Manipulator spot welding workstation with three external shafts

Abstract

The utility model relates to the field of mechanical automation welding, and discloses a three-external-shaft manipulator spot welding work station which comprises a work station integral base, an H-arm horizontal rotating shaft is installed on the work station integral base, two first workpiece and clamp vertical overturning shafts and two second workpiece and clamp vertical overturning shafts are installed on the H-arm horizontal rotating shaft, and the two first workpiece and clamp vertical overturning shafts and the two second workpiece and clamp vertical overturning shafts are installed on the work station integral base. A mechanical arm base is fixedly arranged on the work station overall base, and a six-axis mechanical arm is assembled on the mechanical arm base. The utility model has the following advantages and effects: the automatic transfer of the clamp between the welding position and the operation position is realized, the manual intervention is reduced, the labor intensity of operators is reduced, the production rhythm is accelerated, the production efficiency is improved, the workstation can realize the welding at various angles, and the production efficiency is improved. The welding capacity of the workstation for different workpieces and welding spots at different positions is greatly improved, the application range of the workstation is widened, and the welding requirements of complex workpieces are met.

Description

Technical Field

[0001] This utility model relates to the field of mechanical automation welding technology, and in particular to a three-external-axis robotic spot welding workstation. Background Technology

[0002] Spot welding is a common joining process in modern industrial production, widely used in industries such as automobile manufacturing and machining. However, conventional automated spot welding workstations have some limitations in practical applications:

[0003] The transfer of fixtures between the welding position and the operating position usually relies on manual operation, which increases the labor intensity of operators and makes it difficult to improve production efficiency. Conventional workstations have limited welding angles and can generally only achieve welding at one or two angles, which cannot meet the welding needs of multiple welding points on complex workpieces. Therefore, a three-external-axis robotic spot welding workstation needs to be designed to solve the above problems.

[0004] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0005] The purpose of this invention is to provide a three-external-axis robotic spot welding workstation to solve the above-mentioned problems.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a three-external-axis robotic spot welding workstation, comprising:

[0007] The workstation has an overall base, on which an H-arm horizontal rotation axis is mounted. Two workpiece and fixture vertical rotation axes one and two workpiece and fixture vertical rotation axes two are mounted on the H-arm horizontal rotation axis. A robot arm base is fixedly installed on the overall base, and a six-axis robot arm is mounted on the robot arm base. A robot arm welding clamp is mounted on the six-axis robot arm.

[0008] A further feature of this invention is that the H-arm horizontal rotation shaft includes a servo motor and an H-arm, the servo motor is fixedly mounted on the overall base of the workstation, and the output end of the servo motor is fixedly connected to the H-arm.

[0009] A further feature of this invention is that the vertical flipping axis of the workpiece and the fixture includes a second servo motor and a first workpiece fixture disk. The second servo motor is fixedly mounted on the H-arm, and the output end of the second servo motor is fixedly connected to the first workpiece fixture disk.

[0010] A further feature of this invention is that the workpiece and fixture vertical flipping axis two includes a servo motor three and a workpiece fixture disk two. The servo motor three is fixedly mounted on the H-arm, and the output end of the servo motor three is fixedly connected to the workpiece fixture disk two.

[0011] The beneficial effects of this utility model are:

[0012] This utility model's H-arm horizontal rotary shaft enables automatic transfer of the fixture between the welding position and the operating position, reducing manual intervention, lowering the labor intensity of operators, and accelerating the production pace and improving production efficiency.

[0013] The first and second vertical flip axes of the workpiece and fixture enable the workstation to perform welding at multiple angles, greatly improving the workstation's welding capabilities for different workpieces and weld points at different positions, expanding the workstation's application range, and meeting the welding needs of complex workpieces. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the structure of the three external axis robotic spot welding workstation proposed in this utility model.

[0016] Figure 2 This is a schematic diagram of the main structure of the three external axis robotic spot welding workstation proposed in this utility model.

[0017] Figure 3 This is a side view of the three-external-axis robotic spot welding workstation proposed in this utility model.

[0018] Figure 4 This is a top view of the three-external-axis robotic spot welding workstation proposed in this utility model.

[0019] Figure 5 yes Figure 1 A schematic diagram of part A in the diagram.

[0020] In the diagram: 1. Workstation base; 2. H-arm horizontal rotation axis; 3. Workpiece and fixture vertical tilting axis one; 4. Workpiece and fixture vertical tilting axis two; 5. Robotic arm base; 6. Six-axis robotic arm; 7. Robotic arm welding clamp. Detailed Implementation

[0021] In the description of this utility model, 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; they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood through the specific circumstances.

[0022] The technical solution of this utility model will now be clearly and completely described with reference to specific embodiments. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0023] See Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 This utility model provides a three-external-axis robotic spot welding workstation, comprising:

[0024] The workstation has an overall base 1, on which an H-arm horizontal rotation axis 2 is installed. On the H-arm horizontal rotation axis 2, two workpiece and fixture vertical rotation axes 1 and 2 are installed. On the workstation overall base 1, a robot arm base 5 is fixedly installed. On the robot arm base 5, a six-axis robot arm 6 is mounted. On the six-axis robot arm 6, a robot arm welding clamp 7 is mounted.

[0025] It should be noted that the overall base 1 of the workstation ensures the stability of the spatial position of the fixture and the robotic arm, enabling the welding program to be programmed at once, reducing the programming workload and time, improving programming efficiency, and reducing labor costs.

[0026] Specifically, the H-arm horizontal rotary shaft 2 includes a servo motor and an H-arm. The servo motor is fixedly mounted on the workstation base 1, and its output end is fixedly connected to the H-arm. It should be noted that the H-arm horizontal rotary shaft 2 is mounted on the workstation base 1 and is driven to rotate by the servo motor. This shaft can automatically transfer the fixture between the welding position and the operating position. Before the welding process begins, the H-arm horizontal rotary shaft 2 rotates the fixture to the operating position, facilitating the operator to load the workpiece and adjust the fixture. Once ready, the H-arm horizontal rotary shaft 2 rotates the fixture to the welding position, where the six-axis robot 6, in conjunction with the robot welding clamp 7, performs spot welding. This process achieves automated transfer, reduces the labor intensity of the operator, and improves production efficiency.

[0027] Specifically, the workpiece and fixture vertical flipping axis 3 includes a servo motor 2 and a workpiece fixture disk 1. The servo motor 2 is fixedly mounted on the H-arm, and its output end is fixedly connected to the workpiece fixture disk 1. The workpiece and fixture vertical flipping axis 4 includes a servo motor 3 and a workpiece fixture disk 2. The servo motor 3 is fixedly mounted on the H-arm, and its output end is fixedly connected to the workpiece fixture disk 2. It should be noted that by precisely controlling the rotation angle of the workpiece fixture disk 1 and the workpiece fixture disk 2 through the servo motor 2 and the servo motor 3, the fixture can drive the workpiece to flip at multiple angles. This enables the workstation to have the function of welding at multiple angles and can weld weld points in more positions, effectively solving the problem of limited welding angles in conventional workstations. In the actual welding process, according to the specific position and angle requirements of the workpiece weld point, the workpiece fixture disk 1 and the workpiece fixture disk 2 work together to adjust the workpiece to a suitable welding angle. Then, the six-axis robot 6 drives the robot welding gun 7 to complete the spot welding task.

[0028] Working principle:

[0029] S1: Before the welding process begins, the servo motor 1 in the horizontal rotating shaft 2 of the H-arm starts. According to the preset program, the servo motor 1 outputs power to drive the H-arm to rotate, and rotates the workpiece and fixture vertical flipping shaft 1 3, the workpiece and fixture vertical flipping shaft 2 4 and the corresponding fixtures installed on the H-arm to the operating position. At this time, the operator can easily place the workpiece to be welded in the fixture and perform clamping and adjustment.

[0030] S2: When the workpiece is clamped and ready for welding, the servo motor of the horizontal rotation axis 2 of the H-arm starts again and rotates in the reverse or forward direction according to the workstation layout and program settings of the H-arm, rotating the fixture from the operating position to the welding position. This process realizes the automated transfer of the fixture to different positions, reduces the labor intensity of manual handling and adjustment of the fixture, and improves the production rhythm and efficiency.

[0031] S3: After the fixture is transferred to the welding position, according to the specific position and angle requirements of the workpiece weld point, the servo motor 2 in the vertical rotation axis 3 of the workpiece and fixture and the servo motor 3 in the vertical rotation axis 4 of the workpiece and fixture start to work. The servo motor 2 drives the workpiece fixture disk 1 to rotate, and the servo motor 3 drives the workpiece fixture disk 2 to rotate. The two vertical rotation axes work together. By precisely controlling the rotation angle, the fixture can drive the workpiece to rotate at multiple angles. For example, for complex workpieces with weld points with different tilt angles, the two vertical rotation axes can adjust the workpiece to a suitable welding angle, so that the robotic welding clamp 7 can accurately align the weld point for welding. This solves the problem of limited welding angle in conventional workstations and greatly improves the workstation's ability to weld different workpieces and weld points in different positions.

[0032] S4: After the workpiece and fixture are adjusted to the appropriate position and angle, the six-axis robot 6 starts to move according to the preset welding program. The joints of the six-axis robot 6 move in coordination, driving the robot welding clamp 7 installed at its end to move to the corresponding welding point position. When the robot welding clamp 7 reaches the welding point position, it performs spot welding on the workpiece according to the parameters set in the program, such as the welding current and welding time. By precisely controlling the welding parameters, the quality and strength of the weld point are guaranteed. After the welding of one weld point is completed, the six-axis robot 6 drives the robot welding clamp 7 to move to the next welding point position, repeating the above operation until the welding task of all weld points is completed.

[0033] The above provides a detailed description of the three-external-axis robotic spot welding workstation provided by this utility model. Specific embodiments have been used to illustrate the principles and implementation methods of this utility model. The descriptions of these embodiments are merely for the purpose of helping to understand the method and core ideas of this utility model. It should be noted that those skilled in the art can make various improvements and modifications to this utility model without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A three-external-axis robot spot welding station, characterized in that, Include: The workstation overall base (1) is installed on the H arm horizontal rotation shaft (2), the H arm horizontal rotation shaft (2) is installed on two workpiece and clamp vertical turnover shaft one (3) and two workpiece and clamp vertical turnover shaft two (4), the workstation overall base (1) is fixedly provided with the mechanical arm base (5), the mechanical arm base (5) is equipped with six-axis mechanical arm (6), the six-axis mechanical arm (6) is equipped with mechanical arm welding tongs (7).

2. The three-outer-shaft robot spot-welding station of claim 1, wherein, The H arm horizontal rotation shaft (2) includes a servo motor one and an H arm, the servo motor one is fixedly installed on the workstation overall base (1), and the output end of the servo motor one is fixedly connected with the H arm.

3. The three-outer-shaft robot spot-welding station of claim 2, wherein, The workpiece and clamp vertical turnover shaft one (3) includes a servo motor two and a workpiece clamp disc one, the servo motor two is fixedly installed on the H arm, and the output end of the servo motor two is fixedly connected with the workpiece clamp disc one.

4. The three-outer-shaft robot spot-welding station of claim 2, wherein, The workpiece and clamp vertical turnover shaft two (4) includes a servo motor three and a workpiece clamp disc two, the servo motor three is fixedly installed on the H arm, and the output end of the servo motor three is fixedly connected with the workpiece clamp disc two.

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