An automatic torsion spring device

Abstract

This utility model relates to an automatic torsion spring torsion device, comprising an outer cylinder and an inner cylinder coaxially arranged with their upper end faces flush. The inner cylinder has a positioning shaft with a protruding top, and the upper end face of the positioning shaft has a clamping groove. The positioning shaft is connected to a first rotating mechanism for driving its rotation. A stop block is provided on one side of the upper end face of the outer cylinder, and a slot along the rotation direction of the torsion spring is provided on one side of the stop block. The outer cylinder is connected to a second rotating mechanism for driving its rotation. The central arm of the torsion spring is engaged in the clamping groove, thereby limiting the torsion spring and preventing deflection. The first rotating mechanism drives the positioning shaft to rotate, and the positioning shaft cooperates with the stop block on the outer cylinder to torsion the torsion spring, thereby greatly improving working efficiency.

Description

Technical Field

[0001] This utility model relates to the field of automation equipment technology, and in particular to an automatic torsion spring device. Background Technology

[0002] A torsion spring is a mechanical spring whose main function is to store and release rotational energy, or in other words, to withstand torsional torque. When it is rotated (torsed) about its axis, it generates a counter-resisting torque, attempting to return the spring to its initial position. Torsion springs require torsional compression during installation. Currently, torsion spring torsion is mostly done manually, requiring workers to use pliers or tweezers. This process is cumbersome, highly dependent on worker skill, and inefficient. Therefore, this invention proposes an automatic torsion spring torsion device. Utility Model Content

[0003] The main objective of this invention is to provide an automatic torsion spring device to solve the problems mentioned in the background art.

[0004] This utility model achieves the above-mentioned objective through the following technical solution: an automatic torsion spring device, comprising an outer cylinder and an inner cylinder coaxially arranged and with their upper end faces flush, wherein the inner cylinder is provided with a positioning shaft with a protruding top, the upper end face of the positioning shaft is provided with a clamping groove, the positioning shaft is connected to a first rotating mechanism for driving its rotation, a stop block is provided on one side of the upper end face of the outer cylinder, a slot is provided on one side of the stop block along the rotation direction of the torsion spring, and the outer cylinder is connected to a second rotating mechanism for driving its rotation.

[0005] Preferably, the first rotating mechanism includes a vertically arranged mounting plate, a first support plate is horizontally arranged on the front side of the mounting plate, a drive shaft is vertically rotatably arranged on the first support plate, the drive shaft is driven by a first servo motor, the top end of the drive shaft is coaxially fixed with the inner cylinder, the upper end face of the inner cylinder is provided with a limiting groove aligned with the clamping groove, a limiting piece is connected in the limiting groove, and the top end of the limiting piece is higher than the upper end face of the inner cylinder.

[0006] Preferably, the second rotating mechanism includes a second support plate disposed above the first support plate, a support sleeve vertically fixed on the second support plate, a through hole coaxial with the support sleeve on the second support plate, a drive sleeve rotatably disposed coaxially inside the support sleeve, a drive shaft passing through the drive sleeve, a second servo motor disposed at the bottom end of the second support plate via a bracket, a drive wheel and a driven wheel disposed at the output end of the second servo motor and the bottom end of the drive sleeve respectively, the drive wheel and the driven wheel being connected by a belt, the top of the drive sleeve being rotatably connected to the top end of the support sleeve via a bearing seat, and the outer cylinder being coaxially fixed to the top end of the drive sleeve via a pressure cap.

[0007] Preferably, the lifting mechanism includes a frame, on which a slider is slidably connected via a vertical slide rail. A lead screw is vertically rotatably mounted on the frame. The slider has a screw hole, through which the lead screw passes and is threaded into the slider. The lead screw is driven by a third servo motor. A U-shaped connecting plate is fixed to the front of the slider, and both ends of the U-shaped connecting plate are fixed to the back of the mounting plate.

[0008] The beneficial effects of this utility model are as follows: the torsion spring is sleeved on the positioning shaft, and the central arm of the torsion spring is inserted into the clamping groove, thereby limiting the torsion spring and preventing deflection. The first rotating mechanism drives the positioning shaft to rotate, and the positioning shaft cooperates with the stop block on the outer cylinder to twist the torsion spring. The lifting mechanism sends the twisted spring into the installation position. The first rotating mechanism resets, and the second rotating mechanism drives the outer cylinder to rotate again, thereby causing the pin of the torsion spring to exit the groove on the stop block, facilitating the removal of the outer cylinder. This automatically realizes the torsion installation of the torsion spring, greatly improving work efficiency. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the automatic torsion spring device for an embodiment.

[0010] Figure 2 This is a schematic diagram of a torsion spring structure.

[0011] Figure 3 This is a schematic diagram of the torsion mechanism.

[0012] Figure 4 This is a schematic diagram of the first rotating mechanism.

[0013] Figure 5 This is a schematic diagram of the second rotating mechanism.

[0014] The numbers in the image represent: 1. Outer cylinder; 2. Inner cylinder; 3. Positioning shaft; 4. Clamping groove; 5. First rotating mechanism; 6. Stop block; 7. Slot; 8. Second rotating mechanism; 9. Torsion spring body; 10. Pin; 11. Center arm; 12. Lifting mechanism; 13. Mounting plate; 14. First support plate; 15. Drive shaft; 16. First servo motor; 17. Limiting groove; 18. Limiting piece; 19. Second support plate; 20. Support sleeve; 21. Drive sleeve; 22. Second servo motor; 23. Drive wheel; 24. Driven wheel; 25. Belt; 26. Bearing seat; 27. Stand; 28. Slider; 29. ​​Third servo motor; 30. U-shaped connecting plate; 31. Torsion mechanism; 32. Pressure cap. Detailed Implementation

[0015] The present invention will be further described in detail below with reference to specific embodiments.

[0016] Example: like Figure 1-5 As shown, this utility model discloses an automatic torsion spring torsion device, comprising a torsion mechanism 31 and a lifting mechanism 12 for driving the torsion mechanism 31 to rise and fall. The torsion mechanism 31 includes an outer cylinder 1 and an inner cylinder 2 coaxially arranged and with their upper end faces flush. The inner cylinder 2 is provided with a positioning shaft 3 with a protruding top end. The upper end face of the positioning shaft 3 is provided with a clamping groove 4. The positioning shaft 3 is connected to a first rotating mechanism 5 for driving its rotation. A stop block 6 is provided on one side of the upper end face of the outer cylinder 1. A slot 7 is provided on one side of the stop block 6 along the rotation direction of the torsion spring. The outer cylinder 1 is connected to a second rotating mechanism 8 for driving its rotation. The torsion spring is sleeved on the positioning shaft 3. The torsion spring includes a torsion spring body 9, a pin 10, and a central arm 11. The spring is inserted into the clamping groove 4 to prevent it from deflecting. The first rotating mechanism drives the positioning shaft 3 to rotate, thereby adjusting the angle of the clamping groove 4 to accommodate the center arm at different angles. The second rotating mechanism 8 drives the outer cylinder 1 to rotate, and the pin of the spring is inserted into the clamping groove 7. The second rotating mechanism 8 continues to rotate, thereby twisting the spring. The lifting mechanism 12 drives the torsion mechanism 31 to rise, thereby sending the spring into the installation position for installation. After installation, the second rotating mechanism 8 drives the outer cylinder 1 to rotate, and the pin of the spring exits the clamping groove 7. The lifting mechanism 12 drives the positioning shaft 3 and the outer cylinder 1 to descend away from the installation position, thereby completing the installation of the spring.

[0017] The first rotating mechanism 5 includes a vertically arranged mounting plate 13. A first support plate 14 is horizontally arranged on the front side of the mounting plate 13. A drive shaft 15 is vertically rotatably arranged on the first support plate 14. The drive shaft 15 is driven by a first servo motor 16. The top end of the drive shaft 15 is coaxially fixed with the inner cylinder 2. The upper end face of the inner cylinder 2 is provided with a limiting groove 17 aligned with the clamping groove 4. A limiting piece 18 is connected in the limiting groove 17 to ensure that the inner cylinder 2 can transmit torque to the positioning shaft 3. The top end of the limiting piece 18 is higher than the upper end face of the inner cylinder 2, thereby raising the torsion spring.

[0018] The second rotating mechanism 8 includes a second support plate 19 disposed above the first support plate 14. A support sleeve 20 is vertically fixed on the second support plate 19. A through hole coaxial with the support sleeve 20 is provided on the second support plate 19. A drive sleeve 21 is rotatably disposed coaxially inside the support sleeve 20. A drive shaft 15 passes through the drive sleeve 21. A second servo motor 22 is provided at the bottom end of the second support plate 19 via a bracket. A drive wheel 23 and a driven wheel 24 are respectively provided at the output end of the second servo motor 22 and the bottom end of the drive sleeve 21. The drive wheel 23 and the driven wheel 24 are connected by a belt 25. The top of the drive sleeve 21 is rotatably connected to the top of the support sleeve 20 via a bearing seat 26. The outer cylinder 1 is coaxially fixed at the top end of the drive sleeve 21 via a pressure cap 32. The second servo motor 22 drives the drive sleeve 21 to rotate, thereby pushing the pin of the torsion spring through the stop block 6 to torsion the torsion spring.

[0019] The lifting mechanism 12 includes a frame 27, on which a slider 28 is slidably connected via a vertical slide rail. A lead screw (not shown in the figure) is vertically rotatably mounted on the frame 27. The slider 28 has a screw hole, through which the lead screw passes and is threadedly engaged with the slider 28. The lead screw is driven by a third servo motor 29. The output end of the third servo motor 29 and the bottom end of the lead screw are connected to a meshing gear set. A U-shaped connecting plate 30 is fixed to the front of the slider 28, and both ends of the U-shaped connecting plate 30 are fixed to the back of the mounting plate 13. The third servo motor 29 drives the lead screw to rotate, thereby driving the mounting plate 13 to lift the torsion mechanism 31, sending the torsion spring into the mounting groove on the workpiece.

[0020] The above descriptions are merely some embodiments of this utility model. For those skilled in the art, various modifications and improvements can be made without departing from the inventive concept of this utility model, and all such modifications and improvements fall within the protection scope of this utility model.

Claims

1. A torsion spring automatic twisting device comprising a torsion mechanism and a lifting mechanism for driving the lifting of the torsion mechanism, characterized in that: The torsion mechanism includes an outer cylinder and an inner cylinder arranged coaxially and with their upper surfaces flush. The inner cylinder has a positioning shaft with a protruding top. The upper surface of the positioning shaft has a clamping groove. The positioning shaft is connected to a first rotation mechanism for driving its rotation. A stop block is provided on one side of the upper surface of the outer cylinder. A slot is provided on one side of the stop block along the rotation direction of the torsion spring. The outer cylinder is connected to a second rotation mechanism for driving its rotation.

2. A torsion spring automatic twisting device according to claim 1, characterized in that: The first rotating mechanism includes a vertically arranged mounting plate, a first support plate horizontally arranged on the front side of the mounting plate, a drive shaft vertically rotatably arranged on the first support plate, the drive shaft being driven by a first servo motor, the top end of the drive shaft being coaxially fixed with the inner cylinder, the upper end face of the inner cylinder being provided with a limiting groove aligned with the clamping groove, a limiting piece being connected in the limiting groove, the top end of the limiting piece being higher than the upper end face of the inner cylinder.

3. A torsion spring automatic twisting device according to claim 2, wherein: The second rotating mechanism includes a second support plate disposed above the first support plate, a support sleeve vertically fixed on the second support plate, a through hole coaxial with the support sleeve on the second support plate, a drive sleeve rotatably disposed coaxially inside the support sleeve, a drive shaft passing through the drive sleeve, a second servo motor disposed at the bottom end of the second support plate via a bracket, a drive wheel and a driven wheel disposed at the output end of the second servo motor and the bottom end of the drive sleeve respectively, the drive wheel and the driven wheel being connected by a belt, the top of the drive sleeve being rotatably connected to the top end of the support sleeve via a bearing seat, and the outer cylinder being coaxially fixed to the top end of the drive sleeve via a pressure cap.

4. A torsion spring automatic twisting device according to claim 2, wherein: The lifting mechanism includes a frame, on which a slider is slidably connected via a vertical slide rail. A lead screw is vertically rotatably mounted on the frame. The slider has a screw hole, through which the lead screw passes and is threaded into the slider. The lead screw is driven by a third servo motor. A U-shaped connecting plate is fixed to the front of the slider, and both ends of the U-shaped connecting plate are fixed to the back of the mounting plate.

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