Correction device suitable for flexible automatic machining

Abstract

The utility model provides a correcting device suitable for flexible automatic machining, belongs to a self-centering clamping correcting device in the numerical control machining process in the technical field of machining, and solves the problem that a gap is generated between the axial reference of a part and the axial positioning surface of a soft claw due to the fact that the part is not clamped in place in the Z-axis direction. And the coaxiality and the parallelism of the two end faces in part machining are influenced by the generated positioning error. The correcting device comprises a top cover, a sealing cover, a shaft sleeve, an ejector rod, a spring and a screw. The center of the top cover is connected with the front end of the ejector rod through a screw; the spring is placed in the shaft sleeve, and the opening part of the shaft sleeve is fixedly connected with the sealing cover; the rear end of the ejector rod penetrates through a center hole of the sealing cover. Two ends of the spring are fixed at the bottom of the shaft sleeve and the rear end of the ejector rod respectively.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the processing technical field, and relates to a self-centering three-jaw chuck clamping part correction device mechanism in numerical control processing, in particular to an adjustable auxiliary self-centering clamping device. BACKGROUND

[0002] In the current automatic production line numerical control processing, the most common and easiest problem of the self-centering three-jaw chuck clamping part is that the Z-axis direction clamping is not in place, which causes the axial reference of the part and the soft jaw axial positioning surface to have a gap, generates a positioning error, and thus affects the coaxiality and the parallelism of the two end faces in the part processing, so that the part cannot meet the technical requirements of the drawing and causes the part to be repaired or scrapped. UTILITY MODEL CONTENTS

[0003] The utility model solves the technical problem that the axial reference of the part and the soft jaw axial positioning surface have a gap due to the Z-axis direction clamping of the part not being in place, which generates a positioning error and affects the coaxiality and the parallelism of the two end faces in the part processing.

[0004] The utility model is also a correction device for correcting the clamping part of a mechanical hand, which solves the problem of inaccurate Z-direction positioning reference of the part, and can effectively eliminate the positioning error generated by the clamping of the mechanical hand, improve the part processing quality, and be suitable for large-scale actual production.

[0005] The technical scheme of the utility model is as follows: a correction device suitable for flexible automatic processing, characterized by comprising a top cover, a cover, a shaft sleeve, a top rod, a spring and a screw.

[0006] Further, the shaft sleeve is installed on the tool rest of the machine tool.

[0007] Further, the top cover is made of nylon or polyformal material.

[0008] Further, the top cover is made of non-metallic material.

[0009] Further, the front end of the top cover is consistent in shape with the outer shape of the processed part.

[0010] Further, the top rod and the cover are made of 45 steel.

[0011] Further, the tail of the top rod has a disc, and the diameter of the disc is consistent with the inner diameter of the shaft sleeve.

[0012] Furthermore, the bushing opening is connected to the cover by screws.

[0013] Furthermore, the correction device is installed in one of the tool positions on the CNC lathe tool turret.

[0014] Furthermore, the front end of the top cover is a cylindrical groove.

[0015] The technical effects of this utility model are:

[0016] The application of this utility model can achieve an axial positioning accuracy of less than 0.015 mm for parts;

[0017] This invention solves the problem that "when a robotic gripper clamps a part, it cannot guarantee that the part positioning surface and the three-jaw positioning surface are in close contact without gap, resulting in incomplete part positioning and improper clamping".

[0018] These three utility models effectively utilize non-metallic materials such as rubber and 45 steel, and are extremely easy to implement;

[0019] These four utility models have simple structures, high reliability, and are easy to manufacture; Attached Figure Description

[0020] Figure 1 This is an exploded three-dimensional structural diagram of the present invention;

[0021] Figure 2 This is a two-dimensional schematic diagram of the present invention;

[0022] Among them: 1. Top cover; 2. Sealing cover; 3. Bushing; 4. Push rod; 5. Spring. Detailed Implementation

[0023] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings:

[0024] like Figure 1 As shown, this utility model provides a correction device adapted to flexible automatic processing, also known as a straightening device; it includes a top cover 1, a sealing cover 2, a bushing 3, a top rod 4, a spring 5, and a screw 6.

[0025] The top cover 1 and the top rod 4 are connected by screws 6. The bushing 3 is cylindrical and contains a spring. The opening of the bushing 3 is connected to the cover 2 by screws. The top rod 4 passes through the center hole of the cover 2. The two ends of the spring are fixed to the bottom of the bushing and the rear end of the top rod, respectively.

[0026] like Figure 2As shown, by the shaft sleeve 3, spring, ejector rod, top cover, cover, screw six parts, with numerical control lathe as an example, shaft sleeve 3 is installed on the machine tool tool rest, in order to prevent the top cover 1 from hurting the workpiece, nylon, polyformaldehyde and other non-metallic materials are used when selecting the material of the top cover 1, secondly, the top cover 1 and the ejector rod 4 are connected by screws, the shape of the top cover 1 can be determined according to the outer structure size of the part to be machined, the cover 2 and the shaft sleeve 3 are also connected by screws, in order to prevent the device from rusting, the cover 2 plays a guiding and fixing role for the ejector rod, since the ejector rod 4 and the cover 2 move back and forth, the cover 2 and the ejector rod 4 are made of 45 steel and are subjected to corresponding heat treatment to increase the wear resistance (such as the working schematic view), and the action is controlled by numerical control instructions (the numerical control lathe application program is attached).

[0027] According to the structure size of the part, the top cover 1 with appropriate size is matched, the top cover 1 is connected with the cover 2 and the ejector rod 4 through the screw 6, and is installed in the shaft sleeve 3 in which the spring 5 is installed.

[0028] The utility model discloses the action process and principle:

[0029] The correction device is installed in one tool position in the numerical control tool disc, and is concentric with the chuck spindle through correction. When the flexible automatic line runs, the manipulator (soft three-jaw chuck) clamps the part and withdraws, rotates the tool position clamping device (the tool position of the correction device is rotated to align the part), makes the top cover 1 of the correction device tightly abut against the end surface of the part, and releases the soft three-jaw chuck for 1 second through control program instruction M11; the self-centering clamping correction device pushes the ejector rod 4 tightly through the elastic force of the spring, drives the top cover 1 to be able to eliminate the gap of the part in the Z-axis direction and make the part concentric with the spindle, and then the soft three-jaw chuck clamps the part immediately, and at this time, the positioning error of the part has been eliminated under the pressure of the spring 5.

[0030] Its application is controlled by numerical control instructions, and the running machining program is as follows

[0031] .

Claims

1. A correction device adapted to flexible automatic processing, characterized in that, It comprises a top cover (1), a cover (2), a shaft sleeve (3), a top rod (4), a spring (5) and a screw (6). The top cover (1) is connected with the front end of the top rod (4) through the screw (6). The shaft sleeve (3) is cylindrical and internally placed with the spring. The shaft sleeve (3) is fixedly connected with the cover (2) at the mouth. The rear end of the top rod (4) passes through the center hole of the cover (2), and the two ends of the spring are fixed at the bottom of the shaft sleeve and the rear end of the top rod respectively.

2. A correction device adapted for flexible automatic processing according to claim 1, characterized in that The shaft sleeve (3) is installed on the tool holder of a machine tool.

3. The correction device of claim 1, wherein, The top cover is made of nylon or polyformaldehyde material.

4. The correction device of claim 1, wherein, The top cover (1) is made of non-metallic material.

5. The correction device of claim 1, wherein, The front end of the top cover is in the same shape as the outer shape of the machined part.

6. The correction device of claim 1, wherein, The top rod and the cover are made of 45 steel.

7. The correction device of claim 1, wherein, The tail of the top rod is provided with a disc with the same diameter as the inner diameter of the shaft sleeve.

8. The correction device of claim 1, wherein, The mouth of the shaft sleeve (3) is connected with the cover (2) through a screw.

9. The correction device of claim 1, wherein, The correction device is installed in one tool position of a numerical control tool disc.

10. The correction device of claim 1, wherein, The front end of the top cover (1) is in the shape of a cylindrical groove.

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