Precise flat tongs
By designing a precision flat-mouth pliers with adjustable height, the problem of uneven clamping force when clamping high or low workpieces is solved, and the stability and high-quality machining of the workpiece are achieved during the processing process.
Patent Information
- Application Number
- CN202422161621.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-04
- Publication Date
- 2025-06-13
- Estimated Expiration
- 2034-09-04
AI Technical Summary
When existing flat-mouth jaws clamp higher or lower workpieces, the jaw position is inappropriate, resulting in uneven clamping force distribution, and the workpiece is prone to loosening during processing, affecting the processing quality.
A precision flat-mouth pliers are designed to connect the left baffle and slide rod through the left slide and the right slide on the frame body. The sliding connection between the lower push plate and the upper push plate is matched with the sliding connection between the lower push plate and the upper push plate. The structure of the insertion rod and the slot ensures that the height of the lower push plate and the upper push plate is adjustable and ensures that the clamping force of the workpiece is uniform.
Through this design, the stability of the workpiece during processing is ensured, and the problems of excessive local stress on the high workpiece and insufficient stress on other parts are avoided, thereby improving the processing quality.
Smart Images
Figure CN222971941U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of machining, and particularly relates to a precision parallel jaw vice. Background Art
[0002] A parallel jaw vice is a common mechanical tool, mainly used for clamping workpieces to ensure the stable and precise position of the workpieces during the machining process. When using a parallel jaw vice to clamp a workpiece, the machined surface of the workpiece must be higher than the jaw, otherwise parallel shims need to be used to raise the workpiece to avoid interference between the cutting tool and the jaw. When reinforcing a lower workpiece, if the surface of the shim is not flat and there is a gap between the shim and the workpiece or the parallel jaw vice, the vibration during machining may cause the shim to shift, affecting the clamping efficiency of the workpiece. Since the height of the jaw of the parallel jaw vice is fixed when clamping the workpiece, when clamping a higher workpiece, the position of the jaw will be too low. When the position of the jaw is too low, the inappropriate position of the jaw will cause the applied clamping force to be unevenly distributed, resulting in excessive local stress on the workpiece while insufficient stress on other parts, and it is easy to loosen during the machining process. Therefore, when machining lower and higher workpieces with the existing parallel jaw vice, it is not conducive to the precision machining operation of the workpiece. Summary of the Utility Model
[0003] The utility model provides a precision parallel jaw vice, which has the characteristic of solving the problem that the existing parallel jaw vice is not conducive to tightly fixing higher and lower workpieces.
[0004] The utility model provides the following technical solutions: including a frame body, a left slideway and a right slideway are opened on the frame body, a left baffle and a slide bar are respectively slidably connected to the inner walls of the left slideway and the right slideway, a lower push plate is slidably connected to the top of the frame body, an upper threaded rod is threadedly connected to the slide bar, an upper push plate is detachably connected to the lower push plate, clamping grooves that are respectively engaged with one end of the clamping groove are opened on both the lower push plate and the upper push plate, the lower push plate and the upper push plate are connected by an insertion rod, a chute is opened at the bottom of the slide bar, a sliding block is slidably connected to the inner wall of the chute, and a lower threaded rod that is matched with the upper threaded rod is threadedly connected to the sliding block.
[0005] Wherein, a support seat is installed at the bottom of the frame body, corresponding clamping holes are opened on the upper push plate and the lower push plate, and the insertion rod is matched with the clamping holes.
[0006] Wherein, an upper docking plate is fixedly connected to one end of the frame body, a lower docking plate is arranged below the upper docking plate, the lower docking plate is fixedly connected to one side of the left baffle, an adjusting rod is rotatably connected to the lower docking plate, and the adjusting rod is threadedly connected to the upper docking plate.
[0007] Wherein, a limiting groove is opened on the inner wall of the chute, and a slider that is matched with the limiting groove is fixedly connected to the connection part of the sliding block and the chute.
[0008] Wherein, a support block is fixedly connected to the connection part of the sliding rod and the right slideway, and the sliding rod and the support block are matched with the inner wall of the right slideway.
[0009] The beneficial effects of the present utility model are as follows: By sliding the left baffle inside the lower push plate, and then docking the insertion rod with the lower push plate, the upper threaded rod can correspond to the card slot opened on the upper push plate. Then, in cooperation with the sliding block sliding inside the sliding groove, the lower threaded rod can simultaneously support the lower push plate, ensuring the uniformity of the clamping force on the workpiece, thereby ensuring the stability during workpiece processing, avoiding loosening of the workpiece due to uneven force when processing high workpieces, and thus improving the processing quality.
[0010] Parts not involved in this device are the same as the prior art or can be implemented by using the prior art. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;
[0012] Figure 2 is a three-dimensional structural schematic diagram of the insertion rod in the present utility model;
[0013] Figure 3 is a three-dimensional structural schematic diagram of the frame body in the present utility model;
[0014] Figure 4 For the present utility model Figure 2 magnification of A.
[0015] In the figure: 1, frame body; 11, support seat; 12, left slideway; 13, right slideway; 2, lower push plate; 21, left baffle; 22, upper push plate; 23, card hole; 24, insertion rod; 25, card slot; 26, upper docking plate; 261, lower docking plate; 27, adjusting rod; 3, sliding rod; 31, upper threaded rod; 32, sliding groove; 33, limiting groove; 34, sliding block; 35, lower threaded rod; 36, support block. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0016] Please refer to Figures 1-4, the present utility model provides the following technical solutions: It includes a frame body 1. A left slideway 12 and a right slideway 13 are provided on the frame body 1. A left baffle 21 and a slide rod 3 are respectively slidably connected to the inner walls of the left slideway 12 and the right slideway 13. A lower push plate 2 is slidably connected to the top of the frame body 1. An upper threaded rod 31 is threadedly connected to the slide rod 3. An upper push plate 22 is detachably connected to the lower push plate 2. Card slots 25 that are engaged with one end of the card slot 25 are provided on both the lower push plate 2 and the upper push plate 22. The lower push plate 2 and the upper push plate 22 are connected by an insertion rod 24. A chute 32 is provided at the bottom of the slide rod 3. A sliding block 34 is slidably connected to the inner wall of the chute 32. A lower threaded rod 35 that matches the upper threaded rod 31 is threadedly connected to the sliding block 34.
[0017] In this embodiment: The frame 1 is the carrier of the loading device. The left slideway 12 and the right slideway 13 opened on the frame 1 are respectively used to connect the left baffle 21 and the slide rod 3. The left baffle 21 slides on the inner wall of the left slideway 12, and the position of the left baffle 21 is fixed. It can limit one side of the workpiece by sliding the left baffle 21 on the inner wall of the left slideway 12, and can be appropriately adjusted according to the height of the workpiece. Cooperating with the slide rod 3 sliding on the inner wall of the right slideway 13, its height can also be adjusted. The upper threaded rod 31 threadedly connected to the slide rod 3 can support the clamping groove 25 opened on one side of the lower push plate 2, so that rotating the upper threaded rod 31 to adjust its position on the slide rod 3 can push the lower push plate 2, so that the lower push plate 2 and the left baffle 21 can clamp the workpiece. Adjust the left baffle 21 to an appropriate height, so that after the lower workpiece is clamped by the lower push plate 2 and the left baffle 21, it can be ensured that it is below the processing surface of the workpiece, avoiding that the tool may touch the jaw during cutting when processing the workpiece, resulting in tool damage or reduced processing quality. When processing a higher workpiece, due to the limited clamping height of the lower push plate 2, the pressure on the higher workpiece is concentrated at the bottom position of the workpiece, resulting in excessive local stress on the workpiece and insufficient stress on other parts, which is likely to cause loosening during the processing and affect the processing quality. At this time, an upper push plate 22 with a certain height can be installed above the lower push plate 2 according to the height of the workpiece, so that the heights of the lower push plate 2 and the upper push plate 22 after being connected by the insertion rod 24 can be below the processing surface of the higher workpiece. At the same time, the lower push plate 2 and the upper push plate 22 can apply pressure to one side of the workpiece, and cooperate with the upward sliding of the left baffle 21 to increase the pressure surface of the workpiece, ensuring the firm clamping of the workpiece. When applying pressure, at this time, the slide rod 3 can slide upward, so that the upper threaded rod 31 threadedly connected to the slide rod 3 is engaged with the clamping groove 25 opened on one side of the upper push plate 22, so that the upper threaded rod 31 applies pressure to one side of the upper push plate 22. Then, the sliding block 34 is slidably connected to the inner wall of the chute 32 opened at the bottom of the slide rod 3, so that the height of the sliding block 34 can be at different heights on the upward sliding of the slide rod 3 to correspond to the upper push plates 22 at different heights. When the sliding block 34 can correspond to the clamping groove 25 opened on one side of the lower push plate 2, the lower threaded rod 35 threadedly connected to the sliding block 34 can support the lower push plate 2, thereby ensuring that both the left baffle 21 and one side of the lower push plate 2 receive a thrust force, ensuring the uniformity of the clamping force on the workpiece, and thus ensuring the stability during workpiece processing, avoiding loosening due to uneven stress on the high workpiece during processing, and thereby improving the processing quality.
[0018] A support base 11 is installed at the bottom of the frame body 1. Corresponding card holes 23 are provided on the upper push plate 22 and the lower push plate 2, and the insertion rod 24 is matched with the card hole 23. The support base 11 installed at the bottom of the frame body 1 can support the frame body 1, and the card holes 23 provided on the upper push plate 22 and the lower push plate 2 are used to enable the upper push plate 22 and the lower push plate 2 to be connected by the insertion rod 24, so that the lower push plate 2 and the upper push plate 22 are fixedly connected.
[0019] One end of the frame body 1 is fixedly connected with an upper docking plate 26. A lower docking plate 261 is provided below the upper docking plate 26. The lower docking plate 261 is fixedly connected to one side of the left baffle 21. An adjusting rod 27 is rotatably connected to the lower docking plate 261. The adjusting rod 27 is threadedly connected to the upper docking plate 26. The upper docking plate 26 fixedly connected to one end of the frame body 1 can install the adjusting rod 27, so that the adjusting rod 27 can be threadedly connected to the upper docking plate 26 to adjust its height on the upper docking plate 26. And the lower docking plate 261 is fixedly connected to one side of the left baffle 21, so that the lower docking plate 261 can drive the left baffle 21 to drive it to perform a synchronous upward sliding displacement.
[0020] A limiting groove 33 is provided on the inner wall of the sliding groove 32. A slider matched with the limiting groove 33 is fixedly connected to the connection part of the sliding block 34 and the sliding groove 32. The limiting groove 33 provided on the inner wall of the sliding groove 32.
[0021] A support block 36 is fixedly connected to the connection part of the sliding rod 3 and the right slideway 13. The sliding rod 3 and the support block 36 are matched with the inner wall of the right slideway 13. The support block 36 fixedly connected to one end of the sliding rod 3 can limit the up and down sliding of the sliding rod 3 in the right slideway 13, so that the support block 36 can slide vertically on the inner wall of the right slideway 13, ensuring that the support block 36 can slide vertically so that the upper threaded rod 31 can correspond to the card slot 25.
[0022] The working principle and usage process of the present utility model: The left baffle 21 slides on the inner wall of the left slideway 12 to limit one side of the workpiece, and can be appropriately adjusted according to the height of the workpiece. The slide bar 3 slides on the inner wall of the right slideway 13, so that its height can also be adjusted. The lower push plate 2 is on one side of the slide bar 3 and is supported by the upper threaded rod 31, so that the lower push plate 2 and the left baffle 21 can clamp the workpiece. When clamping a higher workpiece, the lower push plate 2 and the upper push plate 22 can be connected. According to the height of the workpiece, the insertion rod 24 of a certain height is connected and installed on the lower push plate 2. By sliding the slide bar 3 upward, the upper threaded rod 31 threadedly connected to the slide bar 3 is engaged with the card slot 25 opened on one side of the upper push plate 22. Then, by sliding the sliding block 34 upward in height to make it correspond to the upper push plate 22, the sliding block 34 can correspond to the card slot 25 opened on one side of the lower push plate 2, so that the lower threaded rod 35 threadedly connected to the sliding block 34 can support the lower push plate 2, thereby ensuring that both the left baffle 21 and the lower push plate 2 receive a thrust, ensuring the uniformity of the clamping force on the workpiece, and thus ensuring the stability during workpiece processing, avoiding loosening of the workpiece due to uneven force when processing a high workpiece, and thus improving the processing quality.
Claims
1. A precision flat-nose pliers, comprising a frame (1), characterized in that: The frame body (1) is provided with a left slideway (12) and a right slideway (13), the inner walls of the left slideway (12) and the right slideway (13) are slidably connected with a left baffle plate (21) and a slide rod (3) respectively, the top of the frame body (1) is slidably connected with a lower push plate (2), the slide rod (3) is threadedly connected with an upper threaded rod (31), the lower push plate (2) is detachably connected with an upper push plate (22), the lower push plate (2) and the upper The push plate (22) is provided with a slot (25) engaged with one end of the upper threaded rod (31); the lower push plate (2) and the upper push plate (22) are connected by an insert rod (24); a slide groove (32) is provided at the bottom of the slide rod (3); a sliding block (34) is slidably connected to the inner wall of the slide groove (32); and a lower threaded rod (35) matching the upper threaded rod (31) is threadedly connected to the sliding block (34).
2. A precision flat-nose pliers according to claim 1, characterized in that: A support seat (11) is installed at the bottom of the frame (1), and corresponding clamping holes (23) are opened on the upper push plate (22) and the lower push plate (2), and the insertion rod (24) matches the clamping holes (23).
3. A precision flat-nose pliers according to claim 1, characterized in that: An upper docking plate (26) is fixedly connected to one end of the frame body (1), a lower docking plate (261) is provided below the upper docking plate (26), the lower docking plate (261) is fixedly connected to one side of the left baffle (21), an adjustment rod (27) is rotatably connected to the lower docking plate (261), and the adjustment rod (27) is threadedly connected to the upper docking plate (26).
4. A precision flat-nose pliers according to claim 1, characterized in that: The inner wall of the slide groove (32) is provided with a limiting groove (33), and a sliding block matching the limiting groove (33) is fixedly connected to the connection between the sliding block (34) and the slide groove (32).
5. The precision flat-nose pliers according to claim 1, characterized in that: A support block (36) is fixedly connected to the connection between the slide bar (3) and the right slide channel (13); the slide bar (3) and the support block (36) match the inner wall of the right slide channel (13).