A machine tool lathe chuck

Abstract

The utility model discloses a machining lathe chuck, including pneumatic chuck body and positioning mechanism, the pneumatic chuck body is fixedly installed with multiple groups of mobile claw, the bottom fixed connection of mobile claw has the clamping claw, one side of mobile claw is provided with the position adjusting mechanism of positioning mechanism positioning pressure adjustment, be provided with the position locking mechanism of positioning mechanism position adjustment on mobile claw and positioning mechanism. The utility model sets up the pneumatic chuck body can drive four groups of mobile claw to move, and when utilizing the clamping claw to hold the circular pipe, can first utilize the positioning mechanism to complete the preliminary positioning locking of circular pipe, can thus assist the circular pipe rotation positioning when the clamping claw does not hold the circular pipe, and the position locking mechanism that sets up can pull up the position of adjusting positioning mechanism, thereby convenient for the maintenance of clamping claw, and the position adjusting mechanism that sets up can adjust the pressure of positioning mechanism, thereby can guarantee the more stable of circular pipe predetermined clamping.

Description

Technical Field

[0001] This utility model relates to the field of machine tool processing technology, specifically to a lathe chuck for machining. Background Technology

[0002] A lathe chuck is a key component used to hold a workpiece in place, allowing it to rotate with the lathe spindle for various machining operations. The chuck securely clamps the workpiece through its clamping mechanism, ensuring that it will not loosen or slip under high-speed rotation and cutting forces, thus guaranteeing machining accuracy and safety.

[0003] When machining round pipe fittings, the stability of the chuck is required. When machining round pipe fittings, the starting position of the machining needs to be set. However, after the round pipe fitting is fixed by the chuck, it is not easy to rotate it. Therefore, it is necessary to repeatedly start the chuck to work and adjust it. This can easily damage the round pipe. To address this, we propose a machining lathe chuck. Utility Model Content

[0004] The purpose of this invention is to provide a machining lathe chuck to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a lathe chuck for machining, comprising a pneumatic chuck body and a positioning mechanism. Multiple sets of movable jaws are fixedly mounted on the pneumatic chuck body. A connecting seat is fixedly connected to the bottom of each movable jaw. A locking jaw is fixedly connected to the bottom of the connecting seat via multiple sets of screws. The bottom of the positioning mechanism is always in contact with and positioned against a round tube. A position adjustment mechanism for adjusting the positioning pressure of the positioning mechanism is provided on one side of each movable jaw. A position locking mechanism for adjusting the position of the positioning mechanism is provided on both the movable jaw and the positioning mechanism.

[0006] Furthermore, the position adjustment mechanism includes a fixed block, a threaded rod, a sliding rod, a threaded sleeve, and a spring. Two sets of fixed blocks are fixedly connected to one side of the moving claw. A threaded rod is fixedly connected to the bottom of one set of fixed blocks. A sliding rod is fixedly connected to the bottom of the threaded rod. A positioning mechanism is slidably connected to the outside of the sliding rod. A threaded sleeve is threadedly connected to the outside of the threaded rod. A spring is fixedly connected to the bottom of the threaded sleeve and outside the sliding rod. The bottom of the spring is fixedly connected to the positioning mechanism.

[0007] Furthermore, the positioning mechanism includes a slider, a support frame, and pressure rollers. The slider is slidably connected to the outside of the slide rod. The bottom of the spring is fixedly connected to the top of the slider. The support frame is fixedly connected to the bottom of the slider. Two sets of pressure rollers are rotatably connected to the support frame.

[0008] Furthermore, the position locking mechanism includes a protective plate, a locking groove, a threaded groove, and a fixing bolt. A protective plate that fits against the outer wall of the moving claw is fixedly connected to one side of the slider. The protective plate has a locking groove, and the moving claw has a threaded groove. A fixing bolt that is threadedly connected to the threaded groove is provided inside the locking groove.

[0009] Furthermore, a rubber pad is fixedly connected inside the locking claw, and the rubber pad is provided with multiple sets of anti-slip protrusions.

[0010] Furthermore, the pressure roller is made of stainless steel.

[0011] Compared with the prior art, the present invention has the following advantages: The pneumatic chuck body of the present invention can drive four sets of moving claws to move, so that the round tube can be fixed and clamped by the clamping claws. When clamping the round tube by the clamping claws, the positioning mechanism can first complete the initial positioning and locking of the round tube, so that the round tube can be positioned when the clamping claws are not clamping the round tube, and the position of the round tube can be rotated and adjusted. The position locking mechanism can pull up and adjust the position of the positioning mechanism, so as to facilitate the maintenance of the clamping claws. The position adjustment mechanism can adjust the pressure of the positioning mechanism, so as to ensure that the predetermined clamping of the round tube is more stable. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural schematic diagram of the present utility model;

[0013] Figure 2 This is a three-dimensional view of the installation structure of the moving claw of this utility model;

[0014] Figure 3 This is a three-dimensional structural diagram of the positioning mechanism and position adjustment mechanism of this utility model.

[0015] In the diagram: 1. Pneumatic chuck body; 2. Moving claw; 3. Connecting seat; 4. Clamping claw; 5. Position adjustment mechanism; 6. Positioning mechanism; 7. Position locking mechanism; 8. Fixing block; 9. Threaded rod; 10. Slide rod; 11. Threaded sleeve; 12. Spring; 13. Slider; 14. Support frame; 15. Pressure roller; 16. Protective plate; 17. Locking groove; 18. Threaded groove; 19. Fixing bolt. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Please see Figures 1-3 This utility model provides a technical solution: a machining lathe chuck, including a pneumatic chuck body 1 and a positioning mechanism 6. Multiple sets of moving claws 2 are fixedly installed on the pneumatic chuck body 1. A connecting seat 3 is fixedly connected to the bottom of the moving claw 2. A locking claw 4 is fixedly connected to the bottom of the connecting seat 3 by multiple sets of screws. The bottom of the positioning mechanism 6 is always in contact with the round tube for positioning. A position adjustment mechanism 5 for adjusting the positioning pressure of the positioning mechanism 6 is provided on one side of the moving claw 2. A position locking mechanism 7 for adjusting the position of the positioning mechanism 6 is provided on the moving claw 2 and the positioning mechanism 6.

[0018] The pneumatic chuck body 1 can drive four sets of moving claws 2 to move, thereby using the clamping claws 4 to fix and hold the round tube. When using the clamping claws 4 to clamp the round tube, the positioning mechanism 6 can first complete the initial positioning and locking of the round tube. This can assist in the positioning of the round tube when the clamping claws 4 are not clamping it, and the position of the round tube can be rotated and adjusted. The position adjustment mechanism 5 can pull up and adjust the position of the positioning mechanism 6, thereby facilitating the maintenance of the clamping claws 4. The position adjustment mechanism 5 can also adjust the pressure of the positioning mechanism 6, thereby ensuring a more stable clamping of the round tube.

[0019] Please see Figure 1 and Figure 3 The position adjustment mechanism 5 includes a fixed block 8, a threaded rod 9, a slide rod 10, a threaded sleeve 11, and a spring 12. Two sets of fixed blocks 8 are fixedly connected to one side of the moving claw 2. The bottom of one set of fixed blocks 8 is fixedly connected to the threaded rod 9, the bottom of the threaded rod 9 is fixedly connected to the slide rod 10, the outside of the slide rod 10 is slidably connected to the positioning mechanism 6, the outside of the threaded rod 9 is threadedly connected to the threaded sleeve 11, the bottom of the threaded sleeve 11 and located outside the slide rod 10 is fixedly connected to the spring 12, and the bottom of the spring 12 is fixedly connected to the positioning mechanism 6.

[0020] The positioning mechanism 6 is slidably mounted on the outside of the slide rod 10, and the spring 12 can provide a compressive force to the positioning mechanism 6. Then, when it is necessary to compress the spring 12, the threaded sleeve 11 is rotated to rotate along the outside of the threaded rod 9, so that the spring 12 can be compressed, thereby enabling the spring 12 to provide a larger compressive force to the positioning mechanism 6.

[0021] Please see Figure 1 and Figure 3 The positioning mechanism 6 includes a slider 13, a support frame 14, and pressure rollers 15. The slider 13 is slidably connected to the outside of the slide rod 10. The bottom of the spring 12 is fixedly connected to the top of the slider 13. The support frame 14 is fixedly connected to the bottom of the slider 13. Two sets of pressure rollers 15 are rotatably connected to the support frame 14.

[0022] The spring 12 provides a squeezing force to the slider 13, which keeps the pressure roller 15 in contact with and positioned against the round tube. This allows the pressure roller 15 to remain in contact with and positioned against the round tube even when the clamping claw 4 is rising, facilitating the initial positioning of the round tube and allowing the round tube to be rotated for position adjustment.

[0023] Please see Figure 1 , Figure 2 and Figure 3 The position locking mechanism 7 includes a protective plate 16, a locking groove 17, a threaded groove 18, and a fixing bolt 19. The protective plate 16, which is in contact with the outer wall of the moving claw 2, is fixedly connected to one side of the slider 13. The protective plate 16 has a locking groove 17, and the moving claw 2 has a threaded groove 18. The locking groove 17 is provided with a fixing bolt 19 that is threadedly connected to the threaded groove 18.

[0024] When maintenance of the locking claw 4 is required, the support frame 14 is pulled up along the slide bar 10. Then the locking groove 17 on the protective plate 16 corresponds to the threaded groove 18. Then the fixing bolt 19 can pass through the locking groove 17 and threadedly connect with the threaded groove 18. This allows the support frame 14 and the pressure roller 15 to be lifted, making it convenient to maintain and replace the locking claw 4.

[0025] Please see Figure 2 The internal fixed connection of the clamping claw 4 is a rubber pad, and the rubber pad is provided with multiple sets of anti-slip protrusions. The rubber pad and anti-slip protrusions can prevent the round tube from sliding when clamping and positioning it.

[0026] Please see Figure 1 and Figure 3 The pressure roller 15 is made of stainless steel. The stainless steel material of the pressure roller 15 can prevent the round tube from being contaminated by rust when it comes into contact with the round tube.

[0027] In use, the pneumatic chuck body 1 first drives four sets of moving claws 2 to move, thus using the clamping claws 4 to fix and hold the round tube. When using the clamping claws 4 to clamp the round tube, the positioning mechanism 6 can first complete the initial positioning and locking of the round tube, thus assisting in the positioning of the round tube when the clamping claws 4 are not clamping it. The position of the round tube can be rotated and adjusted. The position adjustment mechanism 5 can pull up and adjust the position of the positioning mechanism 6, thus facilitating the maintenance of the clamping claws 4. The position adjustment mechanism 5 can also adjust the pressure of the positioning mechanism 6, thus ensuring a more stable clamping of the round tube. The positioning mechanism 6 is slidably installed on the outside of the slide rod 10, and the spring 12 can provide compressive force to the positioning mechanism 6. Subsequently, when it is necessary to compress the spring 12, the threaded sleeve 11 is rotated to... It rotates along the outside of the threaded rod 9, which compresses the spring 12, thereby providing a greater squeezing force to the positioning mechanism 6. The spring 12 can also provide squeezing force to the slider 13, so that the pressure roller 15 can always be in contact with and positioned against the round tube. This way, even when the clamping claw 4 rises, the squeezing force of the spring 12 can still be used to keep the pressure roller 15 in contact with and positioned against the round tube, which facilitates the initial positioning of the round tube and allows the round tube to be rotated for position adjustment. When maintenance of the clamping claw 4 is required, the support frame 14 is pulled to move it upward along the slide rod 10. Then, the locking groove 17 on the protective plate 16 corresponds to the threaded groove 18, and then the fixing bolt 19 can pass through the locking groove 17 and threadedly connect with the threaded groove 18. This allows the support frame 14 and the pressure roller 15 to be raised, making it convenient for maintenance and replacement of the clamping claw 4.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A machining lathe chuck, comprising a pneumatic chuck body (1) and a positioning mechanism (6), wherein multiple sets of moving jaws (2) are fixedly mounted on the pneumatic chuck body (1), and a connecting seat (3) is fixedly connected to the bottom of each moving jaw (2), and a locking jaw (4) is fixedly connected to the bottom of the connecting seat (3) by multiple sets of screws, characterized in that: The bottom of the positioning mechanism (6) is always in contact with the round tube for positioning. A position adjustment mechanism (5) for adjusting the positioning pressure of the positioning mechanism (6) is provided on one side of the moving claw (2). A position locking mechanism (7) for adjusting the position of the positioning mechanism (6) is provided on the moving claw (2) and the positioning mechanism (6).

2. A lathe chuck for machining according to claim 1, characterized in that: The position adjustment mechanism (5) includes a fixed block (8), a threaded rod (9), a slide rod (10), a threaded sleeve (11), and a spring (12). Two sets of fixed blocks (8) are fixedly connected to one side of the moving claw (2). The bottom of one set of fixed blocks (8) is fixedly connected to a threaded rod (9). The bottom of the threaded rod (9) is fixedly connected to a slide rod (10). The outside of the slide rod (10) is slidably connected to a positioning mechanism (6). The outside of the threaded rod (9) is threadedly connected to a threaded sleeve (11). The bottom of the threaded sleeve (11) and the outside of the slide rod (10) is fixedly connected to a spring (12). The bottom of the spring (12) is fixedly connected to the positioning mechanism (6).

3. A lathe chuck for machining according to claim 2, characterized in that: The positioning mechanism (6) includes a slider (13), a support frame (14), and pressure rollers (15). The slider (13) is slidably connected to the outside of the slide rod (10). The bottom of the spring (12) is fixedly connected to the top of the slider (13). The support frame (14) is fixedly connected to the bottom of the slider (13). Two sets of pressure rollers (15) are rotatably connected to the support frame (14).

4. A lathe chuck for machining according to claim 3, characterized in that: The position locking mechanism (7) includes a protective plate (16), a locking groove (17), a threaded groove (18), and a fixing bolt (19). The protective plate (16) is fixedly connected to one side of the slider (13) and fits against the outer wall of the moving claw (2). The protective plate (16) has a locking groove (17) and the moving claw (2) has a threaded groove (18). The locking groove (17) is provided with a fixing bolt (19) that is threadedly connected to the threaded groove (18).

5. A lathe chuck for machining according to claim 4, characterized in that: The internal connection of the locking claw (4) is a rubber pad, and the rubber pad is provided with multiple sets of anti-slip protrusions.

6. A lathe chuck for machining according to claim 5, characterized in that: The pressure roller (15) is made of stainless steel.

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