Precise flat tongs for bench worker

Abstract

The utility model discloses precise flat tongs for bench workers, which comprise a base (1), one end of the base (1) is provided with a fixed tong body (2) and a movable tong body (4) in sliding connection with the base (1), and the other end of the base (1) is provided with a moving mechanism for driving the movable tong body (4) to be far away from or close to the fixed tong body (2). The clamp is characterized in that jaw grooves capable of transversely positioning a workpiece are formed in the opposite sides of the fixed clamp body (2) and the movable clamp body (4), and disc-shaped screws (3) capable of longitudinally positioning the workpiece in the jaw grooves are arranged above the fixed clamp body (2) and the movable clamp body (4) respectively. The clamp is simple in structure and convenient to refit, the jaw groove transversely positions a workpiece through common rotation and force application of the lead screw and the dish-shaped screw, the dish-shaped screw longitudinally positions the workpiece, the limiting guide block is used for guiding and limiting, accurate clamping of the thin plate workpiece is achieved, it is guaranteed that the thin plate workpiece is not loosened in the clamp machining process, and the machining efficiency is improved. Therefore, the machining precision of the sheet workpiece is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of benchwork, and in particular to a precision flat-nose pliers for benchwork. Background Art

[0002] In the existing benchwork field, the sheet material is first fixed with a flat-nose pliers before processing. For example, the Chinese utility model patent with the announcement number CN219359217U discloses "a kind of fast clamping flat-nose pliers", which clamps the workpiece through a fixed plate and a movable push plate. This clamping method has certain defects. When clamping a thin plate workpiece, due to the small force area and limited clamping force, the thin plate workpiece is easy to loosen when processing the thin plate workpiece, thereby affecting the processing accuracy of the thin plate workpiece. Summary of the invention

[0003] The utility model aims to provide a precision flat-nose pliers for fitters which can clamp thin plate workpieces, so as to overcome the loosening phenomenon that occurs during the clamping process of thin plate workpieces in the prior art.

[0004] The utility model adopts the following technical scheme to achieve the purpose of the invention. It is a precision flat-nose pliers for fitters, which includes a base, a fixed pliers body and a movable pliers body slidably connected to the base are arranged on one end of the base, and a moving mechanism for driving the movable pliers body away from or close to the fixed pliers body is arranged on the other end. The fixed pliers body and the movable pliers body are arranged on the opposite sides thereof. A jaw groove for transversely positioning a workpiece is arranged, and a disc screw for longitudinally positioning the workpiece in the jaw groove is arranged on the upper part of the fixed pliers body and the movable pliers body.

[0005] The jaw groove on the fixed jaw body of the utility model is a fixed jaw body trapezoidal groove, and the jaw groove on the movable jaw body is a movable jaw body trapezoidal groove. The two trapezoidal grooves are arranged opposite to each other, and one side of the width direction of the two trapezoidal grooves is provided with a threaded hole matched with a butterfly screw, and the butterfly screw contacts the other side of the width direction of the trapezoidal groove through the threaded hole.

[0006] The movable mechanism of the utility model comprises a screw support seat, a screw is installed on the screw support seat through a copper sleeve, one end of the screw is connected with a movable pliers body through a screw connection block, and the other end is provided with a handle.

[0007] The screw support seat of the utility model is fixed to the base by means of hexagon socket screws, the copper sleeve is provided with a trapezoidal internal thread, and the copper sleeve is locked on the screw support seat by means of a set screw; the screw connecting block is provided with a groove, and an open retaining ring is provided at the end of the screw near the groove of the screw connecting block.

[0008] The utility model is convenient for guiding and limiting. The base is provided with an isosceles trapezoidal limiting groove, and the bottom of the movable cone is provided with a limiting guide sliding block which is slidably connected with the isosceles trapezoidal limiting groove.

[0009] Due to the adoption of the above-mentioned technical scheme, the utility model achieves the purpose of the invention better, has a simple structure and is easy to modify, and the lead screw and the disc screw are rotated together to apply force so that the jaw groove positions the workpiece horizontally and the disc screw positions the workpiece longitudinally, and the limiting guide block is used for guiding and limiting, so as to achieve precise clamping of the thin plate workpiece to ensure that the thin plate workpiece will not loosen during the processing process, thereby ensuring the processing accuracy of the thin plate workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the structure of the utility model.

[0011] Figure 2 It is a cross-sectional view of the utility model.

[0012] Figure 3 The utility model is a schematic diagram of the connection between the lead screw and the movable pliers body through the open retaining ring.

[0013] Figure 4 It is a schematic diagram of the connection between the limit guide block and the movable clamp body of the utility model.

[0014] In the figure: 1. Base; 1a. Isosceles trapezoidal limit groove; 2. Fixed pliers body; 2a. Fixed pliers body trapezoidal groove; 3. Disc screw; 4. Movable pliers body; 4a. Movable pliers body trapezoidal groove; 5. Open retaining ring; 6. Screw connecting block; 6a. Screw connecting block groove; 7. Screw; 8. Screw support seat; 9. Set screw; 10. Copper sleeve; 11. Handle; 12. Limit guide block; 13. First hexagon socket screw; 14. Second hexagon socket screw; 15. Third hexagon socket screw; 16. Fourth hexagon socket screw. DETAILED DESCRIPTION

[0015] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0016] Depend on Figure 1 , Figure 2 , Figure 3 , Figure 4 It can be seen that a precision flat-nose pliers for fitters includes a base 1, one end of which is provided with a fixed pliers body 2 and a movable pliers body 4 slidably connected to the base, and the other end is provided with a moving mechanism for driving the movable pliers body 4 away from or close to the fixed pliers body 2. The fixed pliers body 2 is fixed to the base 1 by a second hexagonal screw 14, and the fixed pliers body 2 and the movable pliers body 4 are provided with jaw grooves on the opposite sides thereof for transversely positioning the workpiece, and the fixed pliers body 2 and the movable pliers body 4 are respectively provided with disc screws 3 on the top thereof for longitudinally positioning the workpiece in the jaw groove.

[0017] The jaw groove on the fixed jaw body 2 described in the utility model is a fixed jaw body trapezoidal groove 2a, and the jaw groove on the movable jaw body 4 is a movable jaw body trapezoidal groove 4a. The two trapezoidal grooves are arranged opposite to each other, and one side of the width direction of the two trapezoidal grooves is provided with a threaded hole that cooperates with the butterfly screw 3, and the butterfly screw 3 contacts with the other side of the width direction of the trapezoidal groove through the threaded hole.

[0018] The movable mechanism of the utility model comprises a screw support seat, the screw is installed on the screw support seat 8 through a copper sleeve, one end of the screw is connected to the movable pliers body through a screw connecting block 6, and the other end is provided with a handle 11.

[0019] The screw support seat 8 of the utility model is fixed on the base 1 by the fourth hexagon socket screw 16, the copper sleeve 10 is provided with a trapezoidal internal thread, and the copper sleeve 10 is locked on the screw support seat 8 by the set screw 9; the screw connecting block 6 is provided with a groove 6a, and the screw 7 is provided with an open retaining ring 5 at the end near the groove 6a of the screw connecting block.

[0020] The base of the utility model is provided with an isosceles trapezoidal limiting groove 1a, and the bottom of the movable clamp body 4 is provided with a limiting guide sliding block which is slidably connected with the isosceles trapezoidal limiting groove 1a.

[0021] Figure 1 In the figure, the precision flat-nose pliers for fitters include a base 1, a fixed pliers body 2, a disc screw 3, a movable pliers body 4, a lead screw connection block 6, a lead screw 7, a lead screw support seat 8, a copper sleeve 10, and a handle 11. The lead screw connection block 6 is fixed to the movable pliers body 4 by a third hexagonal screw 15.

[0022] Figure 2 In the figure, a fixed jaw body trapezoidal groove 2a is provided in the fixed jaw body 2, and a movable jaw body trapezoidal groove 4a is provided in the movable jaw body 4. The two trapezoidal grooves are arranged opposite to each other, so as to realize the stable clamping of thin plate parts.

[0023] Figure 2 In the figure, a butterfly screw 3 is provided on the fixed caliper body 2, and a butterfly screw 3 is provided on the movable caliper body 4. By rotating the butterfly screw 3, the other side of the fixed caliper body trapezoidal groove 2a and the movable caliper body trapezoidal groove 4a in the width direction can be reached respectively.

[0024] Figure 2 In the embodiment, a copper sleeve 10 is arranged in the screw support seat 8, and the screw 7 penetrates the copper sleeve 10 and the screw connecting block 6. The screw 7 is rotated clockwise to allow the movable pliers body 4 to approach the fixed pliers body 2.

[0025] Figure 3 In the figure, a groove 6a is provided in the screw connecting block 6, and an open retaining ring 5 is provided on the shaft neck of the screw 7 near the movable caliper body 4. Rotating the screw 7 counterclockwise can realize the movable caliper body 4 away from the fixed caliper body 2.

[0026] Figure 4In the figure, an isosceles trapezoidal limit guide groove 1a is provided in the base 1, and the limit guide block 12 is fixed to the movable clamp body 4 by a first hexagon socket screw 13. When the lead screw 7 is rotated, the movable clamp body 4 can move towards or away from the fixed clamp body 2 in a straight line, and the stability of clamping thin plate parts can also be ensured.

[0027] If you need to clamp thin plate parts, turn the handle 11 clockwise or counterclockwise to rotate the screw 7 to adjust the movable pliers 4 to a suitable position. First, load the thin plate parts, manually turn the handle 11 clockwise, and drive the movable pliers 4 to approach the fixed pliers 2 through the rotation of the screw 7 to achieve the longitudinal positioning of the thin plate parts; then tighten the disc screws 3 on the movable pliers 4 and the fixed pliers 2 to achieve the lateral positioning of the thin plate parts; by accurately and firmly clamping the thin plate parts, the clamping of the thin plate parts can be successfully completed. After the thin plate parts are clamped, the disc screw 3 can be loosened first, and then the screw 7 can be rotated counterclockwise with the handle 11 to loosen the thin plate parts, and then the thin plate parts can be removed.

[0028] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A precision flat-nose pliers for fitters, comprising a base (1), a fixed pliers body (2) and a movable pliers body (4) slidably connected to the base (1) are provided at one end of the base (1), and a moving mechanism for driving the movable pliers body (4) away from or close to the fixed pliers body (2) is provided at the other end, characterized in that: The fixed pliers (2) and the movable pliers (4) are each provided with a jaw groove capable of laterally positioning a workpiece, and the fixed pliers (2) and the movable pliers (4) are each provided with a disc screw (3) on the top thereof capable of longitudinally positioning a workpiece in the jaw groove.

2. The precision flat-nose pliers for fitters according to claim 1, characterized in that: The jaw groove on the fixed jaw body (2) is a fixed jaw body trapezoidal groove (2a), and the jaw groove on the movable jaw body (4) is a movable jaw body trapezoidal groove (4a). The two trapezoidal grooves are arranged opposite to each other, and the two trapezoidal grooves are provided with a threaded hole on one side in the width direction thereof for matching with the butterfly screw (3). The butterfly screw (3) contacts with the other side in the width direction of the trapezoidal groove through the threaded hole.

3. The precision flat-nose pliers for fitters according to claim 1, characterized in that: The moving mechanism comprises a screw support seat (8), a screw (7) is mounted on the screw support seat (8) via a copper sleeve (10), one end of the screw (7) is connected to the movable pliers body (4) via a screw connecting block (6), and the other end is provided with a handle (11).

4. The precision flat-nose pliers for fitters according to claim 3, characterized in that: The screw support seat (8) is fixed to the base (1) by means of a hexagon socket screw, the copper sleeve (10) is provided with a trapezoidal internal thread, and the copper sleeve (10) is locked on the screw support seat (8) by means of a set screw (9); the screw connecting block (6) is provided with a groove (6a), and an open retaining ring (5) is provided at the end of the screw (7) near the groove (6a) of the screw connecting block.

5. A precision flat-nose pliers for fitters according to claim 1, 2, 3 or 4, characterized in that: An isosceles trapezoidal limiting groove (1a) is provided on the base, and a limiting guide sliding block (12) is provided at the bottom of the movable clamp body (4) and is slidably connected to the isosceles trapezoidal limiting groove (1a).

Images