Arc starting mechanism and welding equipment

Abstract

The utility model relates to the technical field of welding equipment, and discloses an arcing mechanism and welding equipment. The arcing mechanism comprises a mounting footstand; the storage structure is arranged on the mounting footstand, a plurality of arc starting plates are stored in the storage structure, and a discharging channel is formed in the bottom of the storage structure; the bearing seat is arranged on one side of the storage structure and is suitable for bearing the arc starting plate pushed out of the storage structure; and the push-out driving piece is arranged on one side of the storage structure, and the push-out driving piece is suitable for pushing the arc starting plate at the bottom of the storage structure to the bearing seat. According to the welding robot, arc starting is directly conducted on the arc starting plate, welding of the workpiece is conducted after welding is stable, arc starting on the to-be-welded workpiece is not needed, the welding quality of the initial position of the welding seam on the workpiece is guaranteed, and the problem that the welding quality of the initial position of the long and straight welding seam is poor due to arc starting of the welding robot on the workpiece is effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of welding equipment, in particular to an arc starting mechanism and welding equipment. Background Art

[0002] At present, long straight welds are a common type of welding in medium and thick plates. In manual welding, an arc starting plate is often welded in advance before the starting position of the weld, so that the arc can be started on the arc starting plate, and welding can be carried out at the workpiece after the arc welding is stable.

[0003] In the prior art, robots are generally used to replace manual labor to complete welding tasks. The arc welding gun of the welding robot directly strikes the arc on the workpiece when welding long straight welds, resulting in poor welding quality at the starting position of the long straight weld and a low pass rate of the workpiece. Utility Model Content

[0004] In view of this, the utility model provides an arc starting mechanism and a welding device to solve the problem that the welding quality at the starting position of a long straight weld caused by an arc started by a welding robot on a workpiece is poor.

[0005] In the first aspect, the utility model provides an arc-starting mechanism, including: a mounting foot; a storage structure, which is arranged on the mounting foot, in which a plurality of arc-starting plates are stored, and the bottom of the storage structure has a discharge channel; a supporting seat, which is arranged on one side of the storage structure and is suitable for receiving the arc-starting plate pushed out from the storage structure; an ejection drive member, which is arranged on one side of the storage structure, and the ejection drive member is suitable for pushing the arc-starting plate at the bottom of the storage structure onto the supporting seat.

[0006] Beneficial effect: Before the welding robot welds the workpiece to be welded, the arc-starting plate at the bottom of the storage structure is pushed out from the discharge channel by pushing out the driving part, and the arc-starting plate is docked with the workpiece to be welded. The welding gun of the welding robot first strikes an arc on the arc-starting plate, and then welds on the workpiece to be welded after arcing. After adopting the above arc-starting mechanism, the arc is directly struck on the arc-starting plate, and welding is performed on the workpiece after the welding is stable. There is no need to strike the arc on the workpiece to be welded, which ensures the welding quality at the starting position of the weld on the workpiece, and effectively solves the problem of poor welding quality at the starting position of the long straight weld caused by the welding robot striking the arc on the workpiece. In addition, the arc-starting mechanism can be perfectly combined with the welding robot, which can meet the needs of automatic production lines and unmanned production lines, and there is no need for manual work such as welding arc-starting plates in advance on the basis of the original product workpiece; a certain amount of cache can be achieved through the storage structure, and there is no need for manual attention at all times. The consistency and position accuracy are greatly improved, and the consistency deviation of manual operation is avoided.

[0007] In an optional embodiment, the arc starting mechanism further includes a lifting drive component, which is connected to the supporting seat to lift the arc starting plate on the supporting seat to a docking position with the workpiece to be welded.

[0008] Beneficial effect: The lifting drive component lifts the bearing seat to the arc starting height to ensure the consistency of arc starting height, avoid the influence of inconsistent height on the welding wire and cause poor welding quality, thereby ensuring the welding quality. When the welding robot completes welding, the lifting drive component lifts the bearing seat upward to break the fuse that adheres to the arc starting plate and the workpiece, which can effectively avoid the situation where the arc starting plate and the workpiece are adhered.

[0009] In an optional embodiment, the arc starting mechanism further includes a first shield, which is fixed on the mounting foot and is disposed outside the driving end of the lifting drive member.

[0010] Beneficial effect: The first shield can protect the driving end of the lifting drive member and prevent the driving end from being polluted by dust generated during welding.

[0011] In an optional embodiment, the arc striking mechanism further comprises a second shield, which is fixed on the mounting foot and is arranged on the outer side of the driving end of the ejection driving member.

[0012] Beneficial effect: The second shield can protect the driving end of the ejection drive member, and prevent the driving end from being polluted by dust generated during welding.

[0013] In an optional embodiment, a push block is provided on the driving end of the ejection drive member, and the push block is suitable for cooperating with one side of the arc starting plate.

[0014] Beneficial effect: The contact area between the push block and the arc starting plate is large, so that the arc starting plate is evenly stressed, thus avoiding the situation where the arc starting plate tilts after being pushed out.

[0015] In an optional embodiment, the moving direction of the push block is perpendicular to the extending direction of the bearing seat.

[0016] Beneficial effect: When the arc-starting plate on the supporting seat has struck arcs many times, it is necessary to replace the arc-starting plate. The arc-starting plate at the bottom of the storage structure is pushed out by pushing out the driving member, thereby pushing the movement of the arc-starting plate on the supporting seat. The arc-starting plate on the supporting seat can be pushed out of the supporting seat, and then the arc-starting plate can be replaced. The moving direction of the push block is perpendicular to the extension direction of the supporting seat, which facilitates the replacement of the arc-starting plate, and the structure of the arc-starting mechanism is simple.

[0017] In an optional embodiment, the ejection drive member is an ejection drive cylinder.

[0018] Beneficial effect: By pushing out the driving cylinder and repeating the operation, the consistency of the arc starting plate position is ensured, avoiding the problem of inconsistent manual welding.

[0019] In an optional embodiment, the arc starting mechanism further includes a guide structure, which is disposed on one side of the mounting foot and is suitable for guiding the lifting and lowering of the supporting base.

[0020] Beneficial effect: The lifting and lowering of the bearing seat is guided by the guide structure, making the movement of the lifting seat more stable and reliable.

[0021] In the second aspect, the utility model also provides a welding device, including: a bearing structure, suitable for bearing the workpiece to be welded; the above-mentioned arc starting mechanism, arranged on one side of the bearing structure; a welding robot, suitable for starting an arc on the arc starting plate of the arc starting mechanism and welding the workpiece to be welded after arc starting.

[0022] In an optional embodiment, the position of the arc striking mechanism is adjustable.

[0023] Beneficial effects: By adjusting the position of the arc starting mechanism to adapt to the welding of different products, it can adapt to the production of a series of products in different size ranges. It has a wide range of applications and does not require manual identification and adjustment of the position and posture. The flexibly designed arc starting mechanism can meet the end arc starting requirements of different types of workpieces. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 It is a three-dimensional diagram of an arc starting mechanism according to an embodiment of the utility model.

[0026] Description of reference numerals:

[0027] 1. Mounting foot; 2. Storage structure; 301. Bearing seat; 302. Lifting drive member; 401. Push block; 402. Pushing drive member; 5. First protective cover; 6. Second protective cover; 7. Guide structure; 8. Arc starting plate; 9. Support plate. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0029] Combine the following Figure 1 , describing an embodiment of the utility model.

[0030] According to an embodiment of the utility model, on the one hand, an arc-starting mechanism is provided, including: a mounting foot 1, a storage structure 2, a supporting seat 301 and an ejection driving member 402, the storage structure 2 is arranged on the mounting foot 1, a plurality of arc-starting plates 8 are stored in the storage structure 2, and the bottom of the storage structure 2 has a discharge channel; the supporting seat 301 is arranged on one side of the storage structure 2 and is suitable for receiving the arc-starting plate 8 ejected from the storage structure 2; the ejection driving member 402 is arranged on one side of the storage structure 2, and the ejection driving member 402 is suitable for pushing the arc-starting plate 8 at the bottom of the storage structure 2 onto the supporting seat 301.

[0031] By using the arc starting mechanism of this embodiment, before the welding robot welds the workpiece to be welded, the arc starting plate 8 at the bottom of the storage structure 2 is pushed out from the discharge channel by pushing out the driving member 402, and the arc starting plate 8 is docked with the workpiece to be welded. The welding gun of the welding robot first starts an arc on the arc starting plate 8, and then welds on the workpiece to be welded after the arc starting. After the arc starting mechanism is adopted, the arc is directly started on the arc starting plate 8, and the welding at the workpiece is performed after the welding is stable. There is no need to start the arc on the workpiece to be welded, which ensures the welding quality at the starting position of the weld on the workpiece, and effectively solves the problem of poor welding quality at the starting position of the long straight weld caused by the arc starting of the welding robot on the workpiece. In addition, the arc starting mechanism can be perfectly combined with the welding robot, which can meet the needs of automatic production lines and unmanned production lines, and there is no need for manual work such as welding arc starting plates in advance on the basis of the original product workpiece; a certain amount of cache can be achieved through the storage structure 2, and there is no need for manual attention at all times. The consistency and position accuracy are greatly improved, and the consistency deviation of manual operation is avoided.

[0032] In one embodiment, the arc-starting mechanism further includes a lifting drive 302, and the lifting drive 302 is connected to the bearing seat 301 to lift the arc-starting plate 8 on the bearing seat 301 to a docking position with the workpiece to be welded. The bearing seat 301 is lifted to the arc-starting height by the lifting drive, so as to ensure the consistency of the arc-starting height, avoid the influence of inconsistent height on the welding wire causing poor welding quality, and thus ensure the welding quality. When the welding robot completes welding, the lifting drive 302 lifts the bearing seat 301 upward, so that the fuse that adheres to the arc-starting plate 8 and the workpiece can be cut off, which can effectively avoid the situation where the arc-starting plate 8 and the workpiece are adhered.

[0033] In another embodiment, the lifting drive member may not be provided, and in this case, the height of the supporting seat 301 remains unchanged.

[0034] In one embodiment, the arc starting mechanism further includes a first shield 5, which is fixed on the mounting foot 1 and covers the outside of the driving end of the lifting drive member 302. The first shield 5 can protect the driving end of the lifting drive member 302 to prevent dust generated during welding from contaminating the driving end.

[0035] Furthermore, the first shield 5 is also provided on the fixed part of the lifting drive member 302. When the lifting drive member 302 is a lifting drive cylinder, the first shield 5 shields the piston rod and the cylinder of the lifting drive cylinder. The lifting drive cylinder is an air cylinder or an oil cylinder, etc., and a clearance opening is provided on the first shield 5, and the clearance opening avoids the joint connected to the lifting drive cylinder.

[0036] In one embodiment, the arc starting mechanism further includes a second shield 6, which is fixed on the mounting foot 1 and covers the outside of the driving end of the ejection drive member 402. The second shield 6 can protect the driving end of the ejection drive member 402 to prevent dust generated during welding from contaminating the driving end.

[0037] Furthermore, the second protective cover 6 is also covered on the fixed part of the ejection drive member 402. When the ejection drive member 402 is an ejection drive cylinder, the first protective cover 5 covers the piston rod and part of the cylinder barrel of the ejection drive cylinder. The ejection drive cylinder is an air cylinder or an oil cylinder, etc. An avoidance opening is opened on the second protective cover 6, and the avoidance opening avoids the joint connected to the ejection drive cylinder.

[0038] In one embodiment, a push block 401 is provided on the driving end of the push-out driving member 402, and the push block 401 is adapted to cooperate with one side of the arc-starting plate 8. The contact area between the push block 401 and the arc-starting plate 8 is large, so that the arc-starting plate 8 is evenly stressed, and the arc-starting plate 8 is prevented from tilting after being pushed out.

[0039] In another embodiment, the push block 401 may not be provided, and the arc starting plate 8 may be pushed directly by pushing out the driving end of the driving member 402 .

[0040] In one embodiment, the moving direction of the push block 401 is perpendicular to the extension direction of the bearing seat 301. When the arc-starting plate 8 on the bearing seat 301 has struck arcs for many times, it is necessary to replace the arc-starting plate 8. The arc-starting plate 8 at the bottom of the storage structure 2 is pushed out by the push-out driving member 402, thereby pushing the arc-starting plate 8 on the bearing seat 301 to move. The arc-starting plate 8 on the bearing seat 301 can be pushed out of the bearing seat 301, thereby replacing the arc-starting plate 8. The moving direction of the push block 401 is perpendicular to the extension direction of the bearing seat 301, which facilitates the replacement of the arc-starting plate 8, and the structure of the arc-starting mechanism is simple.

[0041] Specifically, a waste collection frame and the like are arranged on the other side of the bearing seat 301 . The waste collection frame and the storage structure 2 are arranged on both sides of the bearing seat 301 .

[0042] Furthermore, a groove extending along the extension direction of the supporting seat 301 is provided on the top surface of the supporting seat 301 .

[0043] In one embodiment, the push-out drive member 402 is preferably a push-out drive cylinder, which is a push-out air cylinder or a push-out oil cylinder. The push-out air cylinder repeats the operation to ensure the consistency of the position of the arc-starting plate 8, thereby avoiding the problem of inconsistent manual welding. Of course, the push-out drive member 402 can also be a linear motor, etc., and is not limited to this.

[0044] In one embodiment, the lifting drive member 302 is preferably a lifting drive cylinder, which is a lifting cylinder or a lifting oil cylinder. The lifting cylinder lifts the bearing seat 301 to realize the arc starting plate 8 being transported to the right place, ensuring the consistency of arc starting height, avoiding the influence of inconsistent height on the welding wire, thereby affecting the welding quality. Of course, the lifting drive member 302 can also be a linear motor, etc., and is not limited to this.

[0045] In one embodiment, the arc starting mechanism further includes a guide structure 7, which is disposed on one side of the mounting foot 1 and is suitable for guiding the lifting of the support base 301. The lifting of the support base 301 is guided by the guide structure 7, so that the lifting base moves more stably and reliably.

[0046] Furthermore, the guide structure 7 includes a guide rod and a linear bearing, the guide rod is passed through the linear bearing, and the linear bearing is fixedly connected to the piston rod of the cylinder. The linear bearing moves on the guide rod to guide the movement of the piston rod, so that the movement of the piston rod is stable and accurate.

[0047] In one embodiment, the storage structure 2 is a magazine, which has a simple structure and is easy to use.

[0048] In one embodiment, the arc starting mechanism further includes a support plate 9 , which is fixed on the top surface of the mounting foot 1 , and the clip is disposed on the support plate 9 , and a discharge channel is formed between the bottom of the clip and the support plate 9 .

[0049] According to an embodiment of the utility model, on the other hand, a welding device is also provided, including: a bearing structure, the above-mentioned arc starting mechanism and a welding robot, the bearing structure is suitable for bearing the workpiece to be welded; the above-mentioned arc starting mechanism is arranged on one side of the bearing structure; the welding robot is suitable for starting an arc on the arc starting plate 8 of the arc starting mechanism and welding the workpiece to be welded after arc starting.

[0050] In one embodiment, the position of the arc starting mechanism is adjustable. By adjusting the position of the arc starting mechanism to adapt to the welding of different products, it can adapt to the production of a series of products in different size ranges. It has a wide range of applications and does not require manual identification and adjustment of the position and posture. The flexibly designed arc starting mechanism can meet the end arc starting requirements of different types of workpieces.

[0051] Specifically, the position of the mounting foot 1 is adjustable, so as to facilitate the adjustment of the position of the arc starting mechanism. The mounting foot 1 is provided with a plurality of mounting holes.

[0052] When the welding equipment is welding, the arc starting mechanism cooperates with the welding robot to weld the workpiece, and a suitable number of arc starting plates 8 are placed in the magazine in advance. The push block 401 connected to the piston rod of the pushing cylinder pushes the arc starting plate 8 of the bottom layer in the magazine to a suitable position on the supporting seat 301 through the action of the cylinder. The supporting seat 301 connected to the piston rod of the lifting cylinder lifts the arc starting plate 8 to a suitable position, so that the arc starting plate 8 is docked with the workpiece, that is, the arc starting plate 8 is located on one side of the workpiece, and then the welding robot starts an arc on the arc starting plate 8, and then welds on the workpiece after arc starting.

[0053] Furthermore, the welding robot is specifically an arc welding robot or the like.

[0054] In one embodiment, the bearing structure can be a conveyor line for conveying workpieces, etc. The arc starting mechanism can be combined with a welding robot and an automatic line to realize automatic production of workpieces without manual intervention. At this time, the state of the incoming workpiece is the actual state of the workpiece, and there is no need to manually weld the arc starting plate 8 in advance, avoiding the line stop operation of the automatic line, and also saving the operation time and task of manually cutting the arc starting plate 8 after the robot operation, thereby reducing redundant manual work, realizing fully automatic welding, and avoiding manual work and welding quality problems; the arc starting mechanism has the function of caching multiple arc starting plates 8, and can automatically feed continuous batches of workpieces. The cache storage location can be reasonably designed according to the daily production capacity requirements, and one loading can meet the production needs of the whole day without manual intervention, saving labor and improving the robot's operating efficiency; the arc starting mechanism can be used in combination with multiple stations and can be flexibly installed according to the actual weld position. It has a high degree of flexibility and is conducive to realizing line automation and flexible operation.

[0055] Although the embodiments of the present invention are described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the appended claims.

Claims

1. An arc starting mechanism, characterized in that: include: Install the foot (1); A storage structure (2) is arranged on the mounting foot (1), a plurality of arc-starting plates (8) are stored in the storage structure (2), and a discharge channel is provided at the bottom of the storage structure (2); A bearing seat (301) is arranged on one side of the storage structure (2) and is suitable for receiving the arc starting plate (8) pushed out from the storage structure (2); An ejection drive member (402) is arranged on one side of the storage structure (2), and the ejection drive member (402) is suitable for ejecting the arc starting plate (8) at the bottom of the storage structure (2) onto the supporting seat (301).

2. The arc starting mechanism according to claim 1, characterized in that: The arc starting mechanism further comprises a lifting driving member (302), wherein the lifting driving member (302) is connected to the supporting seat (301) so as to lift the arc starting plate (8) on the supporting seat (301) to a docking position with a workpiece to be welded.

3. The arc starting mechanism according to claim 2, characterized in that: The arc starting mechanism further comprises a first shield (5), wherein the first shield (5) is fixed on the mounting foot (1) and covers the outer side of the driving end of the lifting drive member (302).

4. The arc starting mechanism according to any one of claims 1 to 3, characterized in that: The arc starting mechanism further comprises a second shield (6), wherein the second shield (6) is fixed on the mounting foot (1) and covers the outer side of the driving end of the ejection driving member (402).

5. The arc starting mechanism according to any one of claims 1 to 3, characterized in that: A push block (401) is provided on the driving end of the ejection driving member (402), and the push block (401) is suitable for cooperating with one side of the arc starting plate (8).

6. The arc starting mechanism according to claim 5, characterized in that: The moving direction of the push block (401) is perpendicular to the extending direction of the supporting seat (301).

7. The arc starting mechanism according to any one of claims 1 to 3, characterized in that: The ejection drive member (402) is an ejection drive cylinder.

8. The arc starting mechanism according to any one of claims 2 to 3, characterized in that: The arc starting mechanism further comprises a guide structure (7), wherein the guide structure (7) is arranged on one side of the mounting foot (1) and is suitable for guiding the lifting and lowering of the bearing seat (301).

9. A welding device, characterized in that: include: A bearing structure suitable for bearing a workpiece to be welded; The arc starting mechanism according to any one of claims 1 to 8, arranged on one side of the bearing structure; The welding robot is suitable for striking an arc on an arc striking plate (8) of the arc striking mechanism and welding a workpiece to be welded after striking the arc.

10. The welding device according to claim 9, characterized in that The position of the arc starting mechanism is adjustable.

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