Positioning and clamping mechanism

Abstract

The utility model discloses a positioning and clamping mechanism, which relates to the field of plate processing and comprises a slide rail, two ends of the slide rail are connected with end plates, a two-way screw rod is connected between the two end plates, and the outer wall of the two-way screw rod is provided with a clamping mechanism in sliding connection with the slide rail. The clamping mechanism is used for clamping plates with different thicknesses; a positioning mechanism is rotationally connected to the middle position of the sliding rail, and the positioning mechanism comprises a driving unit, a rotating unit and two positioning wheels; and the driving unit is used for driving the rotating unit to rotate. Through the arrangement of the driving mechanism, the rotating mechanism and the protractor, after the angle adjusting technology, whether an angle error exists or not can be judged by observing the dislocation angle of the center scale and the protractor, and if the angle error exists, a plate cannot be cut, so that defective products are avoided.

Description

Technical Field

[0001] The utility model relates to the field of sheet processing, and particularly relates to a positioning and clamping mechanism. Background Art

[0002] When processing sheets, according to the products to be processed, sheets of different shapes need to be cut out. Among them, the edges of the cut sheets have various shapes, and the straight line and oblique line shapes are the most common.

[0003] When cutting the bevel edge of a sheet, a preset angle needs to be cut according to the structure of the product. In the prior art, the angle of the positioning wheel is adjusted by an electric push cylinder. The stepping motor in the electric push cylinder drives the lead screw to rotate. When the lead screw rotates one circle, the lead screw seat moves a preset distance (such as: 1 mm). By converting the pushing length into the pushing angle, the purpose of angle adjustment can be achieved. However, during the long-term use of the electric push cylinder, errors (including but not limited to: wear) are inevitable. At this time, they cannot be detected in time. Since the angle adjustment is achieved by adjusting the length, once an error occurs, it will inevitably cause defective products with larger errors. Content of the Utility Model

[0004] The purpose of the utility model is to provide a positioning and clamping mechanism to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: A positioning and clamping mechanism includes a slide rail, end plates are connected to both ends of the slide rail, a bidirectional lead screw is connected between the two end plates, and a clamping mechanism slidably connected to the slide rail is arranged on the outer wall of the bidirectional lead screw. The clamping mechanism is used to clamp sheets of different thicknesses;

[0006] A positioning mechanism is rotatably connected to the middle position of the slide rail. The positioning mechanism includes a driving unit, a rotating unit and two positioning wheels;

[0007] The driving unit is used to drive the rotating unit to rotate. The rotating unit in the rotating state is used to drive the two positioning wheels on the same axis to rotate around the rotation point of the slide rail and the positioning mechanism as the center of the circle;

[0008] The two rotated positioning wheels are used to position one side of the sheet to be processed.

[0009] As a further scheme of the utility model: The clamping mechanism includes a connecting plate connected to the outer wall of the bidirectional lead screw through a lead screw seat, and a slider formed at one end of the connecting plate and slidable with the inner wall of the slide rail;

[0010] The other end of the sliding rail is fixedly connected with a fixed clamping plate, and a movable clamping plate is slidably connected up and down at the other end of the sliding rail. The movable clamping plate is located below the fixed clamping plate;

[0011] The top end of the movable clamping plate is rotatably connected with a stud that penetrates above the fixed clamping plate. The top end of the stud is fixedly connected with a handle, and the stud is in threaded connection with the fixed clamping plate.

[0012] As a further solution of the present utility model: The driving unit includes an electric push cylinder installed at the bottom end of the sliding rail. The output end of the electric push cylinder is connected with a rotating seat. A rotating shaft is rotatably connected inside the rotating seat. The top end of the rotating shaft is rotatably connected with a sliding rod. The electric push cylinder and the sliding rod are offset in the up-and-down position;

[0013] The outer wall of the sliding rod is slidably connected with a sleeve rod, and the top end of the sleeve rod is fixedly connected with a connecting shaft.

[0014] As a further solution of the present utility model: The rotating unit includes two rotating plates fixedly assembled on the outer wall of the connecting shaft. The two rotating plates are respectively located above and below the sliding rail. A rotating shaft penetrating the sliding rail is arranged at the central position of the two rotating plates. The rotating shaft is rotatably connected with the sliding rail;

[0015] Connecting frames are fixedly installed on the side surfaces of the other ends of the two rotating plates close to each other. Two positioning wheels are rotatably connected between the two connecting frames.

[0016] As a further solution of the present utility model: Centering scales are respectively opened at the inner ends of the two rotating plates close to the connecting shaft, and a protractor is fixedly installed at the back end of the sliding rail.

[0017] As a further solution of the present utility model: A vertical groove is vertically opened at one end of the connecting plate close to the movable clamping plate. A sliding block that is slidably connected with the vertical groove is formed at one end of the movable clamping plate close to the vertical groove. The cross sections of the sliding block and the vertical groove are both in a "convex" structure.

[0018] As a further solution of the present utility model: One end of one end plate is provided with one of a motor or a crank. One of the motor or the crank is coaxially connected with one end of the bidirectional lead screw.

[0019] Compared with the prior art, the beneficial effects of the present utility model are:

[0020] 1. By arranging a driving mechanism, a rotating mechanism and a protractor, after angle adjustment, it is possible to judge whether there is an angle error by observing the misalignment angle between the centering scale and the protractor. If there is an angle error, the board can be not cut, thus avoiding the generation of defective products. Brief Description of the Drawings

[0021] Figure 1 is a schematic structural view of the present utility model;

[0022] Figure 2 is a schematic structural view of another perspective of the present utility model;

[0023] Figure 3 of the present utility model Figure 2 partial enlarged view of part A in;

[0024] Figure 4 is a schematic view of the up-and-down sliding structure of the moving clamping plate of the present utility model.

[0025] In the figure: 1, slide rail; 2, end plate; 3, bidirectional lead screw; 4, connecting plate; 5, fixed clamping plate; 6, moving clamping plate; 7, stud; 8, handle; 9, rotating plate; 10, connecting frame; 11, positioning wheel; 12, centering scale; 13, connecting shaft; 14, protractor; 15, electric push cylinder; 16, rotating seat; 17, rotating shaft; 18, slide bar; 19, sleeve bar; 20, vertical groove. Detailed Description of the Preferred Embodiment

[0026] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0027] Please refer to Figures 1 to 4 , in the embodiment of the present utility model, a positioning and clamping mechanism includes a slide rail 1. End plates 2 are connected to both ends of the slide rail 1. A bidirectional lead screw 3 is connected between the two end plates 2. A clamping mechanism slidably connected to the slide rail 1 is provided on the outer wall of the bidirectional lead screw 3. The clamping mechanism is used to clamp plates of different thicknesses;

[0028] A positioning mechanism is rotatably connected to the middle position of the slide rail 1. The positioning mechanism includes a driving unit, a rotating unit and two positioning wheels 11;

[0029] The driving unit is used to drive the rotating unit to rotate. The rotating rotating unit is used to drive the two positioning wheels 11 on the same axis to rotate around the rotation point of the slide rail 1 and the positioning mechanism;

[0030] The two rotated positioning wheels 11 are used to position one side of the plate to be processed.

[0031] In this embodiment: Before clamping the plate, adjust the driving unit according to the shape to be cut. The driving unit drives the rotating unit to rotate, and the rotation of the rotating unit drives the two positioning wheels 11 to rotate until the two positioning wheels 11 rotate to a preset angle;

[0032] Then, fit one end of the plate to the surfaces of the two positioning wheels 11, and the plate can be positioned. Then, use the clamping mechanism to clamp the plate to complete the fixation of the plate.

[0033] Please refer specifically to Figure 1 and Figure 2 , the clamping mechanism includes a connecting plate 4 connected to the outer wall of the bidirectional lead screw 3 through a lead screw seat. One end of the connecting plate 4 is formed with a slider that slides on the inner wall of the slide rail 1;

[0034] The other end of the slide rail 1 is fixedly connected with a fixed clamping plate 5, and the other end of the slide rail 1 is slidably connected with a moving clamping plate 6 up and down. The moving clamping plate 6 is located below the fixed clamping plate 5;

[0035] The top end of the moving clamping plate 6 is rotatably connected with a stud 7 that penetrates above the fixed clamping plate 5. The top end of the stud 7 is fixedly connected with a handle 8. The stud 7 is threadedly connected with the fixed clamping plate 5. One end of one end plate 2 is equipped with one of a motor or a crank. One of the motor or the crank is coaxially connected to one end of the bidirectional lead screw 3.

[0036] In this embodiment: Adjust the distance between the two clamping mechanisms according to the length of the plate. Drive the bidirectional lead screw 3 to rotate through a motor or a crank. Since symmetrical spiral grooves are formed at both ends of the surface of the bidirectional lead screw 3, and the balls inside the two lead screw seats respectively engage with the two spiral grooves, when the bidirectional lead screw 3 rotates, the two lead screw seats approach or move away from each other;

[0037] Until the distance between the two clamping mechanisms can match the length of the plate to be clamped. After the adjustment is completed, place the plate between the fixed clamping plate 5 and the moving clamping plate 6. By rotating the handle 8, the handle 8 drives the stud 7 to rotate. Since the fixed clamping plate 5 remains stationary when the stud 7 rotates, at this time, the stud 7 moves upward during the rotation process, and the stud 7 drives the moving clamping plate 6 to move upward to complete the clamping of the plate.

[0038] Please refer specifically to Figure 2 and Figure 3 , the driving unit includes an electric push cylinder 15 installed at the bottom end of the slide rail 1. The output end of the electric push cylinder 15 is connected with a rotating seat 16. The inside of the rotating seat 16 is rotatably connected with a rotating shaft 17. The top end of the rotating shaft 17 is rotatably connected with a sliding rod 18. The electric push cylinder 15 and the sliding rod 18 are offset in the vertical position;

[0039] A sleeve rod 19 is slidably connected to the outer wall of the sliding rod 18, and a connecting shaft 13 is fixedly connected to the top end of the sleeve rod 19;

[0040] The rotating unit includes two rotating plates 9 fixedly assembled on the outer wall of the connecting shaft 13. The two rotating plates 9 are respectively located above and below the sliding rail 1. A rotating shaft penetrating through the sliding rail 1 is arranged at the central position of the two rotating plates 9, and the rotating shaft is rotatably connected to the sliding rail 1;

[0041] Connecting frames 10 are fixedly installed on the sides of the other ends of the two rotating plates 9 close to each other, and two positioning wheels 11 are rotatably connected between the two connecting frames 10.

[0042] In this embodiment: When adjusting the angle of the positioning wheel 11, by starting the electric push cylinder 15, the electric push cylinder 15 drives the rotating seat 16 to axially move. At this time, the rotating seat 16 drives the rotating shaft 17 to move synchronously. When the rotating shaft 17 moves, it will rotate. The rotating shaft 17 drives one end of the sliding rod 18 to axially move, and the sliding rod 18 drives the rotating plate 9 to rotate around the rotating shaft through the sleeve rod 19 and the connecting shaft 13;

[0043] When one end of the sliding rod 18 axially moves along with the rotating shaft 17, the sliding rod 18 slides along the inner wall of the sleeve rod 19;

[0044] When the rotating plate 9 rotates around the rotating shaft, the other end of the rotating plate 9 drives the two positioning wheels 11 to rotate around the rotating shaft simultaneously through the connecting frame 10 until the angle adjustment of the positioning wheel 11 is completed.

[0045] Please refer specifically to Figure 3 , centered scales 12 are respectively opened at the inner ends of the two rotating plates 9 close to the connecting shaft 13, and a protractor 14 is fixedly installed at the back end of the sliding rail 1.

[0046] In this embodiment: After the angle adjustment of the positioning wheel 11 is completed, by the misalignment angle between the centered scale 12 and the protractor 14, it is judged whether the angle adjustment is incorrect. If the angle of the protractor 14 is inconsistent with the actually required adjustment angle, it can be immediately discovered, avoiding the production of defective products caused by imperfect angle adjustment.

[0047] Please refer specifically to Figure 4 , a vertical groove 20 is vertically opened at one end of the connecting plate 4 close to the moving clamping plate 6, and a sliding block slidably connected to the vertical groove 20 up and down is formed at one end of the moving clamping plate 6 close to the vertical groove 20. The cross sections of the sliding block and the vertical groove 20 are both in a "convex" structure.

[0048] In this embodiment: When the moving clamping plate 6 moves up and down, the moving clamping plate 6 drives the sliding block to move up and down along the vertical groove 20 to adapt to the thickness of different plates.

[0049] The above are only the preferred specific embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and the inventive concept of the present utility model, making equivalent substitutions or changes, shall be covered by the protection scope of the present utility model.

Claims

1. A positioning and clamping mechanism, comprising a slide rail (1), wherein both ends of the slide rail (1) are connected to end plates (2), and a bidirectional screw rod (3) is connected between the two end plates (2), characterized in that: The outer wall of the bidirectional screw rod (3) is provided with a clamping mechanism slidably connected to the slide rail (1), and the clamping mechanism is used to clamp plates of different thicknesses; A positioning mechanism is rotatably connected to the middle position of the slide rail (1), and the positioning mechanism comprises a driving unit, a rotating unit and two positioning wheels (11); The driving unit is used to drive the rotating unit to rotate, and the rotating unit in the rotating state is used to drive the two positioning wheels (11) on the same axial direction to rotate with the slide rail (1) and the rotation point of the positioning mechanism as the center; The two rotating positioning wheels (11) are used to position one side of the processed plate.

2. A positioning and clamping mechanism according to claim 1, characterized in that: The clamping mechanism comprises a connecting plate (4) connected to the outer wall of the bidirectional screw (3) via a screw seat, and one end of the connecting plate (4) is formed with a sliding block that slides with the inner wall of the slide rail (1); The other end of the slide rail (1) is fixedly connected to a fixed clamping plate (5), and the other end of the slide rail (1) is slidably connected to a movable clamping plate (6), and the movable clamping plate (6) is located below the fixed clamping plate (5); The top end of the movable clamping plate (6) is rotatably connected to a stud (7) penetrating to the top of the fixed clamping plate (5), the top end of the stud (7) is fixedly connected to a handle (8), and the stud (7) is threadedly connected to the fixed clamping plate (5).

3. A positioning and clamping mechanism according to claim 1, characterized in that: The driving unit comprises an electric push cylinder (15) mounted on the bottom end of the slide rail (1), the output end of the electric push cylinder (15) is connected to a rotating seat (16), the interior of the rotating seat (16) is rotatably connected to a rotating shaft (17), the top end of the rotating shaft (17) is rotatably connected to a sliding rod (18), and the electric push cylinder (15) and the sliding rod (18) are offset in upper and lower positions; The outer wall of the sliding rod (18) is slidably connected to a sleeve rod (19), and the top end of the sleeve rod (19) is fixedly connected to a connecting shaft (13).

4. A positioning and clamping mechanism according to claim 3, characterized in that: The rotating unit comprises two rotating plates (9) fixedly mounted on the outer wall of the connecting shaft (13), the two rotating plates (9) being respectively located above and below the slide rail (1), and a rotating shaft penetrating the slide rail (1) being arranged at the center of the two rotating plates (9), the rotating shaft being rotatably connected to the slide rail (1); A connecting frame (10) is fixedly mounted on the side surfaces of the other ends of the two rotating plates (9) that are close to each other, and the two positioning wheels (11) are rotatably connected between the two connecting frames (10).

5. A positioning and clamping mechanism according to claim 4, characterized in that: A center scale (12) is provided at one end of the inner side of the two rotating plates (9) close to the connecting shaft (13), and a protractor (14) is fixedly mounted at the back end of the slide rail (1).

6. A positioning and clamping mechanism according to claim 2, characterized in that: A vertical groove (20) is vertically formed at one end of the connecting plate (4) close to the movable clamping plate (6), and a sliding block is formed at one end of the movable clamping plate (6) close to the vertical groove (20) and is slidably connected to the vertical groove (20) up and down, and the cross-sections of the sliding block and the vertical groove (20) are both "convex" structures.

7. A positioning and clamping mechanism according to claim 1, characterized in that: One end of one of the end plates (2) is mounted with a motor or a crank, and the motor or the crank is coaxially connected to one end of the bidirectional screw rod (3).

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