Temperature-control anti-deformation machine tool chuck
By designing a temperature-controlled, anti-deformation machine tool chuck, and utilizing elastic buffering and temperature regulation, the problem of workpiece deformation and wear caused by direct contact between the jaws is solved, thereby improving the clamping effect and service life of the chuck.
Patent Information
- Application Number
- CN202520308871.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-25
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2035-02-25
AI Technical Summary
When existing machine tool chucks clamp workpieces, the jaws directly contact the workpiece surface, which may cause workpiece deformation or wear. The jaws are also prone to wear, affecting the performance.
A temperature-controlled, deformation-resistant machine tool chuck was designed. Through the combination of movable blocks, jaws, and springs, the workpiece is clamped using elastic buffering. The water-cooling system of the jaws is controlled by sensors to regulate the temperature, thus avoiding damage caused by direct contact.
It effectively avoids workpiece deformation and jaw wear, improves the chuck's performance, and achieves flexible clamping and temperature regulation.
Smart Images

Figure CN223762178U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of machine tool processing technology, specifically a temperature-controlled and deformation-preventing machine tool chuck. Background Technology
[0002] A chuck is a mechanical device used in machining to clamp workpieces. A chuck generally consists of a chuck body, moving jaws, and a jaw drive mechanism. The chuck clamps the workpiece by utilizing the radial movement of the moving jaws evenly distributed on the chuck body. Chucks are commonly used on lathes, external cylindrical grinding machines, and internal cylindrical grinding machines. They can also be used with various indexing devices on milling machines and drilling machines. However, with existing machine tool chucks, the jaws directly contact the workpiece surface when clamping, which may lead to workpiece deformation or wear. Simultaneously, the chuck jaws themselves may wear, resulting in poor chuck performance. Utility Model Content
[0003] To overcome the above-mentioned defects, this utility model provides a temperature-controlled and deformation-resistant machine tool chuck, which solves the problem that when the machine tool chuck clamps a workpiece, the chuck jaws may directly contact the workpiece surface, which may cause the workpiece to deform or wear. At the same time, the chuck jaws may wear, which will lead to poor performance of the chuck.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a temperature-controlled and deformation-resistant machine tool chuck, comprising a chuck housing, three sliding grooves on the top of the chuck housing, two limiting blocks slidably connected to the inner wall of each sliding groove, a sliding seat fixedly connected between the two limiting blocks, a chuck claw on the top of the sliding seat, a storage groove on one side of the chuck claw, two limiting telescopic rods fixedly connected to the inner wall of the storage groove, a first spring located at the position of each limiting telescopic rod on the inner wall of the storage groove, a common movable block fixedly connected to one end of the two limiting telescopic rods, the movable block being fixedly connected to the first spring, a claw head on the side of the movable block away from the limiting telescopic rod, and two engaging grooves on one side of the claw head.
[0005] As a further embodiment of this utility model: connecting rods are slidably connected to both sides of the movable block, and a pull block is provided on one side of each connecting rod.
[0006] As a further embodiment of this utility model: a plug block is fixedly connected to the end of the connecting rod away from the pull block, the plug block is positioned corresponding to the snap-fit groove, and a second spring is installed on the connecting rod at the position on one side of the plug block.
[0007] As a further embodiment of this utility model: a water inlet is fixedly connected to one side of the sliding seat, and a water pipe is installed on one side of the water inlet, and the water pipe is fixedly connected to the sliding seat.
[0008] As a further embodiment of this utility model: the end of the water pipe away from the water inlet is provided with a water outlet, and flexible hoses are installed on both the water inlet and the water outlet side.
[0009] As a further embodiment of this utility model: three toothed plates are fixedly connected to the bottom of the sliding seat, a rotating toothed disk is toothed on the outside of the toothed plates, several teeth are fixedly connected to the bottom of the rotating toothed disk, three adjusting seats are toothed on the lower part of the teeth, a chuck mounting seat is rotatably connected to one end of the adjusting seat, the chuck mounting seat is fixedly connected to the chuck housing, and a sensor is fixedly connected to one side of the chuck claw.
[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0011] 1. This temperature-controlled, deformation-resistant machine tool chuck, by setting up a movable block, a jaw, and a first spring, allows the sliding seat to move as the rotating gear plate drives the sliding plate to move towards the workpiece. After the jaw contacts the workpiece surface, as the sliding seat continues to move, the jaw can drive the movable block to squeeze the first spring, thereby generating a relative elastic force. This elastic force causes the jaw to press tightly against the workpiece surface, buffering the jaw's clamping against the workpiece surface and preventing the jaw from directly clamping the workpiece surface and causing damage due to excessive force.
[0012] 2. This temperature-controlled, anti-deformation machine tool chuck is equipped with a pull block, a connecting rod, a locking groove, and a plug-in block. Pulling the pull block allows it to move the plug-in block via the connecting rod, causing the plug-in block to move out of the locking groove and simultaneously compressing the second spring, which generates a relative elastic force. As the plug-in block leaves the locking groove, the fixed limit on the jaw head is removed, making it convenient to replace the jaw head.
[0013] 3. This temperature-controlled, anti-deformation machine tool chuck is equipped with a water inlet, a water pipe, a water outlet, and a flexible hose. The sensor controls the flexible hose to introduce water at a suitable temperature into the water inlet, thereby allowing the water at the appropriate temperature to regulate the temperature of the jaws and sliding seat through the water pipe, and then discharge through the water outlet, effectively regulating the temperature of the jaws on the chuck. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of this utility model;
[0015] Figure 2 This is a cross-sectional structural diagram of the sliding seat and the claw of this utility model;
[0016] Figure 3 This is a cross-sectional structural diagram of the chuck shell and chuck mounting base of this utility model;
[0017] In the diagram: 1. Chuck housing; 2. Slide groove; 3. Limiting block; 4. Sliding seat; 5. Claw; 6. Storage slot; 7. Limiting telescopic rod; 8. First spring; 9. Movable block; 10. Claw head; 11. Snap-fit groove; 12. Connecting rod; 13. Pull block; 14. Insertion block; 15. Water inlet; 16. Water pipe; 17. Water outlet; 18. Flexible hose; 19. Toothed plate; 20. Rotating toothed disc; 21. Tooth; 22. Adjusting seat; 23. Chuck mounting seat; 24. Second spring; 25. Sensor. Detailed Implementation
[0018] The technical solution of this patent will be further described in detail below with reference to specific embodiments.
[0019] like Figure 1-3 As shown, this utility model provides a technical solution: a temperature-controlled and deformation-resistant machine tool chuck, including a chuck housing 1. The top of the chuck housing 1 is provided with three sliding grooves 2. Two limiting blocks 3 are slidably connected to the inner wall of each sliding groove 2. By setting the limiting blocks 3, when the sliding seat 4 moves, the limiting blocks 3 can slide inside the sliding groove 2, so that the sliding groove 2 limits the sliding seat 4 through the limiting blocks 3, so that the sliding seat 4 can more stably drive the jaws 5 to clamp.
[0020] A sliding seat 4 is fixedly connected between two limit blocks 3. A water inlet 15 is fixedly connected to one side of the sliding seat 4. A water pipe 16 is installed on one side of the water inlet 15. The water pipe 16 is fixedly connected to the sliding seat 4. An outlet 17 is provided at the end of the water pipe 16 away from the water inlet 15. A hose 18 is installed on both the water inlet 15 and the outlet 17. By setting the hose 18, the hose 18 can move together with the sliding seat 4, so that cold water can enter the sliding seat 4 from the hose 18 to cool the sliding seat 4.
[0021] Three toothed plates 19 are fixedly connected to the bottom of the sliding seat 4. A rotating toothed disk 20 is toothed on the outside of the toothed plates 19. Several teeth 21 are fixedly connected to the bottom of the rotating toothed disk 20. Three adjusting seats 22 are toothed on the bottom of the teeth 21. A chuck mounting seat 23 is rotatably connected to one end of the adjusting seat 22. The chuck mounting seat 23 is fixedly connected to the chuck housing 1. A sensor 25 is fixedly connected to one side of the chuck 5. By setting the adjusting seat 22, the adjusting seat 22 can drive the teeth 21 to rotate, so that the teeth 21 drive the toothed plates 19 to rotate through the rotating toothed disk 20, thereby allowing the sliding seat 4 on the toothed plate 19 to clamp the workpiece.
[0022] The top of the sliding seat 4 is provided with a claw 5, and a storage groove 6 is provided on one side of the claw 5. Two limiting telescopic rods 7 are fixedly connected to the inner wall of the storage groove 6. Each limiting telescopic rod 7 is provided with a first spring 8 at the position of the inner wall of the storage groove 6. By setting the limiting telescopic rods 7, when the claw 5 moves into the storage groove 6, the claw 5 will drive the limiting telescopic rods 7 to move in the storage groove 6, thereby limiting the claw 5 and making the movement of the claw 5 more stable.
[0023] Two limiting telescopic rods 7 are fixedly connected to the same movable block 9 at one end. Connecting rods 12 are slidably connected to both sides of the movable block 9. Each connecting rod 12 is provided with a pull block 13 on one side. By setting the pull block 13, the pull block 13 can be pulled so that the pull block 13 can drive the connecting rod 12 to slide inside the movable block 9, thereby facilitating the movement of the connecting rod 12 and the plug-in block 14.
[0024] A plug-in block 14 is fixedly connected to the end of the connecting rod 12 away from the pull block 13. The plug-in block 14 corresponds to the position of the snap-fit groove 11. A second spring 24 is installed on the side of the connecting rod 12 located on the plug-in block 14. By setting the second spring 24, when the connecting rod 12 moves the plug-in block 14, the plug-in block 14 can squeeze the second spring 24, so that the second spring 24 generates a relative elastic force, which makes it convenient for the second spring 24 to drive the plug-in block 14 to reset when the pull block 13 is released.
[0025] The movable block 9 is fixedly connected to the first spring 8. A claw head 10 is provided on the side of the movable block 9 away from the limiting telescopic rod 7. Two locking grooves 11 are opened on one side of the claw head 10. By setting the locking grooves 11, the locking grooves 11 are the same in position and shape as the insertion block 14, so that the insertion block 14 can be easily inserted into the locking grooves 11 to fix and limit the claw head 10.
[0026] The working principle of this utility model is as follows:
[0027] In use, select the appropriate jaw 10 according to the workpiece to be clamped, pull the pull block 13, so that the pull block 13 drives the insertion block 14 to move to both sides of the movable block 9 through the connecting rod 12, so that the insertion block 14 squeezes the second spring 24 during movement, so that the second spring 24 generates a relative elastic force. Then insert the jaw 10 into the movable block 9, release the pull block 13, so that the second spring 24 can drive the insertion block 14 to reset through the elastic force, so that the insertion block 14 can enter the locking groove 11 on both sides of the jaw 10 to fix the jaw 10. Then rotate the adjusting seat 22, so that the adjusting seat 22 can drive the tooth 21 to rotate, so that the tooth 21 can drive the tooth plate 19 to rotate through the rotating tooth disk 20, so that the three limit blocks 3 can move together. The jaw 10 moves towards the workpiece so that it rests against the workpiece surface. As the adjusting seat 22 continues to rotate, the jaw 10 drives the movable block 9 to move into the receiving groove 6, thereby causing the movable block 9 to squeeze the first spring 8, which generates a relative elastic force. The first spring 8 then drives the jaw 10 to press tightly against the workpiece surface, thus completing the clamping and fixing of the workpiece. When it is necessary to adjust the temperature of the jaw 5 and the sliding seat 4, the sensor 25 controls water of a suitable temperature to enter the inlet 15 through the hose 18. The water of a suitable temperature can then enter the water pipe 16 through the inlet 15 to adjust the temperature of the jaw 5 and the sliding seat 4. The water is then discharged from the hose 18 at the outlet 17, thereby achieving rapid temperature adjustment of the jaw 5 and the sliding seat 4.
[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0029] The preferred embodiments of this patent have been described in detail above. However, this patent is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this patent.
Claims
1. A temperature controlled anti-deformation machine tool chuck comprising a chuck housing (1), characterized in that: The chuck shell (1) top is provided with three grooves (2), each of the groove (2) inner wall is slidably connected with two limit blocks (3), two limit blocks (3) are fixedly connected with sliding seat (4), the sliding seat (4) top is provided with jaw (5), the jaw (5) one side is provided with receiving groove (6), the receiving groove (6) inner wall is fixedly connected with two limit telescopic rod (7), each limit telescopic rod (7) is provided with first spring (8) in the position of receiving groove (6) inner wall, two limit telescopic rod (7) one end is fixedly connected with the same movable block (9), the movable block (9) is fixedly connected with first spring (8), the movable block (9) is provided with claw head (10) on the side away from limit telescopic rod (7), the claw head (10) one side is provided with two clamping grooves (11).
2. A temperature controlled anti-deformation machine tool chuck according to claim 1, characterized in that: The movable block (9) both sides are slidably connected with connecting rod (12), each connecting rod (12) one side is provided with pull block (13).
3. A temperature controlled anti-deformation machine tool chuck according to claim 2, characterized in that: The connecting rod (12) is fixedly connected with the plug-in block (14) on the side away from pull block (13), the plug-in block (14) corresponds to the position of clamping groove (11), the connecting rod (12) is installed with second spring (24) on the side of plug-in block (14).
4. The temperature controlled anti-deformation machine tool chuck according to claim 1, wherein: The sliding seat (4) one side is fixedly connected with water inlet (15), the water inlet (15) one side is installed with water pipe (16), the water pipe (16) is fixedly connected with sliding seat (4).
5. A temperature controlled anti-deformation machine tool chuck according to claim 4, characterized in that: The water outlet (17) is arranged on the end of the water pipe (16) away from the water inlet (15), the water inlet (15) and the water outlet (17) one side are installed with hose (18).
6. The temperature controlled anti-deformation machine tool chuck according to claim 1, wherein: The sliding seat (4) bottom is fixedly connected with three toothed plates (19), the toothed plate (19) is connected with rotating toothed disc (20), the rotating toothed disc (20) bottom is fixedly connected with a plurality of teeth (21), the teeth (21) are connected with three adjusting seats (22), the adjusting seat (22) one end is rotatably connected with chuck mounting seat (23), the chuck mounting seat (23) is fixedly connected with chuck shell (1), the jaw (5) one side is fixedly connected with sensor (25).