Clamping device for metal heat treatment
The automated metal heat treatment clamping device uses a stepper motor to drive a gear and rack transmission system to achieve automatic clamping, which solves the fatigue problem caused by traditional manual clamping and improves work efficiency and safety.
Patent Information
- Application Number
- CN202520627676.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-07
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-04-07
AI Technical Summary
Traditional metal heat treatment clamping devices require manual operation, causing workers to maintain the same posture for extended periods, resulting in hand fatigue, health risks, and reduced work efficiency.
An automatic clamping device was designed, which uses a stepper motor to drive the clamping jaws to open and close, and achieves automated clamping through a gear and rack transmission system, reducing human interference and is suitable for metal workpieces of various shapes and sizes.
It improves work efficiency, reduces hand fatigue and injury risk for workers, enhances work stability and safety, and has high versatility and practicality.
Smart Images

Figure CN223936547U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of metal heat treatment technology, and is specifically applicable to clamping devices for metal heat treatment. Background Technology
[0002] In metal heat treatment operations, clamping devices play a crucial role. They are used to fix and support metal workpieces, ensuring that the workpieces maintain a stable position and shape during heat treatment. However, most traditional metal clamping devices require workers to manually hold and maintain the clamping posture, which is undoubtedly a physical challenge for workers who work for long periods. Maintaining the same clamping posture for extended periods can easily lead to hand fatigue, soreness, and even injury, not only affecting work efficiency but also potentially adversely impacting the health of workers.
[0003] To address this issue, various improved metal heat treatment clamping devices have emerged on the market, but most still fail to fundamentally solve the inconvenience caused by manual clamping. Therefore, developing a metal heat treatment clamping device that can automatically clamp and reduce the burden on workers' hands is particularly important. Utility Model Content
[0004] The purpose of this invention is to provide a clamping device for metal heat treatment to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a clamping device for metal heat treatment, comprising a working end, a connecting rod fixedly connected to one end of the working end, a working block fixedly connected to the end of the connecting rod away from the working end, a fixed clamping claw fixedly connected to the bottom of the working block away from the connecting rod, a movable clamping claw provided on the side wall of the working block at the top of the fixed clamping claw, anti-slip teeth fixedly connected to the top and bottom of the fixed clamping claw and the movable clamping claw near each other at the ends away from the working block, a connecting block fixedly connected to the end of the movable clamping claw near the working block, a through groove provided on the side wall of the working block where the position matches the connecting block, a working cavity provided on the inner wall of the working block, the through groove and the working cavity being through the working cavity, a rack fixedly connected to the end of the connecting block passing through the through groove, a driving gear meshing with the end of the rack away from the connecting block, and the driving gear being rotatably connected inside the working cavity via a rotating shaft.
[0006] As a further embodiment of this utility model: the inner wall of the connecting rod is provided with a transmission cavity, the inner wall of the transmission cavity is provided with a transmission shaft, and the outer wall of the transmission shaft is uniformly fixedly connected with multiple bearings.
[0007] As a further embodiment of this utility model: the end of the transmission shaft near the working block is rotatably connected to the working block through a bearing, and the end of the transmission shaft located in the working cavity is fixedly connected to a first bevel gear.
[0008] As a further embodiment of this utility model: the end of the first bevel gear near the driving gear is meshed with a second bevel gear, and the end of the second bevel gear near the driving gear is fixedly connected to the driving gear through a fixed shaft.
[0009] As a further embodiment of this utility model: the inner wall of the working end is provided with an installation cavity, a partition is fixedly connected to the middle inner wall of the installation cavity, a stepper motor is fixedly connected to one end of the installation cavity near the connecting rod, and the output end of the stepper motor is fixedly connected to the transmission shaft.
[0010] As a further embodiment of this utility model: a storage battery is fixedly connected to the inner wall of the mounting cavity at the end away from the stepper motor, and a power connection port is fixedly connected to the end of the working end near the storage battery, and the output end of the power connection port is electrically connected to the input end of the storage battery.
[0011] As a further improvement of this utility model: a handle is fixedly connected to the outer wall of the connecting rod near the working end, and a switch is provided on the top of the handle away from the working end.
[0012] Compared with existing technologies, the advantages of this invention are as follows: In this invention, the gripper opens and closes automatically via a stepper motor, eliminating the need for manual operation and thus improving work efficiency. Automated gripping avoids workers maintaining the same gripping posture for extended periods, effectively reducing hand fatigue and the risk of injury. Automated operation reduces human interference, improving operational stability and safety. This device is suitable for metal workpieces of various shapes and sizes, exhibiting high versatility and practicality. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the main structure of the clamping device for metal heat treatment according to this utility model;
[0014] Figure 2 This is an enlarged cross-sectional view of the connecting rod in the clamping device for metal heat treatment according to this utility model;
[0015] Figure 3 This is an enlarged cross-sectional view of the working block in the clamping device for metal heat treatment according to this utility model;
[0016] Figure 4 This is an enlarged schematic diagram of the transmission structure of the clamping device for metal heat treatment according to this utility model;
[0017] Figure 5 This is an enlarged cross-sectional view of the working end of the clamping device for metal heat treatment according to this utility model.
[0018] In the diagram: 1. Working end; 2. Handle; 3. Switch; 4. Connecting rod; 5. Working block; 6. Through slot; 7. Connecting block; 8. Movable clamping claw; 9. Fixed clamping claw; 10. Anti-slip teeth; 11. Transmission cavity; 12. Transmission shaft; 13. Bearing; 14. Working cavity; 15. First bevel gear; 16. Rack; 17. Second bevel gear; 18. Drive gear; 19. Mounting cavity; 20. Partition plate; 21. Battery; 22. Power connection port; 23. Stepper motor. Detailed Implementation
[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0020] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.
[0021] In the description of this invention, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.
[0022] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "configuration" should be interpreted broadly. For example, they can refer to a fixed connection or configuration, a detachable connection or configuration, or an integral connection or configuration. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.
[0023] Please see Figures 1-5 In this embodiment of the invention, the clamping device includes a working end 1, one end of which is fixedly connected to a connecting rod 4, and the end of the connecting rod 4 away from the working end 1 is fixedly connected to a working block 5. A fixed clamping claw 9 is fixedly connected to the bottom of the working block 5 away from the connecting rod 4, while a movable clamping claw 8 is provided on the side wall of the working block 5 located at the top of the fixed clamping claw 9. Anti-slip teeth 10 are fixedly connected to the top and bottom of the fixed clamping claw 9 and the movable clamping claw 8, which are close to each other at the ends away from the working block 5, to increase the clamping force and prevent the workpiece from slipping.
[0024] A connecting block 7 is fixedly connected to one end of the movable clamping claw 8 near the working block 5. A through groove 6 is formed on the side wall of the working block 5 where the position matches that of the connecting block 7. A working cavity 14 is also formed on the inner wall of the working block 5, and the through groove 6 passes through the working cavity 14. A rack 16 is fixedly connected to one end of the connecting block 7 that passes through the through groove 6, and the end of the rack 16 away from the connecting block 7 is engaged with a drive gear 18. The drive gear 18 is rotatably connected inside the working cavity 14 via a rotating shaft.
[0025] In addition, a transmission cavity 11 is formed on the inner wall of the connecting rod 4, and a transmission shaft 12 is provided on the inner wall of the transmission cavity 11. Multiple bearings 13 are uniformly fixedly connected to the outer wall of the transmission shaft 12 to achieve its smooth rotation. The end of the transmission shaft 12 near the working block 5 is rotatably connected to the working block 5 through the bearings 13, while the end of the transmission shaft 12 located in the working cavity 14 is fixedly connected to a first bevel gear 15. The end of the first bevel gear 15 near the driving gear 18 is meshed with a second bevel gear 17, and the second bevel gear 17 is fixedly connected to the driving gear 18 through a fixed shaft.
[0026] An installation cavity 19 is formed on the inner wall of the working end 1. A partition 20 is fixedly connected to the middle inner wall of the installation cavity 19 to divide the installation cavity 19 into two independent spaces. A stepper motor 23 is fixedly connected to one end of the installation cavity 19 near the connecting rod 4, and the output end of the stepper motor 23 is fixedly connected to the drive shaft 12. In this way, when the stepper motor 23 is working, it can drive the first bevel gear 15 to rotate through the drive shaft 12, and then drive the drive gear 18 to rotate through the second bevel gear 17.
[0027] To facilitate the movement and carrying of the device, a handle 2 is fixedly connected to the outer wall of the connecting rod 4 near the working end 1. A switch 3 is provided on the top of the handle 2 away from the working end 1 to control the start and stop of the stepper motor 23. Meanwhile, a battery 21 is fixedly connected to the inner wall of the mounting cavity 19 away from the stepper motor 23 to provide power to the stepper motor 23. A power connector 22 is fixedly connected to the end of the working end 1 near the battery 21. The output end of the power connector 22 is electrically connected to the input end of the battery 21 to charge the battery 21.
[0028] The working principle of this utility model is as follows: When using this clamping device for metal heat treatment, firstly, charge the battery 21 through the power connection port 22 to ensure that the device has sufficient power support. Then, grasp the handle 2 and move the device near the metal workpiece to be clamped. Start the stepper motor 23 through the switch 3, and the output end of the stepper motor 23 drives the transmission shaft 12 to rotate. The rotation of the transmission shaft 12 is transmitted to the first bevel gear 15 inside the working block 5 through the bearing 13. The first bevel gear 15 then meshes with the second bevel gear 17 and rotates, thereby driving the drive gear 18 to rotate.
[0029] Since the drive gear 18 is meshed with the rack 16, when the drive gear 18 rotates, it will cause the rack 16 to move along the direction of the through groove 6. The movement of the rack 16, in turn, causes the movable clamping jaw 8 to open and close relative to the fixed clamping jaw 9 through the connecting block 7. When the distance between the movable clamping jaw 8 and the fixed clamping jaw 9 is adjusted to a suitable size, the metal workpiece can be firmly clamped between them for heat treatment.
[0030] After the work is completed, the stepper motor 23 is reversed again by switch 3, causing the movable gripper 8 to separate from the fixed gripper 9 and release the workpiece. Throughout the process, the operator does not need to maintain a gripping posture for a long time, which greatly reduces the burden on the hands and improves work efficiency.
[0031] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.
[0032] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.
Claims
1. A clamping device for metal heat treatment, comprising a working end (1), characterized in that: One end of the working end (1) is fixedly connected to a connecting rod (4), and the end of the connecting rod (4) away from the working end (1) is fixedly connected to a working block (5). The bottom of the working block (5) away from the connecting rod (4) is fixedly connected to a fixed clamping claw (9). A movable clamping claw (8) is provided on the side wall of the working block (5) at the top of the fixed clamping claw (9). The top and bottom of the fixed clamping claw (9) and the movable clamping claw (8) away from the working block (5) are fixedly connected to anti-slip teeth (10). The movable clamping claw (8) is close to the working end. One end of the block (5) is fixedly connected to a connecting block (7). The side wall of the working block (5) that matches the position of the connecting block (7) is provided with a through groove (6). The inner wall of the working block (5) is provided with a working cavity (14). The through groove (6) and the working cavity (14) are connected through each other. One end of the connecting block (7) that passes through the through groove (6) is fixedly connected to a rack (16). The end of the rack (16) away from the connecting block (7) is meshed with a driving gear (18). The driving gear (18) is rotatably connected to the inside of the working cavity (14) through a rotating shaft.
2. The clamping device for metal heat treatment according to claim 1, characterized in that: The inner wall of the connecting rod (4) is provided with a transmission cavity (11), the inner wall of the transmission cavity (11) is provided with a transmission shaft (12), and the outer wall of the transmission shaft (12) is uniformly fixedly connected with multiple bearings (13).
3. The clamping device for metal heat treatment according to claim 2, characterized in that: The end of the drive shaft (12) near the working block (5) is rotatably connected to the working block (5) through a bearing (13), and the end of the drive shaft (12) located in the working inner cavity (14) is fixedly connected to a first bevel gear (15).
4. The clamping device for metal heat treatment according to claim 3, characterized in that: The first bevel gear (15) is meshed with the second bevel gear (17) at one end near the driving gear (18), and the second bevel gear (17) is fixedly connected to the driving gear (18) at one end near the driving gear (18) via a fixed shaft.
5. The clamping device for metal heat treatment according to claim 1, characterized in that: The inner wall of the working end (1) is provided with an installation cavity (19). A partition (20) is fixedly connected to the middle inner wall of the installation cavity (19). A stepper motor (23) is fixedly connected to one end of the installation cavity (19) near the connecting rod (4). The output end of the stepper motor (23) is fixedly connected to the transmission shaft (12).
6. The clamping device for metal heat treatment according to claim 5, characterized in that: A battery (21) is fixedly connected to the inner wall of the mounting cavity (19) away from the stepper motor (23). A power connection port (22) is fixedly connected to the end of the working end (1) near the battery (21). The output end of the power connection port (22) is electrically connected to the input end of the battery (21).
7. The clamping device for metal heat treatment according to claim 1, characterized in that: A handle (2) is fixedly connected to the outer wall of the connecting rod (4) near the working end (1), and a switch (3) is provided on the top of the handle (2) away from the working end (1).