CN104708473A - Method for using thin-walled pipe workpiece positioning clamp - Google Patents

Abstract

The invention relates to a method for using a thin-walled pipe workpiece positioning clamp. The method for using the thin-walled pipe workpiece positioning clamp comprises the following steps that firstly, the clamping section of a positioning rod is clamped on a three-jaw chuck of a lathe; secondly, a workpiece is arranged on a positioning section in a sleeving mode, and one end face of the workpiece is made to abut against a convex shoulder; thirdly, an insert block is installed on the positioning section and is embedded in the middle of the positioning section; fourthly, a screw and a gasket are installed to clamp the insert block, and the insert block abuts against the other end face of the workpiece; fifthly, the workpiece is turned. The method for using the thin-walled pipe workpiece positioning clamp has the advantages that the structure is simple, the method is economical and practical, and machining precision is high.

Description

The using method of light-wall pipe workpiece positioning clamp

Technical field

The present invention relates to technical field of tooling clamps, particularly relate to a kind of positioner of processing precise class light-wall pipe workpiece.

Background technology

The workpiece of thin-walled tubes is as shown in Figure 1 when carrying out turning to it, due to thinner, if carry out clamping with lathe chuck, workpiece very easily deforms, cause machining accuracy undesirable, therefore the mode to its two ends clamp can be adopted to process, but also there is inconsistent situation in the endoporus aperture, two ends of this type of thin-wall part, adopt simple two ends to clamp and also can bring the situation that positioning precision is not high, the machining accuracy of workpiece can be affected too.

Summary of the invention

The present invention is directed to above-mentioned shortcoming of the prior art, provide a kind of using method of light-wall pipe workpiece positioning clamp, its structure is simple, and economical and practical, machining accuracy is high.

The technical solution adopted in the present invention is as follows:

The using method of light-wall pipe workpiece positioning clamp, comprises the steps:

The first step, is clamped on the scroll chuck of lathe by the gripping section of backstay;

Second step, is placed on workpiece on positioning section and an end face of workpiece and convex shoulder is offseted;

3rd step, to be contained in insert on positioning section and to be embedded between insert and positioning section;

4th step, mounting screw and packing ring clamp insert, and insert withstands the other end of workpiece;

5th step, machines workpiece.

The invention has the advantages that: on backstay, convex shoulder is set, on the positioning section of backstay, insert is installed to coordinate with inner hole of workpiece simultaneously, dog screw is installed on the top of positioning section be fixed insert, the gripping section that adding only needs clamping position bar man-hour can carry out turning processing to workpiece, structure is simple, economical and practical, machining accuracy is high.

Accompanying drawing explanation

Fig. 1 is the front sectional view of workpiece.

Fig. 2 is using state figure of the present invention.

Detailed description of the invention

Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described.

As shown in Figure 2, the present invention includes backstay, described backstay comprises gripping section 1, with convex shoulder 2 on described backstay, convex shoulder 2 can withstand one end end face of workpiece 3, positioning section 4 top of described backstay is with locating hole, the cylindrical cover of positioning section 4 has T-shaped insert 7, dog screw 6 is installed in described locating hole, on screw 6, cover has packing ring 5 to withstand the end face of insert 7, insert 7 matches with the endoporus of workpiece 3, play the effect supporting workpiece 3, especially workpiece 3 two ends endoporus aperture different time, the effect of insert 7 is particularly important, when the diameter of bore at workpiece 3 two ends changes, insert 7 can be changed according to actual conditions.

Using method of the present invention is as follows:

The first step, is clamped on the scroll chuck of lathe by the gripping section 1 of backstay;

Second step, is placed on workpiece 3 on positioning section 4 and an end face of workpiece 3 and convex shoulder 2 is offseted;

3rd step, to be contained in insert 7 on positioning section 4 and to be embedded between insert 7 and positioning section 4;

4th step, mounting screw 6 and packing ring 5 pairs of inserts 7 clamp, and insert 7 withstands the other end of workpiece 3;

5th step, machines workpiece 3.

More than describing is explanation of the invention, and be not the restriction to invention, limited range of the present invention, see claim, within protection scope of the present invention, can do any type of amendment.

Claims (1)

1. the using method of light-wall pipe workpiece positioning clamp, is characterized in that: comprise the steps:

The first step, is clamped on the scroll chuck of lathe by the gripping section of backstay;

Second step, is placed on workpiece on positioning section and an end face of workpiece and convex shoulder is offseted;

3rd step, to be contained in insert on positioning section and to be embedded between insert and positioning section;

4th step, mounting screw and packing ring clamp insert, and insert withstands the other end of workpiece;

5th step, machines workpiece.