center of the arc-shaped part coincides with the right-angle corner point of the inner wall surface of the alignment groove, and the center of the arc-shaped part is provided with a conical slot; the pressure rod is provided with an insertion hole near the front end , a radial joint bearing is arranged in the insertion hole, and the inner ring of the radial joint bearing is inserted with a correction rod. The aligning instrument of the invention has a simple structure and is convenient to use, can improve the clamping accuracy of the workpiece, facilitate the adjustment of the center of the eccentric part, and the aligning method is easy to operate and can quickly and accurately perform alignment.

Description

technical field [0001] The invention relates to the technical field of mechanical tools, in particular to an alignment instrument for eccentric alignment of a four-jaw chuck of a lathe and a alignment method. Background technique [0002] Aligning the workpiece means: installing the workpiece to be processed on the chuck so that the center of the workpiece is consistent with the rotation center of the chuck. This process is called aligning the workpiece. Alignment of the workpiece is very important, and if turning is performed without alignment, a series of quality problems will occur. [0003] In the use of lathes, three-jaw self-centering chucks and single-action chucks are commonly used universal fixtures. The three-jaw self-centering chuck is suitable for clamping round parts, and it is automatically centered after clamping. A single-action chuck, also called a four-jaw chuck, has four unrelated jaws that cannot move radially at the same time like the jaws of a three-j...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23B31/02B23Q3/18
CPCB23B31/02B23Q3/183B23B2231/30
Inventor 李国伟刘居康曲小源刁可春贾春刚李林
Owner QINGDAO TECHN COLLEGE
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