Clamping mechanism of adjustable bench vice
By designing an adjustable bench vise clamping mechanism, the angle of the workpiece can be adjusted and stably clamped by using the cooperation of a rack and pinion and an arc-shaped connecting plate. This solves the problem that the traditional bench vise clamping mechanism is not convenient for angle adjustment, and improves the convenience and accuracy of processing.
Patent Information
- Application Number
- CN202520061478.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-11
- Publication Date
- 2026-01-09
- Estimated Expiration
- 2035-01-11
AI Technical Summary
Traditional bench vise clamping mechanisms are not convenient for angle adjustment, resulting in cumbersome workpiece processing operations that consume time and effort.
An adjustable bench vise clamping mechanism was designed, comprising a bracket, a fixing component, and a clamping mechanism. Through the cooperation of a rack, an arc-shaped connecting plate, and a limiting plate, the angle of the workpiece can be adjusted and the workpiece can be stably clamped. The crank handle drives the screw and the slider to achieve the rotation and fixation of the workpiece.
It improves the convenience of workpiece clamping and the accuracy of processing, simplifies the operation process, and enhances the stability and practicality of the device.
Smart Images

Figure CN223776943U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of bench vises, and in particular to a clamping mechanism for an adjustable bench vise. Background Technology
[0002] In many fields such as machining, handcrafting, and repair, the bench vise is a key tool for securing workpieces, and the performance of its clamping mechanism directly affects the convenience and accuracy of machining operations. Traditional bench vises are not convenient for angle adjustment during use. Most ordinary bench vises are fixed at a single working angle from start to finish, making it difficult to flexibly adapt to diverse machining needs. To machine different sides of a workpiece, operators must frequently remove the workpiece from the jaws and re-clamp it at a new angle, a repetitive and cumbersome process that wastes time and energy. Utility Model Content
[0003] To address the problems mentioned in the background art, this application provides a clamping mechanism for an adjustable bench vise.
[0004] The clamping mechanism of the adjustable bench vise provided in this application adopts the following technical solution:
[0005] An adjustable bench vise clamping mechanism includes a bracket, a fixing component, and a clamping mechanism;
[0006] The upper surface of the bracket is symmetrically fixedly connected with support plates. Each of the two support plates has a movable groove. Each of the two movable grooves has an arc-shaped connecting plate inside. A fixing plate is fixedly connected between the two arc-shaped connecting plates, and the fixing plate is located between the two support plates. Each of the two arc-shaped connecting plates has a circular groove on its opposite side. A connecting rod is slidably connected inside the circular groove by a tension spring. A rack is fixedly connected to one end of the connecting rod. Each of the two support plates has an arc-shaped toothed plate that cooperates with the rack. A pointer is fixedly connected to one side of one of the arc-shaped connecting plates. A scale line that cooperates with the pointer is provided on one side of one of the support plates.
[0007] The fixing component is disposed on the bracket and is used to fix the bracket to the desktop;
[0008] The clamping mechanism is mounted on the fixed plate and is used to clamp and fix the workpiece.
[0009] Preferably, the clamping mechanism includes a clamping plate and a screw. A baffle is fixedly connected to one side of the upper surface of the fixed plate, and an mounting plate is fixedly connected to the other side of the upper surface of the fixed plate. A sliding groove is formed through the upper surface of the fixed plate, and a slider is slidably connected inside the sliding groove. The clamping plate is fixedly connected to the upper surface of the slider. The screw passes through the mounting plate and is threaded to it. One end of the screw is rotatably connected to the side wall of the clamping plate.
[0010] Preferably, a crank handle is fixedly connected to the end of the screw away from the clamping plate.
[0011] Preferably, a limiting rod is fixedly connected inside the slide groove, and the limiting rod passes through the slider and is slidably connected to it.
[0012] Preferably, an arc-shaped limiting plate is fixedly connected to the outer wall of the arc-shaped connecting plate, and a limiting groove that slides with the arc-shaped limiting plate is provided on the side wall of the support plate at the movable groove.
[0013] In summary, this application includes the following beneficial technical effects:
[0014] Compared to existing technologies, this device features a clamping mechanism that allows workers to easily clamp and fix the workpiece. By pulling the rack to disengage it from the toothed groove on the arc-shaped toothed plate, workers can rotate the workpiece using a crank handle. The pointer on the arc-shaped limiting plate indicates the rotation angle of the workpiece. By re-clamping the rack into one of the toothed grooves on the arc-shaped toothed plate, the arc-shaped connecting plate and the workpiece can be limited, thus ensuring the stability of the overall device. At the same time, the overall structure is relatively simple and easy to use, improving the practicality of the device. Attached Figure Description
[0015] Figure 1 This is a three-dimensional structural diagram of an embodiment of the application;
[0016] Figure 2 This is a schematic diagram of the arc-shaped limiting plate and limiting groove in the embodiment of the application;
[0017] Figure 3 This is a schematic diagram of the structure of the limiting rod and slider in the embodiment of the application;
[0018] Figure 4 This is a schematic diagram of the rack and tension spring in the embodiment of the application.
[0019] Explanation of reference numerals in the attached drawings: 1. Bracket; 2. Fixing component; 3. Support plate; 4. Arc-shaped connecting plate; 5. Baffle; 6. Clamping plate; 7. Screw; 8. Mounting plate; 9. Handle; 10. Fixing plate; 11. Arc-shaped toothed plate; 12. Rack; 13. Pointer; 14. Scale line; 15. Movable groove; 16. Limiting groove; 17. Arc-shaped limiting plate; 18. Limiting rod; 19. Slider; 20. Circular groove; 21. Connecting rod; 22. Tension spring. Detailed Implementation
[0020] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.
[0021] This application discloses a clamping mechanism for an adjustable bench vise. (Refer to...) Figure 1-4 An adjustable bench vise clamping mechanism includes a bracket 1, a fixing component 2, and a clamping mechanism. Support plates 3 are symmetrically fixedly connected to the upper surface of the bracket 1. Each support plate 3 has a movable groove 15. An arc-shaped connecting plate 4 is installed inside each movable groove 15. An arc-shaped limiting plate 17 is fixedly connected to the outer wall of the arc-shaped connecting plate 4. A limiting groove 16, which slides with the arc-shaped limiting plate 17, is opened on the side wall of the support plate 3 at the movable groove 15. The arc-shaped limiting plate 17 is T-shaped. A fixing plate 10 is fixedly connected between the two arc-shaped connecting plates 4, and the fixing plate 10 is located between the two support plates 3. A circular groove 20 is opened on the opposite side of each of the two arc-shaped connecting plates 4. A connecting rod 21 is slidably connected inside the circular groove 20 via a tension spring 22. A rack 12 is fixedly connected to one end of the connecting rod 21. An arc-shaped toothed plate 11, which cooperates with the rack 12, is fixedly connected to the opposite side of each of the two support plates 3. A pointer 13 is fixedly connected to one side of the arc-shaped connecting plate 4. A scale line 14 for use with the pointer 13 is provided on one side of one of the support plates 3. The fixing component 2 is set on the bracket 1 and is used to fix the bracket 1 on the table. The fixing component 2 includes a lead screw and a support plate, which are existing technologies and widely used in society, so they will not be described in detail. The clamping mechanism is set on the fixing plate 10 and is used to clamp and fix the workpiece. The clamping mechanism includes a clamping plate 6 and a screw 7. A baffle 5 is fixedly connected to one side of the upper surface of the fixing plate 10, and an mounting plate 8 is fixedly connected to the other side of the upper surface of the fixing plate 10. A sliding groove is opened through the upper surface of the fixing plate 10, and a slider 19 is slidably connected inside the sliding groove. The clamping plate 6 is fixedly connected to the upper surface of the slider 19. The screw 7 passes through the mounting plate 8 and is threadedly connected to it. One end of the screw 7 is rotatably connected to the side wall of the clamping plate 6, and a crank 9 is fixedly connected to the end of the screw 7 away from the clamping plate 6.
[0022] The implementation principle of the clamping mechanism of an adjustable bench vise according to this application embodiment is as follows: In use, the bracket 1 is attached to the tabletop through the groove on one side. The bracket 1 and the clamping mechanism can be fixed to the tabletop by the fixing component 2. Then, the workpiece to be processed is placed between the baffle 5 and the clamping plate 6. By rotating the crank handle 9, the screw 7 can be rotated. The screw 7 can drive the clamping plate 6 to move towards the workpiece through the slider 19, thereby clamping and fixing the workpiece for subsequent processing. When it is necessary to adjust the processing angle of the workpiece, the operator pulls the rack 12 to disengage it from the tooth groove on the arc-shaped toothed plate 11. At the same time, the tension spring 22 can be stretched through the connecting rod 21. Then, the operator can drive the clamping mechanism, the workpiece and the fixing plate 10 to rotate synchronously through the crank handle 9. The fixing plate 10 can drive the arc-shaped limiting plate 17 on it to slide in the limiting groove 16. The pointer 13 on the arc-shaped limiting plate 17 points to the scale line 1. 4. This design facilitates the operator's understanding of the workpiece's rotation angle. Once the workpiece has rotated to the appropriate angle, the rack 12 is released, and under the elastic force of the tension spring 22, the rack 12 moves and resets, allowing it to re-engage in one of the toothed slots on the arc-shaped toothed plate 11. This limits the arc-shaped connecting plate 4, ensuring the stability of the entire device. During this process, the clamping mechanism allows the operator to clamp and fix the workpiece. By pulling the rack 12 to disengage it from the toothed slot on the arc-shaped toothed plate 11, the operator can rotate the workpiece using the crank handle 9. The pointer 13 on the arc-shaped limiting plate 17 indicates the scale line 14, allowing the operator to understand the workpiece's rotation angle. Re-engaging the rack 12 in one of the toothed slots on the arc-shaped toothed plate 11 limits the arc-shaped connecting plate 4 and the workpiece, ensuring the stability of the entire device. The overall structure is also relatively simple and easy to use, improving the device's practicality.
[0023] Reference Figure 3 The slide groove is fixedly connected to a limiting rod 18, which passes through the slider 19 and is slidably connected to it. The limiting rod 18 makes the slider 19 more stable when sliding.
[0024] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.
[0025] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.
[0026] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
[0027] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A clamping mechanism for an adjustable bench vise, characterized in that: It includes a bracket (1), a fixing component (2), and a clamping mechanism; Support plates (3) are symmetrically fixedly connected to the upper surface of the bracket (1). Each of the two support plates (3) has a movable groove (15). An arc-shaped connecting plate (4) is provided inside each of the two movable grooves (15). A fixing plate (10) is fixedly connected between the two arc-shaped connecting plates (4). The fixing plate (10) is located between the two support plates (3). A circular groove (20) is provided on the opposite side of each of the two arc-shaped connecting plates (4). A connecting rod (21) is slidably connected inside the circular groove (20) by a tension spring (22). A rack (12) is fixedly connected to one end of the connecting rod (21). An arc-shaped toothed plate (11) that cooperates with the rack (12) is fixedly connected to the opposite side of each of the two support plates (3). A pointer (13) is fixedly connected to one side of one of the arc-shaped connecting plates (4). A scale line (14) that cooperates with the pointer (13) is provided on one side of one of the support plates (3). The fixing component (2) is disposed on the bracket (1) and is used to fix the bracket (1) on the desktop; The clamping mechanism is mounted on the fixed plate (10) and is used to clamp and fix the workpiece.
2. The clamping mechanism of an adjustable bench vise according to claim 1, characterized in that: The clamping mechanism includes a clamping plate (6) and a screw (7). A baffle (5) is fixedly connected to one side of the upper surface of the fixed plate (10), and an mounting plate (8) is fixedly connected to the other side of the upper surface of the fixed plate (10). A sliding groove is opened through the upper surface of the fixed plate (10), and a slider (19) is slidably connected inside the sliding groove. The clamping plate (6) is fixedly connected to the upper surface of the slider (19). The screw (7) passes through the mounting plate (8) and is threadedly connected to it. One end of the screw (7) is rotatably connected to the side wall of the clamping plate (6).
3. The clamping mechanism of an adjustable bench vise according to claim 2, characterized in that: A crank handle (9) is fixedly connected to one end of the screw (7) away from the clamping plate (6).
4. The clamping mechanism of an adjustable bench vise according to claim 2, characterized in that: A limiting rod (18) is fixedly connected inside the slide groove. The limiting rod (18) passes through the slider (19) and is slidably connected to it.
5. The clamping mechanism of an adjustable bench vise according to claim 1, characterized in that: The outer wall of the arc-shaped connecting plate (4) is fixedly connected to an arc-shaped limiting plate (17), and the side wall of the support plate (3) is provided with a limiting groove (16) that slides with the arc-shaped limiting plate (17) at the movable groove (15).