Welding machine

Abstract

The present invention discloses a welding device. The welding device comprises: a frame body (4); a first movable module (1) installed on the frame body (4) and movable in a first horizontal direction; a second movable module (2) installed on the first movable module (1) and movable in a second horizontal direction perpendicular to the first horizontal direction; a third movable module (3) installed on the second movable module (2) and movable in a vertical direction perpendicular to the first and second horizontal directions; and a welding module (5) installed on the third movable module (3) and movable together with the first, second, and third movable modules (1, 2, 3).The welding module (5) is suspended outside the frame body (4), and the first movable module (1) is located in an inner chamber (40) of the frame body (4) to reduce the distance between the welding module (5) and the frame body (4). Therefore, the welding device of the present invention exhibits good rigidity and stability, which in turn improves welding accuracy. Furthermore, the welding device of the present invention uses a modular design, which simplifies the movable structure and reduces the difficulties of control, making the welding device suitable for various production lines.

Description

Cross-reference to related application

[0001] This application claims the benefit of Chinese Patent Application No. CN202311141606.2, filed with the Chinese Patent Office on September 5, 2023, which is incorporated herein by reference in its entirety. Background of the inventionField of invention

[0002] The present invention relates to a welding device. State of the art

[0003] According to the current state of the art, the welding machine typically includes a robot arm with multiple degrees of freedom and a welding head installed at the end of the robot arm. However, the rigidity and stability of the robot arm are low, making it difficult to control the position of the welding head, which in turn reduces welding accuracy. Furthermore, the structure of the robot arm is complex, difficult to control, and expensive. Summary of the invention

[0004] The present invention aims to mitigate at least one aspect of the above-mentioned disadvantages.

[0005] According to one aspect of the present invention, a welding apparatus is provided. The welding apparatus comprises: a frame body; a first movable module installed on the frame body and movable in a first horizontal direction; a second movable module installed on the first movable module and movable in a second horizontal direction perpendicular to the first horizontal direction; a third movable module installed on the second movable module and movable in a vertical direction perpendicular to the first and second horizontal directions; and a welding module installed on the third movable module and movable together with the first, second, and third movable modules.The welding module is suspended outside the frame body, and the first movable module is provided in an inner chamber of the frame body to reduce the distance between the welding module and the frame body.

[0006] According to an exemplary embodiment of the present invention, the first movable module includes: a pair of first slide rails extending along the first horizontal direction and spaced apart by a predetermined distance in the second horizontal direction; and a pair of first sliders each installed on the pair of first slide rails so as to be able to slide. The frame body includes an upper frame, and the first slide rail is fixed to the inside of the upper frame.

[0007] According to another exemplary embodiment of the present invention, the first movable module further comprises: a horizontal mounting plate, wherein the pair of first sliders are fixed to the upper surface of the horizontal mounting plate; and a first drive device installed in the inner chamber of the frame body and connected to the horizontal mounting plate. The first drive device is used to drive the horizontal mounting plate for movement in the first horizontal direction.

[0008] According to another exemplary embodiment of the present invention, the first drive device includes: a first lead screw rotatably installed on the frame body; a first nut fixed to the horizontal mounting plate and threaded onto the first lead screw; and a first motor installed on the frame body, the output shaft of which is connected to the first lead screw. When the first motor drives the first lead screw for rotation, the first lead screw drives the first nut and the horizontal mounting plate for joint movement in the first horizontal direction.

[0009] According to another exemplary embodiment of the present invention, the second movable module includes: an installation frame; a second slide rail extending along the second horizontal direction and fixed to the installation frame; and a second slider slidably installed on the second slide rail so that it can move in the second horizontal direction. The installation frame is fixed to the horizontal mounting plate so that the second movable module can move along the first horizontal direction together with the horizontal mounting plate.

[0010] According to another exemplary embodiment of the present invention, the second movable module further comprises a second drive device installed on the installation frame and connected to the second slider, the second drive device being used to drive the second slider for movement in the second horizontal direction.

[0011] According to another exemplary embodiment of the present invention, the second drive device includes: a second lead screw rotatably installed on the installation frame; a second nut fixed to the second slider and screwed onto the second lead screw; and a second motor installed on the installation frame, the output shaft of which is connected to the second lead screw. When the second motor drives the second lead screw for rotation, the second lead screw drives the second nut and the second slider for joint movement in the second horizontal direction.

[0012] According to another exemplary embodiment of the present invention, when the welding device performs welding tasks, the second movable module can be partially or completely moved into the inner chamber of the frame body to further reduce the distance between the welding module and the frame body.

[0013] According to another exemplary embodiment of the present invention, the third movable module includes: a vertical mounting plate; a third slide rail extending in the vertical direction and fixed to the vertical mounting plate; a third slider slidably installed on the third slide rail so that it can move in the vertical direction; and a mounting bracket fixed to the third slider so that it can move along the vertical direction together with the third slider. The welding module is installed on the mounting bracket so that the welding module can be moved along the vertical direction together with the mounting bracket. The vertical mounting plate is fixed to the second slider so that the third movable module can move along the second horizontal direction together with the second slider.

[0014] According to another exemplary embodiment of the present invention, the third movable module further comprises a third drive device installed on the vertical mounting plate and connected to the third slider, the third drive device being used to drive the third slider for movement in the vertical direction.

[0015] According to another exemplary embodiment of the present invention, the third drive device includes: a third lead screw rotatably installed on the vertical mounting plate; a third nut fixed to the third slider and screwed onto the third lead screw; and a third motor installed on the vertical mounting plate, the output shaft of which is connected to the third lead screw. When the third motor drives the third lead screw for rotation, the third lead screw drives the third nut and the third slider for joint movement in the vertical direction.

[0016] According to another exemplary embodiment of the present invention, the welding device further comprises a visual module installed on the mounting bracket of the third movable module such that it can move synchronously with the mounting bracket and the welding module. The welding module is adapted to perform welding tasks under the visual guidance of the visual module.

[0017] According to another exemplary embodiment of the present invention, the welding module comprises a welding head for heating and welding. The welding device further comprises a welding head cleaning device installed on the frame body for removing contaminants from the welding head of the welding module.

[0018] According to a further exemplary embodiment of the present invention, the frame body comprises a crossbeam arranged on its lower side, wherein the welding head cleaning device is arranged outside the frame body and fixed to the crossbeam of the frame body.

[0019] According to another exemplary embodiment of the present invention, the welding apparatus further comprises a power supply fixed to the upper side of the frame body for supplying power to the welding apparatus.

[0020] According to another exemplary embodiment of the present invention, the welding apparatus further comprises an electrical control box disposed in the inner chamber of the frame body for controlling the welding apparatus.

[0021] In the above-mentioned exemplary embodiments of the present invention, the welding machine has good rigidity and stability, thereby improving welding accuracy. Furthermore, the welding machine uses a modular structure, simplifying the movable structure and reducing the difficulty of control, making the welding machine suitable for various production lines. Brief description of the drawings

[0022] The above and other features of the present invention will become more apparent from a detailed description of exemplary embodiments with reference to the accompanying drawings. Fig. 1 is an exemplary perspective view of a welding apparatus according to an exemplary embodiment of the present invention. Fig. 2 is an exemplary perspective view of a welding apparatus according to an exemplary embodiment of the present invention. Fig. 3 is a side view of a welding apparatus according to an exemplary embodiment of the present invention. Detailed description of exemplary embodiments of the invention

[0023] Exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings, wherein like reference numerals are used to refer to corresponding elements throughout. The present invention may be embodied in many different forms and is not limited to the embodiments described herein, which are merely intended to clarify the concept of the present invention for those skilled in the art.

[0024] In the following detailed description, numerous specific details are set forth to clarify the described embodiments. However, it should be understood that one or more embodiments may be practiced without these specific details. Furthermore, well-known structures and devices are shown schematically only to simplify the drawings.

[0025] According to a general concept of the present invention, a welding apparatus is provided. The welding apparatus includes: a frame body; a first movable module installed on the frame body and movable in a first horizontal direction; a second movable module installed on the first movable module and movable in a second horizontal direction perpendicular to the first horizontal direction; a third movable module installed on the second movable module and movable in a vertical direction perpendicular to the first and second horizontal directions; and a welding module installed on the third movable module and movable together with the first, second, and third movable modules.The welding module is suspended outside the frame body, and the first movable module is provided in an inner chamber of the frame body to reduce the distance between the welding module and the frame body.

[0026] Fig. 1 is an exemplary perspective view of a welding apparatus according to an exemplary embodiment of the present invention. Fig. 2 is an exemplary perspective view of a welding apparatus according to an exemplary embodiment of the present invention. Fig. 3 is a side view of a welding apparatus according to an exemplary embodiment of the present invention.

[0027] As in Fig. 1 to 3, in an exemplary embodiment of the present invention, a welding apparatus is provided. The welding apparatus includes: a frame body 4, a first movable module 1, a second movable module 2, a third movable module 3, and a welding module 5. The first movable module 1 is installed on the frame body 4 and can move in a first horizontal direction. The second movable module 2 is installed on the first movable module 1 and can move in a second horizontal direction perpendicular to the first horizontal direction. The third movable module 3 is installed on the second movable module 2 and can move in a vertical direction perpendicular to the first and second horizontal directions. The welding module 5 is installed on the third movable module 3 and can move together with the first movable module 1, the second movable module 2, and the third movable module 3.Therefore, the entire welding machine has three degrees of freedom.

[0028] As in Fig. 1 to 3, in the illustrated embodiments, the welding module 5 is suspended outside the frame body 4, and the first movable module 1 is provided in the inner chamber 40 of the frame body 4 to reduce the distance between the welding module 5 and the frame body 4. According to the invention, due to the small distance between the welding module 5 and the fixed frame body 4, the welding apparatus has good rigidity and stability, and the welding module 5 is not prone to uncontrollable vibration, thereby improving welding accuracy.

[0029] As in Fig. As shown in Figures 1 to 3, in the illustrated embodiment, the first movable module 1 includes a pair of first slide rails 11 and a pair of first sliders 12. The pair of first slide rails 11 extend along the first horizontal direction and are spaced apart by a predetermined distance in the second horizontal direction. The pair of first sliders 12 are respectively installed on the pair of first sliders 11. The frame body 4 includes an upper frame 41, and the first slide rail 11 is fixed to the inside of the upper frame 41.

[0030] As in Fig. 1 to 3, in the illustrated embodiment, the first movable module 1 further comprises a horizontal mounting plate 10 and a first drive device 13. The pair of first sliders 12 are fixed to the upper surface of the horizontal mounting plate 10. The first drive device 13 is installed in the inner chamber 40 of the frame body 4 and connected to the horizontal mounting plate 10. The first drive device 13 is used to drive the horizontal mounting plate 10 for movement in the first horizontal direction.

[0031] As in Fig. 1 to 3, in the illustrated embodiments, the first drive device 13 includes: a first lead screw (not shown), a first nut (not shown), and a first motor (not shown). The first lead screw is rotated and is installed on the frame body 4. The first nut is fixed to the horizontal mounting plate 10 and screwed onto the first lead screw. The first motor is installed on the frame body 4, and its output shaft is connected to the first lead screw. When the first motor drives the first lead screw for rotation, the first lead screw drives the first nut and the horizontal mounting plate 10 for joint movement in the first horizontal direction.

[0032] As in Fig. 1 to 3, in the illustrated embodiment, the second movable module 2 comprises: an installation frame 20, a second slide rail 21, and a second slider 22. The second slide rail 21 extends along the second horizontal direction and is fixed to the installation frame 20. The second slider 22 is installed on the second slide rail 21 for movement in the second horizontal direction. The installation frame 20 is fixed to the horizontal movement plate 10 so that the second movable module 2 can move along the first horizontal direction together with the horizontal mounting plate 10. In the illustrated embodiment, the installation frame 20 has a rectangular shape to improve its structural rigidity and stability.

[0033] As in Fig. 1 to 3, in the illustrated embodiment, the second movable module 2 further comprises a second drive device (not shown) installed on the installation frame 20 and connected to the second slider 22. The second drive device is used to drive the second slider 22 for movement in the second horizontal direction.

[0034] As in Fig. 1 to 3, in the illustrated embodiments, the second drive device includes a second lead screw (not shown), a second nut (not shown), and a second motor (not shown). The second lead screw is rotatably installed on the installation frame 20. The second nut is fixed to the second slider 22 and screwed onto the second lead screw. The second motor is installed on the installation frame 20, and its output shaft is connected to the second lead screw. When the second motor drives the second lead screw for rotation, the second lead screw drives the second nut and the second slider 22 for joint movement in the second horizontal direction.

[0035] As in Fig. As shown in Figures 1 to 3, in the illustrated embodiments, when the welding machine performs a welding task, the second movable module 2 can be partially or completely moved into the inner chamber 40 of the frame body 4 to further reduce the distance between the welding module 5 and the frame body 4. This can improve the rigidity and stability of the welding machine and further improve the welding accuracy.

[0036] As in Fig. 1 to 3, in the embodiments shown, the third movable module 3 comprises: a vertical mounting plate 30, a third slide rail (not shown), a third slider (not shown), and a mounting bracket 31. The third slide rail extends vertically and is fixed to the vertical mounting plate 30. The third slider is installed on the third rail such that vertical movement is possible. The mounting bracket 31 is fixed to the third slider such that it moves vertically together with the third slider. The welding module 5 is installed on the mounting bracket 31 for movement along the vertical direction together with the mounting bracket 31. The vertical mounting plate 30 is fixed to the second slider 22 so that the third movable module 3 can move along the second horizontal direction together with the second slider 22.

[0037] As in Fig. As shown in Figures 1 to 3, in the illustrated embodiments, the third movable module 3 further comprises a third drive device 32 installed on the vertical mounting plate 30 and connected to the third slider. The third drive device 32 is used to drive the third slider for vertical movement.

[0038] As in Fig. 1 to 3, in the illustrated embodiments, the third drive device includes a third lead screw (not shown), a third nut (not shown), and a third motor (not shown). The third lead screw is rotatably installed on the vertical mounting plate 30. The third nut is fixed to the third slider and screwed onto the third lead screw. The third motor is installed on the vertical mounting plate 30, and its output shaft is connected to the third lead screw. When the third motor drives the third lead screw for rotation, the third lead screw drives the third nut and the third slider for a combined vertical movement.

[0039] As in Fig. 1 to 3, in the illustrated embodiments, the welding device further comprises a visual module 6, which is installed on the mounting bracket 31 of the third movable module such that it can move synchronously with the mounting bracket 31 and the welding module 5. The welding module 5 is adapted to perform welding tasks under the visual guidance of the visual module 6. In the illustrated embodiment, the visual module 6 comprises at least one camera.

[0040] As in Fig. As shown in Figures 1 to 3, in the illustrated embodiments, the welding module 5 includes a welding head for heating and welding. The welding device also includes a welding head cleaning device 7 installed on the frame body 4 to remove contaminants such as oxides from the welding head of the welding module 5.

[0041] As in Fig. 1 to 3, in the embodiments shown, the frame body 4 comprises a crossbeam 42 arranged on its lower side, wherein the welding head cleaning device 7 is arranged outside the frame body 4 and is fixed to the crossbeam 42 of the frame body 4.

[0042] As in Fig. As shown in Figures 1 to 3, in the illustrated embodiments, the welding device further includes a power supply 9 fixed to the upper side of the frame body 4 for supplying power to the welding device. Thus, the welding device does not require an external power source, making it easier to use.

[0043] As in Fig. 1 to 3, in the embodiments shown, the welding machine further comprises an electrical control box 8 installed in the inner chamber 40 of the frame body 4 to control the welding machine.

[0044] It should be clear to those skilled in the art that the embodiments described above are illustrative and not restrictive. For example, various modifications to the embodiments described herein may be made by those skilled in the art, and features described for various embodiments may be freely combined without resulting in conflicts of configuration or principle.

[0045] While several exemplary embodiments have been described and shown above, it should be apparent to those skilled in the art that various changes or modifications may be made to these embodiments without departing from the scope of the invention as defined by the claims and their equivalents.

[0046] Whenever singular wording is used herein, it may refer to multiple units, unless expressly excluded. Furthermore, references to "one embodiment" of the present invention do not exclude the possibility of further embodiments having the features mentioned. And when embodiments are stated to "comprise" or "have" an element or a plurality of elements with a particular property, other such elements without that property may also be contemplated. QUOTES CONTAINED IN THE DESCRIPTION

[0000] This list of documents submitted by the applicant was generated automatically and is included solely for the convenience of the reader. This list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions. Cited patent literature

[0000] CN 202311141606.2

[0001]

Claims

[1] Welding device, comprising: a frame body (4), a first movable module (1) installed on the frame body (4) and movable in a first horizontal direction, a second movable module (2) installed on the first movable module (1) and movable in a second horizontal direction perpendicular to the first horizontal direction, a third movable module (3) installed on the second movable module (2) and movable in a vertical direction perpendicular to the first and second horizontal directions, and a welding module (5) installed on the third movable module (3) and movable together with the first, second and third movable modules (1, 2, 3), wherein the welding module (5) is suspended outside the frame body (4), wherein the first movable module (1) is provided in an inner chamber (40) of the frame body (4) in order to reduce the distance between the welding module (5) and the frame body (4). [2] Welding device according to claim 1, wherein the first movable module (1) comprises: a pair of first slide rails (11) extending along the first horizontal direction and spaced apart by a predetermined distance in the second horizontal direction, and a pair of first sliders (12) each installed on the pair of first sliders (11) so that they can slide, wherein the frame body (4) comprises an upper frame (41), and wherein the first slide rail (11) is fixed on the inner side of the upper frame (41). [3] Welding device according to claim 2, wherein the first movable module (1) further comprises: a horizontal mounting plate (10), wherein the pair of first sliders (12) are fixed to the upper surface of the horizontal mounting plate (10), and a first drive device (13) installed in the inner chamber (40) of the frame body (4) and connected to the horizontal mounting plate (10), wherein the first drive means (13) is used to drive the horizontal mounting plate (10) for movement in the first horizontal direction. [4] Welding device according to claim 3, wherein the first drive device (13) comprises: a first lead screw rotatably installed on the frame body (4), a first nut fixed to the horizontal mounting plate (10) and screwed onto the first lead screw, and a first motor installed on the frame body (4) and whose output shaft is connected to the first lead screw, wherein, when the first motor drives the first lead screw for rotation, the first lead screw drives the first nut and the horizontal mounting plate (10) for joint movement in the first horizontal direction. [5] Welding device according to claim 3, wherein the second movable module (2) comprises: an installation frame (20), a second slide rail (21) extending along the second horizontal direction and fixed to the installation frame (20), and a second slider (22) slidably installed on the second slide rail (21) so as to be able to move in the second horizontal direction, wherein the installation frame (20) is fixed to the horizontal mounting plate (10) such that the second movable module (2) can move along the first horizontal direction together with the horizontal mounting plate (10). [6] Welding device according to claim 5, wherein the second movable module (2) further comprises: a second drive device installed on the installation frame (20) and is connected to the second slider (22), wherein the second drive means is used to drive the second slider (22) for movement in the second horizontal direction. [7] Welding device according to claim 6, wherein the second drive device comprises: a second lead screw rotatably installed on the installation frame (20), a second nut fixed to the second slider (22) and screwed onto the second lead screw, and a second motor installed on the installation frame (20) and whose output shaft is connected to the second lead screw, wherein, when the second motor drives the second lead screw for rotation, the second lead screw drives the second nut and the second slider (22) for joint movement in the second horizontal direction. [8] Welding device according to one of claims 1 to 7, wherein, when the welding device performs welding tasks, the second movable module (2) can be moved partially or completely into the inner chamber (40) of the frame body (4) to further reduce the distance between the welding module (5) and the frame body (4). [9] Welding device according to claim 5, wherein the third movable module (3) comprises: a vertical mounting plate (30), a third slide rail extending in the vertical direction and fixed to the vertical mounting plate (30), a third slider slidably installed on the third slide rail so as to move in the vertical direction, and a mounting bracket (31) fixed to the third slider such that it can move along the vertical direction together with the third slider, wherein the welding module (5) is installed on the mounting bracket (31) such that the welding module (5) can be moved along the vertical direction together with the mounting bracket (31), and wherein the vertical mounting plate (30) is fixed to the second slider (22) such that the third movable module (3) can move along the second horizontal direction together with the second slider (22). [10] Welding device according to claim 9, wherein the third movable module (3) further comprises: a third drive device (32) installed on the vertical mounting plate (30) and connected to the third slider, wherein the third drive means (32) is used to drive the third slider for movement in the vertical direction. [11] Welding device according to claim 10, wherein the third drive device comprises: a third lead screw rotatably mounted on the vertical mounting plate (30), a third nut fixed to the third slider and screwed onto the third lead screw, and a third motor installed on the vertical mounting plate (30) and whose output shaft is connected to the third lead screw, wherein, when the third motor drives the third lead screw for rotation, the third lead screw drives the third nut and the third slider for joint movement in the vertical direction. [12] Welding apparatus according to claim 9, further comprising: a visual module (6) installed on the mounting bracket (31) of the third movable module (3) such that it can move synchronously with the mounting bracket (31) and the welding module (5), wherein the welding module (5) is suitable for carrying out welding tasks under the visual guidance of the visual module (6). [13] Welding device according to claim 1, wherein the welding module (5) comprises a welding head for heating and welding, the welding device further comprising: a welding head cleaning device (7) installed on the frame body (4) to remove contaminants from the welding head of the welding module (5). [14] Welding apparatus according to claim 13, wherein the frame body (4) comprises a crossbeam (42) arranged on its lower side, and wherein the welding head cleaning device (7) is arranged outside the frame body (4) and fixed to the crossbeam (42) of the frame body (4). [15] Welding apparatus according to claim 1, further comprising: a power supply (9) fixed to the upper side of the frame body (4) for supplying power to the welding machine.

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