A tooling fixture for machining a square disc shaft end

Abstract

The utility model belongs to the field of tool fixture, specifically disclose a kind of tool fixture for processing square tray axle end, including square tray and clamping body, the square tray including first axle, square plate and second axle;The central hole in the square tray middle part is equipped with positioning groove and clamping groove on the inner wall of first axle end center hole;The end face of square plate corresponding with positioning groove is locating surface A;The center of clamping body is equipped with first recess, and the side wall of first recess is locating surface B;The center of first recess is equipped with circular through-hole;One corner of first recess is equipped with opening slot;The square tray is installed on clamping body, and the second axle of square tray passes through through-hole, and the lower end surface of square plate is in contact with the bottom surface of first recess, and locating surface A is in contact with locating surface B;The clamping body is installed on machine tool, and is locked by chuck;This fixture simple structure, clamping is convenient, and general performance is high, can satisfy the end surface and hole processing of square tray.

Description

Technical Field

[0001] This utility model belongs to the field of tooling and fixtures, specifically relating to a tooling and fixture for machining the end of a square disc shaft. Background Technology

[0002] The square plate is an important connecting part. The center of the square plate is a square plate, which is not conducive to machine tool clamping. At the same time, after the square plate is processed, some workpieces will have certain dimensional defects, which require simple repair.

[0003] However, the inner hole of the square plate has a positioning groove and a retaining groove. The positional tolerance between the positioning groove and the retaining groove is high, making maintenance difficult. Even a slight deviation in the clamping position can easily cause the workpiece to be scrapped. In the existing technology, in order to ensure the accuracy of clamping, a dial indicator is required for positioning during clamping, which takes a long time and wastes manpower and resources. There is an urgent need for a method that can solve this problem. Utility Model Content

[0004] In view of the problems existing in the background art, the present invention provides a tooling fixture for machining the end of a square disc shaft.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a tooling fixture for machining the shaft end of a square disc, comprising a square disc and a fixture body. The square disc includes a first shaft, a square plate, and a second shaft. A central hole is provided in the center of the square disc, and a positioning groove and a chuck are provided on the inner wall of the central hole at the end of the first shaft. The end face of the square plate corresponding to the positioning groove is the positioning surface A. The fixture body is a disc, and a first groove is provided in the center of the fixture body. The first groove is a square groove, and one side wall of the first groove is the positioning surface B. A circular through hole is provided in the center of the first groove. An opening groove is provided at one corner of the first groove. The square disc is mounted on the fixture body, the second shaft of the square disc passes through the through hole, the lower end face of the square plate contacts the bottom surface of the first groove, and the positioning surface A contacts the positioning surface B. The fixture body is mounted on a machine tool and locked by a chuck.

[0006] The first groove is adapted to fit the square plate, and the depth of the first groove is less than the thickness of the square plate.

[0007] The diameter of the through hole is larger than the outer diameter of the second shaft.

[0008] The positioning surface B is away from the opening slot.

[0009] The clamp body has a positioning boss on its outer side wall, and the positioning boss is coaxial with the axis of symmetry of the positioning surface B.

[0010] The beneficial effects of this utility model are as follows: This utility model provides a tooling fixture for machining the end of a square disc shaft. The fixture has a simple structure, is easy to clamp, has high versatility, and can meet the machining requirements of the end face and inner hole of the square disc. Attached Figure Description

[0011] Figure 1 This is the front view of the present invention.

[0012] Figure 2 This is a schematic diagram of a square plate.

[0013] Figure 3 This is a schematic diagram of a square plate.

[0014] Figure 4 This is a schematic diagram of the clamping device.

[0015] In the figure: 1. Square plate, 2. Clamp body, 11. First shaft, 12. Square plate, 13. Second shaft, 14. Center hole, 15. Positioning groove, 16. Slot, 17. Positioning surface A, 21. First groove, 22. Through hole, 23. Opening groove, 24. Positioning surface B, 25. Positioning boss. Detailed Implementation

[0016] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0017] The following is in conjunction with the appendix Figure 1-4The specific embodiments of this utility model are further described in detail below: A tooling fixture for machining the end of a square disc shaft includes a square disc 1 and a fixture body 2. The square disc 1 includes a first shaft 11, a square plate 12, and a second shaft 13. A central hole 14 is provided in the middle of the square disc 1, and a positioning groove 15 and a slot 16 are provided on the inner wall of the central hole 14 at the end of the first shaft 11. The end face of the square plate 12 corresponding to the positioning groove 15 is a positioning surface A17. The fixture body 2 is a disc, and a first groove 21 is provided in the center of the fixture body 2. The groove 21 is a square groove, which is adapted to the square plate 12. The depth of the first groove 21 is less than the thickness of the square plate 12. One side wall of the first groove 21 is a positioning surface B24, which is far away from the opening groove 23. The outer side wall of the clamping body 2 is provided with a positioning boss 25, which is coaxial with the axis of symmetry of the positioning surface B24. In actual operation, the positioning groove 15 of the center hole of the square plate 1 is the reference groove, and the position of the slot 16 is positioned by the positioning groove 15. In actual use, in order to increase the flexibility of the clamping device... In terms of performance, this fixture is mainly used for machining the inner hole and outer circle of the square plate 1, and can also machine the positioning groove 15 and the locating groove 16; at the same time, when the inner hole or outer circle of the square plate 1 needs to be repaired due to incomplete machining, this fixture can also be used. In use, the positioning boss 25 is used to position the positioning groove 15 to prevent the square plate 1 from shifting during machining; the center of the first groove 21 is provided with a circular through hole 22, the diameter of which is larger than the outer diameter of the second shaft 13 to facilitate the passage of the second shaft 13; one corner of the first groove 21 is provided with an opening groove 23; the opening groove 23... The width of 3 varies depending on the size of the square plate 1. The opening slot 23 is designed to create a certain gap between the square plate 1 and the fixture 2 during installation, facilitating installation. Simultaneously, it also facilitates machine tool locking when the fixture 2 is mounted on the machine tool. The square plate 1 is mounted on the fixture 2, with its second shaft 13 passing through the through hole 22. The lower end face of the square plate 12 contacts the bottom surface of the first groove 21, and the positioning surface A17 contacts the positioning surface B24. The fixture 2 is mounted on the machine tool and locked by a chuck for machining.

[0018] The usage process of this utility model is as follows: When it is necessary to machine the outer circle or inner hole of the square plate 1 on a lathe, the fixture body 2 is installed on the chuck of the lathe; when the chuck is released, the opening slot 23 opens, and the first groove 21 is slightly larger than the square plate 12. At this time, the plate 1 is installed on the fixture body 2, the second shaft 13 of the square plate 1 passes through the through hole 22, the lower end face of the square plate 12 contacts the bottom surface of the first groove 21, and the positioning surface A17 contacts the positioning surface B24; after the square plate 1 is placed in, the chuck is locked. At this time, the square plate 1 is locked and the outer circle or inner hole can be machined; when it is necessary to machine the positioning groove 15 and the slot 16, the same method as above can be used to install the square plate 1 on the machining table of the milling machine or planer; when it is necessary to repair the square plate 1, the positioning groove 15 can be positioned by the positioning boss 25, and then the square plate 1 can be fixed by the above method to prevent the square plate 1 from shifting during machining.

[0019] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

[0020] The parts of this utility model not described in detail are existing technologies.

Claims

1. A tooling fixture for machining the end of a square disc shaft, comprising a square disc (1) and a fixture body (2), characterized in that: The square plate (1) includes a first shaft (11), a square plate (12), and a second shaft (13); the square plate (1) has a central hole (14) in the middle, and the inner wall of the central hole (14) at the end of the first shaft (11) has a positioning groove (15) and a slot (16); the end face of the square plate (12) corresponding to the positioning groove (15) is the positioning surface A (17); the clamping body (2) is a disc, and the center of the clamping body (2) has a first groove (21), which is a square groove. 1) One side wall is the positioning surface B (24); the center of the first groove (21) is provided with a circular through hole (22); one corner of the first groove (21) is provided with an opening groove (23); the square plate (1) is installed on the clamping body (2), the second shaft (13) of the square plate (1) passes through the through hole (22), the lower end face of the square plate (12) is in contact with the bottom surface of the first groove (21), and the positioning surface A (17) is in contact with the positioning surface B (24); the clamping body (2) is installed on the machine tool and locked by the chuck.

2. The tooling fixture for machining the end of a square disc shaft according to claim 1, characterized in that: The first groove (21) is adapted to the square plate (12), and the depth of the first groove (21) is less than the thickness of the square plate (12).

3. The tooling fixture for machining the end of a square disc shaft according to claim 1, characterized in that: The diameter of the through hole (22) is greater than the outer diameter of the second shaft (13).

4. The tooling fixture for machining the end of a square disc shaft according to claim 1, characterized in that: The positioning surface B (24) is away from the opening slot (23).

5. The tooling fixture for machining the end of a square disc shaft according to claim 1, characterized in that: The clamp body (2) is provided with a positioning boss (25) on the outer side wall, and the positioning boss (25) is coaxial with the axis of symmetry of the positioning surface B (24).

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