A laser cutting machine for sheet metal parts and a production method for sheet metal parts

Abstract

The present application relates to a laser cutting machine for sheet metal parts and a production method for sheet metal parts, which includes a base, an XYZ moving platform, and a laser head. Two side plates are fixedly installed on the top side of the base. The two side plates are arranged oppositely. Between one sides of the two side plates and also between the other sides of the two side plates, baffle plates are fixedly installed. The XYZ moving platform is fixedly installed on the top sides of the two side plates, and the laser head is installed on the XYZ moving platform. A plurality of support plates are arranged between the two side plates. The top side of the support plate is serrated. First sliders are fixedly installed on both sides of the support plate facing the side plates. First sliding grooves for the first sliders to slide are formed on the mutually facing surfaces of the two side plates. The first sliding grooves are arranged along the length direction of the side plates. The present application has the effect of reducing the occurrence of bending when the sheet is placed above the support plate.

Description

Technical Field

[0001] This application relates to the field of sheet metal part production, and in particular to a laser cutting machine for sheet metal parts and a sheet metal part production method. Background Art

[0002] After receiving a demand order for sheet metal parts, the manufacturer of sheet metal parts calculates the required sheet materials according to the quantity and shape of the sheet metal parts to be produced in the demand order. Then the sheet materials are transported to a cutting machine for cutting to form sheet metal parts, and then the sheet metal parts are polished and stored in a warehouse.

[0003] The cutting machine used for sheet metal parts is generally a laser cutting machine. The laser cutting machine includes a base, an XYZ moving platform, and a laser head. Two side plates are fixedly installed on the top surface of the base, and the two side plates are arranged oppositely. Baffles are fixedly installed between one side and the other side of the two side plates. A plurality of support plates are fixedly installed between the two side plates, and the support plates are arranged at intervals along the length direction of the side plates. The top side of the support plate is serrated. The XYZ moving platform is fixedly installed on the top sides of the two side plates, and the laser head is installed on the XYZ moving platform. The sheet material is placed above the support plate, and the support plate supports the sheet material. Then the XYZ moving platform is started to drive the laser head to move, and the laser head emits laser and ejects gas to cut the sheet material to form sheet metal parts.

[0004] Regarding the above related technology, when the sheet material is placed on the support plate, the support plate is installed between the two side plates, so that the two sides of the sheet material facing the side plates have good support. However, the two sides of the sheet material facing the baffle may be located between two support plates, so that the two sides of the sheet material facing the baffle lack support and bend. Summary of the Invention

[0005] In order to reduce the occurrence of bending when the sheet material is placed above the support plate, this application provides a laser cutting machine for sheet metal parts and a sheet metal part production method.

[0006] A laser cutting machine for sheet metal parts and a sheet metal part production method provided by this application adopt the following technical solutions:

[0007] A laser cutting machine for sheet metal parts includes a base, an XYZ moving platform, and a laser head. Two side plates are fixedly installed on the top side of the base, the two side plates are arranged oppositely, baffles are fixedly installed between one side of the two side plates and between the other side of the two side plates, the XYZ moving platform is fixedly installed on the top sides of the two side plates, the laser head is installed on the XYZ moving platform, a plurality of support plates are arranged between the two side plates, the top side of the support plate is serrated, first sliders are fixedly installed on both sides of the support plate facing the side plates, and first sliding grooves for the first sliders to slide are formed on the mutually facing surfaces of the two side plates, and the first sliding grooves are arranged along the length direction of the side plates.

[0008] By adopting the above technical solution, the first slider cooperates with the first chute, thereby facilitating the movement of the support plate. Place the plate on the support plate and move the support plate to change the distance between two adjacent support plates, so that both sides of the plate facing the baffle are supported by the support plates, thereby reducing the bending of the plate when it is placed above the support plate. Then start the XYZ moving platform and the laser head to cut the plate to form a sheet metal part. After the plate is cut into a sheet metal part, it is taken out from the laser cutting machine, and then another plate is placed above the support plate. According to the position of the support plate adjusted after the first plate is cut, it is convenient to align another plate when it is placed on the support plate.

[0009] Optionally, each of the first sliders is provided with a transmission rod, a slide rod, a round block and a first rotating rod. One end of the first rotating rod is coaxially and fixedly connected to one side of the round block. The first rotating rod rotatably penetrates the bottom of the first chute. An elliptical groove is formed on the side of the round block away from the first rotating rod. One end of the slide rod is slidably inserted into the elliptical groove. The other end of the slide rod is fixedly connected to one end of the transmission rod. The other end of the transmission rod is hinged to the first slider.

[0010] By adopting the above technical solution, when it is necessary to move the support plate, rotate the first rotating rod, and the first rotating rod drives the round block to rotate. When the round block rotates, it is clamped with the slide rod through the elliptical groove, thereby driving the slider to approach or move away from the first slider. The slide rod drives the first slider to move inside the first chute through the transmission rod. The slider slides inside the first chute, thereby facilitating the movement of the support plate to change the distance between two adjacent support plates.

[0011] Optionally, each of the first rotating rods is provided with a first gear. The first gear is fixedly sleeved on the part of the first rotating rod located outside the first chute. A first shielding cover is fixedly installed on the side of each of the two side plates away from the support plate. One end of the first rotating rod away from the round block is rotatably inserted into the inner wall of the first shielding cover away from the side plate. The first gear is located inside the first shielding cover. A driving strip is arranged inside the first shielding cover. The first gear meshes with the driving strip. The diameters of the first gears located inside the same first shielding cover decrease in sequence along the length direction of the driving strip. A first motor is fixedly installed on the side of the first shielding cover away from the side plate. The rotating shaft of the first motor is fixedly connected to one end of a first rotating rod away from the round block.

[0012] By adopting the above technical solution, when it is necessary to adjust the distance between two adjacent support plates, the first motor is driven, and the first motor drives a gear to rotate through the first rotating rod, and then the gear is meshed with the driving bar, so that each gear rotates together, thereby facilitating driving each first rotating rod to rotate. Each first rotating rod rotates together, so that each support plate moves together. Because the diameter of the first gear inside the first shielding cover decreases successively along the length direction of the driving bar, the rotation angle of the first rotating rod gradually increases as the diameter of the first gear decreases. By having different rotation angles of each first rotating rod, the distance moved by each support plate is different, thereby facilitating adjusting the distance between adjacent support plates when each support plate moves together.

[0013] Optionally, the inner wall of the first shielding cover away from the side plate and the inner top wall of the first shielding cover are both in contact with the driving bar, and the driving bar is in contact with a surface of the side plate close to the first shielding cover.

[0014] By adopting the above technical solution, the first shielding cover and the side plate support the driving bar, thereby reducing the possibility of the driving bar falling off the gear.

[0015] Optionally, second sliders are fixedly installed on both sides of the support plate close to the side plates, and second slide grooves for sliding the second sliders are opened on the sides of the two side plates facing each other, and a pressure plate and a cam are arranged inside the second slide groove, and the pressure plate is located above the second slider, and the cam is located above the pressure plate, and a second rotating rod is fixedly installed on the cam, and the second rotating rod rotates through the bottom of the second slide groove, and the second rotating rod is used to drive the cam to rotate and press against the pressure plate.

[0016] By adopting the above technical solution, after adjusting the distance between two adjacent support plates, the second rotating rod is rotated, and the second rotating rod drives the cam to rotate and tightly abut against the pressure plate. The pressure plate presses the second slider tightly inside the second slide groove, thereby reducing the shaking and sliding of the plate when it is placed on the support plate.

[0017] Optionally, a conveying chain is provided on the sides of the two side plates facing away from each other, a second gear is installed on the end of the second rotating rod away from the cam, and the conveying chain is meshed with the second gear.

[0018] By adopting the above technical solution, after rotating one rotating rod, the second gear and the transmission chain are meshed, so that each second rotating rod rotates together, thereby conveniently pressing the second sliding block into the second sliding groove.

[0019] Optionally, second shielding covers are fixedly installed on the sides of the two side plates facing away from each other. A second motor is fixedly installed on the side of the second shielding cover away from the side plate. The rotating shaft of the second motor penetrates through the side of the second shielding cover away from the side plate, and the rotating shaft of the second motor is fixedly connected to one end of a second rotating rod away from the cam.

[0020] By adopting the above technical solution, the second shielding cover is used to protect the gears and the conveyor chain, thereby reducing the situation where dust and the like adhere to the gears and the conveyor chain. At the same time, the second motor facilitates driving the second rotating rod to rotate.

[0021] Optionally, telescopic rods are provided on the sides of the two side plates facing each other. One end of the telescopic rod is fixedly installed with a third slider. Third sliding grooves for damping sliding of the third slider are provided on the sides of the two side plates facing each other. The telescopic rod is provided with a limiting rod. One end of the limiting rod is fixedly connected to the rod body of the telescopic rod. The limiting rod is perpendicular to the telescopic rod. The included angle between the limiting rod and the telescopic rod is used to fit the corners of the sheet metal part placed on the support plate.

[0022] By adopting the above technical solution, when the sheet is placed on the support plate and the support plate is adjusted to support both sides of the sheet facing the baffle, the telescopic rod is pushed to move through the cooperation of the third sliding opening and the third sliding groove, so that the two telescopic rods respectively abut against both sides of the sheet facing the baffle. Then, the telescopic rod is pulled to make the two limiting rods respectively abut against both sides of the sheet facing the side plate, thereby reducing the situation where the sheet slides on the support plate.

[0023] A method for manufacturing a sheet metal part includes the following steps: obtaining order requirements, where the order requirements are the quantity and shape of the sheet metal parts to be produced; purchasing sheets according to the order requirements and sending them to a laser cutting machine; adjusting the distance between the support plates so that both sides of the sheet facing the baffle are supported by the support plates; starting the XYZ moving platform to drive the laser head to move, and the laser head cuts the sheet to form a sheet metal part; grinding and polishing the sheet metal part; and storing the ground and polished sheet metal part in a warehouse.

[0024] By adopting the above technical solution, when the sheet is placed above the support plate, the support plate is moved to support both sides of the sheet facing the baffle, thereby reducing the situation where the sheet bends when placed above the support plate.

[0025] Optionally, after starting the XYZ moving platform to drive the laser head to move and the laser head cuts the sheet to form a sheet metal part, it is judged whether the sheet metal part needs to be bent according to the order requirements; if so, the sheet metal part is sent to a bending machine for bending; if not, the sheet metal part is ground and polished.

[0026] After the sheet metal part is sent to the bending machine for bending, the sheet metal part is ground and polished.

[0027] By adopting the above technical solution, the sheet material is cut into sheet metal parts and then bent, which is beneficial to keep the sheet material flat during cutting, and thus facilitates cutting the sheet material.

[0028] In summary, the present application includes at least one of the following beneficial technical effects:

[0029] 1. After placing the sheet material on the support plate, move the support plate so that there are support plates on both sides of the sheet material facing the baffle, thereby reducing the occurrence of bending when the sheet material is placed above the support plate;

[0030] 2. After there are support plates on both sides of the sheet material facing the baffle, rotate the second rotating rod, and the second rotating rod drives the cam to rotate and press against the pressing plate. The pressing plate presses against the second slider under the push of the cam, so that the second slider is fixed inside the second sliding groove, thereby reducing the occurrence of sliding and shaking of the support plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 is the overall structural schematic diagram of the embodiment of the present application;

[0032] Figure 2 is the structural schematic diagram of placing the sheet material on the support plate in the embodiment of the present application;

[0033] Figure 3 is the exploded view between the side plate and the support plate in the embodiment of the present application;

[0034] Figure 4 is Figure 3 the enlarged view at A;

[0035] Figure 5 is Figure 3 the enlarged view at B;

[0036] Figure 6 is the partial structural schematic diagram of the embodiment of the present application, mainly showing the structure of the first gear;

[0037] Figure 7 is the partial structural schematic diagram of the embodiment of the present application, mainly showing the structures of the first shielding cover and the second shielding cover;

[0038] Figure 8 is Figure 7 the sectional view taken along A-A.

[0039] Description of reference numerals: 1, base; 2, side plate; 3, baffle; 4, XYZ moving platform; 5, laser head; 6, support plate; 7, first slider; 8, second slider; 9, third slider; 10, first chute; 11, second chute; 12, third chute; 13, transmission rod; 14, slide bar; 15, round block; 16, first rotating rod; 17, elliptical groove; 18, first gear; 19, drive bar; 20, first motor; 21, pressing plate; 22, cam; 23, second rotating rod; 24, second gear; 25, conveyor chain; 26, first shielding cover; 27, second shielding cover; 28, telescopic rod; 29, limiting rod. Detailed implementation manners

[0040] The following further elaborates on this application in conjunction with the Figures 1-8 accompanying drawings.

[0041] The embodiment of this application discloses a laser cutting machine for sheet metal parts and a production method for sheet metal parts.

[0042] Referring to Figure 1 , a laser cutting machine for sheet metal parts includes a base 1, side plates 2 and baffles 3. There are two side plates 2 which are arranged oppositely, and the bottom sides of the side plates 2 are fixedly installed on the top surface of the base 1. There are two baffles 3 which are arranged oppositely, and the bottom sides of the baffles 3 are fixedly installed on the top surface of the base 1. One baffle 3 is fixedly connected between one sides of the two side plates 2, and the other baffle 3 is fixedly connected between the other sides of the two side plates 2.

[0043] Referring to Figure 1 , Figure 2 , a XYZ moving platform 4 is fixedly installed between the top sides of the two side plates 2, and a laser head 5 is fixedly installed on the XYZ moving platform 4. A plurality of support plates 6 are arranged between the two side plates 2, and the support plates 6 are arranged at intervals along the length direction of the side plates 2. The top side of the support plate 6 is serrated.

[0044] Place the sheet material on the top side of the support plate 6, and then start the XYZ moving platform 4 to drive the laser head 5 to move. The laser emitted by the laser head 5 and the ejected gas cut the sheet material, thereby forming a sheet metal part. By arranging the support plates 6 at intervals, it is convenient for the waste generated after cutting the sheet material to fall into the base 1, reducing the situation where the waste after cutting the sheet material adheres to the sheet material after rebounding through the support plate 6. At the same time, it is beneficial to reduce the situation where the laser emitted by the laser head 5 burns the blackboard material after being reflected by the support plate 6.

[0045] Referring to Figure 1 , Figure 3, on both sides of the support plate 6 facing the side plate 2, a first slider 7 and a second slider 8 are fixedly installed. On one side of the two side plates 2 facing each other, a first sliding groove 10 for the first slider 7 to slide is provided. On one side of the two side plates 2 facing each other, a second sliding groove 11 for the second slider 8 to slide is also provided. The first sliding groove 10 and the second sliding groove 11 are both arranged along the length direction of the side plate 2.

[0046] In each embodiment of the present application, each side plate 2 has a plurality of first sliding grooves 10 and second sliding grooves 11. One first slider 7 corresponds to one first sliding groove 10, and one second slider 8 corresponds to one second sliding groove 11. In another embodiment, each side plate 2 has only one first sliding groove 10 and one second sliding groove 11. Each first sliding groove 10 allows a plurality of first sliders 7 to slide, and each second sliding groove 11 allows a plurality of second sliders 8 to slide.

[0047] In the prior art, by increasing the number of support plates 6, or arranging the support plates 6 horizontally and vertically between the two side plates 2, the sheet material placed on the support plate 6 has good support. However, when the number of support plates 6 increases, or the support plates 6 are arranged horizontally and vertically between the two side plates 2, the laser emitted by the laser head 5 is easily reflected by the support plate 6 and burns the sheet material, and the waste generated after cutting the sheet material is easily bounced back by the support plate 6 and adhered back to the sheet material.

[0048] In the present application, the first slider 7 is matched with the first sliding groove 10, so as to facilitate pushing the support plate 6 to move along the length direction of the first sliding groove 10. When placing the sheet material on the support plate 6, move the support plate 6 so that both sides of the sheet material facing the baffle 3 are supported by the support plate 6, thereby reducing the occurrence of bending when the sheet material is placed on the support plate 6, and further improving the cutting accuracy of the laser cutting machine for the sheet material. The number of support plates 6 in the present application is small, thereby reducing the occurrence of the support plate 6 reflecting light and rebounding materials when cutting the sheet material.

[0049] Refer to Figure 4 , Figure 5 , each first slider 7 is provided with a transmission rod 13, a sliding rod 14, a round block 15 and a first rotating rod 16. One end of the first rotating rod 16 is coaxially and fixedly connected to one side of the round block 15. The round block 15 is located inside the first sliding groove 10, and the first rotating rod 16 rotates through the bottom of the first sliding groove 10. An elliptical groove 17 is provided on the side of the round block 15 away from the first rotating rod 16. One end of the sliding rod 14 is slidably inserted into the elliptical groove 17, and the other end of the sliding rod 14 is fixedly connected to one end of the transmission rod 13. The other end of the transmission rod 13 is hinged to the first slider 7.

[0050] Rotate the first rotating rod 16, and the first rotating rod 16 drives the circular block 15 to rotate. When the circular block 15 rotates, it cooperates with the elliptical groove 17 and the sliding rod 14, so that the circular block 15 pulls the transmission rod 13 back and forth along the direction of the first sliding groove 10. The transmission rod 13 drives the first slider 7 to move along the length direction of the first sliding groove 10, thus facilitating the movement of the support plate 6.

[0051] Refer to Figure 6 、 Figure 7 For each first rotating rod 16, a first gear 18 is provided. The first gear 18 is fixedly sleeved on one end of the first rotating rod 16 located outside the first sliding groove 10 after passing through the bottom of the first sliding groove 10. The first gear 18 abuts against the side plate 2 on the side away from the support plate 6. A driving strip 19 is provided on the side of the side plate 2 away from the support plate 6. The driving strip 19 is located above the gear, and the gear meshes with the driving strip 19.

[0052] Refer to Figure 6 、 Figure 8 Refer to

[0053] The first motor 20 is fixedly installed on the side of the first shielding cover 26 away from the side plate 2. The rotating shaft of the first motor 20 is fixedly connected to one end of a first rotating rod 16 away from the circular block 15. The diameters of the first gears 18 located inside the same first shielding cover 26 decrease in sequence along the length direction of the driving strip 19.

[0054] Refer to Figure 6 、 Figure 8 Due to the meshing of the first gear 18 and the driving strip 19, when the first motor 20 is started, each first gear 18 rotates together, and then drives each first rotating rod 16 to rotate together. Since the diameters of the first gears 18 located inside the same first shielding cover 26 decrease in sequence along the length direction of the driving strip 19, the rotation angle of each first rotating rod 16 decreases as the diameter of the first gear 18 increases.

[0055] When placing the plate above the support plate 6, by moving each support plate 6 together, there are support plates 6 on both sides of the plate facing the baffle 3 for support, thus facilitating the reduction of the moving distance of a single support plate 6.

[0056] When reducing the distance between two adjacent support plates 6 so that both sides of the plate facing the baffle 3 are supported by the support plates 6, the moving distance of a single support plate 6 is reduced, which is beneficial to reducing the occurrence of the situation where the support plate 6 reflects the laser and rebounds the waste cut from the plate.

[0057] When increasing the distance between two adjacent support plates 6 so that both sides of the plate facing the baffle 3 are supported by the support plates 6, the moving distance of a single support plate 6 is reduced, which is beneficial to reducing the occurrence of the situation where the part of the plate between the two support plates 6 is bent.

[0058] Refer to Figure 4 、 Figure 5 Refer to

[0059] Refer to Figure 6 、 Figure 8 A pressing plate 21 and a cam 22 are arranged inside the second sliding groove 11. The pressing plate 21 is located above the second slider 8, and the cam 22 is located above the pressing plate 21. One side of the cam 22 close to the bottom of the second sliding groove 11 is fixedly installed with a second rotating rod 23. The end of the second rotating rod 23 away from the cam 22 rotates through the bottom of the second sliding groove 11.

[0060] A second gear 24 is arranged on the second rotating rod 23. The second gear 24 is fixedly sleeved on the end of the second rotating rod 23 away from the cam 22. The second gear 24 abuts against the side of the side plate 2 away from the support plate 6.

[0061] A transmission chain 25 is arranged on the side of the side plate 2 away from the support plate 6. The transmission chain 25 meshes with the second gear 24. A second shielding cover 27 is fixedly installed on the side of the side plate 2 away from the support plate 6. The transmission chain 25 and the second gear 24 are both located inside the second shielding cover 27. A second motor is fixedly installed on the side of the second shielding cover 27 away from the side plate 2. The rotating shaft of the second motor penetrates through the side of the second shielding cover 27 away from the side plate 2, and the rotating shaft of the second motor is fixedly connected to the end of a second rotating rod 23 away from the cam 22.

[0062] Refer to Figure 1 、 Figure 3, on one side of the two side plates 2 facing each other, a third slider 9 is provided, and on one side of the two side plates 2 facing each other, a third sliding groove 12 for the third slider 9 to slide is opened. The third slider 9 is fixedly installed with a telescopic rod 28, and a limiting rod 29 is fixedly installed on the rod body of the telescopic rod 28. The telescopic rod 28 and the limiting rod 29 are perpendicular to each other.

[0063] Refer to Figure 2 , Figure 3 , after placing the plate on the support plate 6 and adjusting the support plate 6, push the telescopic rod 28 to move along the length direction of the third sliding groove 12, so that the two telescopic rods 28 respectively abut against both sides of the plate facing the baffle 3. Then stretch the telescopic rod 28, so that the two limiting rods 29 respectively abut against both sides of the plate facing the side plate 2.

[0064] By making the limiting rod 29 and the telescopic rod 28 on one side plate 2 abut against one corner of the plate, and the limiting rod 29 and the telescopic rod 28 on the other side plate 2 abut against the other corner diagonally opposite to the plate, it is beneficial to reduce the situation of the plate sliding and shaking on the support plate 6.

[0065] When driving the XYZ moving platform 4 to drive the laser head 5 to cut the plate, when the laser head 5 moves above the position where the support plate 6 is located, start the second motor to release the second slider 8 by the pressing plate 21. Then start the first motor 20, and the first motor 20 drives the support plate 6 to move away from the laser head 5. Then restart the second motor to make the pressing plate 21 press the second slider 8. Then start the laser head 5 to cut the plate. After the laser head 5 leaves, start the second motor to release the second slider 8 by the pressing plate 21. Then start the first motor 20, and the first motor 20 drives the support plate 6 to return to its original position, so as to reduce the situation that both sides of the plate facing the baffle 3 are bent. After the support plate 6 returns to its original position, start the second motor again to make the pressing plate 21 press the second slider 8.

[0066] During the process of the laser head 5 cutting the plate, the limiting rod 29 and the telescopic rod 28 limit the plate, so as to reduce the situation that the movement of the support plate 6 drives the plate to move.

[0067] A method for producing sheet metal parts, using a laser cutting machine for sheet metal parts of the present application for production, includes the following steps:

[0068] S1. Obtain the order requirements, and then execute step S2.

[0069] The order requirements are the shape, quantity, thickness and material of the sheet metal parts to be produced.

[0070] S2. Purchase the plate according to the order requirements and send it to the laser cutting machine, and then execute step S3.

[0071] Purchase the required number of sheet materials according to the order requirements, and then send the purchased sheet materials to the laser cutting machine.

[0072] S3. Adjust the spacing between the support plates 6 so that both sides of the sheet material facing the baffle 3 are supported by the support plates 6. The following steps:

[0073] S301. Increase the spacing between two adjacent support plates 6 so that both sides of the sheet material facing the baffle 3 are supported by the support plates 6, and then perform step S302.

[0074] S302. Check whether the part of the support plate 6 located between the two support plates 6 is bent; if so, perform step S303, if not, return to perform step S301.

[0075] S303. Decrease the spacing between two adjacent support plates 6 so that both sides of the sheet material facing the baffle 3 are supported by the support plates 6, and then perform step S304.

[0076] S304. Check whether the part of the support plate 6 located between the two support plates 6 is bent; if so, perform step S303, if not, perform step S4.

[0077] Each time the spacing between two adjacent support plates 6 is increased or decreased by a preset value, which is set by setting the angle of rotation of the first motor 20 each time it is started. By facilitating the adjustment of the spacing between adjacent support plates 6, it is beneficial to increase the spacing between adjacent support plates 6 while the support plates 6 provide good support for the sheet material.

[0078] S4. Start the XYZ moving platform 4 to drive the laser head 5 to move, and the laser head 5 cuts the sheet material to form a sheet metal part. Then perform step S5.

[0079] S5. Judge whether the sheet metal part needs to be bent according to the order requirements; if so, perform step S6; if not, perform step S7.

[0080] S6. Send the sheet metal part into the bending machine for bending, and then perform step S7.

[0081] S7. Perform grinding and polishing on the sheet metal part. Then perform step S8.

[0082] S8. Store the ground and polished sheet metal part in the warehouse.

[0083] The implementation principle of a laser cutting machine for sheet metal parts and a sheet metal part production method in an embodiment of the present application is: after placing the sheet material on the support plate 6, start the first motor 20 to adjust the spacing between two adjacent support plates 6 so that both sides of the sheet material facing the baffle 3 are supported by the support plates 6, thereby reducing the occurrence of bending of the sheet material on the support plate 6.

[0084] The above are all preferred embodiments of the present application, and do not limit the protection scope of the present application accordingly. Therefore, all equivalent changes made according to the structure, shape and principle of the present application shall be covered within the protection scope of the present application.

Claims

1. A laser cutting machine for sheet metal parts, comprising a base (1), an XYZ moving platform (4) and a laser head (5). Two side plates (2) are fixedly installed on the top side of the base (1). The two side plates (2) are arranged opposite to each other. Between one sides of the two side plates (2), and also between the other sides of the two side plates (2), baffle plates (3) are fixedly installed. The XYZ moving platform (4) is fixedly installed on the top sides of the two side plates (2). The laser head (5) is installed on the XYZ moving platform (4). A plurality of support plates (6) are arranged between the two side plates (2). The top side of the support plate (6) is serrated. It is characterized in that: Both sides of the support plate (6) facing the side plate (2) are fixedly installed with first sliders (7). On each of the two side plates (2), a first sliding groove (10) for the first slider (7) to slide is formed on the mutually facing surface. The first sliding groove (10) is arranged along the length direction of the side plate (2). Each first slider (7) is provided with a transmission rod (13), a sliding rod (14), a round block (15) and a first rotating rod (16). One end of the first rotating rod (16) is coaxially and fixedly connected to one surface of the round block (15). The first rotating rod (16) rotatably penetrates the bottom of the first sliding groove (10). An elliptical groove (17) is formed on the surface of the round block (15) away from the first rotating rod (16). One end of the sliding rod (14) is slidably inserted into the elliptical groove (17). The other end of the sliding rod (14) is fixedly connected to one end of the transmission rod (13). The other end of the transmission rod (13) is hinged to the first slider (7). Each first rotating rod (16) is provided with a first gear (18). The first gear (18) is fixedly sleeved on the part of the first rotating rod (16) located outside the first sliding groove (10). On both sides of the two side plates (2) away from the support plate (6), a first shielding cover (26) is fixedly installed. The end of the first rotating rod (16) away from the round block (15) is rotatably inserted into the inner wall of the first shielding cover (26) away from the side plate (2). The first gear (18) is located inside the first shielding cover (26). A driving strip (19) is arranged inside the first shielding cover (26). The first gear (18) meshes with the driving strip (19). The diameters of the first gears (18) located inside the same first shielding cover (26) decrease in sequence along the length direction of the driving strip (19). A first motor (20) is fixedly installed on one side of the first shielding cover (26) away from the side plate (2). The rotating shaft of the first motor (20) is fixedly connected to the end of one first rotating rod (16) away from the round block (15).

2. The laser cutting machine for sheet metal parts according to claim 1, wherein: The inner wall of the first shielding cover (26) away from the side plate (2) and the inner top wall of the first shielding cover (26) are both in contact with the driving strip (19). The driving strip (19) is in contact with the side plate (2) close to the first shielding cover (26).

3. A laser cutting machine for sheet metal parts according to claim 1, characterized in that: Both sides of the support plate (6) close to the side plate (2) are fixedly installed with second sliders (8). On each of the two side plates (2), a second sliding groove (11) for the second slider (8) to slide is formed on the mutually facing surface. A pressing plate (21) and a cam (22) are arranged inside the second sliding groove (11). The pressing plate (21) is located above the second slider (8). The cam (22) is located above the pressing plate (21). The cam (22) is fixedly installed with a second rotating rod (23). The second rotating rod (23) rotatably penetrates the bottom of the second sliding groove (11). The second rotating rod (23) is used to drive the cam (22) to rotate and press tightly against the pressing plate (21).

4. A laser cutting machine for sheet metal parts according to claim 3, characterized in that: On one side of each of the two side plates (2) facing away from each other, a conveyor chain (25) is provided. At one end of the second rotating rod (23) away from the cam (22), a second gear (24) is installed, and the conveyor chain (25) meshes with the second gear (24).

5. A laser cutting machine for sheet metal parts according to claim 4, characterized in that: On one side of each of the two side plates (2) facing away from each other, a second shielding cover (27) is fixedly installed. On one side of the second shielding cover (27) away from the side plate (2), a second motor is fixedly installed. The rotating shaft of the second motor penetrates through the side of the second shielding cover (27) away from the side plate (2), and the rotating shaft of the second motor is fixedly connected to one end of a second rotating rod (23) away from the cam (22).

6. The laser cutting machine for sheet metal parts according to claim 1, wherein: On one side of each of the two side plates (2) facing each other, a telescopic rod (28) is provided. At one end of the telescopic rod (28), a third slider (9) is fixedly installed. On one side of each of the two side plates (2) facing each other, a third chute (12) for the third slider to slide in a damped manner is formed. The telescopic rod (28) is provided with a limiting rod (29). One end of the limiting rod (29) is fixedly connected to the rod body of the telescopic rod (28). The limiting rod (29) is perpendicular to the telescopic rod (28), and the included angle between the limiting rod (29) and the telescopic rod (28) is used to fit the corner of the sheet metal part placed on the support plate (6).

7. A production method for sheet metal parts, which is produced using a laser cutting machine for sheet metal parts as described in any one of claims 1-6, characterized in that, It includes the following steps: Obtain the order requirements, where the order requirements are the quantity and shape of the sheet metal parts to be produced; purchase the sheet material according to the order requirements and send it to the laser cutting machine; adjust the distance between the support plates (6) so that both sides of the sheet material facing the baffle (3) are supported by the support plates (6); start the XYZ moving platform (4) to drive the laser head (5) to move, and the laser head (5) cuts the sheet material to form sheet metal parts; polish the sheet metal parts; store the polished sheet metal parts in the warehouse.

8. A method for producing a sheet metal part according to claim 7, characterized in that: After starting the XYZ moving platform (4) to drive the laser head (5) to move and the laser head (5) cuts the sheet material to form sheet metal parts, judge whether the sheet metal parts need to be bent according to the order requirements; if so, send the sheet metal parts into the bending machine for bending; if not, perform polishing on the sheet metal parts; After sending the sheet metal parts into the bending machine for bending, perform polishing on the sheet metal parts.

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