A workpiece automated welding production line

Abstract

The present invention discloses an automated welding production line for workpieces, belonging to the field of automated welding technology. An automated welding production line for workpieces includes a frame, and also includes: a feeding part, the feeding part includes a first feeding assembly and a second feeding assembly, the first feeding assembly and the second feeding assembly are respectively arranged on both sides of the frame; a welding part, the welding part is arranged at the end of the first feeding assembly; a feeding positioning part, the feeding positioning part is arranged on one side of the second feeding assembly, and is used to convey materials to be welded to the welding part and to transfer welded materials from the welding part; wherein the feeding positioning part includes a pushing mechanism for positioning materials and a feeding mechanism arranged on the pushing mechanism for conveying materials; the present invention facilitates the rapid removal of the welded workpiece, avoids the processing gap caused by replacing the workpiece, and thus improves the processing efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of automated welding, and in particular to an automated welding production line for workpieces. Background Art

[0002] With the increase in product types and the continuous improvement of product quality requirements, welding automation equipment has higher requirements for welding technology, so many products that originally had manual welding have more and more needs and requirements for welding automation equipment. Develop and apply microcomputer automation control technology in welding equipment, such as CNC welding power supply, intelligent welding machine, fully automatic special welding machine and flexible welding robot workstation, to achieve unmanned operation, that is, to achieve CNC, automation and intelligence of welding production.

[0003] However, the automated welding production line in the prior art is not convenient for continuous loading and unloading of welded workpieces. After welding, the workpieces need to be withdrawn from the welding position by a feeding device for easy handling and stacking, and then new workpieces are placed on the feeding device for feeding and welding. The operation is relatively cumbersome and there are processing gaps, which also reduces the welding efficiency of the workpieces. Summary of the invention

[0004] The purpose of the present invention is to solve the problems existing in the prior art and to propose an automated welding production line for workpieces.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A workpiece automated welding production line, comprising a frame, and also comprising:

[0007] A feeding part, the feeding part comprises a first feeding assembly and a second feeding assembly, the first feeding assembly and the second feeding assembly are respectively arranged on two sides of the frame;

[0008] A welding portion, the welding portion being arranged at the end of the first feeding assembly;

[0009] A material feeding positioning part, which is arranged on one side of the second feeding assembly and is used to feed the material to be welded to the welding part and to transfer the welded material from the welding part;

[0010] Wherein, the material feeding and positioning part includes a pushing mechanism for positioning the material and a material feeding mechanism arranged on the pushing mechanism for conveying the material.

[0011] Preferably, the first feeding assembly includes a first support fixed on the frame, an electric cylinder fixed on the first support, a pin arranged at the movable end of the electric cylinder, and two material storage clamps arranged on the first support, and the two material storage clamps are placed at the front end of the pin.

[0012] Preferably, the first support is rotatably connected with a first screw, a first motor fixed on the first support and used to drive the first screw to rotate, and two sleeves threadedly connected to the first screw, and the two sleeves are respectively connected to two material storage clamps one by one.

[0013] Preferably, the welding part includes a welding seat arranged at the end of the first feeding assembly, a first cylinder arranged on the welding seat, and a first push plate arranged at the movable end of the first cylinder, the welding seat is provided with a welding station and a discharging station, a stop seat is fixedly provided on the welding station, a stop block is fixedly provided on the discharging station, the stop seat is arranged on a side of the welding seat away from the first push plate, and the stop block is arranged at the end of the storage clamp.

[0014] Preferably, the second feeding assembly includes a plurality of conveying rollers rotatably connected to the frame, a second motor fixed to the frame, a sprocket arranged on the ends of the conveying rollers and the output shaft of the second motor, and a chain drivingly connected to the sprocket.

[0015] Preferably, the frame is also rotatably connected to a plurality of auxiliary rollers, the auxiliary rollers are coaxially arranged with the conveying rollers, and the auxiliary rollers and the pushing mechanism are respectively arranged on both sides of the second feeding assembly.

[0016] Preferably, the pushing mechanism includes a support plate fixed on the frame, a second screw rotatably connected to the support plate, a third motor fixed on the support plate and used to drive the second screw to rotate, a moving block threadedly connected to the second screw, a first pneumatic elastic telescopic tube arranged on the moving block, an elastic telescopic rod fixedly connected to the first pneumatic elastic telescopic tube, and a conveying plate arranged at the end of the elastic telescopic rod, and the feeding mechanism is arranged on the conveying plate.

[0017] Preferably, the feeding mechanism includes a plurality of rotating rods rotatably connected to the conveying plate and feeding rollers arranged on the rotating rods, matching synchronous wheels are arranged between two adjacent rotating rods, a synchronous belt is arranged between two adjacent synchronous wheels, a driven gear is arranged on one of the rotating rods, and a rack plate meshing with the driven gear is arranged on the elastic telescopic rod.

[0018] Preferably, a support plate is fixedly provided on the conveying plate, a second pneumatic elastic telescopic tube is fixedly provided on the support plate, an air guide tube is arranged between the second pneumatic elastic telescopic tube and the first pneumatic elastic telescopic tube, a connecting seat is fixedly provided on the second pneumatic elastic telescopic tube, a baffle rod is rotatably connected to the connecting seat via a pin shaft, a torsion spring for driving the baffle rod to reset and rotate is sleeved on the pin shaft, and a ratchet that resists the movement of the baffle rod is arranged on the rotating rod.

[0019] Preferably, it also includes a welding robot and a handling robot arranged on the side of the frame, and the welding robot and the handling robot are respectively arranged on both sides of the frame, the welding robot is used to weld the materials on the welding station, and the handling robot is used to transfer the materials moved out of the welding station.

[0020] Compared with the prior art, the present invention provides an automated welding production line for workpieces, which has the following beneficial effects:

[0021] 1. The workpiece automated welding production line can convey the materials to be welded to the welding part and transfer the welded materials from the welding part by setting the feeding and positioning part, so as to facilitate the rapid removal of the welded workpieces and will not hinder the normal transportation of the workpieces to be welded. It replaces the traditional technology of first removing the welded workpieces from the feeding equipment and then placing the workpieces to be welded, thus reducing the processing gap caused by changing the workpieces, thereby improving the processing efficiency.

[0022] 2. The workpiece automated welding production line is equipped with a telescopic connection seat to facilitate the feeding roller to convey the workpiece when the feeding positioning part pushes the workpiece. After the feeding positioning part conveys the workpiece to the welding station, the feeding roller is limited to ensure the stable limitation of the workpiece by the feeding positioning part, so as to avoid the workpiece from loosening during welding and ensure the welding quality of the workpiece.

[0023] 3. The workpiece automated welding production line is provided with two storage clamps, one for working loading and the other for standby loading. When the workpiece in the storage clamp used for working loading is used up, the first screw is controlled to rotate and the positions of the two storage clamps are adjusted so that the storage clamp originally used for standby loading is moved to the working loading position. At this time, the other empty storage clamp can be loaded, further reducing the processing gap caused by replenishing the workpiece, thereby improving the processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 is a side view of the first feeding assembly of the present invention;

[0026] Figure 3 A top view of the first feeding assembly and the welding portion of the present invention;

[0027] Figure 4 It is a structural schematic diagram of the second feeding assembly of the present invention;

[0028] Figure 5 The structure diagram of the feeding positioning part of the present invention is shown in FIG. Figure 1 ;

[0029] Figure 6 For the present invention Figure 5 A partial enlarged structural diagram of the middle part;

[0030] Figure 7 The structure diagram of the feeding positioning part of the present invention is shown in FIG. Figure 2 ;

[0031] Figure 8 For the present invention Figure 7 A schematic diagram of the partially enlarged structure of the middle B part;

[0032] Fig. 9 It is a schematic diagram of the structure of the exterior of the second pneumatic elastic telescopic tube of the present invention;

[0033] Fig.10 It is a schematic diagram of the cross-sectional structure of the conveying plate of the present invention;

[0034] Fig.11 It is a schematic cross-sectional structure diagram of the first pneumatic elastic telescopic tube of the present invention.

[0035] In the figure: 1, frame; 2, first feeding assembly; 201, first support; 202, electric cylinder; 203, top head; 204, material storage clamp; 205, first screw; 206, first motor; 207, sleeve; 3, second feeding assembly; 301, conveying roller; 302, second motor; 303, sprocket; 4, welding part; 401, welding seat; 402, first cylinder; 403, first push plate; 404, stop seat; 405, stop block; 5, feeding positioning part; 6, auxiliary roller; 7 , support plate; 701, second screw; 702, third motor; 703, moving block; 704, first pneumatic elastic telescopic tube; 705, elastic telescopic rod; 7051, rack plate; 706, conveying plate; 8, rotating rod; 801, feed roller; 802, synchronous wheel; 803, driven gear; 9, support plate; 901, second pneumatic elastic telescopic tube; 902, connecting seat; 903, stop rod; 10, air guide tube; 11, ratchet; 12, welding robot; 13, handling robot. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0037] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0038] Example 1: Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 , a workpiece automated welding production line, comprising a frame 1, and also comprising:

[0039] A feeding part, the feeding part comprises a first feeding assembly 2 and a second feeding assembly 3, and the first feeding assembly 2 and the second feeding assembly 3 are respectively arranged on both sides of the frame 1;

[0040] A welding portion 4, which is arranged at the end of the first feeding assembly 2;

[0041] The material feeding positioning part 5 is arranged on one side of the second feeding assembly 3, and is used to convey the material to be welded to the welding part 4 and to transfer the welded material from the welding part 4;

[0042] The material feeding and positioning part 5 includes a pushing mechanism for positioning the material and a material feeding mechanism arranged on the pushing mechanism for conveying the material.

[0043] Furthermore, the welding part 4 includes a welding seat 401 arranged at the end of the first feeding assembly 2, a first cylinder 402 arranged on the welding seat 401, and a first push plate 403 arranged at the movable end of the first cylinder 402. The welding seat 401 is provided with a welding station and a discharging station. A stopper 404 is fixedly provided on the welding station, and a stopper 405 is fixedly provided on the discharging station. The stopper 404 is arranged on a side of the welding seat 401 away from the first push plate 403, and the stopper 405 is arranged at the end of the storage clamp 204.

[0044] Furthermore, the second feeding assembly 3 includes a plurality of conveying rollers 301 rotatably connected to the frame 1, a second motor 302 fixed to the frame 1, a sprocket 303 arranged at the end of the conveying roller 301 and on the output shaft of the second motor 302, and a chain drivingly connected to the sprocket 303.

[0045] Furthermore, a plurality of auxiliary rollers 6 are rotatably connected to the frame 1 . The auxiliary rollers 6 are coaxially arranged with the conveying rollers 301 . The auxiliary rollers 6 and the pushing mechanism are respectively arranged on both sides of the second feeding assembly 3 .

[0046] Furthermore, it also includes a welding robot 12 and a handling robot 13 arranged on the side of the frame 1. The welding robot 12 and the handling robot 13 are respectively arranged on both sides of the frame 1. The welding robot 12 is used to weld the materials on the welding station, and the handling robot 13 is used to transport the materials moved out of the welding station.

[0047] Specifically, the first feeding assembly 2 places the workpiece to be welded at the unloading station, and the workpiece is stopped and limited by the block 405, and then the first cylinder 402 drives the first push plate 403 to move, so that the first push plate 403 pushes the workpiece to be welded placed at the unloading station to the welding station until it is limited by the block seat 404, and the welding robot 12 and the handling robot 13 are in a state of waiting for welding, and the second feeding assembly 3 cooperates with the feeding and positioning part 5 to transport and position the other workpiece to be welded from the conveying roller 301 to the welding station of the welding part 4. At this time, the two workpieces to be welded are in contact, and the welding robot 12 performs welding operations on the two workpieces to be welded, and then the feeding and positioning part 5 is reset and moved back. During this period, the feeding and positioning part 5 transports the welded workpiece to the outside of the welding station, and the welded workpiece is moved from the welding station to the auxiliary roller 6, and the handling robot 13 grabs the workpiece and transports it to the stacking position and then returns to its original position to wait for the next cycle; the present invention facilitates the rapid removal of the welded workpiece, avoids the processing gap caused by replacing the workpiece, and thus improves the processing efficiency.

[0048] Example 2: Reference Figure 1 , Figure 2 and Figure 3 , an automated welding production line for workpieces, based on Example 1, further, the first feeding assembly 2 includes a first support 201 fixed on the frame 1, an electric cylinder 202 fixed on the first support 201, a top head 203 arranged at the movable end of the electric cylinder 202, and two material storage clamps 204 arranged on the first support 201, and the two material storage clamps 204 are placed at the front end of the top head 203.

[0049] Furthermore, the first support 201 is rotatably connected to a first screw 205, a first motor 206 fixed on the first support 201 and used to drive the first screw 205 to rotate, and two sleeves 207 threadedly connected to the first screw 205, and the two sleeves 207 are respectively connected to the two material storage clamps 204 one by one.

[0050] Specifically, two material storage clamps 204 are provided, one for working loading and the other for standby loading. When the workpiece in the material storage clamp 204 used for working loading is used up, the first motor 206 is controlled to drive the first screw 205 to rotate, so that the sleeve 207 drives the material storage clamp 204 to move, and then the positions of the two material storage clamps 204 are adjusted, so that the material storage clamp 204 originally used for standby loading is moved to the working loading position to facilitate the subsequent workpiece to be welded to be pushed to the unloading station by the head 203. At this time, the other empty material storage clamp 204 can be loaded, further reducing the processing gap caused by the replenishment of workpieces, thereby improving the processing efficiency.

[0051] Example 3: Reference Figure 1 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 , Fig.10 and Fig.11 , a workpiece automated welding production line, based on Example 2, further, the pushing mechanism includes a support plate 7 fixedly mounted on the frame 1, a second screw 701 rotatably connected to the support plate 7, a third motor 702 fixedly mounted on the support plate 7 and used to drive the second screw 701 to rotate, a moving block 703 threadedly connected to the second screw 701, a first pneumatic elastic telescopic tube 704 arranged on the moving block 703, an elastic telescopic rod 705 fixedly connected to the first pneumatic elastic telescopic tube 704, and a conveying plate 706 arranged at the end of the elastic telescopic rod 705, and the feeding mechanism is arranged on the conveying plate 706.

[0052] Furthermore, the feeding mechanism includes a plurality of rotating rods 8 rotatably connected to the conveying plate 706 and a feeding roller 801 arranged on the rotating rods 8, a matching synchronous wheel 802 is arranged between two adjacent rotating rods 8, a synchronous belt is arranged between two adjacent synchronous wheels 802, a driven gear 803 is arranged on one of the rotating rods 8, and a rack plate 7051 meshing with the driven gear 803 is arranged on the elastic telescopic rod 705.

[0053] Furthermore, a support plate 9 is fixedly provided on the conveying plate 706, a second pneumatic elastic telescopic tube 901 is fixedly provided on the support plate 9, an air guide tube 10 is provided between the second pneumatic elastic telescopic tube 901 and the first pneumatic elastic telescopic tube 704, a connecting seat 902 is fixedly provided on the second pneumatic elastic telescopic tube 901, a baffle rod 903 is rotatably connected to the connecting seat 902 via a pin shaft, a torsion spring for driving the baffle rod 903 to reset and rotate is sleeved on the pin shaft, and a ratchet 11 that resists the movement of the baffle rod 903 is provided on the rotating rod 8.

[0054] Specifically, the second feeding assembly 3 conveys the workpiece to be welded through the conveying roller 301. When the workpiece to be welded moves to between the auxiliary roller 6 and the feeding positioning part 5, the third motor 702 is controlled to run, and the output shaft of the third motor 702 drives the second screw 701 to rotate, and the moving block 703 moves axially along the second screw 701. The moving block 703 drives the conveying plate 706 to move horizontally through the first pneumatic elastic telescopic tube 704 and the elastic telescopic rod 705, so that the conveying plate 706 pushes the workpiece to be welded on the conveying roller 301. During this period, the conveying roller 301 still keeps conveying the workpiece to be welded. After the workpiece to be welded is pushed to the auxiliary roller 6, the conveying plate 706 continues to push the workpiece to be welded. After the workpiece to be welded is pushed to the other side of the auxiliary roller 6, The elastic telescopic rod 705 is compressed first because the stiffness coefficient of the elastic element inside the elastic telescopic rod 705 is smaller than that of the elastic element inside the first pneumatic elastic telescopic tube 704, so that the rack plate 7051 at the end of the elastic telescopic rod 705 is meshed with the driven gear 803 for transmission, and the driven gear 803 drives the rotating rod 8 connected thereto to rotate, and the other rotating rods 8 rotate together under the action of the synchronous wheel 802 and the synchronous belt, so that the feeding roller 801 outside the rotating rod 8 conveys the workpiece to be welded that is blocked and limited, and the workpiece to be welded continues to move toward the welding station on the auxiliary roller 6. After the workpiece to be welded on the auxiliary roller 6 contacts the workpiece conveyed to the welding station by the first feeding assembly 2, the workpiece to be welded cannot be conveyed any further. The second screw 701 continues to rotate, the first pneumatic elastic telescopic tube 704 is compressed, the air in the first pneumatic elastic telescopic tube 704 is introduced into the second pneumatic elastic telescopic tube 901 through the air guide tube 10, the second pneumatic elastic telescopic tube 901 is stretched and pushes the connecting seat 902 to drive the blocking rod 903 to move, so that the blocking rod 903 limits the rotation of the ratchet 11, and prevents the feed roller 801 from rotating randomly when the conveying plate 706 is clamped and positioned for welding, thereby ensuring the stable positioning of the feed positioning part 5 on the workpiece, preventing the workpiece from loosening during welding, and ensuring the welding quality of the workpiece; after the welding of the workpiece is completed, the second screw 701 rotates in the opposite direction, the moving block 703 moves back along the second screw 701, and the first pneumatic elastic telescopic tube 704 is restored first, so that the second The pneumatic elastic telescopic tube 901 drives the connecting seat 902 to reset, releasing the restriction on the ratchet 11, and then the elastic telescopic rod 705 is restored, the rack plate 7051 is meshed with the driven gear 803, and the conveying plate 706 conveys the welded workpiece still placed on the auxiliary roller 6 in a direction away from the welding station, so as to facilitate the subsequent handling robot 13 to transport and stack the workpieces. At this time, the second feeding assembly 3 can still transport the next workpiece to be welded. The reset conveying plate 706 repeatedly pushes and positions the workpiece to be welded that is moved to the corresponding position, replacing the traditional technology of first removing the welded workpiece on the feeding equipment and then placing the workpiece to be welded for transportation, thereby reducing the processing gap caused by replacing the workpiece, thereby improving the processing efficiency.

[0055] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An automated workpiece welding production line, comprising a frame (1), characterized in that: Also includes: A material feeding section, the material feeding section comprising a first material feeding assembly (2) and a second material feeding assembly (3), the first material feeding assembly (2) and the second material feeding assembly (3) being respectively arranged on two sides of the frame (1); A welding portion (4), wherein the welding portion (4) is arranged at the end of the first feeding assembly (2); A material feeding positioning portion (5), the material feeding positioning portion (5) being arranged on one side of the second material feeding assembly (3) and being used for conveying materials to be welded to the welding portion (4) and for transferring welded materials from the welding portion (4); Wherein, the material feeding and positioning part (5) comprises a pushing mechanism for positioning the material and a material feeding mechanism arranged on the pushing mechanism for conveying the material; The pushing mechanism comprises a support plate (7) fixedly mounted on the frame (1), a second screw rod (701) rotatably connected to the support plate (7), a third motor (702) fixedly mounted on the support plate (7) and used for driving the second screw rod (701) to rotate, a moving block (703) threadedly connected to the second screw rod (701), a first pneumatic elastic telescopic tube (704) arranged on the moving block (703), an elastic telescopic rod (705) fixedly connected to the first pneumatic elastic telescopic tube (704), and a conveying plate (706) arranged at the end of the elastic telescopic rod (705), and the feeding mechanism is arranged on the conveying plate (706); The feeding mechanism comprises a plurality of rotating rods (8) rotatably connected to a conveying plate (706) and a feeding roller (801) arranged on the rotating rods (8); a matching synchronous wheel (802) is arranged between two adjacent rotating rods (8); a synchronous belt is arranged between two adjacent synchronous wheels (802); a driven gear (803) is arranged on one of the rotating rods (8); and a rack plate (7051) meshing with the driven gear (803) is arranged on the elastic telescopic rod (705); A support plate (9) is fixedly provided on the conveying plate (706), a second pneumatic elastic telescopic tube (901) is fixedly provided on the support plate (9), an air guide tube (10) is provided between the second pneumatic elastic telescopic tube (901) and the first pneumatic elastic telescopic tube (704), a connecting seat (902) is fixedly provided on the second pneumatic elastic telescopic tube (901), a blocking rod (903) is rotatably connected to the connecting seat (902) via a pin shaft, a torsion spring for driving the blocking rod (903) to return and rotate is sleeved on the pin shaft, and a ratchet (11) for movably abutting against the blocking rod (903) is provided on the rotating rod (8).

2. The workpiece automated welding production line according to claim 1, characterized in that: The first feeding assembly (2) comprises a first support (201) fixed on the frame (1), an electric cylinder (202) fixed on the first support (201), a top head (203) arranged at a movable end of the electric cylinder (202), and two material storage clamps (204) arranged on the first support (201), wherein the two material storage clamps (204) are placed at the front end of the top head (203).

3. The workpiece automated welding production line according to claim 2, characterized in that: The first support (201) is rotatably connected to a first screw rod (205), a first motor (206) fixed to the first support (201) and used to drive the first screw rod (205) to rotate, and two sleeves (207) threadedly connected to the first screw rod (205), the two sleeves (207) being respectively connected to the two material storage clamps (204) in a one-to-one correspondence.

4. The workpiece automated welding production line according to claim 3, characterized in that: The welding portion (4) comprises a welding seat (401) arranged at the end of the first feeding assembly (2), a first cylinder (402) arranged on the welding seat (401), and a first push plate (403) arranged at the movable end of the first cylinder (402); a welding station and a discharging station are arranged on the welding seat (401); a stopper (404) is fixedly arranged on the welding station; a stopper (405) is fixedly arranged on the discharging station; the stopper (404) is arranged on a side of the welding seat (401) away from the first push plate (403); and the stopper (405) is arranged at the end of the material storage clamp (204).

5. The workpiece automated welding production line according to claim 4, characterized in that: The second feeding assembly (3) comprises a plurality of conveying rollers (301) rotatably connected to the frame (1), a second motor (302) fixedly mounted on the frame (1), a sprocket (303) arranged at the ends of the conveying rollers (301) and on the output shaft of the second motor (302), and a chain drivingly connected to the sprocket (303).

6. The workpiece automated welding production line according to claim 5, characterized in that: The frame (1) is also rotatably connected to a plurality of auxiliary rollers (6), the auxiliary rollers (6) being coaxially arranged with the conveying rollers (301), and the auxiliary rollers (6) and the pushing mechanism being respectively arranged on both sides of the second feeding assembly (3).

7. The workpiece automated welding production line according to claim 6, characterized in that: It also includes a welding robot (12) and a handling robot (13) arranged on the side of the frame (1), wherein the welding robot (12) and the handling robot (13) are respectively arranged on both sides of the frame (1), the welding robot (12) is used to weld materials on the welding station, and the handling robot (13) is used to transfer materials moved out of the welding station.

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