Pneumatic turntable

Abstract

The utility model discloses a pneumatic turntable which comprises a mounting base, a rotatable clamping chuck is mounted on the mounting base, and a thrust ball bearing is arranged between the mounting base and the clamping chuck; a rotary driving mechanism for driving the clamping chuck to rotate is mounted on the mounting base; the rotary driving mechanism comprises a motor mounted on the mounting base, a chain wheel is mounted on the motor, an annular chain is arranged on the peripheral side of the bottom of the clamping chuck, and the chain wheel is in transmission connection with the chain; the pneumatic rotary table is simple in structure and convenient to operate, the chain wheel and chain driving mechanism is arranged between the mounting base and the clamping chuck, the rotating stability of the clamping chuck is guaranteed, meanwhile, the thrust ball bearing is arranged between the mounting base and the clamping chuck, the axial pressure bearing load is reduced, abrasion of the pneumatic rotary table is reduced, and the service life of the pneumatic rotary table is prolonged. The rotating smoothness of the pneumatic rotating disc is improved, and the clamping chuck clamps the workpiece to rotate more smoothly.

Description

Technical Field

[0001] This utility model relates to the field of machine tool processing equipment technology, specifically to a pneumatic rotary table. Background Technology

[0002] A pneumatic rotary table, also known as an indexing table, is a machine tool accessory that clamps a workpiece on a chuck or between two centers, allowing it to rotate, index, and position. It's commonly used in machining processes where equal division is required. However, the structure of currently used indexing tables is quite complex, making operation relatively cumbersome. Furthermore, traditional indexing tables, after prolonged use, suffer significant wear, which can lead to loosening of the pneumatic rotary table's fixation or uneven rotation, potentially causing it to fall off and damage the pneumatic rotary table. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a pneumatic turntable that can reduce wear during operation and improve the smoothness of rotation.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows.

[0005] A pneumatic turntable includes a mounting base, on which a rotatable clamping chuck is mounted, and a thrust ball bearing is provided between the mounting base and the clamping chuck; a rotary drive mechanism for driving the clamping chuck to rotate is mounted on the mounting base.

[0006] The aforementioned pneumatic turntable, wherein the rotary drive mechanism includes a motor mounted on a mounting base, a sprocket mounted on the motor, and an annular chain arranged on the bottom periphery of the clamping chuck, the sprocket and the annular chain being connected in a transmission.

[0007] The aforementioned pneumatic turntable includes a circular turntable with four clamping blocks slidably disposed on it. An adjustment mechanism is provided at the bottom of the circular turntable to drive the clamping blocks to move along the slide grooves on the circular turntable.

[0008] The aforementioned pneumatic turntable, wherein the adjustment mechanism includes a connecting rod hinged to the bottom of the clamping block, the other end of the connecting rod being hinged to a connecting rod seat located at the center of the bottom of the circular turntable, and the bottom of a set of clamping blocks arranged opposite to each other being connected to the movable ends of a set of cylinders located at the bottom of the circular turntable.

[0009] The pneumatic turntable described above also has a connecting seat at the bottom of the circular turntable, and the connecting seat has a slot on its periphery that is slidably fitted to the moving end of the cylinder.

[0010] The bottom of the connecting seat of the aforementioned pneumatic turntable is provided with an annular groove that rotatably connects with the balls on the thrust ball bearing.

[0011] Due to the adoption of the above technical solutions, the technological progress achieved by this utility model is as follows.

[0012] This utility model provides a pneumatic turntable with a simple structure and convenient operation. By setting a sprocket and chain drive mechanism between the mounting base and the clamping chuck, the stability of the clamping chuck's rotation is ensured. At the same time, a thrust ball bearing is set between the mounting base and the clamping chuck, which reduces the axial pressure load, reduces the wear of the pneumatic turntable, and improves the smoothness of the pneumatic turntable's rotation, making the clamping chuck clamp the workpiece more smoothly. Attached Figure Description

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

[0014] Figure 2 This is a bottom view of the present invention.

[0015] The components are: 1. mounting base, 2. circular turntable, 3. clamping block, 4. connecting seat, 5. ring chain, 6. motor, 7. sprocket, 8. thrust ball bearing, 9. slide groove, 10. connecting rod, 11. cylinder, 12. connecting rod seat. Detailed Implementation

[0016] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0017] Pneumatic turntable, such as Figures 1 to 2 As shown, it includes a mounting base 1, on which a rotatable clamping chuck is mounted. A thrust ball bearing 8 is provided between the mounting base 1 and the clamping chuck. The thrust ball bearing 8 can withstand axial loads and reduce wear during axial bearing.

[0018] The mounting base 1 is equipped with a rotary drive mechanism that drives the chuck to rotate. The rotary drive mechanism includes a motor 6 mounted on the mounting base 1, a sprocket 7 mounted on the motor 6, and an annular chain 5 arranged on the bottom periphery of the chuck. The sprocket 7 and the annular chain 5 are connected in a transmission.

[0019] The clamping chuck includes a circular turntable 2, on which four clamping blocks 3 are slidably arranged. At the bottom of the circular turntable 2, there is an adjustment mechanism that drives the clamping blocks 3 to move along the slide groove 9 on the circular turntable 2.

[0020] The adjustment mechanism includes a connecting rod 10 hinged to the bottom of the clamping block 3, and the other end of the connecting rod 10 hinged to a connecting rod seat 12 located at the center of the bottom of the circular turntable 2. The bottom of a set of clamping blocks 3 arranged opposite to each other is connected to the movable end of a set of cylinders 11 located at the bottom of the circular turntable 2.

[0021] The bottom of the circular turntable 2 is also equipped with a connecting seat 4, and the ring chain 5 is located at the bottom of the outer wall of the connecting seat 4.

[0022] The connecting seat has slots on its four sides that are slidably fitted to the moving end of the cylinder 11.

[0023] The bottom of the connecting seat 4 is provided with an annular groove that rotatably connects with the balls on the thrust ball bearing 8.

[0024] This utility model provides a pneumatic turntable with a simple structure and convenient operation. By setting a sprocket and chain drive mechanism between the mounting base and the clamping chuck, the stability of the clamping chuck's rotation is ensured. At the same time, a thrust ball bearing is set between the mounting base and the clamping chuck, which reduces the axial pressure load, reduces the wear of the pneumatic turntable, and improves the smoothness of the pneumatic turntable's rotation, making the clamping chuck clamp the workpiece more smoothly.

Claims

1. A pneumatic rotary table, characterized in that: The system includes a mounting base (1), on which a rotatable clamping chuck is mounted, and a thrust ball bearing (8) is provided between the mounting base (1) and the clamping chuck; a rotary drive mechanism for driving the clamping chuck to rotate is mounted on the mounting base (1); the rotary drive mechanism includes a motor (6) mounted on the mounting base (1), a sprocket (7) mounted on the motor (6), and an annular chain (5) provided on the bottom periphery of the clamping chuck, with the sprocket (7) and the annular chain (5) being connected by a transmission; the clamping chuck includes a circular rotating... The disc (2) has four clamping blocks (3) slidably arranged on the circular turntable (2). The bottom of the circular turntable (2) is provided with an adjustment mechanism that drives the clamping blocks (3) to move along the slide groove (9) on the circular turntable (2). The adjustment mechanism includes a connecting rod (10) hinged to the bottom of the clamping block (3). The other end of the connecting rod (10) is hinged to the connecting rod seat (12) located at the center of the bottom of the circular turntable (2). The bottom of a set of clamping blocks (3) arranged opposite to each other is connected to the movable end of a set of cylinders (11) located at the bottom of the circular turntable (2).

2. The pneumatic rotary table according to claim 1, characterized in that: The bottom of the circular turntable (2) is also provided with a connecting seat (4), and the connecting seat (4) has a slot on its periphery for sliding fitting with the moving end of the cylinder (11).

3. The pneumatic rotary table according to claim 2, characterized in that: The bottom of the connecting seat (4) is provided with an annular groove that is rotatably connected to the balls on the thrust ball bearing (8).

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