Multi-head indexable nut projection welding machine

Abstract

The utility model relates to the technical field of nut projection welding machines, and provides a multi-head indexable nut projection welding machine which comprises a main beam, the front surface of the main beam is fixedly connected with a first bracket, and the front surface of the main beam is fixedly connected with a second bracket. According to the projection welding device, a nut needing projection welding and a workpiece are placed on the upper portion of the second electrode tip, the first air cylinder is started, and an output shaft of the first air cylinder extends out, so that the first electrode tip is driven to descend; the power supply box supplies power for heating so that projection welding can be completed, the first electrode tips and the second electrode tips in the first adjusting structure and the second adjusting structure are six, different in size and matched, and therefore the technical scheme solves the problems that in the prior art, time is wasted when the electrode tips are replaced, and the working efficiency is high. And the working efficiency of projection welding of the nut is reduced.

Description

TECHNICAL FIELD

[0001] The embodiment of the present disclosure relates to the technical field of nut projection welding machines, in particular to a multi-head indexable nut projection welding machine. BACKGROUND

[0002] The nut projection welding machine is a kind of high-efficiency welding equipment, which is particularly suitable for the projection welding of nuts and various materials. It has fast welding speed and can complete a large amount of nut welding work in a short time, thereby significantly improving production efficiency. This high-efficiency welding capability makes the nut projection welding machine widely used in many fields such as automobile manufacturing, home appliance production, engineering machinery and electronic appliances.

[0003] In the prior art, when the workpiece needs to be nut projection welded, due to the limitation of the size of the electrode head of the nut projection welding machine, only the same type of nut and workpiece can be welded. When the worker needs to weld different nuts, the worker needs to stop the operation of the device and disassemble and replace the electrode head. This step is cumbersome and time-consuming, thereby reducing the working efficiency of the nut projection welding machine, thereby increasing the time cost. Therefore, in view of the above problems, the nut projection welding machine needs to be improved and optimized. CONTENT OF THE INVENTION

[0004] To overcome the above defects, the embodiment of the present disclosure provides a multi-head indexable nut projection welding machine, which solves the technical problem of time-consuming replacement of electrode heads and reduces the working efficiency of nut projection welding in the prior art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a multi-head indexable nut projection welding machine, comprising a main beam, the front surface of the main beam is fixedly connected with a first bracket, the front surface of the main beam is fixedly connected with a second bracket, the upper part of the first bracket is fixedly connected with a first air cylinder, the output shaft of the first air cylinder is rotatably connected with a turntable assembly, the lower part of the turntable assembly is fixedly connected with a first electrode head, the output shaft of the first air cylinder is provided with a first adjusting structure, the upper part of the second bracket is rotatably connected with a rotating shaft, the upper part of the rotating shaft is fixedly connected with a hexagonal turntable, the upper part of the hexagonal turntable is fixedly connected with a second electrode head, and the lower part of the second bracket is provided with a second adjusting structure.

[0006] As a preferred technical scheme of the utility model: the right part of the second bracket is fixedly connected with a sliding groove, the inside of the sliding groove is movably connected with a sliding block, the right part of the sliding block is fixedly connected with an internal thread block, the inside of the internal thread block is screwedly connected with a threaded rod, the right part of the sliding groove is fixedly connected with a fixed block, the surface of the threaded rod is rotatably connected with the inside of the fixed block, the front part of the threaded rod is fixedly connected with a driving disc, and the lower part of the sliding block is provided with a clamping structure.

[0007] As a preferred technical scheme of the utility model: first adjusting structure including fixedly connected with the first gear on the upper portion of rotating disc subassembly, the output shaft of first air cylinder is fixedly connected with the to strip, the upper portion of to strip is fixedly connected with first motor, the output shaft of first motor is fixedly connected with first irregular gear, first irregular gear and first gear are mutually engaged between.

[0008] As a preferred technical scheme of the utility model: second adjusting structure including fixedly connected with the L shape piece on the lower portion of second bracket, the upper surface of L shape piece is fixedly connected with second motor, the output shaft of second motor is fixedly connected with second irregular gear, the output shaft of second motor is through the inside of second bracket, the output shaft of second motor is movably connected with the inside of second bracket, the surface of rotating shaft is fixedly connected with second gear, second irregular gear and second gear are mutually engaged between.

[0009] As a preferred technical scheme of the utility model: clamping structure including fixedly connected with the second air cylinder on the lower portion of sliding block, the output shaft of second air cylinder is fixedly connected with the clamping plate, the upper portion of sliding block is fixedly connected with guide rod, the surface of guide rod is movably connected with the inside of clamping plate.

[0010] As a preferred technical scheme of the utility model: the right portion of main beam is fixedly connected with power supply box, and the power supply box is electrically connected between first air cylinder, first electrode head, second electrode head, first motor, second motor and second air cylinder.

[0011] As a preferred technical scheme of the utility model: the lower portion of main beam is fixedly connected with base, and the inside of base is detachably installed with bolt.

[0012] As a preferred technical scheme of the utility model: the upper portion of second bracket is fixedly connected with protective shell, and there is gap between the upper portion of second electrode head and the lower surface of protective shell.

[0013] As a preferred technical scheme of the utility model: the output shaft of first air cylinder is fixedly connected with limit ring, and the left portion of first bracket is provided with recess.

[0014] As a preferred technical scheme of the utility model: the front portion of second bracket is fixedly connected with controller, and the controller is electrically connected between first air cylinder, first motor, second motor, second air cylinder and power supply box.

[0015] The embodiment of the present disclosure has the following beneficial effects:

[0016] 1、the disclosure, by placing the nut and workpiece need to be projection welding in the upper part of the second electrode head, and by starting the first cylinder, due to the extension of the first cylinder output shaft, thus driving the first electrode head down, when the first electrode head and the second electrode head between the nut and workpiece clamping, by power supply box power supply heating makes the projection welding is completed, however, due to the number of first electrode head and second electrode head in the first adjusting structure and the second adjusting structure are six and different size, but match, the device by adjusting the matching of the electrode head, so that the staff projection welding efficiency is higher, without disassembling the electrode head, can complete the projection welding of a variety of nuts.

[0017] 2、the disclosure, by placing the nut and workpiece need to be projection welding in the upper part of the second electrode head, and then by rotating the driving disc to drive the rotation of the threaded rod, in turn, the slider in the inside of the sliding slot changes the position of the front and back, so as to adapt to the size of the workpiece, further satisfy the clamping structure clamping workpiece, so that the workpiece projection welding is more stable, the device by moving clamping, so that the difficulty of the staff operation is reduced, further guarantee the safety of projection welding. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the following will briefly introduce the drawings needed to be used in the description of the embodiments of the present disclosure. Obviously, the drawings in the following description are only some example embodiments of the present disclosure. For those skilled in the art, other drawings can also be obtained according to the content of the example embodiments of the present disclosure and these drawings without creating laborious work.

[0019] Figure 1 For the overall device structure diagram of an embodiment of the present disclosure;

[0020] Figure 2 For the first cylinder structure diagram of an embodiment of the present disclosure;

[0021] Figure 3 For the protective shell structure diagram of an embodiment of the present disclosure;

[0022] Figure 4 For the slider structure diagram of an embodiment of the present disclosure;

[0023] Figure 5 For the base structure diagram of an embodiment of the present disclosure;

[0024] Figure 6 For the second irregular gear structure diagram of an embodiment of the present disclosure;

[0025] Figure 7 For the first irregular gear structure diagram of an embodiment of the present disclosure.

[0026] Fig. 1, main beam; 2, first bracket; 3, second bracket; 4, first cylinder; 5, rotary disc assembly; 6, first electrode head; 7, rotating shaft; 8, hexagonal rotary disc; 9, second electrode head; 10, sliding groove; 11, sliding block; 12, internally threaded block; 13, threaded rod; 14, fixed block; 15, driving disc; 16, first gear; 17, bracket; 18, first motor; 19, first irregular gear; 20, L-shaped block; 21, second motor; 22, second irregular gear; 23, second gear; 24, second cylinder; 25, clamping plate; 26, guide rod; 27, power supply box; 28, base; 29, bolt; 30, protective shell; 31, limiting ring; 32, groove; 33, controller. DETAILED DESCRIPTION

[0027] The present disclosure will be further described in conjunction with the drawings and examples. It can be understood that the specific examples described herein are merely illustrative of the present disclosure and are not a limitation thereof.

[0028] In order to make the drawing simple, only the parts related to the disclosure are shown in each drawing, which does not represent the actual structure of the product. In addition, in order to make the drawing simple and easy to understand, in some drawings, only one of the components with the same structure or function is shown, or only one of them is marked. In this document, "one" not only means "only one", but also means "more than one" situation, and "several" includes "two" and "more than two".

[0029] In this document, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present disclosure can be understood according to the specific circumstances.

[0030] In the present disclosure, unless otherwise explicitly specified and limited, the "upper" or "lower" of the first feature to the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the "upper", "above" and "on" of the first feature to the second feature includes that the first feature is directly above and obliquely above the second feature, or only means that the horizontal height of the first feature is higher than that of the second feature. The "below", "under" and "under" of the first feature to the second feature includes that the first feature is directly below and obliquely below the second feature, or only means that the horizontal height of the first feature is less than that of the second feature.

[0031] In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like, orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present disclosure.

[0032] In addition, in the description of the present application, the terms "first", "second", and the like are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0033] As Figures 1 to 7 shown, the utility model provides a multi -head indexable nut projection welding machine, including main beam 1, the front surface fixed connection has first bracket 2 of main beam 1, the front surface fixed connection has second bracket 3 of main beam 1, the upper portion fixed connection has first cylinder 4 of first bracket 2, the output shaft rotationally connected has carousel assembly 5 of first cylinder 4, the lower portion fixed connection has first electrode head 6 of carousel assembly 5, the output shaft of first cylinder 4 is provided with first adjusting structure, the upper portion rotationally connected has shaft 7 of second bracket 3, the upper portion fixed connection has hexagonal carousel 8 of shaft 7, the upper portion fixed connection has second electrode head 9 of hexagonal carousel 8, the lower portion is provided with second adjusting structure of second bracket 3.

[0034] When the staff different workpiece nut projection welding, adjust first adjusting structure and second adjusting structure make the staff find the electrode head needed, then control the start of first cylinder 4 by controller 33, because the output shaft of first cylinder 4 is stretched, thereby driving first adjusting structure to descend, first adjusting structure is placed above second electrode head 9 before descending again, and the nut is placed, then when the nut is clamped between first electrode head 6 and second electrode head 9, power supply box 27 heats first electrode head 6 and second electrode head 9, so that projection welding is completed.

[0035] Wherein, the right part fixed connection has sliding groove 10 of second bracket 3, the inside movable connection has sliding block 11 of sliding groove 10, the right part fixed connection has internal thread block 12 of sliding block 11, the internal thread connection has screw rod 13 of internal thread block 12, the right part fixed connection has fixed block 14 of sliding groove 10, the surface of screw rod 13 and the inside rotationally connected of fixed block 14, the front part fixed connection has driving disc 15 of screw rod 13, the lower portion is provided with clamping structure of sliding block 11.

[0036] When the worker needs to carry out projection welding on large workpieces, the workpiece and the nut are placed above the second electrode head 9, and then the driving disc 15 is rotated, the threaded rod 13 in the fixed block 14 is rotated due to the rotation of the driving disc 15, the sliding block 11 in the sliding groove 10 is changed in position due to the threaded connection between the threaded rod 13 and the inner threaded block 12, and finally the workpiece is clamped by the clamping structure through the control of the controller 33, so that the projection welding of the workpiece is more stable.

[0037] The first adjusting structure comprises a first gear 16 fixedly connected to the upper part of the rotating disc assembly 5, a supporting strip 17 fixedly connected to the output shaft of the first cylinder 4, a first motor 18 fixedly connected to the upper part of the supporting strip 17, and a first irregular gear 19 fixedly connected to the output shaft of the first motor 18.

[0038] The first motor 18 is started by the controller 33, the first irregular gear 19 is rotated due to the rotation of the output shaft of the first motor 18, and the supporting strip 17 provides support for the first motor 18. Since the teeth of the first irregular gear 19 occupy one-sixth of the circumference, the output shaft of the first motor 18 rotates one revolution, thereby driving the rotating disc assembly 5 to rotate one-sixth of a circle, so that the first electrode head 6 and the second electrode head 9 can always be in a matching state.

[0039] The second adjusting structure comprises an L-shaped block 20 fixedly connected to the lower part of the second bracket 3, a second motor 21 fixedly connected to the upper surface of the L-shaped block 20, a second irregular gear 22 fixedly connected to the output shaft of the second motor 21, and a second gear 23 fixedly connected to the surface of the rotating shaft 7.

[0040] The second motor 21 is supported by the L-shaped block 20. The second irregular gear 22 is rotated due to the rotation of the output shaft of the second motor 21. The second gear 23 is rotated one-sixth of a circle due to the rotation of the output shaft of the second motor 21 one revolution, so that the first electrode head 6 and the second electrode head 9 can always be in a matching state.

[0041] The clamping structure comprises a second cylinder 24 fixedly connected to the lower part of the sliding block 11, a clamping plate 25 fixedly connected to the output shaft of the second cylinder 24, a guide rod 26 fixedly connected to the upper part of the sliding block 11, and the surface of the guide rod 26 movably connected to the inside of the clamping plate 25.

[0042] The rotation of the output shaft of the second cylinder 24 is controlled by the controller 33, so that the clamping plate 25 is driven to ascend and descend, and the guide rod 26 limits the ascending and descending of the clamping plate 25, so that the upper surface of the sliding block 11 and the lower surface of the clamping plate 25 clamp the workpiece.

[0043] The right part of the main beam 1 is fixedly connected with a power supply box 27, and the power supply box 27 is electrically connected with the first cylinder 4, the first electrode head 6, the second electrode head 9, the first motor 18, the second motor 21 and the second cylinder 24.

[0044] The power supply box 27 provides electric energy for the first cylinder 4, the first electrode head 6, the second electrode head 9, the first motor 18, the second motor 21 and the second cylinder 24, so that the device can be controlled and started by the controller 33.

[0045] The lower part of the main beam 1 is fixedly connected with a base 28, and the inside of the base 28 is detachably installed with a bolt 29.

[0046] The base 28 provides support force for the main beam 1, and the bolt 29 is used for installing the device.

[0047] The upper part of the second bracket 3 is fixedly connected with a protective shell 30, and there is a gap between the upper part of the protective shell 30 and the upper part of the second electrode head 9.

[0048] The protective shell 30 is designed to have a gap between the upper part of the protective shell 30 and the upper part of the second electrode head 9, so that the protective shell 30 protects the second electrode head 9 in front and avoids damage caused by touching by workers.

[0049] The output shaft of the first cylinder 4 is fixedly connected with a limiting ring 31, and the left part of the first bracket 2 is provided with a groove 32.

[0050] The limiting ring 31 is designed to limit the output shaft of the first cylinder 4, so as to prevent the first motor 18 from colliding with the first bracket 2.

[0051] The front part of the second bracket 3 is fixedly connected with a controller 33, and the controller 33 is electrically connected with the first cylinder 4, the first motor 18, the second motor 21, the second cylinder 24 and the power supply box 27.

[0052] The controller 33 can control the starting and closing of the first cylinder 4, the first motor 18, the second motor 21 and the second cylinder 24, and the power supply box 27 provides electric energy for the control circuit in the controller 33.

[0053] The working principle and use process of the utility model are as follows:

[0054] When the worker is different workpiece nut projection welding, adjust the first adjustment structure and the second adjustment structure so that the worker find the need for electrode head, and then through the controller 33 control the first cylinder 4 start, because the first cylinder 4 output shaft extension, thus driving the first adjustment structure down, before the first adjustment structure down will be placed in the second electrode head 9 above the workpiece, and put the nut, then when the first electrode head 6 and the second electrode head 9 between the clamp nut, power supply box 27 to the first electrode head 6 and the second electrode head 9 heating, so that the projection welding is completed.

[0055] When the worker needs to large workpiece projection welding will be placed in the second electrode head 9 above the workpiece and nut, then by rotating the drive plate 15, because the drive plate 15 rotation thus driving the threaded rod 13 located inside the fixed block 14 rotation, because the threaded rod 13 and the inner thread block 12 between the threaded connection, thus indirectly drive the slider 11 located in the slide groove 10 inside the change of position, finally through the controller 33 control the second cylinder 24 start, so that the clamping structure for clamping workpiece, so that the projection welding of workpiece is more stable.

[0056] Through the controller 33 control the first motor 18 start, because the first motor 18 output shaft rotation thus driving the first irregular gear 19 rotation, the strip 17 to the first motor 18 support force, because the first irregular gear 19 tooth occupies one sixth of the circumference, so that the first motor 18 output shaft rotation a week, thus driving the turntable assembly 5 rotation six sixteenth, so that the first electrode head 6 and the second electrode head 9 can always be in matching state.

[0057] Through the L-shaped block 20 to the second motor 21 support force, because the second motor 21 output shaft rotation, thus driving the second irregular gear 22 rotation, because the second motor 21 output shaft rotation a week thus driving the second gear 23 rotation six sixteenth, so that the first electrode head 6 and the second electrode head 9 can always be in matching state.

[0058] Through the controller 33 control the second cylinder 24 output shaft rotation, thus driving the clamping plate 25 lifting, while the guide rod 26 to the clamping plate 25 lifting limit, so that the upper surface of the slider 11 and the lower surface of the clamping plate 25 clamping workpiece.

[0059] Through the power supply box 27 for the first cylinder 4, the first electrode head 6, the second electrode head 9, the first motor 18, the second motor 21, the second cylinder 24 provides electrical energy, so that the device can be controlled by the controller 33 start.

[0060] Through the base 28 to the main beam 1 support force, through the bolt 29 will be installed in the device.

[0061] By the design of the protective shell 30, since there is a gap between the upper lower surface of the protective shell 30 and the upper part of the second electrode head 9, the protective shell 30 protects the front second electrode head 9 from being touched by the staff and causing damage.

[0062] By the design of the limiting ring 31, the output shaft of the first air cylinder 4 is limited to prevent the first motor 18 from colliding with the first bracket 2, and at the same time, due to the design of the groove 32.

[0063] By the design of the controller 33, the controller 33 can control the start and stop of the first air cylinder 4, the first motor 18, the second motor 21, and the second air cylinder 24, and the power supply box 27 provides power for the control circuit in the controller 33.

[0064] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present disclosure, not to limit it. Although the present disclosure has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present disclosure can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present disclosure, which should be covered in the scope of the claims of the present disclosure.

Claims

1. A multi-head indexable nut projection welding machine comprising a main beam (1), characterized in that: The front surface of the main beam (1) is fixedly connected with a first bracket (2), the front surface of the main beam (1) is fixedly connected with a second bracket (3), the upper portion of the first bracket (2) is fixedly connected with a first air cylinder (4), the output shaft of the first air cylinder (4) is rotatably connected with a rotating disc assembly (5), the lower portion of the rotating disc assembly (5) is fixedly connected with a first electrode head (6), the output shaft of the first air cylinder (4) is provided with a first adjusting structure, the upper portion of the second bracket (3) is rotatably connected with a rotating shaft (7), the upper portion of the rotating shaft (7) is fixedly connected with a hexagonal rotating disc (8), the upper portion of the hexagonal rotating disc (8) is fixedly connected with a second electrode head (9), and the lower portion of the second bracket (3) is provided with a second adjusting structure.

2. A multi-head indexable nut projection welding machine according to claim 1, characterized in that: The right portion of the second bracket (3) is fixedly connected with a sliding groove (10), the inside of the sliding groove (10) is movably connected with a sliding block (11), the right portion of the sliding block (11) is fixedly connected with an internally threaded block (12), the inside of the internally threaded block (12) is threadedly connected with a threaded rod (13), the right portion of the sliding groove (10) is fixedly connected with a fixed block (14), the surface of the threaded rod (13) is rotatably connected with the inside of the fixed block (14), the front portion of the threaded rod (13) is fixedly connected with a driving disc (15), and the lower portion of the sliding block (11) is provided with a clamping structure.

3. A multi-head indexable nut projection welding machine as claimed in claim 1, characterized in that: The first adjusting structure comprises a first gear (16) fixedly connected to the upper portion of the rotating disc assembly (5), the output shaft of the first air cylinder (4) is fixedly connected with a supporting strip (17), the upper portion of the supporting strip (17) is fixedly connected with a first motor (18), the output shaft of the first motor (18) is fixedly connected with a first irregular gear (19), and the first irregular gear (19) and the first gear (16) are in mesh with each other.

4. The multi-head indexable nut projection welding machine of claim 1, wherein: The second adjusting structure comprises an L-shaped block (20) fixedly connected to the lower portion of the second bracket (3), the upper surface of the L-shaped block (20) is fixedly connected with a second motor (21), the output shaft of the second motor (21) is fixedly connected with a second irregular gear (22), the output shaft of the second motor (21) penetrates through the inside of the second bracket (3), the output shaft of the second motor (21) is movably connected with the inside of the second bracket (3), the surface of the rotating shaft (7) is fixedly connected with a second gear (23), and the second irregular gear (22) and the second gear (23) are in mesh with each other.

5. A multi-head indexable nut projection welding machine as claimed in claim 2, characterized in that: The clamping structure comprises a second air cylinder (24) fixedly connected to the lower portion of the sliding block (11), the output shaft of the second air cylinder (24) is fixedly connected with a clamping plate (25), the upper portion of the sliding block (11) is fixedly connected with a guide rod (26), and the surface of the guide rod (26) is movably connected with the inside of the clamping plate (25).

6. A multi-head indexable nut projection welding machine as claimed in claim 1, characterized in that: The right portion of the main beam (1) is fixedly connected with a power supply box (27), and the power supply box (27) is electrically connected with the first air cylinder (4), the first electrode head (6), the second electrode head (9), the first motor (18), the second motor (21) and the second air cylinder (24).

7. A multi-head indexable nut projection welding machine as claimed in claim 1, characterized in that: The lower part of the main beam (1) is fixedly connected with a base (28), and the inside of the base (28) is detachably installed with a bolt (29).

8. A multi-head indexable nut projection welding machine as claimed in claim 1, characterized in that: The upper part of the second bracket (3) is fixedly connected with a protective shell (30), and there is a gap between the upper part of the protective shell (30) and the upper part of the second electrode head (9).

9. A multi-head indexable nut projection welding machine as claimed in claim 1, characterized in that: The output shaft of the first cylinder (4) is fixedly connected with a limiting ring (31), and the left part of the first bracket (2) is provided with a groove (32).

10. The multi-head indexable nut projection welding machine of claim 1, wherein: The front part of the second bracket (3) is fixedly connected with a controller (33), and the controller (33) is electrically connected with the first cylinder (4), the first motor (18), the second motor (21), the second cylinder (24) and the power supply box (27).

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