Automatic positioning laser welding device

Abstract

The invention belongs to the technical field of laser welding equipment accessory devices, and particularly relates to an automatic positioning laser welding device which comprises a rotating mechanism, an adjusting device, a clamping mechanism and a shielding device. The rotating mechanism is arranged at the upper end of the base (1), and the adjusting device is arranged on the upper surface of a worm gear (303) of the rotating mechanism; a plurality of sliding grooves (201) are formed in the adjusting device, the extending directions of the sliding grooves (201) all pass through the center point of an adjusting block (404) of the adjusting device, the surface of the adjusting block (404) is divided into a plurality of uniform parts, and the clamping mechanisms matched with the sliding grooves (201) in number penetrate through the corresponding sliding grooves (201) respectively so as to be connected with the adjusting device in a sliding mode. A vertical long groove (202) is formed in a supporting arm (304) of the rotating mechanism, and the shielding device is arranged on the long groove (202) and further connected with the rotating mechanism in a sliding mode. The welding precision and the working efficiency of equipment can be improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of auxiliary devices for laser welding equipment, and particularly relates to an automatic positioning laser welding device. Background Art

[0002] Laser welding is a precision welding method that uses a laser beam with a high energy density as a heat source. This method generates highly concentrated heat energy in a very small area by focusing the laser beam, thereby quickly heating and melting the materials to be welded. Laser welding technology can precisely control parameters such as the width, energy, peak power, and repetition frequency of laser pulses, enabling the materials to melt to form a molten pool, which forms a firm weld seam after cooling. The laser beam can be focused to a very small diameter, making laser welding very suitable for precision welding of micro and small parts. Compared with traditional welding methods, laser welding is faster and improves production efficiency. The most common existing laser welding equipment is a laser welder, which is a device used for laser welding of workpieces during industrial production and has been widely used in the industrial production field.

[0003] When the existing laser welder is in use, it is first placed in an appropriate position, and the laser emitter of the laser welding emits laser. The welding rod is placed at an oblique angle to the laser to heat and weld. It has been found during the use of the existing laser welder that although the laser welding has high precision, the workpieces are mostly placed manually during processing, resulting in low welding precision of the equipment and thus low working efficiency of the equipment. Summary of the Invention

[0004] (1) Technical Problems to be Solved

[0005] The technical problem to be solved by the present invention is: how to provide an automatic positioning laser welding device that improves the welding precision of the equipment by automatically calibrating the workpiece, and further improves the working efficiency of the equipment.

[0006] (2) Technical Solutions

[0007] To solve the above technical problems, the present invention provides an automatic positioning laser welding device. The welding device is installed on a base (1), and the welding device includes a rotating mechanism, an adjusting device, a clamping mechanism, and a shielding device;

[0008] The rotating mechanism is arranged at the upper end of the base (1), and the adjusting device is arranged on the upper surface of the worm wheel (303) of the rotating mechanism; multiple sliding grooves (201) are arranged on the adjusting device. The extending directions of the multiple sliding grooves (201) all pass through the center point of the adjusting block (404) of the adjusting device, and divide the surface of the adjusting block (404) into several uniform parts. The clamping mechanisms corresponding to the number of the sliding grooves (201) respectively pass through a corresponding sliding groove (201), and thus are slidably connected to the adjusting device;

[0009] A vertical long groove (202) is provided on the support arm (304) of the rotating mechanism, and the shielding device is arranged on the long groove (202), and thus is slidably connected to the rotating mechanism.

[0010] During the welding process of the workpiece, the rotating mechanism is started to rotate for lateral adjustment, and the adjusting device is cooperated for vertical adjustment, so as to change the angle and position of the workpiece. Different workpieces are adaptively clamped by the clamping mechanism. During this process, the height is adjusted and shielding is carried out by the shielding device.

[0011] The rotating mechanism includes a worm (301), a servo motor (302), a worm wheel (303), a support arm (304), a welding machine (305) and a signal sensor (306). The disk-shaped worm wheel (303) is rotatably connected to the top end of the base (1). A pair of mounting seats (307) are additionally arranged on the base (1). Both ends of the worm (301) pass through the two mounting seats (307) and are then connected to the base (1). The worm (301) meshes with the worm wheel (303). The servo motor (302) is connected to the power input end of the worm (301);

[0012] On the base (1), at the opposite position to the position where the mounting seats (307) are arranged, a support arm (304) is vertically arranged. The upper ends of the support arms (304) are respectively connected to the welding machine (305) and the signal sensor (306).

[0013] The adjusting device includes an electric push rod (401), a connecting rod (402), a supporting rod (403) and an adjusting block (404). Hinge seats are arranged on both the worm wheel (303) and the first connection end of the connecting rod (402). Both ends of the electric push rod (401) pass through the corresponding hinge seats and are rotatably connected to the connecting rod (402) and the worm wheel (303). The supporting rod (403) is arranged at the central part of the top end of the worm wheel (303). A supporting groove (406) with a size matching the size of the upper surface of the supporting rod (403) is provided on the lower surface of the adjusting block (404). The upper end surface of the supporting rod (403) is embedded into the supporting groove (406), and thus is rotatably connected to the adjusting block (404). The second connection end of the connecting rod (402) is connected to the adjusting block (404).

[0014] Among them, the clamping mechanism includes a slider (501), a bolt (502), a screw rod (503) and a top block (504). Multiple groups of sliders (501) respectively pass through the corresponding sliding grooves (201) and are slidably connected to the adjusting block (404). A threaded hole (505) is provided on the slider (501). Multiple groups of bolts (502) respectively pass through the corresponding threaded holes (505) and are threadedly connected to the slider (501). By tightening and loosening the bolt (502), the adjustment and fixation of the corresponding position of the slider (501) on the sliding groove (201) are realized;

[0015] Threaded holes (506) are provided on each group of sliders (501) along the extending direction of the sliding groove (201). Each group of screw rods (503) respectively pass through the corresponding threaded holes (506) and are threadedly connected to the corresponding sliders (501). A top block (504) is respectively arranged at the end of each screw rod (503).

[0016] Among them, the number of the sliding grooves (201) and the clamping mechanism is 4 each.

[0017] Among them, the shielding device includes a lifting strip (601), a turning knob (602), a baffle plate (603) and a support rod (604). The lifting strip (601) is arranged on the vertical long groove (202) of the support arm (304) to form a vertical relative sliding relationship with the support arm (304). A turning hole (605) is provided on the lifting strip (601). Multiple groups of turning knobs (602) respectively pass through the corresponding turning holes (605) and are threadedly connected to the lifting strip (601). By tightening and loosening the turning knob (602), the adjustment and fixation of the corresponding position of the lifting strip (601) on the long groove (202) are realized; Positioning seats are provided on both the lifting strip (601) and the baffle plate (603). Two ends of the support rod (604) respectively pass through the corresponding positioning seats, so that the support rod (604) is respectively rotatably connected to the lifting strip (601) and the baffle plate (603).

[0018] Among them, the welding device further includes a handle (7). A connecting seat (8) is provided on the support arm (304). The handle (7) passes through the connecting seat (8) and is rotatably connected to the support arm (304).

[0019] Among them, the welding device further includes rubber pads (9). Multiple groups of rubber pads (9) are evenly installed on the corresponding top blocks (504).

[0020] Among them, the welding device is further provided with friction grooves (10). Multiple groups of friction grooves (10) are evenly arranged at the bottom end of the base (1).

[0021] (III) Beneficial effects

[0022] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0023] During the laser welding process, by starting the rotating device in cooperation with the adjusting device, the workpiece is adjusted in multiple directions to improve the automation level of equipment adjustment;

[0024] The workpiece is clamped by the sliding clamping mechanism, and by means of multi-directional fixing and screw adjustment, the universality of equipment clamping is improved;

[0025] During the laser welding process, the sliding shielding device shields the welding area to improve the safety of equipment processing. Description of the Drawings

[0026] Figure 1 is a schematic structural diagram of the present invention;

[0027] Figure 2 is a schematic connection structure diagram of the base and the worm gear of the present invention;

[0028] Figure 3 is a partial enlarged structural diagram of A of the present invention;

[0029] Figure 4 is a partial enlarged structural diagram of B of the present invention;

[0030] Reference numerals in the drawings: 1, base; 201, chute; 202, long slot; 301, worm; 302, servo motor; 303, worm gear; 304, support arm; 305, welding machine; 306, signal sensor; 307, mounting seat; 401, electric push rod; 402, connecting rod; 403, supporting rod; 404, adjusting block; 405, hinge seat; 406, supporting groove; 501, slider; 502, bolt; 503, screw; 504, top block; 505, screw hole; 506, threaded hole; 601, lifting bar; 602, turning knob; 603, baffle; 604, support bar; 605, turning hole; 606, positioning seat; 7, handle; 8, connecting seat; 9, rubber pad; 10, friction groove. Detailed Description of the Invention

[0031] In order to make the purpose, content, and advantages of the present invention clearer, the following further describes in detail the specific embodiments of the present invention in conjunction with the drawings and embodiments.

[0032] Embodiment 1

[0033] As Figures 1 to 4As shown in the figure, the present invention provides an automatic positioning laser welding device. The welding device is installed on the base 1. The welding device includes a rotating mechanism, an adjusting device, a clamping mechanism, and a shielding device. The rotating mechanism is arranged at the upper end of the base 1, and the adjusting device is arranged on the upper surface of the worm gear 303 of the rotating mechanism. A plurality of sliding grooves 201 are arranged on the adjusting device. The extending directions of the plurality of sliding grooves 201 all pass through the center point of the adjusting block 404 of the adjusting device, and the surface of the adjusting block 404 is divided into several uniform parts. The clamping mechanisms corresponding to the number of the sliding grooves 201 respectively pass through a corresponding sliding groove 201, so as to be slidably connected with the adjusting device. A vertical long groove 202 is arranged on the support arm 304 of the rotating mechanism, and the shielding device is arranged on the long groove 202, and thus is slidably connected with the rotating mechanism. During the welding process of the workpiece, the rotating mechanism is started to rotate for horizontal adjustment, and the adjusting device is cooperated for vertical adjustment, so as to change the angle and position of the workpiece. Different workpieces are adaptively clamped through the clamping mechanism. During this process, the height is adjusted and shielding is carried out through the shielding device, so as to improve the automation level of the welding device, and thus improve the working efficiency of the welding device.

[0034] As a preference of the above embodiment, the rotating mechanism includes a worm 301, a servo motor 302, a worm gear 303, a support arm 304, a welding machine 305, and a signal sensor 306. The disk-shaped worm gear 303 is rotatably connected to the top end of the base 1. A pair of mounting seats 307 are additionally arranged on the base 1. The two ends of the worm 301 pass through the two mounting seats 307 and are then connected to the base 1. The worm 301 is meshed with the worm gear 303. The servo motor 302 is connected to the power input end of the worm 301.

[0035] On the base 1, at the opposite position to the position where the mounting seats 307 are arranged, the support arm 304 is vertically arranged. The upper ends of the support arm 304 are respectively connected to the welding machine 305 and the signal sensor 306. By starting the servo motor 302 to drive the connected worm 301 to rotate, and then driving the worm gear 303 to rotate, the support arm 304 is cooperated to support the welding machine 305, and control is carried out by emitting signals to the signal sensor 306, so as to improve the automation level of the welding device, and thus improve the working efficiency of the welding device.

[0036] As a preference of the above embodiments, the adjusting device includes an electric push rod 401, a connecting rod 402, a supporting rod 403 and an adjusting block 404. Hinge seats are arranged on both the worm gear 303 and the first connection end of the connecting rod 402. Two ends of the electric push rod 401 respectively pass through the corresponding hinge seats and are rotatably connected to the connecting rod 402 and the worm gear 303. The supporting rod 403 is arranged at the central part of the top end of the worm gear 303. A supporting groove 406 with a size matching that of the upper surface of the supporting rod 403 is arranged on the lower surface of the adjusting block 404. The upper end surface of the supporting rod 403 is embedded into the supporting groove 406 and thus rotatably connected to the adjusting block 404. The second connection end of the connecting rod 402 is connected to the adjusting block 404. When the electric push rod 401 is started, it drives the connected connecting rod 402 to rotate around the hinge seat. While the connecting rod 402 rotates, it drives the adjusting block 404 to perform a flipping motion in the vertical plane, so as to perform a flipping motion of the workpiece in the vertical plane in the clamped state, enabling special concave parts of some workpieces to be exposed under the welding machine, realizing precise welding at the special concave parts of the workpiece, thereby improving the adjustment performance of the welding device, and thus improving the working efficiency of the welding device.

[0037] As a preference of the above embodiments, the clamping mechanism includes sliders 501, bolts 502, screw rods 503 and top blocks 504. Multiple groups of sliders 501 respectively pass through the corresponding sliding grooves 201 and are thus slidably connected to the adjusting block 404. Threaded holes 505 are arranged on the sliders 501. Multiple groups of bolts 502 respectively pass through the corresponding threaded holes 505 and are threadedly connected to the sliders 501. By tightening and loosening the bolts 502, the adjustment and fixation of the corresponding positions of the sliders 501 on the sliding grooves 201 are realized.

[0038] Threaded holes 506 are arranged on each group of sliders 501 along the extending direction of the sliding grooves 201. Each group of screw rods 503 respectively pass through the corresponding threaded holes 506 and are threadedly connected to the corresponding sliders 501. A top block 504 is arranged at the end of each screw rod 503.

[0039] During the process of clamping the workpiece, the sliders 501 are slid to appropriate positions on the sliding grooves 201, fixed at the bottom by rotating the bolts 502, and the workpiece is clamped by rotating the screw rods 503 to drive the displacement of the top blocks 504, thereby improving the adjustability of the clamping of the welding device, and thus improving the working efficiency of the welding device.

[0040] Preferably, as an embodiment of the above, the shielding device further includes a lifting bar 601, a turning knob 602, a baffle 603 and a support rod 604. The lifting bar 601 is arranged on the vertical long groove 202 of the support arm 304 to form a vertical relative sliding relationship with the support arm 304. A turning hole 605 is provided on the lifting bar 601. Multiple groups of turning knobs 602 respectively pass through the corresponding turning holes 605 and are threadedly connected to the lifting bar 601. By tightening and loosening the turning knobs 602, the adjustment and fixation of the corresponding position of the lifting bar 601 on the long groove 202 are realized. Positioning seats are provided on both the lifting bar 601 and the baffle 603. Two ends of the support rod 604 respectively pass through the corresponding positioning seats, so that the support rod 604 is rotatably connected to the lifting bar 601 and the baffle 603 respectively. During the process of shielding the workpiece, the lifting bar 601 is slid to make its displacement adjustment on the long groove 202 according to the size of the workpiece, and the turning knob 602 is rotated to fix the lifting bar 601 on the long groove 202. During this process, the baffle 603 is rotated to drive the connected support rod 604 to rotate, so as to shield the workpiece, improving the safety of the processing of the welding device, and thus improving the working efficiency of the welding device.

[0041] Preferably, as an embodiment of the above, it further includes a handle 7. A connecting seat 8 is arranged on the support arm 304. The handle 7 passes through the connecting seat 8 and is rotatably connected to the support arm 304. During the process of displacing the device, the handle is rotated to pull the device, so as to improve the portability of the welding device, and thus improve the working efficiency of the welding device.

[0042] Preferably, as an embodiment of the above, it further includes rubber pads 9. Multiple groups of rubber pads 9 are evenly installed on the corresponding top blocks 504. During the process of supporting by the top blocks, the rubber pads are added to improve the clamping stability of the welding device, and thus improve the working efficiency of the welding device.

[0043] Preferably, as an embodiment of the above, friction grooves 10 are further provided. Multiple groups of friction grooves 10 are evenly arranged at the bottom end of the base 1. During the process of supporting by the base, the stability of the support of the welding device is improved through the friction grooves, and thus the working efficiency of the welding device is improved.

[0044] An automatic positioning laser welding device with strong automation. When it works, the rotation device is started to rotate for lateral adjustment, and the adjustment device is cooperated for longitudinal adjustment, so as to change the angle and position of the workpiece. Different workpieces are adaptively clamped through the clamping mechanism. During this process, the shielding device is used for shielding. The servo motor is started to drive the worm connected to it to rotate. The worm wheel rotates through the connection end relationship of the worm and worm wheel, and the welding is supported by cooperating with the support arm. The control is carried out by transmitting a signal to the signal sensor. The electric push rod is started to drive the connecting rod connected to it to rotate. The rotation of the connecting rod drives the adjusting block to rotate on the supporting rod, so as to carry out longitudinal rotation of the equipment. The slider is slid to an appropriate position and fixed at the bottom by rotating the bolt. The workpiece is clamped again by driving the top block to displace by rotating the screw rod. The lifting strip is slid to displace and adjust according to the size of the workpiece, and the lifting strip is fixed by rotating the knob. During this process, the baffle is rotated to drive the supporting rod connected to it to rotate, so as to shield the workpiece.

[0045] The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0046] In the present invention, the terms "first", "second", "third" do not represent specific quantities and orders, but are only used for name distinction.

[0047] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and deformations can still be made, and these improvements and deformations should also be regarded as the protection scope of the present invention.

Claims

1. An automatic positioning laser welding device, characterized in that: The welding device is installed on a base (1), and comprises a rotating mechanism, an adjusting device, a clamping mechanism and a shielding device; The rotating mechanism is arranged at the upper end of the base (1), and the adjusting device is arranged on the upper surface of the worm gear (303) of the rotating mechanism; a plurality of slide grooves (201) are arranged on the adjusting device, and the extension directions of the plurality of slide grooves (201) all pass through the center point of the adjusting block (404) of the adjusting device, and divide the surface of the adjusting block (404) into a plurality of uniform parts; the clamping mechanisms matching the number of the slide grooves (201) each pass through a corresponding slide groove (201), thereby being slidably connected with the adjusting device; A vertical long slot (202) is provided on the support arm (304) of the rotating mechanism, and the shielding device is arranged on the long slot (202) and is further slidably connected to the rotating mechanism.

2. The automatic positioning laser welding device according to claim 1, characterized in that: During the welding process of the workpiece, the rotating mechanism is started to rotate for lateral adjustment, and the adjusting device is cooperated for vertical adjustment to change the angle and position of the workpiece. Different workpieces are adaptively clamped through the clamping mechanism. In this process, the height is adjusted and shielding is performed through the shielding device.

3. The automatic positioning laser welding device according to claim 1, characterized in that: The rotating mechanism comprises a worm (301), a servo motor (302), a worm wheel (303), a support arm (304), a welder (305) and a signal sensor (306); the disc-shaped worm wheel (303) is rotatably connected to the top of the base (1); a pair of mounting seats (307) are further provided on the base (1); two ends of the worm (301) pass through the two mounting seats (307) and are further connected to the base (1); the worm (301) and the worm wheel (303) are meshed; and the servo motor (302) is connected to the power input end of the worm (301); On the base (1), at a position opposite to the mounting seat (307), a support arm (304) is vertically arranged, and the upper end of the support arm (304) is respectively connected to a welding machine (305) and a signal sensor (306).

4. The automatic positioning laser welding device according to claim 3, characterized in that: The adjusting device comprises an electric push rod (401), a connecting rod (402), a supporting rod (403) and an adjusting block (404); a capstan seat is arranged on the first connecting end of the worm wheel (303) and the connecting rod (402); two ends of the electric push rod (401) respectively pass through the corresponding capstan seat and are rotatably connected to the connecting rod (402) and the worm wheel (303); the supporting rod (403) is arranged at the top center of the worm wheel (303); a bracket (406) whose size matches the size of the upper surface of the supporting rod (403) is arranged on the lower surface of the adjusting block (404); the upper end surface of the supporting rod (403) is embedded in the bracket (406) and is rotatably connected to the adjusting block (404); the second connecting end of the connecting rod (402) is connected to the adjusting block (404).

5. The automatic positioning laser welding device according to claim 4, characterized in that: The clamping mechanism comprises a slider (501), a bolt (502), a screw rod (503) and a top block (504); a plurality of sliders (501) respectively pass through corresponding slide grooves (201) to be slidably connected with the adjustment block (404); a screw hole (505) is provided on the slider (501); a plurality of bolts (502) respectively pass through corresponding screw holes (505) to be threadedly connected with the slider (501); and the slider (501) is adjusted and fixed at a corresponding position on the slide groove (201) by tightening and loosening the bolts (502); Each group of sliders (501) is provided with a threaded hole (506) along the extension direction of the slide groove (201), each group of screw rods (503) passes through the corresponding threaded hole (506) and is threadedly connected to the corresponding slider (501), and a top block (504) is provided at the end of each screw rod (503).

6. The automatic positioning laser welding device according to claim 5, characterized in that: The number of the sliding grooves (201) and the number of the clamping mechanisms are both 4.

7. The automatic positioning laser welding device according to claim 3, characterized in that: The shielding device comprises a lifting bar (601), a rotating knob (602), a baffle (603) and a support rod (604); the lifting bar (601) is arranged on the vertical long groove (202) of the support arm (304) to form a vertical relative sliding relationship with the support arm (304); a rotating hole (605) is arranged on the lifting bar (601); a plurality of groups of rotating knobs (602) respectively pass through the corresponding rotating holes (605) and are threadedly connected to the lifting bar (601); by tightening and loosening the rotating knobs (602), the lifting bar (601) is adjusted and fixed at the corresponding position on the long groove (202); positioning seats are arranged on the lifting bar (601) and the baffle (603); two ends of the support rod (604) respectively pass through the corresponding positioning seats, so that the support rod (604) is rotatably connected to the lifting bar (601) and the baffle (603) respectively.

8. The automatic positioning laser welding device according to claim 3, characterized in that: The welding device further comprises a handle (7); a connecting seat (8) is provided on the supporting arm (304); the handle (7) passes through the connecting seat (8) and is rotatably connected to the supporting arm (304).

9. The automatic positioning laser welding device according to claim 5, characterized in that: The welding device also includes rubber pads (9), and multiple groups of rubber pads (9) are evenly installed on corresponding top blocks (504).

10. The automatic positioning laser welding device according to claim 1, characterized in that: The welding device is also provided with friction grooves (10), and a plurality of groups of friction grooves (10) are evenly arranged at the bottom end of the base (1).

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