Positioning equipment

Abstract

The utility model belongs to the technical field of numerical control press workpiece positioning equipment, and particularly relates to positioning equipment which comprises a workbench. Sliding holes are formed in the two sides of the upper portion of the workbench correspondingly, a containing box is fixedly installed at the bottom of the workbench, a lifting plate is slidably arranged in the containing box, limiting holes are formed in the four corners of the lifting plate correspondingly, vertical plates are fixedly installed on the upper portions of the two ends of the lifting plate correspondingly, and a two-way screw is arranged between the vertical plates. Sliding blocks are arranged at the two ends of the two-way screw, threaded holes are formed in one sides of the lower ends of the sliding blocks, the sliding blocks are installed at the two ends of the two-way screw in a sliding mode, sliding grooves are formed in the upper portions of the sliding blocks, sliding rods are arranged in the sliding grooves, moving plates are installed at one ends of the sliding rods in a sliding mode, and the upper ends of the moving plates are arranged in the sliding holes of the workbench in a sliding mode and penetrate through the sliding holes. A pressing plate is fixedly mounted at the top end of the movable plate; the two sides and the upper portion of the workpiece are fixed through the two-way screw and the lifting plate, and the situation that the workpiece moves during punching, and the punching precision is reduced is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of workpiece positioning equipment for numerical control punching machines, and specifically relates to a positioning device. Background Technique

[0002] A numerical control punching machine, abbreviated as a digital control punching machine, is an automated machine tool equipped with a program control system. The workpiece positioning equipment for a numerical control punching machine is an important part of the numerical control punching machine system. It is responsible for accurately and stably positioning the workpiece to be processed on the punching machine to ensure the accuracy and stability of punching machine processing.

[0003] The workpiece positioning equipment for a numerical control punching machine may include parts such as a clamping device, a positioning sensor, and a control system. The clamping device is responsible for firmly fixing the workpiece on the punching machine. The positioning sensor is used to monitor the position and posture of the workpiece in real time. The control system adjusts the movement trajectory and parameters of the punching machine according to this information to achieve precise processing.

[0004] Existing punching devices usually cannot perform auxiliary positioning on the workpiece body during punching, which makes the punching of the workpiece body by the punching device not precise enough. Therefore, a positioning device is proposed for the above problems. Content of the Utility Model

[0005] In order to make up for the deficiencies of the existing technology, that is, the problem that existing punching devices usually cannot perform auxiliary positioning on the workpiece body during punching, which makes the punching of the workpiece body by the punching device not precise enough, the utility model proposes a positioning device.

[0006] The technical solution adopted by the utility model to solve its technical problems is as follows: A positioning device described in the utility model includes a workbench; a bracket is fixedly installed on one side of the upper part of the workbench, a punching machine is fixedly installed at one end of the upper part of the bracket, sliding holes are opened on both sides of the upper part of the workbench, a placement box is fixedly installed at the bottom of the workbench, a lifting plate is slidably arranged inside the placement box, limiting holes are opened at the four corners of the lifting plate, vertical plates are fixedly installed on the upper parts of both ends of the lifting plate, a bidirectional screw is arranged between the vertical plates, both ends of the bidirectional screw are rotatably installed on the vertical plates through bearings, sliders are arranged at both ends of the bidirectional screw, threaded holes are opened on one side of the lower ends of the sliders, the sliders are slidably installed at both ends of the bidirectional screw, sliding grooves are opened on the upper parts of the sliders, a sliding rod is arranged inside the sliding grooves, both ends of the sliding rod are fixedly installed on the inner walls of the sliding grooves, a moving plate is slidably installed at one end of the sliding rod, the upper end of the moving plate is slidably arranged in the sliding hole of the workbench and penetrates through the sliding hole, and a pressing plate is fixedly installed at the top end of the moving plate. The two sides and the upper part of the workpiece are fixed by the bidirectional screw and the lifting plate to prevent the workpiece from moving during punching and reduce the punching accuracy.

[0007] Preferably, a positioning cylinder is fixedly installed on one side above the workbench and is installed inside the lower end of the bracket. A baffle is fixedly installed at the front end of the piston rod of the positioning cylinder. The baffle is slidably arranged on the upper part of the workbench, and the front end of the workpiece is positioned by pushing the baffle through the positioning cylinder.

[0008] Preferably, a motor is fixedly installed on the outer side of the vertical plate. The front end of the rotating shaft of the motor is fixedly connected to one end of a bidirectional screw through a coupling. The bidirectional screw is rotated by the motor to clamp and fix the workpiece.

[0009] Preferably, a second spring is arranged between the lower end of the moving plate and the inner wall of the other side of the sliding groove and is sleeved on the other end of the sliding rod. The pressure of the moving plate clamping the two sides of the workpiece is buffered by the second spring to prevent damage to the side of the workpiece.

[0010] Preferably, limiting rods are fixedly installed at the four corners inside the placement box. The four corners of the lifting plate are slidably installed on the limiting rods. Four first springs are arranged at the four corners between the bottom of the lifting plate and the inner bottom plate of the placement box and are sleeved on the lower ends of the limiting rods. The pressure caused by excessive clamping of the upper surface of the workpiece by the pressing plate is buffered by the first spring to prevent damage.

[0011] A bidirectional cylinder is fixedly installed at the inner bottom of the placement box. Folding rods are rotatably installed at the front ends of the piston rods of the bidirectional cylinder. The other ends of the folding rods are respectively rotatably installed at the lower parts of the two ends of the lifting plate. The pressing plate is pulled down by the action of the bidirectional cylinder and the folding rods to clamp the upper parts of the two sides of the workpiece to prevent the workpiece from moving during punching.

[0012] The beneficial effects of the present utility model are as follows:

[0013] 1. When using the positioning device in the present utility model, the workpiece is placed on the upper part of the workbench. The positioning cylinder is started, and the positioning cylinder pushes the baffle to move on the workbench. The baffle pushes the workpiece to the center of the workbench. The motor is started to drive the bidirectional screw to rotate. The bidirectional screw drives the slider to move towards the center of the bidirectional screw. At the same time, the slider drives the moving plate to move towards the two sides of the workpiece to clamp the workpiece. At the same time, the bidirectional cylinder is started. The piston rod of the bidirectional cylinder pulls the folding rod to fold. At the same time, the other end of the folding rod pulls the lifting plate to descend in the placement box. During this process, the lower end of the moving plate slides on the sliding rod and compresses the second spring at the same time. The lifting plate slides on the limiting rod and compresses the first spring at the same time until the moving plate and the pressing plate respectively press and fix the two sides and the upper part of the workpiece. The punching machine is started to punch the workpiece. Through this structural design, the function of rapid positioning and clamping is realized, and the problem that the existing punching device usually cannot assist in positioning the workpiece body during punching, which makes the punching of the workpiece body inaccurate, is solved, and the punching accuracy of the workpiece is improved. Brief Description of the Drawings

[0014] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings required for the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can also be obtained based on these drawings.

[0015] Figure 1 It is a schematic top view structure diagram of the rear side of the positioning device;

[0016] Figure 2 It is a schematic top view structure diagram of the front side of the positioning device;

[0017] Figure 3 It is a schematic sectional view structure diagram of the positioning device;

[0018] Figure 4 It is a schematic structure diagram of the moving plate buffer device;

[0019] Figure 5 It is a schematic structure diagram of the lifting plate buffer device.

[0020] In the figure: 1, workbench; 2, bracket; 3, stamping machine; 4, positioning cylinder; 5, baffle; 6, pressing plate; 7, moving plate; 8, placement box; 9, lifting plate; 10, limiting rod; 11, first spring; 12, slider; 13, sliding rod; 14, second spring; 15, vertical plate; 16, motor; 17, bidirectional screw; 18, folding rod; 19, bidirectional cylinder. Specific embodiments

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0022] Please refer to Figures 1-5As shown in the figure, a positioning device includes a workbench 1; on one side of the upper part of the workbench 1, a bracket 2 is fixedly installed, and at one end of the upper part of the bracket 2, a punching machine 3 is fixedly installed. On both sides of the upper part of the workbench 1, sliding holes are opened. At the bottom of the workbench 1, a placement box 8 is fixedly installed. Inside the placement box 8, a lifting plate 9 is slidably arranged. At the four corners of the lifting plate 9, limiting holes are opened. At the upper parts of both ends of the lifting plate 9, vertical plates 15 are fixedly installed. Between the vertical plates 15, a bidirectional screw 17 is arranged. Both ends of the bidirectional screw 17 are rotatably installed on the vertical plates 15 through bearings. At both ends of the bidirectional screw 17, sliders 12 are arranged. At one side of the lower end of each slider 12, a threaded hole is opened. The sliders 12 are slidably installed at both ends of the bidirectional screw 17. At the upper part of each slider 12, a chute is opened, and a sliding rod 13 is arranged in the chute. Both ends of the sliding rod 13 are fixedly installed on the inner wall of the chute. At one end of the sliding rod 13, a moving plate 7 is slidably installed. The upper end of the moving plate 7 is slidably arranged in the sliding hole of the workbench 1 and penetrates through the sliding hole. At the top end of the moving plate 7, a pressing plate 6 is fixedly installed. During operation, when the existing punching device performs punching, it usually cannot assist in positioning the workpiece body, which makes the punching of the workpiece body by the punching device inaccurate. When using the positioning device, place the workpiece on the upper part of the workbench 1, start the positioning cylinder 4, the positioning cylinder 4 pushes the baffle 5 to move on the workbench 1, and the baffle 5 pushes the workpiece to the center of the workbench 1. Start the motor 16 to drive the bidirectional screw 17 to rotate. The bidirectional screw 17 drives the sliders 12 to move towards the center of the bidirectional screw 17. At the same time, the sliders 12 drive the moving plate 7 to move towards both sides of the workpiece to clamp the workpiece. At the same time, start the bidirectional cylinder 19. The piston rod of the bidirectional cylinder 19 pulls the folding rod 18 to fold. At the same time, the other end of the folding rod 18 pulls the lifting plate 9 to descend in the placement box 8. During this process, the lower end of the moving plate 7 slides on the sliding rod 13 and compresses the second spring 14 at the same time. The lifting plate 9 slides on the limiting rod 10 and compresses the first spring 11 at the same time until the moving plate 7 and the pressing plate 6 respectively press and fix both sides and the upper part of the workpiece. Then start the punching machine 3 to punch the workpiece.

[0023] On one side above the workbench 1, a positioning cylinder 4 is fixedly installed on the inner side of the lower end of the bracket 2. At the front end of the piston rod of the positioning cylinder 4, a baffle 5 is fixedly installed. The baffle 5 is slidably arranged on the upper part of the workbench 1. During operation, when using the positioning device, place the workpiece on the workbench 1, start the positioning cylinder 4 to push the baffle 5, and the baffle 5 pushes one side of the workpiece to push the workpiece to the center of the upper part of the workbench 1.

[0024] On the outer side of the vertical plate 15, a motor 16 is fixedly installed. The front end of the rotating shaft of the motor 16 is fixedly connected to one end of the bidirectional screw 17 through a coupling. During operation, when using the positioning device, start the motor 16. The rotating shaft of the motor 16 drives the bidirectional screw 17 to rotate through the coupling. The bidirectional screw 17 drives the moving plate 7 to position and fix both sides of the workpiece through the sliders 12.

[0025] A second spring 14 is sleeved on the other end of the sliding rod 13 between the lower end of the moving plate 7 and the inner wall of the other side of the sliding groove; during operation, when using the positioning device, the slider 12 drives the moving plate 7 to slide, the upper end of the moving plate 7 slides in the sliding hole on the workbench 1, the inner side of the moving plate 7 contacts both sides of the workpiece, and the slider 12 continues to move. At this time, the lower end of the moving plate 7 slides in the sliding groove of the slider 12 under the action of the sliding rod 13, and at the same time compresses the second spring 14 until the moving plate 7 fixes both sides of the workpiece.

[0026] Four corners inside the placement box 8 are fixedly installed with limit rods 10, and four corners of the lifting plate 9 are slidably installed on the limit rods 10. Four corners between the bottom of the lifting plate 9 and the inner bottom plate of the placement box 8 are provided with first springs 11 sleeved on the lower ends of the limit rods 10; during operation, when using the positioning device, when the moving plate 7 positions both sides of the workpiece, the lifting plate 9 is driven to slide downward in the placement box 8 under the action of the limit rods 10. When the lifting plate 9 slides, the first springs 11 are compressed, and the first springs 11 decelerate the descending speed of the lifting plate 9 to prevent the pressing plate 6 from descending too fast and damaging the upper edges of both sides of the workpiece.

[0027] A double-acting cylinder 19 is fixedly installed at the inner bottom of the placement box 8. The front ends of the piston rods of the double-acting cylinder 19 are rotatably installed with folding rods 18, and the other ends of the folding rods 18 are respectively rotatably installed at the lower parts of both ends of the lifting plate 9; during operation, when using the positioning device, the double-acting cylinder 19 is started, the piston rods at both ends of the double-acting cylinder 19 contract, pulling the lower ends of the folding rods 18 to move towards each other, and at the same time the other ends of the folding rods 18 pull the lifting plate 9 to slide downward in the placement box 8.

[0028] Working principle: When using the positioning device, the workpiece is placed on the upper part of the workbench 1. The positioning cylinder 4 is started, and the positioning cylinder 4 pushes the baffle 5 to move on the workbench 1. The baffle 5 pushes the workpiece to the center of the workbench 1. The motor 16 is started to drive the double-threaded screw 17 to rotate. The double-threaded screw 17 drives the slider 12 to move towards the center of the double-threaded screw 17. At the same time, the slider 12 drives the moving plate 7 to move towards both sides of the workpiece to clamp the workpiece. At the same time, the double-acting cylinder 19 is started, and the piston rod of the double-acting cylinder 19 pulls the folding rod 18 to fold. At the same time, the other end of the folding rod 18 pulls the lifting plate 9 to descend in the placement box 8. During this process, the lower end of the moving plate 7 slides on the sliding rod 13 and compresses the second spring 14 at the same time. The lifting plate 9 slides on the limit rod 10 and compresses the first spring 11 at the same time until the moving plate 7 and the pressing plate 6 respectively press and fix both sides and the upper part of the workpiece, and then the punching machine 3 is started to punch the workpiece.

[0029] In the description of this specification, the descriptions referring to terms such as "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples.

[0030] The above has shown and described the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments, and the above embodiments and the descriptions in the specification only illustrate the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed.

Claims

1. A positioning device, characterized in that: The invention comprises a workbench (1); a bracket (2) is fixedly installed on one side of the upper part of the workbench (1); a punching machine (3) is fixedly installed on one end of the upper part of the bracket (2); sliding holes are provided on both sides of the upper part of the workbench (1); a placement box (8) is fixedly installed on the bottom of the workbench (1); a lifting plate (9) is slidably provided inside the placement box (8); limiting holes are provided at the four corners of the lifting plate (9); vertical plates (15) are fixedly installed on the upper parts of both ends of the lifting plate (9); a bidirectional screw (17) is provided between the vertical plates (15); and both ends of the bidirectional screw (17) are rotatably mounted via bearings. Mounted on the vertical plate (15), both ends of the bidirectional screw (17) are provided with sliders (12), and one side of the lower end of the slider (12) is provided with a threaded hole. The slider (12) is slidably mounted on the two ends of the bidirectional screw (17), and a slide groove is opened on the upper part of the slider (12), and a slide rod (13) is arranged in the slide groove. Both ends of the slide rod (13) are fixedly mounted on the inner wall of the slide groove. A movable plate (7) is slidably mounted on one end of the slide rod (13), and the upper end of the movable plate (7) is slidably arranged in the slide hole of the workbench (1) and passes through the slide hole. A pressure plate (6) is fixedly mounted on the top of the movable plate (7).

2. A positioning device according to claim 1, characterized in that: A positioning cylinder (4) is provided on one side above the workbench (1) and is fixedly mounted on the inner side of the lower end of the bracket (2); a baffle (5) is fixedly mounted on the front end of the piston rod of the positioning cylinder (4); and the baffle (5) is slidably mounted on the upper part of the workbench (1).

3. A positioning device according to claim 1, characterized in that: A motor (16) is fixedly mounted on the outer side of the vertical plate (15), and the front end of the rotating shaft of the motor (16) is fixedly connected to one end of the bidirectional screw (17) via a coupling.

4. A positioning device according to claim 1, characterized in that: A second spring (14) is provided between the lower end of the movable plate (7) and the inner wall of the other side of the slide groove and is sleeved on the other end of the slide rod (13).

5. A positioning device according to claim 1, characterized in that: The four corners of the storage box (8) are fixedly installed with limit rods (10), and the four corners of the lifting plate (9) are slidably installed on the limit rods (10). A spring (11) is provided at each of the four corners between the bottom of the lifting plate (9) and the bottom plate of the storage box (8) and is sleeved on the lower end of the limit rod (10).

6. A positioning device according to claim 1, characterized in that: A bidirectional cylinder (19) is fixedly installed at the bottom of the placement box (8), and a folding rod (18) is rotatably installed at the front end of the piston rod of the bidirectional cylinder (19), and the other end of the folding rod (18) is rotatably installed at the lower part of the two ends of the lifting plate (9).

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