Integrated laser welding machine

Abstract

The utility model discloses an integrated laser welding machine, and relates to the technical field of laser welding machines. The laser welding device comprises a machine body, a workbench, a stop lever and a three-axis driving module are arranged on the machine body, a welding part is arranged on the three-axis driving module, a laser welding head is arranged on the welding part, and a protective cover located on the peripheral side of the laser welding head is arranged on the welding part. The protective cover comprises a fixed cover, a corrugated pipe and a movable cover which are connected in sequence, the movable cover is provided with a plurality of sliding rods which are in sliding fit with the fixed cover, extension springs are arranged between the sliding rods and the fixed cover, the fixed cover is provided with a driving part and a locking part, the driving part drives the sliding rods to slide synchronously, and the locking part locks the sliding rods. And the driving piece is locked or unlocked through the locking piece. In the welding process, the laser welding head is protected through the protective cover, splashing welding is prevented from hurting nearby workers, the safety performance is improved, and therefore the laser welding device is more practical.

Description

Technical Field

[0001] The present application relates to the technical field of laser welding machines, and in particular to an integrated laser welding machine. Background Art

[0002] A laser welding machine is a welding device that uses a laser beam as a heat source. It uses laser pulses to heat the material in a small range, and the energy increases accordingly. It diffuses rapidly into the interior of the material through heat conduction, and can complete the melting, evaporation, and solidification welding process in milliseconds. The laser welding machine mainly includes a body, on which a workbench, a baffle and a three-axis drive module are provided. The three-axis drive module is provided with a welding part, and the welding part is provided with a laser welding head. When in use, the workpiece to be welded is placed on the workbench and overlapped with the baffle. The welding part and the laser welding head are driven to move together by the three-axis drive module, and the workpiece is welded by the laser welding head. In the existing technology, the laser welding head is usually exposed to the outside and lacks protective devices around it. During the welding process, splashing welding slag will be generated around the laser welding head, which can easily injure nearby workers. The safety performance needs to be improved, so an integrated laser welding machine is proposed. Utility Model Content

[0003] The purpose of this application is to solve the technical problem that the laser welding head is usually exposed to the outside and lacks protective devices around it. During the welding process, splashing welding slag will be generated around the laser welding head, which can easily injure nearby workers and the safety performance needs to be improved. This application provides an integrated laser welding machine.

[0004] In order to achieve the above-mentioned purpose, this application specifically adopts the following technical solutions:

[0005] The integrated laser welding machine includes a body, on which a workbench, a baffle and a three-axis drive module are provided. The three-axis drive module is provided with a welding part, and the welding part is provided with a laser welding head. The welding part is provided with a protective cover located on the outer peripheral side of the laser welding head. The protective cover includes a fixed cover, a bellows and a movable cover connected in sequence. The movable cover is provided with a plurality of sliding rods that are all slidably matched with the fixed cover. A tension spring is provided between the sliding rod and the fixed cover. The fixed cover is provided with a driving part and a locking part. The driving part drives the multiple sliding rods to slide synchronously, and the locking part is used to lock or unlock the driving part.

[0006] Furthermore, the free end of the movable cover is in an outwardly expanding cone shape.

[0007] Furthermore, the driving member includes a turntable rotatably arranged on the fixed cover, a roller is rotatably arranged on the sliding rod, and the turntable is provided with protrusions that are the same number and one-to-one corresponding to the rollers, the rollers, the turntable and the protrusions are all rollingly overlapped, and the protrusions are constructed with continuously distributed guiding slopes and planes.

[0008] Furthermore, the locking member includes a locking hole provided on the turntable, a locking rod is slidably provided on the fixed cover and a compression spring is provided between the two, the locking rod is in contact with the turntable and is plugged into the locking hole.

[0009] Furthermore, the driving member includes an annular groove provided on the fixed cover, a slide plate is slidably provided in the annular groove, and the slide plate is in contact with and overlapped with the plurality of slide rods.

[0010] Furthermore, the locking piece includes a positioning hole opened on the slide, a positioning rod is slidingly provided on the fixed cover and a reset spring is provided between the two, the positioning rod is plugged into the positioning hole, the positioning rod is constructed with continuously distributed transition slopes and grooves, and the slide is plugged into the groove.

[0011] Furthermore, the fixing cover is detachably arranged on the welding part.

[0012] Furthermore, the welding piece is provided with a plurality of through holes, the fixing cover is provided with screws having the same number as the through holes and correspondingly plugged in one to one, and the screws are threadedly provided with locking nuts that overlap with the welding piece.

[0013] The beneficial effects of the present application are as follows: During the welding process, the present application protects the laser welding head through a protective cover to prevent welding splashes from injuring nearby workers, thereby improving safety performance and making it more practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural stereogram of Example 1, Example 2 and Example 4 of the present application;

[0015] Figure 2 It is a partial structural perspective diagram of Example 1, Example 2 and Example 4 of the present application;

[0016] Figure 3 This application Figure 2 Enlarged view of point A in the middle;

[0017] Figure 4 This application Figure 2 A three-dimensional cross-sectional view of

[0018] Figure 5 This application Figure 4 Enlarged view of point B in the middle;

[0019] Figure 6 This application Figure 4 Enlarged view of point C in the middle;

[0020] Figure 7 This application Figure 2 Another perspective stereogram;

[0021] Figure 8 It is a partial structural perspective diagram of the first, third and fourth embodiments of the present application;

[0022] Figure 9 This application Figure 8 A three-dimensional cross-sectional view of

[0023] Figure 10 This application Figure 9 Enlarged view of point D in the middle.

[0024] Figure numerals: 1. Machine body; 2. Workbench; 3. Baffle; 4. Three-axis drive module; 5. Welding part; 6. Laser welding head; 7. Fixed cover; 8. Bellows; 9. Moving cover; 10. Slide rod; 11. Tension spring; 12. Turntable; 13. Roller; 14. Bump; 15. Locking hole; 16. Locking rod; 17. Compression spring; 18. Annular groove; 19. Slide plate; 20. Positioning hole; 21. Positioning rod; 22. Reset spring; 23. Through hole; 24. Screw; 25. Locking nut. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application.

[0026] Example 1

[0027] like Figures 1-6As shown, an integrated laser welding machine proposed in one embodiment of the present application includes a body 1, on which a workbench 2, a blocking rod 3 and a three-axis driving module 4 are provided. The three-axis driving module 4 includes a guide rail, a first movable frame, a second movable frame and a third movable frame. The guide rail is horizontal and fixed on the body 1. The first movable frame is slidably arranged on the guide rail along the X-axis direction, and the second movable frame is slidably arranged on the first movable frame along the Z-axis direction. A first screw rod with a thread passing through the second movable frame is rotatably provided on the first movable frame, and the third movable frame is slidably arranged on the second movable frame along the Y-axis direction. A second screw rod with a thread passing through the third movable frame is rotatably provided on the second movable frame. A welding part 5 is provided on the three-axis driving module 4, and a welding part 5 is provided on the welding part 5. A laser welding head 6 is provided, and a protective cover located on the outer peripheral side of the laser welding head 6 is provided on the welding part 5. The protective cover includes a fixed cover 7, a bellows 8 and a movable cover 9 connected in sequence. The fixed cover 7 is fixed on the welding part 5. The movable cover 9 is provided with a plurality of slide bars 10 that are all slidably matched with the fixed cover 7. The plurality of slide bars 10 are all fixed on the movable cover 9 and distributed in a ring array. The slide bars 10 slide along the length direction of the movable cover 9. A tension spring 11 is provided between the slide bar 10 and the fixed cover 7. The two ends of the tension spring 11 are fixedly connected to the slide bar 10 and the fixed cover 7 respectively. A driving member and a locking member are provided on the fixed cover 7. The driving member drives the plurality of slide bars 10 to slide synchronously, and the locking member locks or unlocks the driving member;

[0028] In the initial state, the movable cover 9 and the plurality of slide bars 10 are all in the initial position, the length of the bellows 8 is relatively short, and the plurality of tension springs 11 are all in the natural state. When in use, the workpiece to be welded is placed on the workbench 2 and overlapped with the blocking rod 3, and the welding part 5 and the laser welding head 6 are driven to move together by the three-axis driving module 4 until the laser welding head 6 corresponds to the initial point of the workpiece, and then the plurality of slide bars 10 are driven to slide synchronously to the limit position by the driving member, and the plurality of tension springs 11 are all stretched, and the movable cover 9 moves to the limit position, and the length of the bellows 8 increases, and a protective cover is formed together by the fixed cover 7, the bellows 8 and the movable cover 9, and the driving member is locked by the locking member to keep the position of the movable cover 9 and the plurality of slide bars 10 unchanged, and the plurality of tension springs 11 cannot be reset to the natural state, and then the three-axis driving module 4 is used. The welding part 5 and the laser welding head 6 are driven to move together, and the workpiece is welded by the laser welding head 6. In actual use, the straight seams of the air duct can be welded, the connection seams between the air duct and the flange can be welded, the air duct air plug can be welded, all straight seam boxes can be welded, the joint seams between the plates can be welded, and the ring type can be welded with a positioner. At the same time, a standard air duct can be welded in 34 seconds, and the thickness of the welded plate can be processed from 0.75 to 5.0. The welding length can be extended to a maximum of 1.5 meters and a standard section of 1.25 meters. During the welding process, the laser welding head 6 is protected by a protective cover to avoid splashing welding and injuring nearby workers, thereby improving safety performance. When the welding is completed, the driving part is unlocked by the locking part, and the multiple tension springs 11 are reset to the natural state. The movable cover 9 and the multiple slide bars 10 move to the initial position together, and the length of the bellows 8 is reduced.

[0029] In summary, during the welding process, the present application protects the laser welding head 6 through a protective cover to prevent welding splashes from injuring nearby workers, thereby improving safety performance and being more practical.

[0030] like Figure 4 As shown, in some embodiments, the free end of the movable cover 9 is configured to be tapered outwardly;

[0031] As mentioned above, the outward-expanding conical design can increase the protection area of ​​the laser welding head 6, thereby improving the protection effect.

[0032] Example 2

[0033] The second embodiment is based on the first embodiment and proposes a method for realizing the driving member and the locking member;

[0034] like Figure 3-Figure 7As shown, in some embodiments, the driving member includes a turntable 12 rotatably provided on the fixed cover 7, a roller 13 rotatably provided on the slide bar 10, and a number of protrusions 14 that are the same as and correspond to the rollers 13 are provided on the turntable 12, and the multiple protrusions 14 are fixed on the turntable 12 and distributed in a circular array, and the roller 13, the turntable 12, and the protrusions 14 are all rollingly overlapped, and the protrusions 14 are constructed with continuously distributed guiding inclined surfaces and flat surfaces;

[0035] With reference to the above, in the initial state, the slide bar 10 is in the initial position, and the roller 13 rolls and overlaps with the turntable 12. When in use, the turntable 12 is driven to rotate forward, driving multiple protrusions 14 to move together. The roller 13 first rolls from the turntable 12 to the guide inclined surface, thereby driving the slide bar 10 to slide to the extreme position. Thereafter, the roller 13 rolls from the guide inclined surface to the plane, keeping the slide bar 10 in the extreme position unchanged, and then locks the turntable 12 through the locking member, and the turntable 12 cannot rotate, so as to drive multiple slide bars 10 to slide synchronously. Conversely, the turntable 12 is unlocked through the locking member, driving the turntable 12 to reverse, driving multiple protrusions 14 to move together, and the roller 13 first rolls from the plane to the guide inclined surface, and then rolls from the guide inclined surface to the turntable 12. In this process, multiple slide bars 10 slide synchronously to the initial position.

[0036] like Figure 3 As shown, in some embodiments, the locking member includes a locking hole 15 formed on the rotating disk 12, a locking rod 16 is slidably provided on the fixed cover 7, and a compression spring 17 is provided between the two. The sliding direction of the locking rod 16 is the same as the sliding direction of the slide bar 10, and the two ends of the compression spring 17 are fixedly connected to the locking rod 16 and the fixed cover 7 respectively. The locking rod 16 contacts and overlaps the rotating disk 12 and is plugged into the locking hole 15.

[0037] Referring to the above, in the initial state, the turntable 12 and the locking hole 15 are both in the initial positions, the locking rod 16 is in the extreme position and is in contact with the turntable 12, and the compression spring 17 is in a stretched state. When the turntable 12 rotates forward, the locking hole 15 moves therewith and corresponds to the locking rod 16, and the compression spring 17 is reset to a natural state, and the locking rod 16 slides to the initial position and is plugged into the locking hole 15. Through the cooperation of the locking rod 16 and the locking hole 15, the turntable 12 is locked. Conversely, the locking rod 16 slides to the extreme position and exits the locking hole 15, and the compression spring 17 is stretched, thereby unlocking the turntable 12. Then, the turntable 12 is driven to reverse, and the locking rod 16 is released. The compression spring 17 is reset to a natural state, and the locking rod 16 slides to the initial position and is in contact with the turntable 12.

[0038] Example 3

[0039] The third embodiment is based on the first embodiment and proposes another implementation method of the driving member and the locking member;

[0040] like Figures 8-10 As shown, in some embodiments, the driving member includes an annular groove 18 formed on the fixed cover 7, the annular groove 18 being formed along the length direction of the fixed cover 7, a slide plate 19 being slidably provided in the annular groove 18, and the slide plate 19 being in contact with and overlapped with the plurality of slide bars 10;

[0041] Referring to the above, in the initial state, the slide bar 10 and the slide plate 19 are both in the initial position. When in use, the slide plate 19 is driven to slide to the extreme position, and the slide plate 19 and multiple slide bars 10 are all in contact and overlapped, driving multiple slide bars 10 to slide synchronously to the extreme position. The slide plate 19 is then locked by the locking member, and the slide plate 19 cannot slide, so as to drive multiple slide bars 10 to slide synchronously. Conversely, the slide plate 19 is unlocked by the locking member, and multiple slide bars 10 and the slide plate 19 slide to the initial position together.

[0042] like Figure 10 As shown, in some embodiments, the locking member includes a positioning hole 20 formed on the slide 19, a positioning rod 21 is slidably provided on the fixed cover 7, and a return spring 22 is provided between the two. The sliding direction of the positioning rod 21 is perpendicular to the sliding direction of the slide bar 10, and the positioning rod 21 is plugged into the positioning hole 20. The positioning rod 21 is constructed with continuously distributed transition slopes and grooves, and the slide 19 is plugged into the groove.

[0043] Referring to the above, in the initial state, the positioning rod 21 is in the initial position and the return spring 22 is in the natural state. When the slide plate 19 slides to the limit position, the transition slope is first engaged with the positioning hole 20. Through the transition effect of the transition slope, the positioning rod 21 is forced to slide to the limit position, and the return spring 22 is stretched. Then the transition slope passes through the positioning hole 20, and the return spring 22 is reset to the natural state. The positioning rod 21 slides to the initial position, and the slide plate 19 is engaged with the groove. At this time, the slide plate 19 cannot slide, so as to lock the slide plate 19. On the contrary, the positioning rod 21 is slid to the limit position, the return spring 22 is stretched, and the slide plate 19 exits the groove and slides to the initial position to unlock the slide plate 19. Then the positioning rod 21 is released, the return spring 22 is reset to the natural state, and the positioning rod 21 slides to the initial position.

[0044] Example 4

[0045] The fourth embodiment further improves the present application based on the first embodiment.

[0046] like Figure 6 As shown, in some embodiments, the fixed cover 7 is detachably provided on the welding member 5;

[0047] With reference to the above, during use, the detachable design of the fixed cover 7 facilitates the loading and unloading, cleaning, and maintenance of the laser welding head 6 .

[0048] like Figure 6 As shown, in some embodiments, a plurality of through holes 23 are formed on the welding piece 5, and the plurality of through holes 23 are distributed in a circular array. The fixing cover 7 is provided with screws 24 having the same number as the through holes 23 and corresponding to each other. The screws 24 are fixed to the fixing cover 7, and a locking nut 25 is threadedly provided on the screws 24 to contact and overlap the welding piece 5.

[0049] Referring to the above, in the initial state, the fixed cover 7 is in the installed state, and the multiple screws 24 are respectively inserted into the multiple through holes 23, and the multiple locking nuts 25 are respectively tightened on the multiple screws 24 and all of them are in contact with the welding part 5. When disassembling, the multiple locking nuts 25 are loosened in turn to move away from the multiple screws 24 and the welding part 5, so that the fixed cover 7 is away from the welding part 5 until the multiple screws 24 respectively exit the multiple through holes 23. Conversely, when installing, the multiple screws 24 are respectively corresponding to and inserted into the multiple through holes 23, so that the fixed cover 7 is in contact with the welding part 5 and overlapped, and then the multiple locking nuts 25 are respectively tightened on the multiple screws 24 until the locking nuts 25 are in contact with the welding part 5 and overlap.

[0050] The above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present application. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application is not limited to the embodiments shown herein, but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An integrated laser welding machine, comprising a machine body (1), wherein the machine body (1) is provided with a workbench (2), a stop rod (3) and a three-axis driving module (4), wherein the three-axis driving module (4) is provided with a welding part (5), and wherein the welding part (5) is provided with a laser welding head (6), characterized in that: The welding part (5) is provided with a protective cover located on the outer peripheral side of the laser welding head (6), and the protective cover includes a fixed cover (7), a bellows (8) and a movable cover (9) connected in sequence. The movable cover (9) is provided with a plurality of sliding rods (10) that are all slidably matched with the fixed cover (7), and a tension spring (11) is provided between the sliding rods (10) and the fixed cover (7). The fixed cover (7) is provided with a driving part and a locking part. The driving part drives the plurality of sliding rods (10) to slide synchronously, and the locking part locks or unlocks the driving part.

2. The integrated laser welding machine according to claim 1, characterized in that: The free end of the movable cover (9) is in an outwardly expanding cone shape.

3. The integrated laser welding machine according to claim 1, characterized in that: The driving member comprises a turntable (12) rotatably arranged on a fixed cover (7), a roller (13) rotatably arranged on the slide bar (10), and a number of convex blocks (14) which are the same as the number of the rollers (13) and correspond one to one to each other are arranged on the turntable (12), the rollers (13) and the turntable (12) and the convex blocks (14) are all in rolling overlap, and the convex blocks (14) are constructed with continuously distributed guiding inclined surfaces and planes.

4. The integrated laser welding machine according to claim 3, characterized in that: The locking member comprises a locking hole (15) provided on the rotating disk (12); a locking rod (16) is slidably provided on the fixed cover (7) and a compression spring (17) is provided between the two; the locking rod (16) is in contact with and overlaps the rotating disk (12) and is plugged into and matched with the locking hole (15).

5. The integrated laser welding machine according to claim 1, characterized in that: The driving member comprises an annular groove (18) provided on the fixed cover (7), a slide plate (19) is slidably arranged in the annular groove (18), and the slide plate (19) is in contact with and overlapped with a plurality of slide bars (10).

6. The integrated laser welding machine according to claim 5, characterized in that: The locking member includes a positioning hole (20) provided on the slide plate (19), a positioning rod (21) is slidably provided on the fixed cover (7) and a return spring (22) is provided between the two, the positioning rod (21) is plugged into and matched with the positioning hole (20), the positioning rod (21) is constructed with continuously distributed transition inclined surfaces and grooves, and the slide plate (19) is plugged into and matched with the groove.

7. The integrated laser welding machine according to claim 1, characterized in that: The fixing cover (7) is detachably arranged on the welding piece (5).

8. The integrated laser welding machine according to claim 7, characterized in that: The welding piece (5) is provided with a plurality of through holes (23), the fixing cover (7) is provided with screw rods (24) having the same number as the through holes (23) and correspondingly plugged in one by one, and the screw rods (24) are threadedly provided with locking nuts (25) that are in contact with and overlap the welding piece (5).

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