Lathe auxiliary tool capable of adjusting center of part

Abstract

The utility model discloses a lathe assistive device capable of adjusting the center of a part. The lathe assistive device comprises a clamp body and four sets of set screws. The clamp body comprises a connecting part and a clamping part, and the connecting part is of a cylindrical structure or a circular tube structure; the clamping part is of a cylindrical structure; the connecting part and the clamping part are coaxial, four sets of threaded holes are formed in the side wall of the clamping part, each set of threaded holes are formed in the same bus of the clamping part, and a set screw is arranged in each threaded hole. The device is simple in structure and low in cost; when the clamping device is used, the connecting part of the clamping device is clamped by an automatic centering three-jaw chuck of a numerical control lathe or a turning and milling machining center by utilizing a reference conversion method, a product is arranged on the clamping part of the clamping device, and the two symmetrical set screws are respectively adjusted to enable the rotating center of the product to shift; the rotation center of the product coincides with the axis of the automatic centering three-jaw chuck of the machine tool; operation is convenient, the part clamping center can be adjusted, and the machining quality of products is guaranteed.

Description

Technical Field

[0001] The utility model relates to a lathe accessory capable of adjusting the center of a part. Background Art

[0002] In turning machining, the centers of many products need to be corrected during turning. With the popularization and application of numerical control turning equipment and multi-functional turning centers, the problem of correcting the rotation center of products has become more prominent. Because the numerical control turning equipment is equipped with automatic centering three-jaw chucks, and there is no standard interface for converting to four-jaw chucks, it is impossible to correct the shape of the blank on the numerical control lathe, resulting in uneven remaining amounts. If the pitch circle center of a gear is not corrected before turning the reference inner hole after carburizing and quenching, there will not be enough remaining amount during gear grinding, leading to scrapping. Summary of the Invention

[0003] In order to solve the above technical problems, the utility model provides a lathe accessory with a simple structure, low cost, and capable of adjusting the clamping center of a part, namely a lathe accessory capable of adjusting the center of a part.

[0004] The technical solution adopted by the utility model is as follows: a lathe accessory capable of adjusting the center of a part, including a chuck body and four groups of set screws; the chuck body includes a connecting part and a clamping part, the connecting part is of a cylindrical structure or a circular tube structure; the clamping part is of a cylindrical structure; the connecting part and the clamping part are coaxial, and four groups of threaded holes are provided on the side wall of the clamping part, each group of threaded holes is arranged on the same generatrix of the clamping part, and a set screw is respectively arranged in each threaded hole.

[0005] Furthermore, it further includes four pressing strips, and the four pressing strips are respectively located at the inner ends of the four groups of set screws.

[0006] Furthermore, the four groups of threaded holes are evenly arranged along the circumferential direction.

[0007] Furthermore, a pressing strip groove is provided on the inner side wall of the clamping part corresponding to each group of threaded holes, and the pressing strip is placed in the pressing strip groove.

[0008] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0009] The utility model has a simple structure and low cost; when in use, by using the reference conversion method, the automatic centering three-jaw chuck of the numerical control lathe or the turning and milling center clamps the connecting part of the utility model, the product is installed on the clamping part of the utility model, and then the non-machined surface of the product is clamped by the set screws of the utility model. The rotation center of the product is shifted by respectively adjusting two symmetric set screws until the rotation center of the product coincides with the axis of the automatic centering three-jaw chuck of the machine tool; it is convenient to operate, can adjust the clamping center of the part, and ensure the machining quality of the product. Brief Description of the Drawings

[0010] Figure 1This is the front view of the present utility model.

[0011] Figure 2 This is the sectional view of the present utility model.

[0012] Figure 3 This is the three-dimensional view of the fixture body of the present utility model.

[0013] Figure 4 This is the structural diagram when the present utility model is in use. Detailed implementation manners

[0014] The present utility model will be further described below with reference to the accompanying drawings.

[0015] As Figures 1-3 shown, the present utility model includes a fixture body 1, four sets of set screws 2 and four pressing strips 3. The fixture body 1 includes a connecting portion 11 and a clamping portion 12. The connecting portion 11 is a circular tube structure (which can also be a cylindrical structure); the clamping portion 12 is a cylindrical tube structure. The connecting portion 11 and the clamping portion 12 are coaxial. Four sets of threaded holes 14 are provided on the side wall of the clamping portion 12. Each set of threaded holes 14 is arranged on the same generatrix of the clamping portion, and the four sets of threaded holes are evenly arranged in the circumferential direction. A set screw 2 is respectively arranged in each threaded hole 14. A pressing strip groove 13 is provided on the inner side wall of the clamping portion 12 corresponding to each set of threaded holes, and a pressing strip 3 is respectively arranged in each pressing strip groove.

[0016] As Figure 4 shown, when the present utility model is in use, by using the datum transformation method, the automatic centering three-jaw chuck 4 of a numerically controlled lathe or a turning and milling machining center clamps the connecting portion 11 of the present utility model, the product 5 is installed in the clamping portion 12 of the present utility model, and then the non-machined surface of the product is clamped by the set screws 2 and the pressing strips 3 of the present utility model. The two symmetric set screws 2 are respectively adjusted to shift the rotation center of the product until the rotation center of the product coincides with the axis of the automatic centering three-jaw chuck of the machine tool. The operation is convenient, the clamping center of the part can be adjusted, and the machining quality of the product can be guaranteed.

Claims

1. A lathe auxiliary tool capable of adjusting the center of a part, characterized by: It comprises a clamping body and four sets of set screws; the clamping body comprises a connecting part and a clamping part, the connecting part is a cylindrical structure or a round tube structure; the clamping part is a cylindrical structure; the connecting part is coaxial with the clamping part, and four sets of threaded holes are arranged on the side wall of the clamping part, each set of threaded holes is arranged on the same busbar of the clamping part, and a set screw is respectively arranged in each threaded hole.

2. The lathe auxiliary tool capable of adjusting the center of a part according to claim 1 is characterized in that: It also includes four clamping strips, which are respectively located at the inner ends of the four groups of set screws.

3. The lathe auxiliary tool capable of adjusting the center of a part according to claim 1 is characterized in that: The four groups of threaded holes are evenly arranged along the circumferential direction.

4. The lathe auxiliary tool capable of adjusting the center of a part according to claim 2 is characterized in that: A clamping strip groove is provided on the inner side wall of the clamping part corresponding to each group of threaded holes, and the clamping strip is placed in the clamping strip groove.

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