A can body welding station

Abstract

The application provides a tank body welding workstation, which comprises a welding positioner, a welding robot, a welding machine and a pneumatic clamp; the pneumatic clamp comprises a main frame part, an outer ring fixing part and an inner ring fixing part; the main frame part comprises a bottom plate and an outer support plate which are arranged at intervals, the outer support plate is connected with the bottom plate through a plurality of round rods, and a through hole is arranged in the middle of the outer support plate; the outer ring fixing part comprises a ring-shaped movable plate, a first lifting cylinder, a clamping cylinder and a clamping block; and the inner ring fixing part comprises a second lifting cylinder and a pneumatic finger. The tank body welding workstation provided by the application can realize efficient switching between the inner wall surface fixation and the outer wall surface fixation of the tank body workpiece. The inner wall surface of the tank body workpiece is fixed when the outer ring seam of the tank body workpiece needs to be welded, and the outer wall surface of the tank body workpiece is fixed when the inner ring seam of the tank body workpiece needs to be welded. The tank body welding workstation can reduce the labor consumption, improve the production efficiency and make the production process safer.

Description

Technical Field

[0001] This application relates to the field of welding equipment technology, and in particular to a tank welding workstation. Background Technology

[0002] Welding is an important machining method in modern industrial production, especially essential for manufacturing large structural components or complex machine parts. A welding workstation is an automated welding system that utilizes robots for welding work, characterized by high welding speed, high welding quality, high welding stability, and a high degree of automation.

[0003] A welding workstation typically consists of a welding positioner and a welding robot. The welding positioner is used to rotate and flip the workpiece, enabling the adjustment of the workpiece's position during the welding process to achieve optimal weld placement and reduce the labor intensity of manual workpiece handling. The welding robot can coordinate with the welding positioner to automatically weld at various positions on the workpiece.

[0004] Currently, workpieces are typically fixed directly to the rotating surface of a welding positioner. However, when welding tanks with high sealing requirements, such as airtight containers, both the inner and outer circumferential seams need to be welded. Directly mounting the workpiece to the rotating surface of the welding positioner is difficult, thus requiring the use of clamps to secure the tank. When the clamp is positioned on the outside of the tank, it obstructs the outer side, limiting welding to the inner circumferential seam. Similarly, when the clamp is positioned on the inside of the tank, only the outer circumferential seam can be welded. To weld both the inner and outer circumferential seams, the clamp must be changed or the workpiece adjusted after welding one side of the tank. This process relies on manual labor, which is time-consuming, labor-intensive, reduces production efficiency, and is also unsafe. Summary of the Invention

[0005] This application provides a tank welding workstation, including a welding positioner, a welding robot, a welding machine, and a pneumatic clamp. The pneumatic clamp is mounted on the welding positioner, and the welding robot and the welding machine are mounted on one side of the welding positioner. The pneumatic clamp includes a main frame, an outer ring fixing part, and an inner ring fixing part; The main frame includes a base plate and an outer support plate spaced apart from each other. The base plate is fixedly connected to the rotary disk of the welding positioner. The outer support plate is connected to the base plate by multiple round rods. The outer support plate has a passage in the middle. The outer ring fixing part includes an annular movable plate, a first lifting cylinder, a clamping cylinder, and a clamping block. The bottom of the first lifting cylinder is fixed to the base plate, and the piston rod of the first lifting cylinder is connected to the annular movable plate. The annular movable plate is located between the base plate and the outer support plate. Multiple clamping cylinders are installed on the annular movable plate, and the multiple clamping cylinders are evenly distributed along the circumference of the annular movable plate. Each clamping cylinder has a clamping block connected to its piston rod. The first lifting cylinder can drive the annular movable plate closer to or further away from the outer support plate, so that the clamping block extends from the side of the outer edge of the outer support plate to the outer end face of the outer support plate or retracts the clamping block between the base plate and the outer support plate. The inner ring fixing part includes a second lifting cylinder and a pneumatic finger. The bottom of the second lifting cylinder is fixed on the base plate. The pneumatic finger is connected to the piston rod of the second lifting cylinder. The second lifting cylinder can drive the pneumatic finger through the inner ring of the annular movable plate and the through port.

[0006] The tank welding workstation provided in this application embodiment can efficiently switch between fixing the inner wall surface and fixing the outer wall surface of the tank workpiece. When welding the outer circumferential seam of the tank workpiece, the inner wall surface is fixed; when welding the inner circumferential seam, the outer wall surface is fixed. This reduces manpower consumption, improves production efficiency, and makes the production process safer.

[0007] In one possible implementation, the tank welding workstation provided in this application embodiment has a first sliding bearing on the annular movable plate, and the first sliding bearing is sleeved on the round rod.

[0008] In one possible implementation, the tank welding workstation provided in this application embodiment further includes an inner movable plate in the inner ring fixing part, and the piston rod of the second lifting cylinder is fixedly connected to the inner end face of the inner movable plate.

[0009] In one possible implementation, the tank welding workstation provided in this application embodiment further includes an intermediate support plate in the main frame portion. The intermediate support plate is located between the bottom plate and the outer support plate, and the intermediate support plate is connected to the bottom plate through a plurality of the round rods. The intermediate support plate is provided with a second sliding bearing, which is sleeved on the slide rod. One end of the slide rod is fixedly connected to the inner end face of the inner movable plate.

[0010] In one possible implementation, the tank welding workstation provided in this application embodiment has multiple second sliding bearings, which are evenly distributed along the circumference of the inner movable plate.

[0011] In one possible implementation, the tank welding workstation provided in this application embodiment has arc-shaped clamping surfaces on the side end faces of the clamping block and the side end faces of the grippers of the pneumatic fingers.

[0012] In one possible implementation, the tank welding workstation provided in this application embodiment has a notch on the outer edge of the outer support plate for the clamping block to pass through.

[0013] In one possible implementation, the tank welding workstation provided in this application embodiment has a plurality of first sliding bearings, which are evenly distributed along the circumference of the annular movable plate.

[0014] In one possible implementation, the tank welding workstation provided in this application embodiment includes a three-jaw pneumatic finger.

[0015] In one possible implementation, the tank welding workstation provided in this application embodiment includes a three-axis cylinder as the clamping cylinder. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a structural schematic diagram of the tank welding workstation; Figure 2 This is a schematic diagram of the pneumatic clamp. Figure 1 ; Figure 3 This is a schematic diagram of the pneumatic clamp. Figure 2 ; Figure 4 This is a diagram of a pneumatic clamp. Figure 1 ; Figure 5 This is a diagram of a pneumatic clamp. Figure 2 ; Figure 6 This is an explosion diagram of a pneumatic clamp; Figure 7 This is a structural diagram of the main framework. Figure 8 This is a structural diagram of the outer ring fixing part; Figure 9 This is a schematic diagram of the clamping block structure; Figure 10 This is a structural schematic diagram of the inner ring fixing part; Figure 11 This is a schematic diagram of the tank body workpiece.

[0018] Explanation of reference numerals in the attached figures 100-Pneumatic clamp; 10-Main framework section; 11-Base plate; 12-Outer support plate; 13-Intermediate support plate; 14-Round rod; 15 - Through the mouth; 16- Gap; 20 - Outer ring fixed part; 21-Circular movable plate; 22-First lifting cylinder; 23-Clamping cylinder; 24-Clamping block; 25 - First sliding bearing; 30 - Inner ring fixed part; 31 - Second lifting cylinder; 32-Pneumatic finger; 33-Inner movable plate; 34 - Second sliding bearing; 35-Slide bar; 40 - Tank body workpiece; 41-Outer circumferential seam; 42-Inner circumferential seam.

[0019] 200-Welding positioner; 300-Welding Robot; 400-Welding machine. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions in the embodiments of this application will be described in more detail below with reference to the accompanying drawings. In the drawings, the same or similar reference numerals denote the same or similar components or components having the same or similar functions throughout. The described embodiments are some, but not all, of the embodiments of this application. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0021] Figure 1This is a structural schematic diagram of the tank welding workstation; Figure 2 This is a schematic diagram of the pneumatic clamp. Figure 1 ; Figure 3 This is a schematic diagram of the pneumatic clamp. Figure 2 ; Figure 4 This is a diagram of a pneumatic clamp. Figure 1 ; Figure 5 This is a diagram of a pneumatic clamp. Figure 2 ; Figure 6 This is an explosion diagram of a pneumatic clamp; Figure 7 This is a structural diagram of the main framework. Figure 8 This is a structural diagram of the outer ring fixing part; Figure 9 This is a schematic diagram of the clamping block structure; Figure 10 This is a structural schematic diagram of the inner ring fixing part; Figure 11 This is a schematic diagram of the tank body workpiece.

[0022] See Figures 1 to 11 As shown in the figure, this application provides a tank welding workstation, including a welding positioner 200, a welding robot 300, a welding machine 400, and a pneumatic clamp 100. The pneumatic clamp 100 is mounted on the welding positioner 200, and the welding robot 300 and the welding machine 400 are mounted on one side of the welding positioner 200. The pneumatic clamp includes a main frame part 10, an outer ring fixing part 20, and an inner ring fixing part 30.

[0023] The main frame part 10 is used to connect the rotating disk of the welding positioner and to install and fix other parts.

[0024] See Figure 6 As shown, the main frame 10 includes a base plate 11 and an outer support plate 12 spaced apart from each other. The base plate 11 is fixedly connected to the rotary table of the welding positioner 200. The outer support plate 12 is connected to the base plate 11 by a plurality of round rods 14. The outer support plate 12 has a through-hole 15 in the middle for the pneumatic finger 32 to pass through. The outer edge of the outer support plate 12 has a notch 16 for the clamping block 24 to pass through.

[0025] The outer ring fixing part 20 is used to clamp the outer wall surface of the tank workpiece 40.

[0026] See Figure 7 and Figure 8As shown, the outer ring fixing part 20 includes an annular movable plate 21, a first lifting cylinder 22, a clamping cylinder 23, and a clamping block 24. The bottom of the first lifting cylinder 22 is fixed to the base plate 11, and the piston rod of the first lifting cylinder 22 is connected to the annular movable plate 21. The annular movable plate 21 is located between the base plate 11 and the outer support plate 12. Multiple clamping cylinders 23 are installed on the annular movable plate 21. The multiple clamping cylinders 23 are evenly distributed along the circumference of the annular movable plate 21. The clamping cylinders 23 are three-axis cylinders. Each clamping cylinder 23 has a clamping block 24 connected to its piston rod. The side end face of the clamping block 24 has an arc-shaped clamping surface that fits against the outer wall surface of the tank workpiece 40. The first lifting cylinder 22 can drive the annular movable plate 21 to move closer to or further away from the outer support plate 12, so that the clamping block 24 extends out of the notch 16 on the outer edge of the outer support plate 12 to the outer end face of the outer support plate 12 or the clamping block 24 retracts to the space between the bottom plate 11 and the outer support plate 12.

[0027] The inner ring fixing part 30 is used to clamp the inner wall surface of the tank workpiece 40.

[0028] See Figure 9 As shown, the inner ring fixing part 30 includes a second lifting cylinder 31 and a pneumatic finger 32. The bottom of the second lifting cylinder 31 is fixed on the base plate 11, and the pneumatic finger 32 is connected to the piston rod of the second lifting cylinder 31. The pneumatic finger 32 is a three-jaw type pneumatic finger 32. The side end face of the gripper of the pneumatic finger 32 has an arc-shaped clamping surface that fits against the inner wall surface of the tank workpiece 40. The second lifting cylinder 31 can drive the pneumatic finger 32 through the inner ring of the annular movable plate 21 and the through port 15.

[0029] Working process: When welding the tank workpiece 40, the second lifting cylinder 31 extends the pneumatic finger 32 through the through-hole 15 in the middle of the outer support plate 12, until it protrudes from the outer end face of the outer support plate 12. The tank workpiece 40 is initially positioned by placing it on the pneumatic finger 32. Then, the pneumatic finger 32 drives the gripper to extend outward, so that the gripping surface on the gripper is in contact with and tightly supported by the inner wall of the tank. At this time, the tank workpiece 40 is firmly fixed by the pneumatic finger 32 (see...). Figure 2 and Figure 4 This allows for unobstructed welding of the outer circumferential seam 41 on the outer wall surface of the tank workpiece 40.

[0030] After the outer circumferential seam 41 of the tank workpiece 40 is welded, the first lifting cylinder 22 extends, causing the clamping cylinder 23 to extend through the notch 16 on the outer edge of the outer support plate 12 to the outer end face of the outer support plate 12, so that the clamping block 24 is located on the outside of the tank workpiece 40. The clamping cylinder 23 is activated, driving the clamping block 24 to move closer to the tank workpiece 40 until the clamping surface of the clamping block 24 is in contact with and clamped to the outer wall of the tank. Then, the pneumatic finger 32 and the second lifting cylinder 31 are retracted in sequence, causing the pneumatic finger 32 to return to between the bottom plate 11 and the outer support plate 12. At this time, the tank workpiece 40 is firmly fixed by the clamping cylinder 23 (see...). Figure 3 and Figure 5 This allows for unimpeded welding of the outer circumferential seam 41 on the inner wall surface of the tank workpiece 40.

[0031] Therefore, the pneumatic clamp in the above embodiment enables efficient switching between fixing the inner wall surface and fixing the outer wall surface of the tank workpiece 40. When welding the outer circumferential seam 41 of the tank workpiece 40, the inner wall surface is fixed; when welding the inner circumferential seam 42 of the tank workpiece 40, the outer wall surface is fixed. This reduces manpower consumption, improves production efficiency, and makes the production process safer.

[0032] See Figure 7 As shown, specifically, the annular movable plate 21 is provided with a first sliding bearing, which is sleeved on the round rod 14. The sliding cooperation between the first sliding bearing and the round rod 14 can better improve the strength of the outer ring fixed part 20 and provide a guiding effect for the movement of the annular movable plate 21.

[0033] The number of first sliding bearings is multiple, and the multiple first sliding bearings are evenly distributed along the circumference of the annular movable plate 21.

[0034] See Figure 9 As shown, specifically, the inner ring fixing part 30 also includes an inner movable plate 33, and the piston rod of the second lifting cylinder 31 is fixedly connected to the inner end face of the inner movable plate 33. The main frame part 10 also includes an intermediate support plate 13, which is located between the bottom plate 11 and the outer support plate 12. The intermediate support plate 13 is connected to the bottom plate 11 through multiple round rods 14. A second sliding bearing 34 is provided on the intermediate support plate 13, and the second sliding bearing 34 is sleeved on the slide rod 35. One end of the slide rod 35 is fixedly connected to the inner end face of the inner movable plate 33. The sliding cooperation between the second sliding bearing 34 and the slide rod 35 can better improve the strength of the inner ring fixing part 30 and provide a guiding effect for the movement of the inner movable plate 33.

[0035] There are multiple second sliding bearings 34, which are evenly distributed along the circumference of the inner movable plate 33.

[0036] In the description of the embodiments of this application, it should be understood that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection or an indirect connection through an intermediate medium, or the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances. The terms "upper," "lower," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In the description of this application, "multiple" means two or more, unless otherwise precisely specified.

[0037] The terms "first," "second," "third," "fourth," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented, for example, in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0038] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A tank welding workstation, characterized in that, It includes a welding positioner, a welding robot, a welding machine, and a pneumatic clamp, wherein the pneumatic clamp is mounted on the welding positioner, and the welding robot and the welding machine are mounted on one side of the welding positioner; The pneumatic clamp includes a main frame, an outer ring fixing part, and an inner ring fixing part; The main frame includes a base plate and an outer support plate spaced apart from each other. The base plate is fixedly connected to the rotary disk of the welding positioner. The outer support plate is connected to the base plate by multiple round rods. The outer support plate has a passage in the middle. The outer ring fixing part includes an annular movable plate, a first lifting cylinder, a clamping cylinder, and a clamping block. The bottom of the first lifting cylinder is fixed to the base plate, and the piston rod of the first lifting cylinder is connected to the annular movable plate. The annular movable plate is located between the base plate and the outer support plate. Multiple clamping cylinders are installed on the annular movable plate, and the multiple clamping cylinders are evenly distributed along the circumference of the annular movable plate. Each clamping cylinder has a clamping block connected to its piston rod. The first lifting cylinder can drive the annular movable plate closer to or further away from the outer support plate, so that the clamping block extends from the side of the outer edge of the outer support plate to the outer end face of the outer support plate or retracts the clamping block between the base plate and the outer support plate. The inner ring fixing part includes a second lifting cylinder and a pneumatic finger. The bottom of the second lifting cylinder is fixed on the base plate. The pneumatic finger is connected to the piston rod of the second lifting cylinder. The second lifting cylinder can drive the pneumatic finger through the inner ring of the annular movable plate and the through port.

2. The tank welding workstation according to claim 1, characterized in that, The annular movable plate is provided with a first sliding bearing, which is sleeved on the round rod.

3. The tank welding workstation according to claim 1, characterized in that, The inner ring fixing part also includes an inner movable plate, and the piston rod of the second lifting cylinder is fixedly connected to the inner end face of the inner movable plate.

4. The tank welding workstation according to claim 3, characterized in that, The main frame also includes an intermediate support plate, which is located between the bottom plate and the outer support plate, and is connected to the bottom plate by a plurality of round rods. The intermediate support plate is provided with a second sliding bearing, which is sleeved on the slide rod. One end of the slide rod is fixedly connected to the inner end face of the inner movable plate.

5. The tank welding workstation according to claim 4, characterized in that, There are multiple second sliding bearings, which are evenly distributed along the circumference of the inner movable plate.

6. The tank welding workstation according to claim 1, characterized in that, The side end face of the clamping block and the side end face of the gripper of the pneumatic finger both have arc-shaped clamping surfaces.

7. The tank welding workstation according to any one of claims 1-6, characterized in that, The outer edge of the outer support plate has a notch for the clamping block to pass through.

8. The tank welding workstation according to claim 7, characterized in that, There are multiple first sliding bearings, which are evenly distributed along the circumference of the annular movable plate.

9. The tank welding workstation according to claim 7, characterized in that, The pneumatic fingers include three-claw pneumatic fingers.

10. The tank welding workstation according to claim 7, characterized in that, The clamping cylinder includes a three-axis cylinder.

Images