Machine tool clamp

Abstract

The utility model discloses a machine tool clamp, which relates to the technical field of part processing and clamping, and comprises a box body, a servo motor is arranged at the bottom of the box body, a disc connected with the driving end of the servo motor is arranged in the box body, inserting rods are inserted into the front side, the rear side, the left side and the right side of the box body, and a limiting cylinder is arranged at one end of each inserting rod. The top of the box body and the top of the disc are each provided with an arc-shaped through groove matched with the corresponding limiting cylinder. According to the clamping device, the servo motor is started to drive the disc to rotate, and the four clamping columns get close to or away from one another by utilizing the limiting effect of the inserting rods and the arc-shaped through grooves on the limiting columns, so that annular workpieces with different inner diameters can be conveniently clamped; the problem that an existing machine tool clamp inconveniently clamps an annular workpiece through the inner diameter of the annular workpiece is solved, and therefore the problem that the outer diameter of the annular workpiece is inconveniently machined due to the fact that only the outer diameter of the annular workpiece can be clamped is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of parts processing and clamping, and specifically relates to a machine tool clamp. Background Art

[0002] Machine tools are one of the basic processing tools in modern mechanical processing. They can process a variety of parts through the cooperation of turning tools and chucks. Fixtures refer to the tools used to fix workpieces in the mechanical manufacturing process so that the workpieces have the correct position. Among the many types of fixtures, machine tool fixtures are the most common. They can ensure high processing accuracy and work efficiency, and play a vital role in the mechanical processing industry. However, the existing machine tool fixtures are not convenient for clamping circular workpieces by the inner diameter during use.

[0003] A Chinese patent with publication (announcement) number CN216178656U discloses a machine tool fixture, comprising a base, a plurality of clamping blocks slidably arranged on the base, and a same clamping ring abutting against the plurality of clamping blocks, wherein the movement directions of the plurality of clamping blocks are evenly distributed radially, a side of the clamping block close to the radial center is provided with a stepped groove for placing a workpiece, a side of the clamping block away from the radial center is provided with an inclined surface, a reverse inclined surface in contact with the inclined surface is provided on the clamping ring, the clamping ring is connected with an axial clamping structure, and the axially moving clamping ring can push the plurality of clamping blocks to move centripetally to clamp the workpiece; the movement directions of the plurality of clamping blocks are evenly distributed radially, and the plurality of clamping blocks abut against the same clamping ring, the movement of one clamping ring can ensure the synchronous movement of the plurality of clamping blocks, the installation and adjustment of the fixture are relatively convenient and quick, and can further ensure the processing quality. During use, the machine tool fixture is not convenient to clamp the circular workpiece by its inner diameter, and it is difficult to choose to clamp the inner diameter or outer diameter of the circular workpiece according to subsequent processing requirements. It is easy for the clamping part to be unable to be processed and it is difficult to meet subsequent different processing requirements. Therefore, there are great limitations during use.

[0004] In view of this, this application is hereby filed. Utility Model Content

[0005] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a machine tool clamp to facilitate the selection of the inner diameter or outer diameter of the circular workpiece for clamping according to subsequent processing requirements to meet the purpose of subsequent different processing requirements.

[0006] In order to solve the above technical problems, the utility model provides a machine tool clamp, including a box body, a servo motor is arranged at the bottom of the box body, a disc connected to the driving end of the servo motor is arranged inside the box body, and plug rods are inserted into the front, rear, left and right sides of the box body, and a limiting cylinder is installed at one end of the plug rod. The tops of the box body and the disc are provided with arc-shaped through grooves matched with the limiting cylinder, the top of the limiting cylinder is provided with a clamping column, the top of the limiting cylinder is provided with a threaded hole, the inner wall of the threaded hole is threadedly connected with a screw rod, and the top of the screw rod is connected to the bottom end of the clamping column.

[0007] Furthermore, a clamping rod is provided at the other end of the insertion rod, a sliding rod connected to the insertion rod is installed on one side of the clamping rod, a limiting rod is inserted at the top of the insertion rod, a connecting block is installed at the top of the limiting rod, a tension spring sleeved on the outside of the limiting rod is installed between the connecting block and the insertion rod, a plurality of equally spaced positioning holes are opened on the top of the sliding rod, and the tension spring in the initial state enables the connecting block to insert the limiting rod into one of the positioning holes.

[0008] Furthermore, a protective shell is installed at the bottom of the box, the servo motor is installed inside the protective shell, a fixing seat is installed on the inner wall of the protective shell, the servo motor is installed on one side of the fixing seat, a heat dissipation port is opened at the bottom of the protective shell, and a dust filter is installed on the inner wall of the heat dissipation port.

[0009] Furthermore, an anti-skid pad is installed on one side of the clamp rod, and an anti-skid cover is installed on the outer wall of the clamp column. The anti-skid pad and the anti-skid cover are both made of rubber, and the outer surfaces of the anti-skid pad and the anti-skid cover are integrally formed with anti-skid particles.

[0010] Furthermore, a pull ring is installed on the outer surface of the connecting block, and the screw rod is made of stainless steel.

[0011] Furthermore, the bottom of the box body is equipped with supporting legs, the number of the supporting legs is four, and the four supporting legs are respectively located at the four corners of the bottom of the box body.

[0012] After adopting the above technical scheme, the utility model has the following beneficial effects compared with the prior art.

[0013] 1. In the utility model, the servo motor is started to drive the disc to rotate, and the limiting effect of the insert rod and the arc-shaped through groove on the limiting cylinder is utilized, so that the four clamping columns are moved closer to or farther away from each other, thereby facilitating the clamping of circular workpieces with different inner diameters, thereby solving the problem that the existing machine tool clamps are inconvenient to clamp the circular workpiece through its inner diameter, thereby avoiding the problem that only the outer diameter of the circular workpiece can be clamped and it is inconvenient to process the outer diameter of the circular workpiece.

[0014] 2. In the utility model, the servo motor is started to drive the disc to rotate, and the limiting effect of the insert rod and the arc-shaped through groove on the limiting cylinder is utilized, so that the four clamping rods are moved closer to or farther away from each other, thereby facilitating the clamping of circular workpieces with different outer diameters for subsequent inner diameter processing, and the connecting block is pulled to make the limiting rod away from one of the positioning holes, and the elastic reset principle of the tension spring is utilized to facilitate the installation and removal of the clamping rod, and the problem of the circular workpiece being large and inconvenient to clamp by the inner diameter of the circular workpiece is avoided after disassembly, and the installation and removal of the clamping column is facilitated by the coordinated use of the threaded hole and the screw rod, and the problem of the circular workpiece being unable to be clamped by the outer diameter of the circular workpiece due to its small inner diameter is avoided, so it is convenient to choose to clamp the inner diameter or outer diameter of the circular workpiece according to subsequent processing requirements to meet subsequent different processing requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an improper limitation on the present invention. Obviously, the accompanying drawings described below are only some embodiments. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without creative work. In the accompanying drawings:

[0016] Figure 1 This is a schematic diagram of the overall structure of a machine tool fixture of the utility model;

[0017] Figure 2 This is a schematic diagram of the cross-sectional structure of a box in a machine tool fixture of the utility model;

[0018] Figure 3 This is a schematic diagram of the connection structure between the insert rod and the clamp rod in a machine tool fixture of the utility model;

[0019] Figure 4 This is a schematic diagram of the cross-sectional structure of a protective shell in a machine tool fixture of the utility model;

[0020] Figure 5 for Figure 1 A magnified view of the structure at center.

[0021] Numbers in the figure:

[0022] 1. Box; 2. Servo motor; 3. Disc; 4. Insert rod; 5. Clamp rod; 6. Limiting cylinder; 7. Arc-shaped through groove; 8. Clamp column; 9. Threaded hole; 10. Screw rod; 11. Sliding rod; 12. Limiting rod; 13. Connecting block; 14. Tension spring; 15. Positioning hole; 16. Protective shell; 17. Fixed seat; 18. Anti-slip pad; 19. Anti-slip cover; 20. Pull ring; 21. Leg; 22. Heat dissipation port.

[0023] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. The following embodiments are used to illustrate the utility model but are not used to limit the scope of the utility model.

[0025] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0026] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] During use, the existing machine tool fixture is not convenient for clamping the annular workpiece through its inner diameter.

[0028] Depend on Figure 1-5 The utility model provides a machine tool fixture.

[0029] Specifically, by Figure 1 , 2 4 is given, including a box body 1, a servo motor 2 is arranged at the bottom of the box body 1, a disc 3 connected to the driving end of the servo motor 2 is arranged inside the box body 1, and a plug rod 4 is inserted on the front side, rear side, left side and right side of the box body 1, and a limiting cylinder 6 is installed at one end of the plug rod 4. The top of the box body 1 and the disc 3 are provided with an arc-shaped through groove 7 adapted to the limiting cylinder 6, and the top of the limiting cylinder 6 is provided with a clamping column 8. The top of the limiting cylinder 6 is provided with a threaded hole 9, and the inner wall of the threaded hole 9 is threadedly connected with a screw rod 10, and the top of the screw rod 10 is connected to the bottom end of the clamping column 8.

[0030] In the utility model, the servo motor 2 is started to drive the disc 3 to rotate, and the limiting effect of the insert rod 4 and the arc-shaped through groove 7 on the limiting cylinder 6 is utilized, so that the four clamping columns 8 are moved closer to or farther away from each other, thereby facilitating the clamping of circular workpieces with different inner diameters, thereby solving the problem that the existing machine tool clamps are inconvenient to clamp the circular workpiece through its inner diameter, thereby avoiding the problem that only the outer diameter of the circular workpiece can be clamped but it is inconvenient to process the outer diameter of the circular workpiece.

[0031] Furthermore, as a specific implementation of the utility model, the utility model provides a machine tool fixture.

[0032] Specifically, by Figure 3 and 5 It is given that a clamping rod 5 is provided at the other end of the insertion rod 4, and a sliding rod 11 connected with the insertion rod 4 is installed on one side of the clamping rod 5. A limiting rod 12 is inserted at the top of the insertion rod 4, and a connecting block 13 is installed at the top of the limiting rod 12. A tension spring 14 is installed between the connecting block 13 and the insertion rod 4 and is sleeved on the outside of the limiting rod 12. A plurality of equally spaced positioning holes 15 are opened on the top of the sliding rod 11. The tension spring 14 in the initial state enables the connecting block 13 to insert the limiting rod 12 into one of the positioning holes 15.

[0033] In the utility model, the servo motor 2 is started to drive the disc 3 to rotate, and the limiting effect of the insert rod 4 and the arc-shaped through groove 7 on the limiting cylinder 6 is utilized to make the four clamping rods 5 approach or move away from each other, thereby facilitating the clamping of circular workpieces with different outer diameters for subsequent inner diameter processing, and the connecting block 13 is pulled to make the limiting rod 12 move away from one of the positioning holes 15, and the elastic reset principle of the tension spring 14 is utilized to facilitate the installation and removal of the clamping rod 5, and the problem that the circular workpiece is large and inconvenient to clamp it through the inner diameter of the circular workpiece is avoided after disassembly, and the installation and removal of the clamping column 8 is facilitated by the coordinated use of the threaded hole 9 and the screw rod 10, and the problem that the inner diameter of the circular workpiece is small and it is impossible to clamp it through the outer diameter of the circular workpiece is avoided, so it is convenient to choose to clamp the inner diameter or outer diameter of the circular workpiece according to the subsequent processing requirements to meet the subsequent different processing requirements.

[0034] Furthermore, as a specific implementation of the utility model, the utility model provides a machine tool fixture.

[0035] Specifically, by Figure 2 and 4 It is shown that a protective shell 16 is installed at the bottom of the box body 1, the servo motor 2 is installed inside the protective shell 16, a fixing seat 17 is installed on the inner wall of the protective shell 16, the servo motor 2 is installed on one side of the fixing seat 17, a heat dissipation port 22 is opened at the bottom of the protective shell 16, and a dust filter is installed on the inner wall of the heat dissipation port 22.

[0036] In the utility model, the protective shell 16 is provided to protect the servo motor 2. The fixing seat 17 is provided to facilitate the installation of the servo motor 2 and make the operation of the servo motor 2 more stable. The heat dissipation port 22 is provided to facilitate the heat dissipation of the servo motor 2 in the protective shell 16 during operation. The dust-proof filter is provided to prevent dust from spreading during the heat dissipation of the servo motor 2, thereby extending the service life of the servo motor 2.

[0037] Furthermore, as a specific implementation of the utility model, the utility model provides a machine tool fixture.

[0038] Specifically, by Figure 1 and 3 It is shown that an anti-skid pad 18 is installed on one side of the clamp rod 5, and an anti-skid cover 19 is installed on the outer wall of the clamp column 8. The anti-skid pad 18 and the anti-skid cover 19 are both made of rubber, and the outer surfaces of the anti-skid pad 18 and the anti-skid cover 19 are integrally formed with anti-skid particles.

[0039] In the utility model, the rubber material has good wear resistance, elasticity, flexibility and tear resistance, can withstand a variety of acids, alkalis and chemical reagents, has insulating properties, can prevent electric shock and leakage, is not easy to absorb water, is not water-permeable, has good waterproof performance, is easy to process and shape, and can be made into various complex shapes and structures. By arranging an anti-slip pad 18 and an anti-slip sleeve 19 with anti-slip particles and made of rubber material, the friction between the circular workpiece and the clamping rod 5 and the clamping column 8 is increased, thereby ensuring that the circular workpiece is clamped more stably.

[0040] Furthermore, as a specific implementation of the utility model, the utility model provides a machine tool fixture.

[0041] Specifically, by Figure 3 and 5 It is shown that a pull ring 20 is installed on the outer surface of the connecting block 13, and the material of the screw rod 10 is stainless steel.

[0042] In the utility model, by setting the pull ring 20, it is convenient for people to manually pull the connecting block 13, so as to quickly move the limit rod 12 away from one of the positioning holes 15. Stainless steel has strong corrosion resistance, high hardness and high strength, thereby extending the service life of the screw rod 10.

[0043] Furthermore, as a specific implementation of the utility model, the utility model provides a machine tool fixture.

[0044] Specifically, by Figure 1 It is shown that the bottom of the box body 1 is installed with four legs 21 , and the four legs 21 are respectively located at the four corners of the bottom of the box body 1 .

[0045] In the present invention, by providing four legs 21, the height of the box body 1 is increased, which is convenient for the operation of relevant staff and avoids the contact between the protective shell 16 and the ground.

[0046] Working principle:

[0047] When it is convenient to clamp a circular workpiece by its inner diameter:

[0048] The servo motor 2 is started to drive the disc 3 to rotate, and the insertion rod 4 and the arc-shaped through groove 7 have a limiting effect on the limiting cylinder 6, so that the four clamping columns 8 are moved closer to or farther away from each other, thereby facilitating the clamping of circular workpieces with different inner diameters. This solves the problem that the existing machine tool clamps are inconvenient to clamp the circular workpiece by its inner diameter, thereby avoiding the problem that only the outer diameter of the circular workpiece can be clamped but it is inconvenient to process the outer diameter of the circular workpiece, and the threaded hole 9 and the screw rod 10 are used in combination to facilitate the installation and removal of the clamping column 8.

[0049] It is convenient to choose to clamp the inner diameter or outer diameter of the circular workpiece according to subsequent processing requirements:

[0050] Start the servo motor 2 to drive the disc 3 to rotate, and use the limiting effect of the insert rod 4 and the arc-shaped through groove 7 on the limiting cylinder 6 to make the four clamping rods 5 approach or move away from each other, so as to facilitate the clamping of circular workpieces with different outer diameters for subsequent inner diameter processing, and pull the connecting block 13 to make the limiting rod 12 away from one of the positioning holes 15, and use the elastic reset principle of the tension spring 14 to facilitate the installation and removal of the clamping rod 5. After disassembly, the problem of the circular workpiece being large and inconvenient to clamp it through the inner diameter of the circular workpiece is avoided, and the installation and removal of the clamping column 8 is convenient due to the coordinated use of the threaded hole 9 and the screw rod 10, so as to avoid the problem that the inner diameter of the circular workpiece is small and it cannot be clamped through the outer diameter of the circular workpiece. Therefore, it is convenient to choose to clamp the inner diameter or outer diameter of the circular workpiece according to the subsequent processing requirements to meet the subsequent different processing requirements.

[0051] The above is only a preferred embodiment of the present invention, and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technician familiar with this patent can make some changes or modifications to equivalent embodiments of equivalent changes using the technical content suggested above without departing from the scope of the technical solution of the present invention. The implementation schemes in the above embodiments can also be further combined or replaced. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the present invention.

Claims

1. A machine tool fixture, comprising a box (1), characterized in that: A servo motor (2) is arranged at the bottom of the box (1), a disc (3) connected to the driving end of the servo motor (2) is arranged inside the box (1), and plug rods (4) are inserted at the front, rear, left and right sides of the box (1), and a limiting cylinder (6) is installed at one end of the plug rod (4). The tops of the box (1) and the disc (3) are provided with an arc-shaped through groove (7) adapted to the limiting cylinder (6), and the top of the limiting cylinder (6) is provided with a clamping column (8), and the top of the limiting cylinder (6) is provided with a threaded hole (9), and the inner wall of the threaded hole (9) is threadedly connected with a screw rod (10), and the top of the screw rod (10) is connected to the bottom end of the clamping column (8).

2. A machine tool fixture according to claim 1, characterized in that: A clamping rod (5) is provided at the other end of the insertion rod (4), a sliding rod (11) connected to the insertion rod (4) is installed on one side of the clamping rod (5), a limiting rod (12) is inserted at the top of the insertion rod (4), a connecting block (13) is installed at the top of the limiting rod (12), a tension spring (14) sleeved on the outside of the limiting rod (12) is installed between the connecting block (13) and the insertion rod (4), a plurality of positioning holes (15) at equal intervals are opened on the top of the sliding rod (11), and the tension spring (14) in the initial state enables the connecting block (13) to insert the limiting rod (12) into one of the positioning holes (15).

3. A machine tool fixture according to claim 2, characterized in that: A protective shell (16) is installed at the bottom of the box body (1), the servo motor (2) is installed inside the protective shell (16), a fixing seat (17) is installed on the inner wall of the protective shell (16), the servo motor (2) is installed on one side of the fixing seat (17), a heat dissipation port (22) is opened at the bottom of the protective shell (16), and a dust filter is installed on the inner wall of the heat dissipation port (22).

4. A machine tool fixture according to claim 3, characterized in that: An anti-skid pad (18) is installed on one side of the clamp rod (5), and an anti-skid sleeve (19) is installed on the outer wall of the clamp column (8). The anti-skid pad (18) and the anti-skid sleeve (19) are both made of rubber, and the outer surfaces of the anti-skid pad (18) and the anti-skid sleeve (19) are integrally formed with anti-skid particles.

5. A machine tool fixture according to claim 4, characterized in that: A pull ring (20) is installed on the outer surface of the connecting block (13), and the screw rod (10) is made of stainless steel.

6. A machine tool fixture according to claim 5, characterized in that: The bottom of the box body (1) is provided with supporting legs (21), the number of the supporting legs (21) is four, and the four supporting legs (21) are respectively located at the four corners of the bottom of the box body (1).

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