Pneumatic sheet punching machine with laser-assisted positioning function

Abstract

The pneumatic sheet punching machine comprises an air cylinder, a pressing head, a lower pressing plate and an upper pressing plate, a longitudinal positioning assembly and a transverse positioning assembly which are arranged on the two adjacent sides of the lower pressing plate respectively are matched with each other to determine a sample cutting point position, and each positioning assembly comprises an installation support, a laser lamp set and a fixing piece. The laser lamp set is mounted in the middle of the mounting support through a fixing part, longitudinal and transverse light rays emitted by the laser lamp set towards the inner side are used for positioning assistance, sliding guide rails are arranged on the wall faces of the adjacent side walls of the lower pressing plate and slidably connected with sliding grooves in the lower end of the mounting support, and the pressing head is connected with the output end of the air cylinder. And the lower end of the pressure head is matched with a cutter for punching the sample. According to the utility model, longitudinal and transverse light rays formed by irradiation of the two laser lamp groups are adopted, so that the position of a sample and high-precision cutting point position calibration are realized, and the use safety of equipment and the accuracy of sample cutting are greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of punching machine technology, specifically a pneumatic punching machine with laser-assisted positioning. Background Technology

[0002] Pneumatic punching machines are used to punch and cut rubber, plastics, leather, and other special materials into various standard test pieces for testing. They can also be used as small punch presses. Pneumatic punching machines are characterized by flexible operation and quick sample preparation. With a stable air source, they can punch and cut standard specimens of uniform size and precision. Depending on the cutting blade, various standard specimens can be produced, such as strips, dumbbell shapes, and right-angle tear shapes. This has changed the inefficient and inaccurate method of manual punching of test pieces.

[0003] However, in actual use, in order to ensure accurate positioning of the cutting sample, the method of using a hand-held cutting knife for positioning and punching is used, which greatly increases the danger of using the equipment.

[0004] In the field of testing and inspection, many tests (such as tensile tests) require cutting standard longitudinal and transverse specimens. Since pneumatic punching machines do not have precise guiding and positioning measures when punching specimens, the punching position is only positioned by visual inspection and manual adjustment. This often results in punching deviation, uneven cuts, and damage to the specimens. As a result, the machines have to continue cutting specimens on a limited number of samples, which is labor-intensive and wasteful, affecting the accuracy of the test and inspection results. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model discloses a pneumatic punching machine with laser-assisted positioning to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a pneumatic punching machine with laser-assisted positioning, comprising a cylinder, a pressure head, a lower pressure plate, and an upper pressure plate. The lower pressure plate is located at the lower end of the upper pressure plate, and the upper and lower pressure plates are supported and connected by support rods set at the four corners. The cylinder is installed on the upper end of the upper pressure plate, and the pressure head is located at the lower end of the cylinder and connected to the output end of the cylinder. The lower end of the magnetic pressure head cooperates with a cutting blade to punch the sample.

[0007] The lower pressure plate is provided with longitudinal positioning components and transverse positioning components on its adjacent sides. The longitudinal positioning components and transverse positioning components cooperate with each other to determine the cutting point. The positioning components include a mounting bracket, a laser light group and a fixing component. The laser light group is installed in the middle of the mounting bracket through the fixing component. The longitudinal and transverse light emitted by the laser light group towards the inward side provides positioning assistance. The adjacent side walls of the lower pressure plate are provided with sliding guide rails. The lower end of the mounting bracket is provided with a sliding groove near the inner side wall. The sliding groove is slidably connected to the sliding guide rail.

[0008] Preferably, the mounting bracket has vertical sliding holes on both sides of its side walls. The fixing member fixes the laser light group at the middle position and has a first limiting knob on each side. The first limiting knob passes through the sliding hole. The fixing member has a first threaded hole at each end. The inner side of the first limiting knob is connected to the first threaded hole through a threaded structure. By rotating the first limiting knob, it fits against the outer wall of the mounting bracket, thereby adjusting the height of the laser light group.

[0009] Preferably, the inner wall of the sliding hole is provided with a first scale mark, and the front and back walls on both sides of the fixing member are provided with a first scale pointer. The first scale pointer and the first scale mark cooperate with each other to identify the height position of the laser light group.

[0010] Preferably, the lower end of the mounting bracket is provided with a second limiting knob. By tightening the second limiting knob to fit against the outer wall of the sliding guide rail, the position of the mounting bracket can be adjusted.

[0011] Preferably, the lower pressure plate is equipped with the edge of the positioning component, and its upper surface is respectively provided with a second scale mark. The mounting bracket is provided with a second scale pointer. The left and right positions of the laser light group are identified by the cooperation of the second scale pointer and the second scale mark.

[0012] Preferably, the outer wall of the pressure head is provided with a third scale mark, and the position of the cutting blade is adjusted by the third scale mark to make it oriented and centered.

[0013] Preferably, the upper pressure plate is provided with a manual air valve switch and a pneumatic valve group respectively. The cylinder is connected to an external air compressor through a pipeline in sequence with the manual air valve switch and the pneumatic valve group. The manual air valve switch controls the punching stroke of the pressure head at the lower end of the cylinder, thereby realizing the punching of the sample. The upper surface of the lower pressure plate is provided with a pad to cooperate with the pressure head for punching.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model improves the original method of hand-held cutting of specimens to ensure accurate positioning. It adopts laser positioning and a dual-scale adjustment system including horizontal and vertical positions. With the help of the scale around the pressure head and the longitudinal and transverse light formed by the illumination of two sets of laser lamps, the sample position is aligned and the cutting point is calibrated with high precision. This greatly improves the safety of equipment use and the accuracy of cutting. It is applicable to most pneumatic punching machines on the market, has low cost, is easy to add, and has high operability. Attached Figure Description

[0015] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0016] In the attached diagram:

[0017] Figure 1 This is a schematic diagram of the overall structure of the pneumatic punching machine with laser-assisted positioning according to this utility model;

[0018] Figure 2 This is a front view of the pneumatic punching machine with laser-assisted positioning according to this utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the upper and lower pressure plates after assembly.

[0020] Figure 4 This is a schematic diagram of the mounting bracket of this utility model from one perspective;

[0021] Figure 5 This is a structural schematic diagram of the mounting bracket of this utility model from another perspective;

[0022] Figure 6 This is a structural schematic diagram of the fastener of this utility model;

[0023] The following are the labels in the diagram: 1. Cylinder; 2. Pressure head; 201. Third scale mark; 3. Lower pressure plate; 301. Sliding guide rail; 4. Upper pressure plate; 5. Support rod; 601. Mounting bracket; 602. Laser light assembly; 603. Fixing component; 604. Sliding groove; 605. Sliding hole; 606. First limit knob; 607. First threaded hole; 608. Second limit knob; 609. First scale mark; 610. First scale pointer; 611. Second scale mark; 612. Second scale pointer; 7. Manual air valve switch; 8. Pneumatic valve assembly; 9. Pad. Detailed Implementation

[0024] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0025] Example: Figures 1-6 As shown, a pneumatic punching machine with laser-assisted positioning includes a cylinder 1, a pressure head 2, a lower pressure plate 3, an upper pressure plate 4, and support rods 5. The lower pressure plate 3 is located below the upper pressure plate 4, and the upper pressure plate 4 and the lower pressure plate 3 are supported and connected by support rods 5 at four corner positions. The cylinder 1 is mounted on the upper pressure plate 4, and the pressure head 2 is located below the cylinder 1 and connected to the output end of the cylinder 1. The lower end of the magnetic pressure head 2 is equipped with a cutting blade to punch the sample. The pressure head 2 has a periphery... The outer wall is provided with a third scale mark 201. The position of the cutting blade is adjusted by the third scale mark 201 to make it oriented and centered. The upper pressure plate 4 is provided with a manual air valve switch 7 and a pneumatic valve group 8 respectively. The cylinder 1 is connected to an external air compressor through pipes in sequence to the manual air valve switch 7 and the pneumatic valve group 8. The manual air valve switch 7 controls the punching stroke of the pressure head 2 at the lower end of the cylinder 1, thereby realizing the punching of the sample. The upper surface of the lower pressure plate 3 is provided with a pad 9 to cooperate with the pressure head 2 for punching.

[0026] The lower pressure plate 3 is equipped with longitudinal positioning components and transverse positioning components on its adjacent sides. The height and horizontal position of the positioning components can be precisely adjusted by a scale pointer and a limit knob to ensure that the cutting blade is aligned with the sample. The longitudinal and transverse positioning components work together to determine the cutting point. The positioning components include a mounting bracket 601, a laser light group 602, and a fixing member 603. The laser light group 602 is mounted in the middle of the mounting bracket 601 by the fixing member 603. The longitudinal and transverse light beams emitted by the laser light group 602 towards the inward side intersect to mark the cutting point. The mounting bracket 601 has vertical sliding holes 605 on both sides. The fixing member 603 fixes the laser light group 602 at the middle position, and has a first limiting knob 606 on each side. The first limiting knob 606 passes through the sliding hole 605. The fixing member 603 has a first threaded hole 607 at both ends. The inner side of the first limiting knob 606 is connected to the first threaded hole 607 through a threaded structure. By rotating the first limiting knob 606, it fits against the outer wall of the mounting bracket 601, thereby realizing the adjustment of the height of the laser light group 602. A first scale mark 609 is provided on the inner wall of the sliding hole 605, and a first scale pointer 610 is provided on the front and back walls of both sides of the fixing member 603. The first scale pointer 610 is provided on both the inner and outer walls of the fixing member and is used in conjunction with the first scale mark 609 to facilitate observation by the user, thereby enabling the identification of the height position of the laser light group 602. Sliding guide rails 301 are provided on the adjacent side walls of the lower pressure plate 3. A sliding groove 604 is provided at the lower end of the mounting bracket 601 near the inner wall. The sliding groove 604 is slidably connected to the sliding guide rail 301. A second limiting knob 608 is provided at the lower end of the mounting bracket 601. By tightening the second limiting knob 608, it is in contact with the outer wall of the sliding guide rail 301, thereby adjusting the position of the mounting bracket 601. The lower pressure plate 3 has a positioning component installed on its edge, and its upper surface is respectively provided with a second scale mark 611. The mounting bracket 601 is provided with a second scale pointer 612. The second scale pointer 612 and the second scale mark 611 cooperate with each other to identify the left and right positions of the laser light group 602.

[0027] The specific operating steps for punching and cutting specimens include:

[0028] 1) Centering and calibrating the cutting blade:

[0029] First, attach the iron metal cutter to the magnetic pressure head 2. Adjust the angle and position of the cutter according to the third scale mark 201 on the outer wall of the pressure head 2 to ensure that the cutter is centered with the center of the lower pressure plate 3.

[0030] 2) Sample positioning:

[0031] Then, after drawing longitudinal and transverse auxiliary lines on the sample surface, place it on the pad 9, turn on the longitudinal and transverse laser positioning components, irradiate the sample surface with longitudinal and transverse light, and adjust the positioning components, including horizontal positioning, that is, move the mounting bracket 601 along the sliding guide rail 301 of the lower pressure plate 3, align the second scale pointer 612 with the second scale mark 611, determine the transverse and longitudinal positions, and then tighten the second limit knob 608 to fix the mounting bracket 601; and height adjustment, that is, loosen the first limit knob 606, slide the fixing piece 603 to the target height, and according to the first scale pointer 610 and the first scale mark 609 on the sliding hole 605, tighten the first limit knob 606 to lock the position of the laser lamp group 602.

[0032] Next, the sample is aligned longitudinally and laterally using the laser light group 602, and the cutting position of the sample is determined by the intersection of the longitudinal and lateral light rays.

[0033] 3) Perform punching:

[0034] Operate the manual air valve switch 7 to drive the cylinder 1, and the pressure head 2 drives the cutter to press down to complete the punching, and the sample is separated from the pad 9.

[0035] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A laser-aided positioning pneumatic blanker comprising a cylinder, a press head, a lower press plate, and an upper press plate, characterized in that: The lower pressing plate is located at the lower end of the upper pressing plate, and the upper pressing plate and the lower pressing plate are connected by supporting rods arranged at four corners; the air cylinder is installed at the upper end of the upper pressing plate, and the pressing head is located at the lower end of the air cylinder and connected with the output end of the air cylinder; the lower end of the pressing head cooperates with the cutting knife to punch the sample; The lower pressing plate is located at the lower end of the upper pressing plate, and the upper pressing plate and the lower pressing plate are connected by supporting rods arranged at four corners; the air cylinder is installed at the upper end of the upper pressing plate, and the pressing head is located at the lower end of the air cylinder and connected with the output end of the air cylinder; the lower end of the pressing head cooperates with the cutting knife to punch the sample; 2. A pneumatic blanker with laser assisted positioning according to claim 1, characterized in that: The two side walls of the mounting bracket are vertically provided with sliding holes, the middle part of the fixing member is provided with the laser lamp group, and first limiting knobs are arranged on the two sides of the fixing member; the first limiting knobs pass through the sliding holes, and first screw holes are arranged at the two ends of the fixing member; the inside of the first limiting knobs is connected with the first screw holes through a threaded structure, and the first limiting knobs are rotated to be attached to the outer wall of the mounting bracket, so that the height of the laser lamp group is adjusted.

3. A pneumatic blanker with laser assisted positioning according to claim 2, characterized in that: The inside of the sliding hole is provided with a first scale mark, and the front and back walls of the fixing member are provided with first scale pointers; the first scale pointers and the first scale marks are matched with each other, so that the height position of the laser lamp group is identified.

4. A pneumatic blanker with laser assisted positioning according to claim 1, characterized in that: The lower end of the mounting bracket is provided with a second limiting knob, and the second limiting knob is tightened to be attached to the outer wall of the sliding guide, so that the position of the mounting bracket is adjusted.

5. A pneumatic blanker with laser assisted positioning according to claim 1, characterized in that: The edge of the lower pressing plate provided with the positioning assembly is provided with second scale marks on the upper surface, and the mounting bracket is provided with a second scale pointer; the second scale pointer and the second scale marks are matched with each other, so that the left and right positions of the laser lamp group are identified.

6. A pneumatic blanker with laser assisted positioning according to claim 1, characterized in that: The outer wall of the pressing head is provided with a third scale mark, and the position of the cutting knife is adjusted to be oriented in the center.

7. A pneumatic blanker with laser assisted positioning according to claim 1, characterized in that: The upper pressing plate is provided with a manual air valve switch and a pneumatic valve group; the air cylinder is connected with an air compressor outside through a pipeline in sequence with the manual air valve switch and the pneumatic valve group; the punching stroke of the pressing head at the lower end of the air cylinder is controlled through the manual air valve switch, so that the sample is punched; and the upper surface of the lower pressing plate is provided with a pad for punching with the pressing head.

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