Tool clamp for machining square inner hole of blind hole square plate

Abstract

The utility model belongs to the field of work fixtures, and particularly discloses a work fixture for machining a square inner hole of a blind hole square plate, which comprises a fixture body and a square plate, a base is arranged at the lower end of the fixture body, a positioning table is arranged on the upper end face of the base, and a positioning key is arranged on the side wall of the positioning table; a detection column for mounting a detection device is arranged on the side of the positioning table; the square plate comprises a mounting shaft, a convex ring and a threaded shaft; the mounting shaft is positioned on the lower end surface of the convex ring; a circular groove A is formed in the center of the lower end face of the mounting shaft, and a key groove is formed in the side wall of the groove A; a circular groove B is formed in the center of the upper end face of the square plate, a square inner hole is formed in the bottom face of the groove B, and the square inner hole is communicated with the groove A of the mounting shaft; the mounting shaft is inserted into the positioning key of the positioning table through the key slot; the clamp is simple in structure and convenient to install, the blind hole square plate can be rapidly installed, and a square inner hole can be conveniently machined; the upper end of the clamp is provided with a detection column used for detecting whether the workpiece is qualified.

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 square inner hole of a blind hole square plate. Background Technology

[0002] Blind hole square plate is a commonly used workpiece. The center hole of the blind hole square plate has a square inner hole. The side wall of the square inner hole and the keyway at the lower end of the blind hole square plate have a certain angle. When the angle is too large, the blind hole square plate cannot be installed.

[0003] During the machining of blind hole square plates, the cutting tool generates a downward force, which can easily cause the blind hole square plate to tilt, resulting in unqualified parts after machining. In the existing technology, pin holes are often used for positioning, and then clamping is used for fixation; however, the clamping process takes a long time and the machining efficiency is low. There is an urgent need for a method that can solve this problem. Utility Model Content

[0004] To address the problems existing in the background art, this utility model provides a tooling fixture for machining the square inner hole of a blind hole square plate.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a tooling fixture for machining the square inner hole of a blind hole square plate, comprising a fixture body and a square plate, wherein the lower end of the fixture body is provided with a base, the upper end surface of the base is provided with a positioning platform, and the side wall of the positioning platform is provided with a positioning key; a detection column for mounting a detection device is provided on the side of the positioning platform; the square plate includes a mounting shaft, a convex ring, and a threaded shaft; the mounting shaft is located on the lower end surface of the convex ring, and the threaded shaft is located on the upper end surface of the convex ring, the mounting shaft, the convex ring, and the threaded shaft are coaxial; a circular groove A is provided at the center of the lower end surface of the mounting shaft, and a keyway is provided on the side wall of the groove A; a circular groove B is provided at the center of the upper end surface of the threaded shaft, and a square inner hole is provided on the bottom surface of the groove B, the square inner hole communicating with the groove A of the mounting shaft; the mounting shaft is inserted into the positioning key of the positioning platform through the keyway.

[0006] The positioning platform is a circular boss, and the outer diameter of the positioning platform is adapted to the inner diameter of the groove A. A planar notch is provided on one side of the positioning platform, and the positioning key is located in the middle of the planar notch.

[0007] The height of the positioning platform is less than the depth of the groove A for mounting the shaft.

[0008] The positioning key is adapted to the keyway.

[0009] The beneficial effects of this utility model are as follows: This utility model provides a tooling fixture for machining the square inner hole of a blind hole square plate. The fixture has a simple structure, is easy to install, and can quickly install the blind hole square plate to facilitate machining the square inner hole. The upper end of the fixture is provided with a detection column to facilitate the detection of whether the machined workpiece is qualified. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of this utility model.

[0011] Figure 2 This is a schematic diagram of the clamping device.

[0012] Figure 3 This is a schematic diagram of a square plate.

[0013] Figure 4 This is a schematic diagram of a square plate.

[0014] Figure 5 This is a top view of the square plate.

[0015] In the diagram: 1. Clamp body, 2. Square plate, 11. Base, 12. Positioning platform, 13. Positioning key, 14. Detection column, 21. Mounting shaft, 22. Convex ring, 23. Threaded shaft, 24. Keyway, 25. Snap ring, 26. Square inner hole. 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 detailed description of the specific embodiments of this utility model, in conjunction with the accompanying drawings, illustrates the following: A tooling fixture for machining the square inner hole of a blind hole square plate includes a fixture body 1 and a square plate 2. The fixture body 1 has a base 11 at its lower end, and a positioning platform 12 is provided on the upper surface of the base 11. A positioning key 13 is provided on the side wall of the positioning platform 12. The positioning platform 12 is a circular boss, and its outer diameter is adapted to the inner diameter of the groove A. A planar notch is provided on one side of the positioning platform 12, and the positioning key 13 is located in the middle of the planar notch. The height of the positioning platform 12 is less than the height of the mounting shaft 21. The depth of groove A; when the square plate 2 is installed on the fixture 1, the lower end face of the square plate 2 contacts the upper end face of the base 11, making the square plate 2 more stable; at the same time, when machining the square inner hole 26 of the square plate 2, the tool will pass through the bottom surface of the groove B and enter the groove A. If the positioning table 12 is too high, it will interfere with the tool; the side of the positioning table 12 is provided with a detection column 14 for installing the detection device; after the square plate 2 is machined, in order to facilitate the detection of the form and position tolerance of the square inner hole 26, a special detection fixture can be fitted on the detection column 14 to quickly detect whether the square inner hole 26 is qualified;

[0018] The square disc 2 includes a mounting shaft 21, a convex ring 22, and a threaded shaft 23. The mounting shaft 21 is located on the lower end face of the convex ring 22, and the threaded shaft 23 is located on the upper end face of the convex ring 22. The mounting shaft 21, the convex ring 22, and the threaded shaft 23 are coaxial. A circular groove A is provided at the center of the lower end face of the mounting shaft 21, and a keyway 24 is provided on the side wall of the groove A. The positioning key 13 is adapted to the keyway 24. When the square disc 2 is installed on the fixture 1, the keyway 24 is engaged with the positioning key 13 to prevent the square disc 2 from rotating during processing and affecting the shape and position error of the square inner hole 26. A retaining ring 25 is provided on the outer side wall of the mounting shaft 21 for connecting with other parts. A circular groove B is provided at the center of the upper end face of the threaded shaft 23, and a square inner hole 26 is provided on the bottom surface of the groove B. The square inner hole 26 is connected to the groove A of the mounting shaft 21. The mounting shaft 21 is inserted into the positioning key 13 of the positioning table 12 through the keyway 24.

[0019] The usage process of this utility model is as follows: First, install the base 11 at the lower end of the fixture 1 on the worktable of the machine tool; then install the unprocessed square plate 2 on the positioning table 12 of the fixture 1; during installation, the mounting shaft 21 of the square plate 2 is sleeved on the positioning table 12, so that the keyway 24 is locked on the positioning key 13 to prevent the square plate 2 from rotating during processing; after installation, start the equipment to process the square inner hole 26 of the square plate 2; after processing, install the special testing equipment on the testing column 14 for testing; when the square plate 2 passes the test, remove the processed square plate 2. If further processing is required, the above steps can be repeated; if processing is complete, the fixture can be removed and waited for the next use.

[0020] 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.

[0021] The parts of this utility model not described in detail are existing technologies.

Claims

1. A tooling fixture for machining the square inner hole of a blind hole square plate, comprising a fixture body (1) and a square plate (2), characterized in that: The clamping body (1) has a base (11) at its lower end, and a positioning platform (12) is provided on the upper surface of the base (11). A positioning key (13) is provided on the side wall of the positioning platform (12). A detection column (14) for installing a detection device is provided on the side of the positioning platform (12). The square plate (2) includes a mounting shaft (21), a convex ring (22), and a threaded shaft (23). The mounting shaft (21) is located on the lower surface of the convex ring (22), and the threaded shaft (23) is located on the upper surface of the convex ring (22). The mounting shaft (21), the convex ring (22), and the threaded shaft (23) are coaxial; the lower end face of the mounting shaft (21) is provided with a circular groove A, and the side wall of the groove A is provided with a keyway (24); the upper end face of the threaded shaft (23) is provided with a circular groove B, and the bottom surface of the groove B is provided with a square inner hole (26), which is connected to the groove A of the mounting shaft (21); the mounting shaft (21) is inserted into the positioning key (13) of the positioning table (12) through the keyway (24).

2. The tooling fixture for machining the square inner hole of a blind hole square plate according to claim 1, characterized in that: The positioning platform (12) is a circular boss. The outer diameter of the positioning platform (12) is adapted to the inner diameter of the groove A. A planar notch is provided on one side of the positioning platform (12), and the positioning key (13) is located in the middle of the planar notch.

3. The tooling fixture for machining the square inner hole of a blind hole square plate according to claim 1, characterized in that: The height of the positioning platform (12) is less than the depth of the groove A of the mounting shaft (21).

4. The tooling fixture for machining the square inner hole of a blind hole square plate according to claim 1, characterized in that: The positioning key (13) is adapted to the keyway (24).

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