Combined clamping type machine tool clamping jaw

The innovative design of the combined clamping jaws for machine tools solves the problems of reduced clamping effect and high replacement cost caused by the wear of existing jaws, achieving low-cost, flexible workpiece clamping and stability.

CN223933147UActive Publication Date: 2026-02-24WAFANGDIAN HUANTONG MASCH TOOL ACCESSORIES CO LTD
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Patent Information

Application Number
CN202520592704.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-31
Publication Date
2026-02-24
Estimated Expiration
2035-03-31

AI Technical Summary

Technical Problem

The gripping parts of existing machine tool chucks are prone to wear, which reduces the gripping effect and requires complete replacement, increasing the cost of use.

Method used

A modular clamping machine tool gripper was designed. The gripper can be detached and installed through a combination structure of sliding groove, clamping block, clamping plate and clamping groove. The height of the clamping plate can be adjusted by knob and threaded rod, and stable clamping is provided by rubber plate.

Benefits of technology

It reduces the overall cost of use, improves the stability and flexibility of the clamping effect, and facilitates adaptable clamping of different workpieces.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a combined clamping type machine tool clamping jaw, which belongs to the technical field of machine tool clamping jaws and comprises a clamping jaw body, an adjusting seat is fixedly connected to the top of the clamping jaw body, a lifting plate is slidably connected to one side of the adjusting seat, a sliding groove is formed in the top of the lifting plate, two clamping blocks are fixedly connected to the inner wall of the sliding groove, and the clamping blocks are fixedly connected to the inner wall of the sliding groove. And first through grooves are formed in one side of the clamping block and one side of the lifting plate. According to the combined clamping type machine tool clamping jaw, the sliding groove, the clamping blocks, the clamping plate and the clamping grooves are arranged, the clamping grooves in the two sides of the clamping plate are aligned with the clamping blocks in the sliding groove, the clamping plate moves downwards to enter the sliding groove, and after the clamping plate completely enters the sliding groove, a first through groove is aligned with a second through groove; and a fixing bolt penetrates through a first through groove and a second through groove to be fixed, so that the lifting plate and the clamping plate are fixedly mounted, the clamping plate and the clamping jaw body are conveniently assembled, and the overall use cost is reduced.
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Description

Technical Field

[0001] This utility model belongs to the field of machine tool chuck technology, specifically a combination clamping type machine tool chuck. Background Technology

[0002] Machine tool chucks are crucial components used for clamping workpieces in machine tool accessories. They come in various types, including two-jaw, three-jaw, four-jaw, and six-jaw chucks. Three-jaw chucks are the most commonly used, offering relatively high centering accuracy and suitable for clamping most round workpieces. Four-jaw chucks, on the other hand, allow for individual adjustment of each jaw's position to clamp irregularly shaped workpieces. The jaws clamp and position the workpiece radially, ensuring its stability during machining and preventing displacement or vibration under cutting forces, centrifugal forces, etc., thus guaranteeing machining accuracy and surface quality. However, the clamping parts of existing machine tool chucks are prone to wear, leading to reduced clamping effectiveness. In such cases, replacement of the entire chuck is necessary. Since most chucks are one-piece designs, disassembly and replacement of the entire jaw increases operating costs. Utility Model Content

[0003] To overcome the above-mentioned defects, this utility model provides a combined clamping type machine tool clamping jaw, which solves the problem that the clamping part of the jaw body is very easy to wear during the use of machine tool clamping jaw, which leads to a reduction in clamping effect. At this time, the whole jaw needs to be replaced. However, most jaws are one piece, and the entire jaw needs to be disassembled and replaced during disassembly, which increases the cost of use.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a combined clamping type machine tool clamping jaw, comprising a jaw body, an adjusting seat fixedly connected to the top of the jaw body, a lifting plate slidably connected to one side of the adjusting seat, a sliding groove opened on the top of the lifting plate, two locking blocks fixedly connected to the inner wall of the sliding groove, a first through groove opened on one side of each locking block and the lifting plate, a locking plate slidably connected to the inner wall of the sliding groove, locking grooves opened on both sides of each locking plate, the locking grooves corresponding to the locking blocks, a second through groove opened between the two locking grooves, the second through groove corresponding to the first through groove, a fixing bolt installed on one side of the lifting plate, the fixing bolt passing through the first through groove and the second through groove.

[0005] As a further embodiment of this utility model: a clamping plate is fixedly connected to one side of the snap-fit ​​plate, and several rubber plates are installed on one side of the clamping plate.

[0006] As a further embodiment of this utility model: a threaded rod is rotatably connected to the middle of the side of the adjusting seat near the lifting plate, and a knob is rotatably connected to the top of the threaded rod through the adjusting seat.

[0007] As a further embodiment of this utility model: two limiting rods are fixedly connected to the side of the adjusting seat near the threaded rod, and a movable plate is fixedly connected to the bottom of the lifting plate away from the slide groove, and the movable plate is threadedly connected to the threaded rod.

[0008] As a further embodiment of this utility model: two linkage plates are fixedly connected to the bottom of the lifting plate near the movable plate, and the linkage plates are slidably connected to the limiting rod.

[0009] As a further embodiment of this utility model: limit grooves are provided on both sides of the claw body, and several spiral grooves are provided on the bottom of the claw body.

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

[0011] 1. This combined clamping machine tool gripper jaw, by setting a sliding groove, a snap-fit ​​block, a snap-fit ​​plate, and a snap-fit ​​slot, aligns the snap-fit ​​slots on both sides of the snap-fit ​​plate with the snap-fit ​​block inside the sliding groove, allowing the snap-fit ​​plate to move downwards into the sliding groove. As the snap-fit ​​plate is fully inside the sliding groove, the first through slot and the second through slot are aligned, allowing the fixing bolts to pass through the first through slot and the second through slot for fixation, thereby achieving the fixed installation of the lifting plate and the snap-fit ​​plate. This facilitates the assembly of the clamping plate and the gripper body, thereby reducing the overall operating cost.

[0012] 2. This combination clamping machine tool clamping jaws are equipped with a knob, a threaded rod, a lifting plate, and a movable plate. Rotating the knob causes the threaded rod to rotate, which in turn causes the movable plate outside the threaded rod to move up and down. This allows the movable plate to move the lifting plate up and down, thus enabling the height adjustment of the clamping plate and facilitating stable clamping of different fixed workpieces. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a cross-sectional structural diagram of the snap-fit ​​plate and the lifting plate of this utility model;

[0015] Figure 3 This is a schematic diagram of the adjusting seat and locking block structure of this utility model;

[0016] In the diagram: 1. Claw body; 2. Adjustment seat; 3. Lifting plate; 4. Slide groove; 5. Snap-fit ​​block; 6. First through groove; 7. Snap-fit ​​plate; 8. Snap-fit ​​groove; 9. Second through groove; 10. Fixing bolt; 11. Clamping plate; 12. Rubber plate; 13. Limit groove; 14. Spiral groove; 15. Threaded rod; 16. Knob; 17. Movable plate; 18. Limit rod; 19. Linkage plate. Detailed Implementation

[0017] The technical solution of this patent will be further described in detail below with reference to specific embodiments.

[0018] like Figure 1-3 As shown, this utility model provides a technical solution: a combined clamping type machine tool clamping jaw, including a jaw body 1, with limit grooves 13 on both sides of the jaw body 1, and several spiral grooves 14 on the bottom of the jaw body 1. By setting the spiral grooves 14, the jaw body 1 can be assembled with the chuck, thereby facilitating the movement of the jaw body 1 through the spiral grooves 14.

[0019] An adjustment seat 2 is fixedly connected to the top of the claw body 1. A threaded rod 15 is rotatably connected to the middle of the side of the adjustment seat 2 near the lifting plate 3. A knob 16 is rotatably connected to the top of the threaded rod 15 through the adjustment seat 2. By setting the knob 16, rotating the knob 16 can control the direction of rotation of the threaded rod 15, so that the threaded rod 15 can drive the lifting plate 3 to rise and fall, thereby realizing the adjustment of the height of the lifting plate 3.

[0020] Two limiting rods 18 are fixedly connected to the side of the adjusting seat 2 near the threaded rod 15. A movable plate 17 is fixedly connected to the bottom of the side of the lifting plate 3 away from the slide 4. The movable plate 17 is threadedly connected to the threaded rod 15. Two linkage plates 19 are fixedly connected to the bottom of the side of the lifting plate 3 near the movable plate 17. The linkage plates 19 are slidably connected to the limiting rods 18. By setting the limiting rods 18, when the threaded rod 15 drives the movable plate 17 to move, the linkage plate 19 on one side of the lifting plate 3 can slide outside the limiting rods 18, so that the limiting rods 18 can limit the lifting plate 3 through the linkage plates 19, making the movement of the lifting plate 3 more stable.

[0021] A lifting plate 3 is slidably connected to one side of the adjusting seat 2, and a clamping plate 11 is fixedly connected to one side of the clamping plate 7. Several rubber plates 12 are installed on one side of the clamping plate 11. By setting the rubber plates 12, when the chuck body 1 is ready to clamp the workpiece, the rubber plates 12 contact the workpiece, thereby achieving stable clamping of the workpiece through friction.

[0022] The top of the lifting plate 3 is provided with a sliding groove 4. Two locking blocks 5 are fixedly connected to the inner wall of the sliding groove 4. The locking blocks 5 and one side of the lifting plate 3 are both provided with a first through groove 6. The inner wall of the sliding groove 4 is slidably connected with a locking plate 7. Both sides of the locking plate 7 are provided with locking grooves 8. The locking grooves 8 correspond to the positions of the locking blocks 5. By setting the locking grooves 8, the locking plate 7 is inserted into the locking grooves 8, thereby limiting and fixing the locking plate 7, which facilitates the alignment of the first through groove 6 and the second through groove 9.

[0023] A second through groove 9 is provided between the two snap-fit ​​grooves 8. The second through groove 9 corresponds to the position of the first through groove 6. A fixing bolt 10 is installed on one side of the lifting plate 3. The fixing bolt 10 passes through the first through groove 6 and the second through groove 9. By setting the fixing bolt 10, the fixing bolt 10 passes through the second through groove 9 and the first through groove 6, so as to conveniently fix the snap-fit ​​plate 7 inside the slide groove 4.

[0024] The working principle of this utility model is as follows:

[0025] In use, align the snap-fit ​​grooves 8 on both sides of the snap-fit ​​plate 7 with the snap-fit ​​blocks 5 inside the slide 4, then insert the snap-fit ​​plate 7 into the slide 4. After the snap-fit ​​plate 7 is fully inserted into the slide 4, align the second through grooves 9 on both sides of the snap-fit ​​plate 7 with the first through groove 6 on the snap-fit ​​block 5. Then, let the fixing bolts 10 pass through the first through groove 6 and the second through groove 9 to fix them, thereby fixing the adjusting seat 2 and the snap-fit ​​plate 7, and thus completing the fixed installation of the clamping plate 11 and the adjusting seat 2. When it is necessary to adjust the height of the clamping plate 11, turn the knob 16 so that the knob 16 drives the threaded rod 15 to rotate inside the adjusting seat 2. As the threaded rod 15 rotates, it drives the movable plate 17 outside the threaded rod 15 to move, so that the movable plate 17 can drive the lifting plate 3 to move up and down, thereby controlling the height adjustment of the lifting plate 3, so that the lifting plate 3 can drive the clamping plate 11 to adjust its height, so that the clamping plate 11 can drive the rubber plate 12 to stably clamp workpieces of different heights.

[0026] 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.

[0027] 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 combination clamping type machine tool clamping jaw, comprising a jaw body (1), characterized in that: The top of the claw body (1) is fixedly connected to an adjustment seat (2). A lifting plate (3) is slidably connected to one side of the adjustment seat (2). A sliding groove (4) is opened on the top of the lifting plate (3). Two locking blocks (5) are fixedly connected to the inner wall of the sliding groove (4). A first through groove (6) is opened on one side of both the locking block (5) and the lifting plate (3). A locking plate (7) is slidably connected to the inner wall of the sliding groove (4). Locking grooves (8) are opened on both sides of the locking plate (7). The locking grooves (8) correspond to the locking blocks (5). A second through groove (9) is opened between the two locking grooves (8). The second through groove (9) corresponds to the first through groove (6). A fixing bolt (10) is installed on one side of the lifting plate (3). The fixing bolt (10) passes through the first through groove (6) and the second through groove (9).

2. The combined clamping type machine tool gripper according to claim 1, characterized in that: A clamping plate (11) is fixedly connected to one side of the snap-fit ​​plate (7), and several rubber plates (12) are installed on one side of the clamping plate (11).

3. The combined clamping type machine tool gripper according to claim 1, characterized in that: The adjusting seat (2) is rotatably connected to a threaded rod (15) on the side near the lifting plate (3), and the top of the threaded rod (15) passes through the adjusting seat (2) and is rotatably connected to a knob (16).

4. The combined clamping type machine tool gripper according to claim 3, characterized in that: The adjusting seat (2) has two limiting rods (18) fixedly connected to the side near the threaded rod (15), and the lifting plate (3) has a movable plate (17) fixedly connected to the bottom of the side away from the slide groove (4), and the movable plate (17) is threadedly connected to the threaded rod (15).

5. A combined clamping type machine tool gripper according to claim 4, characterized in that: The lifting plate (3) has two linkage plates (19) fixedly connected to the bottom of the side near the movable plate (17), and the linkage plates (19) are slidably connected to the limiting rod (18).

6. The combined clamping type machine tool gripper according to claim 1, characterized in that: Limiting grooves (13) are provided on both sides of the claw body (1), and several spiral grooves (14) are provided at the bottom of the claw body (1).