An automatic feeding and discharging structure applied to a laser welding machine

Abstract

The application discloses an automatic feeding and discharging structure applied to a laser welding machine, comprising a processing device, a stacking device for stacking first welding pieces is arranged in the processing device, a workpiece transfer device capable of moving the last first welding piece to one side is arranged in the processing device, a transfer base for transferring second welding pieces is arranged in the processing device, a guide rail and a balance holding mechanism are arranged on the processing device, an upper fixed limiting plate capable of cooperating with the transfer base to fix the first welding pieces and the second welding pieces is arranged on the processing device, the two kinds of metal pieces can be quickly fed and aligned, automatic clamping and fixing are realized, laser welding is carried out around the connecting seam, after welding is completed, one-way discharging is quickly completed, the workpieces after welding are automatically discharged, and the above processing actions can be repeated, multiple procedures are more coherent, processing time is saved, the input of manpower and material resources is reduced, and production efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to laser welding, in particular to an automatic feeding and discharging structure applied in a laser welding machine. BACKGROUND

[0002] Laser welding is a technology that uses a laser beam as a heat source to heat metal materials to a molten state, and then rapidly cools and solidifies to achieve firm connection of metal parts. In the process of welding two metal parts, the two metal parts need to be fed, positioned, fixed, welded around the outer wall of the pipe circumference, and discharged. Artificial assistance is required during the process, that is, artificial participation is required for each of the above steps, which is low in efficiency and labor-intensive, and is not conducive to mass production.

[0003] Therefore, the existing laser welding process needs to be further improved. SUMMARY

[0004] The purpose of the present application is to provide an automatic feeding and discharging structure applied in a laser welding machine, which can realize automatic feeding, positioning, fixing, welding around the outer wall of the pipe circumference, and discharging of two metal parts, save manpower and material resources, and improve production efficiency.

[0005] In order to achieve the above purpose, the present application adopts the following scheme:

[0006] An automatic feeding and discharging structure applied in a laser welding machine, comprising a processing device, a stacking device for stacking first welding parts is arranged in the processing device, a workpiece transfer device capable of moving the last one of the first welding parts to one side is arranged in the processing device, a transfer base for transferring second welding parts is arranged in the processing device, a guide rail and a balance maintaining mechanism are arranged on the processing device, an upper fixed limiting plate capable of cooperating with the transfer base to fix the first welding parts and the second welding parts is arranged on the processing device, a rotating welding head assembly for surrounding welding at the connection between the first welding parts and the second welding parts is arranged on the workpiece transfer device, a discharging channel is arranged in the processing device, and a one-way discharging assembly is arranged between the discharging channel and the guide rail; a horizontal synchronous maintaining assembly maintaining the same horizontal position is arranged between the workpiece transfer device and the transfer base;

[0007] The guide rail is used to drive the transfer base to move along a reverse "L" type path, and make the transfer base move from the bottom through the stacking device to one side;

[0008] The balance maintaining mechanism is used to maintain the balance of the transfer base during movement;

[0009] The unidirectional unloading assembly can drive the welded workpiece to the unloading channel when the transfer base is lowered.

[0010] Further, the processing device comprises a shell, and the shell is internally provided with a device base.

[0011] Further, the stacking device comprises a storage tube provided on the shell, and the storage tube internally stores a plurality of stacked tube-shaped parts.

[0012] The workpiece transfer device comprises a fixed support provided on the device base, and the fixed support is provided with a transverse track, and the transverse track is provided with an intermediate transfer plate, and the intermediate transfer plate is provided with a through hole, and a downward elastic positioning plate is arranged below the intermediate transfer plate.

[0013] The through hole is arranged in alignment with the lower end of the storage tube.

[0014] The downward elastic positioning plate is used for limiting the downward distance of the first welded part.

[0015] Further, the downward elastic positioning plate comprises a plate movable seat provided on the fixed support, and the plate movable seat is movably provided with a movable limiting plate, and the plate movable seat is provided with an elastic structure for outwardly pressing the movable limiting plate.

[0016] Further, the guide track comprises a main plate provided on the device base, and the main plate is provided with an L-shaped guide groove, and the L-shaped guide groove is movably provided with a movable shaft body, and the main plate is provided with a motor driving assembly and a swing main shaft, and the motor driving assembly and the swing main shaft are rotationally transmitted through a gear transmission assembly, and the swing main shaft is provided at the rear end with a swing rod, and the swing rod covers the range of the L-shaped guide groove in length, and the swing rod is provided with a straight slot, and the movable shaft body is inserted into the straight slot, and the transfer base is fixedly connected with the front end of the movable shaft body.

[0017] When the transfer base is lifted upward, the first welded part and the second welded part are pressed by cooperating with the upper fixed limiting plate.

[0018] Further, the L-shaped guide groove comprises a vertical groove and a horizontal straight groove provided above the right of the vertical groove, and the vertical groove and the horizontal straight groove are connected with an inclined straight groove.

[0019] Further, the balance maintaining mechanism comprises a vertical lifting guide rod arranged on the equipment base, a vertical lifting piece movably arranged on the vertical lifting guide rod, a transverse straight slot arranged on the vertical lifting piece, a rectangular parallel maintaining piece arranged at the rear end of the movable shaft body, and the rectangular parallel maintaining piece is movably arranged in the transverse straight slot and one surface of the rectangular parallel maintaining piece is tightly arranged on the inner wall surface of the transverse straight slot.

[0020] Further, the rotating welding head assembly comprises an annular groove arranged outside the through hole, the annular groove is arranged on the lower surface of the intermediate transfer plate, an annular rotating seat is rotatably arranged in the annular groove, a plurality of laser welding heads are arranged on the annular rotating seat and face the welding seam position, a control motor assembly is arranged on the intermediate transfer plate and is used for driving the annular rotating seat to reciprocating rotate, and a transmission gear assembly is arranged between the control motor assembly and the annular rotating seat and is used for transmission.

[0021] Further, the one-way unloading assembly comprises a central rotating shaft arranged between the unloading channel and the vertical slot, a transfer swing plate is arranged on the central rotating shaft, a reset coil spring assembly is arranged on the main body plate and is connected with the central rotating shaft, the reset coil spring assembly can keep the transfer swing plate in the downward overturning state, a limiting block for limiting the downward overturning angle of the transfer swing plate is arranged on the main body plate, and a staggered slot is arranged on the transfer base, and the transfer swing plate can pass through the staggered slot.

[0022] When the second welding piece is arranged on the transfer base and is moved upward, the transfer swing plate is pushed to overturn upward and pass through the transfer swing plate.

[0023] When the second welding piece and the first welding piece are arranged on the transfer base and are moved downward, the workpieces cannot pass through the transfer swing plate, the workpieces fall on the transfer swing plate and are unloaded to the unloading channel.

[0024] Further, the transfer base comprises a workpiece supporting plate, and a workpiece positioning and mounting slot is arranged on the workpiece supporting plate.

[0025] In conclusion, the present application has the following advantages over the prior art:

[0026] The present application solves the deficiencies existing in the prior art laser welding process, and has the following advantages: the two metal pieces can be quickly fed and aligned, automatically clamped and fixed, laser welding is performed around the joint, and after welding is completed, one-way unloading is quickly completed, the workpiece after welding is automatically unloaded, and the above processing actions can be repeated, multiple processes are more coherent, processing time is saved, labor and material investment is reduced, production efficiency is improved, and the structure is simple and convenient to use. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 is a front view of the present application;

[0028] Figure 2 is a rear view of the present application;

[0029] Figure 3 is a schematic view of the two welding metal piece preparation structure of the present application;

[0030] Figure 4 is a schematic view of the two welding metal piece feeding structure of the present application;

[0031] Figure 5 is a schematic view of the two welding metal piece fixing and welding structure of the present application;

[0032] Figure 6 is a schematic view of the unloading process structure after welding of the present application;

[0033] Figure 7 is a schematic view of the one-way unloading work structure of the present application;

[0034] Figure 8 is a schematic view of the one-way unloading and resetting structure of the present application;

[0035] Figure 9 is a perspective view of the present application;

[0036] Figure 10 is a schematic view of the internal structure of the present application; DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor are within the scope of protection of the present application.

[0038] Please refer to Figures 1-10The application provides an automatic feeding and discharging structure applied to a laser welding machine, comprising a processing device 1, characterized in that: a stacking device 2 for stacking first welding pieces is arranged in the processing device 1, a workpiece transfer device 3 capable of moving the last first welding piece to one side is arranged in the processing device 1, a transfer base 4 for transferring second welding pieces is arranged in the processing device 1, a guide rail 5 and a balance maintaining mechanism 6 are arranged on the processing device 1, an upper fixed limiting plate 10 capable of cooperating with the transfer base 4 to fix the first welding pieces and the second welding pieces is arranged on the processing device 1, a rotary welding head assembly 7 for surrounding welding of the connection part of the first welding pieces and the second welding pieces is arranged on the workpiece transfer device 3, a discharging channel 8 is arranged in the processing device 1, and a one-way discharging assembly 9 is arranged between the discharging channel 8 and the guide rail 5; a transverse synchronous maintaining assembly 11 maintaining the same transverse position is arranged between the workpiece transfer device 3 and the transfer base 4.

[0039] The guide rail 5 is used for driving the transfer base 4 to move along a reverse "L" type path and moving the transfer base 4 from the bottom to pass through the stacking device 2 and then to one side.

[0040] The balance maintaining mechanism 6 is used for maintaining the balance of the transfer base 4 during movement.

[0041] The one-way discharging assembly 9 can drive the welding completed workpiece to the discharging channel 8 when the transfer base 4 descends.

[0042] The processing device 1 comprises an outer shell 101, and an equipment base 102 is arranged in the outer shell 101.

[0043] Preparation: a plurality of first welding pieces are pre-stacked in the stacking device 2, and the bottommost first welding piece enters the workpiece transfer device 3.

[0044] According to actual conditions, the second welding pieces can be sent to the transfer base 4 by manual operation or a conveying mechanism.

[0045] Feeding: the guide rail 5 is started, the guide rail 5 drives the second welding pieces to move to the right side, and the balance maintaining mechanism 6 maintains the balance of the second welding pieces during movement.

[0046] The workpiece transfer device 3 is driven to move synchronously by the transverse synchronous maintaining assembly 11 (that is, the first welding pieces and the second welding pieces are always in the same transverse position, but the height direction interval between them is not affected).

[0047] Positioning and fixing: when the first welding piece and the second welding piece move to the rightmost side, the first welding piece and the second welding piece are fixed and clamped by the upper fixed limiting plate 10 and the gradually rising transfer base 4, and are moved to the rightmost side for processing;

[0048] Welding: at this time, the rotating welding head assembly 7 can be started manually or by using a control module, and the rotating welding head assembly 7 surrounds the welding position of the first welding piece and the second welding piece to perform welding;

[0049] Unloading: after welding is completed, the first welding piece and the second welding piece are designed as an integral, at this time, the guide rail 5 is reset, and the workpiece after welding is moved to the position of the one-way unloading assembly 9, and the workpiece after welding is transferred to the unloading channel 8 by the one-way unloading assembly 9 to complete unloading;

[0050] Finally, repeat the "material preparation" process.

[0051] The stacking device 2 includes a storage tube 201 arranged on the shell 101, and a plurality of stacked pipe-shaped pieces are stored in the storage tube 201.

[0052] The workpiece transfer device 3 includes a fixed support 301 arranged on the equipment base 102, a transverse rail 302 is arranged on the fixed support 301, an intermediate transfer plate 303 is arranged on the transverse rail 302, a through hole 304 is arranged on the intermediate transfer plate 303, and a downward elastic limiting plate 305 is arranged below the intermediate transfer plate 303.

[0053] The through hole 304 is aligned with the lower end of the storage tube 201;

[0054] The downward elastic limiting plate 305 is used to limit the downward distance of the first welding piece.

[0055] The downward elastic limiting plate 305 includes a plate movable seat 3051 arranged on the fixed support 301, a movable limiting plate 3052 movably arranged in the plate movable seat 3051, and an elastic structure 3053 arranged in the plate movable seat 3051 and used to outwardly press the movable limiting plate 3052.

[0056] The stacked pipe-shaped welding pieces are in the storage tube 201, and the bottom is temporarily supported by the movable limiting plate 3052; when the pipe-shaped welding pieces move to the right through the through hole 304, the lowermost pipe-shaped welding piece moves to the right, and finally completes welding with the second welding piece.

[0057] When the workpiece after welding is reset to move to the left, at this time, the movable limiting plate 3052 will touch the outer wall of the welded tubular welding piece, at this time, the movable limiting plate 3052 is compressed through the elastic structure 3053, and after the welded tubular welding piece is separated, the movable limiting plate 3052 is automatically reset, so that the movable limiting plate 3052 continues to support the next tubular welding piece at the bottom of the through hole 304.

[0058] The guide rail 5 comprises a main plate 501 arranged on the equipment base 102, wherein an L-shaped guide groove 502 is arranged on the main plate 501, a movable shaft body 503 is movably arranged in the L-shaped guide groove 502, a motor driving assembly 504 and a swing main shaft 505 are arranged on the main plate 501, the motor driving assembly 504 and the swing main shaft 505 are rotationally driven through a gear transmission assembly, a swing rod 506 is arranged at the rear end of the swing main shaft 505, the length of the swing rod 506 covers the range of the L-shaped guide groove 502, a straight slot 507 is arranged on the swing rod 506, and the movable shaft body 503 is inserted into the straight slot 507; and the transfer base 4 and the movable shaft body 503 are fixedly connected at the front end.

[0059] When the transfer base 4 is lifted upward, the first welding piece and the second welding piece are pressed and clamped through cooperation with the upper fixed limiting plate 10.

[0060] The L-shaped guide groove 502 comprises a vertical groove 5021 and a horizontal straight groove 5022 arranged above the right side of the vertical groove 5021, and an inclined straight groove 5023 is connected between the vertical groove 5021 and the horizontal straight groove 5022.

[0061] The balance maintaining mechanism 6 comprises a vertical lifting guide rod 601 arranged on the equipment base 102, wherein a vertical lifting piece 602 is movably arranged on the vertical lifting guide rod 601, a horizontal straight groove 603 is arranged on the vertical lifting piece 602, a rectangular parallel maintaining piece 604 is arranged at the rear end of the movable shaft body 503, and the rectangular parallel maintaining piece 604 is movably arranged in the horizontal straight groove 603 and moves with one side closely attached to the inner wall surface of the horizontal straight groove 603.

[0062] The vertical lifting piece 602 and the vertical lifting guide rod 601 maintain the horizontal direction in the vertical direction, the horizontal straight groove 603 and the rectangular parallel maintaining piece 604 can maintain the horizontal direction in the horizontal direction, the straight slot 507 is swung during the swinging of the swing rod 506, the movable shaft body 503 is moved along the path of the L-shaped guide groove 502, and the balance during the movement is maintained through the balance maintaining mechanism 6.

[0063] The rotating welding head assembly 7 of the application comprises an annular groove 701 arranged outside the through hole 304, the annular groove 701 is arranged on the lower surface of the intermediate transfer plate 303, an annular rotating seat 702 is rotatably arranged in the annular groove 701, a plurality of laser welding heads 703 are arranged on the annular rotating seat 702 and face the welding seam position, a control motor assembly 704 for driving the annular rotating seat 702 to reciprocating rotate is arranged on the intermediate transfer plate 303, and the control motor assembly 704 and the annular rotating seat 702 are driven through the transmission gear assembly arranged therebetween.

[0064] The one-way unloading assembly 9 of the application comprises a central rotating shaft 901 arranged between the unloading channel 8 and the vertical groove 5021, a transfer swing plate 903 is arranged on the central rotating shaft 901, a reset coil spring assembly 902 is arranged on the main body plate 501 and connected with the central rotating shaft 901, the reset coil spring assembly 902 can keep the transfer swing plate 903 in a downward overturning state, a limiting block 904 for limiting the downward overturning angle of the transfer swing plate 903 is arranged on the main body plate 501, and a staggered slot 905 is arranged on the transfer base 4, and the transfer swing plate 903 can pass through the staggered slot 905.

[0065] When the second welding piece is placed on the transfer base 4 and moves upward, the transfer swing plate 903 is pushed to overturn upward and pass over the transfer swing plate 903.

[0066] When the second welding piece and the first welding piece after welding are placed on the transfer base 4 and move downward, the workpiece after welding cannot pass over the transfer swing plate 903, so that the workpiece after welding falls on the transfer swing plate 903 and is unloaded to the unloading channel 8.

[0067] The transfer base 4 of the application comprises a workpiece supporting plate 401, and a workpiece positioning and mounting groove 402 is arranged on the workpiece supporting plate 401.

[0068] The transverse synchronous retaining assembly 11 of the application comprises a synchronous vertical shaft arranged on the intermediate transfer plate 303, a synchronous vertical hole is arranged on the rectangular parallel retaining piece, and the synchronous vertical shaft is inserted into the synchronous vertical hole.

[0069] Since the up-down spacing between the intermediate transfer plate 303 and the rectangular parallel retaining piece 604 changes constantly, at this time, the synchronous vertical shaft 111 and the synchronous vertical hole 112 cooperate to keep the same transverse position.

[0070] The above shows and describes the basic principles and main features of the present application and the advantages of the present application, and those skilled in the art should understand that the present application is not limited to the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principles of the present application, and various changes and improvements can be made without departing from the spirit and scope of the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. An automatic feeding and discharging structure applied in a laser welding machine, comprising a processing device (1), characterized in that: The processing device (1) is provided with a stacking device (2) for stacking first welding pieces, the processing device (1) is provided with a workpiece transfer device (3) capable of moving the lowermost one of the first welding pieces to one side, the processing device (1) is provided with a transfer base (4) for transferring second welding pieces, the processing device (1) is provided with a guide rail (5) and a balance holding mechanism (6), the processing device (1) is provided with an upper fixed limiting plate (10) capable of cooperating with the transfer base (4) to fix the first welding pieces and the second welding pieces, the workpiece transfer device (3) is provided with a rotary welding head assembly (7) for surrounding welding at the connection between the first welding pieces and the second welding pieces, the processing device (1) is provided with a discharging channel (8), a one-way discharging assembly (9) is arranged between the discharging channel (8) and the guide rail (5), and a transverse synchronous holding assembly (11) for keeping the same transverse position is arranged between the workpiece transfer device (3) and the transfer base (4); The guide rail (5) is used to drive the transfer base (4) to move along a reverse "L" type path, and make the transfer base (4) move from the bottom through the stacking device (2) to one side; The balance holding mechanism (6) is used to keep the balance of the transfer base (4) during movement; The one-way discharging assembly (9) can drive the completed welding workpiece to the discharging channel (8) when the transfer base (4) is lowered.

2. The automatic feeding and discharging structure applied in a laser welding machine according to claim 1, characterized in that: The processing device (1) comprises a shell (101), and the shell (101) is provided with a device base (102) therein.

3. The automatic feeding and discharging structure applied in a laser welding machine according to claim 2, characterized in that: The stacking device (2) comprises a storage tube (201) arranged on the shell (101), and a plurality of stacked tube-shaped pieces are stored in the storage tube (201); The workpiece transfer device (3) comprises a fixed support (301) arranged on the device base (102), and the fixed support (301) is provided with a transverse rail (302), the transverse rail (302) is provided with an intermediate transfer plate (303), the intermediate transfer plate (303) is provided with a through hole (304), and a downward elastic limiting plate (305) is arranged below the intermediate transfer plate (303); The through hole (304) is arranged in alignment with the lower end of the storage tube (201); The downward elastic limiting plate (305) is used to limit the downward distance of the first welding piece.

4. The automatic feeding and discharging structure applied in a laser welding machine according to claim 3, characterized in that: The downward elastic limiting plate (305) comprises a plate movable seat (3051) arranged on the fixed support (301), a movable limiting plate (3052) is movably arranged in the plate movable seat (3051), and an elastic structure (3053) for outwardly pressing the movable limiting plate (3052) is arranged in the plate movable seat (3051).

5. The automatic feeding and discharging structure applied in a laser welding machine according to claim 4, characterized in that: The guide rail (5) comprises a main plate (501) arranged on the equipment base (102), an L-shaped guide groove (502) is arranged on the main plate (501), a movable shaft body (503) is movably arranged in the L-shaped guide groove (502), a motor driving assembly (504) and a swing main shaft (505) are arranged on the main plate (501), the motor driving assembly (504) and the swing main shaft (505) are rotationally driven through a gear transmission assembly, a swing rod (506) is arranged at the rear end of the swing main shaft (505), the swing rod (506) covers the range of the L-shaped guide groove (502) in length, a straight slot (507) is arranged on the swing rod (506), the movable shaft body (503) is inserted into the straight slot (507), and the transfer base (4) and the movable shaft body (503) are fixedly connected at the front end. When the transfer base (4) is lifted upward, the first welding piece and the second welding piece are pressed and clamped by cooperation with the upper fixed limiting plate (10).

6. The automatic feeding and discharging structure applied in a laser welding machine according to claim 5, characterized in that: The L-shaped guide groove (502) comprises a vertical groove (5021) and a horizontal straight groove (5022) arranged above the right side of the vertical groove (5021), and a diagonal straight groove (5023) is connected between the vertical groove (5021) and the horizontal straight groove (5022).

7. The automatic feeding and discharging structure applied in a laser welding machine according to claim 6, characterized in that: The balance maintaining mechanism (6) comprises a vertical lifting guide rod (601) arranged on the equipment base (102), a vertical lifting piece (602) movably mounted on the vertical lifting guide rod (601), a horizontal straight groove (603) arranged on the vertical lifting piece (602), a rectangular parallel maintaining piece (604) arranged at the rear end of the movable shaft body (503), and the rectangular parallel maintaining piece (604) is movably arranged in the horizontal straight groove (603) and moves with one side closely attached to the inner wall surface of the horizontal straight groove (603).

8. The automatic feeding and discharging structure applied in a laser welding machine according to claim 7, characterized in that: The rotary welding head assembly (7) comprises an annular groove (701) arranged outside the through hole (304), the annular groove (701) is arranged on the lower surface of the intermediate transfer plate (303), an annular rotary seat (702) is rotatably arranged in the annular groove (701), a plurality of laser welding heads (703) are arranged on the annular rotary seat (702) and face the welding seam position, a control motor assembly (704) is arranged on the intermediate transfer plate (303) and used for driving the annular rotary seat (702) to reciprocatingly rotate, and a transmission gear assembly is arranged between the control motor assembly (704) and the annular rotary seat (702) for transmission.

9. The automatic feeding and discharging structure applied in a laser welding machine according to claim 8, characterized in that: The unidirectional discharge assembly (9) comprises a central rotating shaft (901) arranged between the discharge channel (8) and the vertical slot (5021), the central rotating shaft (901) is provided with a transfer swing plate (903), the main plate (501) is provided with a reset coil spring assembly (902), the reset coil spring assembly (902) is connected with the central rotating shaft (901), the reset coil spring assembly (902) can keep the transfer swing plate (903) in a downward overturning state, the main plate (501) is provided with a limiting block (904) for limiting the downward overturning angle of the transfer swing plate (903), the transfer base (4) is provided with a staggered slot (905), the transfer swing plate (903) can pass through the staggered slot (905); When the transfer base (4) is placed with the second welding part and moves upward, the transfer swing plate (903) is pushed to overturn upward and pass through the transfer swing plate (903); When the transfer base (4) is placed with the second welding part and moves downward, the transfer swing plate (903) cannot pass through the transfer swing plate (903), so that the welding completed workpiece falls on the transfer swing plate (903) and is discharged to the discharge channel (8); the transfer base (4) comprises a workpiece support plate (401), and the workpiece support plate (401) is provided with a workpiece positioning and mounting slot (402).

10. The automatic feeding and discharging structure applied in a laser welding machine according to claim 9, characterized in that: The transverse synchronous retaining assembly (11) comprises a synchronous vertical shaft (111) arranged on the intermediate transfer plate (303), and the rectangular parallel retaining part (604) is provided with a synchronous vertical hole (112), and the synchronous vertical shaft (111) is inserted into the synchronous vertical hole (112).

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