Multi-specification adaptive machine tool clamping jaw

Abstract

The utility model discloses a multi-specification adaptive machine tool clamping jaw, which belongs to the technical field of machine tool processing, and comprises a chuck, four sliding chutes are respectively arranged at quartering points above the chuck, the four sliding chutes respectively face four directions, four linkage screw rods are respectively and rotatably connected in the four sliding chutes, and the four linkage screw rods are connected with the chuck. And the outer wall of the linkage screw rod is in threaded connection with a sliding block. According to the multi-specification adaptive machine tool clamping jaw, the linkage screw rod, the sliding blocks and the clamping jaw bodies are arranged, when workpieces are machined, in the rotating process of the linkage screw rod, the sliding blocks on the outer wall of the linkage screw rod move under the action of threads, and the four sliding blocks drive the four clamping jaw bodies to be close to or away from one another according to the sizes of the workpieces so that the clamping distance can be adjusted; in addition, the clamping contact face can be automatically adjusted according to the size of the workpiece, in this way, the clamping requirements of workpieces of different specifications can be automatically met under the condition that parts are not replaced, the machining efficiency of workpiece machining is improved, and the machining cost is further reduced.

Description

Technical Field

[0001] This utility model belongs to the field of machine tool processing technology, specifically a multi-specification adaptable machine tool chuck. Background Technology

[0002] With the development of modern manufacturing, the types and specifications of products are becoming increasingly diversified. Machine tools need to be able to process workpieces of different specifications quickly and efficiently, from tiny precision parts to large industrial components. This requires machine tool chucks to automatically adapt to the clamping needs of different workpiece specifications without changing parts. In traditional machine tool processing, many chucks are designed and manufactured according to specific specifications. For example, for workpieces within a certain fixed diameter range, the size and shape of the chucks are fixed. When different specifications of workpieces need to be processed, different chucks often need to be changed. This not only increases processing costs, but also reduces production efficiency because the process of changing chucks is time-consuming. Utility Model Content

[0003] To overcome the above-mentioned defects, this utility model provides a multi-specification adaptable machine tool chuck, which solves the problem that in traditional machine tool processing, many chucks are designed and manufactured according to specific specifications. When different specifications of workpieces need to be processed, different chucks often need to be replaced. This not only increases processing costs, but also reduces production efficiency due to the time spent on changing chucks.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a multi-specification adaptable machine tool chuck, comprising a chuck, with four grooves respectively formed at its four equal division points on the top of the chuck, the four grooves facing four directions respectively, and four linkage screws rotatably connected in the four grooves respectively, with sliders threaded to the outer walls of the linkage screws, the grooves and sliders being cross-shaped near the top of the chuck, the sliders sliding in the grooves, and a chuck fixedly mounted on the top of the slider, the chucks having a stepped design decreasing in size from the inside to the outside, the number of chucks being four, the four chucks facing opposite directions, four linkage gears fixedly connected to the opposite ends of the four linkage screws respectively, and an output motor fixedly mounted at the center of the bottom of the chuck, the output end of the output motor penetrating the bottom of the chuck and fixedly connected to a drive gear, the drive gear meshing with the four linkage gears.

[0005] As a further embodiment of this utility model: a base is provided below the chuck, a turntable is rotatably connected above the base via a ratchet gear, and a bracket is fixedly connected below the chuck.

[0006] As a further embodiment of this utility model: a support column is fixedly connected above the turntable at its center position, and a telescopic rod is provided between the turntable and the chuck on one side of the support column.

[0007] As a further embodiment of this utility model: connecting blocks are fixedly connected to both ends of the telescopic rod and the top of the support column; the connecting blocks at both ends of the telescopic rod are respectively connected to the bottom of the chuck and the top of the turntable; and the connecting block at the top of the support column is connected to the bottom of the bracket.

[0008] As a further embodiment of this utility model: a limiting rod is fixedly installed above the turntable on one side of the support column, and the limiting rod is L-shaped and perpendicular to the chuck.

[0009] As a further embodiment of this utility model: four protrusions are fixedly connected at the four equal division points of the chassis, and a fixing bolt is provided on one side of each protrusion, the fixing bolt penetrating the protrusion.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0011] 1. This multi-size adaptable machine tool chuck, through the setting of linkage gears, linkage screws, sliders, and chucks, when machining a workpiece, the output motor drives the drive gear to rotate, the drive gear rotates synchronously with the four linkage gears meshing with it, and in turn drives the four linkage screws to rotate synchronously. During the rotation of the linkage screws, the sliders on their outer walls move under the action of the threads. The four sliders drive the four chucks to move closer or further apart according to the size of the workpiece, adjusting the clamping distance. It can also automatically adjust the clamping contact surface according to the size of the workpiece. In this way, it can automatically adapt to the clamping requirements of different sizes of workpieces without changing the components, improving the workpiece machining efficiency and reducing the machining cost.

[0012] 2. This multi-specification compatible machine tool chuck, through the setting of a support column, telescopic rod, and connecting rotating block, allows the workpiece to be fixed above the chuck for processing. When the workpiece is fixed above the chuck, the telescopic rod extends or retracts. The telescopic rod itself is above the turntable via the connecting rotating block at its bottom end, while the connecting rotating block at its end pulls or pushes the pull plate below the chuck. This causes the chuck to drive another connecting rotating block to rotate at the end of the support column through the bracket. In this way, the orientation and angle of the chuck can be adjusted so that the workpiece can be processed at the optimal angle. Attached Figure Description

[0013] Figure 1 This is a top view of the structure of this utility model;

[0014] Figure 2 This is a structural schematic diagram of the present invention viewed from below;

[0015] Figure 3 This is a cross-sectional structural diagram of the chuck of this utility model;

[0016] Figure 4This utility model Figure 3 Enlarged structural diagram at point A;

[0017] In the diagram: 1. Chuck; 2. Slide groove; 3. Linkage screw; 4. Slider; 5. Claw; 6. Linkage gear; 7. Output motor; 8. Drive gear; 9. Chassis; 10. Turntable; 11. Bracket; 12. Support column; 13. Telescopic rod; 14. Connecting rotating block; 15. Limiting rod; 16. Protrusion; 17. Fixing bolt. Detailed Implementation

[0018] The technical solution of this patent will be further described in detail below with reference to specific embodiments.

[0019] like Figure 1-4 As shown, this utility model provides a technical solution: a multi-specification adaptable machine tool chuck, including a chuck 1. Four sliding grooves 2 are respectively formed at four equal division points on the top of the chuck 1, with each groove 2 facing one of the four directions. Four linkage screws 3 are rotatably connected to each of the four grooves 2. Slider 4s are threadedly connected to the outer walls of the linkage screws 3. The grooves 2 and sliders 4 near the top of the chuck 1 are both cross-shaped. The sliders 4 slide within the grooves 2. Through the cooperation between the sliders 4 and the grooves 2, the sliders 4 slide within the grooves 2 under the action of the linkage screws 3. The cross-shaped... The design helps improve the stability of slider 4 in slide groove 2, prevents slider 4 from flipping when sliding in slide groove 2, makes slider 4 move more smoothly, and thus improves the clamping accuracy of jaw 5. Jaw 5 is fixedly installed on the top of slider 4. Jaw 5 has a stepped design that decreases stepwise from the inside to the outside. This stepped design allows jaw 5 to better adapt to workpieces of different specifications, provide stable clamping force when clamping workpieces of different diameters, and automatically adjust the clamping contact surface according to the size of the workpiece, effectively preventing the workpiece from sliding during processing.

[0020] There are four jaws 5, facing each other. Four linkage gears 6 are fixedly connected to the opposite ends of the four linkage screws 3. An output motor 7 is fixedly installed at the center of the bottom of the chuck 1. The output end of the output motor 7 passes through the bottom of the chuck 1 and is fixedly connected to a drive gear 8. The drive gear 8 meshes with the four linkage gears 6. Through the cooperation between the linkage gears 6 and the drive gear 8, the rotation of the drive gear 8 drives the rotation of the four linkage gears 6, thereby achieving synchronous rotation of the four linkage screws 3 and ensuring synchronous movement of the four jaws 5, thus ensuring uniform clamping of the workpiece.

[0021] Below the chuck 1 is a base plate 9. Four protrusions 16 are fixedly connected at the four equal division points of the base plate 9. A fixing bolt 17 is provided on one side of the protrusion 16. The fixing bolt 17 passes through the protrusion 16. Because of the fixing bolt 17, the base plate 9 can be firmly fixed to the worktable of the machine tool to prevent the base plate 9 from shaking during the processing and to ensure the processing accuracy.

[0022] A turntable 10 is rotatably connected to the top of the chassis 9 via a ratchet gear. A bracket 11 is fixedly connected to the bottom of the chuck 1. A limit rod 15 is fixedly installed on one side of the support column 12 above the turntable 10. The limit rod 15 is L-shaped and perpendicular to the chuck 1. Because of the limit rod 15, when the chuck 1 tilts under the action of the telescopic rod 13 to complete the workpiece processing and reset, the telescopic rod 13 drives the chuck 1 to rotate and overlap the top of the limit rod 15. The limit rod 15 can limit the rotation range of the chuck 1 and prevent the chuck from jamming. 1. In case of excessive rotation during rotation, resulting in inaccurate subsequent processing position, a support column 12 is fixedly connected above the turntable 10 at its center position. A telescopic rod 13 is provided between the turntable 10 and the chuck 1 on one side of the support column 12. Connecting rotating blocks 14 are fixedly connected to both ends of the telescopic rod 13 and the top of the support column 12. The connecting rotating blocks 14 at both ends of the telescopic rod 13 are connected to the bottom of the chuck 1 and the top of the turntable 10, respectively. The connecting rotating block 14 at the top of the support column 12 is connected to the bottom of the bracket 11.

[0023] The working principle of this utility model is as follows: When processing the workpiece, the output motor 7 drives the drive gear 8 to rotate. The drive gear 8 drives four linkage gears 6 to rotate inside the chuck 1. The four linkage gears 6 drive four linkage screws 3 to rotate respectively. During the rotation of the linkage screws 3 in the slide groove 2, the sliders 4 slide in the slide groove 2. The four sliders 4 drive the four jaws 5 to move closer to each other. According to the size and shape of the workpiece, the contact surface of the jaws 5 is selected to place the workpiece on the top of the chuck 1 for fixation. During the workpiece processing, when it is necessary to adjust the processing angle of the workpiece, the telescopic rod 13 extends or shortens and pushes or pulls the chuck 1 through the connecting rotating block 14 at its end, so that the chuck 1 rotates at the end of the support column 12 through the bracket 11 and another connecting rotating block 14, thereby processing the workpiece.

[0024] 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.

[0025] 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 multi-specification adapted machine tool chuck jaw comprising a chuck (1), characterized in that: The upper of the chuck (1) is provided with four grooves (2) at its four quarter points, respectively, four grooves (2) are respectively connected with four linkage screw rods (3) rotating in the four grooves (2), the outer wall of the linkage screw rod (3) is threadedly connected with a sliding block (4), the sliding block (4) is provided with a claw (5) fixedly installed at the top end of the sliding block (4), the claw (5) is designed in a stepped manner decreasing from inside to outside, the number of the claw (5) is four, the four claws (5) are opposite to each other, the opposite ends of the four linkage screw rods (3) are fixedly connected with four linkage gears (6), the bottom of the chuck (1) is fixedly installed with an output motor (7) at the center position, the output end of the output motor (7) penetrates the bottom of the chuck (1) and is fixedly connected with a driving gear (8), the driving gear (8) is engaged with the four linkage gears (6).

2. A multi-specification adapted machine tool chuck jaw according to claim 1, characterized in that: The bottom of the chuck (1) is provided with a bottom disc (9), the upper of the bottom disc (9) is rotatably connected with a rotating disc (10) through a thorn gear, the bottom of the chuck (1) is fixedly connected with a support (11).

3. A multi-specification adapted machine tool chuck jaw according to claim 2, characterized in that: The upper of the rotating disc (10) is fixedly connected with a support column (12) at the center position, the rotating disc (10) and the chuck (1) are provided with a telescopic rod (13) on one side of the support column (12).

4. A multi-specification adapted machine tool chuck jaw according to claim 3, characterized in that: The two ends of the telescopic rod (13) and the top end of the support column (12) are fixedly connected with a connecting rotating block (14), the connecting rotating blocks (14) at the two ends of the telescopic rod (13) are respectively connected with the bottom of the chuck (1) and the top of the rotating disc (10), the connecting rotating block (14) at the top end of the support column (12) is connected with the bottom of the support (11).

5. A multi-specification adapted machine tool chuck jaw according to claim 3, characterized in that: The upper of the rotating disc (10) is fixedly installed with a limiting rod (15) on one side of the support column (12), the limiting rod (15) is designed in an L shape and is perpendicular to the chuck (1).

6. A multi-specification adapted machine tool chuck jaw according to claim 2, characterized in that: The four quarter points of the bottom disc (9) are fixedly connected with four protrusions (16), one side of the protrusion (16) is provided with a fixed bolt (17), the fixed bolt (17) penetrates the protrusion (16).

Images