Locking device for driving shaft machining

Abstract

The utility model discloses a locking device for driving shaft machining, which is applied to the technical field of driving shaft machining and comprises a base, one side of the top of the base is in bolted connection with a fixed support, and the other side of the top of the base is in sliding connection with a sliding support. A first motor in bolted connection with the base is arranged on the side, away from the sliding support, of the bottom of the fixed support. When sliding adjustment is conducted on the top of the base according to the length of the driving shaft, the protective belt wound on the surface of the winding wheel can be pulled out to shield the top of the base. And therefore, chippings generated by machining of the driving shaft are prevented from falling into the base, the chippings can be conveniently cleaned, and meanwhile it is guaranteed that the sliding support slides smoothly. And the four trapezoidal clamping plates are driven to get close to each other to clamp the two ends of the driving shaft. Therefore, the driving shaft cannot deviate towards the two ends and cannot deviate up and down or left and right, the driving shaft is thoroughly locked and fixed, and the stability of the driving shaft in the machining process is guaranteed.

Description

Technical Field

[0001] This utility model belongs to the field of drive shaft machining technology, and specifically relates to a locking device for drive shaft machining. Background Technology

[0002] The drive shaft is an important component in the mechanical field, which can transmit the torque and rotational motion output by the electric motor.

[0003] Currently, Chinese utility model patent CN217647970U discloses a locking device for machining drive shafts. Existing drive shafts are limited and fixed during machining to prevent displacement.

[0004] A common method for limiting drive shafts is to clamp and limit them at both ends. While this prevents the drive shaft from moving in either direction, it allows for some vertical or horizontal movement, resulting in poor stability and inability to achieve a complete lock. Furthermore, because drive shafts come in various models, their length needs to be adjusted before clamping. However, this can cause machining debris from the drive shaft surface to enter the adjustment groove, leading to blockage and jamming. This prevents the shaft from being adjusted for its length, impacting its usability. Utility Model Content

[0005] The purpose of this utility model is to provide a locking device for drive shaft machining, which has the advantages of facilitating the clamping and locking of the drive shaft and preventing the machining debris from falling into the slide groove.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a locking device for machining a drive shaft includes a base, a fixed support is bolted to one side of the top of the base, a sliding support is slidably connected to the other side of the top of the base, a first motor is bolted to the base on the bottom side of the fixed support away from the sliding support, a threaded shaft is bolted to the output end of the first motor, a threaded sleeve is threaded onto the surface of the threaded shaft and bolted to the bottom of the sliding support, a protective belt is bolted to the bottom side of the sliding support near the fixed support, a take-up wheel is rotatably connected to the bottom of the inner cavity of the fixed support, and the end of the protective belt away from the sliding support is fixedly wrapped around the surface of the take-up wheel.

[0007] By employing the above technical solution, when the drive shaft is slidably adjusted at the top of the base according to its length, the protective strip wound on the surface of the take-up wheel can be pulled out to cover the top of the base. This prevents debris from the drive shaft from falling into the base, facilitating debris cleaning and ensuring smooth sliding of the sliding support. Four trapezoidal clamping plates are brought closer together to clamp both ends of the drive shaft. This prevents the drive shaft from shifting to either end, nor from shifting vertically or horizontally, thus completely locking and fixing the drive shaft and ensuring stability during processing.

[0008] The present invention is further configured such that: a rotating seat is rotatably connected to the top of both the fixed support and the sliding support on their respective sides; a second motor is bolted to the side of the sliding support away from the fixed support; the output end of the second motor is bolted to the rotating seat inside the sliding support; four trapezoidal clamping plates are slidably connected to the ends of both rotating seats that are close to each other; four threaded rods are symmetrically rotatably connected inside the two rotating seats; a first bevel gear is bolted to the ends of the four threaded rods that are close to each other; a second bevel gear is meshed with the rotating seat on the side of the first bevel gear away from the trapezoidal clamping plate; and threaded rings welded to the trapezoidal clamping plates are threaded onto the surface of each threaded rod.

[0009] By adopting the above technical solution, the drive shaft cannot be shifted to either end, nor can it be shifted vertically or horizontally, thus completely locking and fixing the drive shaft.

[0010] The present invention is further configured such that: a positioning wheel that is rotatably connected to the bottom of the fixed support near the sliding support is connected to the protective belt.

[0011] By adopting the above technical solution, the frictional force of the protective belt sliding inside the fixed support is reduced, and the sliding stability is improved.

[0012] The present invention is further configured such that mounting plates are welded to both sides of the bottom of the base.

[0013] The above technical solution facilitates the mounting of the base onto the drive shaft machining table by bolting it to the inside of the mounting plate.

[0014] The present invention is further configured such that: a turntable bolted to a winding wheel is rotatably connected to one side of the fixed support, and a fastening bolt that is engaged with the fixed support is threaded through the interior of the turntable.

[0015] Using the above technical solution, the rotating turntable drives the winding wheel to rotate, so that after the sliding support slides close to the fixed support, the winding wheel can be rotated to actively wind and retract the protective belt. At the same time, rotating the fastening bolts can tighten the turntable to prevent the protective belt from loosening.

[0016] The present invention is further configured such that ventilation meshes are bolted to both the side of the base near the first motor and the side of the sliding support near the second motor.

[0017] The above technical solution is used to ventilate and dissipate heat for the first and second motors, while reducing the amount of dust entering the interior.

[0018] The present invention is further configured such that the top of each of the two rotating seats is rotatably connected to a hexagonal bolt head bolted to the same threaded rod.

[0019] The above technical solution facilitates the adjustment of the trapezoidal clamp by rotating the threaded rod through the twisting of the hexagonal bolt head.

[0020] In summary, this utility model has the following beneficial effects:

[0021] 1. By sliding and adjusting the top of the base according to the length of the drive shaft, the protective strip wound on the surface of the take-up wheel can be pulled out to cover the top of the base. This prevents the debris produced by the drive shaft from falling into the base, which not only facilitates the cleaning of debris but also ensures smooth sliding of the sliding support;

[0022] 2. By moving four trapezoidal clamping plates closer together, the two ends of the drive shaft are clamped. This prevents the drive shaft from shifting to either end, nor from shifting vertically or horizontally, thus completely locking and fixing the drive shaft and ensuring its stability during machining. Attached Figure Description

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

[0024] Figure 2 This is a cross-sectional view of the structure of this utility model;

[0025] Figure 3 This is a partial structural side sectional view of this utility model;

[0026] Figure 4 This is a utility model Figure 2 Enlarged view of point A in the image.

[0027] Reference numerals in the attached drawings: 1. Base; 2. Fixed support; 3. Sliding support; 4. First motor; 5. Threaded shaft; 6. Threaded sleeve; 7. Rewinding wheel; 8. Protective belt; 9. Rotating seat; 10. Second motor; 11. Threaded rod; 12. First bevel gear; 13. Second bevel gear; 14. Threaded ring; 15. Trapezoidal clamp; 16. Ventilation mesh; 17. Hexagonal bolt head; 18. Fastening bolt; 19. Positioning wheel; 20. Mounting plate; 21. Turntable. Detailed Implementation

[0028] The present invention will be further described in detail below with reference to the accompanying drawings.

[0029] Example 1:

[0030] refer to Figure 1 , Figure 2 , Figure 4 A locking device for machining a drive shaft includes a base 1. A fixed support 2 is bolted to one side of the top of the base 1, and a sliding support 3 is slidably connected to the other side of the top of the base 1. A first motor 4, bolted to the base 1, is located on the bottom side of the fixed support 2 away from the sliding support 3. A threaded shaft 5 is bolted to the output end of the first motor 4. A threaded sleeve 6, bolted to the bottom of the sliding support 3, is threaded onto the surface of the threaded shaft 5. A protective strip 8 is bolted to the bottom of the sliding support 3 near the fixed support 2. A take-up wheel 7 is rotatably connected to the bottom of the inner cavity of the fixed support 2. The end of the protective strip 8 away from the sliding support 3 is fixedly wrapped around the surface of the take-up wheel 7. By sliding and adjusting the top of the base 1 according to the length of the drive shaft, the protective strip 8 wound on the surface of the take-up wheel 7 can be pulled out to cover the top of the base 1. This prevents the debris produced by the drive shaft from falling into the interior of the base 1, facilitating debris cleaning and ensuring smooth sliding of the sliding support 3.

[0031] refer to Figure 4 A positioning wheel 19, which is rotatably connected to the bottom of the fixed support 2 near the sliding support 3 and is slidably connected to the protective belt 8, is provided. This reduces the friction of the protective belt 8 sliding inside the fixed support 2 and improves sliding stability.

[0032] refer to Figure 1 Mounting plates 20 are welded to both sides of the bottom of the base 1. This allows the base 1 to be mounted on the drive shaft machining table by bolting it to the inside of the mounting plates 20.

[0033] refer to Figure 1 A turntable 21, bolted to a take-up reel 7, is rotatably connected to one side of the fixed support 2. A fastening bolt 18, threaded through the turntable 21 and engaging with the fixed support 2, is connected to the turntable 21. Rotating the turntable 21 drives the take-up reel 7 to rotate, allowing the take-up reel 7 to actively wind and retract the protective belt 8 after the sliding support 3 slides close to the fixed support 2. Simultaneously, rotating the fastening bolt 18 tightens the turntable 21, preventing the protective belt 8 from loosening.

[0034] Brief description of the usage process: By turning on the first motor 4, the threaded shaft 5 is rotated, causing the threaded shaft 5 to engage with the threaded sleeve 6, which in turn causes the sliding support 3 to slide left and right on the top of the base 1. This can be adjusted according to the length of the drive shaft, allowing the drive shaft to be clamped between the fixed support 2 and the sliding support 3. At the same time, as the sliding support 3 slides away from the fixed support 2, the protective strip 8 wound on the surface of the take-up wheel 7 is pulled out, which can block the bottom of the sliding groove where the threaded sleeve 6 slides inside the base 1, preventing the debris produced by the drive shaft from falling into the interior of the base 1.

[0035] Example 2:

[0036] refer to Figure 1 , Figure 2 , Figure 3 A locking device for machining a drive shaft includes a fixed support 2 and a sliding support 3, both with rotating seats 9 rotatably connected to each other on their top sides. A second motor 10 is bolted to the side of the sliding support 3 away from the fixed support 2. The output end of the second motor 10 is bolted to the rotating seat 9 inside the sliding support 3. Four trapezoidal clamping plates 15 are slidably connected to the ends of the two rotating seats 9 that are close to each other. Four threaded rods 11 are symmetrically rotatably connected inside the two rotating seats 9. A first bevel gear 12 is bolted to the end of each of the four threaded rods 11 that is close to each other. A second bevel gear 13, rotatably connected to the rotating seat 9, meshes with the side of the first bevel gear 12 away from the trapezoidal clamping plate 15. Threaded rings 14, welded to the trapezoidal clamping plates 15, are threaded onto the surface of each threaded rod 11. By moving the four trapezoidal clamping plates 15 closer together, the two ends of the drive shaft are clamped. This prevents the drive shaft from shifting to either end, and also prevents it from shifting vertically or horizontally, thus completely locking and fixing the drive shaft and ensuring stability during machining.

[0037] refer to Figure 1 , Figure 2 Ventilation mesh 16 is bolted to both the base 1 near the first motor 4 and the sliding support 3 near the second motor 10. This is used for ventilation and heat dissipation of the first motor 4 and the second motor 10, while reducing dust entering the interior.

[0038] refer to Figure 1 , Figure 3 Both rotating seats 9 have hexagonal bolt heads 17 rotatably connected to the top of the threaded rod 11. This allows the threaded rod 11 to be rotated by turning the hexagonal bolt head 17, thereby adjusting the trapezoidal clamping plate 15.

[0039] Brief description of the usage process: The drive shaft is placed between the fixed support 2 and the sliding support 3. Then, rotating the threaded rod 11 drives the first bevel gear 12 and the second bevel gear 13 to mesh and transmit power, thereby driving the four threaded rods 11 inside the rotating seat 9 to rotate synchronously. Then, the threaded rods 11 engage with the threaded ring 14, thereby driving the four trapezoidal clamping plates 15 to move closer together and clamp the two ends of the drive shaft. At the same time, since one side of the four trapezoidal clamping plates 15 clamping the drive shaft is trapezoidal, during the clamping process, the two ends of the drive shaft can also be squeezed and pushed to the center of the fixed support 2 and the sliding support 3, so that the drive shaft cannot shift to either end, nor can it shift vertically or horizontally, thus completely locking and fixing the drive shaft. Finally, by turning on the second motor 10, the two rotating seats 9 are driven to rotate inside the fixed support 2 and the sliding support 3 respectively, so that they drive the drive shaft to rotate for processing.

[0040] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. A locking device for machining a drive shaft, comprising a base (1), characterized in that: A fixed support (2) is bolted to one side of the top of the base (1), and a sliding support (3) is slidably connected to the other side of the top of the base (1). A first motor (4) is bolted to the base (1) on the side of the bottom of the fixed support (2) away from the sliding support (3). A threaded shaft (5) is bolted to the output end of the first motor (4). A threaded sleeve (6) is threaded onto the surface of the threaded shaft (5) and bolted to the bottom of the sliding support (3). A protective belt (8) is bolted to the side of the bottom of the sliding support (3) close to the fixed support (2). A winding wheel (7) is rotatably connected to the bottom of the inner cavity of the fixed support (2). The end of the protective belt (8) away from the sliding support (3) is fixedly wrapped around the surface of the winding wheel (7).

2. The locking device for machining a drive shaft according to claim 1, characterized in that: The fixed support (2) and the sliding support (3) are rotatably connected to rotating seats (9) on their respective sides. The side of the sliding support (3) away from the fixed support (2) is bolted with a second motor (10). The output end of the second motor (10) is bolted to the rotating seat (9) inside the sliding support (3). The two rotating seats (9) are slidably connected to four trapezoidal plates (15) at their respective ends. The interiors of the two rotating seats (9) are symmetrically connected to four threaded rods (11). The four threaded rods (11) are bolted to the respective ends of the four threaded rods (11). The side of the first bevel gear (12) away from the trapezoidal plates (15) is meshed with a second bevel gear (13) rotatably connected to the rotating seat (9). The surface of each threaded rod (11) is threaded with a threaded ring (14) welded to the trapezoidal plates (15).

3. The locking device for machining a drive shaft according to claim 1, characterized in that: The bottom of the fixed support (2) near the sliding support (3) is rotatably connected to a positioning wheel (19) that is slidably connected to the protective belt (8).

4. The locking device for machining a drive shaft according to claim 1, characterized in that: Mounting plates (20) are welded to both sides of the bottom of the base (1).

5. A locking device for machining a drive shaft according to claim 1, characterized in that: One side of the fixed support (2) is rotatably connected to a turntable (21) bolted to the winding wheel (7), and the interior of the turntable (21) is threaded with a fastening bolt (18) that is engaged with the fixed support (2).

6. A locking device for machining a drive shaft according to claim 2, characterized in that: Ventilation mesh (16) is bolted to the side of the base (1) near the first motor (4) and the side of the sliding support (3) near the second motor (10).

7. A locking device for machining a drive shaft according to claim 2, characterized in that: The top of each of the two rotating seats (9) is rotatably connected to a hexagonal bolt head (17) that is bolted to the threaded rod (11).

Images