Four-jaw chuck center positioning and clamping device

Abstract

The utility model relates to the field of chucks, and discloses a four-jaw chuck center positioning and clamping device which comprises a chuck body, a plurality of sliding grooves are formed in one side of the chuck body, a sliding plate is arranged in the sliding grooves in a sliding mode, an extrusion plate is fixed to one side of the sliding plate, a threaded column is fixed to one side of the extrusion plate, and the threaded column is fixed to the other side of the sliding plate. An intercepting plate is slidably inserted into the threaded column, two nuts are in threaded connection with the threaded column, and the two nuts are located on the two sides of the intercepting plate correspondingly. According to the clamping device, the rotating threaded rod is in threaded connection with the sliding plate to drive the sliding plate to move in the direction of the circle center of the chuck body, then the extrusion plate can be driven to press the surface of a material, the material can be clamped to one side of the chuck body, and then a worker rotates two nuts on the threaded column; and the height of the intercepting plate on the threaded column is adjusted, so that the intercepting plate can be intercepted on one side of the material, the material is prevented from longitudinally sliding off, and the firmness of the clamped material is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of chucks, in particular to a four-claw chuck center positioning and clamping device. Background Art

[0002] The chuck is a mechanical device used to clamp the workpiece on a pipe cutting machine. It uses the radial movement of movable jaws evenly distributed on the chuck body to clamp the workpiece in place. During the cutting process, it rotates the workpiece, creating a precise positioning and clamping mechanism. It is a key component of the pipe cutting machine and plays a key role in its cutting accuracy.

[0003] According to the Chinese patent announcement number: CN220240089U, a four-axis turntable clamping device includes a mounting plate, a positioning shaft is fixedly provided at the center of the surface of the mounting plate, a mounting mechanism is provided in the positioning shaft, a chuck is sleeved on the outer wall of the positioning shaft, and a fixing mechanism is provided on the chuck. The mounting mechanism includes a motor 1 embedded in the positioning shaft, a rotating plate is fixedly connected to the output shaft of the motor 1, the edge of the rotating plate surface is hinged to one end of a plurality of mounting claws through a plurality of connecting rods, and the plurality of mounting claws are all slidably provided on the outer wall of the positioning shaft, and the other ends of the plurality of mounting claws are respectively inserted into a plurality of mounting holes opened on the inner wall of the chuck. A plurality of positioning columns are also fixed on the positioning shaft, and the positioning columns are inserted into the positioning holes opened on the chuck.

[0004] In the above scheme, fixed claws are used to clamp and fix the material, which still has the following disadvantages: when the fixed claws clamp and fix the material, the fixed claws only squeeze and contact the surface of the material, and the material may still slip from the longitudinal direction of the fixed claws, resulting in insufficient firmness in clamping the material. Utility Model Content

[0005] The purpose of the utility model is to provide a four-jaw chuck center positioning clamping device to solve the problem that the fixed jaws are only in extrusion contact with the surface of the material, the material may still slip from the longitudinal direction of the fixed jaws, and the firmness of the material clamping is insufficient.

[0006] In order to achieve the above-mentioned purpose of the utility model, the utility model adopts the following technical solutions: a four-jaw chuck center positioning clamping device, comprising a chuck body, a plurality of sliding grooves are opened on one side of the chuck body, a sliding plate is slidingly arranged inside the sliding groove, an extrusion plate is fixed on one side of the sliding plate, a threaded column is fixed on one side of the extrusion plate, an intercepting plate is slidably inserted on the threaded column, two nuts are threadedly connected to the threaded column, and the two nuts are respectively located on both sides of the intercepting plate.

[0007] Preferably, a mounting groove is opened on one side of the interior of the sliding groove, a driving motor is fixed inside the mounting groove, a threaded rod is fixed to one end of the output shaft of the driving motor, and the threaded rod is threadedly connected to the sliding plate.

[0008] Preferably, a central through hole is opened on one side of the chuck body, a rotating shaft is slidably inserted into the interior of the central through hole, and one end of the rotating shaft is threadedly connected with a mounting bolt.

[0009] Preferably, a limiting groove is provided on the inner wall surface of the central through hole, a limiting strip is fixed on the surface of the rotating shaft, and the limiting groove and the limiting strip are slidably arranged.

[0010] Preferably, a rotating column is fixed to one side of the interior of the sliding groove, and a rotating groove is opened at one end of the threaded rod, and the rotating groove and the rotating column are rotatably inserted.

[0011] Preferably, a plurality of fixing grooves are provided on one side of the chuck body, and anti-slip strips are fixed inside the fixing grooves.

[0012] Compared with the existing technology, a four-jaw chuck center positioning clamping device adopting the above technical solution has the following beneficial effects:

[0013] 1. When the staff is positioning the material on one side of the chuck body, the staff will first place the material on one side of the chuck body, and then the staff will start the drive motor. The output shaft of the drive motor will drive the threaded rod to rotate synchronously. The rotating threaded rod uses the threaded connection with the sliding plate to drive the sliding plate to move toward the center of the chuck body, and then drive the extrusion plate to press on the surface of the material, so that the material can be clamped on one side of the chuck body. Then the staff turns the two nuts on the threaded column to adjust the height of the intercepting plate on the threaded column, and then the intercepting plate can be intercepted on one side of the material to prevent the material from sliding longitudinally, thereby increasing the firmness of the material after being clamped;

[0014] Second, when the material needs to be processed and the chuck body needs to be used to drive the material to rotate, the rotating shaft will drive the chuck body to rotate synchronously. Since the rotating shaft is inserted into the interior of the chuck body, it will drive the limit bar to slide into the limit groove, which can prevent the rotating shaft from idling when driving the chuck body to rotate;

[0015] 3. When the threaded rod rotates, it will drive the rotating groove to rotate on the surface of the rotating column, thereby increasing the stability of the other end of the threaded rod during rotation, thereby preventing the threaded rod from bending and deforming under force. When the material is clamped on one side of the chuck body, the surface of the material will contact the surface of the anti-slip strip, increasing the friction between the material and the chuck body, and preventing the material from sliding. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional schematic diagram of an embodiment.

[0017] Figure 2 It is an exploded perspective diagram of an embodiment.

[0018] Figure 3 It is an exploded diagram of the sliding groove and the sliding plate in the embodiment.

[0019] Figure 4 It is a schematic diagram of the explosion at the extrusion plate and the intercepting plate in the embodiment.

[0020] In the figure: 1. Chuck body; 2. Sliding groove; 3. Sliding plate; 4. Extrusion plate; 5. Threaded column; 6. Interceptor plate; 7. Nut; 8. Mounting groove; 9. Drive motor; 10. Threaded rod; 11. Center through hole; 12. Rotating shaft; 13. Limiting groove; 14. Limiting strip; 15. Mounting bolt; 16. Fixing groove; 17. Anti-slip strip; 18. Rotating groove; 19. Rotating column. DETAILED DESCRIPTION

[0021] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0022] like Figure 1-Figure 4 As shown, a four-jaw chuck center positioning clamping device includes a chuck body 1, a plurality of sliding grooves 2 are opened on one side of the chuck body 1, a sliding plate 3 is slidingly arranged inside the sliding groove 2, an extrusion plate 4 is fixed on one side of the sliding plate 3, a threaded column 5 is fixed on one side of the extrusion plate 4, an intercepting plate 6 is slidably inserted on the threaded column 5, two nuts 7 are threadedly connected to the threaded column 5, and the two nuts 7 are respectively located on both sides of the intercepting plate 6, an installation groove 8 is opened on one side of the inner side of the sliding groove 2, a drive motor 9 is fixed inside the installation groove 8, a threaded rod 10 is fixed on one end of the output shaft of the drive motor 9, and the threaded rod 10 is threadedly connected to the sliding plate 3.

[0023] During use, when the staff is positioning the material on one side of the chuck body 1, the staff will first place the material on one side of the chuck body 1, and then the staff will start the drive motor 9. The rotating output shaft of the drive motor 9 will drive the threaded rod 10 to rotate synchronously. The rotating threaded rod 10 uses the threaded connection with the sliding plate 3 to drive the sliding plate 3 to move toward the center of the chuck body 1, and then drive the extrusion plate 4 to press on the surface of the material, so that the material can be clamped on one side of the chuck body 1. Then the staff rotates the two nuts 7 on the threaded column 5 to adjust the height of the intercepting plate 6 on the threaded column 5, and then the intercepting plate 6 can be intercepted on one side of the material to prevent the material from sliding longitudinally, thereby increasing the firmness of the material after being clamped.

[0024] like Figure 2As shown, a central through hole 11 is provided on one side of the chuck body 1, a rotating shaft 12 is slidably inserted into the interior of the central through hole 11, one end of the rotating shaft 12 is threadedly connected with a mounting bolt 15, a limiting groove 13 is provided on the inner wall surface of the central through hole 11, a limiting strip 14 is fixed on the surface of the rotating shaft 12, and the limiting groove 13 and the limiting strip 14 are slidably arranged.

[0025] During use, when the material needs to be processed and the chuck body 1 needs to be used to drive the material to rotate, the rotating rotary shaft 12 will drive the chuck body 1 to rotate synchronously. Since the rotating shaft 12 is inserted into the interior of the chuck body 1, it will drive the limit bar 14 to slide into the limit groove 13, which can prevent the rotating shaft 12 from idling when driving the chuck body 1 to rotate.

[0026] like Figure 2 and Figure 3 As shown, a rotating column 19 is fixed on one side of the inner side of the sliding groove 2, a rotating groove 18 is opened at one end of the threaded rod 10, the rotating groove 18 and the rotating column 19 are rotatably inserted, and a plurality of fixed grooves 16 are opened on one side of the chuck body 1, and an anti-slip strip 17 is fixed inside the fixed groove 16.

[0027] During use, when the threaded rod 10 rotates, it will drive the rotating groove 18 to rotate on the surface of the rotating column 19, thereby increasing the stability of the other end of the threaded rod 10 during rotation, thereby preventing the threaded rod 10 from bending and deforming under force. When the material is clamped on one side of the chuck body 1, the surface of the material will contact the surface of the anti-slip strip 17, increasing the friction between the material and the chuck body 1, and preventing the material from sliding.

[0028] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A four-jaw chuck center positioning clamping device, comprising a chuck body (1), characterized in that: A plurality of sliding grooves (2) are provided on one side of the chuck body (1), a sliding plate (3) is slidably provided inside the sliding groove (2), an extrusion plate (4) is fixed on one side of the sliding plate (3), a threaded column (5) is fixed on one side of the extrusion plate (4), an intercepting plate (6) is slidably inserted on the threaded column (5), two nuts (7) are threadedly connected on the threaded column (5), and the two nuts (7) are respectively located on both sides of the intercepting plate (6).

2. A four-jaw chuck center positioning clamping device according to claim 1, characterized in that: An installation groove (8) is provided on one side of the interior of the sliding groove (2), a driving motor (9) is fixed inside the installation groove (8), a threaded rod (10) is fixed at one end of the output shaft of the driving motor (9), and the threaded rod (10) is threadedly connected to the sliding plate (3).

3. A four-jaw chuck center positioning clamping device according to claim 1, characterized in that: A central through hole (11) is provided on one side of the chuck body (1), a rotating shaft (12) is slidably inserted into the interior of the central through hole (11), and one end of the rotating shaft (12) is threadedly connected to a mounting bolt (15).

4. A four-jaw chuck center positioning clamping device according to claim 3, characterized in that: A limiting groove (13) is provided on the inner wall surface of the central through hole (11), a limiting strip (14) is fixed on the surface of the rotating shaft (12), and the limiting groove (13) and the limiting strip (14) are slidably arranged.

5. The four-jaw chuck center positioning clamping device according to claim 2, characterized in that: A rotating column (19) is fixed to one side of the interior of the sliding groove (2), and a rotating groove (18) is opened at one end of the threaded rod (10), and the rotating groove (18) and the rotating column (19) are rotatably inserted.

6. A four-jaw chuck center positioning clamping device according to claim 1, characterized in that: A plurality of fixing grooves (16) are provided on one side of the chuck body (1), and anti-slip strips (17) are fixed inside the fixing grooves (16).

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