Welding device for plate-shaped parts

Abstract

The utility model provides a welding device for plate-shaped parts. The technical problem that an existing welding device cannot flexibly adjust the welding position is solved. The utility model discloses a welding device for plate-shaped parts. Comprising an electrode group, a fourth servo motor for driving the electrode group to rotate, a first servo motor for driving the fourth servo motor to rotate, a first extension arm for mounting the first servo motor, a second servo motor for driving the first extension arm to rotate, and a second extension arm for mounting the second servo motor, the third servo motor is used for driving the second extension arm to rotate; a rotating shaft of the first servo motor is parallel to a rotating shaft of the second servo motor, and a rotating shaft of the third servo motor is perpendicular to a rotating shaft of the fourth servo motor, the length direction of the first extension arm and the length direction of the second extension arm. The welding device has higher degree of freedom, and can be used for flexibly welding and processing different positions of the plate-shaped part.

Description

Technical Field

[0001] The utility model relates to the technical field of welding equipment, in particular to a welding device for plate-shaped parts. Background Art

[0002] In recent years, the degree of mechanization and automation in the manufacturing industry has become increasingly higher. Among them, in the field of welding, the previous handheld welding is gradually transitioning to semi-automatic welding devices. The existing welding devices generally install the parts on the clamping table manually, and then drive the electrode to translate through the cylinder to achieve the welding of the parts. When producing and processing automotive parts, the welding of plate parts is involved; these plate parts are often large in size and irregular in shape, and often need to be welded in multiple places. However, the electrode degree of freedom of the existing welding device is very low, and it can often only perform simple translation in one direction, which cannot well meet the welding needs of such plate parts. Summary of the invention

[0003] The utility model aims to provide a welding device for plate-like parts, which has a higher degree of freedom and can flexibly perform welding processing at different positions of the plate-like parts.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] A welding device for plate-like parts, comprising: an electrode group, a fourth servo motor for driving the electrode group to rotate, a first servo motor for driving the fourth servo motor to rotate, a first extension arm for mounting the first servo motor, a second servo motor for driving the first extension arm to rotate, a second extension arm for mounting the second servo motor, and a third servo motor for driving the second extension arm to rotate; wherein the rotating shaft of the first servo motor is parallel to the rotating shaft of the second servo motor and the rotating shaft of the third servo motor, and is perpendicular to the rotating shaft of the fourth servo motor, the length direction of the first extension arm, and the length direction of the second extension arm; the electrode group comprises: a first electrode, a second electrode, and a power source for driving the first electrode to approach or move away from the second electrode; a straight line L is determined by the welding points of the first electrode and the second electrode during welding, and the rotating shaft of the fourth servo motor is parallel to the straight line L.

[0006] Optionally, the electrode group further includes: a bracket; the bracket includes: a first mounting plate and a second mounting plate parallel to each other, and a connecting plate connecting the first mounting plate and the second mounting plate; the power source is installed on the first mounting plate, and the second electrode is installed on the second mounting plate.

[0007] Optionally, the connecting plate is connected to the rotating shaft of the fourth servo motor; a first connecting part is provided at the left end of the first extension arm, and the fourth servo motor is rotatably connected to the first connecting part; the first servo motor is installed on the side of the first connecting part, and the second servo motor is located at the right end of the first extension arm.

[0008] Optionally, a fifth servo motor is provided at the right end of the first extension arm to drive it to rotate, and the rotating shaft of the fifth servo motor is parallel to the length direction of the first extension arm; the fifth servo motor is provided with a fifth connecting part on one side of its housing, and the fifth connecting part is connected to the rotating shaft of the second servo motor.

[0009] Optionally, a second mounting groove for mounting a second servo motor is provided at the upper end of the second extension arm, and a third mounting groove for mounting a third servo motor is provided at the lower end of the second extension arm.

[0010] Optionally, it also includes: a sixth servo motor driving the third servo motor to rotate; the rotating shaft of the sixth servo motor extends in the up-down direction and is perpendicular to the rotating shaft of the third servo motor.

[0011] Optionally, the sixth servo motor is provided with a sixth connecting portion on one side of its housing, and the sixth connecting portion is connected to the rotating shaft of the third servo motor; the rotating shaft of the sixth servo motor is connected to the base.

[0012] Optionally, the first electrode includes: a first main body section and a first bending section connected to the first main body section; the first bending section is installed on a first cantilever; and the power source drives the first electrode to move closer to or away from the second electrode by driving the first cantilever to move.

[0013] Optionally, the second electrode includes: a second main body section, and a second bending section connected to the second main body section; the second bending section is installed on a second cantilever; and the second cantilever is installed on a second mounting plate.

[0014] The working principle of the utility model is: the first servo motor drives the fourth servo motor and the electrode group to rotate, the second servo motor drives the first extension arm to rotate, and the third servo motor drives the second extension arm to rotate, so that the position of the electrode group can be adjusted in the left-right direction or the up-down direction. The fourth servo motor drives the electrode group to rotate, so that the position of the electrode group can be adjusted in the front-back direction and the left-right direction. The power source drives the first electrode to approach the second electrode, so that the plate-shaped parts can be welded; the power source drives the first electrode away from the second electrode, so that the welding can be stopped.

[0015] It can be seen from this that the beneficial effect of the utility model is that the electrode group has a higher degree of freedom and can flexibly adjust its position, so that welding processing can be performed at different positions of the plate-like parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 It is a structural schematic diagram of the utility model;

[0018] Figure 2 A schematic diagram of a first servo motor adjusting the inclination angle of an electrode group;

[0019] Figure 3 A schematic diagram of a fifth servo motor adjusting the inclination angle of the electrode group;

[0020] Figure 4 Schematic diagram of the structure of the electrode group.

[0021] Figure numerals: 1. first servo motor; 2. second servo motor; 3. third servo motor; 4. fourth servo motor; 5. fifth servo motor; 6. sixth servo motor; 7. electrode group; 8. first extension arm; 9. second extension arm; 10. first electrode; 11. second electrode; 12. power source; 13. bracket; 14. first mounting plate; 15. second mounting plate; 16. first connecting part; 17. first cantilever; 18. second cantilever; 19. base. DETAILED DESCRIPTION

[0022] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0023] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0024] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0025] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] The disclosure below provides many different embodiments or examples to implement different structures of the present invention. In order to simplify the disclosure of the present invention, the components and settings of specific examples are described below. Of course, they are only examples and are not intended to limit the present invention.

[0027] The following is combined with Figure 1 ~Attached Figure 4 The embodiments of the present utility model are described in detail.

[0028] The embodiment of the utility model provides a welding device for plate-like parts. The welding device for plate-like parts includes: an electrode group 7, a fourth servo motor 4 driving the electrode group 7 to rotate, a first servo motor 1 driving the fourth servo motor 4 to rotate, a first extension arm 8 for mounting the first servo motor 1, a second servo motor 2 driving the first extension arm 8 to rotate, a second extension arm 9 for mounting the second servo motor 2, and a third servo motor 3 driving the second extension arm 9 to rotate. The rotating shaft of the first servo motor 1 is parallel to the rotating shaft of the second servo motor 2 and the rotating shaft of the third servo motor 3, and is perpendicular to the rotating shaft of the fourth servo motor 4, the length direction of the first extension arm 8, and the length direction of the second extension arm 9. The electrode group 7 includes: a first electrode 10, a second electrode 11, and a power source 12 driving the first electrode 10 to approach or move away from the second electrode 11. It should be understood that the power source 12 can be configured as a linear motor, which drives the first electrode 10 to translate so as to move the first electrode 10 closer to or farther from the second electrode 11; the power source 12 can also be configured as a swing cylinder or a servo motor, which drives the first electrode 10 to rotate forward or reverse so as to move the first electrode 10 closer to or farther from the second electrode 11. The straight line L is determined by the welding point of the first electrode 10 and the welding point of the second electrode 11 during welding, and the rotating shaft of the fourth servo motor 4 is parallel to the straight line L.

[0029] The specific implementation of the present utility model is described below: the fourth servo motor 4 and the electrode group 7 are driven to rotate by the first servo motor 1, the first extension arm 8 is driven to rotate by the second servo motor 2, and the second extension arm 9 is driven to rotate by the third servo motor 3, so that the position of the electrode group 7 can be adjusted in the left-right direction or the up-down direction. The fourth servo motor 4 drives the electrode group 7 to rotate, and the position of the electrode group 7 can be adjusted in the front-to-back direction and the left-to-right direction. The power source 12 drives the first electrode 10 to approach the second electrode 11, so that the plate-like parts can be welded; the power source 12 drives the first electrode 10 away from the second electrode 11, so that the welding can be stopped. The electrode group 7 of the present utility model has a higher degree of freedom and can flexibly adjust the position, so that welding processing can be performed at different positions of the plate-like parts.

[0030] Furthermore, the electrode group 7 also includes: a bracket 13; the bracket 13 includes: a first mounting plate 14 and a second mounting plate 15 parallel to each other, and a connecting plate connecting the first mounting plate 14 and the second mounting plate 15; the power source 12 is installed on the first mounting plate 14, and the second electrode 11 is installed on the second mounting plate 15.

[0031] Further, the connecting plate is connected to the rotating shaft of the fourth servo motor 4; the first connecting portion 16 is provided at the left end of the first extension arm 8, and the fourth servo motor 4 is rotatably connected to the first connecting portion 16; the first servo motor 1 is installed on the side of the first connecting portion 16, and the second servo motor 2 is located at the right end of the first extension arm 8. It should be understood that by driving the fourth servo motor 4 and the electrode group 7 to rotate through the first servo motor 1, the inclination angle of the electrode group 7 in the left and right directions can also be adjusted, so as to weld the plate-like parts that are inclined to the left or right.

[0032] Furthermore, a fifth servo motor 5 is provided at the right end of the first extension arm 8 to drive the first extension arm 8 to rotate, and the rotation axis of the fifth servo motor 5 is parallel to the length direction of the first extension arm 8; the fifth servo motor 5 is provided with a fifth connection portion on one side of its housing, and the fifth connection portion is connected to the rotation axis of the second servo motor 2. It should be understood that by driving the first extension arm 8 to rotate around the axial direction by the fifth servo motor 5, the inclination angle of the electrode group 7 in the front-to-back direction can be adjusted, so as to weld the plate-like parts that are inclined forward or backward. Through the cooperation of the first servo motor 1 and the fifth servo motor 5, plate-like parts with any inclination angle and inclination direction can be welded.

[0033] Furthermore, a second mounting groove for mounting the second servo motor 2 is provided at the upper end of the second extension arm 9 , and a third mounting groove for mounting the third servo motor 3 is provided at the lower end of the second extension arm 9 .

[0034] Furthermore, it also includes: a sixth servo motor 6 driving the third servo motor 3 to rotate; the shaft of the sixth servo motor 6 extends in the up-down direction and is perpendicular to the shaft of the third servo motor 3. It should be understood that the sixth servo motor 6 can drive the electrode group 7 to move a long distance in the horizontal direction, so as to be suitable for welding at different stations; in this way, when one station is taking and placing a plate-like part, the electrode group 7 can perform welding processing on a plate-like part at another station, alternating back and forth, thereby improving processing efficiency.

[0035] Furthermore, the sixth servo motor 6 is provided with a sixth connecting portion on one side of its housing, and the sixth connecting portion is connected to the rotating shaft of the third servo motor 3 ; the rotating shaft of the sixth servo motor 6 is connected to the base 19 .

[0036] Furthermore, the first electrode 10 includes: a first main body section and a first bending section connected to the first main body section; the first bending section is installed on the first cantilever 17; the power source 12 drives the first cantilever 17 to move, thereby driving the first electrode 10 to move closer to or away from the second electrode 11.

[0037] Furthermore, the second electrode 11 includes: a second main body section, and a second bending section connected to the second main body section; the second bending section is mounted on a second cantilever 18 ; and the second cantilever 18 is mounted on a second mounting plate 15 .

[0038] Although specific embodiments of the present invention are described above, those skilled in the art should understand that various changes or modifications may be made to these embodiments without departing from the principle and essence of the present invention, but these changes and modifications are all within the scope of protection of the present invention.

Claims

1. A welding device for plate-like parts, characterized in that: include: an electrode assembly (7); and a fourth servo motor (4) for driving the electrode group (7) to rotate; and a first servo motor (1) driving a fourth servo motor (4) to rotate; and A first extension arm (8) for mounting the first servo motor (1); and a second servo motor (2) for driving the first extension arm (8) to rotate; and A second extension arm (9) for mounting a second servo motor (2); and a third servo motor (3) for driving the second extension arm (9) to rotate; in, The rotating shaft of the first servo motor (1) is parallel to the rotating shaft of the second servo motor (2) and the rotating shaft of the third servo motor (3), and is perpendicular to the rotating shaft of the fourth servo motor (4), the length direction of the first extension arm (8), and the length direction of the second extension arm (9); The electrode group (7) comprises: a first electrode (10), a second electrode (11), and a power source (12) for driving the first electrode (10) to approach or move away from the second electrode (11); A straight line L is determined by the welding point of the first electrode (10) and the welding point of the second electrode (11) during welding, and the rotating shaft of the fourth servo motor (4) is parallel to the straight line L.

2. The plate-shaped parts welding device according to claim 1, characterized in that: The electrode group (7) further comprises: a bracket (13); The bracket (13) comprises: a first mounting plate (14) and a second mounting plate (15) which are parallel to each other, and a connecting plate connecting the first mounting plate (14) and the second mounting plate (15); The power source (12) is mounted on a first mounting plate (14), and the second electrode (11) is mounted on a second mounting plate (15).

3. The plate-shaped parts welding device according to claim 2, characterized in that: The connecting plate is connected to the rotating shaft of the fourth servo motor (4); A first connecting portion (16) is provided at the left end of the first extension arm (8), and the fourth servo motor (4) is rotatably connected to the first connecting portion (16); The first servo motor (1) is mounted on a side surface of the first connecting portion (16), and the second servo motor (2) is located at the right end of the first extension arm (8).

4. The plate-shaped parts welding device according to any one of claims 1 to 3, characterized in that: A fifth servo motor (5) is provided at the right end of the first extension arm (8) for driving the first extension arm (8) to rotate, and the rotation axis of the fifth servo motor (5) is parallel to the length direction of the first extension arm (8); The fifth servo motor (5) is provided with a fifth connecting portion on one side of its housing, and the fifth connecting portion is connected to the rotating shaft of the second servo motor (2).

5. The plate-shaped parts welding device according to claim 4, characterized in that: The upper end of the second extension arm (9) is provided with a second mounting groove for mounting the second servo motor (2), and the lower end of the second extension arm (9) is provided with a third mounting groove for mounting the third servo motor (3).

6. The plate-shaped parts welding device according to claim 5, characterized in that: It also includes: a sixth servo motor (6) for driving the third servo motor (3) to rotate; The rotating shaft of the sixth servo motor (6) extends in the up-down direction and is perpendicular to the rotating shaft of the third servo motor (3).

7. The plate-shaped parts welding device according to claim 6, characterized in that: The sixth servo motor (6) is provided with a sixth connecting portion on one side of its housing, the sixth connecting portion being connected to the rotating shaft of the third servo motor (3); the rotating shaft of the sixth servo motor (6) is connected to the base (19).

8. The plate-shaped parts welding device according to any one of claims 1 to 3, characterized in that: The first electrode (10) comprises: a first main body section, and a first bending section connected to the first main body section; The first bending section is mounted on the first cantilever (17); The power source (12) drives the first cantilever (17) to move, thereby driving the first electrode (10) to move closer to or farther away from the second electrode (11).

9. The plate-shaped parts welding device according to any one of claims 1 to 3, characterized in that: The second electrode (11) comprises: a second main body section, and a second bent section connected to the second main body section; The second bending section is mounted on the second cantilever (18); the second cantilever (18) is mounted on the second mounting plate (15).

Images