A tool clamp for laser cutting of automobile parts

Abstract

The application discloses a tool clamp for laser cutting of automobile parts, and relates to the technical field of metal cutting equipment manufacturing, which comprises a laser welding machine, a motorized sliding machine A is arranged on the top of the laser welding machine, a motorized sliding machine B is arranged on the top of the motorized sliding machine A, a welder is arranged on one side of the motorized sliding machine B, and a heat dissipation mechanism is arranged on the bottom of the welder. The metal slag existing on the surface of the plate to be welded and the welding slag existing after the last welding are fully thrown out through the fixed plate, and the welding slag entering between each fixed plate is further thrown out outward under the rotation centrifugal action of the fixed plate, so that the welding slag generated in the welding and the particles on the surface of the plate are automatically pushed out before welding, air holes, inclusions and other problems in the welding process caused by the attachment of the welding slag and the particles are avoided, and the reliability and service life of the welded structure are not adversely affected.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of metal cutting equipment manufacturing, in particular to a tooling fixture for laser cutting of automobile parts. BACKGROUND

[0002] Laser welding is to use high-energy laser pulses to locally heat a small area of the material, and the energy of laser radiation spreads to the interior of the material through heat conduction, melts the material to form a specific molten pool;

[0003] The tooling fixture for laser cutting of automobile parts disclosed in the patent application with the publication number CN218081033U relates to the technical field of metal cutting equipment manufacturing, which comprises a device base, a sliding groove, a fixed plate, a laser cutting machine and a controller are arranged on the device base, a sliding block is slidably connected in the sliding groove, an electric telescopic rod is fixed on the sliding block, an installation block is fixed to the piston end of the electric telescopic rod, a clamping assembly is arranged on the installation block, the length between the part and the laser cutting machine is adjusted by pushing the sliding block in the sliding groove through the first electric push rod, and the installation block and the clamping assembly are driven to move up and down through the extension and retraction of the electric telescopic rod to cut parts of different heights.

[0004] When laser welding is performed on metal plate-shaped parts used in automobiles, the ambient temperature is usually low, while the welding position is at high temperature, which leads to a sudden temperature difference, increases the stress in the metal plate, and causes internal deformation of the metal plate, affecting the welding effect. In addition, the scattering of welding slag also causes the welding position to have slag, pores and inclusions in the welding process. SUMMARY

[0005] In view of the deficiencies of the prior art, the present application provides a tooling fixture for laser cutting of automobile parts to achieve the purpose of solving the above problems.

[0006] To achieve the above purpose, the present application is implemented by the following technical scheme: a tooling fixture for laser cutting of automobile parts, comprising a laser welding machine, an electric sliding machine A is arranged on the top of the laser welding machine, an electric sliding machine B is arranged on the top of the electric sliding machine A, a lift is arranged on one side of the electric sliding machine B, a welder is arranged on one side of the lift, and a heat dissipation mechanism is arranged at the bottom of the welder.

[0007] The heat dissipation mechanism comprises:

[0008] A telescopic rod is fixedly connected to the top of the telescopic rod and the bottom of the welder, a clamping block is fixedly connected to the bottom of the telescopic rod, a connecting ring is slidably connected to the inner wall of the clamping block, an internal spring is arranged in the telescopic rod, and the telescopic rod is used to push the connecting ring down by the internal spring.

[0009] The connecting sleeve is a hollow sleeve structure in the shape of a circular truncated cone, an arc-shaped groove is formed in the inner wall of the connecting sleeve, the arc-shaped groove is used for ventilation, a rotating ball A is rotatably connected to the top of the connecting sleeve, a hinged rod is fixedly connected to the top of the rotating ball A, a rotating ball B is fixedly connected to one end of the hinged rod, the outer wall of the rotating ball B is rotatably connected to the bottom of the welding device, the inner wall of the connecting ring is fixedly connected to the outer wall of the connecting sleeve, and the connecting sleeve is used for heat absorption of the metal plate.

[0010] Preferably, the outer wall of the connecting sleeve is fixedly connected with blades, and the bottom of the connecting sleeve is fixedly connected with fixed plates.

[0011] Preferably, one side of the clamping block is fixedly connected with a horizontal plate, the bottom of the horizontal plate is fixedly connected with a scraper, and one side of the scraper is slidably connected with the inner wall of the connecting sleeve.

[0012] Preferably, the blades are arranged in an inclined manner, the arc-shaped groove is in the shape of an arc, and the outer wall of the connecting sleeve is provided with an opening and closing mechanism.

[0013] Preferably, the opening and closing mechanism comprises a scraping strip, one side of the scraping strip is fixedly connected with a sliding block, and the outer wall of the sliding block is slidably connected with the inner wall of the arc-shaped groove.

[0014] Preferably, one side of the scraping strip is fixedly connected with a sliding plate, the outer wall of the sliding plate is slidably connected with a sliding sleeve A, and the outer wall of the sliding sleeve A is slidably connected with a sliding sleeve B.

[0015] Preferably, one side of the sliding sleeve B is fixedly connected with one side of the blade, and the sliding plate, the sliding sleeve A and the sliding sleeve B are used for covering and opening the arc-shaped groove.

[0016] Preferably, the sliding plate, the sliding sleeve A and the sliding sleeve B are all in the shape of an arc-shaped plate, and the fixed plate is in the shape of a square plate.

[0017] The application provides a tool clamp for laser cutting of automobile parts, which has the following advantages:

[0018] 1、The heat dissipation mechanism is arranged, an air circulation path from top to bottom is formed, metal slag existing on the surface of the plate to be welded at this time and welding slag existing after the last welding are thrown out through the fixed plates, welding slag entering between each fixed plate is further thrown out outward under the rotation centrifugal effect of the fixed plates, thereby the welding slag generated in the welding process and the particles on the surface of the plate are automatically pushed out before welding, air holes, inclusions and other problems in the welding process caused by the adhesion of the welding slag and the particles are avoided, and the reliability and service life of the welded structure are not adversely affected.

[0019] 2. This invention, by setting up a heat dissipation mechanism, utilizes the continuous lifting and lowering of the welding machine during the laser cutting process. The connecting sleeve is constantly pushed back and forth by the hinge rod, allowing the heat absorbed by the connecting sleeve to be quickly transferred into the connecting sleeve via the fan blades. During exhaust, the arc-shaped groove facilitates rapid heat exchange between the air and the heat source, achieving rapid heat dissipation of the connecting sleeve. This effectively and stably maintains stable heat dissipation for the metal plate, preventing the problem of warping and deformation of the metal plate caused by excessive temperature differences. It provides continuous and stable heat dissipation to the laser welding position in real time.

[0020] 3. By setting up a heat dissipation mechanism, the present invention can preheat the position to be welded by the temperature of the connecting sleeve when the welding machine is raised to weld the next position. This allows the temperature to rise partially before welding, which effectively avoids the problem of excessive temperature difference causing the plate to heat up rapidly during laser welding, resulting in rapid increase of internal stress and deformation of the metal plate.

[0021] 4. By setting up an opening and closing mechanism, the locking block and the horizontal plate remain stationary while the connecting sleeve rotates, forming a relative rotational motion with the connecting sleeve. Thus, during the welding process of the welder descending and lifting, the rotation of the connecting sleeve will slide and scrape relative to the locking block, the horizontal plate and the scraper, scraping off the welding slag produced by laser welding attached to the connecting sleeve. After falling, it flows outward with the air from between the fixed plates, realizing the automatic discharge of welding slag. This avoids excessive accumulation of welding slag on the connecting sleeve, which would cause it to fall and come into contact with the welder during laser cutting, resulting in a decrease in welding accuracy.

[0022] 5. This invention, through the setting of an opening and closing mechanism, enables the arc-shaped groove to open rapidly during laser welding, allowing for rapid heat exchange with the air and quickly cooling the rapidly heating connecting sleeve, preventing overheating. Simultaneously, when the welder is lifted after laser welding, the connecting sleeve rotates in the opposite direction, using the inertia of the scraper to slide in the arc-shaped groove within the connecting sleeve, causing the sliding plate, sliding sleeve A, and sliding sleeve B to extend and close the arc-shaped groove. This provides a certain degree of heat preservation for the connecting sleeve, allowing it to quickly heat the metal plate surface using its residual heat during the next descent to weld the metal plate, reducing the problem of excessive temperature difference during welding. It effectively utilizes the heat dissipation and heat preservation of the connecting sleeve to minimize the temperature difference of the metal plate.

[0023] 6、The present application is provided with opening and closing mechanism, when welding, the open arc-shaped groove will give a certain discharge space to the welding slag, avoid the accumulation of welding slag on the connecting sleeve, and the laser welding opportunity embedded in the arc-shaped groove will further scrape the residue in the arc-shaped groove when the scraping strip slides in the inner wall of the arc-shaped groove, then prevent the arc-shaped groove from being blocked by the solidified welding slag during ventilation and heat dissipation, and the problem of unable to fall off. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of the present application;

[0025] Figure 2 It is a structural schematic diagram of the heat dissipation mechanism of the present application Figure 1 ;

[0026] Figure 3 It is an enlarged view of A of the present application Figure 2 ;

[0027] Figure 4 It is a structural schematic diagram of the heat dissipation mechanism of the present application Figure 2 ;

[0028] Figure 5 It is a structural schematic diagram of the heat dissipation mechanism of the present application Figure 3 ;

[0029] Figure 6 It is an enlarged view of B of the present application Figure 5 ;

[0030] Figure 7 It is a structural schematic diagram of the heat dissipation mechanism of the present application Figure 4 ;

[0031] Figure 8 It is a schematic diagram of the movement state of the heat dissipation mechanism of the present application Figure 1 ;

[0032] Figure 9 It is a schematic diagram of the movement state of the heat dissipation mechanism of the present application Figure 2 ;

[0033] Figure 10 It is a disassembled structural schematic diagram of the opening and closing mechanism of the present application;

[0034] Figure 11 It is a structural schematic diagram of the opening and closing mechanism of the present application;

[0035] Figure 12 It is a schematic diagram of the movement state of the opening and closing mechanism of the present application.

[0036] In the figure: 1 laser welding machine, 2 electric sliding machine A, 3 heat dissipation mechanism, 301 telescopic rod, 302 arc-shaped groove, 303 connecting sleeve, 304 rotating ball A, 305 articulated rod, 306 rotating ball B, 307 fixed plate, 308 clamping block, 309 horizontal plate, 310 scraper, 311 connecting ring, 312 blade, 4 opening and closing mechanism, 401 scraping strip, 402 sliding plate, 403 sliding sleeve A, 404 sliding sleeve B, 405 sliding block, 5 electric sliding machine B, 6 elevator, 7 welder. DETAILED DESCRIPTION

[0037] Embodiment one: please refer to Figures 1-3 The application provides a technical solution: a tool fixture for laser cutting of automobile parts, comprising a laser welding machine 1, the top of the laser welding machine 1 is provided with an electric sliding machine A 2, the top of the electric sliding machine A 2 is provided with an electric sliding machine B 5, one side of the electric sliding machine B 5 is provided with an elevator 6, one side of the elevator 6 is provided with a welder 7, and the bottom of the welder 7 is provided with a heat dissipation mechanism 3.

[0038] The heat dissipation mechanism 3 comprises:

[0039] The telescopic rod 301 is fixedly connected to the bottom of the welder 7, the bottom of the telescopic rod 301 is fixedly connected with a clamping block 308, the inner wall of the clamping block 308 is slidably connected with a connecting ring 311, and the inside of the telescopic rod 301 is provided with a built-in spring, and the telescopic rod 301 is used to push the connecting ring 311 to descend by the built-in spring.

[0040] The connecting sleeve 303 is a hollow sleeve structure in the shape of a circular truncated cone, the inner wall of the connecting sleeve 303 is provided with an arc-shaped groove 302, the arc-shaped groove 302 is used to ventilate, the top of the connecting sleeve 303 is rotatably connected with a rotating ball A 304, the top of the rotating ball A 304 is fixedly connected with an articulated rod 305, one end of the articulated rod 305 is fixedly connected with a rotating ball B 306, the outer wall of the rotating ball B 306 is rotatably connected with the bottom of the welder 7, the inner wall of the connecting ring 311 is fixedly connected with the outer wall of the connecting sleeve 303, and the connecting sleeve 303 is used to heat the metal plate.

[0041] In use, the electric sliding machine B 5 is moved above the plate by starting the electric sliding machine A 2 to control the electric sliding machine B 5 to move on the laser welding machine 1, and then the welder 7 is controlled to ascend and descend by starting the elevator 6, and the laser welding work of the metal plate to be processed is realized when the welder 7 descends;

[0042] Embodiment two: please refer to Figures 1-9 On the basis of embodiment one, the application provides a technical solution: the outer wall of the connecting sleeve 303 is fixedly connected with a blade 312, and the bottom of the connecting sleeve 303 is fixedly connected with a fixed plate 307, and a gap is formed between each fixed plate 307.

[0043] The lateral plate 309 is fixedly connected to one side of the card block 308, and the scraper 310 is fixedly connected to the bottom of the lateral plate 309 and slidably connected to the inner wall of the connecting sleeve 303.

[0044] The blade 312 is obliquely arranged, the arc-shaped groove 302 is an arc-shaped groove, and the opening and closing mechanism 4 is arranged on the outer wall of the connecting sleeve 303.

[0045] When the welder 7 is lowered to perform laser welding on the metal plate by the lower laser head, the hinged rod 305 and the rotating ball A 304 are first pushed to the bottom of the connecting sleeve 303 by the rotating ball B 306 to abut against the surface of the metal piece when the welder 7 is lowered. After abutting, with the continuous lowering of the welder 7, the hinged rod 305 is pushed to the rotating ball A 304 and the connecting sleeve 303 to rotate by the rotating ball B 306, while the rotation of the rotating ball B 306 at the bottom of the welder 7 is limited, so that the hinged rod 305 always maintains an inclined state in the vertical falling state and cannot be rotated to a vertical state. Therefore, when the rotating ball A 304 is pushed to the connecting sleeve 303 by the hinged rod 305, the connecting sleeve 303 is pushed to rotate, and the hinged rod 305 starts to hinge and incline, thereby achieving rapid rotation of the connecting sleeve 303. After the connecting sleeve 303 rotates, the laser head at the bottom of the welder 7 is lowered to the bottom of the connecting sleeve 303 with the continuous lowering of the welder 7, thereby starting the laser welding work on the plate. Before the laser welding work, the rotation of the connecting sleeve 303 drives the blade 312 on the outer wall of the connecting sleeve 303 to rotate, thereby achieving the rotating fan effect to achieve rapid air flow. When the connecting sleeve 303 rotates and the blade 312 fans, the air in the connecting sleeve 303 flows out of each fixed plate 307, and the air above the connecting sleeve 303 is supplemented into the connecting sleeve 303, forming an air flow path from top to bottom. The metal slag on the surface of the plate to be welded at this time and the welding slag existing after the last welding are fully thrown out by the fixed plate 307, and the welding slag entering between each fixed plate 307 is further thrown out by the rotation and centrifugal action of the fixed plate 307, thereby completing the automatic pushing out of the welding slag and particles on the surface of the plate before welding. This avoids problems such as pores and inclusions in the welding process caused by the attachment of welding slag and particles, thereby avoiding adverse effects on the reliability and service life of the welding structure.

[0046] And when the welder 7 continuously welds the metal plate, the temperature of the welding part of the metal plate is too high, and a temperature difference is formed with other parts of the metal plate. If the amplitude of the temperature difference is too large, it is easy to cause the metal plate to be partially deformed. During the welding process, the connecting sleeve 303 is always pushed by the elastic force of the spring inside the connecting sleeve 303, so that the clamping block 308 always tightly presses the surface of the plate through the connecting ring 311, so that the temperature generated at the laser cutting position of the metal plate is quickly absorbed by the connecting sleeve 303, and the temperature and heat quickly enter the connecting sleeve 303. In the process of the laser cutting of the welder 7 continuously rising and falling, the connecting sleeve 303 is continuously pushed by the hinged rod 305 to move back and forth, so that the air is blown and circulated through the fan 312. The air enters the connecting sleeve 303 and is discharged from the gap between the fixed plate 307 below the connecting sleeve 303, and when the air is discharged, the arc-shaped groove 302 and the air have a large contact area to quickly exchange heat, quickly cool the connecting sleeve 303, effectively and stably maintain the stable cooling of the metal plate, and avoid the problem that the amplitude of the temperature difference is too large and the metal plate is partially deformed. Real-time stable cooling effect is maintained on the laser welding position, and when the welder 7 is lifted to weld the next position, the temperature of the connecting sleeve 303 can preheat the position to be welded, so that the temperature rises before welding. Also effectively avoid the problem that the temperature difference is too large, which causes the laser welding to quickly heat the plate and the stress in the metal plate to increase rapidly and deform;

[0047] When the connecting sleeve 303 rotates, the clamping block 308 rotates with the connecting ring 311 and the connecting sleeve 303 through the telescopic rod 301. Therefore, when the connecting sleeve 303 rotates, the clamping block 308 and the horizontal plate 309 remain stationary and rotate relative to the connecting sleeve 303. Therefore, during the welding and lifting of the welder 7, the rotation of the connecting sleeve 303 will slide and scrape the clamping block 308, the horizontal plate 309 and the scraper 310, so that the welding slag generated by the laser welding is scraped off the connecting sleeve 303. After falling, the air flows outward between the fixed plates 307, realizing automatic discharge of the welding slag, avoiding accumulation of too much welding slag on the connecting sleeve 303, and causing the welding precision to drop when the welding slag falls and contacts the welder 7 during laser cutting.

[0048] Example three: please refer to Figures 1-12 On the basis of example one and example two, the application provides a technical solution: the opening and closing mechanism 4 includes a scraping strip 401, one side of the scraping strip 401 is fixedly connected with a sliding block 405, and the outer wall of the sliding block 405 is in sliding connection with the inner wall of the arc-shaped groove 302.

[0049] The scraping strip 401 is fixedly connected with a sliding plate 402 on one side, the sliding plate 402 is slidably connected with a sliding sleeve A 403 on the outer wall, and the sliding sleeve A 403 is slidably connected with a sliding sleeve B 404 on the outer wall.

[0050] The sliding sleeve B 404 is fixedly connected with the blade 312 on one side, and the sliding plate 402, the sliding sleeve A 403 and the sliding sleeve B 404 are used to cover and open the arc-shaped groove 302.

[0051] The sliding plate 402, the sliding sleeve A 403 and the sliding sleeve B 404 are all arc-shaped plate structures, and the fixed plate 307 is a square plate structure.

[0052] When the welding device 7 is lowered for welding, the connecting sleeve 303 rotates, and the scraping strip 401 slides in the opposite direction of the rotation of the connecting sleeve 303 due to inertia. When the welding head at the bottom of the welding device 7 abuts against the metal plate for welding, the connecting sleeve 303 rotates and quickly stops, and the scraping strip 401 starts to slide in the direction of the rotation of the connecting sleeve 303 due to the inertia of being driven to rotate, and the scraping strip 401 slides in the arc-shaped groove 302 and shrinks the sliding plate 402 and the sliding sleeve A 403 and the sliding sleeve B 404, so as to open the arc-shaped groove 302 and perform subsequent laser welding work, so that the arc-shaped groove 302 is quickly opened during laser welding work, so that the connecting sleeve 303 quickly exchanges heat with the air, the connecting sleeve 303 is quickly cooled at this time, the problem of the connecting sleeve 303 being too high in temperature is prevented, and the connecting sleeve 303 is reversely rotated during the lifting of the welding device 7 after the laser welding is completed, so that the scraping strip 401 reversely slides in the arc-shaped groove 302 in the connecting sleeve 303 due to inertia, and the sliding plate 402, the sliding sleeve A 403 and the sliding sleeve B 404 are extended to close the arc-shaped groove 302, so as to heat the connecting sleeve 303 to a certain extent, so that the connecting sleeve 303 can quickly heat the surface of the metal plate during the next lowering for welding, the problem of too large temperature difference during welding is reduced, the heat dissipation and heat preservation of the connecting sleeve 303 are effectively utilized, and the temperature difference of the metal plate is reduced as much as possible.

[0053] During welding, the open arc-shaped groove 302 provides a certain discharge space for the welding slag generated and ejected outward, so as to avoid accumulation of the welding slag on the connecting sleeve 303, and when the scraping strip 401 slides in the inner wall of the arc-shaped groove 302, the laser welding machine 1 embedded in the arc-shaped groove 302 further scrapes off the residue in the arc-shaped groove 302, so as to prevent the residue from being solidified in the arc-shaped groove 302 and causing blockage during ventilation and heat dissipation.

[0054] The above merely describes preferred embodiments of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art can make equivalent replacements or changes within the technical scope disclosed by the present application and according to the technical solutions and inventive concept of the present application, which should be covered within the protection scope of the present application.

Claims

1. A tool fixture for laser welding of automobile parts, comprising a laser welding machine (1), the top of the laser welding machine (1) is provided with an electric sliding machine A (2), the top of the electric sliding machine A (2) is provided with an electric sliding machine B (5), characterized in that: The electric sliding machine B (5) is provided with an elevator (6) on one side, the elevator (6) is provided with a welder (7) on one side, and the welder (7) is provided with a heat dissipation mechanism (3) at the bottom; The heat dissipation mechanism (3) comprises: A telescopic rod (301) is fixedly connected at the top of the welder (7) and at the bottom of the telescopic rod (301), a clamping block (308) is fixedly connected at the bottom of the telescopic rod (301), a connecting ring (311) is slidably connected to the inner wall of the clamping block (308), and a built-in spring is arranged in the telescopic rod (301), wherein the telescopic rod (301) is used to push the connecting ring (311) down by the built-in spring; A connecting sleeve (303) is provided, which is a hollow sleeve structure in the shape of a circular truncated cone, an arc-shaped groove (302) is formed in the inner wall of the connecting sleeve (303), the arc-shaped groove (302) is used for ventilation, a rotating ball A (304) is rotatably connected to the top of the connecting sleeve (303), a hinged rod (305) is fixedly connected to the top of the rotating ball A (304), a rotating ball B (306) is fixedly connected to one end of the hinged rod (305), the outer wall of the rotating ball B (306) is rotatably connected to the bottom of the welder (7), the inner wall of the connecting ring (311) is fixedly connected to the outer wall of the connecting sleeve (303), and the connecting sleeve (303) is used for heat absorption of the metal plate. The outer wall of the connecting sleeve (303) is fixedly connected with a blade (312), and the bottom of the connecting sleeve (303) is fixedly connected with a fixed plate (307), and the space is formed between each fixed plate (307).

2. A fixture clamp for laser welding of automobile parts as claimed in claim 1, wherein: The clamping block (308) is fixedly connected with a horizontal plate (309) on one side, the horizontal plate (309) is fixedly connected with a scraper (310) at the bottom, and the scraper (310) is slidably connected with the inner wall of the connecting sleeve (303) on one side.

3. The fixture clamp for laser welding of automobile parts as claimed in claim 2 wherein: The blade (312) is inclined, the arc-shaped groove (302) is an arc-shaped groove, and the outer wall of the connecting sleeve (303) is provided with an opening and closing mechanism (4).

4. The fixture clamp for laser welding of an automobile part according to claim 3, wherein: The opening and closing mechanism (4) comprises a scraping strip (401), the scraping strip (401) is fixedly connected with a sliding block (405) on one side, and the outer wall of the sliding block (405) is slidably connected with the inner wall of the arc-shaped groove (302).

5. The fixture clamp for laser welding of automobile parts as claimed in claim 4 wherein: The scraping strip (401) is fixedly connected with a sliding plate (402) on one side, the outer wall of the sliding plate (402) is slidably connected with a sliding sleeve A (403), and the outer wall of the sliding sleeve A (403) is slidably connected with a sliding sleeve B (404).

6. A fixture clamp for laser welding of automobile parts as claimed in claim 5 wherein: The sliding sleeve B (404) is fixedly connected with the blade (312) on one side, and the sliding plate (402), the sliding sleeve A (403) and the sliding sleeve B (404) are used to cover and open the arc-shaped groove (302).

7. A fixture clamp for laser welding of automobile parts as claimed in claim 6 wherein: The sliding plate (402), the sliding sleeve A (403) and the sliding sleeve B (404) are all arc-shaped plate structures, and the fixed plate (307) is a square plate structure.

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