Machine tool chuck positioning device

Abstract

The utility model provides a machine tool chuck positioning device, which belongs to the technical field of chuck positioning, and comprises a shell, the outer wall of the shell is slidably connected with uniformly distributed movable clamping jaws, the inner walls of the movable clamping jaws are fixedly connected with uniformly distributed limiting plates, the outer wall of the shell is rotatably connected with uniformly distributed gyro gears, and the gyro gears are rotatably connected with the shell. The movable clamping jaw is connected with a clamping jaw body through a quick connecting assembly, the outer wall of the shell is fixedly connected with evenly-distributed connecting frames through bolts, and the limiting anti-shaking assembly comprises a concave frame fixedly connected to the top walls of the connecting frames. According to the utility model, the movable clamping jaw is connected with the clamping jaw body through the quick connecting assembly, so that when a workpiece is replaced and clamped, an operator can quickly replace the adaptive clamping jaw body without complicated operation and long-time adjustment, the clamping time is greatly shortened, and the machining efficiency and universality of a machine tool are remarkably improved; and diversified production requirements are met.

Description

Technical Field

[0001] This utility model relates to the field of chuck positioning technology, and more specifically, to a machine tool chuck positioning device. Background Technology

[0002] A machine tool chuck is a device mounted on the machine tool spindle for clamping and positioning workpieces. It consists of a chuck body, jaws, etc. The workpiece is clamped and released by opening and closing the jaws. Its main purpose is to accurately position the workpiece in the required machining position, while generating sufficient clamping force to resist external forces such as cutting forces, prevent workpiece displacement and vibration, ensure machining accuracy and surface quality, and can also be used in conjunction with automated equipment to realize automatic workpiece loading, unloading and clamping, and improve production efficiency.

[0003] Traditional machine tool chucks have several problems: 1. The connection between the jaws and the jaw body of most chucks is complex, requiring a lot of time for disassembly and installation during replacement, which reduces the machining efficiency of the machine tool and limits the flexibility of production; 2. During operation, the jaws of existing chucks are prone to shaking due to factors such as cutting forces. This not only leads to unstable workpiece clamping but also significantly reduces machining accuracy, increases defective products, and raises production costs. Utility Model Content

[0004] The purpose of this invention is to provide a machine tool chuck positioning device to solve the problems mentioned in the background art.

[0005] To achieve the above-mentioned objectives, this utility model provides the following technical solution:

[0006] A machine tool chuck positioning device includes a housing, with evenly distributed movable jaws slidably connected to the outer wall of the housing, evenly distributed limiting plates fixedly connected to the inner wall of the movable jaws, evenly distributed gyroscope gears rotatably connected to the outer wall of the housing, jaw bodies connected to the movable jaws via quick-connect components, and evenly distributed connecting frames fixedly connected to the outer wall of the housing by bolts. The device also includes:

[0007] The limiting and anti-swaying component includes a concave frame fixedly connected to the top wall of the connecting frame. A bidirectional screw is rotatably connected to the outer wall of the concave frame. A symmetrically distributed linkage disc is threaded to the outer wall of the bidirectional screw. A uniformly distributed locking block is fixedly connected to the outer wall of the linkage disc. A barbed plate is slidably connected between the symmetrical locking blocks, and the barbed plate is fixedly connected to the movable locking claw.

[0008] As a preferred technical solution of this application, the quick connection assembly includes a positioning block slidably connected to the outer wall of the claw body, a hollow sleeve fixedly connected to the outer wall of the positioning block, an inverted cone block fixedly connected to the end of the hollow sleeve away from the positioning block, and the top wall of the inverted cone block abutting against the outer wall of the limiting plate, a pressing block slidably connected to the outer wall of the hollow sleeve, a push rod fixedly connected to the top wall of the pressing block, and the push rod slidably connected to the positioning block, and a strong tension spring sleeved on the outer wall of the push rod.

[0009] As a preferred technical solution of this application, the strong tension spring is fixedly connected to the extrusion block, and the end of the strong tension spring away from the extrusion block is fixedly connected to the positioning block.

[0010] As a preferred technical solution of this application, the inner wall of the housing is rotatably connected to a toothed disc, and the outer wall of the toothed disc is meshed with a gyro gear, and the outer wall of the toothed disc is meshed with a movable pawl.

[0011] As a preferred technical solution of this application, the outer wall of the connecting frame is fixedly connected with symmetrically distributed positioning plates, and the outer wall of the positioning plates abuts against the outer wall of the shell.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] In the scheme of this application:

[0014] 1. By connecting the movable jaws to the jaw body via a quick-connect assembly, operators can quickly replace the appropriate jaw body when changing workpiece clamping, eliminating the need for complex operations and lengthy adjustments. This significantly shortens clamping time, greatly improves the machining efficiency and versatility of the machine tool, meets diverse production needs, and solves the problem that in most existing chucks, the connection between the jaws and jaw body is complex, requiring a lot of time for disassembly and installation during replacement, which reduces the machining efficiency of the machine tool and limits production flexibility.

[0015] 2. The limit and anti-shake components effectively suppress the shaking of the movable jaws during operation. The stability of the movable jaws directly affects the reliability of workpiece clamping during machine tool processing. Reducing workpiece displacement and vibration caused by jaw shaking ensures workpiece machining accuracy and surface quality, lowers the defect rate, and solves the problem in existing chucks where jaws easily shake due to cutting forces and other factors during operation. This not only leads to unstable workpiece clamping but also significantly reduces machining accuracy, increases defective output, and raises production costs. Attached Figure Description

[0016] Figure 1 A schematic diagram of the overall structure of the machine tool chuck positioning device provided in this application;

[0017] Figure 2 A schematic diagram of the chuck block structure of the machine tool chuck positioning device provided in this application;

[0018] Figure 3 A schematic diagram of the internal structure of the housing of the machine tool chuck positioning device provided in this application;

[0019] Figure 4 A schematic diagram of the internal structure of the movable jaw of the machine tool chuck positioning device provided in this application;

[0020] Figure 5 A schematic diagram of the strong tension spring portion of the machine tool chuck positioning device provided in this application.

[0021] The image shows:

[0022] 1. Housing; 2. Movable claw; 3. Claw body; 4. Barbed plate; 5. Connecting frame; 6. Positioning plate; 7. Concave frame; 8. Bidirectional screw; 9. Linkage plate; 10. Locking block; 11. Gyroscope gear; 12. Gear ring; 13. Push rod; 14. Extrusion block; 15. Limiting plate; 16. Inverted cone block; 17. Hollow sleeve; 18. Positioning block; 19. Strong tension spring. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model.

[0024] like Figure 1-5 As shown, this embodiment proposes a machine tool chuck positioning device, including a housing 1, with evenly distributed movable jaws 2 slidably connected to the outer wall of the housing 1, evenly distributed limiting plates 15 fixedly connected to the inner wall of the movable jaws 2, evenly distributed gyroscope gears 11 rotatably connected to the outer wall of the housing 1, jaw bodies 3 connected to the movable jaws 2 via quick-connect components, and evenly distributed connecting frames 5 fixedly connected to the outer wall of the housing 1 via bolts, and further including:

[0025] The limiting and anti-slip component includes a concave frame 7 fixedly connected to the top wall of the connecting frame 5. A bidirectional screw 8 is rotatably connected to the outer wall of the concave frame 7. A symmetrically distributed linkage disc 9 is threadedly connected to the outer wall of the bidirectional screw 8. A uniformly distributed locking block 10 is fixedly connected to the outer wall of the linkage disc 9. A barb plate 4 is slidably connected between the symmetrical locking blocks 10, and the barb plate 4 is fixedly connected to the movable claw 2. When the bidirectional screw 8 is rotated, the bidirectional screw 8 drives the linkage disc 9 threadedly connected to the outer wall to move towards or away from each other. The locking blocks 10 on the linkage disc 9 move accordingly. The locking blocks 10 slide into and squeeze the barb plate 4. The barbs on the upper and lower sides of the barb plate 4 are in opposite directions, which can effectively realize the limiting effect of the locking blocks 10 on the barb plate 4 and prevent the movable claw 2 from shaking.

[0026] like Figure 4-5 As shown, in a preferred embodiment, based on the above method, the quick-connect assembly further includes a positioning block 18 slidably connected to the outer wall of the claw body 3. A hollow sleeve 17 is fixedly connected to the outer wall of the positioning block 18. An inverted cone block 16 is fixedly connected to the end of the hollow sleeve 17 away from the positioning block 18, and the top wall of the inverted cone block 16 abuts against the outer wall of the limiting plate 15. A pressing block 14 is slidably connected to the outer wall of the hollow sleeve 17. A push rod 13 is fixedly connected to the top wall of the pressing block 14, and the push rod 13 is slidably connected to the positioning block 18. The wall sleeve is equipped with a strong tension spring 19. When the claw body 3 is brought close to the movable claw 2, the top wall of the inverted cone block 16 abuts against the outer wall of the limiting plate 15. The inverted cone block 16 presses against the limiting plate 15, causing the limiting plate 15 to slide outward. When the limiting plate 15 is engaged with the top of the inverted cone block 16, the limiting plate 15 abuts against the inverted cone block 16, and the positioning block 18 abuts against the claw body 3, thus completing the limiting. If disassembly is required, simply press the push rod 13 and drive the squeezing block 14 to squeeze and drive the limiting plate 15 to move outward, thereby pulling the claw body 3.

[0027] like Figure 5 As shown, in a preferred embodiment, based on the above method, the strong tension spring 19 is further fixedly connected to the extrusion block 14, and the end of the strong tension spring 19 away from the extrusion block 14 is fixedly connected to the positioning block 18. Under the tension of the strong tension spring 19, the extrusion block 14 can automatically return to its original position when it loses its thrust.

[0028] like Figure 3 As shown, in a preferred embodiment, based on the above method, the inner wall of the housing 1 is further rotatably connected to a toothed disc 12, and the outer wall of the toothed disc 12 is meshed with a gyroscope gear 11. The outer wall of the toothed disc 12 is meshed with a movable pawl 2. The toothed disc 12 is rotated by the meshing of the gyroscope gear 11, thereby driving the movable pawl 2 to slide inside the housing 1.

[0029] like Figure 1As shown, in a preferred embodiment, based on the above method, the outer wall of the connecting frame 5 is further fixedly connected with symmetrically distributed positioning plates 6, and the outer wall of the positioning plates 6 abuts against the outer wall of the housing 1. The positioning plates 6 further strengthen the connection between the connecting frame 5 and the housing 1 and prevent the connecting frame 5 from shaking.

[0030] Specifically, when using the machine tool chuck positioning device: rotating the bidirectional screw 8 causes the linkage disc 9, which is threaded to the outer wall, to move in opposite directions. The locking block 10 on the linkage disc 9 moves accordingly, sliding into and pressing against the barb plate 4. The barbs on the upper and lower sides of the barb plate 4 are in opposite directions, effectively limiting the locking block 10's position on the barb plate 4 and preventing the movable jaw 2 from shaking. Moving the jaw body 3 close to the movable jaw 2 causes the top wall of the inverted cone block 16 to abut against the outer wall of the limiting plate 15. The inverted cone block 16 presses against the limiting plate 15, causing the limiting plate 15 to slide outward. When the limiting plate 15 is engaged with the top of the inverted cone block 16, the limiting plate 15 and the inverted cone block 16 abut against each other, and the positioning block 18 abuts against the claw body 3, thus completing the limiting. If disassembly is required, simply press the push rod 13 and drive the pressing block 14 to press and drive the limiting plate 15 to move outward, thereby pulling the claw body 3. Under the pulling force of the strong tension spring 19, the pressing block 14 can automatically return to its original position when the pushing force is lost.

[0031] The above embodiments are only used to illustrate the present utility model and are not intended to limit the technical solutions described in the present utility model. Although the present utility model has been described in detail with reference to the above embodiments, the present utility model is not limited to the specific embodiments described above. Therefore, any modifications or equivalent substitutions to the present utility model, and all technical solutions and improvements that do not depart from the spirit and scope of the invention, are covered within the scope of the claims of the present utility model.

Claims

1. A machine tool chuck positioning device comprising a housing (1), characterized in that, The outer wall of the housing (1) is slidably connected with evenly distributed movable claws (2), the inner wall of the movable claws (2) is fixedly connected with evenly distributed limiting plates (15), the outer wall of the housing (1) is rotatably connected with evenly distributed gyroscope gears (11), the movable claws (2) are connected to claw bodies (3) through quick-connect components, and the outer wall of the housing (1) is fixedly connected with evenly distributed connecting frames (5) by bolts, and also includes: The limiting and anti-swaying component includes a concave frame (7) fixedly connected to the top wall of the connecting frame (5), a bidirectional screw (8) rotatably connected to the outer wall of the concave frame (7), a symmetrically distributed linkage disc (9) threadedly connected to the outer wall of the bidirectional screw (8), a uniformly distributed locking block (10) fixedly connected to the outer wall of the linkage disc (9), a barb plate (4) slidably connected between the symmetrical locking blocks (10), and the barb plate (4) is fixedly connected to the movable locking claw (2).

2. A machine tool chuck positioning device according to claim 1, wherein The quick-connect assembly includes a positioning block (18) slidably connected to the outer wall of the claw body (3). A hollow sleeve (17) is fixedly connected to the outer wall of the positioning block (18). An inverted cone block (16) is fixedly connected to one end of the hollow sleeve (17) away from the positioning block (18). The top wall of the inverted cone block (16) abuts against the outer wall of the limiting plate (15). A pressing block (14) is slidably connected to the outer wall of the hollow sleeve (17). A push rod (13) is fixedly connected to the top wall of the pressing block (14). The push rod (13) is slidably connected to the positioning block (18). A strong tension spring (19) is sleeved on the outer wall of the push rod (13).

3. A machine tool chuck positioning device according to claim 2, wherein The strong tension spring (19) is fixedly connected to the extrusion block (14), and the end of the strong tension spring (19) away from the extrusion block (14) is fixedly connected to the positioning block (18).

4. A machine tool chuck positioning apparatus according to claim 1, wherein The inner wall of the housing (1) is rotatably connected to a toothed disc (12), and the outer wall of the toothed disc (12) is meshed with a gyroscope gear (11). The outer wall of the toothed disc (12) is meshed with a movable pawl (2).

5. A machine tool chuck positioning apparatus according to claim 1, wherein The outer wall of the connecting frame (5) is fixedly connected with symmetrically distributed positioning plates (6), and the outer wall of the positioning plates (6) abuts against the outer wall of the shell (1).

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