Automatic locking tongs device

Abstract

The application discloses a kind of automatic locking movable vise mouth devices, it is related to the field of vice, including base, fixed jaw mouth being installed in the upper surface one end of base and slidingly arranged in the upper surface of base movable vise body, locking assembly for locking movable vise body is equipped on base, the cooperation of structure such as fixed rod, threaded rod and locating block is set in the application, when using, by rotating threaded rod, make locating block close to fixed plate, slide into arc-shaped groove with fixed plate, make fixed rod be located in arc-shaped groove, position fixed rod, then by swinging one swing arm, make fixed rod drive another swing arm swing simultaneously, make swing arm disengage from tooth plate, make movable vise body slide on base, then by springback component, swing arm is rebounded, make swing arm and tooth plate engage, automatically lock movable vise body, try to avoid the problem that two rotating arm connecting blocks are swung respectively, make the gear disengage from tooth rail, cause to reduce the problem of operation convenience.

Description

Technical Field

[0001] This application relates to the field of vises, and more particularly to an automatic locking device for the moving jaws. Background Technology

[0002] A vise is a general-purpose clamping tool used to hold parts during shaping, filing, and deburring. Existing vises include a base, a fixed jaw fixedly mounted on the base, a movable jaw that cooperates with the fixed jaw to clamp the parts, and a screw for adjusting the distance between the fixed jaw and the movable jaw.

[0003] The utility model patent with announcement number CN220637520U proposes a quick-locking vise, including a base, fixed jaws, a pair of toothed rails, movable jaws, a lead screw, a stop, a rotating arm, a rotating arm connecting block, teeth, a torsion spring, and a support.

[0004] One of the quick-locking vises mentioned above cannot make the two rotating arm connecting blocks swing synchronously during use. It is necessary to swing the two rotating arm connecting blocks separately to disengage the teeth from the toothed rail, which reduces the ease of operation. Utility Model Content

[0005] To address the aforementioned problems, this application provides an automatic locking device for moving jaws.

[0006] The automatic locking moving jaw device provided in this application adopts the following technical solution:

[0007] An automatic locking moving jaw device includes a base and a moving jaw body slidably disposed on the upper surface of the base. The base is provided with a locking assembly for locking the moving jaw body. The locking assembly includes two toothed plates respectively fixedly connected to the side walls of the base. A fixing plate is fixedly connected to one side wall inside the moving jaw body. A fixing rod is provided at one end of the fixing plate away from the moving jaw body. A swing arm is fixedly connected to both ends of the fixing rod. The ends of the swing arms away from the fixing rod respectively engage with the toothed plates. A threaded rod is rotatably connected inside the moving jaw body. A positioning block is threadedly connected to the threaded rod. The positioning block is located on one side of the fixing rod. An arc-shaped groove adapted to the fixing plate is opened on one side wall of the positioning block. A spring-loaded assembly for limiting the swing arm swing is provided on the fixing rod and the positioning block.

[0008] By adopting the above technical solution, during use, the threaded rod is rotated to bring the positioning block closer to the fixed plate, and the fixed plate is slid into the arc-shaped groove, so that the fixed rod is positioned in the arc-shaped groove. Then, by swinging one of the swing arms, the fixed rod drives the other swing arm to swing simultaneously, disengaging the swing arm from the toothed plate, allowing the moving jaw body to slide on the base and approach the fixed jaw. Then, the spring-back component springs the swing arm back, so that the swing arm engages with the toothed plate, automatically locking the moving jaw body. This avoids the problem of needing to swing the two rotating arm connecting blocks separately, causing the teeth to disengage from the toothed rail, which would reduce the convenience of operation.

[0009] Preferably, the rebound assembly includes two torsion springs respectively sleeved on both ends of the fixed rod, with a connecting rod fixedly connected to one end of the two torsion springs facing each other, and mounting holes opened on the sidewalls of the two swing arms near the fixed rod, with the opposite ends of the two torsion springs respectively disposed in the mounting holes, and a slot opened on the top wall of the arc-shaped groove, with the connecting rod and the fixed plate respectively slidably disposed in the slot.

[0010] By adopting the above technical solution, when the positioning block approaches the fixing plate, the fixing plate and the connecting rod slide in the slot, and the connecting rod is abutted between the side wall of the slot and the fixing plate to fix the connecting rod. Then, by swinging the swing arm, the swing arm is disengaged from the toothed plate, and the torsion spring is twisted. After that, by releasing the swing arm, the torsion spring rebounds and engages the swing arm with the toothed plate, automatically locking the moving jaw body.

[0011] Preferably, a handle is provided on one side wall of the moving jaw body, and one end of the handle is fixedly connected to the threaded rod.

[0012] By adopting the above technical solution, the threaded rod can be easily rotated via the knob.

[0013] In summary, this application includes at least one of the following beneficial technical effects:

[0014] This application utilizes a combination of a fixed rod, a threaded rod, and a positioning block. During use, rotating the threaded rod brings the positioning block closer to the fixed plate, causing the fixed plate to slide into the arc-shaped groove, positioning the fixed rod within the groove. Then, swinging one of the swing arms causes the fixed rod to simultaneously swing the other swing arm, disengaging it from the toothed plate and allowing the moving jaw to slide on the base. A spring-loaded assembly then springs the swing arm back, engaging it with the toothed plate and automatically locking the moving jaw. This design minimizes the need to separately swing the two rotating arm connecting blocks, which would disengage the teeth from the toothed rail and reduce operational convenience. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of an automatic locking jaw device according to an embodiment of this application;

[0016] Figure 2 This is a schematic diagram illustrating the connection structure between the mounting block and the fixing rod, which is the main embodiment of this application.

[0017] Figure 3 This is a schematic diagram illustrating the main structure of the mounting block in the embodiments of this application;

[0018] Figure 4 This is a schematic diagram illustrating the main connecting rod structure in Embodiment 1 of this application.

[0019] Reference numerals: 1. Base; 3. Moving jaw body; 4. Tooth plate; 6. Fixing rod; 7. Swing arm; 8. Threaded rod; 11. Torsion spring; 12. Connecting rod; 13. Mounting hole; 15. Button handle; 24. Mounting block; 25. Mounting groove. Detailed Implementation

[0020] The following is in conjunction with the appendix Figures 1-4 This application will be described in further detail.

[0021] This application discloses an automatic locking device for moving jaws.

[0022] Reference Figure 1 , Figure 2 and Figure 3 An automatic locking device for moving jaws includes a base 1, a fixed jaw mounted on one end of the upper surface of the base 1, and a moving jaw body 3 slidably disposed on the upper surface of the base 1. The base 1 is provided with a locking assembly for locking the moving jaw body 3. The locking assembly includes a toothed plate 4, a fixed rod 6, a swing arm 7, a threaded rod 8, a mounting block 24, and a mounting groove 25.

[0023] Two toothed plates 4 are provided, which are fixedly connected to the two side walls of the base 1 respectively. The fixed rod 6 is provided in the moving jaw body 3. Two swing arms 7 are provided, which are fixedly connected to the two ends of the fixed rod 6 respectively. The end of the swing arm 7 away from the fixed rod 6 is engaged with the toothed plate 4. The threaded rod 8 is rotatably connected to the inside of the moving jaw body 3. The mounting block 24 is threadedly connected to the threaded rod 8. The upper surface of the mounting block 24 is provided with a mounting groove 25 for preventing the fixed rod 6. The fixed rod 6 and the mounting block 24 are provided with spring-loaded components for limiting the swing of the swing arm 7.

[0024] Reference Figure 2 , Figure 3 and Figure 4The rebound assembly includes two torsion springs 11 respectively fitted at both ends of the fixed rod 6. The opposite ends of the two torsion springs 11 are fixedly connected to the connecting rod 12. The sidewalls of the two swing arms 7 near the fixed rod 6 have mounting holes 13. The opposite ends of the two torsion springs 11 are respectively set in the mounting holes 13. The sidewall of the mounting block 24 has a slot for locking the connecting rod 12 to fix the connecting rod 12. By swinging the swing arm 7, the swing arm 7 is disengaged from the toothed plate 4, and the torsion springs 11 are twisted. Then, by releasing the swing arm 7, the torsion springs 11 rebound and engage the swing arm 7 with the toothed plate 4, automatically locking the moving jaw body 3.

[0025] Reference Figure 1 and Figure 2 A handle 15 is provided on one side wall of the moving jaw body 3, and one end of the handle 15 is fixedly connected to the threaded rod 8.

[0026] The implementation principle of the automatic locking moving jaw device in this application embodiment is as follows: In use, by placing the fixed rod 6 into the mounting groove 25, the connecting rod 12 is inserted into the slot, and the torsion spring 11 is fixed. When one swing arm 7 swings, the swing arm 7 drives the fixed rod 6 to rotate, causing the fixed rod 6 to drive the other swing arm 7 to swing simultaneously, disengaging the swing arm 7 from the toothed plate 4, allowing the moving jaw body 3 to slide on the base 1 and approach the fixed jaw. At the same time, the torsion spring 11 twists. When the swing arm 7 is released, the torsion spring 11 rebounds, engaging the swing arm 7 with the toothed plate 4, and automatically locking the moving jaw body 3. This avoids the problem of needing to swing the two rotating arm connecting blocks separately, causing the teeth to disengage from the toothed track, which reduces the convenience of operation.

[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. An automatic locking device for movable jaws, comprising a base (1) and a movable jaw body (3) slidably disposed on the upper surface of the base (1), wherein the base (1) is provided with a locking assembly for locking the movable jaw body (3), characterized in that: The locking assembly includes two toothed plates (4) fixedly connected to the side walls of the base (1) respectively. A fixing plate (5) is fixedly connected to one side wall inside the moving jaw body (3). A fixing rod (6) is provided at one end of the fixing plate (5) away from the moving jaw body (3). A swing arm (7) is fixedly connected to both ends of the fixing rod (6). The swing arm (7) is engaged with the toothed plate (4) at one end away from the fixing rod (6). A threaded rod (8) is rotatably connected inside the moving jaw body (3). A positioning block (9) is threadedly connected to the threaded rod (8). The positioning block (9) is located on one side of the fixing rod (6). An arc groove (10) adapted to the fixing plate (5) is opened on one side wall of the positioning block (9). A spring-loaded assembly for limiting the swing arm (7) is provided on the fixing rod (6) and the positioning block (9).

2. The automatic locking jaw device according to claim 1, characterized in that: The rebound assembly includes two torsion springs (11) respectively sleeved on both ends of the fixed rod (6), and a connecting rod (12) is fixedly connected to one end of the two torsion springs (11) facing each other. The two swing arms (7) have mounting holes (13) on the side wall near the fixed rod (6).

3. The automatic locking jaw device according to claim 2, characterized in that: The two torsion springs (11) are respectively disposed in the mounting holes (13) at opposite ends. The top wall of the arc groove (10) is provided with a slot (14). The connecting rod (12) and the fixing plate (5) are respectively slidably disposed in the slot (14).

4. The automatic locking jaw device according to claim 3, characterized in that: The moving jaw body (3) has a button (15) on one side wall, and one end of the button (15) is fixedly connected to the threaded rod (8).

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