Automatic centering flat tongs for precision machining

Abstract

The utility model relates to the technical field of precision machining, and provides a pair of automatic centering flat tongs for precision machining, which comprises a tongs body, two moving blocks, two clamping plates, a swing mechanism and a driving mechanism, the tongs body is provided with a through groove, the two moving blocks are arranged on the tongs body in a sliding manner, the swing mechanism is arranged on the tongs body, and the swing mechanism is arranged between the two clamping plates. The two movable blocks are arranged in the clamp body, the two clamping plates are arranged on the two movable blocks respectively, the swing mechanism is arranged on the two movable blocks and used for adjusting the fixing angle of a workpiece, and the driving mechanism is arranged in the clamp body and used for driving the two clamping plates to clamp the workpiece. The problems that in the prior art, an operator still needs to detach the workpiece and readjust the position to fix the workpiece, the precision of angle adjustment of the workpiece is prone to being affected, and the workpiece machining efficiency is reduced are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of precision mechanical processing, in particular to an automatic centering flat-nose pliers for precision mechanical processing. Background Art

[0002] Flat-nose pliers, also known as machine vises, are a general-purpose clamp that is often used to install small workpieces. It is a random accessory of milling machines and drilling machines. It is fixed on the machine tool workbench to clamp the workpiece for cutting processing.

[0003] When using the existing flat-nose pliers, the workpiece is usually placed between the two clamping blocks, and then the operator rotates the bolt to drive one of the clamping blocks to move, thereby fixing the workpiece between the two clamping blocks. However, this method is time-consuming and labor-intensive. In order to fix the workpiece more time-saving and labor-saving, it was found through retrieval that the patent publication number CN214054432U discloses a precision machined automatic centering flat-nose pliers, in which a centering motor connected to a fixed rod drives a threaded rod connected to one side thereof to rotate, and the threaded rod drives a movable plate movably connected thereon to move, so that the movable plate is pushed by the push rod connected thereto, and the push plate connected to the right side of the push rod quickly adjusts the position of the workpiece fixed on the base, thereby realizing rapid centering of the flat-nose pliers and improving work efficiency. However, when the angle of the workpiece needs to be adjusted after the workpiece is fixed, the operator is still required to remove the workpiece and readjust the position before fixing it. This method not only easily affects the accuracy of the workpiece angle adjustment, but also reduces the efficiency of workpiece processing. Utility Model Content

[0004] The utility model provides an automatic centering flat-nose pliers for precision machining, which solves the problem in the related technology that when the angle of the workpiece needs to be adjusted, the operator still needs to remove the workpiece and readjust the position before fixing it. This method not only easily affects the accuracy of the workpiece angle adjustment, but also reduces the efficiency of workpiece machining.

[0005] The technical solution of the utility model is as follows: a precision machined automatic centering flat-nose pliers, comprising: a pliers body, a moving block, a clamping plate, a swing mechanism and a driving mechanism;

[0006] The clamp body is provided with a through slot;

[0007] There are two moving blocks, and both of the moving blocks are slidably arranged on the clamp body;

[0008] There are two clamping plates, and the two clamping plates are respectively arranged on two moving blocks;

[0009] The swing mechanism is arranged on two moving blocks and is used to adjust the angle at which the workpiece is fixed;

[0010] The driving mechanism is arranged in the clamp body and is used for driving the two clamping plates to clamp the workpiece.

[0011] Preferably, the swing mechanism comprises: a rotating plate, a gear ring, a limit gear plate and a first electric cylinder;

[0012] There are two rotating plates, which are rotatably arranged on two moving blocks respectively, and the two clamping plates are fixedly connected to the two rotating plates respectively;

[0013] There are two gear rings, and the two gear rings are fixedly connected to the two rotating plates respectively;

[0014] There are two limit tooth plates, and the two limit tooth plates are respectively meshed with two gear rings;

[0015] There are two first electric cylinders, which are respectively arranged on two moving blocks, and the output ends of the two first electric cylinders are respectively fixedly connected to two limiting tooth plates.

[0016] Furthermore, the driving mechanism includes: a slide, a driving rod, a slide shaft and a power assembly;

[0017] There are two slides, and the two slides are fixedly connected to the two moving blocks respectively;

[0018] There are two driving rods, and both of the driving rods are rotatably arranged in the caliper body;

[0019] There are two sliding shafts, which are slidably arranged on two sliding racks respectively, and the top ends of the two driving rods are fixedly connected to the two sliding shafts respectively;

[0020] The power assembly is arranged in the caliper body and is used to drive the two driving rods to swing.

[0021] Furthermore, the power assembly includes: a moving frame, a driving block, a bidirectional screw and a first motor;

[0022] There are two movable frames, and both movable frames are slidably arranged on the clamp body;

[0023] There are two driving blocks, which are rotatably arranged on two moving frames respectively, and the two driving blocks are in contact with two driving rods respectively;

[0024] The bidirectional screw is rotatably arranged in the clamp body, and screw holes are provided on the two movable frames, and the bidirectional screw is threadedly connected in the screw holes;

[0025] The first motor is arranged on the clamp body, and the output end of the first motor is fixedly connected to the bidirectional screw.

[0026] As a further solution of the present application, a slide groove is provided on each of the two driving blocks, and the two driving rods are respectively arranged in the two slide grooves.

[0027] As a further solution of the present application, the two moving blocks are each provided with a moving groove, the two rotating plates are each provided with a sliding rail, and the two sliding rails are respectively slidably arranged in the two moving grooves.

[0028] The working principle and beneficial effects of the utility model are:

[0029] 1. In the utility model, the swing mechanism is provided to facilitate adjustment of the processing angle of the workpiece when the workpiece is fixed, without the need for operators to frequently disassemble the workpiece.

[0030] 2. In the utility model, the drive mechanism is provided to facilitate driving the two clamping plates to move relative to each other, thereby stably clamping and fixing the workpiece.

[0031] 3. In the utility model, through the cooperation between the clamp body, the moving block, the clamping plate, the swing mechanism and the driving mechanism, it is convenient to adjust the processing of the workpiece when the workpiece is fixed, and effectively prevent the operator from frequently disassembling the workpiece, which saves time and labor and improves the processing efficiency of the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0033] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0034] Figure 2 It is a structural schematic diagram of the swing mechanism of the utility model;

[0035] Figure 3 It is a structural schematic diagram of the swing mechanism and the driving mechanism of the utility model;

[0036] Figure 4 It is a structural schematic diagram of the driving mechanism of the utility model.

[0037] In the figure: 1. clamp body; 2. moving block; 3. clamping plate; 4. rotating plate; 5. gear ring; 6. limit gear plate; 7. first electric cylinder; 8. slide; 9. drive rod; 10. slide shaft; 11. moving frame; 12. drive block; 13. bidirectional screw; 14. first motor; 15. slide rail. DETAILED DESCRIPTION

[0038] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0039] like Figure 1~Figure 4 As shown, this embodiment proposes an automatic centering flat-nose pliers for precision machining, including: a pliers body 1, a moving block 2, a clamping plate 3, a swinging mechanism and a driving mechanism. A through groove is opened on the pliers body 1, two moving blocks 2 are provided, and the two moving blocks 2 are both slidably set on the pliers body 1, and two clamping plates 3 are provided, and the two clamping plates 3 are respectively set on the two moving blocks 2. Through the cooperation among the pliers body 1, the moving block 2, the clamping plate 3, the swinging mechanism and the driving mechanism, it is convenient to adjust the processing of the workpiece when the workpiece is fixed, and it is effective to prevent the operator from frequently disassembling the workpiece, which is more time-saving and labor-saving, and improves the processing efficiency of the workpiece.

[0040] Among them, the swing mechanism is arranged on the two moving blocks 2, and is used for adjusting the fixing angle of the workpiece. The swing mechanism comprises: a rotating plate 4, a gear ring 5, a limit gear plate 6 and a first electric cylinder 7. There are two rotating plates 4, and the two rotating plates 4 are rotatably arranged on the two moving blocks 2 respectively. The two clamping plates 3 are respectively fixedly connected to the two rotating plates 4, and there are two gear rings 5. The two gear rings 5 ​​are respectively fixedly connected to the two rotating plates 4, and there are two limit gear plates 6. The two limit gear plates 6 are respectively meshed with the two gear rings 5. There are two first electric cylinders 7, and the two first electric cylinders 7 are respectively arranged on the two moving blocks 2. The output ends of the two first electric cylinders 7 are respectively fixedly connected with the two limit gear plates 6. Specifically, the two rotating plates 4 are rotated by the operator to adjust the clamping angle, and then the limit gear plate 6 is driven to move by the first electric cylinder 7 arranged on the moving block 2, so that the limit gear plate 6 is meshed with the gear ring 5, and then the gear ring 5 is pressed against the rotating plate 4 to limit the position.

[0041] Among them, the driving mechanism is arranged in the pliers body 1, and is used to drive the two clamping plates 3 to clamp the workpiece. The driving mechanism includes: a slide 8, a driving rod 9, a sliding shaft 10 and a power assembly. There are two slides 8, and the two slides 8 are respectively fixedly connected to the two moving blocks 2. There are two driving rods 9, and the two driving rods 9 are both rotatably arranged in the pliers body 1. There are two sliding shafts 10, and the two sliding shafts 10 are respectively slidably arranged on the two slides 8. The top ends of the two driving rods 9 are respectively fixedly connected to the two sliding shafts 10. The power assembly is arranged in the pliers body 1, and is used to drive the two driving rods 9 to swing. The power assembly includes: a moving frame 11, a driving block 12, a bidirectional screw 13 and a first motor 14. Moving grooves are provided on the two moving blocks 2, and slide rails 15 are provided on the two rotating plates 4. The two slide rails 15 are respectively slidably arranged in the two moving grooves. Slide grooves are provided on the two driving blocks 12, and the two driving rods 9 are respectively arranged in the two slide grooves. There are two frames 11, and the two mobile frames 11 are slidably arranged on the clamp body 1. There are two driving blocks 12, and the two driving blocks 12 are respectively rotatably arranged on the two mobile frames 11. The two driving blocks 12 are respectively in contact with the two driving rods 9. The bidirectional screw 13 is rotatably arranged in the clamp body 1. Screw holes are provided on the two mobile frames 11, and the bidirectional screw 13 is threadedly connected in the screw holes. The first motor 14 is arranged on the clamp body 1, and the output end of the first motor 14 is fixedly connected to the bidirectional screw 13. Specifically, the bidirectional screw 13 is driven to rotate by the first motor 14 arranged on the clamp body 1. When the bidirectional screw 13 rotates, the two mobile frames 11 are driven to move. When the mobile frame 11 moves, the driving block 12 is driven to move. When the driving block 12 moves, the driving rod 9 is driven to swing. When the driving rod 9 swings, it drives the sliding shaft 10 to slide in the slide 8, and drives the moving block 2 to move, thereby driving the two clamping plates 3 to clamp the workpiece.

[0042] In this embodiment, the device as a whole is used as a flat-nose pliers to clamp and fix the workpiece. When the workpiece needs to be fixed, the workpiece is placed between the two clamping plates 3, and then the bidirectional screw 13 is driven to rotate by the first motor 14 arranged on the pliers body 1. When the bidirectional screw 13 rotates, it drives the two moving frames 11 to move. When the moving frame 11 moves, it drives the driving block 12 to move. When the driving block 12 moves, it drives the driving rod 9 to swing. When the driving rod 9 swings, it drives the sliding shaft 10 to slide in the sliding frame 8, and drives the moving block 2 to move. The workpiece is moved, thereby driving the two clamping plates 3 to clamp the workpiece. When the angle needs to be adjusted during the workpiece clamping process, the first electric cylinder 7 drives the limit tooth plate 6 away from the gear ring 5, and then the first motor 14 rotates in the opposite direction to reduce the clamping force of the workpiece. The operator turns the rotating plate 4 to adjust the processing angle of the workpiece, and then the first electric cylinder 7 set on the moving block 2 drives the limit tooth plate 6 to move, so that the limit tooth plate 6 is engaged with the gear ring 5, and then the gear ring 5 is supported to limit the rotating plate 4.

[0043] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. 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 machined automatic centering flat-nose pliers, characterized in that: include: A pliers body (1), wherein the pliers body (1) is provided with a through slot; A moving block (2), wherein two moving blocks (2) are provided, and both moving blocks (2) are slidably arranged on the clamp body (1); A clamping plate (3), wherein two clamping plates (3) are provided, and the two clamping plates (3) are respectively arranged on the two moving blocks (2); A swing mechanism, the swing mechanism being arranged on the two moving blocks (2) and being used for adjusting the angle at which the workpiece is fixed; A driving mechanism, wherein the driving mechanism is arranged in the clamp body (1) and is used to drive the two clamping plates (3) to clamp the workpiece.

2. The automatic centering flat-nose pliers for precision machining according to claim 1, characterized in that: The swing mechanism comprises: A rotating plate (4), wherein two rotating plates (4) are provided, and the two rotating plates (4) are respectively rotatably arranged on the two moving blocks (2), and the two clamping plates (3) are respectively fixedly connected to the two rotating plates (4); A gear ring (5), wherein two gear rings (5) are provided, and the two gear rings (5) are respectively fixedly connected to the two rotating plates (4); A position-limiting tooth plate (6), wherein two position-limiting tooth plates (6) are provided, and the two position-limiting tooth plates (6) are respectively meshed with the two gear rings (5); A first electric cylinder (7), wherein two first electric cylinders (7) are provided, the two first electric cylinders (7) are respectively arranged on the two moving blocks (2), and the output ends of the two first electric cylinders (7) are respectively fixedly connected to the two limiting toothed plates (6).

3. The automatic centering flat-nose pliers for precision machining according to claim 2, characterized in that: The driving mechanism comprises: A slide (8), wherein two slides (8) are provided, and the two slides (8) are respectively fixedly connected to the two moving blocks (2); A driving rod (9), wherein two driving rods (9) are provided, and both driving rods (9) are rotatably disposed in the pliers body (1); A sliding shaft (10), wherein two sliding shafts (10) are provided, and the two sliding shafts (10) are respectively slidably arranged on the two sliding frames (8), and the top ends of the two driving rods (9) are respectively fixedly connected to the two sliding shafts (10); A power assembly is arranged in the clamp body (1) and is used to drive the two driving rods (9) to swing.

4. The automatic centering flat-nose pliers for precision machining according to claim 3, characterized in that: The power assembly comprises: A movable frame (11), wherein two movable frames (11) are provided, and both movable frames (11) are slidably arranged on the clamp body (1); A driving block (12), wherein two driving blocks (12) are provided, and the two driving blocks (12) are rotatably disposed on the two moving frames (11) respectively, and the two driving blocks (12) are in contact with the two driving rods (9) respectively; A bidirectional screw (13), the bidirectional screw (13) being rotatably disposed in the clamp body (1), and screw holes being provided on the two movable frames (11), and the bidirectional screw (13) being threadedly connected in the screw holes; A first motor (14), wherein the first motor (14) is arranged on the clamp body (1), and an output end of the first motor (14) is fixedly connected to the bidirectional screw rod (13).

5. The self-centering flat-nose pliers for precision machining according to claim 4, characterized in that: The two driving blocks (12) are each provided with a slide groove, and the two driving rods (9) are respectively arranged in the two slide grooves.

6. The self-centering flat-nose pliers for precision machining according to claim 5, characterized in that: The two moving blocks (2) are each provided with a moving groove, and the two rotating plates (4) are each provided with a slide rail (15), and the two slide rails (15) are respectively slidably arranged in the two moving grooves.

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