A lifting tool for machining
By combining the design of the lifting device bracket, folding frame and servo motor, the problems of high cost and difficulty in angle adjustment of existing machining lifting devices are solved, realizing rapid clamping and flexible angle adjustment, thus improving processing efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUXI QICHENG TECH CO LTD
- Filing Date
- 2025-09-02
- Publication Date
- 2026-06-30
AI Technical Summary
Existing machining lifting fixtures rely too heavily on multiple motors to drive the clamping mechanism, resulting in high costs and an inability to quickly clamp and lift workpieces. Furthermore, the workpiece angle cannot be adjusted according to the situation during the machining process.
The design employs a combination of a lifting bracket, a folding frame, a servo motor, a synchronous pulley, and a clamping plate. The servo motor drives the synchronous pulley to achieve rotational adjustment of the clamping plate and angle adjustment of the workpiece.
It enables rapid clamping and angle adjustment, reducing costs and improving processing efficiency and flexibility.
Smart Images
Figure CN224429970U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of lifting tools, specifically to a lifting tool for machining. Background Technology
[0002] Lifting tools in machining are specialized tools used for lifting, moving, or securing workpieces during the manufacturing, assembly, and transportation processes. They directly bear the weight of the workpiece through their mechanical structure and utilize mechanical principles to achieve safe and efficient workpiece transfer without relying on sensors, hydraulic / pneumatic systems, or electronic controls.
[0003] A search revealed a utility model of a lifting device for machining, with announcement number CN222922778U. The device includes a support leg and a limiting frame fixed vertically to the top of the support leg, with a driving mechanism on one side of the limiting frame. Two movable blocks are located at the bottom of the driving mechanism, with a vertically fixed limiting plate at the bottom of each block. A horizontally arranged first threaded rod is slidably connected to the inner wall of the limiting plate. This utility model facilitates the driving of a clamping mechanism by providing a driving mechanism, and the movable blocks and limiting plates facilitate the clamping mechanism's gripping of mechanical parts. This avoids insufficient flexibility in actual use, which could lead to low efficiency in machining mechanical parts. The use of the first threaded rod, locking block, and locking ring facilitates the locking and fixing of the clamping mechanism, making it easy to replace and improving the overall practicality.
[0004] In the above comparative cases, the lifting fixtures used in machining rely too heavily on multiple motors to drive the clamping mechanism for lifting and clamping. This not only increases the overall cost, but also makes it impossible to quickly clamp and lift the workpiece, and the angle of the mechanism cannot be adjusted according to the machining situation during the machining process.
[0005] Therefore, it is necessary to invent a mechanical lifting tool to solve the above problems. Utility Model Content
[0006] The purpose of this utility model is to provide a lifting device for machining. A crane is used to place the entire lifting device bracket and the lower clamping plate above the workpiece to be processed. Then, the handle is turned to release the rotation of the lifting device bracket and the folding frame. Next, the clamping plate is placed on both sides of the workpiece. The crane then pulls the hanging ring and the lifting device bracket, causing the two sets of folding frames to fold and retract, pulling the two sets of connecting blocks and the lower clamping plate closer together, thus clamping and fixing the workpiece. The entire workpiece can then be lifted. Next, the angle of the workpiece needs to be adjusted according to the required machining angle. By turning on the servo motor switch, the first synchronous pulley is driven by the external synchronous belt and the second synchronous pulley, causing the second synchronous pulley to drive the transmission rod and the inner connecting plate and clamping plate to rotate. The workpiece rotates along with the clamping plate, facilitating the machining process. This solves the problem in the comparative case mentioned in the background art, where the lifting device relies too heavily on multiple motors to drive the clamping mechanism for lifting and clamping, which not only increases the overall cost but also makes it difficult to quickly clamp and lift the workpiece and adjust the angle of the workpiece according to the machining process.
[0007] To achieve the above objectives, this utility model provides the following technical solution: a lifting tool for machining, including a lifting tool bracket for supporting the entire machining lifting tool;
[0008] Hanging rings are fixed above the lifting device brackets for suspension. The lifting device brackets are rotatably connected to the outside of the brackets. Folding frames are hinged to both sides of the two sets of lifting device brackets, and the two sets of folding frames are hinged to each other. Cross brackets are hinged to the other end of the two sets of folding frames, and a connecting block is hinged to one end of each folding frame.
[0009] A fixing block is fixed to the lower end of the connecting block. A sleeve is movably fitted on the outside of the fixing block. A servo motor is fixedly installed on the rear side of the sleeve. A first synchronous pulley is fixedly connected to the output end of the servo motor. A synchronous belt is fitted on the outside of the first synchronous pulley. A second synchronous pulley is fitted on the other inner side of the synchronous belt. A transmission rod is fixedly connected to the rear side of the second synchronous pulley. A connecting plate is fixedly connected to the other end of the transmission rod. A clamping plate is movably installed on the outside of the connecting plate.
[0010] Preferably, a locking block is fixedly connected to the outer side of one of the sets of folding frames, and the handle is movably latched to the locking block.
[0011] Preferably, the surface of the cross bracket is provided with a limiting groove, wherein a set of the connecting blocks slides in a limiting groove.
[0012] Preferably, each of the fixing blocks has a hole on its surface, and a pin passes through the outside of the sleeve and passes through the fixing block.
[0013] Preferably, the transmission rod is rotatably connected to the sleeve, a telescopic rod is slidably connected inside the connecting plate, the rear side of the telescopic rod is fixedly connected to the front end of the telescopic rod, and a spring is sleeved on the outside of the telescopic rod, with the spring located between the clamping plate and the connecting plate.
[0014] Preferably, the clamping plates are provided in two sets, and anti-slip rubber pads are pasted inside the two sets of clamping plates.
[0015] The technical effects and advantages provided by this utility model in the above technical solution are as follows:
[0016] This invention, through the arrangement of a lifting fixture bracket, a folding frame, a servo motor, a first synchronous pulley, a synchronous belt, a second synchronous pulley, a transmission rod, a connecting plate, and a clamping plate, not only enables rapid clamping but also allows for the rotational adjustment of the mechanical workpiece according to the processing requirements. The entire lifting fixture bracket and the lower clamping plate are placed above the workpiece to be processed using a crane. Then, the handle is turned to release the rotation of the lifting fixture bracket and the folding frame. Next, the clamping plates are placed on both sides of the workpiece. Then, the crane pulls the hanging ring and the lifting fixture bracket, causing the two sets of folding frames to fold and retract, pulling the two sets of connecting blocks and the lower clamping plate closer together, thus clamping and fixing the workpiece. The entire workpiece can then be lifted. Next, the angle of the workpiece needs to be adjusted according to the required processing angle. By turning on the servo motor switch, the first synchronous pulley is driven by the external synchronous belt and the second synchronous pulley, causing the second synchronous pulley to drive the transmission rod and the inner connecting plate and clamping plate to rotate. The workpiece rotates along with the clamping plate, facilitating the processing of the workpiece. Attached Figure Description
[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.
[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0019] Figure 2 This is a schematic diagram of the lifting device support structure of this utility model;
[0020] Figure 3 This is a schematic diagram of the fixing block and sleeve structure of this utility model;
[0021] Figure 4 This is a schematic diagram of the structure of the first and second synchronous pulleys of this utility model;
[0022] Figure 5 This is a schematic diagram of the clamping plate structure of this utility model.
[0023] Explanation of reference numerals in the attached figures:
[0024] 1. Lifting bracket; 2. Hanging ring; 3. Handle; 4. Folding frame; 5. Locking block; 6. Cross bracket; 7. Connecting block; 8. Limiting groove; 9. Fixing block; 10. Insertion hole; 11. Sleeve; 12. Pin; 13. Servo motor; 14. First synchronous pulley; 15. Synchronous belt; 16. Second synchronous pulley; 17. Transmission rod; 18. Connecting plate; 19. Telescopic rod; 20. Clamping plate; 21. Spring; 22. Anti-slip rubber pad. Detailed Implementation
[0025] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.
[0026] This utility model provides, for example Figure 1-5 The illustrated lifting device for machining includes a lifting device bracket 1 for supporting the entire machining workpiece.
[0027] Hanging ring 2 is fixed above the lifting bracket 1 for suspension. The external rotatable connection of the lifting bracket 1 is a handle 3. The two sets of lifting brackets 1 are hinged to each other on both sides with folding frames 4, and the two sets of folding frames 4 are hinged to each other. The other end of the two sets of folding frames 4 is hinged to a cross bracket 6, and one end of the folding frame 4 is hinged to a connecting block 7.
[0028] A fixing block 9 is fixed to the lower end of the connecting block 7. A sleeve 11 is movably fitted on the outside of the fixing block 9. A servo motor 13 is fixedly installed on the rear side of the sleeve 11. A first synchronous pulley 14 is fixedly connected to the output end of the servo motor 13. A synchronous belt 15 is fitted on the outside of the first synchronous pulley 14. A second synchronous pulley 16 is fitted on the other inner side of the synchronous belt 15. A transmission rod 17 is fixedly connected to the rear side of the second synchronous pulley 16. A connecting plate 18 is fixedly connected to the other end of the transmission rod 17. A clamping plate 20 is movably installed on the outer side of the connecting plate 18. The entire lifting bracket 1 and the clamping plate 20 below are placed above the mechanical workpiece to be processed by a crane. Then, the handle 3 is turned to release the rotation of the lifting bracket 1 and the folding frame 4. Next, place the clamping plate 20 on both sides of the mechanical workpiece. Then, pull the hanging ring 2 and the lifting bracket 1 with the crane, so that the two sets of folding frames 4 fold and retract, pulling the two sets of connecting blocks 7 and the clamping plate 20 below closer to each other, so that the clamping plate 20 clamps and fixes the mechanical workpiece. At this time, the entire mechanical workpiece can be lifted. Then, the angle of the mechanical workpiece needs to be adjusted according to the angle required for processing. By turning on the servo motor 13 switch, the first synchronous pulley 14 drives the external synchronous belt 15 and the second synchronous pulley 16 to drive the transmission rod 17 to rotate with the inner connecting plate 18 and the clamping plate 20. The mechanical workpiece also rotates with the clamping plate 20, which facilitates the processing of the mechanical workpiece.
[0029] like Figure 1 and Figure 2 As shown, a locking block 5 is fixedly connected to the outside of one of the folding frames 4. The handle 3 is movablely latched to the locking block 5. When the lifting device is not in use, the handle 3 is turned to latch onto the locking block 5 outside the folding frame 4, thereby maintaining the locking between the lifting device bracket 1 and the folding frame 4.
[0030] like Figure 2 As shown, a limiting groove 8 is provided on the surface of the cross bracket 6. One set of connecting blocks 7 slides in the limiting groove 8. When the lifting rope pulls the hanging ring 2 and the lifting bracket 1, the lifting bracket 1 pulls the folding frame 4 to extend and fold through the hinge. When the folding frame 4 extends and folds, it pulls one set of connecting blocks 7 to move in the limiting groove 8 outside the cross bracket 6. The cross bracket 6 is provided with two sets, so that the two sets of cross brackets 6 unfold inside. This causes the connecting blocks 7 and the clamping plate 20 below to move closer to each other to clamp and fix the mechanical workpiece.
[0031] like Figure 3 As shown, the surface of the fixing block 9 is provided with insertion holes 10, and the outside of the sleeve 11 is penetrated by a pin 12, which also penetrates the fixing block 9. The height between the clamping plate 20 and the cross bracket 6 needs to be adjusted according to the different sizes of mechanical workpieces to avoid the inability to flip and adjust later. By pulling the sleeve 11 out of the fixing block 9, when the appropriate length is pulled out, the pin 12 penetrates the sleeve 11 and the inside of the fixing block 9 to limit and fix it.
[0032] like Figure 4 and Figure 5 As shown, the transmission rod 17 is rotatably connected to the sleeve 11, and the telescopic rod 19 is slidably connected inside the connecting plate 18. The rear side of the telescopic rod 19 is fixedly connected to the front end of the telescopic rod 19. A spring 21 is sleeved on the outside of the telescopic rod 19, and the spring 21 is located between the clamping plate 20 and the connecting plate 18. When the clamping plate 20 clamps the mechanical workpiece, it will push the telescopic rod 19 on the rear side to move inside the connecting plate 18, and the spring 21 sleeved on the outside of the telescopic rod 19 will reset and squeeze the clamping plate 20, which not only makes the clamping plate 20 clamp better, but also strengthens the clamping force.
[0033] like Figure 5 As shown, the clamping plate 20 is provided with two sets, and anti-slip rubber pads 22 are pasted inside the two sets of clamping plates 20. Through the anti-slip rubber pads 22 pasted inside the clamping plate 20, the anti-slip rubber pads 22 are attached to the surface of the workpiece that needs to be machined, thereby enhancing protection and preventing loosening when lifting.
[0034] The working principle of this practical application is as follows: First, the hanging ring 2 needs to be connected to the lifting rope. Then, the crane moves the lifting rope and the lifting bracket 1 above the workpiece to be processed. Next, the handle 3 is turned to release the folding rotation of the lifting bracket 1 and the folding frame 4. Then, the clamping plate 20 is placed on both sides of the workpiece. The crane pulls the hanging ring 2 and the lifting bracket 1, causing the folding frame 4 to extend and fold, pulling one set of connecting blocks 7 to move within the limiting groove 8 outside the cross bracket 6. The cross bracket 6 has two sets, so the two sets of cross brackets 6 unfold, thereby driving the connecting block 7 and the lower... The clamping plates 20 are brought close together to clamp and fix the mechanical workpiece. At this time, the entire mechanical workpiece can be lifted. Then, the angle of the mechanical workpiece needs to be adjusted according to the angle required for processing. By turning on the servo motor 13 switch, the first synchronous pulley 14 is driven to drive the external synchronous belt 15 and the second synchronous pulley 16 to rotate. This causes the second synchronous pulley 16 to drive the transmission rod 17 to rotate with the inner connecting plate 18 and the clamping plate 20. The mechanical workpiece also rotates with the clamping plate 20, which facilitates the processing of the mechanical workpiece. In this way, the use of the lifting tool for mechanical processing is completed.
[0035] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.
Claims
1. A lifting tool for machining, characterized in that: Includes a lifting bracket (1) for supporting the entire machining lifting fixture; Hanging ring (2) is fixed above the lifting bracket (1) for suspension. The lifting bracket (1) is rotatably connected to a handle (3). Folding frames (4) are hinged on both sides of the two sets of lifting brackets (1), and the two sets of folding frames (4) are hinged together. The other end of the two sets of folding frames (4) is hinged to a cross bracket (6). One end of the folding frame (4) is hinged to a connecting block (7). A fixing block (9) is fixed to the lower end of the connecting block (7). A sleeve (11) is movably sleeved on the outside of the fixing block (9). A servo motor (13) is fixedly installed on the rear side of the sleeve (11). A first synchronous pulley (14) is fixedly connected to the output end of the servo motor (13). A synchronous belt (15) is sleeved on the outside of the first synchronous pulley (14). A second synchronous pulley (16) is sleeved on the other inner side of the synchronous belt (15). A transmission rod (17) is fixedly connected to the rear side of the second synchronous pulley (16). A connecting plate (18) is fixedly connected to the other end of the transmission rod (17). A clamping plate (20) is movably installed on the outer side of the connecting plate (18).
2. The lifting tool for machining according to claim 1, characterized in that: One of the folding frames (4) is fixedly connected to a locking block (5) on its outer side, and the handle (3) is movably locked to the locking block (5).
3. The lifting tool for machining according to claim 1, characterized in that: The surface of the cross bracket (6) is provided with a limiting groove (8), in which a set of connecting blocks (7) slides in a limiting groove (8).
4. The lifting tool for machining according to claim 1, characterized in that: The surface of each fixing block (9) is provided with a socket (10), and a pin (12) passes through the outside of the sleeve (11), and the pin (12) passes through the fixing block (9).
5. A lifting tool for machining according to claim 1, characterized in that: The transmission rod (17) is rotatably connected to the sleeve (11), and the telescopic rod (19) is slidably connected inside the connecting plate (18). The rear side of the telescopic rod (19) is fixedly connected to the front end of the telescopic rod (19). A spring (21) is sleeved on the outside of the telescopic rod (19), and the spring (21) is located between the clamping plate (20) and the connecting plate (18).
6. The lifting tool for machining according to claim 1, characterized in that: The clamping plate (20) is provided in two sets, and anti-slip rubber pads (22) are pasted inside the two sets of clamping plates (20).