A type of flat-nose pliers

Abstract

This utility model discloses a flat-jaw pliers. The pliers include a base, a fixed clamping block fixedly connected to the base, a screw threadedly connected to the base, and a movable clamping block rotatably connected to the screw. The movable clamping block is slidably connected to the base. The pliers also include a mounting plate, with two side plates fixedly connected near its center. A gap exists between the two side plates, and the movable clamping block is embedded between the two side plates. The mounting plate is detachably connected to the movable clamping block via a connector. Two clamping plates are slidably connected to the mounting plate, with the two side plates located between the two clamping plates. A moving mechanism is provided between each clamping plate and the mounting plate. This utility model fixes the mounting plate to the movable clamping block via the connector. Then, a workpiece is placed on the base. The movable and fixed clamping blocks respectively abut against both sides of the workpiece in the longitudinal direction, and the two clamping plates respectively abut against both sides of the workpiece in the transverse direction, limiting the workpiece in both directions and increasing the fixation effect.

Description

Technical Field

[0001] This utility model relates to the field of metal workpiece processing technology, and in particular to a flat-jaw pliers. Background Technology

[0002] A flat-jaw vise, also known as a machine vise, is a general-purpose clamping tool commonly used for mounting small workpieces. It is a standard accessory for milling machines and drilling machines, and is fixed to the machine tool's worktable to hold the workpiece for cutting. When fixing a workpiece, the flat-jaw vise only clamps the workpiece in one direction. Therefore, during the machining process, if the force on the workpiece along the direction it is not clamped is too large, it will cause relative movement between the workpiece and the flat-jaw vise, thus affecting the machining of the workpiece. Utility Model Content

[0003] The purpose of this utility model is to provide a flat-jaw pliers, which has the advantage of being able to limit the longitudinal and transverse directions of the workpiece, thereby increasing the fixation effect on the workpiece.

[0004] The above-mentioned technical objective of this utility model is achieved through the following technical solution: A pair of flat-jaw pliers includes a base, a fixed clamping block fixedly connected to the base, a screw threadedly connected to the base, a movable clamping block rotatably connected to the screw, and a slidable connection between the movable clamping block and the base. The pliers are characterized by further including a mounting plate, two side plates fixedly connected near the center of the mounting plate, a gap between the two side plates, the movable clamping block being embedded between the two side plates, the mounting plate being detachably connected to the movable clamping block via a connector, two clamping plates slidably connected to the mounting plate, the two side plates being located between the two clamping plates, and a moving mechanism being provided between each clamping plate and the mounting plate.

[0005] The above technical solution involves embedding the movable clamping blocks into the two side plates of the mounting plate. The mounting plate is then fixed to the movable clamping blocks via connectors. The two clamping plates are moved separately by a moving mechanism according to the length of the workpiece to be processed, increasing the distance between them. The workpiece is then placed on the base of the vise, positioned between the movable and fixed clamping blocks. Tightening the vise's screw moves the movable clamping blocks, pushing the workpiece against the fixed clamping blocks. This causes the movable and fixed clamping blocks to abut against the workpiece's longitudinal sides. Simultaneously, the moving movable clamping blocks move the mounting plate, the clamping plates on top of the mounting plate, the moving mechanism, and the clamping plates together. The moving mechanism then brings the two clamping plates closer together, abutting against the workpiece's transverse sides. By limiting the workpiece's longitudinal and transverse directions, the fixation effect is enhanced, preventing movement during cutting, drilling, or grooving. Furthermore, the mounting plate can be removed from the vise for easy transport and disassembly.

[0006] Preferably, the moving mechanism is a lead screw, there are two lead screws, the two lead screws are horizontally rotatably connected to the mounting plate, the two side plates are located between the two lead screws, and the two clamping plates are respectively fixedly connected to the two lead screw sliders.

[0007] Using the above technical solution, the movable clamping block and the fixed clamping block respectively abut against the two sides of the workpiece in the longitudinal direction. The two lead screws on the mounting plate are rotated respectively, and the two lead screws drive the clamping plates fixedly connected to their respective sliders to move. The two clamping plates move closer to each other and move to abut against the left and right sides of the workpiece in the transverse direction respectively.

[0008] Preferably, the connector includes a bidirectional lead screw and clamps. The bidirectional lead screw is horizontally rotatably connected to the upper part of the mounting plate. There are two clamps located between two clamps and the clamps are slidably connected to the mounting plate. The two sliders of the bidirectional lead screw are respectively fixedly connected to the two clamps.

[0009] Using the above technical solution, the two side plates of the mounting plate are embedded in the movable clamping block, and the movable clamping block is located between the two clamping pieces. When the bidirectional lead screw is rotated, its two sliders drive the clamping pieces connected to them to move. The two clamping pieces come closer to each other and clamp the movable clamping block between them, thereby fixing the mounting plate on the movable clamping block.

[0010] Preferably, rubber pads are fixedly connected to the surfaces of the clamping plate and the clamping piece.

[0011] The above technical solution involves embedding the movable clamping block between the two side plates of the mounting plate. Rotating the bidirectional lead screw causes its two sliders to move their respective connected clamping plates, which then clamp the movable clamping block between them. The rubber pads of the clamping plates contact the movable clamping block, increasing friction and thus improving the clamping effect on the workpiece. Simultaneously, the rubber pads prevent damage to the movable clamping block caused by the force between the clamping plates and the movable clamping block. Furthermore, a moving mechanism brings the two clamping plates closer together, with their rubber pads abutting against the workpiece's lateral sides, increasing friction and further enhancing the clamping effect. This again prevents damage to the workpiece caused by the force between the clamping plates and the workpiece.

[0012] Preferably, the ends of the two lead screws are each fixedly connected to a handle.

[0013] The above technical solution facilitates the rotation of the lead screw.

[0014] Preferably, a rotating handle is fixedly connected to the end of the bidirectional lead screw.

[0015] The above technical solution facilitates the rotation of the bidirectional lead screw. Attached Figure Description

[0016] Figure 1 This is an overall schematic diagram of the embodiment; Figure 2 This is a side view of an embodiment; Figure 3 This is a rear view of an embodiment; Figure 4 This is a top view of an embodiment; Figure 5 This is an overall schematic diagram from another perspective of the embodiment.

[0017] Reference numerals in the attached drawings: 1. Base; 2. Fixed clamping block; 3. Screw; 4. Movable clamping block; 5. Mounting plate; 6. Side plate; 7. Clamping plate; 8. Lead screw; 9. Double-acting lead screw; 10. Clamping plate; 11. Rotating handle one; 12. Rotating handle two. Detailed Implementation

[0018] The following description is merely a preferred embodiment of this utility model, and the scope of protection is not limited to this embodiment. All technical solutions falling within the scope of this utility model should be considered within the protection scope of this utility model. It should also be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

[0019] See Figures 1 to 5 A type of flat-nose pliers includes a base 1, a fixed clamping block 2 fixedly connected to the base 1, a screw 3 threadedly connected to the base 1, and a movable clamping block 4 rotatably connected to the screw 3, the movable clamping block 4 being slidably connected to the base 1. It also includes a mounting plate 5, with two side plates 6 fixedly connected near its center, the two side plates 6 having a gap between them. A horizontal double-acting screw 9 is rotatably connected to the upper part of the mounting plate 5, and two sliders of the double-acting screw 9 are respectively fixedly connected to clamping pieces 10, the two clamping pieces 10 being located between two clamping plates 7, the clamping pieces 10 being slidably connected to the mounting plate 5, and the movable clamping block 4 being embedded between the two clamping pieces 10. Two horizontal screws 8 are rotatably connected to the mounting plate 5, the two side plates 6 being located between the two screws 8, and the ends of the two screws 8 are respectively fixedly connected to rotating handles 11, the sliders of the two screws 8 being respectively fixedly connected to clamping plates 7, the two clamping plates 7 being slidably connected to the mounting plate 5, the two side plates 6 being located between the two clamping plates 7.

[0020] Working principle: The two side plates 6 of the mounting plate 5 are fitted into the movable clamping block 4, and the movable clamping block 4 is positioned between the two clamping plates 10. Rotating the double-acting screw 9 causes the two sliders of the double-acting screw 9 to move their respective connected clamping plates 10, bringing the two clamping plates 10 closer together and clamping the movable clamping block 4 between them, thus fixing the mounting plate 5 onto the movable clamping block 4. Depending on the length of the workpiece to be processed, rotating the two lead screws 8 on the mounting plate 5 causes the two lead screws 8 to move the clamping plates 7 fixedly connected to their respective sliders, moving the two clamping plates 7 further apart and increasing the distance between them.

[0021] Next, place the workpiece on the base 1 of the vise, positioned between the movable clamping block 4 and the fixed clamping block 2. Tighten the screw 3 of the vise; the screw 3 moves the movable clamping block 4, which pushes the workpiece against the fixed clamping block 2, thus causing the movable clamping block 4 and the fixed clamping block 2 to abut against the two sides of the workpiece in the longitudinal direction. Simultaneously, the moving movable clamping block 4 moves the mounting plate 5, the clamping plate 7 on top of the mounting plate 5, the lead screw 8, and the clamping pieces 10 together. Then, rotate the two lead screws 8 in the opposite direction, causing the two lead screws 8 to move the two clamping plates 7 back, bringing them closer together and abutting against the two sides of the workpiece in the transverse direction. By limiting the workpiece in both the longitudinal and transverse directions, the fixation effect on the workpiece is increased, preventing the workpiece from moving during cutting, drilling, or grooving. Furthermore, rotating the bidirectional lead screw 9 moves the two clamping pieces 10 away from each other, separating the clamping pieces 10 from the movable clamping block 4. This allows the mounting plate 5 to be removed from the vise, facilitating transportation and disassembly.

Claims

1. A pair of flat-nose pliers, comprising a base (1), a fixed clamping block (2) fixedly connected to the base (1), a screw (3) threadedly connected to the base (1), and a movable clamping block (4) rotatably connected to the screw (3), the movable clamping block (4) being slidably connected to the base (1), characterized in that, It also includes a mounting plate (5), which has two side plates (6) fixedly connected near its center. There is a gap between the two side plates (6). The movable clamping block (4) is embedded between the two side plates (6). The mounting plate (5) is detachably connected to the movable clamping block (4) through a connector. The mounting plate (5) has two clamping plates (7) slidably connected to it. The two side plates (6) are located between the two clamping plates (7). Each clamping plate (7) is provided with a moving mechanism between itself and the mounting plate (5).

2. The flat-jaw pliers according to claim 1, characterized in that, The moving mechanism is a lead screw (8), there are two lead screws (8), the two lead screws (8) are horizontally rotatably connected to the mounting plate (5), the two side plates (6) are located between the two lead screws (8), and the two clamping plates (7) are fixedly connected to the sliders of the two lead screws (8) respectively.

3. A pair of flat-jaw pliers according to claim 1, characterized in that, The connector includes a bidirectional lead screw (9) and a clamp (10). The bidirectional lead screw (9) is horizontally rotatably connected to the upper part of the mounting plate (5). There are two clamps (10), which are located between two clamps (7). The clamps (10) are slidably connected to the mounting plate (5). The two sliders of the bidirectional lead screw (9) are fixedly connected to the two clamps (10) respectively.

4. A pair of flat-jaw pliers according to claim 2, characterized in that, The ends of the two lead screws (8) are respectively fixedly connected to a rotating handle (11).

5. A pair of flat-jaw pliers according to claim 3, characterized in that, The end of the bidirectional lead screw (9) is fixedly connected to a rotating handle (12).

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