Automatic centering two-way clamping universal chuck

Abstract

The utility model relates to numerical control processing technical field, concretely relates to a kind of automatic centering bidirectional clamping general chuck, including bearing disc, the bottom of bearing disc is provided with connecting barrel one, the bottom of connecting barrel one is provided with connecting barrel two, connecting barrel two with connecting barrel one rotation is connected, the inside of connecting barrel one is provided with telescopic cylinder body two, the inside of connecting barrel two is provided with telescopic cylinder body one.The utility model, by setting up pneumatic mechanism, can be stably clamped to device, and, will not be stuck by chip, can solve the product on existing market due to clamp cylinder chuck, chuck claw horn mouth, unstable clamping, not suitable for high-speed rotating clamping cutting on performance, poor sealing performance, dust easily stuck chuck claw, in the process of use, chuck claw failure condition is extremely easy to produce, reduce work efficiency, and, unstable when processing, will improve the probability of product processing failure problem.

Description

Technical Field

[0001] This utility model relates to the field of CNC machining technology, specifically to an automatic centering bidirectional clamping universal chuck. Background Technology

[0002] With the advancement of industrial automation and intelligent manufacturing, the demand for precision machining equipment is constantly increasing. Traditional manual or semi-automatic chucks have long loading and unloading times and require a lot of labor, which cannot meet the requirements of high-efficiency production. Therefore, more automated and intelligent chucks are needed to improve production efficiency and reduce labor costs.

[0003] Existing products on the market have unstable clamping due to their chuck type and flared jaws. They are also unsuitable for high-speed rotational clamping and cutting, have poor sealing performance, and are prone to dust and debris getting stuck in the jaws. During use, the jaws are very likely to fail, reducing work efficiency. Furthermore, the processing is not stable, which increases the probability of product processing failure.

[0004] Therefore, an automatic centering bidirectional clamping universal chuck is proposed to solve the problems mentioned above. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides an automatic centering bidirectional clamping universal chuck. By incorporating a pneumatic mechanism, it can stably clamp the device without being jammed by debris. This solves the problems of existing products on the market, which suffer from unstable clamping due to their chuck-type design, flared jaws, unsuitability for high-speed rotational clamping and cutting, poor sealing performance, easy jamming of the jaws by dust and debris, and frequent jaw failure during use, thus reducing work efficiency and increasing the probability of product processing failure due to instability.

[0006] To achieve the above objectives, this utility model provides the following technical solution: It includes a support plate, a connecting cylinder 1 at the bottom of the support plate, a connecting cylinder 2 at the bottom of the connecting cylinder 1, the connecting cylinder 2 being rotatably connected to the connecting cylinder 1, a telescopic cylinder 2 inside the connecting cylinder 1, a telescopic cylinder 1 inside the connecting cylinder 2, an air inlet 1 on the side of the connecting cylinder 2, a pneumatic mechanism on the support plate via the air inlet 1, and several clamping blocks above the support plate, with clamping components on the support plate via the clamping blocks.

[0007] The pneumatic mechanism includes an air passage 1 opened on one side of the air inlet, an air passage 2 opened above the air inlet 1, and a variable air passage 1 opened at the top of the air passage 2.

[0008] The clamping assembly includes a slider disposed below the clamping block, and a limit plate is disposed below the slider.

[0009] Preferably, the pneumatic mechanism further includes an air outlet one disposed on one side of the variable air passage, an L-shaped air passage disposed on the side of the air inlet two, an air passage three disposed below the air inlet two, a variable air passage two disposed on the side of the air passage three, and an air outlet two disposed on the side of the variable air passage two.

[0010] Preferably, the first air inlet is connected to the first air passage, the first air passage is connected to the top of the first telescopic cylinder, the first air inlet is connected to the second air passage, the second air passage is connected to the first variable air passage, and the first variable air passage is connected to the top of the second telescopic cylinder.

[0011] Preferably, the variable air passage one is connected to the air outlet one, the air inlet two is connected to the L-shaped air passage, the top of the L-shaped air passage is connected to the bottom of the telescopic cylinder two, the air inlet two is connected to the air passage three, the air passage three is connected to the air outlet two, the air passage three is connected to the variable air passage two, and the variable air passage two is connected to the bottom of the telescopic cylinder one.

[0012] Preferably, the clamping assembly further includes a collar 1 disposed inside the connecting cylinder 1, a connecting wall 1 disposed at the bottom of the collar 1, a collar 2 disposed inside the connecting cylinder 1, the collar 2 being located above the collar 1, and at least two inclined blocks disposed at the top of both the collar 2 and the collar 1, and a plurality of the inclined blocks being distributed in a circumferential array around the bearing plate, and a bolt disposed at the top of the clamping block.

[0013] Preferably, the bottom of the first collar is fixedly connected to the top of the first connecting wall, the side of the first connecting wall is fixedly connected to the side of the first telescopic cylinder, the side of the second collar is fixedly connected to the side of the second telescopic cylinder, and a plurality of the clamping blocks are arranged in a circumferential array around the bearing plate.

[0014] Preferably, the top of the inclined block extends into the limiting plate, the inclined block is slidably connected to the limiting plate, the slider is located inside the limiting plate, the slider is slidably connected to the limiting plate, the bottom of the bolt passes through the clamping block, the bolt is threadedly connected to the clamping block, the bottom of the bolt passes through the slider, and the bolt is threadedly connected to the slider.

[0015] Compared with the prior art, this utility model provides an automatic centering bidirectional clamping universal chuck, which has the following beneficial effects:

[0016] 1. When clamping the workpiece, inject gas into one of the common air inlets. Telescopic cylinder one and telescopic cylinder two will move downward, causing the inclined block to move downward. Multiple clamping blocks will move closer to each other to fix the workpiece. The fixing effect is good, and there are no gaps exposed to the outside. Debris will not enter the inside of the device, avoiding the situation where the clamping is affected by debris, thus improving the stability of the device.

[0017] 2. When clamping workpieces of different shapes, loosen the bolt to release the slider, remove the clamping block, slide the slider to the position, align the bottom of the clamping block with the slot on the top of the limiting plate, fix the clamping block and the slider, and adjust the position of the clamping block to clamp workpieces of different shapes, thereby improving the flexibility of the device. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic cross-sectional view of the catalytic downward pressure air passage of this utility model;

[0020] Figure 3 This is a schematic cross-sectional view of the upward air passage of this utility model.

[0021] Figure 4 This is a side sectional view of the structure of this utility model;

[0022] Figure 5 This is a partial cross-sectional structural diagram of the clamping assembly of this utility model;

[0023] Figure 6 This utility model Figure 2 Enlarged structural diagram of A in the middle;

[0024] Figure 7 This utility model Figure 3 Enlarged structural diagram of B in the middle;

[0025] Figure 8 This utility model Figure 5 A magnified schematic diagram of the structure of C.

[0026] In the diagram: 1. Bearing plate; 101. Connecting cylinder 2; 2. Connecting cylinder 1; 3. Air inlet 1; 4. Air inlet 2; 102. Air passage 1; 5. Air passage 2; 6. Variable air passage 1; 7. Air outlet 1; 8. Telescopic cylinder 1; 9. Telescopic cylinder 2; 10. L-shaped air passage; 11. Air passage 3; 12. Variable air passage 2; 103. Air outlet 2; 13. Connecting wall 1; 14. Collar 1; 15. Collar 2; 16. Inclined block; 17. Limiting plate; 18. Sliding block; 19. Clamping block; 20. Bolt. Detailed Implementation

[0027] 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.

[0028] Example:

[0029] Please see Figure 1 - Figure 8 An automatic centering bidirectional clamping universal chuck in this embodiment includes a carrier plate 1. A connecting cylinder 1 2 is provided at the bottom of the carrier plate 1. A connecting cylinder 2 101 is provided at the bottom of the connecting cylinder 1 2. The connecting cylinder 2 101 is rotatably connected to the connecting cylinder 1 2. A telescopic cylinder 2 9 is provided inside the connecting cylinder 1 2. A telescopic cylinder 1 8 is provided inside the connecting cylinder 2 101. An air inlet 3 and an air inlet 4 are provided on the side of the connecting cylinder 2 101. A pneumatic mechanism is provided on the carrier plate 1 through the air inlet 3. Several clamping blocks 19 are provided on the top of the carrier plate 1. A clamping assembly is provided on the carrier plate 1 through the clamping blocks 19.

[0030] The pneumatic mechanism includes an air passage 102 located on the side of the air inlet 3, an air passage 2 5 located above the air inlet 3, and a variable air passage 6 located at the top of the air passage 2 5.

[0031] The clamping assembly includes a slider 18 disposed below the clamping block 19, and a limit plate 17 disposed below the slider 18;

[0032] In the process of clamping the workpiece, firstly, gas is injected through air inlet 3. Then, the gas flows through air passage 102 and variable air passage 6, causing telescopic cylinders 9 and 8 to move downwards synchronously. Simultaneously, through the clamping assembly, collars 14 and 15 move downwards, bringing the four clamping blocks 19 closer together until the workpiece is clamped. The workpiece can then be processed. If rotational processing is required, connecting cylinders 2 and 101 can be rotated. The rotation between connecting cylinders 2 and 101 is achieved through a rotating bearing; details can be found here. Figure 4At this point, the workpiece can be processed, and the processing debris will not enter the connecting cylinder 1 2 or connecting cylinder 2 101, causing damage to the internal parts, thus improving the durability and service life of the device. At this point, when the workpiece is released, the gas input into the air inlet 1 3 is stopped, and the gas is input through the air inlet 2 4. At this point, under the action of the pneumatic mechanism, the telescopic cylinder 2 9 and the telescopic cylinder 1 8 will move down synchronously. At this point, the inclined block 16 will slide on the limiting plate 17, and the four clamping blocks 19 will move away from each other. At this point, the workpiece can be removed.

[0033] At this time, the workpiece is clamped and released, and the workpiece can rotate during processing. The debris generated during processing will not enter the connecting cylinder 1 2 and connecting cylinder 2 101, and the internal parts will not be affected by the debris. This avoids the clamping block 19 from failing to clamp, improves the working efficiency of the device, and extends the service life of the device. In addition, the clamping effect is stable, which improves the yield of workpiece processing.

[0034] The pneumatic mechanism also includes an air outlet 7 located on the side of the variable air passage 6, an L-shaped air passage 10 located on the side of the air inlet 4, an air passage 3 11 located below the air inlet 4, a variable air passage 2 12 located on the side of the air passage 3 11, and an air outlet 2 103 located on the side of the variable air passage 2 12.

[0035] Air inlet 3 is connected to air passage 102, air passage 102 is connected to the top of telescopic cylinder 8, air inlet 3 is connected to air passage 25, air passage 25 is connected to variable air passage 6, and variable air passage 6 is connected to the top of telescopic cylinder 29.

[0036] The variable air passage 16 is connected to the air outlet 17, the air inlet 2 4 is connected to the L-shaped air passage 10, the top of the L-shaped air passage 10 is connected to the bottom of the telescopic cylinder 2 9, the air inlet 2 4 is connected to the air passage 3 11, the air passage 3 11 is connected to the air outlet 2 103, the air passage 3 11 is connected to the variable air passage 2 12, and the variable air passage 2 12 is connected to the bottom of the telescopic cylinder 1 8.

[0037] Please refer to Figure 2 , Figure 3 , Figure 6 and Figure 7When clamping the workpiece, firstly, gas is injected through air inlet 3. At this time, the gas will enter the air passage 102 through air inlet 3. The gas will continue to move and enter the upper part of the telescopic cylinder 8. The gas will accumulate above the telescopic cylinder 8 until it pushes the telescopic cylinder 8 downward. At this time, when the gas enters the air passage 102 through air inlet 3, the gas will simultaneously enter the second air passage 5. Then, it will enter the variable air passage 6 through the second air passage 5. After that, the gas will continue to move through the second air passage 5 and enter the upper part of the telescopic cylinder 9. It will start to accumulate above the telescopic cylinder 9 and then press down, causing the telescopic cylinder 9 to move downward. At this time, the telescopic cylinder 8 and the telescopic cylinder 9 will move synchronously. At this time, the clamping is completed.

[0038] When releasing the workpiece from clamping, gas is injected through inlet 2 (4). The gas then enters the L-shaped air passage 10. Due to the shape of the L-shaped air passage 10, the gas moves within it and surges upwards. The top of the L-shaped air passage 10 then presses against the telescopic cylinder 2 (9), causing it to move upwards. Simultaneously, the gas enters air passage 3 (11) and moves through it, entering variable air passage 2 (12). Finally, the gas reaches the bottom of the telescopic cylinder 1 (8). At this point, the gas will begin to accumulate and push the telescopic cylinder 8 upward. At this time, the telescopic cylinder 8 and the telescopic cylinder 9 move upward synchronously, thus completing the release of the clamp. During gas injection, the outlet 7 and the outlet 103 will release excess gas to prevent excessive gas accumulation from damaging the inside of the device. Both the outlet 103 and the outlet 7 are composed of a channel and a vent valve. The vent valve is a well-known and mature technology in the art, so it will not be described in detail in this embodiment, nor will it be shown in detail in the accompanying drawings.

[0039] At this point, the workpiece is clamped and released, and the fixing effect is good. Furthermore, the synchronous opposing clamping makes the clamping effect even better. Moreover, the debris will not enter the inside of the device and affect the operation of the parts inside the device, thereby improving the working efficiency and stability of the device.

[0040] The clamping assembly also includes a collar 14 disposed inside the connecting cylinder 1 2. A connecting wall 13 is disposed at the bottom of the collar 14. A collar 2 15 is disposed inside the connecting cylinder 1 2. The collar 2 15 is located above the collar 14. At least two inclined blocks 16 are disposed at the top of both the collar 2 15 and the collar 14. Several inclined blocks 16 are arranged in a circumferential array around the bearing plate 1. A bolt 20 is disposed at the top of the clamping block 19.

[0041] The bottom of the collar 14 is fixedly connected to the top of the connecting wall 13, the side of the connecting wall 13 is fixedly connected to the side of the telescopic cylinder 8, the side of the collar 15 is fixedly connected to the side of the telescopic cylinder 9, and several clamping blocks 19 are arranged in a circular array around the bearing plate 1.

[0042] The top of the inclined block 16 extends into the limiting plate 17, and the inclined block 16 is slidably connected to the limiting plate 17. The slider 18 is located inside the limiting plate 17 and is slidably connected to the limiting plate 17. The bottom of the bolt 20 passes through the clamping block 19 and is threadedly connected to the clamping block 19. The bottom of the bolt 20 passes through the slider 18 and is threadedly connected to the slider 18.

[0043] Please refer to Figure 2 , Figure 4 , Figure 5 and Figure 8 When telescopic cylinder 8 and telescopic cylinder 9 move downwards synchronously, telescopic cylinder 8 will drive connecting wall 13 to move downwards, and connecting wall 13 will drive collar 14 to move downwards. At the same time, telescopic cylinder 9 will also drive collar 15 to move downwards. Simultaneously, the inclined blocks 16 on collar 15 and collar 14 will move downwards and slide on limiting plate 17. As the inclined blocks 16 move downwards, the limiting plate 17 will be pushed by the inclined blocks 16, and multiple limiting plates 17 will move closer to each other. At this time, with the multiple... As the limiting plate 17 approaches, the multiple clamping blocks 19 move closer together, securing the workpiece. When the telescopic cylinder 8 and telescopic cylinder 9 move upwards, the process reverses; the clamping blocks 19 move further apart, releasing the workpiece. If it is necessary to adjust the position of the clamping blocks 19 on the limiting plate 17, unscrew the bolt 20 to remove it from the slider 18, then pull the slider 18 to slide it within the limiting plate 17. Finally, align the bottom of the clamping block 19 with the slot at the top of the limiting plate 17. (See details below.) Figure 8 After aligning the fixed position on the clamping block 19 with the fixed position on the slider 18, the clamping block 19 is inserted, and the bolt 20 is tightened to fix the clamping block 19 and the slider 18. After that, the position of the clamping block 19 can be adjusted according to the different shapes of the workpiece to clamp workpieces of different shapes.

[0044] At this point, the workpiece is clamped, and workpieces of different shapes are also clamped. The clamping effect is good, the flexibility is high, and there is no need to equip spare jaws to deal with workpieces of different shapes, which reduces changeover time and improves work efficiency.

[0045] The installation, connection, or setting methods disclosed in this embodiment are all common mechanical connection methods. As long as they can achieve their beneficial effects, they can be implemented. Therefore, this embodiment will not elaborate on their specific structural composition and working principle.

[0046] 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 universal chuck with automatic centering and bidirectional clamping, characterized in that, The system includes a support plate (1), a connecting cylinder 1 (2) at the bottom of the support plate (1), a connecting cylinder 2 (101) at the bottom of the connecting cylinder 1 (2), the connecting cylinder 2 (101) being rotatably connected to the connecting cylinder 1 (2), a telescopic cylinder 2 (9) inside the connecting cylinder 1 (2), a telescopic cylinder 1 (8) inside the connecting cylinder 2 (101), an air inlet 1 (3) and an air inlet 2 (4) on the side of the connecting cylinder 2 (101), a pneumatic mechanism on the support plate (1) through the air inlet 1 (3), and several clamping blocks (19) on the top of the support plate (1), and a clamping assembly on the support plate (1) through the clamping blocks (19). The pneumatic mechanism includes an air passage 1 (102) opened on the side of the air inlet 1 (3), an air passage 2 (5) opened above the air inlet 1 (3), and a variable air passage 1 (6) opened at the top of the air passage 2 (5). The clamping assembly includes a slider (18) disposed below the clamping block (19), and a limit plate (17) is disposed below the slider (18).

2. The automatic centering bidirectional clamping universal chuck according to claim 1, characterized in that, The pneumatic mechanism also includes an air outlet 1 (7) disposed on the side of the variable air passage 1 (6), an L-shaped air passage (10) disposed on the side of the air inlet 2 (4), an air passage 3 (11) disposed below the air inlet 2 (4), a variable air passage 2 (12) disposed on the side of the air passage 3 (11), and an air outlet 2 (103) disposed on the side of the variable air passage 2 (12).

3. The automatic centering bidirectional clamping universal chuck according to claim 2, characterized in that, The first air inlet (3) is connected to the first air passage (102), the first air passage (102) is connected to the top of the first telescopic cylinder (8), the first air inlet (3) is connected to the second air passage (5), the second air passage (5) is connected to the first variable air passage (6), and the first variable air passage (6) is connected to the top of the second telescopic cylinder (9).

4. The automatic centering bidirectional clamping universal chuck according to claim 3, characterized in that, The variable air passage one (6) is connected to the air outlet one (7), the air inlet two (4) is connected to the L-shaped air passage (10), the top of the L-shaped air passage (10) is connected to the bottom of the telescopic cylinder two (9), the air inlet two (4) is connected to the air passage three (11), the air passage three (11) is connected to the air outlet two (103), the air passage three (11) is connected to the variable air passage two (12), and the variable air passage two (12) is connected to the bottom of the telescopic cylinder one (8).

5. The automatic centering bidirectional clamping universal chuck according to claim 1, characterized in that, The clamping assembly also includes a collar one (14) disposed inside the connecting cylinder one (2). A connecting wall one (13) is disposed at the bottom of the collar one (14). A collar two (15) is disposed inside the connecting cylinder one (2). The collar two (15) is located above the collar one (14). At least two inclined blocks (16) are disposed at the top of both the collar two (15) and the collar one (14). Several inclined blocks (16) are arranged in a circular array around the bearing plate (1). A bolt (20) is disposed at the top of the clamping block (19).

6. The automatic centering bidirectional clamping universal chuck according to claim 5, characterized in that, The bottom of the first collar (14) is fixedly connected to the top of the first connecting wall (13), the side of the first connecting wall (13) is fixedly connected to the side of the first telescopic cylinder (8), the side of the second collar (15) is fixedly connected to the side of the second telescopic cylinder (9), and several clamping blocks (19) are arranged in a circular array around the bearing plate (1).

7. The automatic centering bidirectional clamping universal chuck according to claim 6, characterized in that, The top of the inclined block (16) extends into the limiting plate (17), the inclined block (16) is slidably connected to the limiting plate (17), the slider (18) is located inside the limiting plate (17), the slider (18) is slidably connected to the limiting plate (17), the bottom of the bolt (20) passes through the clamping block (19), the bolt (20) is threadedly connected to the clamping block (19), the bottom of the bolt (20) passes through the slider (18), the bolt (20) is threadedly connected to the slider (18).

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