Device for realizing uniform indexing milling on limited workbench

Abstract

The utility model relates to the technical field of petroleum drilling tool processing, and discloses a device for realizing uniform indexing milling on a limited workbench, which comprises a plurality of support pieces, a plurality of milling devices, a plurality of milling devices, a plurality of milling devices, a plurality of milling devices and a plurality of milling devices, and is characterized in that the support pieces are arranged on the workbench of a machine tool at intervals along the same straight line; the positioning assembly comprises a support, the support is arranged on the workbench, a positioning pin parallel to the workbench is connected to the support, and the positioning pin is perpendicular to the arrangement direction of the supporting pieces; the clamp assembly comprises an indexing body, a centering piece, a locking sleeve and a semi-ring. The positioning device is simple in structure, convenient and rapid to install, accurate in positioning and capable of positioning the universal joint connecting rod, after one end of the connecting rod is milled, the other end of the connecting rod can be positioned and milled, the precision requirement of a hole milling procedure can be met, and the machining efficiency is improved. Therefore, the requirement for machining long-shaft workpieces on a small-shaft-distance machine tool is met, and the workpiece machining cost is greatly reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of petroleum drilling tool processing, in particular to a device for realizing uniform indexing milling with a limited workbench. Background Art

[0002] The screw drill universal joint connecting rod is a key part of the universal joint, which is used to connect the live hinges at both ends and combine with the transmission column to make the live hinge swing at a certain angle.

[0003] During the processing of the universal joint connecting rod, six ball sockets evenly distributed around its circumference need to be processed at both ends of the universal joint connecting rod; the connecting rod is a slender shaft workpiece, and the wheelbase of conventional low-power vertical machining centers is limited. There is a problem of insufficient equipment processing range, which cannot meet the requirements of the universal joint connecting rod milling ball socket process. When the universal joint connecting rod is processed by a large wheelbase machine tool, the processing economy is poor, which will increase the cost of part processing. Utility Model Content

[0004] In view of this, the purpose of the present invention is to provide a device for realizing uniform indexing milling with a limited worktable, so as to solve the problems pointed out in the above background technology.

[0005] In order to achieve the above utility model purpose, the technical solution adopted is as follows:

[0006] A device for realizing uniform indexing milling with a limited worktable, used for realizing the milling process of a universal joint connecting rod under the condition of limited wheelbase of a machine tool, comprising:

[0007] A support member, wherein a plurality of the support members are provided, and the plurality of the support members are arranged on a working table of the machine tool at intervals along the same straight line;

[0008] A positioning assembly, the positioning assembly comprising a bracket, the bracket being arranged on a workbench, the bracket being connected with a positioning pin parallel to the workbench, and the positioning pin being perpendicular to the arrangement direction of the support member;

[0009] A clamp assembly, the clamp assembly includes a dividing body, a centering piece, a locking sleeve and a half ring, the dividing body is a cylindrical structure, a plurality of positioning holes arranged in a circumferential ring array around the dividing body are opened on the side surface close to one end of the dividing body, the positioning holes are used for the insertion of the positioning pin, a blind hole is coaxially opened on the other end of the dividing body, a centering hole is coaxially opened on the bottom surface of the blind hole, the centering piece is embedded in the centering hole, and an internal thread is arranged on the inner wall of the blind hole, the locking sleeve is an annular structure, an external thread matching the internal thread is arranged on the circumferential surface of the locking sleeve, and a step surface is arranged in the inner hole of the locking sleeve, and two semi-rings are arranged, and the circumferential surfaces of the two semi-rings are in contact with the inner wall of the inner hole of the locking sleeve and abut against the step surface.

[0010] As a further improvement of the present invention, a plurality of groups of positioning holes are arranged on the side surface of the dividing body, and the plurality of groups of positioning holes are arranged at intervals along the length direction of the dividing body.

[0011] As a further improvement of the present invention, the number of positioning holes in each group of positioning holes is different.

[0012] As a further improvement of the utility model, the centering piece includes a connecting part and a centering part, the connecting part is a cylindrical structure matching the centering hole, the centering part is also a cylindrical structure, the centering part is coaxially connected to one end of the connecting part, and a centering head is coaxially arranged at one end of the centering part away from the connecting part.

[0013] As a further improvement of the utility model, the inner hole of the locking sleeve is a stepped hole, including a first section and a second section, and the diameter of the first section is smaller than the diameter of the second section, the first section and the second section directly form the step surface, and when the locking sleeve is screwed onto the dividing body, the first section is located on the side close to the centering hole.

[0014] As a further improvement of the present invention, the support member is a V-shaped iron.

[0015] The beneficial effects of the utility model are as follows: the utility model has a simple structure, is easy and quick to install, and has accurate positioning. It can position the universal joint connecting rod. After the milling process of one end of the connecting rod is completed by using the utility model, the other end of the connecting rod can be positioned and milled, and the precision requirements of the milling process can be met, thereby realizing the need to process long-axis workpieces on a small wheelbase machine tool, greatly reducing the cost of workpiece processing. It can realize the completion of indexing processing when the indexing head cannot be set on a limited workbench, saving space occupation and energy, and improving the production efficiency of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0018] Figure 2 It is a schematic diagram of the second viewing angle of the three-dimensional structure of the utility model;

[0019] Figure 3 It is a partial cross-sectional view of the utility model;

[0020] Figure 4 It is a partial structural schematic diagram of the utility model;

[0021] Figure 5 for Figure 4 Enlarged view of the structure of section A.

[0022] In the figure: 1. support member; 2. positioning assembly; 21. bracket; 22. positioning pin; 3. clamp assembly; 31. dividing body; 32. centering member; 321. connecting part; 322. centering part; 323. centering head; 33. locking sleeve; 34. half ring; 35. positioning hole; 36. blind hole; 37. centering hole; 38. step surface; 4. universal joint connecting rod. DETAILED DESCRIPTION

[0023] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0024] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0025] like Figure 1-5 As shown, a device for realizing uniform indexing milling with a limited worktable is used to realize the milling process of the universal joint connecting rod 4 under the condition of limited wheelbase of the machine tool, comprising:

[0026] A support member 1, wherein a plurality of the support members 1 are provided, and the plurality of the support members 1 are arranged on a working table of the machine tool at intervals along the same straight line;

[0027] A positioning assembly 2, the positioning assembly 2 comprising a bracket 21, the bracket 21 being disposed on a workbench, the bracket 21 being connected with a positioning pin 22 parallel to the workbench, and the positioning pin 22 being perpendicular to the arrangement direction of the support member 1;

[0028] The clamp assembly 3 includes a dividing body 31, a centering piece 32, a locking sleeve 33 and a half ring 34. The dividing body 31 is a cylindrical structure. A plurality of positioning holes 35 arranged in a circumferential annular array are provided on the side surface close to one end of the dividing body 31. The positioning holes 35 are used for the positioning pin 22 to be inserted. A blind hole 36 is coaxially provided at the other end of the dividing body 31. A centering hole 37 is coaxially provided on the bottom surface of the blind hole 36. The centering piece 32 is embedded in the centering hole 37, and the inner wall of the blind hole 36 is provided with an internal thread. The locking sleeve 33 is an annular structure, and the circumferential surface of the locking sleeve 33 is provided with an external thread matching the internal thread, and the inner hole of the locking sleeve 33 is provided with a step surface 38. There are two half rings 34, and the circumferential surfaces of the two half rings 34 are in contact with the inner wall of the inner hole of the locking sleeve 33 and abut against the step surface 38.

[0029] A plurality of groups of positioning holes 35 are disposed on the side surface of the dividing body 31 , and the plurality of groups of positioning holes 35 are spaced apart along the length direction of the dividing body 31 .

[0030] The number of positioning holes 35 in each group of positioning holes 35 is different.

[0031] The centering piece 32 includes a connecting portion 321 and a centering portion 322. The connecting portion 321 is a cylindrical structure matching the centering hole 37. The centering portion 322 is also a cylindrical structure. The centering portion 322 is coaxially connected to one end of the connecting portion 321, and a centering head 323 is coaxially provided at one end of the centering portion 322 away from the connecting portion 321.

[0032] The inner hole of the locking sleeve 33 is a stepped hole, including a first section and a second section, and the diameter of the first section is smaller than the diameter of the second section. The first section and the second section directly form the stepped surface 38, and when the locking sleeve 33 is screwed onto the dividing body 31, the first section is located on the side close to the centering hole 37.

[0033] The support member 1 is a V-shaped iron.

[0034] Working principle: The centering piece 32 is fitted into the centering hole 37 of the dividing body 31, and the locking sleeve 33 is inserted into the end of the universal joint connecting rod 4. Then, the two half rings 34 are fit into the annular gap formed between the universal joint connecting rod 4 and the inner hole of the locking sleeve 33, and one end surface of the two half rings 34 is fit with the step surface 38 of the inner hole of the locking sleeve 33, and the locking sleeve 33 is pushed to move toward the step of the universal joint connecting rod 4 (there is a step near the end of the universal joint connecting rod 4, and the step surface 38 here is the connecting rod step surface 38), and finally the other end surfaces of the two inner rings are fit with the connecting rod step surface 38 is abutted, and then the centering piece 32 is put on the end head of the universal joint connecting rod 4, and the center hole on the end head of the universal joint connecting rod 4 is matched with the positioning piece to achieve positioning, and then the locking sleeve 33 is screwed to the dividing body 31. At this time, due to the limiting effect of the semi-ring 34 and the step surface 38 of the locking sleeve 33, the universal joint connecting rod 4 and the dividing body 31 are tightly connected together; then the universal joint connecting rod 4 is placed on the bearing station composed of the support member 1, and the positioning of the universal joint connecting rod 4 can be achieved through the positioning pin 22 and the positioning hole 35 on the side of the dividing body 31, thereby completing the ball socket milling process.

[0035] The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. For those skilled in the art, the utility model may have various modifications and variations. Any modification, equivalent replacement, improvement, component splitting or combination, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A device for realizing uniform indexing milling with a limited worktable, characterized in that: include: A support member, wherein a plurality of the support members are provided, and the plurality of the support members are arranged on a working table of the machine tool at intervals along the same straight line; A positioning assembly, the positioning assembly comprising a bracket, the bracket being arranged on a workbench, the bracket being connected with a positioning pin parallel to the workbench, and the positioning pin being perpendicular to the arrangement direction of the support member; A clamp assembly, the clamp assembly includes a dividing body, a centering piece, a locking sleeve and a half ring, the dividing body is a cylindrical structure, a plurality of positioning holes arranged in a circumferential ring array around the dividing body are opened on the side surface close to one end of the dividing body, the positioning holes are used for the insertion of the positioning pin, a blind hole is coaxially opened on the other end of the dividing body, a centering hole is coaxially opened on the bottom surface of the blind hole, the centering piece is embedded in the centering hole, and an internal thread is arranged on the inner wall of the blind hole, the locking sleeve is an annular structure, an external thread matching the internal thread is arranged on the circumferential surface of the locking sleeve, and a step surface is arranged in the inner hole of the locking sleeve, and two semi-rings are arranged, and the circumferential surfaces of the two semi-rings are in contact with the inner wall of the inner hole of the locking sleeve and abut against the step surface.

2. The device for realizing uniform indexing milling with a limited worktable according to claim 1, characterized in that: A plurality of groups of positioning holes are arranged on the side surface of the dividing body, and the plurality of groups of positioning holes are arranged at intervals along the length direction of the dividing body.

3. The device for realizing uniform indexing milling with a limited worktable according to claim 2, characterized in that: The number of positioning holes in each group of positioning holes is different.

4. The device for realizing uniform indexing milling with a limited worktable according to claim 1, characterized in that: The centering piece includes a connecting part and a centering part. The connecting part is a cylindrical structure matching the centering hole. The centering part is also a cylindrical structure. The centering part is coaxially connected to one end of the connecting part, and a centering head is coaxially arranged at one end of the centering part away from the connecting part.

5. The device for realizing uniform indexing milling with a limited worktable according to claim 1, characterized in that: The inner hole of the locking sleeve is a stepped hole, including a first section and a second section, and the diameter of the first section is smaller than the diameter of the second section. The first section and the second section directly form the stepped surface, and when the locking sleeve is screwed onto the dividing body, the first section is located on the side close to the centering hole.

6. The device for realizing uniform indexing milling with a limited worktable according to claim 1, characterized in that: The supporting member is a V-shaped iron.

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