A laser welding machine

Abstract

The present invention relates to the field of welding facilities, and in particular to a laser welding machine, comprising a machine base, a frame fixedly mounted on the upper rear portion of the machine base, a welding piece mounted on the front end of the frame, extension seats fixedly mounted on the upper portions of both sides of the frame, positioning sleeve frames elastically mounted on the ends of the extension seats, two arc-shaped brackets symmetrically arranged on the upper front portion of the machine base, limiting convex edges extending from the front and rear edges of the upper ends of the arc-shaped brackets, and limiting plates connected to the opposite ends of the two arc-shaped brackets. The present invention reduces the labor intensity of the staff, improves the welding efficiency, and at the same time ensures the normal material cutting operation and the welding quality.

Description

Technical Field

[0001] The invention relates to the field of welding facilities, in particular to a laser welding machine. Background Art

[0002] Laser welding is a welding method that uses a high-energy-density laser beam as a heat source. Laser welding is one of the important aspects of the application of laser material processing technology. When fixing the support leg on the curved plate, laser welding is often used for fixation. However, in the existing laser welding facilities, workers are required to measure and position the support leg each time during the welding process in order to position the support leg in the welding area on the curved plate for welding. The operation process greatly increases the labor intensity of the workers and affects the welding efficiency. Summary of the invention

[0003] The purpose of the present invention is to solve the shortcomings of the background technology and to propose a laser welding machine.

[0004] In order to achieve the above purpose, the technical solution adopted by the present invention is: a laser welding machine, including a machine base, a frame is fixedly installed on the upper rear part of the machine base, a welding part is installed on the front end of the frame, extension seats are fixedly installed on the upper parts of both sides of the frame, and positioning sleeve frames are elastically installed on the ends of the extension seats, and two arc-shaped brackets are symmetrically arranged on the front part of the upper end of the machine base, and limiting convex edges are extended at the front and rear edges of the upper ends of the arc-shaped brackets, and the opposite ends of the two arc-shaped brackets are connected to limiting plates.

[0005] Preferably, a bearing seat is fixedly installed between the lower ends of the two arc-shaped brackets, a support is fixedly installed in the middle of the lower end of the bearing seat, the lower end of the support is fixed to the machine base, a connecting frame is fixedly installed on the side of the limit plate, the limit plate and the connecting frame are integrally formed, and the end of the connecting frame is fixed to the arc-shaped bracket.

[0006] Preferably, a connecting block is fixedly installed on the side of the positioning sleeve, a guiding prism is fixedly installed on the end of the connecting block, the guiding prism passes through the end of the extension seat, and the guiding prism and the extension seat are slidably matched, the upper end of the guiding prism is inlaid with a limiting block, the limiting block is attached to the upper end surface of the extension seat, and the upper end of the guiding prism is fixedly installed with a top seat.

[0007] Preferably, a spring body is wound around the outer side of the guide prism, a pressing block is inlaid on the outer surface of the guide prism, and one end of the spring body is fixed to the upper end of the pressing block.

[0008] Preferably, the welded part includes a threaded rod installed in the middle of the front end of the frame, a lifting platform is provided on the outer side of the threaded rod, the lifting platform is threadedly matched with the threaded rod, two demoulding top frames are symmetrically fixedly installed at the upper edge of the front end of the lifting platform, the upper end of the demoulding top frame is affixed to the lower end of the top seat, and a servo motor is fixedly installed at the upper edge of the front end of the frame, and the output end of the servo motor is fixed to the upper end of the threaded rod.

[0009] Preferably, rod seats are rotatably installed at both ends of the threaded rod, the rear ends of the rod seats are fixed on the frame, two sliding sleeves are symmetrically fixedly installed on the rear end of the lifting platform, guide rods are provided on both sides of the threaded rod, the sliding sleeves are fitted on the outer surfaces of the guide rods, rod frames are fixedly installed at both ends of the guide rods, and the rear ends of the rod frames are fixed on the frame.

[0010] Preferably, a protruding block is fixedly installed at the side corner of the demoulding top frame, a guide prism is installed through the upper end of the protruding block, the protruding block and the guide prism are slidably matched, a pressure seat is fixedly installed at the lower end of the guide prism, the pressure seat is located directly above the positioning sleeve frame, an anti-slip block is inlaid on the upper end of the guide prism, the anti-slip block is attached to the upper end surface of the protruding block, a compression spring is wound around the outer side of the guide prism, the upper end of the compression spring is fixed to the lower end of the protruding block, and the lower end of the compression spring is fixed to the upper end of the pressure seat.

[0011] Preferably, a servo push cylinder is provided in the middle part of the front end of the lifting platform, and a cylinder frame is fixedly installed at the upper and lower ends of the servo push cylinder, and the end of the cylinder frame is fixed to the front end of the lifting platform, and a guide column is fixedly installed at the front end of the lifting platform directly below the servo push cylinder, and a guide sleeve is fitted on the outer surface of the guide column, and a push frame is fixedly installed at the output end of the servo push cylinder, and the end of the push frame is fixed to the guide sleeve, and fixed frames are fixedly installed on both sides of the guide sleeve, and gun frames are fixedly installed at the ends of the two fixed frames, and two laser welding guns are fixedly installed at both ends of the gun frame, respectively, and the laser welding gun close to the guide column is higher than the laser welding gun far away from the guide column.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. By using the provided arc-shaped support, the arc-shaped plate can be placed on the arc-shaped support for support. At this time, the limiting convex edge and the limiting plate are fitted to the front and rear end surfaces and the left and right end surfaces of the arc-shaped plate to limit the arc-shaped plate. Then, the two supporting legs are passed through the positioning sleeve and placed on the arc-shaped plate, so that under the guidance of the positioning sleeve, the supporting legs are automatically positioned in the welding area on the arc-shaped plate for welding. The process does not require the staff to perform separate measurement and positioning, thereby effectively reducing the labor intensity of the staff and improving the welding efficiency.

[0014] 2. When the lifting platform moves up after welding is completed, it will drive the demoulding top frame to move up synchronously. At this time, the demoulding top frame will push the top seat to enable the guide prism to move up, and then drive the positioning sleeve frame to move up, so that the positioning sleeve frame is separated from the outside of the support leg, so that the arc plate and the support leg can be smoothly removed from the work station after welding together, so as to avoid being obstructed by the positioning sleeve frame, thereby ensuring the normal unloading operation.

[0015] 3. Under the action of the laser welding guns that are staggered in height on the two gun racks, both sides of the two legs can be welded at the same time, which effectively shortens the welding time and improves the welding efficiency. At the same time, when the lifting platform moves downward to drive the laser welding gun to move downward for welding, it will also synchronously drive the pressure seat to move downward, so that the pressure seat can be pressed tightly on the legs to firmly press the legs on the arc plate to ensure that no welds will appear after subsequent welding, thereby ensuring the welding quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of a laser welding machine of the present invention;

[0017] Figure 2 It is a schematic diagram of an arc-shaped support seat of a laser welding machine of the present invention;

[0018] Figure 3 It is a schematic diagram of a positioning frame of a laser welding machine of the present invention;

[0019] Figure 4 This is a schematic diagram of a lifting platform of a laser welding machine of the present invention;

[0020] Figure 5 A schematic diagram of a laser welding gun of a laser welding machine of the present invention;

[0021] Figure 6 This is a usage view of a laser welding machine of the present invention.

[0022] In the figure: 1, machine base; 2, frame; 3, servo motor; 4, extension seat; 5, demoulding top frame; 6, lifting platform; 7, positioning sleeve frame; 8, support; 9, arc-shaped support seat; 10, limiting convex edge; 11, bearing seat; 12, connecting frame; 13, limiting plate; 14, cylinder frame; 15, servo push cylinder; 16, guide column; 17, pushing frame; 18, guide sleeve; 19, fixing frame; 20, gun rack; 21, laser welding gun; 22, guide prism; 23, spring body; 24, limiting block; 25, top seat; 26, pressure block; 27, connecting block; 28, extension block; 29, guide prism; 30, anti-slip block; 31, compression spring; 32, pressure seat; 33, threaded rod; 34, rod seat; 35, rod rack; 36, guide rod; 37, sliding sleeve; 38, arc-shaped plate; 39, support foot. DETAILED DESCRIPTION

[0023] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0024] like Figure 1-Figure 6 A laser welding machine shown in the figure includes a machine base 1, a frame 2 is fixedly installed on the upper rear part of the machine base 1, the frame 2 plays a bearing role, a welding part is installed on the front end of the frame 2, and an extension seat 4 is fixedly installed on the upper part of both sides of the frame 2, the extension seat 4 plays a role of bearing a positioning sleeve frame 7, and the end of the extension seat 4 is elastically installed with a positioning sleeve frame 7, and two arc-shaped brackets 9 are symmetrically arranged on the front part of the upper end of the machine base 1. The arc-shaped brackets 9 play a role of supporting the arc-shaped plate 38, and the positioning sleeve frame 7 plays a role of limiting the support leg 39. Limiting convex edges 10 are extended at the front and rear edges of the upper ends of the arc-shaped brackets 9, and the opposite ends of the two arc-shaped brackets 9 are connected to the limiting plate 13, and the limiting plate 13 and the limiting convex edge 10 play a role of limiting the arc-shaped plate 38.

[0025] A bearing seat 11 is fixedly installed between the lower ends of the two arc-shaped brackets 9, and a support 8 is fixedly installed in the middle of the lower end of the bearing seat 11. The bearing seat 11 plays a role in fixing the arc-shaped bracket 9. The lower end of the support 8 is fixed to the machine base 1. A connecting frame 12 is fixedly installed on the side of the limiting plate 13. The limiting plate 13 and the connecting frame 12 are integrally formed. The connecting frame 12 plays a role in fixing the limiting plate 13, and the end of the connecting frame 12 is fixed to the arc-shaped bracket 9.

[0026] A connecting block 27 is fixedly installed on the side of the positioning sleeve 7, and the connecting block 27 plays a connecting role. A guiding prism 22 is fixedly installed on the end of the connecting block 27, and the guiding prism 22 passes through the end of the extending seat 4. The guiding prism 22 plays a guiding role for the positioning sleeve 7, so that the positioning sleeve 7 can move vertically up and down, and the guiding prism 22 and the extending seat 4 are slidably matched. The upper end of the guiding prism 22 is inlaid with a limiting block 24, and the limiting block 24 plays a role in limiting the downward movement height of the positioning sleeve 7. The limiting block 24 is attached to the upper end surface of the extending seat 4. A top seat 25 is fixedly installed on the upper end of the guiding prism 22, and the top seat 25 plays a role in supporting the demoulding top frame 5.

[0027] A spring body 23 is wound around the outside of the guide prism 22 , and a pressure block 26 is embedded on the outer surface of the guide prism 22 . The spring body 23 pushes the positioning sleeve 7 so that the positioning sleeve 7 can move downward and reset. One end of the spring body 23 is fixed to the upper end of the pressure block 26 .

[0028] The welded parts include a threaded rod 33 installed in the middle of the front end of the frame 2, and a lifting platform 6 is arranged on the outer side of the threaded rod 33. The threaded rod 33 plays a role in driving the lifting platform 6 to move up and down. The lifting platform 6 and the threaded rod 33 are threadedly matched. Two demoulding top frames 5 are symmetrically fixedly installed at the upper edge of the front end of the lifting platform 6. The demoulding top frames 5 play a role in supporting the positioning sleeve frame 7 to move it upward. The upper end of the demoulding top frame 5 is attached to the lower end of the top seat 25. A servo motor 3 is fixedly installed at the upper edge of the front end of the frame 2. The servo motor 3 plays a role in driving the threaded rod 33 to rotate. The output end of the servo motor 3 is connected to the threaded rod 33. The upper ends are fixed, and the servo push cylinder 15 works to drive the laser welding guns 21 that are staggered on the two gun racks 20 to move, so as to weld the two sides of the two legs 39 at the same time. At this time, the guide sleeve 18 slides on the guide column 16 to assist the movement of the laser welding gun 21. After the welding is completed, when the lifting platform 6 moves up, it will drive the demoulding top frame 5 to move up synchronously. At this time, the demoulding top frame 5 will push the top seat 25, so that the guide prism 22 can move up, and then drive the positioning sleeve frame 7 to move up, so that the positioning sleeve frame 7 is separated from the outside of the leg 39, so that the arc plate 38 and the leg 39 can be smoothly removed from the work station after being welded together.

[0029] Rod seats 34 are rotatably installed at both ends of the threaded rod 33, and the rear end of the rod seat 34 is fixed on the frame 2. The rod seat 34 plays a role in supporting the threaded rod 33. Two sliding sleeves 37 are symmetrically fixedly installed on the rear end of the lifting platform 6. Guide rods 36 are provided on both sides of the threaded rod 33. The sliding sleeves 37 and the guide rods 36 play a role in guiding the lifting platform 6. The sliding sleeves 37 are fitted on the outer surface of the guide rods 36. Rod frames 35 are fixedly installed at both ends of the guide rods 36. The rear end of the rod frame 35 is fixed on the frame 2, and the rod frame 35 plays a role in fixing the guide rods 36.

[0030] A protruding block 28 is fixedly installed at the side corner of the demoulding top frame 5, and a guide prism 29 is installed through the upper end of the protruding block 28. The protruding block 28 plays a role in bearing the guide prism 29. The protruding block 28 and the guide prism 29 are slidably matched. A pressure seat 32 is fixedly installed at the lower end of the guide prism 29. The pressure seat 32 is located just above the positioning sleeve frame 7. The pressure seat 32 plays a role in firmly pressing the support foot 39 on the arc plate 38. The upper end of the guide prism 29 is inlaid with an anti-slip block 30. The anti-slip block 30 is attached to the upper end surface of the protruding block 28. The anti-slip block 30 prevents the guide prism 29 and the protruding block 28 from separating. The outer side of the guide prism 29 is wound with a compression spring 31, the upper end of the compression spring 31 is fixed to the lower end of the protruding block 28, and the lower end of the compression spring 31 is fixed to the upper end of the pressure seat 32. The compression spring 31 plays a compression role, and the pressure seat 32 on the lifting platform 6 moves down synchronously with the lifting platform 6 and is pressed on the support leg 39, and the support leg 39 is firmly pressed on the arc plate 38. At this time, the lifting platform 6 continues to move downward, so that the laser welding gun 21 moves down to a height matching the welding position. At the same time, the compression spring 31 is deformed to offset the force of the lifting platform 6 continuing to move downward, so that the pressure seat 32 can remain stationary.

[0031] A servo push cylinder 15 is provided in the middle of the front end of the lifting platform 6. The upper and lower ends of the servo push cylinder 15 are fixedly installed with a cylinder frame 14. The cylinder frame 14 plays a role in fixing the servo push cylinder 15. The end of the cylinder frame 14 is fixed to the front end of the lifting platform 6. The servo push cylinder 15 plays a role in driving the laser welding gun 21 to move forward for welding. The front end of the lifting platform 6 is located directly below the servo push cylinder 15 and is fixedly installed with a guide column 16. The outer surface of the guide column 16 is fitted with a guide sleeve 18. The output end of the servo push cylinder 15 is fixedly installed with a push frame 17. The guide column 16 and the guide sleeve 18 play a role in guiding the laser welding gun 21. The end of the pushing frame 17 is fixed to the guide sleeve 18, and fixing frames 19 are fixedly installed on both sides of the guide sleeve 18. The fixing frames 19 play a fixing role. Gun racks 20 are fixedly installed on the ends of the two fixing frames 19. Two laser welding guns 21 are fixedly installed at both ends of the gun rack 20. The laser welding gun 21 is connected to an external welding machine for use. Since welding by laser is a prior art, it is not elaborated here in detail. The laser welding gun 21 close to the guide column 16 is higher than the laser welding gun 21 far away from the guide column 16, and can adapt to the weld height of the edges of the two sides of the arc plate 38 and the support leg 39 for welding.

[0032] During welding, the arc plate 38 is placed on the arc support seat 9 for support. At this time, the limiting convex edge 10 and the limiting plate 13 are fitted on the front and rear end surfaces and the left and right end surfaces of the arc plate 38 to limit the arc plate 38. Then, the two legs 39 are placed on the arc plate 38 through the positioning sleeve frame 7, so that the legs 39 are automatically positioned in the welding area on the arc plate 38 under the guidance of the positioning sleeve frame 7. Then, the servo motor 3 works to drive the threaded rod 33 to rotate, so that the lifting platform 6 screwed on the threaded rod 33 moves down. At this time, the sliding sleeve 37 slides on the guide rod 36 to assist the lifting platform 6 to move down. At this time, the pressure seat 32 on the lifting platform 6 moves down synchronously with the lifting platform 6 to be pressed on the legs 39, so that the legs 39 are firmly pressed on the arc plate 38. At this time, the lifting platform 6 continues to move down, so that the servo motor 3 drives the threaded rod 33 to rotate. The laser welding gun 21 moves down to a height that matches the welding position, and at the same time, the compression spring 31 is deformed to offset the force of the lifting platform 6 continuing to move downward, so that the pressure seat 32 can remain stationary. Then, the servo push cylinder 15 works to drive the movement of the laser welding guns 21 set at different heights on the two gun racks 20 to weld the two sides of the two legs 39 at the same time. At this time, the guide sleeve 18 slides on the guide column 16 to assist the movement of the laser welding gun 21. After the welding is completed, when the lifting platform 6 moves up, it will drive the demoulding top frame 5 to move up synchronously. At this time, the demoulding top frame 5 will push the top seat 25 to enable the guide prism 22 to move up, thereby driving the positioning sleeve frame 7 to move up, so that the positioning sleeve frame 7 is separated from the outer side of the leg 39, so that the arc plate 38 and the leg 39 can be smoothly removed from the work station after being welded together.

[0033] In the present invention, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense. For example, "connect" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] In the description of this specification, if the terms "one embodiment", "some embodiments", "specific embodiments" and the like appear, it means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0035] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. A laser welding machine, comprising a machine base (1), characterized in that: A frame (2) is fixedly mounted on the rear upper end of the base (1), a welded part is mounted on the front end of the frame (2), extension seats (4) are fixedly mounted on the upper parts of both sides of the frame (2), and positioning sleeve frames (7) are elastically mounted on the ends of the extension seats (4), two arc-shaped brackets (9) are symmetrically arranged on the front upper end of the base (1), and limiting convex edges (10) are extended at the front and rear edges of the upper ends of the arc-shaped brackets (9), and the opposite ends of the two arc-shaped brackets (9) are connected to limiting plates (13); A bearing seat (11) is fixedly installed between the lower ends of the two arc-shaped brackets (9), a support (8) is fixedly installed in the middle of the lower end of the bearing seat (11), the lower end of the support (8) is fixed to the machine base (1), a connecting frame (12) is fixedly installed on the side of the limiting plate (13), the limiting plate (13) and the connecting frame (12) are integrally formed, and the end of the connecting frame (12) is fixed to the arc-shaped bracket (9); A connecting block (27) is fixedly mounted on the side of the positioning sleeve (7); a guiding prism (22) is fixedly mounted on the end of the connecting block (27); the guiding prism (22) penetrates the end of the extension seat (4); the guiding prism (22) and the extension seat (4) are slidably matched; a limiting block (24) is embedded in the upper end of the guiding prism (22); the limiting block (24) is attached to the upper end surface of the extension seat (4); and a top seat (25) is fixedly mounted on the upper end of the guiding prism (22); The welded part comprises a threaded rod (33) mounted at the middle of the front end of the frame (2); a lifting platform (6) is arranged on the outer side of the threaded rod (33); the lifting platform (6) is threadably matched with the threaded rod (33); two demoulding top frames (5) are symmetrically fixedly mounted at the upper edge of the front end of the lifting platform (6); the upper end of the demoulding top frame (5) is affixed to the lower end of the top seat (25); a servo motor (3) is fixedly mounted at the upper edge of the front end of the frame (2); and the output end of the servo motor (3) is fixed to the upper end of the threaded rod (33).

2. A laser welding machine according to claim 1, characterized in that: A spring body (23) is wound around the outside of the guide prism (22), a pressing block (26) is inlaid on the outer surface of the guide prism (22), and one end of the spring body (23) is fixed to the upper end of the pressing block (26).

3. A laser welding machine according to claim 1, characterized in that: Rod seats (34) are rotatably mounted on both ends of the threaded rod (33), and the rear end of the rod seat (34) is fixed on the frame (2). Two sliding sleeves (37) are symmetrically fixedly mounted on the rear end surface of the lifting platform (6). Guide rods (36) are arranged on both sides of the threaded rod (33), and the sliding sleeves (37) are fitted on the outer surface of the guide rods (36). Rod frames (35) are fixedly mounted on both ends of the guide rods (36), and the rear end of the rod frame (35) is fixed on the frame (2).

4. A laser welding machine according to claim 1, characterized in that: A protruding block (28) is fixedly installed at the side corner of the demoulding top frame (5), a guide prism (29) is installed through the upper end of the protruding block (28), the protruding block (28) and the guide prism (29) are slidably matched, a pressure seat (32) is fixedly installed at the lower end of the guide prism (29), the pressure seat (32) is located directly above the positioning sleeve frame (7), an anti-slip block (30) is embedded in the upper end of the guide prism (29), the anti-slip block (30) is attached to the upper end surface of the protruding block (28), a compression spring (31) is wound around the outer side of the guide prism (29), the upper end of the compression spring (31) is fixed to the lower end of the protruding block (28), and the lower end of the compression spring (31) is fixed to the upper end of the pressure seat (32).

5. A laser welding machine according to claim 1, characterized in that: A servo push cylinder (15) is provided at the middle of the front end of the lifting platform (6), and a cylinder frame (14) is fixedly installed at the upper and lower ends of the servo push cylinder (15), and the end of the cylinder frame (14) is fixed to the front end of the lifting platform (6). A guide column (16) is fixedly installed at the front end of the lifting platform (6) directly below the servo push cylinder (15), and a guide sleeve (18) is fitted on the outer surface of the guide column (16). A push frame (17) is fixedly installed at the output end of the servo push cylinder (15), and the end of the push frame (17) is fixed to the guide sleeve (18). Fixed frames (19) are fixedly installed on both sides of the guide sleeve (18), and gun frames (20) are fixedly installed at the ends of the two fixed frames (19). Two laser welding guns (21) are fixedly installed at both ends of the gun frame (20), respectively, wherein the laser welding gun (21) close to the guide column (16) is higher than the laser welding gun (21) away from the guide column (16).

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