Pneumatic rotary table mechanism for clamping, fixing and rotating ball head cylinder

Abstract

The invention discloses a pneumatic turntable mechanism for clamping, fixing and rotating a bulb cylinder. The pneumatic turntable mechanism comprises a fixed base, a fixed frame plate is arranged above the fixed base, and a rotary base is arranged above the fixed frame plate; wherein the fixing frame plate is used for fixing the sliding ring bottom plate, the sliding ring bottom plate is used for fixing the bottom of a pneumatic sliding ring, and the rotating base is used for fixing the top of the pneumatic sliding ring; rotary support plates are distributed on the rotary base, a rotary frame plate is fixed on the rotary support plates, and a clamping bent claw driven by a double-shaft cylinder is arranged on the rotary frame plate; an air source pipeline of the double-shaft air cylinder penetrates through a gap between the rotating base and the rotating frame plate to be connected to a first air inlet and a first air outlet in the end face of the upper half portion of the pneumatic sliding ring. And a second air inlet and a second air outlet in the cylindrical surface of the lower half part of the pneumatic sliding ring are used for being communicated with an air source. According to the rotary table, the ball head cylinder can be clamped, fixed and rotated in a pneumatic mode, and meanwhile, an air source pipeline of the air cylinder cannot generate pipeline rotation and winding when the rotary table works through the pneumatic sliding ring.

Description

Technical Field

[0001] This invention relates to pneumatic turntable mechanisms, specifically to a pneumatic turntable mechanism for clamping, fixing, and rotating a ball-head cylinder. Background Technology

[0002] In most industrial applications, the primary requirements are simply clamping and fixing workpieces or rotating workpieces with self-locking mechanisms. When clamping and rotating typical ball-head cylinders, motor-driven mechanisms are commonly used. Electric rotary tables equipped with electric slip ring mechanisms enable rotation without affecting the wiring harness. However, in special industrial settings, such as explosion-proof environments, electric mechanisms are prohibited for safety reasons, necessitating the use of pneumatic mechanisms for clamping, fixing, and rotation. However, clamping requires a clamping cylinder powered by an air supply, while rotation requires a pneumatic motor powered by an air supply. The air supply lines of the clamping cylinder rotate with the rotary table, causing entanglement in the air supply lines and making it impossible to simultaneously meet the clamping, fixing, and rotation requirements. Summary of the Invention

[0003] The purpose of this invention is to provide a pneumatic turntable mechanism for clamping and fixing a ball-shaped column, so that the pneumatic mechanism will not cause pipe rotation and entanglement when the pneumatic motor drives the turntable to work through the pneumatic slip ring.

[0004] To achieve the above objectives, the present invention employs the following technical solution: A pneumatic rotary table mechanism for clamping, fixing, and rotating a ball-shaped cylinder includes a fixed base; a fixed frame plate is disposed above the fixed base, and a rotating base is disposed above the fixed frame plate; wherein, the fixed frame plate is used to fix the bottom plate of a slip ring, the bottom plate of the slip ring is used to fix the bottom of the pneumatic slip ring, and the rotating base is used to fix the top of the pneumatic slip ring; rotating support plates are distributed on the rotating base, the rotating frame plate is fixed on the rotating support plates, and clamping claws driven by a dual-axis cylinder are disposed on the rotating frame plate; the air supply pipeline of the dual-axis cylinder passes through the gap between the rotating base and the rotating frame plate and connects to the first air inlet and the first air outlet on the upper half end face of the pneumatic slip ring; while the second air inlet and the second air outlet on the lower half cylindrical surface of the pneumatic slip ring are used to connect to the air supply.

[0005] Furthermore, the fixed frame plate is mounted above the fixed base via multiple fixed support shafts; the bottom of the fixed base is fixed to the workbench surface.

[0006] Furthermore, a first through hole for the pneumatic slip ring to pass through is provided at the center of the fixed frame plate, and the slip ring base plate is located below the first through hole and connected to the fixed frame plate; the pneumatic slip ring is fixed above the slip ring base plate and fixed to the middle of the rotating base, and multiple rotating support plates are evenly distributed around the center on the upper surface of the rotating base.

[0007] Furthermore, the inner ends of the upper surface of all rotating support plates are machined into bevels, while the remaining parts are flat; bottom rubber pads are provided on the bevels; a rotating frame plate with a second through hole at its center is coaxially provided above the rotating base, and the rotating frame plate is fixed on the flat surface of the rotating support plates, such that the beveled parts of all rotating support plates are located directly below the second through hole; when clamping the ball head column, the end of the ball head column passes through the second through hole on the rotating frame plate and contacts and is supported by the bottom rubber pad on the bevel.

[0008] Furthermore, the pneumatic slip ring is divided into upper and lower parts, which are separated by a central annular groove. The upper part of the pneumatic slip ring is fixed to the rotating base, and the lower part is fixed to the slip ring base plate. The end face of the upper part of the pneumatic slip ring is located above the rotating base and is provided with the first air inlet and the first air outlet for connection with the dual-axis cylinder to achieve clamping and fixing action. The cylindrical surface of the lower part of the pneumatic slip ring is provided with the second air inlet and the second air outlet connected to the air source, so that the upper part of the pneumatic slip ring rotates with the rotating base during rotational motion, while the lower part of the pneumatic slip ring does not rotate.

[0009] Furthermore, multiple dual-axis cylinders are distributed on the circumference of the upper surface of the rotating frame plate. Each dual-axis cylinder is equipped with a clamping claw at its output end. The clamping claw can move radially along the rotating frame plate. The clamping surface of the clamping claw is an arc-shaped surface, and a clamping pad is arranged on the clamping surface. All the clamping claws together form a circular structure, which is used to clamp the ball head cylinder under the drive of the dual-axis cylinder.

[0010] Furthermore, a pneumatic motor is fixed at the lower part of the fixed frame plate. The output end of the pneumatic motor passes through the upper surface of the fixed frame plate and is mounted with a cylindrical gear through a thrust bearing. The cylindrical gear is connected to the rotating base through a rotating shaft. A ring-shaped slewing bearing is installed at the bottom of the rotating base, and the outer ring gear of the slewing bearing meshes with the cylindrical gear.

[0011] Furthermore, after the pneumatic motor is connected to the air source, it drives the cylindrical gear, which in turn drives the slewing bearing and the rotating base connected to it to rotate; the air source pipeline of the dual-shaft cylinder rotates synchronously with the pneumatic turntable mechanism; the upper half of the pneumatic slip ring is connected to the rotating base, and the lower half is connected to the slip ring base plate, which is connected to the fixed frame plate. When rotating, the upper half of the pneumatic slip ring rotates synchronously with the rotating base, while the lower half remains stationary with the slip ring base plate, so the air source pipeline will not rotate or become entangled.

[0012] A processing device comprising the pneumatic turntable mechanism for clamping and fixing the ball-head cylinder.

[0013] A processing production line comprising the processing equipment.

[0014] Compared with the prior art, the present invention has the following technical features: 1. In this invention, the pneumatic clamping and fixing device and the pneumatic rotating device work together to give full play to the advantages of pneumatic explosion-proof, and realize the integration of clamping, fixing and rotating functions.

[0015] 2. In this invention, a pneumatic slip ring is used to ensure that the air supply pipeline of the pneumatic clamping and fixing device can rotate synchronously with the rotating device without entanglement.

[0016] 3. In the clamping and fixing device of the present invention, the rotating support plate is designed with a certain slope, which can adapt to the ball head column of a certain size. The bottom rubber pad and the clamping claw are respectively pasted on the contact surface with the ball head column, which can reduce the clamping and fixing damage to the ball head column.

[0017] 4. In this invention, the air source pressure of the pneumatic motor can be adjusted by a pressure regulating valve to achieve different speeds, and the air source pressure of the dual-shaft cylinder can be adjusted by a pressure regulating valve to achieve different clamping forces. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the pneumatic turntable mechanism of the present invention; Figure 2 This is a front view of the overall structure of the pneumatic turntable mechanism of the present invention; Figure 3 This is an internal transmission view of the overall structure of the pneumatic turntable mechanism of the present invention; Figure 4 This is a structural diagram of the upper part of the pneumatic turntable mechanism of the present invention, which includes the rotating base and the rotating support plate. Figure 5 This is a structural diagram showing the lower half of the overall structure of the pneumatic turntable mechanism of the present invention, specifically the bottom slip ring base plate and the fixed frame plate.

[0019] The following are the labels in the diagram: 1. Fixed base; 2. Fixed frame plate; 3. Rotating base; 4. Pneumatic slip ring; 5. Sixth fixing bolt; 6. Bottom rubber pad; 7. Third fixing bolt; 8. Clamping rubber pad; 9. Base bolt; 10. Clamping claw; 11. Rotating frame plate; 12. Dual-axis cylinder; 13. Third fixing bolt; 14. Fifth fixing bolt; 15. Fixed support shaft; 16. Base bolt; 17. Rotating support plate; 18. Pneumatic motor; 19. Thrust bearing; 20. Cylindrical gear; 21. Cylindrical sleeve; 22. Second fixing bolt; 23. First fixing bolt; 24. Slip ring base plate; 25. Rotary bearing. Detailed Implementation

[0020] The inventors discovered through research that current pneumatically powered clamping and fixing rotation mechanisms generally use self-locking devices to complete the clamping and fixing action, requiring manual intervention to achieve the clamping and fixing, making it difficult to achieve unmanned automation and resulting in low work efficiency. In addition, when using cylinder clamping and fixing, the cylinder air supply pipeline usually rotates asynchronously with the mechanism, causing entanglement and preventing synchronous rotation.

[0021] To address the problems existing in the prior art, this invention provides a pneumatic turntable mechanism for clamping, fixing, and rotating a ball-shaped cylinder. This mechanism uses pneumatics to clamp, fix, and rotate the ball-shaped cylinder, ensuring that the air supply lines of the cylinders performing the clamping and fixing work do not become entangled during rotation when the pneumatic motor drives the turntable. Furthermore, the entire device can be automatically controlled by a dual-axis cylinder and a pneumatic motor, eliminating the need for manual operation, thus solving the problems mentioned in the background art.

[0022] See Figures 1 to 5 This invention provides a pneumatic turntable mechanism for clamping, fixing, and rotating a ball-shaped cylinder, comprising a fixed base 1; a fixed frame plate 2 is disposed above the fixed base 1, and a rotating base 3 is disposed above the fixed frame plate 2; wherein, the fixed frame plate 2 is used to fix a slip ring base plate 24, the slip ring base plate 24 is used to fix the bottom of a pneumatic slip ring 4, and the rotating base 3 is used to fix the top of the pneumatic slip ring 4; a rotating support plate 17 is distributed on the rotating base 3, and a rotating frame plate 11 is fixed on the rotating support plate 17; a clamping claw 10 driven by a dual-axis cylinder 12 is disposed on the rotating frame plate 11; the air supply pipeline of the dual-axis cylinder 12 passes through the gap between the rotating base 3 and the rotating frame plate 11 and connects to the first air inlet and the first air outlet on the upper half end face of the pneumatic slip ring 4; while the second air inlet and the second air outlet on the lower half cylindrical surface of the pneumatic slip ring 4 are used to connect to the air source at the work site.

[0023] In this design, the fixed support plate 2 is mounted above the fixed base 1 via multiple fixed support shafts 15. Specifically, the fixed support shafts 15 have threaded holes at both ends, and are connected to the fixed base 1 and the fixed support plate 2 via threaded fasteners. Sufficient space is left between the fixed support shafts 15 and the fixed base 1 for mounting the slip ring base plate 24 and the pneumatic motor 18. The bottom of the fixed base 1 is provided with base bolts 16 for fixing the entire pneumatic turntable mechanism to the worktable surface. A rotating base 3 is mounted above the fixed support plate 2.

[0024] The fixed frame plate 2 is used to fix the slip ring base plate 24, the slip ring base plate 24 is used to fix the bottom of the pneumatic slip ring 4, and the rotating base 3 is used to fix the top of the pneumatic slip ring 4; specifically: The center of the fixed frame plate 2 is provided with a first through hole for the pneumatic slip ring 4 to pass through. The slip ring base plate 24 is located directly below the first through hole and is connected to the fixed frame plate 2 by the first fixing bolt 23. The first fixing bolt 23 is fitted with a cylindrical sleeve 21, which serves to protect and fix it.

[0025] The pneumatic slip ring 4 is fixed above the slip ring base plate 24 by the second fixing bolt 22. The pneumatic slip ring 4 is fixed to the middle of the rotating base 3 by the third fixing bolt 13. Multiple rotating support plates 17 are evenly distributed around the center on the upper surface of the rotating base 3. The inner ends of the upper surfaces of all rotating support plates 17 are machined into bevels, and the rest are flat. Bottom rubber pads 6 are provided on the bevels. A rotating frame plate 11 with a second through hole at the center is coaxially provided above the rotating base 3. The rotating frame plate 11 is fixed to the flat surface of the rotating support plate 17 by the fourth fixing bolt 7, so that the bevels of all rotating support plates 17 are located directly below the second through hole. When clamping the ball head, the end of the ball head passes through the second through hole on the rotating frame plate 11 and contacts the bottom rubber pad 6 on the bevel for support. The bottom rubber pad 6 protects the ball head.

[0026] The pneumatic slip ring 4 is divided into two parts, upper and lower, which are separated by a central annular groove. The upper part of the pneumatic slip ring 4 is fixed to the rotating base 3, and the lower part is fixed to the slip ring base plate 24. The end face of the upper part of the pneumatic slip ring 4 is located above the rotating base 3 and is provided with a first air inlet and a first air outlet for connection with the dual-axis cylinder 12 to achieve clamping and fixing action. The cylindrical surface of the lower part of the pneumatic slip ring 4 is provided with a second air inlet and a second air outlet connected to the air source, so that the upper part of the pneumatic slip ring 4 rotates with the rotating base 3 during rotational motion, while the lower part of the pneumatic slip ring 4 does not rotate.

[0027] Multiple dual-axis cylinders 12 are distributed around the circumference of the upper surface of the rotating frame plate 11. The dual-axis cylinders 12 are fixed to the rotating frame plate 11 by the fifth fixing bolt 14. Each dual-axis cylinder 12 has a clamping claw 10 installed at its output end. The clamping claw 10 can move radially along the rotating frame plate 11. The clamping surface of the clamping claw 10 is an arc-shaped surface. Clamping pads 8 are arranged on the clamping surface to provide clamping buffer and anti-slip function during clamping, preventing dents and scratches on the surface of the ball head. The clamping claw 10 is connected to the output end of the dual-axis cylinder 12 by the sixth fixing bolt 5. All the clamping claws 10 together form a circular structure, which is used to clamp the ball head under the drive of the dual-axis cylinder 12.

[0028] Sufficient clearance is provided between the rotating base 3 and the rotating frame plate 11 via the rotating support plate 17, allowing the air supply lines of all the dual-shaft cylinders 12 to be connected to the first air inlet and the first air outlet on the upper half of the pneumatic slip ring 4. The second air inlet and the second air outlet on the lower half of the pneumatic slip ring 4 are used to connect to the air supply at the work site. In this way, when the upper part of the rotating base 3 rotates, the air supply lines of all the dual-shaft cylinders 12 will rotate synchronously with the rotating base 3, and the air supply lines will not become entangled.

[0029] A pneumatic motor 18 is fixed at the lower part of the fixed frame plate 2. The output end of the pneumatic motor 18 extends through the upper surface of the fixed frame plate 2 and is mounted on a cylindrical gear 20 via a thrust bearing 19. The cylindrical gear 20 is connected to the rotating base 3 via a rotating shaft. A ring-shaped slewing bearing 25 is mounted on the bottom of the rotating base 3 via base bolts 9. The outer ring gear of the slewing bearing 25 meshes with the cylindrical gear 20. The thrust bearing 19 between the pneumatic motor 18 and the cylindrical gear 20 bears the axial load of the cylindrical gear 20, which can effectively reduce friction and vibration, improve the operating efficiency and stability of the structure, and extend the normal working life of the mechanism.

[0030] In practical applications, the air supply line can be led out from the first air inlet and the first air outlet on the upper half of the pneumatic slip ring 4, passing through the gap between the rotating base 3 and the rotating frame plate 11, and connected to the air inlet and outlet of the dual-shaft cylinder 12. After the pneumatic motor 18 is connected to the air supply, it drives the cylindrical gear 20, which in turn drives the rotary bearing 25 and the rotating base 3 connected to it to rotate. The air supply line of the dual-shaft cylinder 12 rotates synchronously with the pneumatic turntable mechanism. Since the upper half of the pneumatic slip ring 4 is connected to the rotating base 3 and the lower half is connected to the slip ring base plate 24, and the slip ring base plate 24 is connected to the fixed frame plate 2, the upper half of the pneumatic slip ring 4 rotates synchronously with the rotating base 3 during rotation, while the lower half remains stationary with the slip ring base plate 24, so that the air supply line will not rotate or become entangled.

[0031] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be included within the protection scope of this application.

Claims

1. A pneumatic turntable mechanism for clamping, fixing, and rotating a ball-shaped cylinder, characterized in that, It includes a fixed base (1); a fixed frame plate (2) is provided above the fixed base (1), and a rotating base (3) is provided above the fixed frame plate (2); wherein, the fixed frame plate (2) is used to fix the slip ring base plate (24), the slip ring base plate (24) is used to fix the bottom of the pneumatic slip ring (4), and the rotating base (3) is used to fix the top of the pneumatic slip ring (4); a rotating support plate (17) is distributed on the rotating base (3), the rotating frame plate (11) is fixed on the rotating support plate (17), and a clamping claw (10) driven by a dual-axis cylinder (12) is provided on the rotating frame plate (11); the air source pipeline of the dual-axis cylinder (12) passes through the gap between the rotating base (3) and the rotating frame plate (11) and connects to the first air inlet and the first air outlet on the upper half end face of the pneumatic slip ring (4); and the second air inlet and the second air outlet on the lower half cylindrical surface of the pneumatic slip ring (4) are used to connect the air source.

2. The pneumatic turntable mechanism for clamping, fixing, and rotating a ball-shaped cylinder according to claim 1, characterized in that, The fixed frame plate (2) is set above the fixed base (1) by multiple fixed support shafts (15); the bottom of the fixed base (1) is fixed on the workbench.

3. The pneumatic turntable mechanism for clamping and fixing the ball head column according to claim 1, wherein a first through hole for passing through the pneumatic slip ring (4) is provided at the center of the fixed frame plate (2), and the slip ring base plate (24) is provided below the first through hole and connected to the fixed frame plate (2); the pneumatic slip ring (4) is fixed above the slip ring base plate (24), and the pneumatic slip ring (4) is fixed to the middle of the rotating base (3), and a plurality of the rotating support plates (17) are evenly distributed around the center on the upper surface of the rotating base (3).

4. The pneumatic turntable mechanism for clamping and fixing the ball head column according to claim 1, wherein the inner end of the upper surface of all rotating support plates (17) is machined into an inclined surface, and the rest is a flat surface; a bottom rubber pad (6) is provided on the inclined surface; a rotating frame plate (11) with a second through hole at the center is coaxially provided above the rotating base (3), the rotating frame plate (11) is fixed on the flat surface of the rotating support plate (17), and the inclined surface of all rotating support plates (17) is located directly below the second through hole; when clamping the ball head column, the end of the ball head column passes through the second through hole on the rotating frame plate (11) and contacts and supports the bottom rubber pad (6) on the inclined surface.

5. The pneumatic turntable mechanism for clamping and fixing the ball head column according to claim 1, wherein the pneumatic slip ring (4) is divided into upper and lower parts, which are separated by a middle annular groove; the upper part of the pneumatic slip ring (4) is fixed to the rotating base (3), and the lower part is fixed to the slip ring base plate (24); the end face of the upper part of the pneumatic slip ring (4) is located above the rotating base (3) and is provided with the first air inlet and the first air outlet, which are used to connect with the dual-axis cylinder (12) to realize the clamping and fixing action; the cylindrical surface of the lower part of the pneumatic slip ring (4) is provided with the second air inlet and the second air outlet connected to the air source, so that the upper part of the pneumatic slip ring (4) rotates with the rotating base (3) during the rotational movement, while the lower part of the pneumatic slip ring (4) does not rotate.

6. The pneumatic turntable mechanism for clamping and fixing the ball head column according to claim 1, wherein multiple dual-axis cylinders (12) are distributed on the circumference of the upper surface of the rotating frame plate (11), and each dual-axis cylinder (12) is equipped with a clamping claw (10) at its output end. The clamping claw (10) can move radially along the rotating frame plate (11). The clamping surface of the clamping claw (10) is an arc-shaped surface, and a clamping pad (8) is arranged on the clamping surface. All the clamping claws (10) together form a circular structure, which is used to clamp the ball head column under the drive of the dual-axis cylinder (12).

7. The pneumatic turntable mechanism for clamping and fixing the ball head column according to claim 1, wherein a pneumatic motor (18) is fixed at the lower part of the fixed frame plate (2), the output end of the pneumatic motor (18) passes through the upper surface of the fixed frame plate (2) and a cylindrical gear (20) is installed through a thrust bearing (19), and the cylindrical gear (20) is connected to the rotating base (3) through a rotating shaft; an annular slewing bearing (25) is installed at the bottom of the rotating base (3), and the outer ring gear of the slewing bearing (25) meshes with the cylindrical gear (20).

8. According to claim 1, the pneumatic turntable mechanism for clamping and fixing the ball head column is as follows: after the pneumatic motor (18) is connected to the air source, it drives the cylindrical gear (20) to drive the rotary bearing (25) and the rotating base (3) connected thereto to rotate; the air source pipeline of the dual-shaft cylinder (12) rotates synchronously with the pneumatic turntable mechanism; the upper half of the pneumatic slip ring (4) is connected to the rotating base (3), and the lower half is connected to the slip ring base plate (24). The slip ring base plate (24) is connected to the fixed frame plate (2). When rotating, the upper half of the pneumatic slip ring (4) rotates synchronously with the rotating base (3), while the lower half remains stationary with the slip ring base plate (24). The air source pipeline will not rotate or become entangled.

9. A processing equipment, characterized in that, The device includes a pneumatic turntable mechanism for clamping and fixing the ball-head cylinder according to any one of claims 1-8.

10. A processing production line, characterized in that, The production line includes the processing equipment as described in claim 9.

Images