Five-axis workbench

Abstract

The utility model provides a five-axis workbench. The five-axis workbench solves the problems that an existing five-axis workbench needs to drive a head workpiece to rotate through a worm arranged below the workpiece on a rotating base, the structure is complex, and use is inconvenient. The device comprises a rotating seat and rotary tables which are arranged on the two sides of the rotating seat and drive the rotating seat to rotate, a hollow fixing column is fixedly arranged on the rotating seat, and a rotating disc is movably arranged at the upper end of the fixing column. A motor used for driving the rotating disc to rotate, a speed reducer and a distributor are sequentially arranged in the fixing column from bottom to top, the motor drives the rotating disc to drive the workpiece to rotate, the number of parts needed for driving the workpiece to rotate is greatly reduced, and the structure is simple.

Description

Technical Field

[0001] The utility model relates to the technical field of workbenches, in particular to a five-axis workbench. Background Art

[0002] Five-axis linkage is based on the traditional three-axis X, Y, and Z motion, and adds two angular coordinate motions. The A axis rotates around the X axis, and the C axis rotates around the Z axis. Under the control of the computer numerical control system, the five-axis linkage can realize curved surface processing. The existing roller cam AC five-axis workbench is usually a box structure, in which cams and turrets that are perpendicular to each other in the axial direction are installed. The turret is evenly installed with multiple needle bearings in the radial direction, and the needle bearings and the curved surface of the cam are meshed without side clearance. Bearings are provided at both ends of the cam. The cam and the bearing are installed at the lower part of the box through an eccentric flange. The center distance of the cam and the turret is adjusted by rotating the eccentric flange, and a transmission effect without side clearance can be achieved. The traditional five-axis workbench needs to be rotated by a worm drive head set below the workpiece on the rotating seat. The structure is relatively complex, and the bottom of the rotating seat needs to be closed, which is inconvenient to use. There is room for improvement in the existing technology. Summary of the invention

[0003] The swivel chair is an assembly made up of a plurality of movable parts, each of which is respectively provided with a plurality of movable parts and a plurality of movable parts for fixing the movable parts.

[0004] Preferably, guide grooves are respectively provided on both sides of the inclined surface, and guide rods for being engaged in the guide grooves and movable along the length direction of the guide grooves are provided on both sides of the movable block toward one end of the inclined surface.

[0005] Preferably, a support block extending in a vertical direction and used to abut against the inner wall of the workpiece and fix the workpiece is fixedly provided at one end of the movable block away from the guide groove, and the support block is detachably mounted on the movable block.

[0006] Preferably, a centering clamping block is fixedly provided on the upper end of the first oil cylinder, the upper end of the movable block is located at the upper end of the rotating disk, and a slot for clamping the centering clamping block is provided on the side of the upper end of the movable block facing the rotating disk, and one end of the centering clamping block facing the slot is clamped in the slot.

[0007] Preferably, a plurality of guide pins extending in the vertical direction are fixedly provided on the rotating disk, and the guide pins are inserted into the centering clamping block. The centering clamping block can drive the movable block to move in the vertical direction along the guide pins under the drive of the first oil cylinder.

[0008] Preferably, two clamping mechanisms are provided and symmetrically arranged at the upper end of the rotating disk.

[0009] Preferably, the clamping mechanism includes a second oil cylinder fixedly arranged at the upper end of the rotating disk and a driving rod extending upward in the vertical direction. A connecting rod is movably arranged on the second oil cylinder. The connecting rod, the driving rod and the center of the rotating disk are located on the same plane, and the driving rod is located between the center of the rotating disk and the connecting rod. A pressure rod is rotatably arranged on the upper end of the connecting rod, and the two ends of the pressure rod are respectively located on both sides of the connecting rod, and the pressure rod is rotatably arranged at the upper end of the driving rod toward one end of the driving rod, and the end of the pressure rod away from the driving rod is located on the outside of the rotating disk.

[0010] Preferably, the tension sleeve is provided with two circles of mounting grooves for mounting a sealing ring, the tension sleeve is provided with a circle of oil chamber, the oil chamber is located between the two mounting grooves, and the inner wall of the fixing column is provided with an oil supply hole connected to the oil chamber.

[0011] Preferably, the thickness of the outer wall of the oil chamber is 0.1 mm-0.3 mm.

[0012] Preferably, a cover plate is provided at the lower end of the rotating seat and is buckled under the above-mentioned motor.

[0013] Compared with the prior art, in the utility model, the workpiece is driven to rotate by a motor-driven rotating disk, which greatly reduces the number of parts required to drive the workpiece to rotate. The structure is simple, and the lower end of the rotating seat is in an open state, which is more convenient to use. When in use, the workpiece is fixed by matching inclined surfaces and movable blocks, and after the workpiece is adjusted to the processing position by the rotating disk and the mounting sleeve, the mounting sleeve is locked by the tensioning sleeve on the fixed column to avoid the position of the workpiece from being offset during the processing, and the locking is more firm and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is the overall structural view of the utility model;

[0015] Figure 2This is the overall structural view on the fixed column;

[0016] Figure 3 It is a cutaway view at the fixed column;

[0017] Figure 4 It is a cutaway view at the active block;

[0018] Figure 5 This is the overall structural view of the tension sleeve;

[0019] Figure 6 This is a cutaway view of the tension sleeve.

[0020] Markings in the figure: 1. rotating seat; 2. turntable; 3. fixed column; 4. rotating disk; 5. plane bearing; 6. motor; 7. reducer; 8. distributor; 9. mounting sleeve; 10. movable block; 11. inclined plane; 12. first oil cylinder; 13. tensioning sleeve; 14. clamping mechanism; 15. spacer block; 16. guide groove; 17. guide rod; 18. support block; 19. centering clamping block; 20. slot; 21. guide pin; 22. second oil cylinder; 23. driving rod; 24. connecting rod; 25. pressure rod; 26. mounting groove; 27. oil chamber; 28. cover plate. DETAILED DESCRIPTION

[0021] The present invention will be further described below with reference to the embodiments shown in the accompanying drawings:

[0022] like Figure 1-6As shown, a five-axis workbench comprises a rotating seat 1 and a turntable 2 arranged on both sides of the rotating seat 1, wherein a hollow fixed column 3 is fixedly arranged on the rotating seat 1, a rotating disk 4 is movably arranged on the upper end of the fixed column 3, and the rotating disk 4 is movably arranged on the fixed column 3 through a plane bearing 5, and a motor 6, a reducer 7 and a distributor 8 for driving the rotating disk 4 to rotate are arranged in sequence from bottom to top in the fixed column 3, and a mounting sleeve 9 sleeved on the outer periphery of the fixed column 3 is fixedly arranged on the lower end of the rotating disk 4, and a plurality of movable blocks 10 for fixing workpieces are movably arranged on the outer periphery of the mounting sleeve 9, The outer periphery of the installation sleeve 9 is provided with a plurality of inclined surfaces 11 extending in the vertical direction and arranged obliquely, and the movable block 10 can move along the inclined surfaces 11. The first oil cylinder 12 driving the movable block 10 to move is fixedly provided on the rotating disk 4. The outer periphery of the fixed column 3 is provided with a tension sleeve 13 for locking the installation sleeve 9. The tension sleeve 13 is provided with two circles of mounting grooves 26 for mounting a sealing ring. The tension sleeve 13 is provided with a circle of oil chamber 27, and the oil chamber 27 is located between the two mounting grooves 26. The inner wall of the fixed column 3 is provided with an oil supply hole connected to the oil chamber 27. The wall thickness of the outer wall of the oil chamber 27 is 0.2 mm. When the installation sleeve 9 is locked, oil is supplied to the oil chamber 27 through the oil supply hole on the fixed column 3, driving the outer wall of the oil chamber 27 to deform outward and abut against the inner wall of the installation sleeve 9 to lock the installation sleeve 9. A clamping mechanism 14 for pressing against the workpiece is arranged above the rotating disk 4, and a pad 15 is fixedly arranged at the lower end of the rotating table 2. A cover plate 28 is arranged at the lower end of the rotating seat 1 and is buckled under the motor 6.

[0023] The workpiece is rotated by driving the rotating disk 4 through the motor 6, which greatly reduces the number of parts required to drive the workpiece to rotate. The structure is simple, and the lower end of the rotating seat 1 is in an open state, which is convenient to use. When in use, the workpiece is fixed by the matching inclined surface 11 and the movable block 10, and the workpiece is adjusted to the processing position through the rotating disk 4 and the mounting sleeve 9, and the mounting sleeve 9 is locked by the tensioning sleeve 13 on the fixed column 3, so as to avoid the position of the workpiece from being offset during the processing, and the locking is relatively firm and reliable.

[0024] Guide grooves 16 are respectively provided on both sides of the inclined surface 11. Guide rods 17 for clamping in the guide grooves 16 and being able to move along the length direction of the guide grooves 16 are provided on both sides of the movable block 10 facing the inclined surface 11. The movable block moves along the inclined surface through the matching guide grooves 16 and guide rods 17. A support block 18 extending in the vertical direction and used to abut against the inner wall of the workpiece and fix the workpiece is fixedly provided at one end of the movable block 10 away from the guide groove 16. The support block 18 can be detachably installed on the movable block 10. A centering clamping block 19 is fixedly provided at the upper end of the first oil cylinder 12. The upper end of the movable block 10 is located at the upper end of the rotating disk 4. A clamping groove 20 for clamping the centering clamping block 19 is provided on the upper end of the movable block 10 facing the rotating disk 4. The end of the centering clamping block 19 facing the clamping groove 20 is clamped in the clamping groove 20. A plurality of guide pins 21 extending in the vertical direction are fixedly provided on the rotating disk 4, and the guide pins 21 are inserted on the centering clamping block 19. The centering clamping block 19 can drive the movable block 10 to move in the vertical direction along the guide pins 21 under the drive of the first oil cylinder 12. The movable block 10 is placed on the centering clamping block 19 through the slot 20, and the movable block 10 is driven up and down by the first oil cylinder 12. The centering clamping block 19 can only move up and down relative to the rotating disk 4 through the guide pins 21. The movable block 10 moves downward along the inclined surface 11 and moves outward and abuts against the inner wall of the workpiece to fix the workpiece. When processing different workpieces, different support blocks 18 can be replaced, which is more convenient to use.

[0025] The clamping mechanism 14 is provided with two and symmetrically arranged at the upper end of the rotating disk 4. The clamping mechanism 14 includes a second oil cylinder 22 fixedly arranged at the upper end of the rotating disk 4 and a driving rod 23 extending upward in the vertical direction. A connecting rod 24 is movably arranged on the second oil cylinder 22. The connecting rod, the driving rod 23 and the center of the rotating disk 4 are located on the same plane, and the driving rod 23 is located between the center of the rotating disk 4 and the connecting rod 24. A pressure rod 25 is rotatably arranged on the upper end of the connecting rod 24. The two ends of the pressure rod 25 are respectively located on both sides of the connecting rod 24, and the pressure rod 25 is rotatably arranged at the upper end of the driving rod 23 toward one end of the driving rod 23, and the end of the pressure rod 25 away from the driving rod 23 is located outside the rotating disk 4. The driving rod 23 moves upward so that the end of the pressure rod 25 close to the driving rod 23 moves upward, and the end of the pressure rod 25 away from the driving rod 23 moves downward and presses against the workpiece, completing the further locking of the workpiece. After installation, it is relatively stable and reliable.

[0026] During processing, the workpiece is sleeved on the outer periphery of the mounting sleeve 9. At this time, the centering clamping block 19 is driven downward by the first oil cylinder 12, and the movable block 10 is clamped on the centering clamping block 19 through the slot 20. As the centering clamping block 19 moves downward and outward along the inclined surface 11 through the matching guide rod 17 and guide slot 16, until it abuts against the inner wall of the workpiece to lock the workpiece, the second oil cylinder 22 drives the rod 23 to move upward, so that the end of the pressure rod 15 away from the driving rod 23 moves downward and presses against the top of the workpiece, completing the locking of the workpiece in the vertical direction. After the workpiece is adjusted to the processing position by the motor 6 and the turntable 2, the oil chamber 27 is supplied with oil through the tensioning sleeve 13 sleeved on the fixed column 3, so that the outer wall of the oil chamber 27 is deformed outward and abuts against the inner wall of the mounting sleeve 9 to complete the locking of the mounting sleeve 9. After the whole is completely locked, processing can be carried out.

[0027] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A five-axis workbench, comprising a rotating seat (1) and a turntable (2) arranged on both sides of the rotating seat (1) for driving the rotating seat (1) to rotate, characterized in that: A hollow fixed column (3) is fixedly arranged on the rotating seat (1), a rotating disk (4) is movably arranged on the upper end of the fixed column (3), the rotating disk (4) is movably arranged on the fixed column (3) via a plane bearing (5), a motor (6), a reducer (7) and a distributor (8) for driving the rotating disk (4) to rotate are arranged in sequence from bottom to top in the fixed column (3), a mounting sleeve (9) is fixedly arranged on the lower end of the rotating disk (4) and is sleeved on the outer periphery of the fixed column (3), and a plurality of movable parts for fixing workpieces are movably arranged on the outer periphery of the mounting sleeve (9). A movable block (10) is provided on the outer periphery of the mounting sleeve (9) with a plurality of inclined surfaces (11) extending in the vertical direction and arranged obliquely, and the movable block (10) can move along the inclined surfaces (11); a first oil cylinder (12) for driving the movable block (10) to move is fixedly provided on the rotating disk (4); a tensioning sleeve (13) for locking the mounting sleeve (9) is provided on the outer periphery of the fixed column (3); a clamping mechanism (14) for pressing against the top of a workpiece is provided above the rotating disk (4); and a padding block (15) is fixedly provided at the lower end of the turntable (2).

2. A five-axis workbench according to claim 1, characterized in that: Guide grooves (16) are respectively provided on both sides of the inclined surface (11), and guide rods (17) are provided on both sides of the movable block (10) facing one end of the inclined surface (11) for being engaged in the guide grooves (16) and being movable along the length direction of the guide grooves (16).

3. A five-axis workbench according to claim 2, characterized in that: A support block (18) extending in a vertical direction and used to abut against the inner wall of a workpiece and fix the workpiece is fixedly provided at one end of the movable block (10) away from the guide groove (16); the support block (18) is detachably mounted on the movable block (10).

4. A five-axis workbench according to claim 3, characterized in that: A centering clamping block (19) is fixedly provided at the upper end of the first oil cylinder (12); the upper end of the movable block (10) is located at the upper end of the rotating disk (4); and a clamping groove (20) for clamping the centering clamping block (19) is provided on a side of the upper end of the movable block (10) facing the rotating disk (4); and one end of the centering clamping block (19) facing the clamping groove (20) is clamped in the clamping groove (20).

5. A five-axis workbench according to claim 4, characterized in that: A plurality of guide pins (21) extending in the vertical direction are fixedly arranged on the rotating disk (4), and the guide pins (21) are inserted into the centering clamping block (19). The centering clamping block (19) can drive the movable block (10) to move in the vertical direction along the guide pins (21) under the drive of the first oil cylinder (12).

6. The five-axis workbench according to claim 1, characterized in that: Two clamping mechanisms (14) are provided and are symmetrically arranged at the upper end of the rotating disk (4).

7. A five-axis workbench according to claim 6, characterized in that: The clamping mechanism (14) comprises a second oil cylinder (22) fixedly arranged at the upper end of the rotating disk (4) and a driving rod (23) extending upward in the vertical direction. A connecting rod (24) is movably arranged on the second oil cylinder (22). The connecting rod (24) and the driving rod (23) and the center of the rotating disk (4) are located on the same plane, and the driving rod (23) is located between the center of the rotating disk (4) and the connecting rod (24). A pressing rod (25) is rotatably arranged on the upper end of the connecting rod (24). Two ends of the pressing rod (25) are respectively located on both sides of the connecting rod (24). The pressing rod (25) is rotatably arranged at the upper end of the driving rod (23) toward one end of the driving rod (23), and one end of the pressing rod (25) away from the driving rod (23) is located outside the rotating disk (4).

8. The five-axis workbench according to claim 1, characterized in that: The tension sleeve (13) is provided with two circles of mounting grooves (26) for mounting a sealing ring, the tension sleeve (13) is provided with a circle of oil chambers (27), the oil chamber (27) is located between the two mounting grooves (26), and the inner wall of the fixing column (3) is provided with an oil supply hole connected to the oil chamber (27).

9. A five-axis workbench according to claim 8, characterized in that: The thickness of the outer wall of the oil chamber (27) is 0.1 mm to 0.3 mm.

10. The five-axis workbench according to claim 1, characterized in that: The lower end of the rotating seat (1) is provided with a cover plate (28) which is buckled under the motor (6).

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