Hoisting clamp for metal processing

By designing a combination of clamping plates and a replacement mechanism, the problem of cumbersome replacement of clamping rods in existing lifting fixtures has been solved, enabling rapid and stable replacement of clamping rods and flexible clamping of workpieces, thus improving operational convenience and work efficiency.

CN223920884UActive Publication Date: 2026-02-17CHANGSHA ZINT METAL PRODUCTS CO LTD
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Patent Information

Application Number
CN202520476967.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-18
Publication Date
2026-02-17
Estimated Expiration
2035-03-18

AI Technical Summary

Technical Problem

The replacement process of the clamping rod of the existing metalworking hoisting fixture is cumbersome and inconvenient, which affects work efficiency. In addition, the complex design of the connection between the clamping rod and the fixture makes the replacement difficult.

Method used

A lifting fixture including a clamping plate, a changing mechanism, and a clamping mechanism is designed. The combination of one-way block and receiving plate enables quick replacement of the clamping rod. The cooperation of one-way plate and annular groove ensures stability. Spring and bottom ring provide elastic support. The clamping mechanism achieves flexible clamping of workpiece through folding plate and connector.

Benefits of technology

It enables quick and stable replacement of the clamping rod and secure clamping of the workpiece, improving operational convenience and work efficiency, and avoiding damage caused by misoperation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a hoisting fixture for metal processing, which comprises a clamping plate, a replacement mechanism is arranged on the clamping plate, the replacement mechanism comprises a clamping mechanism, a fixing sleeve, a pull sleeve, a pull rod, a bearing disc, a middle rod, a clamping mechanism, a one-way block and a clamping rod, the clamping mechanism is connected to the clamping plate and the fixing sleeve in a matched manner, and the clamping mechanism is connected to the clamping plate and the fixing sleeve in a matched manner. According to the hoisting clamp for metal machining, the clamping rod can be rapidly and conveniently replaced through the design of the replacing mechanism, an operator can easily insert the clamping rod into the fixing sleeve through the combination of a one-way block and a bearing disc, meanwhile, stable fixing of the clamping rod is ensured through the cooperation of a one-way piece and an annular groove, and the clamping rod can be conveniently replaced. And a spring and a bottom ring are configured to provide elastic support for the bearing disc, so that the clamping rods can obtain proper pressure during fixing, and the clamping firmness is ensured.
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Description

Technical Field

[0001] This utility model relates to the technical field of lifting fixtures for metal processing, and more specifically, it relates to a lifting fixture for metal processing. Background Technology

[0002] In the current metalworking industry, lifting clamps are indispensable auxiliary tools used to secure and move metal materials during processing. However, existing metalworking lifting clamps have certain limitations in practical use. Because different metalworking tasks have varying requirements, different types and sizes of clamping rods are needed to adapt to various situations. However, the clamping rod replacement process on existing equipment is not convenient, causing inconvenience to operators and affecting work efficiency.

[0003] Specifically, the replacement process of the clamping rods in existing metalworking lifting fixtures typically involves multiple steps, such as disassembly, positioning, and installation. These steps are not only tedious and time-consuming but also require a certain level of technical proficiency. Furthermore, the connection between the clamping rod and the fixture may have design complexities, such as threaded connections or special fixing structures. While these designs ensure the stability of the fixture to some extent, they also increase the difficulty of replacing the clamping rods. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] In view of the problems existing in the prior art, this utility model provides a lifting fixture for metal processing to solve the technical problems mentioned in the background art.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a lifting fixture for metal processing, comprising a clamping plate, wherein a replacement mechanism is provided on the clamping plate, the replacement mechanism comprising a clamping mechanism, a fixed sleeve, a pull sleeve, a pull rod, a receiving plate, an intermediate rod, a snap-fit ​​mechanism, a one-way block, and a snap-fit ​​rod, wherein the clamping mechanism is fitted and connected to the clamping plate and the fixed sleeve, wherein two pull rods are provided, and the two pull rods are slidably connected to the fixed sleeve respectively, wherein the two ends of the pull rods are respectively connected to the pull sleeve and the receiving plate, wherein the intermediate rod is installed on the receiving plate, wherein the snap-fit ​​mechanism is installed on the fixed sleeve and the one-way block, wherein the one-way block is installed on the snap-fit ​​rod, and wherein the one-way block rests on the receiving plate.

[0008] The present invention is further configured such that the snap-fit ​​mechanism includes a unidirectional piece, and multiple unidirectional pieces are provided, and the multiple unidirectional pieces are respectively installed on the inner wall of the fixed sleeve. An annular groove is provided on the side wall of the unidirectional block, and the unidirectional piece is snapped into the annular groove. This design ensures that the snap-fit ​​rod can only be inserted in one direction, avoiding damage caused by misoperation. At the same time, the use of multiple unidirectional pieces improves the stability of the snap-fit.

[0009] The present invention is further configured such that the receiving plate is provided with multiple springs, and each of the multiple springs is provided with a bottom ring. The bottom ring is placed inside the fixing sleeve. The configuration of the springs and the bottom rings provides elastic support for the receiving plate, so that the locking rod can receive appropriate pressure when fixed, thus ensuring the firmness of the locking.

[0010] The present invention is further configured such that the two pull rods pass through the two springs respectively. This design allows the pull rods to receive the assistance of the springs when pulling the receiving plate, thus improving the convenience of operation.

[0011] The present invention is further configured such that a through groove is provided inside the fixed sleeve, and the intermediate rod is slidably connected in the through groove. This design allows the intermediate rod to slide freely when the receiving plate moves, thereby driving the release sleeve to move and realizing the quick release of the snap-fit.

[0012] The present invention is further configured such that the intermediate rod is provided with a plurality of follower plates, and the plurality of follower plates are provided with release sleeves. The release sleeves are attached to the one-way plates. The configuration of the follower plates and the release sleeves enables the release sleeves to make close contact with the one-way plates when the receiving plate moves, thereby realizing the quick release of the snap-fit.

[0013] The present invention is further configured such that the clamping mechanism includes a folding plate and a connecting head, the two clamping plates are rotatably connected, each folding plate is rotatably connected to the clamping plate, and the connecting head is rotatably connected to the two folding plates. This design allows the clamping plates to rotate flexibly to adapt to workpieces of different shapes and sizes.

[0014] The present invention is further provided that each of the clamping plates is provided with a handle. The handle design allows the operator to easily control the movement of the clamping plate, thereby improving the convenience of operation.

[0015] (III) Beneficial Effects

[0016] Compared with the prior art, this utility model provides a lifting fixture for metal processing, which has the following advantages:

[0017] 1. The design of the replacement mechanism enables quick and easy replacement of the clamping rod in metalworking lifting fixtures. Through the combination of the one-way block and the receiving plate, the operator can easily insert the clamping rod into the fixing sleeve. At the same time, the cooperation of the one-way plate and the annular groove ensures the stable fixation of the clamping rod. The configuration of the spring and the bottom ring provides elastic support for the receiving plate, so that the clamping rod can receive appropriate pressure when fixed, ensuring the firmness of the clamping.

[0018] 2. The design of the snap-fit ​​mechanism achieves a firm connection between the snap-fit ​​rod and the fixed sleeve. Through the cooperation of the one-way plate and the annular groove, the snap-fit ​​rod can be stably fixed in the fixed sleeve, preventing displacement or loosening during use. The design of the one-way plate means that the snap-fit ​​rod can only be inserted in one direction, avoiding damage caused by misoperation.

[0019] 3. The clamping mechanism is designed to firmly clamp and lift metal workpieces. Through the combination of folding plates and connectors, the operator can easily clamp the two clamping plates together to fix the workpiece. The handle design allows the operator to easily control the movement of the clamping plates, improving the convenience of operation. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of a lifting fixture for metal processing according to the present invention;

[0021] Figure 2 This is a schematic diagram of the replacement mechanism in this utility model;

[0022] Figure 3 In this utility model Figure 2 A schematic diagram of the cross-sectional structure;

[0023] Figure 4 This is a schematic diagram of the structure of the receiving plate in this utility model;

[0024] Figure 5 This is a schematic diagram of the connecting rod in this utility model.

[0025] In the diagram: 1. Clamping plate; 2. Fixing sleeve; 3. Pull sleeve; 4. Pull rod; 5. Receiving plate; 6. Intermediate rod; 7. One-way block; 8. Snap-fit ​​rod; 9. One-way piece; 10. Annular groove; 11. Spring; 12. Bottom ring; 13. Through groove; 14. Follower piece; 15. Release sleeve; 16. Folding plate; 17. Connector; 18. Handle. Detailed Implementation

[0026] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0027] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0028] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0029] Please see Figure 1-5 A metalworking lifting fixture includes a clamping plate 1 with a replacement mechanism. The replacement mechanism includes a clamping mechanism, a fixing sleeve 2, a pull sleeve 3, a pull rod 4, a receiving plate 5, an intermediate rod 6, a locking mechanism, a one-way block 7, and a locking rod 8. The clamping mechanism is connected to the clamping plate 1 and the fixing sleeve 2. Two pull rods 4 are provided, each slidably connected to the fixing sleeve 2. The two ends of each pull rod 4 are connected to the pull sleeve 3 and the receiving plate 5, respectively. The intermediate rod 6 is mounted on the receiving plate 5. The locking mechanism is mounted on the fixing sleeve 2 and the one-way block 7. The one-way block 7 is mounted on the locking rod 8 and rests against the receiving plate 5. The snap-fit ​​mechanism includes a one-way piece 9, and multiple one-way pieces 9 are provided. The multiple one-way pieces 9 are respectively installed on the inner wall of the fixed sleeve 2. An annular groove 10 is opened on the side wall of the one-way block 7. The one-way piece 9 is snapped on the annular groove 10. Multiple springs 11 are provided on the receiving plate 5. Each of the multiple springs 11 is provided with a bottom ring 12. The bottom ring 12 is pressed against the inside of the fixed sleeve 2. Two pull rods 4 pass through the two springs 11 respectively. A through groove 13 is opened in the fixed sleeve 2. The intermediate rod 6 is slidably connected in the through groove 13. Multiple follower pieces 14 are provided on the intermediate rod 6. A release sleeve 15 is provided on the multiple follower pieces 14. The release sleeve 15 is attached to the one-way piece 9.

[0030] In this embodiment, when the corresponding snap-fit ​​rod 8 needs to be installed, the one-way block 7 is first inserted into the fixing sleeve 2, and then the one-way block 7 passes through the follower piece 14. Due to the one-way setting of the one-way piece 9, the one-way piece 9 can be snapped into the annular groove 10, thus completing the snap-fit ​​process. Multiple one-way blocks 7 are inserted into the receiving plate 5 respectively, thus ensuring the stability of multiple inserted blocks, and then ensuring the fixation of the snap-fit ​​rod 8 and the clamping plate 1. When it is necessary to disassemble and replace, the pull sleeve 3 is pulled first, and then the receiving plate 5 is pulled backward under the action of the pull rod 4. Since the intermediate rod 6 is connected to the receiving plate 5 and the disassembly sleeve 15 respectively, the disassembly sleeve 15 can be driven to abut against the one-way piece 9, thereby disassembling the snap-fit ​​between the one-way piece 9 and the annular groove 10, and then completing the disassembly process.

[0031] Please see Figure 1As one embodiment of the clamping mechanism: the clamping mechanism includes a folding plate 16 and a connector 17. Two clamping plates 1 are rotatably connected, each folding plate 16 is rotatably connected to the clamping plate 1, and the connector 17 is rotatably connected to the two folding plates 16. Each clamping plate 1 is provided with a handle 18.

[0032] More specifically, when it is necessary to clamp the corresponding metal workpiece, firstly, clamp the two clamping rods 8 onto the side wall of the workpiece, then pull the connector 17 through external equipment, so that the two clamping plates 1 clamp each other, and then the metal workpiece can be clamped and moved upward, thus completing the hoisting process.

[0033] In summary, during the use or operation of the overall equipment: when the corresponding snap-fit ​​rod 8 needs to be installed, first insert the one-way block 7 into the fixing sleeve 2, and then let the one-way block 7 pass through the follower plate 14. Due to the one-way setting of the one-way plate 9, the one-way plate 9 can be snapped into the annular groove 10, thus completing the snap-fit ​​process. Multiple one-way blocks 7 are inserted into the receiving plate 5 respectively, thus ensuring the stability of the multiple inserted blocks and ensuring the fixation of the snap-fit ​​rod 8 and the clamping plate 1. When it is necessary to disassemble and replace, first pull the pull sleeve 3, and then pull the rod 4... Pulling the receiving plate 5 backward causes the intermediate rod 6 to be connected to the receiving plate 5 and the release sleeve 15 respectively. This causes the release sleeve 15 to abut against the one-way plate 9, thereby releasing the snap between the one-way plate 9 and the annular groove 10, thus completing the release process. When it is necessary to clamp the corresponding metal workpiece, first clamp the two snap rods 8 on the side wall of the workpiece, and then pull the connector 17 through external equipment to make the two clamping plates 1 clamp each other. This allows the metal workpiece to be clamped and moved upward, thus completing the hoisting process.

[0034] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A lifting fixture for metal processing, comprising a clamping plate (1), characterized in that, The clamping plate (1) is provided with a replacement mechanism, which includes a clamping mechanism, a fixed sleeve (2), a pull sleeve (3), a pull rod (4), a receiving plate (5), an intermediate rod (6), a snap-fit ​​mechanism, a one-way block (7), and a snap-fit ​​rod (8). The clamping mechanism is connected to the clamping plate (1) and the fixed sleeve (2). There are two pull rods (4), and the two pull rods (4) are slidably connected to the fixed sleeve (2). The two ends of the pull rods (4) are connected to the pull sleeve (3) and the receiving plate (5), respectively. The intermediate rod (6) is installed on the receiving plate (5). The snap-fit ​​mechanism is installed on the fixed sleeve (2) and the one-way block (7). The one-way block (7) is installed on the snap-fit ​​rod (8). The one-way block (7) rests on the receiving plate (5).

2. The lifting fixture for metal processing according to claim 1, characterized in that: The snap-fit ​​mechanism includes a one-way piece (9), and multiple one-way pieces (9) are provided. The multiple one-way pieces (9) are respectively installed on the inner wall of the fixed sleeve (2). An annular groove (10) is provided on the side wall of the one-way block (7), and the one-way piece (9) is snapped into the annular groove (10).

3. A lifting fixture for metal processing according to claim 2, characterized in that: The receiving plate (5) is provided with multiple springs (11), and each of the multiple springs (11) is provided with a bottom ring (12), which rests inside the fixing sleeve (2).

4. A lifting fixture for metal processing according to claim 3, characterized in that: The two pull rods (4) pass through the two springs (11) respectively.

5. A lifting fixture for metal processing according to claim 4, characterized in that: The fixed sleeve (2) has a through groove (13) inside, and the intermediate rod (6) is slidably connected in the through groove (13).

6. A lifting fixture for metal processing according to claim 5, characterized in that: The intermediate rod (6) is provided with a plurality of follower plates (14), and the plurality of follower plates (14) are provided with release sleeves (15), which are attached to the one-way plate (9).

7. A lifting fixture for metal processing according to claim 1, characterized in that: The clamping mechanism includes a folding plate (16) and a connector (17). The two clamping plates (1) are rotatably connected, and each folding plate (16) is rotatably connected to the clamping plate (1). The connector (17) is rotatably connected to the two folding plates (16).

8. A lifting fixture for metal processing according to claim 7, characterized in that: Each of the clamping plates (1) is provided with a handle (18).