A precision turntable for rapid positioning

Abstract

This utility model discloses a precision turntable for rapid positioning, relating to the field of precision turntable technology. The precision turntable includes a base, with support plates symmetrically mounted on the upper surface of the base. Rotating rods are rotatably connected to opposite sides of the two support plates, and support frames are fixedly connected to the other ends of the two rotating rods. A chassis is fixedly connected between the two support frames, and the turntable body is positioned directly above the chassis. A drive assembly is located at the bottom of the chassis and is used to drive the turntable body to rotate. This utility model, through its drive assembly, can effectively drive the turntable body to rotate; through its heat dissipation assembly, it can effectively dissipate heat from the components within the drive assembly; and through its adjustment assembly, it allows operators to easily adjust the tilt angle of the turntable body, effectively improving the overall practicality and ease of use of the device.

Description

Technical Field

[0001] This utility model relates to the field of precision turntable technology, specifically a precision turntable for rapid positioning. Background Technology

[0002] A precision rotary table is a high-precision CNC indexing device, mainly used to achieve sub-micron level rotational positioning and control. By integrating servo motors, grating encoders and precision reduction mechanisms, it achieves an ultra-high precision level with a repeatability of less than or equal to five arc seconds. Precision rotary tables are required when machining precision workpieces.

[0003] Traditional turntables are typically driven by worm gears or bevel gears. Over time, these gears generate heat, which can affect the turntable's rotational accuracy. Furthermore, angle adjustments on traditional turntables are usually driven by a motor or operated by experienced personnel. When the motor malfunctions or the operator lacks sufficient experience, the efficiency and effectiveness of angle adjustments are affected, reducing the overall practicality and ease of use of the device.

[0004] Based on this, a precision turntable for rapid positioning is now provided, which can eliminate the drawbacks of existing devices. Utility Model Content

[0005] The purpose of this invention is to provide a precision turntable for rapid positioning, so as to solve the problems in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A precision turntable for rapid positioning includes a base, with support plates symmetrically mounted on the upper surface of the base. Rotating rods are rotatably connected to opposite sides of the two support plates, and support frames are fixedly connected to the other ends of the two rotating rods. A chassis is fixedly connected between the two support frames, and the turntable body is located directly above the chassis.

[0008] The drive assembly is located at the bottom of the chassis and is used to drive the turntable body to rotate.

[0009] A heat dissipation component is located at the bottom of the drive assembly and is used to dissipate heat from the components inside the drive assembly.

[0010] The adjustment component is located on one side of the two support plates and is used to position and adjust the tilt angle of the turntable body.

[0011] Based on the above technical solutions, this utility model also provides the following optional technical solutions:

[0012] In one alternative embodiment: the drive assembly includes a drive box fixedly connected to the bottom of the chassis, a drive rod rotatably connected to the inner wall of the drive box, the other end of the drive rod extending to the outside of the chassis and fixedly connected to the bottom of the turntable body, a stepper motor fixedly connected to the surface of the drive box, a transmission rod rotatably connected to the inner side wall of the drive box, the transmission rod being driven by the stepper motor, a first bevel gear fixedly connected to the other end of the transmission rod, and a second bevel gear meshing with the first bevel gear fixedly connected to the outer wall of the drive rod.

[0013] In one alternative: the upper surface of the chassis has multiple movable slots for mounting ball bearings, and the outer walls of the multiple ball bearings are in contact with the bottom of the turntable body.

[0014] In one alternative: the heat dissipation assembly includes cooling fans symmetrically mounted at the bottom of the drive housing.

[0015] In one alternative: multiple positioning frames are fixedly connected to the surface of the drive box, and connecting plates are inserted into each of the multiple positioning frames. Dustproof mesh covers are fixedly connected between the multiple connecting plates, and the dustproof mesh covers are placed on the outside of the drive box.

[0016] In one alternative: symmetrically mounted fixing blocks are mounted on the surface of the drive box; a sliding rod is fixedly connected to the inner wall of the fixing block; an abutment plate is slidably connected to the outer wall of the sliding rod; a return spring is sleeved on the outside of the sliding rod; the return spring abuts against the abutment plate and the fixing block; side plates are symmetrically mounted on the surface of the abutment plate; a pull plate is fixedly connected to the surface of every two side plates; a pull ring is fixedly connected to one side of the pull plate; multiple insertion rods are fixedly connected to the other side of the pull plate; slots for the insertion rods to move are opened on the surface of the positioning frame and the connecting plate.

[0017] In one alternative embodiment: the adjusting assembly includes a locking plate fixedly installed on opposite sides of two support plates, with connecting rods symmetrically slidably inserted into the upper surface of the locking plate, a top plate fixedly connected to the top of each pair of connecting rods, and a locking block fixedly connected to the bottom of each pair of connecting rods, a rotating gear fixedly connected to the outer wall of the rotating rod, a slot for engaging the rotating gear being provided at the bottom of the locking block, and an abutting spring sleeved on the outside of the connecting rod, the abutting spring abutting between the locking block and the locking plate.

[0018] In one alternative: a scale is fixedly connected to the outer wall of the rotating rod, and an indicator needle that mates with the scale is fixedly installed on the upper surface of the support plate.

[0019] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0020] 1. This utility model, through the setting of the drive component, can conveniently and effectively drive the turntable body to rotate, thereby enabling the turntable body to effectively drive the workpiece to rotate for processing.

[0021] 2. By setting up a heat dissipation component, this utility model can conveniently and effectively cool down the temperature generated between the internal components of the drive component, thereby avoiding the generation of high temperatures between the internal components of the drive component, which would affect the positional accuracy of the turntable body after rotation, and effectively improving the overall practicality and accuracy of the device.

[0022] 3. By adjusting the components, this utility model allows operators to easily adjust the tilt angle of the turntable body without the need for motors or other drive equipment, effectively reducing the overall operating cost of the device. Moreover, even inexperienced operators can adjust the tilt angle of the turntable body according to actual needs, effectively improving the overall practicality and ease of use of the device. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0024] Figure 2 This is a cross-sectional structural diagram of the drive box in this utility model.

[0025] Figure 3 This is a bottom view of the structure of this utility model;

[0026] Figure 4 This is a cross-sectional view of the locking plate in this utility model;

[0027] Figure 5 for Figure 3 Enlarged structural diagram of region A in the middle;

[0028] Figure 6 for Figure 4 A magnified structural diagram of region B in the middle.

[0029] Figure label annotations:

[0030] 1. Base; 2. Support plate; 3. Chassis; 4. Turntable body; 5. Drive box; 6. Stepper motor; 7. Transmission rod; 8. First bevel gear; 9. Second bevel gear; 10. Drive rod; 11. Ball bearing; 12. Cooling fan; 13. Dustproof mesh cover; 14. Connecting plate; 15. Support frame; 16. Positioning frame; 17. Fixing block; 18. Slide rod; 19. Contact plate; 20. Return spring; 21. Side plate; 22. Pull plate; 23. Insert rod; 24. Locking plate; 25. Rotating rod; 26. Rotating gear; 27. Top plate; 28. Connecting rod; 29. ​​Locking block; 30. Contact spring; 31. Indicator needle; 32. Dial. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0032] In one embodiment, such as Figures 1-6 As shown, a precision turntable for rapid positioning includes a base 1, with support plates 2 symmetrically mounted on the upper surface of the base 1. Rotating rods 25 are rotatably connected to opposite sides of the two support plates 2, and support frames 15 are fixedly connected to the other ends of the two rotating rods 25. A chassis 3 is fixedly connected between the two support frames 15, and a turntable body 4 is provided directly above the chassis 3.

[0033] The drive assembly is located at the bottom of the chassis 3 and is used to drive the turntable body 4 to rotate.

[0034] A heat dissipation component is located at the bottom of the drive assembly and is used to dissipate heat from the components inside the drive assembly.

[0035] The adjustment component is located on one side of the two support plates 2 and is used to position and adjust the tilt angle of the turntable body 4.

[0036] In this embodiment, when a workpiece needs to be processed, it is only necessary to place the workpiece on the turntable body 4. At this time, the drive component starts to operate and can effectively drive the turntable body 4 to rotate, thereby driving the workpiece to rotate synchronously through the turntable body 4, which facilitates the processing of the workpiece. During the operation of the drive component, the internal components of the drive component will generate heat. At this time, the heat dissipation component starts to operate and can effectively dissipate heat and cool down the internal components of the drive component, thereby avoiding the overheating of the internal components of the drive component, which would affect the rotation accuracy of the turntable body 4, and at the same time, can extend the service life of the drive component. When it is necessary to adjust the tilt angle of the turntable body 4, the angle of the turntable body 4 can be quickly and easily positioned and adjusted by simply adjusting the component, without the need for motors or other equipment, which effectively reduces the overall operating cost of the device. Moreover, the operator does not need to have extensive adjustment experience to accurately adjust the angle of the turntable body 4, which further improves the overall practicality and ease of use of the device.

[0037] In one embodiment, such as Figure 2As shown, the drive assembly includes a drive box 5 fixedly connected to the bottom of the chassis 3. A drive rod 10 is rotatably connected to the inner wall of the drive box 5. The other end of the drive rod 10 extends to the outside of the chassis 3 and is fixedly connected to the bottom of the turntable body 4. A stepper motor 6 is fixedly connected to the surface of the drive box 5. A transmission rod 7 is rotatably connected to the inner side wall of the drive box 5. The transmission rod 7 is driven by the stepper motor 6. A first bevel gear 8 is fixedly connected to the other end of the transmission rod 7. A second bevel gear 9 that meshes with the first bevel gear 8 is fixedly connected to the outer wall of the drive rod 10. When the turntable body 4 needs to be driven to rotate, the stepper motor 6 starts to run. At this time, the stepper motor 6 will drive the transmission rod 7 and the first bevel gear 8 to rotate synchronously. The first bevel gear 8 will then drive the second bevel gear 9 and the drive rod 10 to rotate synchronously. The drive rod 10 will then drive the turntable body 4 to rotate synchronously. At this time, the turntable body 4 can be rotated, thereby enabling the workpiece placed on the turntable body 4 to rotate.

[0038] In one embodiment, such as Figure 2 As shown, the upper surface of the chassis 3 is provided with multiple movable slots for installing the rolling balls 11. The outer walls of the multiple rolling balls 11 are in contact with the bottom of the turntable body 4. By setting the rolling balls 11, the smoothness of rotation between the turntable body 4 and the chassis 3 can be effectively improved, and the rolling balls 11 can provide a certain support for the turntable body 4.

[0039] In one embodiment, such as Figure 3 As shown, the heat dissipation component includes cooling fans 12 symmetrically installed at the bottom of the drive box 5. After a long period of meshing transmission between the first bevel gear 8 and the second bevel gear 9, the temperature of the first bevel gear 8 and the second bevel gear 9 will rise. At this time, the cooling fan 12 starts to run. The cooling fan 12 can effectively dissipate heat and cool down the first bevel gear 8 and the second bevel gear 9, thereby avoiding the temperature rise of the first bevel gear 8 and the second bevel gear 9 from affecting the rotation accuracy of the turntable body 4.

[0040] In one embodiment, such as Figure 3 As shown, multiple positioning frames 16 are fixedly connected to the surface of the drive box 5. Each positioning frame 16 has a connecting plate 14 inserted into it. Dustproof mesh covers 13 are fixedly connected between the multiple connecting plates 14. The dustproof mesh covers 13 cover the outside of the drive box 5. By setting the dustproof mesh covers 13, the first bevel gear 8 and the second bevel gear 9 can be effectively protected from dust, thereby preventing dust and other impurities in the external environment from accumulating and adhering to the outer walls of the first bevel gear 8 and the second bevel gear 9 through the cooling fan 12, which would affect the transmission accuracy between the first bevel gear 8 and the second bevel gear 9.

[0041] In one embodiment, such as Figure 3 and Figure 5As shown, fixed blocks 17 are symmetrically installed on the surface of the drive box 5. A slide rod 18 is fixedly connected to the inner wall of the fixed block 17. An abutment plate 19 is slidably connected to the outer wall of the slide rod 18. A return spring 20 is sleeved on the outside of the slide rod 18. The return spring 20 abuts between the abutment plate 19 and the fixed block 17. Side plates 21 are symmetrically installed on the surface of the abutment plate 19. A pull plate 22 is fixedly connected to the surface of every two side plates 21. A pull ring is fixedly connected to one side of the pull plate 22. Multiple insertion rods 23 are fixedly connected to the other side of the pull plate 22. Slots for the insertion rods 23 to move are opened on the surfaces of the positioning frame 16 and the connecting plate 14. When the dust cover 13 needs to be installed, simply pull the pull ring first. At this time, the pull ring will drive the pull plate 22 and the side plate 21 synchronously. The side plate 21 moves, and the contact plate 19 moves synchronously on the outer wall of the slide rod 18. During the movement of the contact plate 19, the return spring 20 is squeezed. The pull plate 22 also moves synchronously with the insertion rod 23. At this time, the connecting plate 14 is inserted into the positioning frame 16, and the pull ring is released. At this time, the return spring 20 is reset, and the contact plate 19, side plate 21 and pull plate 22 move synchronously to reset. The pull plate 22 then moves synchronously with the insertion rod 23. When the insertion rod 23 is inserted into the slot on the surface of the connecting plate 14, the connecting plate 14 and the positioning frame 16 can be fixed. At this time, the dust cover 13 can be installed, and it is convenient for the staff to disassemble, replace and clean the dust cover 13.

[0042] In one embodiment, such as Figure 4 and Figure 6As shown, the adjustment assembly includes a locking plate 24 fixedly installed on opposite sides of two support plates 2. Connecting rods 28 are symmetrically slidably inserted into the upper surface of the locking plate 24. A top plate 27 is fixedly connected to the top of each pair of connecting rods 28, and a locking block 29 is fixedly connected to the bottom of each pair of connecting rods 28. A rotating gear 26 is fixedly connected to the outer wall of the rotating rod 25. A slot for engaging the rotating gear 26 is provided at the bottom of the locking block 29. An abutment spring 30 is sleeved on the outside of the connecting rod 28, and the abutment spring 30 abuts against the locking block 29 and the locking plate 24. When it is necessary to adjust the tilt angle of the turntable body 4, simply pull the top plate 27 first. At this time, the top plate 27 will drive the connecting rod 28 and the locking block 29 synchronously. During the movement of the locking block 29, the contact spring 30 is compressed. When the locking block 29 disengages from the outer wall of the rotating gear 26, the turntable body 4 is then moved. At this time, the turntable body 4 will drive the chassis 3 and the support frame 15 to tilt synchronously. The support frame 15 will then drive the rotating rod 25 and the rotating gear 26 to rotate synchronously. When the turntable body 4 tilts to a suitable angle, the top plate 27 is released. At this time, the contact spring 30 resets and drives the locking block 29 to reset and move synchronously. When the slot at the bottom of the locking block 29 engages with the outer wall of the rotating gear 26, the rotating gear 26 and the rotating rod 25 can be locked. At this time, the tilt angle of the turntable body 4 can be adjusted conveniently and quickly.

[0043] In one embodiment, such as Figures 1-4 As shown, a scale 32 is fixedly connected to the outer wall of the rotating rod 25, and an indicator needle 31 that cooperates with the scale 32 is fixedly installed on the upper surface of the support plate 2. During the rotation of the rotating rod 25, the scale 32 will also rotate synchronously. At this time, the operator can check the tilt angle of the turntable body 4 by the cooperation between the indicator needle 31 and the scale 32, which can effectively improve the accuracy of the angle adjustment of the turntable body 4, and at the same time facilitate the operator to use the device as a whole, effectively improving the overall practicality and ease of use of the device.

[0044] The above embodiments disclose a precision rotary table for rapid positioning. When a workpiece needs to be processed, it is simply placed on the rotary table body 4. At this time, the stepper motor 6 starts running, effectively driving the rotary table body 4 to rotate. This allows the workpiece to rotate synchronously via the rotary table body 4, facilitating workpiece processing. During the operation of the stepper motor 6, heat is generated between the first bevel gear 8 and the second bevel gear 9. At this time, the cooling fan 12 starts running, effectively cooling the first bevel gear 8 and the second bevel gear 9, thereby preventing the first bevel gear 8 and the second bevel gear 9 from overheating. Overheating of gear 9 affects the rotational accuracy of turntable body 4, while extending the service life of first bevel gear 8 and second bevel gear 9. When the tilt angle of turntable body 4 needs to be adjusted, the angle of turntable body 4 can be quickly and easily positioned and adjusted by the cooperation of top plate 27, locking block 29, rotating gear 26, dial 32 and indicator needle 31, without the need for motors or other equipment, effectively reducing the overall operating cost of the device. Moreover, the angle of turntable body 4 can be accurately adjusted without the need for operators to have extensive adjustment experience, further improving the overall practicality and ease of use of the device.

[0045] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A precision turntable for rapid positioning, comprising a base (1), characterized in that, Support plates (2) are symmetrically mounted on the upper surface of the base (1). Rotating rods (25) are rotatably connected to opposite sides of each of the two support plates (2). Support frames (15) are fixedly connected to the other ends of each of the two rotating rods (25). A chassis (3) is fixedly connected between the two support frames (15). A turntable body (4) is located directly above the chassis (3). The base also includes: A drive assembly is located at the bottom of the chassis (3) and is used to drive the turntable body (4) to rotate; A heat dissipation component is disposed at the bottom of the drive component and is used to dissipate heat from the components inside the drive component. An adjustment component is provided on one side of the two support plates (2) and is used to position and adjust the tilt angle of the turntable body (4).

2. The precision rotary table for rapid positioning according to claim 1, characterized in that, The drive assembly includes a drive box (5) fixedly connected to the bottom of the chassis (3). A drive rod (10) is rotatably connected to the inner wall of the drive box (5). The other end of the drive rod (10) extends to the outside of the chassis (3) and is fixedly connected to the bottom of the turntable body (4). A stepper motor (6) is fixedly connected to the surface of the drive box (5). A transmission rod (7) is rotatably connected to the inner side wall of the drive box (5). The transmission rod (7) is driven by the stepper motor (6). A first bevel gear (8) is fixedly connected to the other end of the transmission rod (7). A second bevel gear (9) meshing with the first bevel gear (8) is fixedly connected to the outer wall of the drive rod (10).

3. The precision rotary table for rapid positioning according to claim 1, characterized in that, The upper surface of the chassis (3) is provided with multiple movable grooves for installing rolling balls (11), and the outer walls of the multiple rolling balls (11) are in contact with the bottom of the turntable body (4).

4. A precision rotary table for rapid positioning according to claim 2, characterized in that, The heat dissipation assembly includes cooling fans (12) symmetrically mounted at the bottom of the drive box (5).

5. A precision rotary table for rapid positioning according to claim 2, characterized in that, Multiple positioning frames (16) are fixedly connected to the surface of the drive box (5). Each of the multiple positioning frames (16) has a connecting plate (14) inserted into it. A dustproof mesh cover (13) is fixedly connected between the multiple connecting plates (14). The dustproof mesh cover (13) covers the outside of the drive box (5).

6. A precision rotary table for rapid positioning according to claim 5, characterized in that, The drive box (5) is symmetrically equipped with fixing blocks (17). The inner wall of the fixing block (17) is fixedly connected with a slide rod (18). The outer wall of the slide rod (18) is slidably connected with a contact plate (19). The slide rod (18) is sleeved with a return spring (20). The return spring (20) abuts between the contact plate (19) and the fixing block (17). The surface of the contact plate (19) is symmetrically equipped with side plates (21). The surface of each pair of side plates (21) is fixedly connected with a pull plate (22). One side of the pull plate (22) is fixedly connected with a pull ring. The other side of the pull plate (22) is fixedly connected with multiple insertion rods (23). The surfaces of the positioning frame (16) and the connecting plate (14) are all provided with slots for the insertion rods (23) to move.

7. A precision rotary table for rapid positioning according to claim 1, characterized in that, The adjustment assembly includes a locking plate (24) fixedly installed on opposite sides of two support plates (2). Connecting rods (28) are symmetrically slidably inserted into the upper surface of the locking plate (24). A top plate (27) is fixedly connected to the top of each pair of connecting rods (28). A locking block (29) is fixedly connected to the bottom of each pair of connecting rods (28). A rotating gear (26) is fixedly connected to the outer wall of the rotating rod (25). A slot for engaging the rotating gear (26) is provided at the bottom of the locking block (29). An abutting spring (30) is sleeved on the outside of the connecting rod (28). The abutting spring (30) abuts against the locking block (29) and the locking plate (24).

8. A precision rotary table for rapid positioning according to claim 1, characterized in that, The outer wall of the rotating rod (25) is fixedly connected to a dial (32), and the upper surface of the support plate (2) is fixedly installed with an indicator needle (31) that cooperates with the dial (32).

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