Stable-clamping chuck for precision machining

Abstract

The utility model discloses a precise machining chuck capable of stably clamping, which belongs to the technical field of chucks and comprises a chuck base, a chuck shell is fixedly connected onto the chuck base, three sliding grooves are arranged at the top of the chuck shell, through grooves are arranged on two sides of each sliding groove, and limiting strips are slidably connected onto the inner walls of the through grooves. According to the stable-clamping chuck for precise machining, the sliding base, the clamping frame, the clamping blocks and the rubber blocks are arranged, an output toothed bar is rotated, the output toothed bar drives a grooved wheel on a fluted disc to rotate through toothed connection with the fluted disc, and the grooved wheel can drive the sliding base to move towards a workpiece needing to be clamped through an arc-shaped block; the clamping block on one side of the clamping frame can drive the rubber block to abut against the surface of the workpiece along with movement of the sliding base, the clamping block is driven to adjust the clamping angle along with the shape of the workpiece along with continuous movement of the sliding base, and then the chuck can stably clamp the workpieces in different shapes conveniently.

Description

Technical Field

[0001] This utility model belongs to the field of chuck technology, specifically a chuck for stable clamping in precision machining. Background Technology

[0002] Precision machining is a process that alters the shape, dimensions, or properties of a workpiece through machining. This technology plays a crucial role in modern manufacturing. A chuck is a mechanical device used in precision machining to clamp workpieces. A chuck generally consists of a chuck body, movable jaws, and a jaw drive mechanism. The chuck clamps the workpiece by utilizing the radial movement of the movable jaws evenly distributed on the chuck body. Chucks are commonly used on lathes, external cylindrical grinding machines, and internal cylindrical grinding machines, and can also be used with various indexing devices on milling machines and drilling machines. However, existing chucks often fail to provide stable clamping when holding irregular workpieces, leading to workpiece detachment and collisions during machining, resulting in workpiece damage and poor stability. Utility Model Content

[0003] To overcome the above-mentioned defects, this utility model provides a chuck for precision machining with stable clamping, which solves the problem that when the chuck clamps irregular workpieces, it is easy to fail to clamp them stably, causing the workpiece to easily detach and collide during processing, resulting in workpiece damage and poor stability.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a chuck for stable clamping in precision machining, comprising a chuck base, a chuck housing fixedly connected to the chuck base, three sliding grooves on the top of the chuck housing, through grooves on both sides of each sliding groove, limit strips slidably connected to the inner wall of each through groove, a sliding seat fixedly connected between two limit strips, the sliding seat slidably connected to the sliding groove, several arc-shaped blocks under the sliding seat, a slide bar slidably connected to the sliding seat, a clamping frame fixedly connected to the top of the slide bar, two clamping blocks rotatably connected inside the clamping frame, two rubber blocks fixedly connected to one side of each clamping block, two return springs provided on the side of each clamping block away from the rubber blocks, and the return springs fixedly connected to the inner wall of the clamping frame.

[0005] As a further embodiment of this utility model: a mounting plate is installed on the top of the slide bar, and insertion slots are provided on both sides of the mounting plate.

[0006] As a further embodiment of this utility model: the inner wall of the sliding seat has two storage slots, and each storage slot has a plug-in plate slidably connected to its inner wall, the plug-in plate corresponding to the plug-in slot.

[0007] As a further embodiment of this utility model: a threaded rod is rotatably mounted on one side of the plug plate, the threaded rod is threadedly connected to the sliding seat, and limit rods are fixedly connected to both sides of the plug plate on the threaded rod.

[0008] As a further embodiment of this utility model: three output toothed rods are rotatably connected to the outside of the chuck base, and the three output toothed rods are externally connected to the same toothed disc.

[0009] As a further embodiment of this utility model: a rotating ring is installed on the gear plate, the rotating ring is rotatably connected to the chuck housing, a grooved wheel is provided on the top of the rotating ring, and the grooved wheel is slidably connected to the arc-shaped block.

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

[0011] 1. This chuck for precision machining with stable clamping, by setting up a sliding seat, clamping frame, clamping block and rubber block, when the chuck clamps the workpiece, the output rack rotates, so that the output rack drives the grooved wheel on the gear plate to rotate through the toothed engagement with the gear plate. The grooved wheel drives the sliding seat to move towards the workpiece to be clamped through the arc-shaped block, so that the clamping block on one side of the clamping frame can drive the rubber block to abut against the workpiece surface as the sliding seat moves. As the sliding seat continues to move, it drives the clamping block to adjust the clamping angle according to the shape of the workpiece, thereby facilitating the chuck to stably clamp workpieces of different shapes.

[0012] 2. This chuck for precision machining with stable clamping is equipped with a threaded rod, a connector plate, a receiving groove, and a connector slot. Rotating the threaded rod causes the connector plate to slide inside the receiving groove. As the threaded rod rotates, the connector plate disengages from the connector slot, thus removing the connector slot from fixing the mounting plate. This facilitates the sliding of the mounting plate, allowing the mounting plate to remove the clamping frame from the sliding seat, making it easy to replace the clamping frame. 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 clamping block and sliding seat of this utility model;

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

[0016] In the diagram: 1. Chuck base; 2. Chuck housing; 3. Slide groove; 4. Through groove; 5. Limiting strip; 6. Sliding seat; 7. Arc block; 8. Sliding bar; 9. Clamping frame; 10. Clamping block; 11. Rubber block; 12. Return spring; 13. Insertion groove; 14. Storage groove; 15. Threaded rod; 16. Insertion plate; 17. Limiting rod; 18. Output gear; 19. Gear plate; 20. Rotary ring; 21. Grooved wheel; 22. Mounting 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 chuck for precision machining with stable clamping, including a chuck base 1, three output racks 18 are rotatably connected to the outside of the chuck base 1, and the same gear plate 19 is externally toothed on the three output racks 18. By setting the output racks 18, rotating any one of the three output racks 18 can drive the gear plate 19 to rotate, thereby facilitating the rotation of the grooved wheel 21 on the gear plate 19.

[0019] A rotating ring 20 is installed on the gear disk 19. The rotating ring 20 is rotatably connected to the chuck housing 2. A grooved wheel 21 is provided on the top of the rotating ring 20. The grooved wheel 21 is slidably connected to the arc block 7. By setting the rotating ring 20, the rotating ring 20 is fixedly connected to the gear disk 19 and the grooved wheel 21, so that the gear disk 19 can drive the grooved wheel 21 to rotate through the rotating ring 20.

[0020] A chuck housing 2 is fixedly connected to the chuck base 1. The top of the chuck housing 2 has three sliding grooves 3. Each sliding groove 3 has a through groove 4 on both sides. A limit strip 5 is slidably connected to the inner wall of the through groove 4. A sliding seat 6 is fixedly connected between the two limit strips 5. The sliding seat 6 is slidably connected to the sliding groove 3. Several arc-shaped blocks 7 are set under the sliding seat 6. By setting the arc-shaped blocks 7, when the groove wheel 21 rotates, the arc-shaped blocks 7 under the three sliding seats 6 can drive the sliding seat 6 to move at the same time as the groove wheel 21 rotates, so that the sliding seat 6 can drive the clamping frame 9 to clamp.

[0021] A slide bar 8 is slidably connected to the slide base 6. An installation plate 22 is installed on the top of the slide bar 8. Insertion slots 13 are provided on both sides of the installation plate 22. Two storage slots 14 are provided on the inner wall of the slide base 6. An insertion plate 16 is slidably connected to the inner wall of each storage slot 14. The insertion plate 16 corresponds to the insertion slot 13. By setting the storage slots 14, the storage slots 14 can store the insertion plate 16, making it convenient to slide the installation plate 22 into the slide base 6, and then fix the installation plate 22 inside the slide base 6.

[0022] A threaded rod 15 is rotatably mounted on one side of the plug plate 16. The threaded rod 15 is threadedly connected to the sliding seat 6. Limiting rods 17 are fixedly connected to both sides of the plug plate 16 on the threaded rod 15. By setting the limiting rods 17, when the threaded rod 15 drives the plug plate 16 to move, the limiting rods 17 can slide on the inner wall of the sliding seat 6 as the plug plate 16 moves, thereby limiting the plug plate 16.

[0023] A clamping frame 9 is fixedly connected to the top of the slide bar 8. Two clamping blocks 10 are rotatably connected inside the clamping frame 9. Two rubber blocks 11 are fixedly connected to one side of each clamping block 10. Two return springs 12 are provided on the side of each clamping block 10 away from the rubber blocks 11. The return springs 12 are fixedly connected to the inner wall of the clamping frame 9. By setting the rubber blocks 11, when the clamping frame 9 drives the clamping blocks 10 to clamp the workpiece, the rubber blocks 11 on one side of the clamping block 10 can contact the workpiece first, thereby increasing the friction between the workpiece and the workpiece, and facilitating the clamping of the workpiece.

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

[0025] In use, the workpiece is placed in the middle of the chuck housing 2. The output rack 18 is rotated, causing the rack 18 to rotate via its meshing with the gear plate 19. This, in turn, causes the gear plate 19 to rotate via the rotating ring 20, which in turn causes the grooved wheel 21 to rotate. The grooved wheel 21, through the arc-shaped block 7, causes the three sliding seats 6 to slide within the through groove 4, moving the sliding seats 6 towards the workpiece. This allows the clamping frame 9 on the sliding seats 6 to clamp the rubber block 11 on one side of the clamping block 10 with the workpiece. As the clamping frame 9 continues to move, the clamping block 10 compresses the return spring 12 according to the workpiece shape, changing the clamping angle and increasing the contact area with the workpiece to stabilize it. When the clamping block 10 needs to be replaced after long-term use, rotate the threaded rod 15 to move the plug plate 16 so that the plug plate 16 can be stored in the storage slot 14, thus removing the plug plate 16 from the mounting plate 22. Remove the mounting plate 22 and the clamping frame 9 from the sliding seat 6, slide the new mounting plate 22 into the sliding seat 6, align the plug slot 13 with the plug plate 16, rotate the threaded rod 15 to move the plug plate 16 out of the storage slot 14, and insert the plug plate 16 into the plug slot 13 to fix and clamp the mounting plate 22, thereby realizing the quick replacement of the clamping block 10 on the clamping frame 9.

[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 chuck for stable clamping in precision machining, comprising a chuck base (1), characterized in that: A chuck housing (2) is fixedly connected to the chuck base (1). The top of the chuck housing (2) is provided with three sliding grooves (3). Each sliding groove (3) has a through groove (4) on both sides. A limit strip (5) is slidably connected to the inner wall of the through groove (4). A sliding seat (6) is fixedly connected between two limit strips (5). The sliding seat (6) is slidably connected to the sliding groove (3). Several arc-shaped blocks (7) are provided under the sliding seat (6). A slide bar (8) is slidably connected to the sliding seat (6). A clamping frame (9) is fixedly connected to the top of the slide bar (8). Two clamping blocks (10) are rotatably connected inside the clamping frame (9). Two rubber blocks (11) are fixedly connected to one side of each clamping block (10). Two return springs (12) are provided on the side of each clamping block (10) away from the rubber blocks (11). The return springs (12) are fixedly connected to the inner wall of the clamping frame (9).

2. The chuck for stable clamping in precision machining according to claim 1, characterized in that: The top of the slide bar (8) is equipped with a mounting plate (22), and the mounting plate (22) has insertion slots (13) on both sides.

3. The chuck for stable clamping in precision machining according to claim 2, characterized in that: The inner wall of the sliding seat (6) has two storage slots (14), and each storage slot (14) has a plug plate (16) slidably connected to its inner wall. The plug plate (16) corresponds to the plug slot (13).

4. The chuck for stable clamping in precision machining according to claim 3, characterized in that: A threaded rod (15) is rotatably mounted on one side of the plug plate (16). The threaded rod (15) is threadedly connected to the sliding seat (6). Limiting rods (17) are fixedly connected to both sides of the plug plate (16) on the threaded rod (15).

5. A chuck for stable clamping in precision machining according to claim 1, characterized in that: The chuck base (1) is externally rotatably connected to three output gears (18), and the three output gears (18) are externally connected to the same gear disk (19).

6. A chuck for stable clamping in precision machining according to claim 5, characterized in that: A rotating ring (20) is installed on the toothed disc (19). The rotating ring (20) is rotatably connected to the chuck housing (2). A grooved wheel (21) is provided on the top of the rotating ring (20). The grooved wheel (21) is slidably connected to the arc block (7).

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