Plate feeding device of automatic welding machine and automatic welding machine

Abstract

The application provides a plate feeding device of an automatic welding machine and the automatic welding machine, and the plate feeding device comprises a plate conveying mechanism, which is installed on a rack and is suitable for storing and conveying plates outward; a plate clamping mechanism, which is suitable for receiving the plates conveyed from the plate conveying mechanism and switching the plates to a vertical state; and a plate driving mechanism, which is suitable for conveying the plates arranged vertically to a welding position. During plate conveying, the plate conveying mechanism receives the plates placed from the front of the rack and conveys the plates to the plate clamping mechanism, the plate clamping mechanism switches the plates to the vertical state, and finally the plate driving mechanism conveys the plates to the welding position, so that the automatic feeding of the plates is realized, the production efficiency is improved, the safety and reliability are higher, and in addition, since the plate conveying mechanism is located below the plate driving mechanism, the transverse space occupation is small, so that the welding machine can be applied to narrow spaces.

Description

Technical Field

[0001] This invention relates to the field of welding technology, and specifically to a plate feeding device for an automatic welding machine and an automatic welding machine. Background Technology

[0002] The welding of existing distribution boxes is mainly done manually. Manual welding involves workers holding welding tools and melting the solder under the high temperature of an electric arc to weld the plates together. Manual welding has the disadvantages of low welding efficiency and difficulty in guaranteeing welding quality.

[0003] To address the aforementioned technical problems, the applicant disclosed an automatic welding machine in its earlier Chinese patent application CN209886959U. This machine includes a frame, a first positioning device, a second positioning device, a welding device, and a control system. The first and second positioning devices are adapted to clamp and position the main body and side plate to be welded, respectively, and drive them to move to the welding position. The second positioning device includes a suction cup, a third positioning plate, and a third power mechanism. Before welding, the worker needs to manually place the side plate onto the third positioning plate from top to bottom, ensuring that the bottom and side edges of the side plate abut against the horizontal and vertical edges of the third positioning plate, respectively. After the suction cup holds the side plate, the third power mechanism drives the side plate to move to the welding position. However, since the worker needs to reach into the frame to place the side plate, this poses a safety hazard, and manual placement is time-consuming, labor-intensive, and inefficient. Summary of the Invention

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the defects of low production efficiency and certain safety hazards of welding machines in the prior art, thereby providing a plate feeding device for an automatic welding machine with high production efficiency and high safety, and an automatic welding machine having the plate feeding device.

[0005] Therefore, the present invention provides a plate feeding device for an automatic welding machine, including a plate conveying mechanism, a plate clamping mechanism, and a plate driving mechanism. The plate conveying mechanism is mounted on the frame and is suitable for storing and conveying plates outward. The plate clamping mechanism is suitable for receiving plates conveyed from the plate conveying mechanism and switching the plates to a vertical state. The plate driving mechanism is suitable for transporting the vertically arranged plates to the welding position.

[0006] Both the panel conveying mechanism and the panel clamping mechanism are located below the panel driving mechanism.

[0007] The plate drive mechanism is movably mounted on the frame and has a first position adjacent to the plate conveying mechanism and a second position that moves away from the plate conveying mechanism to allow the plate to move.

[0008] The plate conveying mechanism includes a support plate and a first power mechanism. The support plate is rotatably mounted on the frame and has a first position that is horizontally arranged and suitable for placing the plate, and a second position that is inclined and allows the plate to slide along the support plate toward the plate clamping mechanism. The first power mechanism is connected to the support plate and is suitable for driving the support plate to reciprocate between the first position and the second position.

[0009] The first power mechanism is located below the support plate and is a first drive cylinder fixedly connected to the middle of the support plate.

[0010] The support plate is provided with a limiting structure suitable for limiting the sliding direction of the plate. The limiting structure includes a first limiting block and a second limiting block arranged in parallel. The first limiting block and the second limiting block form a groove that is adapted to the length of the plate.

[0011] The first limiting block is fixed to the edge of the support plate, and the second limiting block is movable relative to the first limiting block and is assembled with the support plate by bolts.

[0012] The plate clamping mechanism includes at least one clamp having a first jaw and a second jaw that are relatively disposed and adapted to clamp the plate, the first jaw and the second jaw having a first state of relative movement and a second state of linkage rotation adapted to drive the plate to rotate.

[0013] The plate clamping mechanism further includes a bushing, a first mounting member, a second mounting member, a second driving cylinder, and a second power mechanism. The bushing is sleeved on a first rotating shaft and rotates in conjunction with it. The first mounting member has a first collar sleeved on the bushing and rotating in conjunction with it, and a first connecting plate connected to the first collar; the first gripper is fixedly mounted on the first collar. The second mounting member has a second collar sleeved on the bushing and rotatable relative to it, and a second connecting plate connected to the second collar; the second gripper is fixedly mounted on the second collar. The second driving cylinder has one end fixed to the first connecting plate and the other end fixedly connected to the second connecting plate, adapted to drive the second gripper to rotate relative to the first gripper. The second power mechanism is connected to the first rotating shaft and adapted to drive the first rotating shaft to rotate.

[0014] The clamp moves axially along the first rotating shaft via a sliding mounting structure. The sliding mounting structure includes: a third mounting member, which is slidably mounted on the frame via a slide rail structure, and has a third connecting plate extending toward the first rotating shaft. A bearing sleeved on the third connecting plate and moving in linkage with the bushing is fixed thereon; and a third power mechanism, which is connected to the third mounting member and is adapted to drive the third mounting member to move.

[0015] The plate driving mechanism includes a suction cup base, a suction cup, a third driving cylinder, and a fourth driving cylinder. Multiple suction cups are disposed on the suction cup base and are adapted to be attracted to the plate. The third driving cylinder is connected to the suction cup base and is adapted to drive the suction cup base to move up and down along the frame. The fourth driving cylinder is connected to the suction cup and is adapted to drive the suction cup to move back and forth along the frame.

[0016] The present invention also provides an automatic welding machine, including the plate feeding device of the automatic welding machine as described above.

[0017] The technical solution of this invention has the following advantages:

[0018] 1. The plate feeding device provided by the present invention includes a plate conveying mechanism, a plate clamping mechanism, and a plate driving mechanism. During the feeding process, the plate conveying mechanism receives the plate placed from the front of the frame and transports it to the plate clamping mechanism. The plate clamping mechanism switches the plate to a vertical state, and finally the plate driving mechanism transports the plate to the welding position. This realizes the automated feeding of the plate, which not only improves production efficiency but also enhances safety and reliability.

[0019] 2. The plate feeding device provided by the present invention has a small lateral space occupation because both the plate conveying mechanism and the plate clamping mechanism are located below the plate driving mechanism, making the welding machine suitable for use in narrow spaces.

[0020] 3. In the plate feeding device provided by the present invention, when the plate is switched from a horizontal / inclined state to a vertical state, the plate driving mechanism needs to be lifted up first to form a space below for the plate to move. This arrangement makes the layout of the plate driving mechanism and the plate clamping mechanism more compact and occupies less space laterally.

[0021] 4. The plate feeding device provided by the present invention includes a plate conveying mechanism comprising a support plate and a first power mechanism. The support plate is rotatably mounted on a frame and has a first position horizontally positioned for placing the plate, and a second position inclined to allow the plate to slide along the support plate toward the plate clamping mechanism. Compared with the method of using a first power mechanism located in front of the frame to horizontally push the plate in, the support plate's rotation further reduces the lateral space required, making it suitable for use in narrow spaces. Furthermore, when the plate size is large and multiple cylinders are needed to horizontally push the plate in, inconsistent pushing actions of the cylinders can cause the plate to tilt, ultimately preventing it from fitting snugly against the welding body. However, with the support plate rotating, under gravity, the plate slides along the inclined support plate toward the plate clamping mechanism, preventing tilting and ensuring welding quality.

[0022] 5. The plate feeding device provided by the present invention has a first power mechanism located below the support plate, which is a first driving cylinder fixedly connected to the middle of the support plate. In this way, the force of the first driving cylinder acting on the support plate is uniform and occupies little space laterally.

[0023] 6. The plate feeding device provided by the present invention includes a plate clamping mechanism in which, during the clamping process, a second drive cylinder drives the second jaw of the second mounting component to rotate relative to the first rotating shaft, thereby clamping the plate with the first jaw. During the process of the plate switching from an inclined state to a vertical state, a second power mechanism drives the first rotating shaft to rotate, thereby rotating the first jaw on the first mounting component through a bushing. Meanwhile, a second drive cylinder fixedly mounted on the first connecting plate of the first mounting component drives the second connecting plate on the second mounting component to rotate, which in turn drives the second jaw to rotate. Finally, the clamp moves axially along the first rotating shaft through a sliding mounting structure, thereby transferring the plate to a set position. In this way, the clamping, rotation, and movement of the plate are all completed on the same first rotating shaft, resulting in a compact structure suitable for use in confined spaces. Attached Figure Description

[0024] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0025] Figure 1 This is a perspective view of the automatic welding machine of the present invention;

[0026] Figure 2 A perspective view of the sheet metal feeding device;

[0027] Figure 3 A perspective view of the sheet metal conveying mechanism and the sheet metal clamping mechanism;

[0028] Figure 4 This is a 3D view of the sheet metal conveying mechanism;

[0029] Figure 5 This is a three-dimensional view of the sheet metal clamping mechanism;

[0030] Figure 6 This is an exploded view of the sheet metal clamping mechanism.

[0031] Figure 7 This is a side view of the plate clamping mechanism;

[0032] Figure 8 This is a 3D view of the board drive mechanism;

[0033] Figure 9 This is an exploded structural diagram of the plate drive mechanism.

[0034] Explanation of reference numerals in the attached drawings: 1. Frame; 2. Plate conveying mechanism; 3. Plate driving mechanism; 4. Plate; 5. Plate clamping mechanism; 6. Support plate; 7. First driving cylinder; 8. First limiting block; 9. Second limiting block; 10. Fixture; 11. First gripper; 12. Second gripper; 13. Bushing; 14. First rotating shaft; 15. First mounting component; 16. First collar; 17. First connecting plate; 18. Second mounting component; 19. Second collar; 20. Second connecting plate; 21. Second driving cylinder; 22. Third mounting component; 23. Third connecting plate; 24. Suction cup seat; 25. Suction cup; 26. Third driving cylinder; 27. Fourth driving cylinder; 28. Bushing body; 29. ​​Flange; 30. Slide rail; 31. Slider. Detailed Implementation

[0035] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0036] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0037] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0038] Furthermore, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0039] Example

[0040] This embodiment provides an automatic welding machine, such as Figure 1 and 2 As shown, it includes a frame 1 and a board feeding device mounted on the frame 1. The board feeding device includes a board conveying mechanism 2, a board clamping mechanism 5 and a board driving mechanism 3.

[0041] The sheet metal conveying mechanism 2 is mounted on the frame 1 and located below the sheet metal driving mechanism 3. It is suitable for storing and conveying sheet metal 4 outwards, such as... Figure 3 and 4 As shown, the plate conveying mechanism 2 includes a support plate 6 and a first power mechanism.

[0042] A support plate 6 is rotatably mounted on the frame 1 via a second pivot. It has a first position that is horizontally positioned and suitable for placing the plate 4, and a second position that is inclined and allows the plate 4 to slide along the support plate 6 toward the plate clamping mechanism 5. The support plate 6 is provided with a limiting structure suitable for limiting the sliding direction of the plate 4. The limiting structure includes a first limiting block 8 and a second limiting block 9 arranged in parallel. The first limiting block 8 and the second limiting block 9 form a sliding groove that is adapted to the length of the plate 4. The first limiting block 8 is fixed to the edge of the support plate 6, and the second limiting block 9 can move relative to the first limiting block 8 and is assembled to the support plate 6 by bolts.

[0043] A first power mechanism, connected to the support plate 6, is adapted to drive the support plate 6 to reciprocate between the first position and the second position. The first power mechanism is located below the support plate 6 and is a first drive cylinder 7 fixedly connected to the middle of the support plate 6.

[0044] As a possible implementation, the first power mechanism is a motor that drives the second rotating shaft to rotate.

[0045] A plate clamping mechanism 5, located behind the plate conveying mechanism 2, is adapted to receive the plate 4 conveyed from the plate conveying mechanism 2 and switch the plate 4 from an inclined state to a vertical state. Figure 3 , 5As shown in Figure 7, the plate clamping mechanism 5 includes: two clamps 10, each having a first clamp 11 and a second clamp 12 arranged opposite to each other and adapted to clamp the plate 4. The first clamp 11 and the second clamp 12 have a first state of relative movement and a second state of linkage rotation adapted to drive the plate 4 to rotate; a bushing 13, sleeved on the first rotating shaft 14 and rotating in linkage with it. The bushing 13 includes a bushing body 28 and a flange 29 on one side of the bushing body 28. A keyway (not shown in the figure) extending along its length direction is formed on the outer wall of the first rotating shaft 14. A flat key (not shown in the figure) that mates with the keyway is provided on the inner wall of the bushing 13. The flat key can reciprocate along the length direction of the keyway, thereby enabling the clamps to move axially along the first rotating shaft 14. When the first rotating shaft 14 rotates, the bushing 14 can be driven to rotate together through the flat key; a first mounting member 1. 5. A first collar 16 is sleeved on the bushing 13 and rotates in linkage with it, and a first connecting plate 17 is connected to the first collar 16. The first gripper 11 is fixedly installed on the first collar 16. The first collar 16 is sleeved on the bushing body 28 and assembled with the flange 29 by bolts. A second mounting member 18 has a second collar 19 sleeved on the bushing 13 and rotatable relative to it, and a second connecting plate 20 connected to the second collar 19. The second gripper 12 is fixedly installed on the second collar 19. A second driving cylinder 21 is fixed to the first connecting plate 17 at its bottom by bolts, and fixedly connected to the second connecting plate 20 at its other end, and is adapted to drive the second gripper 12 to rotate relative to the first gripper 11. A second power mechanism is connected to the first rotating shaft 14 and is adapted to drive the first rotating shaft 14 to rotate. In this embodiment, the second power mechanism is a motor that drives the first rotating shaft 14 to rotate. The clamp 10 moves axially along the first rotating shaft 14 via a sliding mounting structure. The sliding mounting structure includes: a third mounting member 22, slidably mounted on the frame 1 via a slide rail structure, having a third connecting plate 23 extending toward the first rotating shaft 14; a bearing fixed to the bushing 13 and moving in conjunction with it; the slide rail structure including a slide rail 30 on the frame 1; and a slider 31 disposed on the third mounting member 22 and slidably connected to the slide rail 30; and a third power mechanism connected to the third mounting member 22, adapted to drive the third mounting member 22 to move. In this embodiment, the third power mechanism is a ball screw mechanism, which is a mature existing technology, therefore its internal structure and working principle are not described in detail. It should be noted that the assembly structure between the bushing and the bearing is a mature existing technology, therefore its internal structure and working principle are not described in detail.

[0046] As an alternative implementation, the third power mechanism can be a cylinder connected to the third mounting member 22.

[0047] The plate drive mechanism 3 is adapted to transport the vertically arranged plate 4 to the welding position. The plate drive mechanism 3 is vertically movably mounted on the frame 1, and has a first position adjacent to the plate conveying mechanism 2, and a second position that moves away from the plate conveying mechanism 2 to allow the plate 4 to switch its setting state. Figure 8 and 9 As shown, the plate driving mechanism 3 includes: a suction cup base 24; a plurality of suction cups 25 disposed on the suction cup base 24 and adapted to be attracted to the plate 4; a third driving cylinder 26 connected to the suction cup base 24 and adapted to drive the suction cup base 24 to move up and down along the frame 1; and a fourth driving cylinder 27 connected to the suction cups 25 and adapted to drive the suction cups 25 to move back and forth along the frame 1.

[0048] The working principle of the plate feeding device provided by this invention is as follows:

[0049] The worker places the plate 4 in the groove of the horizontally set support plate 6. The suction cup seat 24 of the plate drive mechanism 3 is lifted upward under the drive of the fourth drive cylinder 27. The first drive cylinder 7 drives the support plate 6 to switch from a horizontal state to an inclined state. The plate 4 slides along the groove to the clamp 10. After the first jaw 11 and the second jaw 12 of the clamp 10 clamp the plate 4, the second power mechanism drives the first rotating shaft 14 to rotate counterclockwise, thereby driving the plate 4 to switch from an inclined state to a vertical state. The suction cup seat 24 of the plate drive mechanism 3 moves downward. After the suction cup 25 is attracted to the plate 4, the clamp 10 separates from the plate 4. The suction cup seat 24 moves upward and is driven by the third drive cylinder 26 to move the suction cup 25 to the position to be welded.

[0050] It should be noted that the automatic welding machine of the present invention can be used not only for welding distribution boxes, but also for welding other boxes or cabinets.

[0051] The plate feeding device provided by the present invention includes a plate conveying mechanism 2, a plate clamping mechanism 5, and a plate driving mechanism 3. During the feeding process, the plate conveying mechanism 2 receives the plate 4 placed from the front of the frame 1 and transports it to the plate clamping mechanism 5. The plate clamping mechanism 5 switches the plate 4 to a vertical state. Finally, the plate driving mechanism 3 transports the plate 4 to the welding position. This realizes the automated feeding of the plate 4, which not only improves production efficiency but also enhances safety and reliability. In addition, since the plate conveying mechanism 2 is located below the plate driving mechanism 3, it occupies little lateral space, making the welding machine suitable for use in narrow spaces.

[0052] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A sheet material feeding device for an automatic welding machine, characterized by, The utility model relates to a plate conveying mechanism (2) is installed on the frame (1), is suitable for depositing and conveying plate (4) outwardly, plate clamping mechanism (5) is suitable for receiving the plate (4) that conveys from plate conveying mechanism (2), and the plate (4) is switched to vertical state, plate drive mechanism (3) is suitable for conveying the plate (4) of vertical setting to the position of waiting to weld, plate conveying mechanism (2) and plate clamping mechanism (5) are all located the lower of plate drive mechanism (3), plate drive mechanism (3) can be installed on the frame (1) and moves up and down, it has the first position of setting adjacent plate conveying mechanism (2) and the second position of moving away from plate conveying mechanism (2) direction for the activity of plate (4), plate clamping mechanism (5) includes at least one clamp (10) with the first jaw (11) and the second jaw (12) of setting oppositely, suitable for clamping plate (4), the first jaw (11) and the second jaw (12) have the first state of relative motion and the second state of linkage rotation, suitable for driving plate (4) rotation, plate clamping mechanism (5) still includes the shaft sleeve (13) of setting on the first rotation axis (14) and following linkage rotation, first mounting (15) has the first collar (16) of setting on the shaft sleeve (13) and linkage rotation with it, and the first connecting plate (17) is connected with the first collar (16), and the first jaw (11) is fixedly installed on the first collar (16), second mounting (18) has the second collar (19) of setting on the shaft sleeve (13) and can rotate relative to it, and the second connecting plate (20) is connected with the second collar (19), and the second jaw (12) is fixedly installed on the second collar (19), second drive cylinder (21) one end is fixed on the first connecting plate (17), the other end is fixedly connected with the second connecting plate (20), is suitable for driving the second jaw (12) relative rotation first jaw (11), second power mechanism is connected with the first rotation axis (14), is suitable for driving the first rotation axis (14) rotation, the clamp (10) moves along the first rotation axis (14) axial direction through the sliding installation structure, and the sliding installation structure includes third mounting (22) is slidably installed on the frame (1) through slide rail structure, has the third connecting plate (23) of extending towards the first rotation axis (14), and the bearing of setting on the shaft sleeve (13) is fixed on the third connecting plate (23) and linkage moves with it, third power mechanism is connected with the third mounting (22), is suitable for driving the third mounting (22) moves, the outer wall of first rotation axis (14) is formed with the keyway along its length direction, and the inner wall of shaft sleeve (13) is equipped with the flat key that cooperates with keyway, and the flat key can reciprocate along the length direction of keyway. Plate conveying mechanism (2) includes ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2. The plate feeding device of an automatic welding machine according to claim 1, characterized in that, ​ A support plate (6) is rotatably mounted on the frame (1), which has a first position horizontally arranged and suitable for placing the plate member (4), and a second position obliquely arranged and making the plate member (4) slide along the support plate (6) to the plate member clamping mechanism (5); A first power mechanism is connected with the support plate (6) and suitable for driving the support plate (6) to reciprocate between the first position and the second position.

3. The plate feed apparatus of an automatic welding machine according to claim 2, wherein The first power mechanism is arranged below the support plate (6) and is a first driving air cylinder (7) fixedly connected with the middle part of the support plate (6).

4. The plate feed apparatus of an automatic welder according to claim 2, wherein The support plate (6) is provided with a limiting structure suitable for limiting the sliding direction of the plate member (4), which includes first and second limiting blocks (8, 9) arranged in parallel, and the first and second limiting blocks (8, 9) oppositely form a sliding groove suitable for the length of the plate member (4).

5. The plate feed apparatus of an automatic welder according to claim 4, wherein The first limiting block (8) is fixed to the edge of the support plate (6), and the second limiting block (9) is movable relative to the first limiting block (8) and is assembled with the support plate (6) through bolts.

6. The plate feeding device of an automatic welding machine according to any one of claims 1 to 5, characterized in that, The plate member driving mechanism (3) includes: A suction disc seat (24); A plurality of suction discs (25) arranged on the suction disc seat (24) and suitable for being adsorbed with the plate member (4); A third driving air cylinder (26) connected with the suction disc seat (24) and suitable for driving the suction disc seat (24) to move in the up-down direction of the frame (1); A fourth driving air cylinder (27) connected with the suction disc (25) and suitable for driving the suction disc (25) to move in the front-rear direction of the frame (1).

7. An automatic welding machine characterized by comprising: A plate member feeding device of an automatic welding machine, which comprises the automatic welding machine as claimed in any one of claims 1-6.

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