Laser cutting machine and cutting method for sheet metal

Abstract

The present invention provides a laser cutting machine and cutting method for sheet metal parts, including a support plate, a transmission rod, a cutting mechanism and a sheet metal part transmission mechanism. The support plate is provided with two pieces, the transmission rod is rotatably connected between two adjacent support plates and symmetrically arranged at both ends of the support plate, the cutting mechanism is arranged on the support plate, and the cutting mechanism includes a support frame, a supporting assembly and a laser cutting machine, the support frame is fixed to the support plate, the supporting assembly support frame is connected to the support frame, and the laser cutting machine is arranged on the supporting assembly. The present invention, through the arrangement of the sheet metal part transmission mechanism, enables the sheet metal parts to be quickly removed after cutting is completed, and the uncut sheet metal parts can be pushed to the appropriate position for the next cutting operation, thereby realizing a streamlined cutting operation, greatly improving the cutting efficiency, and replacing the traditional manual operation with a mechanized linkage structure, saving human resources.

Description

Technical Field

[0001] The present invention relates to the field of laser cutting technology, and in particular to a laser cutting machine and a cutting method for sheet metal parts. Background Art

[0002] The laser cutting machine uses a high-power density laser beam to irradiate the material to be cut, so that the material is quickly heated to the vaporization temperature and evaporated to form holes. As the beam moves on the material, the holes continuously form a very narrow slit to complete the cutting of the material. The materials to be cut are mainly relatively thin flat materials, such as polymer films, glass, metal film sheets, stainless steel plates, etc. In people's daily lives, the use of laser cutting machines for cutting sheet metal parts is also very extensive. Sheet metal parts are products processed by sheet metal technology, and we cannot live without sheet metal parts everywhere in our lives.

[0003] When existing laser cutting machines cut sheet metal parts, they generally need to place the sheet metal parts on the cutting table first and then cut them through the laser cutting machine. After the cutting is completed, the cut part needs to be manually removed and the uncut sheet metal parts need to be pushed to the appropriate position before the next cutting operation. This processing method requires a lot of manpower during processing, and at the same time it is also impossible to achieve continuous assembly line operation. The process of moving and taking will take a certain amount of time, and the work efficiency is low. Therefore, how to make the laser cutting of sheet metal parts achieve assembly line operation has become an urgent problem to be solved. Summary of the Invention

[0004] In view of the deficiencies of the prior art, the present invention provides a laser cutting machine and a cutting method for sheet metal parts.

[0005] The present invention solves the above technical problems through the following technical means:

[0006] A laser cutting machine for sheet metal parts includes a support plate, a transmission rod, a cutting mechanism, and a sheet metal part transmission mechanism. The support plates are provided with two pieces. The transmission rod is rotatably connected between two adjacent support plates and symmetrically arranged at both ends of the support plates. The cutting mechanism is arranged on the support plates, and the cutting mechanism includes a support frame, a supporting assembly, and a laser cutting machine. The support frame is fixed to the support plate, the supporting assembly is arranged on the support frame, and the laser cutting machine is arranged on the supporting assembly.

[0007] The sheet metal transmission mechanism includes a linkage assembly and a push assembly. The linkage assembly includes a limit plate, a tensioner, a second servo motor and a second belt. The limit plate is set at one end of the transmission rod. A steel plate is fixed at the center of the support plate. The tensioner is rotatably connected to one side of the steel plate and two are arranged in parallel. The second servo motor is fixed on the other side of the steel plate, and the output shaft passes through the steel plate and is located below the tensioner. The second belt is set between the limit plates of the two adjacent transmission rods and passes around the tensioner and the output shaft of the second servo motor.

[0008] The push assembly comprises a baffle which is fixed on one of the transmission rods and is symmetrically arranged in the upper, lower, left and right directions.

[0009] Preferably, the pushing assembly also includes a push plate, a clamping plate, a guide rod and a return spring. The push plate is slidably arranged on the support plate. One end of the guide rod is fixed on the clamping plate, and the other end passes through the push plate and is slidably connected to the push plate. The clamping plate is located below the push plate, and a chuck is provided at the top of the guide rod. The return spring is sleeved on the guide rod and is located between the push plate and the chuck.

[0010] Preferably, protrusions are symmetrically provided on both sides of the bottom of the push plate, and a sliding groove is provided on the upper surface of the support plate, and the protrusions are slidably engaged in the sliding groove.

[0011] Preferably, a supporting plate is horizontally fixed between two adjacent support plates, and rollers are rotatably connected to the supporting plate, and a plurality of rollers are equidistantly arranged.

[0012] Preferably, the supporting assembly includes a vertical supporting unit and a horizontal supporting unit. The vertical supporting unit includes a vertical plate, a cylinder, a first guide rail and a horizontal plate. The vertical plate is vertically welded to the support frame. The fixed part of the cylinder is fixed at the top center of the vertical plate. The telescopic part of the cylinder is connected to the horizontal plate. The first guide rail is symmetrically fixed on both sides of the vertical plate, and the horizontal plate is slidably clamped on the first guide rail.

[0013] Preferably, the lateral supporting unit includes a second guide rail, a first servo motor, a docking disk and a first belt. The second guide rail is horizontally fixed on the transverse plate. The laser cutting machine is slidably clamped on the second guide rail. The docking disk is rotatably connected to both ends of the transverse plate. The first servo motor is fixed at one end of the transverse plate, and the output shaft of the first servo motor is coaxially fixed with one of the docking disks. The first belt is arranged between two adjacent docking disks, and the first belt portion is connected to the laser cutting machine.

[0014] Preferably, the inner side of the second belt and the outer wall of the limiting plate and the output shaft of the second servo motor are all provided with a tooth groove structure, and the second belt is respectively engaged with the limiting plate and the output shaft of the second servo motor.

[0015] The cutting method of sheet metal using a laser cutting machine includes the following steps:

[0016] S1: Fix the material. First, place the sheet metal to be cut on the support plate. Then, clamp one end of the sheet metal between the push plate and the clamping plate. The clamping plate clamps the sheet metal through the elastic force of the return spring, and at the same time, the other end of the sheet metal abuts against the baffle.

[0017] S2: Position adjustment: The horizontal plate is driven to slide on the first guide rail by the telescopic part of the cylinder. After the laser cutting machine is adjusted to an appropriate height, the first servo motor is controlled to drive the docking plate to rotate, thereby driving the first belt to drive the laser cutting machine to slide on the second guide rail through the first belt, and the laser cutting machine is moved to an appropriate position in the horizontal direction;

[0018] S3: Laser cutting: The laser cutting machine emits a laser beam to cut the sheet metal. During the cutting process, the first servo motor drives the docking plate and the first belt to move in conjunction. The first belt drives the laser cutting machine to slide at a constant speed on the second guide rail to complete the cutting operation of the sheet metal.

[0019] S4: After the material is unloaded and the cutting is completed, the second servo motor is started to drive the second belt to rotate, and the transmission rod is rotated by the second belt. When the transmission rod rotates, the baffle rotates synchronously and lifts the sheet metal that has been cut on the baffle. At the same time, the push plate slides along the second belt and pushes the sheet metal to move, so that one end of the second belt abuts against the other baffle.

[0020] Beneficial effects of the present invention:

[0021] 1. The sheet metal transmission mechanism enables the sheet metal parts to be quickly taken out after cutting is completed, and the uncut sheet metal parts can be moved to the appropriate position for the next cutting operation, thus realizing the assembly line cutting operation, greatly improving the cutting efficiency, and replacing the traditional manual operation with the mechanized linkage structure, thus saving human resources;

[0022] 2. By setting up the vertical supporting unit and the horizontal supporting unit, the horizontal and vertical positions of the laser cutting machine can be adjusted to a certain extent, so that the laser cutting machine can be quickly adjusted to the appropriate position for use, thereby improving the processing accuracy. At the same time, the horizontal supporting unit drives the laser cutting machine to move in the horizontal direction to realize the cutting operation of sheet metal parts and meet the cutting needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 Schematic diagram of the three-dimensional structure of the laser cutting machine and cutting method for sheet metal according to an embodiment of the present invention;

[0024] Figure 2Schematic diagram of the cutting mechanism structure of the laser cutting machine and cutting method for sheet metal according to an embodiment of the present invention;

[0025] Figure 3 Schematic diagram of the sheet metal transmission mechanism structure of the sheet metal laser cutting machine and cutting method according to an embodiment of the present invention;

[0026] Figure 4 A partially enlarged structural schematic diagram of a laser cutting machine and cutting method for sheet metal according to an embodiment of the present invention;

[0027] Figure 5 Schematic diagram of the push plate and its connection structure of the laser cutting machine and cutting method for sheet metal according to an embodiment of the present invention;

[0028] Figure 6 The figure is a schematic diagram of the cutting process of the laser cutting machine and cutting method for sheet metal parts according to an embodiment of the present invention.

[0029] In the figure: 1. support plate; 2. transmission rod; 3. cutting mechanism; 301. support frame; 302. vertical plate; 303. cylinder; 304. first guide rail; 305. horizontal plate; 306. second guide rail; 307. first servo motor; 308. docking plate; 309. first belt; 310. laser cutting machine; 4. sheet metal transmission mechanism; 401. limit plate; 402. tensioning pulley; 403. second servo motor; 404. second belt; 405. push plate; 406. clamping plate; 407. guide rod; 408. return spring; 409. bump; 410. baffle; 411. support plate. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0031] Example

[0032] like Figures 1-6 As shown, in this embodiment, a laser cutting machine for sheet metal includes a support plate 1, a transmission rod 2, a cutting mechanism 3 and a sheet metal transmission mechanism 4. The support plate 1 is provided with two pieces, and the transmission rod 2 is rotatably connected between two adjacent support plates 1 and symmetrically arranged at both ends of the support plate 1. The cutting mechanism 3 is arranged on the support plate 1, and the cutting mechanism 3 includes a support frame 301, a supporting assembly and a laser cutting machine 310; the support frame 301 is fixed on the support plate 1, the supporting assembly is arranged on the support frame 301, and the laser cutting machine 310 is arranged on the supporting assembly;

[0033] The sheet metal transmission mechanism 4 includes a linkage component and a push component. The linkage component includes a limit plate 401, a tensioner 402, a second servo motor 403, and a second belt 404. The limit plate 401 is set at one end of the transmission rod 2. A steel plate is fixed at the center of the support plate 1. The tensioner 402 is rotatably connected to one side of the steel plate, and two are arranged in parallel. The second servo motor 403 is fixed on the other side of the steel plate, and its output shaft passes through the steel plate and is located below the tensioner 402. The second belt 404 is sleeved between the limit plates 401 of the two adjacent transmission rods 2 and passes around the tensioner 402 and the output shaft of the second servo motor 403.

[0034] The push assembly includes a baffle 410, which is fixed on one of the transmission rods 2 and is symmetrically arranged in four pieces.

[0035] The push assembly also includes a push plate 405, a clamping plate 406, a guide rod 407 and a return spring 408. The push plate 405 is slidably arranged on the support plate 1. One end of the guide rod 407 is fixed on the clamping plate 406, and the other end passes through the push plate 405 and is slidably connected to the push plate 405. The clamping plate 406 is located below the push plate 405. A chuck is provided at the top of the guide rod 407. The return spring 408 is sleeved on the guide rod 407 and is located between the push plate 405 and the chuck.

[0036] Specifically, during work, the sheet metal to be cut is first placed on the supporting plate 411, and then one end of the sheet metal is clamped between the push plate 405 and the clamping plate 406. Then, after the laser cutting machine 310 is adjusted to an appropriate position, the sheet metal is cut by the laser cutting machine 310. After the cutting is completed, the second servo motor 403 is started to drive the second belt 404 to rotate, and the transmission rod 2 is rotated through the second belt 404. When the transmission rod 2 rotates, the baffle 410 rotates synchronously and lifts the sheet metal that has been cut on the baffle 410. At the same time, the push plate 405 slides with the second belt 404 and pushes the sheet metal to move, so that one end of the second belt 404 abuts against the other baffle 410, so that the sheet metal can be quickly taken out after being cut, and the uncut sheet metal is pushed to the appropriate position for the next cutting operation, realizing a streamlined cutting operation and greatly improving the cutting efficiency.

[0037] Example 2

[0038] like Figures 1-6As shown, in some embodiments, the supporting assembly includes a vertical supporting unit and a horizontal supporting unit, the vertical supporting unit includes a vertical plate 302, a cylinder 303, a first guide rail 304 and a horizontal plate 305, the vertical plate 302 is vertically welded to the support frame 301, the fixed part of the cylinder 303 is fixed at the top center of the vertical plate 302, the telescopic part of the cylinder 303 is connected to the horizontal plate 305, the first guide rail 304 is symmetrically fixed on both sides of the vertical plate 302, the horizontal plate 305 is slidably clamped on the first guide rail 304, the horizontal supporting unit includes a second guide rail 306, a first servo motor 307, a docking plate 308 and a first belt 309, the second guide rail 306 is horizontally fixed on the horizontal plate 305, the laser cutting machine 310 is slidably clamped on the second guide rail 306, the docking plate 308 is rotatably connected to both ends of the horizontal plate 305, and the first servo motor 307 is fixed at one end of the horizontal plate 305. The output shaft of the first servo motor 307 is coaxially fixed with one of the docking plates 308, the first belt 309 is arranged between two adjacent docking plates 308, and the first belt 309 is partially connected to the laser cutting machine 310. Specifically, when in use, the telescopic part of the cylinder 303 is used to drive the cross plate 305 to slide on the first guide rail 304 to adjust the position of the laser cutting machine 310 in the vertical direction, and the first servo motor 307 drives the docking plate 308 to rotate, thereby linking the first belt 309, and then the first belt 309 drives the laser cutting machine 310 to slide on the second guide rail 306, thereby realizing the adjustment of the horizontal position of the laser cutting machine 310. Through the horizontal and vertical adjustment structures, the laser cutting machine 310 can be quickly adjusted to an appropriate position for use, thereby improving processing accuracy.

[0039] Example 3

[0040] like Figures 1-6 As shown, in some embodiments, protrusions 409 are symmetrically provided on both sides of the bottom of the push plate 405, and a sliding groove is provided on the upper surface of the support plate 1. The protrusions 409 are slidably engaged in the sliding groove, and the push plate 405 is limited by the protrusions 409, so that the push plate 405 can slide within the limited position of the support plate 1.

[0041] like Figures 1-6 As shown, in some embodiments, a support plate 411 is horizontally fixed between two adjacent support plates 1, and rollers are rotatably connected to the support plate 411, and a number of rollers are equidistantly arranged. The sheet metal parts are supported by the support plate 411, and the friction between the sheet metal parts and the support plate 411 is reduced by the setting of the rollers, so that the sheet metal parts can slide better on the support plate 411.

[0042] like Figures 1-6As shown, in some embodiments, the inner side of the second belt 404 and the outer walls of the output shaft of the limiting plate 401 and the second servo motor 403 are provided with a toothed structure, and the second belt 404 is respectively meshed with the limiting plate 401 and the output shaft of the second servo motor 403. The toothed structure is provided to prevent the second belt 404 from slipping during linkage.

[0043] Example 4

[0044] The cutting method of sheet metal using a laser cutting machine includes the following steps:

[0045] S1: Fixing the material: First, place the sheet metal to be cut on the support plate 411, then clamp one end of the sheet metal between the push plate 405 and the clamping plate 406. The elastic force of the return spring 408 causes the clamping plate 406 to clamp the sheet metal, and at the same time, the other end of the sheet metal is brought into contact with the stop plate 410.

[0046] S2: Position adjustment: The telescopic portion of the cylinder 303 is extended to drive the horizontal plate 305 to slide on the first guide rail 304. After the laser cutter 310 is adjusted to an appropriate height, the first servo motor 307 is controlled to drive the docking plate 308 to rotate, thereby driving the first belt 309 to move the laser cutter 310 on the second guide rail 306. The laser cutter 310 is moved horizontally to an appropriate position.

[0047] S3: Laser cutting: The sheet metal part is cut by a laser beam emitted by the laser cutting machine 310. During the cutting process, the first servo motor 307 drives the docking plate 308 and the first belt 309 to move in a coordinated manner. The first belt 309 drives the laser cutting machine 310 to slide at a constant speed on the second guide rail 306 to complete the cutting operation on the sheet metal part.

[0048] S4: After the material is unloaded and the cutting is completed, the second servo motor 403 is started to drive the second belt 404 to rotate, and the transmission rod 2 is rotated by the second belt 404. When the transmission rod 2 rotates, the baffle 410 rotates synchronously and lifts the sheet metal that has been cut and is located on the baffle 410. At the same time, the push plate 405 slides along with the second belt 404 and pushes the sheet metal to move, so that one end of the second belt 404 abuts against the other baffle 410.

[0049] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same.

Claims

1. A laser cutting machine for sheet metal parts, comprising a support plate (1), a transmission rod (2), a cutting mechanism (3) and a sheet metal part transmission mechanism (4), characterized in that: The support plates (1) are provided with two pieces, the transmission rod (2) is rotatably connected between two adjacent support plates (1) and symmetrically arranged at both ends of the support plates (1), the cutting mechanism (3) is arranged on the support plates (1), and the cutting mechanism (3) comprises a support frame (301), a supporting assembly and a laser cutting machine (310); the support frame (301) is fixed on the support plates (1), the supporting assembly is arranged on the support frame (301), and the laser cutting machine (310) is arranged on the supporting assembly; The sheet metal transmission mechanism (4) includes a linkage component and a push component, the linkage component includes a limit plate (401), a tensioning wheel (402), a second servo motor (403) and a second belt (404), the limit plate (401) is arranged at one end of the transmission rod (2), a steel plate is fixed at the center of the support plate (1), the tensioning wheel (402) is rotatably connected to one side of the steel plate, and two are arranged in parallel, the second servo motor (403) is fixed on the other side of the steel plate, and the output shaft passes through the steel plate and is located below the tensioning wheel (402), the second belt (404) is set between the limit plates (401) of two adjacent transmission rods (2) and passes around the tensioning wheel (402) and the output shaft of the second servo motor (403); The pushing assembly includes a baffle (410), which is fixed on one of the transmission rods (2) and has four baffles (410) symmetrically arranged in the upper and lower directions and the left and right directions. The pushing assembly further comprises a push plate (405), a clamping plate (406), a guide rod (407) and a return spring (408), wherein the push plate (405) is slidably arranged on the support plate (1), one end of the guide rod (407) is fixed on the clamping plate (406), and the other end passes through the push plate (405) and is slidably connected to the push plate (405), and the clamping plate (406) is located below the push plate (405), a chuck is provided at the top end of the guide rod (407), and the return spring (408) is sleeved on the guide rod (407) and is located between the push plate (405) and the chuck; The bottom of the push plate (405) is symmetrically provided with protrusions (409), and the upper surface of the support plate (1) is provided with a sliding groove, and the protrusions (409) are slidably engaged in the sliding groove; A supporting plate (411) is horizontally fixed between two adjacent support plates (1), and a plurality of rollers are rotatably connected to the supporting plate (411), and the rollers are evenly spaced. The supporting assembly includes a vertical supporting unit and a horizontal supporting unit, wherein the vertical supporting unit includes a vertical plate (302), a cylinder (303), a first guide rail (304) and a horizontal plate (305), wherein the vertical plate (302) is vertically welded to the support frame (301), the fixed portion of the cylinder (303) is fixed at the top center of the vertical plate (302), the telescopic portion of the cylinder (303) is connected to the horizontal plate (305), the first guide rail (304) is symmetrically fixed on both sides of the vertical plate (302), and the horizontal plate (305) is slidably clamped on the first guide rail (304); The transverse supporting unit comprises a second guide rail (306), a first servo motor (307), a docking plate (308) and a first belt (309); the second guide rail (306) is horizontally fixed on the transverse plate (305); the laser cutting machine (310) is slidably connected to the second guide rail (306); the docking plate (308) is rotatably connected to both ends of the transverse plate (305); the first servo motor (307) is fixed to one end of the transverse plate (305); the output shaft of the first servo motor (307) is coaxially fixed to one of the docking plates (308); the first belt (309) is arranged between two adjacent docking plates (308), and a portion of the first belt (309) is connected to the laser cutting machine (310); The inner side of the second belt (404) and the outer wall of the limiting plate (401) and the output shaft of the second servo motor (403) are all provided with tooth groove structures, and the second belt (404) is respectively engaged with the limiting plate (401) and the output shaft of the second servo motor (403).

2. The cutting method for sheet metal parts using a laser cutting machine according to claim 1, characterized in that: The following steps are involved: S1: Fix the material. First, place the sheet metal to be cut on the support plate (411). Then, clamp one end of the sheet metal between the push plate (405) and the clamping plate (406). The clamping plate (406) clamps the sheet metal by the elastic force of the return spring (408). At the same time, the other end of the sheet metal is brought into contact with the baffle (410). S2: Position adjustment, the telescopic portion of the cylinder (303) is extended to drive the horizontal plate (305) to slide on the first guide rail (304), and after the laser cutting machine (310) is adjusted to an appropriate height, the first servo motor (307) is controlled to drive the docking plate (308) to rotate, thereby causing the first belt (309) to be linked, and then the laser cutting machine (310) is driven by the first belt (309) to slide on the second guide rail (306), and the laser cutting machine (310) is moved to an appropriate position in the horizontal direction; S3: Laser cutting, the sheet metal part is cut by a laser beam emitted by a laser cutting machine (310), and while cutting, the first servo motor (307) drives the docking plate (308) and the first belt (309) to move in conjunction, and the laser cutting machine (310) is driven by the first belt (309) to slide at a uniform speed on the second guide rail (306) to complete the cutting operation on the sheet metal part; S4: After the material is unloaded and the cutting is completed, the second servo motor (403) is started to drive the second belt (404) to rotate, and the transmission rod (2) is rotated by the second belt (404). When the transmission rod (2) rotates, the baffle (410) rotates synchronously and lifts the sheet metal part that has been cut and is located on the baffle (410). At the same time, the push plate (405) slides along with the second belt (404) and pushes the sheet metal part to move, so that one end of the second belt (404) abuts against the other baffle (410).

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