Part punching device of laser cutting equipment

Abstract

The utility model discloses a part punching device of laser cutting equipment, and belongs to the field of laser cutting. The punching device comprises a workbench, a laser generator is arranged above the workbench, a discharging groove is formed in the upper end of the workbench, the two opposite sides of the discharging groove are each provided with a mounting frame, the two mounting frames can be synchronously reversed, mounting plates are fixed to the upper ends of the two mounting frames, and limiting bosses are arranged on the two mounting plates. A sliding frame capable of conducting position adjustment in the direction perpendicular to the sliding direction of the mounting frame is arranged at the upper end of the workbench, and a limiting baffle is arranged on the sliding frame to make contact with one side edge of a part for limiting. Pressing plate assemblies are arranged at the upper ends of the two mounting plates, each pressing plate assembly comprises a fixing frame fixed to the upper end of the corresponding mounting plate, an air cylinder is fixed to the fixing frame, and a first pressing plate is fixed to the tail end of a driving shaft of the air cylinder and used for pressing and fixing a positioned part, so that the phenomenon that in the laser drilling process, the part is damaged is avoided; and the shape and position quality problems of insufficient punching roundness and the like caused by displacement of the part are solved.

Description

Technical Field

[0001] The utility model belongs to the field of laser cutting, and particularly relates to a hole punching device for parts of a laser cutting device. Background Technique

[0002] Laser cutting uses a laser beam with a high energy density to heat the workpiece, causing the temperature to rise rapidly and reach the boiling point of the material in a very short time. The material begins to vaporize and form vapor. The ejection speed of these vapors is very high, and while the vapors are ejected, a cut is formed on the material. With the continuous development of the mechanical processing field, more and more industries and enterprises use laser cutting.

[0003] For punching of sheet metal parts, due to the small thickness of sheet metal parts, drilling with a drill bit easily causes the area around the hole to sink and deform under force; for this reason, laser cutting devices are mostly used in the prior art to perform punching operations on sheet metal parts;

[0004] When using a laser cutting device to punch holes in a sheet metal part, in order to ensure the accuracy of the punching position and the roundness of the hole, it is necessary to ensure that the sheet metal part is positioned and fixed before punching. For this reason, a hole punching device for parts of a laser cutting device is proposed. Content of the Utility Model

[0005] Aiming at the deficiencies of the prior art, the purpose of the utility model is to provide a hole punching device for parts of a laser cutting device, which solves the problems in the prior art.

[0006] The purpose of the utility model can be realized by the following technical solutions:

[0007] A hole punching device for parts of a laser cutting device includes a workbench. Above the workbench, a laser generator is arranged. A discharge chute is opened at the upper end of the workbench. On the opposite sides of the discharge chute, an installation frame is respectively arranged. The two installation frames can move synchronously and reversely, and an installation plate is fixed at the upper end. Limiting bosses are arranged on both installation plates; A sliding frame capable of adjusting its position along a direction perpendicular to the sliding direction of the installation frame is arranged at the upper end of the workbench. A limiting baffle is arranged on the sliding frame to contact and limit one side edge of the part;

[0008] Pressing plate assemblies are arranged on the upper ends of both installation plates. The pressing plate assembly includes a fixing frame fixed at the upper end of the installation plate. A cylinder is fixed on the fixing frame. The end of the driving shaft of the cylinder is fixed with a first pressing plate to press and fix the positioned part, preventing the part from shifting during the laser hole punching process and causing form and position quality problems such as insufficient roundness of the punched hole.

[0009] Furthermore, both of the mounting brackets are slidably connected to the workbench. Two first fixing plates are arranged at the lower end of the workbench. A first lead screw is rotatably connected between the two first fixing plates. First external threads and second external threads with opposite helix directions and equal pitches are respectively arranged at both ends of the first lead screw. The first external thread and the second external thread respectively penetrate through the two mounting brackets and are threadedly connected thereto, and the helix angles of the first external thread and the second external thread are both smaller than the equivalent friction angle.

[0010] Furthermore, an angle steel is fixed in the discharge chute, and the angle steel can completely cover the first lead screw.

[0011] Furthermore, the sliding frame is slidably connected to the workbench, and the sliding direction is perpendicular to the sliding direction of the mounting bracket. Two second fixing plates are arranged at the upper end of the workbench. A second lead screw is rotatably connected between the two second fixing plates. The second lead screw penetrates through the sliding frame and is threadedly connected thereto, and the helix angle of the second lead screw is smaller than the equivalent friction angle.

[0012] Furthermore, a support frame is arranged below the workbench. A storage box is arranged at the upper end of the support frame. A slider is arranged at the lower end of the storage box. A T-shaped chute is formed on the support frame. The slider is matched with the T-shaped chute, and the storage box can slide to the position directly below the discharge chute to store the tailings.

[0013] Furthermore, a pressing assembly is arranged on the workbench. The pressing assembly includes a second pressing plate capable of lifting. When the storage box reaches the position directly below the discharge chute, the second pressing plate descends to act on the side of the storage box and can press it against the support frame.

[0014] Furthermore, two guide rods are arranged at the upper end of the second pressing plate. The guide rods penetrate through the workbench along the vertical direction and are slidably connected thereto. An adjusting rod is threadedly connected to the workbench. The end of the adjusting rod is rotatably connected to the second pressing plate.

[0015] Furthermore, the helix angle of the external thread on the adjusting rod is smaller than the equivalent friction angle.

[0016] Advantages of the utility model:

[0017] 1. By arranging a positioning assembly on the workbench, arranging two mounting brackets that slide synchronously and in opposite directions in the positioning assembly, arranging mounting plates on the mounting brackets to limit the parts, and arranging a limiting baffle that can slide and adjust along a direction perpendicular to the sliding direction of the mounting brackets in the limiting assembly, and cooperating with the limiting effects of the two mounting plates, the positioning of the parts is realized, ensuring that the area to be processed of the parts corresponds to the discharge chute, which is convenient for blanking and recycling.

[0018] 2. By arranging a pressing plate assembly on the mounting plate to press and fix the positioned parts, it is possible to prevent the parts from shifting during the laser drilling process, resulting in form and position quality problems such as insufficient roundness of the drilled holes.

[0019] 3. By fixing angle steel in the discharge chute to block the first lead screw, it is possible to prevent some of the tailing debris from entering and staying in the spiral groove of the first lead screw, thus affecting the normal transmission of the first lead screw. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, for those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0021] Figure 1 is a schematic diagram of the overall structure of the punching device of the present invention;

[0022] Figure 2 is a schematic diagram of the structure of the workbench of the present invention;

[0023] Figure 3 is a schematic diagram of the structure of the positioning component of the present invention;

[0024] Figure 4 is a schematic diagram of the angle steel structure of the present invention;

[0025] Figure 5 is a schematic diagram of the structure of the limiting component of the present invention;

[0026] Figure 6 is a schematic diagram of the structure of the pressing plate component of the present invention;

[0027] Figure 7 is a schematic diagram of the structure of the storage box of the present invention;

[0028] Figure 8 is a schematic diagram of the structure of the fixing component of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the 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.

[0030] Such as Figure 1 and Figure 2As shown in the figure, a part punching device for a laser cutting device includes a workbench 1. A discharge chute 11 is provided at the upper end of the workbench 1. A laser generator 5 is arranged above the workbench 1. The laser generator 5 emits laser to punch holes in parts (square sheet metal parts), and the tailings generated by the punching are discharged from the discharge chute 11 out of the workbench 1.

[0031] A positioning component 4 is arranged at the upper end of the workbench 1, as Figure 3 shown. The positioning component 4 includes two mounting frames 21 that can slide synchronously and in opposite directions. The two mounting frames 21 are respectively located on the opposite sides of the discharge chute 11. A mounting plate 22 is fixed to the upper end of each of the two mounting frames 21. A limiting boss 221 is arranged on the mounting plate 22. When the two mounting plates 22 approach synchronously, the parts can be centered and limited, so as to facilitate ensuring that the machining area of the parts corresponds to the discharge chute 11 in the subsequent process and facilitate the falling and recycling of materials.

[0032] In this embodiment, both of the two mounting frames 21 are slidably connected to the workbench 1. Two first fixing plates 13 are arranged at the lower end of the workbench 1. A first lead screw 23 is rotatably connected between the two first fixing plates 13. First external threads 231 and second external threads 232 with opposite helix directions and equal pitches are respectively arranged at the two ends of the first lead screw 23. The first external threads 231 and the second external threads 232 respectively penetrate through the two mounting frames 21 and are threadedly connected thereto. By rotating the first lead screw 23, the two mounting frames 21 can be made to slide synchronously and in opposite directions, so as to limit parts of different sizes. Moreover, the first lead screw 23 has self-locking property, that is, the helix angles of the first external threads 231 and the second external threads 232 are both smaller than the equivalent friction angle, so as to ensure that the relative distance between the two mounting plates 22 remains stable after adjustment.

[0033] Of course, the method of driving the two mounting frames 21 to slide synchronously and in opposite directions includes but is not limited to the first lead screw 23 in this embodiment. In some embodiments, two telescopic rods can also be provided to respectively drive the two mounting frames 21 to slide synchronously and in opposite directions.

[0034] A limiting component 3 is arranged at the upper end of the workbench 1. The limiting component 3 and the positioning component 2 cooperate with each other to limit the parts from two mutually perpendicular directions, so as to achieve the purpose of positioning the parts, ensure high consistency of the installation positions during each punching operation of the same components, and be applicable to the punching operation of batch parts.

[0035] As Figure 5As shown in the figure, the limiting component 3 includes a sliding frame 31 that can slide and adjust on the upper end of the workbench 1. A limiting baffle 32 is fixed to the upper end of the sliding frame 31, and the sliding direction of the sliding frame 31 is perpendicular to the sliding direction of the mounting frame 21. After the position of the limiting baffle 32 is adjusted, one side of the part is in contact with the limiting baffle 32 for limiting. With the limiting effect of the two mounting plates 22, the positioning of the part is realized to ensure that the area to be processed of the part corresponds to the discharge chute 11;

[0036] In this embodiment, the sliding frame 31 is slidably connected to the workbench 1, and the sliding direction is perpendicular to the sliding direction of the mounting frame 21. Two second fixing plates 14 are provided on the upper end of the workbench 1. A second lead screw 33 is rotatably connected between the two second fixing plates 14. The second lead screw 33 passes through the sliding frame 31 and is threadedly connected thereto. By rotating the second lead screw 33, the horizontal position adjustment of the sliding frame 31 and the limiting baffle 32 can be realized; moreover, in order to ensure the stability of the sliding frame 31 after the position adjustment, the second lead screw 33 also needs to have self-locking property, that is, the thread lead angle of the second lead screw 33 is less than the equivalent friction angle.

[0037] Of course, the method of driving the sliding adjustment of the sliding frame 31 includes but is not limited to the second lead screw 33 in this embodiment. In some embodiments, the sliding frame 31 can also be directly driven to slide by setting a linear driving component such as a telescopic rod on the upper end of the workbench 1.

[0038] It is worth mentioning that during the drilling process, the tail stock falls from the discharge chute 11 and will hit the first lead screw 23. In particular, some tail stock debris may stay in the spiral groove of the first lead screw 23, thus affecting the normal transmission of the first lead screw 23; for this reason, in this embodiment, an angle steel 12 is fixed in the discharge chute 11 (as Figure 4 shown), and the angle steel 12 can completely cover the first lead screw 23. The tail stock will slide along the inclined plane when it falls on the angle steel 12 and will not fall onto the first lead screw 23, achieving the purpose of protection.

[0039] One pressing plate assembly 4 is respectively arranged at the upper ends of the two mounting plates 22. The two pressing plate assemblies 4 can press the positioned part against the mounting plate 22 to realize fixation and prevent the part from shifting during the laser drilling process, resulting in form and position quality problems such as insufficient roundness of the drilled hole;

[0040] As Figure 6 shown, the pressing plate assembly 4 includes a fixing frame 41 fixed to the upper end of the mounting plate 22. A cylinder 42 is fixed to the upper end of the fixing frame 41. The end of the driving shaft of the cylinder 42 is fixed with a first pressing plate 43. Under the action of the cylinder 42, the first pressing plate 43 can act on the part and press it against the mounting plate 22 to realize the fixation of the part.

[0041] A support frame 15 is provided below the workbench 1, and a storage box 6 is provided at the upper end of the support frame 15. As Figure 7 shown, a slider 61 is provided at the lower end of the storage box 6, and a T-shaped sliding groove 16 is formed on the support frame 15. The slider 61 is matched with the T-shaped sliding groove 16, and the storage box 6 can slide to directly below the discharge chute 11 to store the tailings. After the tailings are completely stored, the storage box 6 is pulled out of the support frame 15 along the T-shaped sliding groove 16, which can facilitate the centralized unloading and recycling of the tailings inside the storage box 6;

[0042] In this embodiment, a pressing assembly 7 is provided on the workbench 1. The pressing assembly 7 can fix the storage box 6 at a position directly below the discharge chute 11 to ensure that during the drilling process, the tailings can completely fall into the storage box 6;

[0043] As Figure 8 shown, the pressing assembly 7 includes a second pressing plate 71 that can be lifted and lowered. When the storage box 6 reaches directly below the discharge chute 11, the second pressing plate 71 descends and can act on the side of the storage box 6 and press it against the support frame 15;

[0044] In this embodiment, two guide rods 72 are provided at the upper end of the second pressing plate 71. The guide rods 72 penetrate the workbench 1 along the vertical direction and are slidably connected thereto. An adjusting rod 73 is provided on the workbench 1. The adjusting rod 73 penetrates the workbench 1 along the vertical direction and is threadedly connected thereto, and the end of the adjusting rod 73 is rotatably connected to the second pressing plate 71. By rotating the adjusting rod 73, the lifting and lowering of the second pressing plate 71 can be controlled. And to ensure the stability of the second pressing plate 71 pressing the storage box 6, the adjusting rod 73 needs to have self-locking, that is, the thread lead angle of the external thread on the adjusting rod 73 is less than the equivalent friction angle.

[0045] In some embodiments, the lifting and lowering of the pressing plate 71 can also be driven by providing a cylinder on the upper end of the workbench 1.

[0046] Working principle:

[0047] By setting a positioning component 2 on the workbench 1, arranging two mounting brackets 21 that slide synchronously and in opposite directions in the positioning component 2, setting a mounting plate 22 on the mounting bracket 21 to limit the parts, and arranging a limiting baffle 32 that can slide and adjust along a direction perpendicular to the sliding direction of the mounting bracket 21 in the limiting component 3, and cooperating with the limiting effect of the two mounting plates 22, the positioning of the parts is achieved; finally, a pressing plate component 4 is arranged on the mounting plate 22 to press and fix the positioned parts, ensuring that the machining area of the parts corresponds to the discharge chute 11, facilitating blanking and recycling, and at the same time preventing the parts from shifting during the laser drilling process, resulting in form and position quality problems such as insufficient roundness of the drilled holes. By fixing an angle steel 12 in the discharge chute 11 to block the first lead screw 23, it is avoided that some tailing debris enters and stays in the spiral groove of the first lead screw 23, affecting the normal transmission of the first lead screw 23.

[0048] 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 invention. 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 can be combined in a suitable manner in any one or more embodiments or examples.

[0049] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments, and the above embodiments and the descriptions in the specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed.

Claims

1. A part punching device for a laser cutting equipment, comprising a workbench (1), and a laser generator (5) is arranged above the workbench (1), characterized in that, At the upper end of the workbench (1), a discharge chute (11) is provided. On the opposite sides of the discharge chute (11), an installation bracket (21) is respectively arranged. The two installation brackets (21) can move synchronously and in opposite directions, and an installation plate (22) is fixed at the upper end. On both installation plates (22), a limiting boss (221) is arranged. At the upper end of the workbench (1), a sliding bracket (31) is provided which can adjust its position along the direction perpendicular to the sliding direction of the installation bracket (21). On the sliding bracket (31), a limiting baffle (32) is arranged to contact and limit one side of the part. On the upper ends of the two installation plates (22), a pressing plate assembly (4) is respectively arranged. The pressing plate assembly (4) includes a fixing bracket (41) fixed at the upper end of the installation plate (22). On the fixing bracket (41), a cylinder (42) is fixed. At the end of the driving shaft of the cylinder (42), a first pressing plate (43) is fixed.

2. The part punching device of a laser cutting device according to claim 1, characterized in that, The two installation brackets (21) are both slidably connected to the workbench (1). At the lower end of the workbench (1), two first fixing plates (13) are provided. Between the two first fixing plates (13), a first lead screw (23) is rotatably connected. At both ends of the first lead screw (23), a first external thread (231) and a second external thread (232) with opposite helix directions and equal pitches are respectively arranged. The first external thread (231) and the second external thread (232) respectively penetrate through the two installation brackets (21) and are threadedly connected thereto, and the helix angles of the first external thread (231) and the second external thread (232) are both smaller than the equivalent friction angle.

3. The part punching device of a laser cutting device according to claim 2, characterized in that, An angle steel (12) is fixed in the discharge chute (11), and the angle steel (12) can completely cover the first lead screw (23).

4. The part punching device of a laser cutting device according to claim 1, characterized in that The sliding bracket (31) is slidably connected to the workbench (1), and the sliding direction is perpendicular to the sliding direction of the installation bracket (21). At the upper end of the workbench (1), two second fixing plates (14) are provided. Between the two second fixing plates (14), a second lead screw (33) is rotatably connected. The second lead screw (33) penetrates through the sliding bracket (31) and is threadedly connected thereto, and the helix angle of the second lead screw (33) is smaller than the equivalent friction angle.

5. The part punching device of a laser cutting device according to claim 1, characterized in that A support frame (15) is arranged below the workbench (1). At the upper end of the support frame (15), a storage box (6) is provided. At the lower end of the storage box (6), a slider (61) is provided. On the support frame (15), a T-shaped chute (16) is provided. The slider (61) is matched with the T-shaped chute (16), and the storage box (6) can slide to the directly below the discharge chute (11) to store the tailings.

6. The part punching device of a laser cutting device according to claim 5, characterized in that, A pressing component (7) is arranged on the workbench (1). The pressing component (7) includes a second pressing plate (71) that can move up and down. When the storage box (6) reaches the directly below the discharge chute (11), the second pressing plate (71) descends and can act on the side of the storage box (6) and press it against the support frame (15).

7. The part punching device of a laser cutting device according to claim 6, characterized in that, At the upper end of the second pressing plate (71), two guide rods (72) are provided. The guide rods (72) penetrate through the workbench (1) along the vertical direction and are slidably connected thereto. An adjusting rod (73) is threadedly connected to the workbench (1), and the end of the adjusting rod (73) is rotatably connected to the second pressing plate (71).

8. The part punching device of a laser cutting device according to claim 7, characterized in that, The helix angle of the external thread on the adjusting rod (73) is less than the equivalent friction angle.

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