Laser welding device for stainless steel product machining

Abstract

Laser welding equipment for stainless steel product machining comprises a working frame, a positioning mechanism is arranged on the working frame, the positioning mechanism is used for oppositely clamping stainless steel products in four directions, a conveying mechanism is arranged below the positioning mechanism, and the conveying mechanism is used for completing feeding and discharging of the stainless steel products. The welding mechanism is arranged on the side edge of the conveying mechanism, the specific position of a welding point can be flexibly adjusted through the welding mechanism, and the welding device is suitable for various sizes. Stainless steel products with various diameters can be longitudinally positioned and adjusted through the positioning device, and the angle of the contact surface between the roller and the stainless steel product can be adjusted, so that clamping and positioning are more stable.

Description

Technical Field

[0001] The present invention relates to the technical field of workpiece welding, and in particular to laser welding equipment for processing stainless steel products. Background Art

[0002] Laser welding is a highly efficient and precise welding method that utilizes a high-energy-density laser beam as a heat source. Laser welding is a key application of laser material processing technology. In the 1970s, it was primarily used for welding thin-walled materials and low-speed welding. The welding process is heat-conduction-based, meaning that laser radiation heats the workpiece surface, which then diffuses inward through heat conduction. By controlling parameters such as the laser pulse width, energy, peak power, and repetition rate, the workpiece is melted, forming a specific molten pool. Due to its unique advantages, it has been successfully applied to the precision welding of micro and small parts. Existing technologies for welding stainless steel products mostly rely on handheld or manual workpiece loading, preventing automated loading and welding of stainless steel products. This results in low welding efficiency and, in addition, inaccuracies in the weld positioning process. Summary of the Invention

[0003] In response to the above technical problems, the technical solution adopted by the present invention is: a laser welding device for processing stainless steel products, including a workbench, a positioning mechanism is provided on the workbench, the positioning mechanism is used to perform relative clamping processing on the stainless steel products in four directions, a conveying mechanism is provided below the positioning mechanism, the conveying mechanism is used to complete the feeding and unloading of stainless steel products, and a welding mechanism is provided on the side of the conveying mechanism, the welding mechanism can flexibly adjust the specific position of the welding point and is suitable for a variety of sizes.

[0004] Furthermore, the positioning mechanism includes an auxiliary slide I and an auxiliary slide II fixedly mounted on the working frame, a shock-absorbing spring is provided inside the auxiliary slide II, an auxiliary rod is fixedly mounted below the auxiliary slide II, a sliding block is slidably mounted on the auxiliary slide II, an upper clamping frame is fixedly mounted on the side of the sliding block, a sliding block is slidably mounted below the auxiliary slide I, and a lower clamping frame is fixedly mounted on the side of the sliding block.

[0005] Furthermore, multiple groups of pushing cylinders are provided inside the lower clamping frame, and spring parts I are fixedly installed on both sides of the lower clamping frame, and a movable plate is rotatably installed on the spring part I, and a roller is provided on the movable plate. Multiple groups of elastic components I are provided below the lower clamping frame, and multiple elastic components II are fixedly installed on both sides of the upper clamping frame. Two groups of grooves are provided above the upper clamping frame, and return springs are fixedly installed on the grooves. An upper movable plate is provided on the return spring, and a first motor is fixedly installed on the upper movable plate. A rotating shaft is rotatably installed on the movable end of the first motor, and a rotating roller is fixedly installed on the rotating shaft. An upper clamping side plate is fixedly installed on the upper clamping frame, and an upper clamping rack is fixedly installed on the upper clamping side plate. A lower clamping side plate is fixedly installed on the lower clamping frame, and a lower clamping rack is fixedly installed on the lower clamping side plate.

[0006] Furthermore, a clamping plate is fixedly installed on the workbench, a second motor is fixedly installed on the clamping plate, a main shaft is rotatably installed on the movable end of the second motor, a pinion is fixedly installed on the top end of the main shaft, the pinion is meshed with the upper clamping rack and the lower clamping rack, a clamping gear is fixedly installed at the rear of the main shaft, a slide groove I and a slide groove II are provided on the clamping plate, a right clamping slider is slidably installed on the slide groove I, a left clamping slider is slidably installed on the slide groove II, a transverse rack I is fixedly installed on the left clamping slider, a transverse rack II is fixedly installed on the right clamping slider, and the clamping gear is meshed with the transverse rack I and the transverse rack II.

[0007] Furthermore, a limiting mechanism is provided on both the right clamping slider and the left clamping slider, and the limiting mechanism includes a third motor fixed on the left clamping slider, the movable end of the third motor is rotatably installed with a pushing shaft, a missing gear is fixedly installed on the pushing shaft, a limiting shaft is rotatably installed on the side of the pushing shaft, a limiting gear is fixedly installed on the limiting shaft, a clamping baffle is fixedly installed on the front end of the limiting gear, and a grinding wheel is provided on the top of the clamping baffle.

[0008] Furthermore, the conveying mechanism includes a conveying frame I, a conveying frame II and a conveying frame III fixedly mounted on the working frame, a fourth motor fixedly mounted on the conveying frame II, a synchronous rotating shaft I rotatably mounted on the movable end of the fourth motor, and a synchronous rotating shaft II rotatably mounted on the other end of the conveying frame II, and a conveyor belt is wrapped around the outside of the synchronous rotating shaft I and the synchronous rotating shaft II.

[0009] Furthermore, a transmission shaft I is provided on the conveying frame I, and a transmission shaft II is provided on the conveying frame III. The transmission shaft I and the synchronous shaft I are wrapped with a synchronous pulley I, and the synchronous shaft II and the transmission shaft II are wrapped with a synchronous pulley II.

[0010] Furthermore, the welding mechanism includes a welding support frame fixedly mounted on the workbench, a fifth motor fixedly mounted on the welding support frame, a screw rotatably mounted on the movable end of the fifth motor, a moving block slidably mounted on the screw, and a welding gun rotatably mounted on the moving block.

[0011] Compared with the prior art, the present invention has the following advantages: (1) the present invention sets a limiting mechanism, which drives the limiting gear to rotate by utilizing the missing gear to rotate, firstly, it does not affect the normal transportation of stainless steel products, and secondly, after the stainless steel products are transported, the limiting gear is rotated by the missing gear and then adjusted to the center position, which is convenient for the subsequent lateral limitation of the stainless steel products. At the same time, a grinding wheel is provided on the limiting device, and auxiliary grinding can be performed on the two sets of edges while the stainless steel products are rotated; (2) the positioning device set by the present invention can not only perform longitudinal positioning adjustment for stainless steel products of various diameters, but also adjust the angle of the contact surface between the roller and the stainless steel products, so that the clamping positioning is more secure, and the present invention can meet the requirements of the simultaneous lateral and longitudinal positioning of stainless steel products; (3) the welding device set by the present invention can arbitrarily adjust the position of the specific welding point, and can also smoothly weld two groups of stainless steel products of different lengths. Secondly, during welding, the first motor drives the rotating roller to rotate, thereby completing the rotary welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 The overall structure of the present invention is shown in FIG. Figure 1 .

[0013] Figure 2 The overall structure of the present invention is shown in FIG. Figure 2 .

[0014] Figure 3 Schematic diagram of the positioning mechanism structure of the present invention Figure 1 .

[0015] Figure 4 for Figure 3 Schematic diagram of the EE section.

[0016] Figure 5 It is a schematic diagram of the structure of the clamping frame of the present invention.

[0017] Figure 6 for Figure 5 Schematic diagram of the mid-DD section.

[0018] Figure 7 for Figure 5 Schematic diagram of the AA section.

[0019] Figure 8 Schematic diagram of the positioning mechanism structure of the present invention Figure 2 .

[0020] Figure 9for Figure 8 A partial enlarged view.

[0021] Figure 10 This is a schematic diagram of the auxiliary slide structure of the present invention.

[0022] Figure 11 Schematic diagram of the conveying mechanism structure of the present invention Figure 1 .

[0023] Figure 12 Schematic diagram of the conveying mechanism structure of the present invention Figure 2 .

[0024] Figure 1: 101-working frame; 201-lower clamping frame; 202-upper clamping frame; 203-sliding block; 204-pushing cylinder; 205-spring member I; 206-movable plate; 207-roller; 208-elastic component I; 209-elastic component II; 210-upper movable plate; 211-reset spring; 212-rotating shaft; 213-rotating roller; 214-groove; 215-first motor; 216-upper clamping side plate; 217-lower clamping side plate; 301-auxiliary slide I; 302-auxiliary slide II; 303-shock-absorbing spring; 304-auxiliary rod; 305-sliding plate; 306-clamping fixed plate; 307-spindle; 308-second motor; 309-pinion; 310-upper clamping rack; 311- Lower clamping rack; 312-clamping gear; 313-slideway I; 314-slideway II; 315-right clamping slider; 316-left clamping slider; 401-third motor; 402-driving shaft; 403-missing gear; 404-limiting shaft; 405-clamping baffle; 406-limiting gear; 407-grinding wheel; 501-fourth motor; 502-conveyor rack I; 503-conveyor rack II; 504-conveyor rack III; 505-transmission shaft I; 506-synchronizing shaft I; 507-synchronizing shaft II; 508-transmission shaft II; 509-conveyor belt; 510-synchronizing pulley I; 511-synchronizing pulley II; 601-fifth motor; 602-welding support frame; 603-screw; 604-moving block; 605-welding gun. DETAILED DESCRIPTION

[0025] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings.

[0026] Example: Reference Figures 1-12A laser welding device for processing stainless steel products includes a workbench 101. A positioning mechanism is provided on the workbench 101. The positioning mechanism is used to relatively clamp the stainless steel products in four directions. A conveying mechanism is provided below the positioning mechanism. The conveying mechanism is used to complete the feeding and unloading of stainless steel products. A welding mechanism is provided on the side of the conveying mechanism. The welding mechanism can flexibly adjust the specific position of the welding point and is suitable for a variety of sizes.

[0027] like Figures 1-11 As shown, the positioning mechanism includes an auxiliary slide I 301 and an auxiliary slide II 302 fixedly mounted on the workbench 101, a shock-absorbing spring 303 is provided inside the auxiliary slide II 302, an auxiliary rod 304 is fixedly mounted below the auxiliary slide II 302, a sliding block 203 is slidably mounted on the auxiliary slide II 302, an upper clamping frame 202 is fixedly mounted on the side of the sliding block 203, a sliding block is slidably mounted below the auxiliary slide I 301, and a lower clamping frame 201 is fixedly mounted on the side of the sliding block.

[0028] like Figures 1-8 As shown, multiple groups of pushing cylinders 204 are provided inside the lower clamping frame 201, spring members I 205 are fixedly installed on both sides of the lower clamping frame 201, a movable plate 206 is rotatably installed on the spring member I 205, and a roller 207 is provided on the movable plate 206. Multiple groups of elastic components I 208 are provided below the lower clamping frame 201, and multiple elastic components II 209 are fixedly installed on both sides of the upper clamping frame 202. Two groups of grooves 214 are provided above the upper clamping frame 202, and a return spring 211 is fixedly installed on the groove 214. An upper movable plate 210 is provided on the return spring 211, and a first motor 215 is fixedly installed on the upper movable plate 210. A rotating shaft 212 is rotatably installed on the movable end of the first motor 215, and a rotating roller 213 is fixedly installed on the rotating shaft 212. An upper clamping side plate 216 is fixedly installed on the upper clamping side plate 216, and an upper clamping rack 310 is fixedly installed on the upper clamping side plate 216. A lower clamping side plate 217 is fixedly installed on the lower clamping frame 201, and a lower clamping rack 311 is fixedly installed on the lower clamping side plate 217.

[0029] like Figures 1-12As shown, a clamping plate 306 is fixedly mounted on the workbench 101, a second motor 308 is fixedly mounted on the clamping plate 306, a main shaft 307 is rotatably mounted on the movable end of the second motor 308, a pinion 309 is fixedly mounted on the top end of the main shaft 307, the pinion 309 is meshed with the upper clamping rack 310 and the lower clamping rack 311, a clamping gear 312 is fixedly mounted on the rear of the main shaft 307, a slide groove I 313 and a slide groove II 314 are provided on the clamping plate 306, a right clamping slider 315 is slidably mounted on the slide groove I 313, a left clamping slider 316 is slidably mounted on the slide groove II 314, a transverse rack I is fixedly mounted on the left clamping slider 316, a transverse rack II is fixedly mounted on the right clamping slider 315, and the clamping gear 312 is meshed with the transverse rack I and the transverse rack II.

[0030] When the stainless steel product enters the positioning mechanism, the cylinder 204 is first pushed forward, so that the angle of the movable plate 206 is adjusted, so that the multiple groups of rollers 207 and the stainless steel product are more closely clamped. At the same time, the elastic components I 208 and the elastic components I II 209 adjust themselves according to the size of the stainless steel product. Then, the second motor 308 is started, and the second motor 308 drives the main shaft 307 to rotate. The rotation of the main shaft 307 drives the pinion 309 to rotate. The rotation of the pinion 309 drives the upper clamping rack 310 and the lower clamping rack 311 to rotate relative to each other, thereby driving the lower clamping frame 201 and the upper clamping frame 202 to slide toward the center, thereby completing the longitudinal clamping and positioning of the stainless steel product. When the main shaft 307 rotates, the clamping gear 312 is driven to rotate. The rotation of the clamping gear 312 drives the relative rotation of the transverse rack I and the transverse rack II, thereby allowing the right clamping slider 315 and the left clamping slider 316 to slide relative to each other, thereby completing the transverse clamping and positioning of the stainless steel product.

[0031] like Figures 8-10 As shown, a limiting mechanism is provided on both the right clamping slider 315 and the left clamping slider 316, and the limiting mechanism includes a third motor 401 fixedly pressed on the left clamping slider 316, and the movable end of the third motor 401 is rotatably mounted with a pushing shaft 402, and a missing gear 403 is fixedly mounted on the pushing shaft 402, and a limiting shaft 404 is rotatably mounted on the side of the pushing shaft 402, and a limiting gear 406 is fixedly mounted on the limiting shaft 404, and a clamping baffle 405 is fixedly mounted on the front end of the limiting gear 406, and a grinding wheel 407 is provided on the top of the clamping baffle 405.

[0032] Before clamping the stainless steel, start the third motor 401 first. The third motor 401 drives the rotating shaft 402 to rotate. The rotating shaft 402 rotates to drive the missing gear 403 to rotate. The missing gear 403 drives the limiting gear 406 to rotate. The limiting gear 406 rotates to drive the clamping baffle 405 to rotate downward. At the same time, the limiting mechanism on the right clamping slider 315 completes the upward rotation, thereby limiting the stainless steel product laterally.

[0033] like Figure 11-12 As shown, the conveying mechanism includes a conveying frame I 502, a conveying frame II 503 and a conveying frame III 504 fixedly mounted on the working frame 101, a fourth motor 501 is fixedly mounted on the conveying frame II 503, a synchronous rotating shaft I 506 is rotatably mounted on the movable end of the fourth motor 501, and a synchronous rotating shaft II 507 is rotatably mounted on the other end of the conveying frame II 503, and a conveyor belt 509 is wrapped around the outside of the synchronous rotating shaft I 506 and the synchronous rotating shaft II 507.

[0034] The conveying frame I502 is provided with a transmission shaft I505, and the conveying frame III504 is provided with a transmission shaft II508. The transmission shaft I505 and the synchronous shaft I506 are wrapped with a synchronous pulley I510 on the outside, and the synchronous shaft II507 and the transmission shaft II508 are wrapped with a synchronous pulley II511 on the outside.

[0035] The stainless steel products are placed in the conveying mechanism, and the fourth motor 501 is started. The fourth motor 501 drives the synchronous shaft I 506 to rotate, and the synchronous shaft I 506 drives the synchronous shaft 507 to rotate through the conveyor belt 509. At the same time, the synchronous shaft I 506 drives the transmission shaft I 505 to rotate through the synchronous pulley I 510, and 507 drives the transmission shaft II 508 to rotate through the synchronous pulley II 511, thereby completing the sequential transportation of the stainless steel products.

[0036] The welding mechanism includes a welding support frame 602 fixedly mounted on the work frame 101, a fifth motor 601 fixedly mounted on the welding support frame 602, a screw 603 rotatably mounted on the movable end of the fifth motor 601, a moving block 604 slidably mounted on the screw 603, and a welding gun 605 rotatably mounted on the moving block 604.

[0037] The fifth motor 601 drives the lead screw 603 to rotate, and the rotation of the lead screw 603 drives the moving block 604 to slide, so that the position of the welding point can be adjusted arbitrarily according to the diameter of the stainless steel product to complete the welding.

[0038] The working principle of the laser welding equipment for processing stainless steel products disclosed in the present invention is as follows: the stainless steel products are placed in the conveying mechanism, and the fourth motor 501 is started. The fourth motor 501 drives the synchronous rotating shaft I 506 to rotate, and the synchronous rotating shaft I 506 drives the synchronous rotating shaft 507 to rotate through the conveyor belt 509. At the same time, the synchronous rotating shaft I 506 drives the transmission rotating shaft I 505 to rotate through the synchronous pulley I 510, and 507 drives the transmission rotating shaft II 508 to rotate through the synchronous pulley II 511. After the stainless steel products are transported in sequence; the third motor 401 is started first, The third motor 401 drives the rotating shaft 402 to rotate, and the rotating shaft 402 rotates to drive the missing gear 403 to rotate, and the missing gear 403 drives the limiting gear 406 to rotate, and the limiting gear 406 rotates to drive the clamping baffle 405 to rotate downward. At the same time, the limiting mechanism on the right clamping slider 315 completes the upward rotation, thereby limiting the stainless steel product laterally. When the stainless steel product enters the positioning mechanism, it is first pushed forward by pushing the cylinder 204, so that the movable plate 206 adjusts the angle, allowing the multiple sets of rollers 207 to fit more closely with the stainless steel product. For clamping, the elastic components I 208 and I and II 209 adjust themselves according to the size of the stainless steel product. Then, by starting the second motor 308, the second motor 308 drives the main shaft 307 to rotate. The rotation of the main shaft 307 drives the pinion 309 to rotate. The rotation of the pinion 309 drives the upper clamping rack 310 and the lower clamping rack 311 to rotate relative to each other, thereby driving the lower clamping frame 201 and the upper clamping frame 202 to slide toward the center. When the main shaft 307 rotates, the clamping gear 312 is driven to rotate. The clamping gear 312 rotates to drive the horizontal rack I and the relative rotation of the transverse rack II, so that the right clamping slider 315 and the left clamping slider 316 slide relative to each other, thereby completing the longitudinal and transverse clamping positioning of the stainless steel product; finally, the fifth motor 601 is started to drive the screw 603 to rotate, and the rotation of the screw 603 drives the moving block 604 to slide, thereby driving the welding gun 605 to move, so that the position of the welding point can be adjusted at will according to the diameter of the stainless steel product. When welding starts, the first motor 215 is started, and the first motor 215 drives the rotating roller 213 to rotate, thereby driving the stainless steel product to rotate and weld.

Claims

1. A laser welding device for processing stainless steel products, comprising a work frame (101), characterized in that: A positioning mechanism is provided on the work frame (101), and the positioning mechanism is used for relatively clamping the stainless steel product in four directions. A conveying mechanism is provided below the positioning mechanism, and the conveying mechanism is used for completing the feeding and unloading of the stainless steel product. A welding mechanism is provided on the side of the conveying mechanism, and the welding mechanism can flexibly adjust the specific position of the welding point and is suitable for various sizes.

2. The laser welding equipment for processing stainless steel products according to claim 1, characterized in that: The positioning mechanism comprises an auxiliary slide I (301) and an auxiliary slide II (302) fixedly mounted on a working frame (101), a shock-absorbing spring (303) being provided inside the auxiliary slide II (302), an auxiliary rod (304) being fixedly mounted below the auxiliary slide II (302), a sliding block (203) being slidably mounted on the auxiliary slide II (302), an upper clamping frame (202) being fixedly mounted on the side of the sliding block (203), a sliding block being slidably mounted below the auxiliary slide I (301), and a lower clamping frame (201) being fixedly mounted on the side of the sliding block.

3. The laser welding equipment for processing stainless steel products according to claim 2, characterized in that: The lower clamping frame (201) is provided with multiple groups of pushing cylinders (204) inside, and spring members I (205) are fixedly installed on both sides of the lower clamping frame (201), and a movable plate (206) is rotatably installed on the spring member I (205), and a roller (207) is provided on the movable plate (206). Multiple groups of elastic components I (208) are provided below the lower clamping frame (201), and multiple elastic components II (209) are fixedly installed on both sides of the upper clamping frame (202). Two groups of grooves (214) are provided above the upper clamping frame (202), and a return spring (211) is fixedly installed on the groove (214). An upper movable plate (210) is provided on the return spring (211), a first motor (215) is fixedly mounted on the upper movable plate (210), a rotating shaft (212) is rotatably mounted on the movable end of the first motor (215), a rotating roller (213) is fixedly mounted on the rotating shaft (212), an upper clamping side plate (216) is fixedly mounted on the upper clamping side plate (216), an upper clamping rack (310) is fixedly mounted on the upper clamping side plate (216), a lower clamping side plate (217) is fixedly mounted on the lower clamping side plate (217), and a lower clamping rack (311) is fixedly mounted on the lower clamping side plate (217).

4. The laser welding equipment for processing stainless steel products according to claim 2, characterized in that: A clamping plate (306) is fixedly mounted on the work frame (101), a second motor (308) is fixedly mounted on the clamping plate (306), a main shaft (307) is rotatably mounted on the movable end of the second motor (308), a pinion (309) is fixedly mounted on the top end of the main shaft (307), the pinion (309) is meshed with the upper clamping rack (310) and the lower clamping rack (311), and a clamping gear (309) is fixedly mounted on the rear of the main shaft (307). 12), a slide groove I (313) and a slide groove II (314) are provided on the clamping fixed plate (306), a right clamping slider (315) is slidably mounted on the slide groove I (313), a left clamping slider (316) is slidably mounted on the slide groove II (314), a transverse rack I is fixedly mounted on the left clamping slider (316), a transverse rack II is fixedly mounted on the right clamping slider (315), and the clamping gear (312) is engaged with the transverse rack I and the transverse rack II.

5. The laser welding equipment for processing stainless steel products according to claim 4, characterized in that: A limiting mechanism is provided on both the right clamping slider (315) and the left clamping slider (316), and the limiting mechanism includes a third motor (401) fixedly pressed on the left clamping slider (316), a driving shaft (402) is rotatably mounted on the movable end of the third motor (401), a missing gear (403) is fixedly mounted on the driving shaft (402), a limiting shaft (404) is rotatably mounted on the side of the driving shaft (402), a limiting gear (406) is fixedly mounted on the limiting shaft (404), a clamping baffle (405) is fixedly mounted on the front end of the limiting gear (406), and a grinding wheel (407) is provided on the top end of the clamping baffle (405).

6. The laser welding equipment for processing stainless steel products according to claim 1, characterized in that: The conveying mechanism includes a conveying frame I (502), a conveying frame II (503) and a conveying frame III (504) fixedly mounted on a working frame (101), a fourth motor (501) fixedly mounted on the conveying frame II (503), a synchronous rotating shaft I (506) rotatably mounted on the movable end of the fourth motor (501), a synchronous rotating shaft II (507) rotatably mounted on the other end of the conveying frame II (503), and a conveyor belt (509) wound around the outside of the synchronous rotating shaft I (506) and the synchronous rotating shaft II (507).

7. The laser welding equipment for processing stainless steel products according to claim 6, characterized in that: The conveying frame I (502) is provided with a transmission shaft I (505), and the conveying frame III (504) is provided with a transmission shaft II (508). The transmission shaft I (505) and the synchronous shaft I (506) are externally wound with a synchronous pulley I (510), and the synchronous shaft II (507) and the transmission shaft II (508) are externally wound with a synchronous pulley II (511).

8. The laser welding equipment for processing stainless steel products according to claim 1, characterized in that: The welding mechanism comprises a welding support frame (602) fixedly mounted on a work frame (101), a fifth motor (601) fixedly mounted on the welding support frame (602), a lead screw (603) rotatably mounted on the movable end of the fifth motor (601), a moving block (604) slidably mounted on the lead screw (603), and a welding gun (605) rotatably mounted on the moving block (604).

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