Automatic welding manipulator of rotary discharger

Abstract

The invention relates to the technical field of electric arc welding, and provides a rotary discharger automatic welding manipulator which comprises a base, a mechanical arm and a supporting rotary seat are mounted at the top of the base, an electric arc welding head is mounted at the top end of the mechanical arm, and the rotary discharger automatic welding manipulator further comprises a discharger body clamped at the top of the supporting rotary seat. A flange is arranged at the top of the discharger body; and the support is installed on the rear side of the top of the base, a telescopic rod is installed on the top of the support, a fixing block is fixedly installed at the telescopic end of the telescopic rod, a rotating disc is rotatably installed in the fixing block, and a pressing plate is fixedly installed at the bottom of the rotating disc. According to the device, the second gear installed on the outer side of the connecting frame is meshed with the first gear, it is guaranteed that the multiple sets of pressing wheels are kept synchronous when rotating around the corresponding supporting columns, the distances between the positions of the abutting points of the three sets of pressing wheels and the inner wall of the flange and the axis of the motor can be kept the same, and through the design, accurate positioning can be achieved before the flange is fixed and pressed.

Description

Technical Field

[0001] This application relates to the field of arc welding technology, specifically to an automatic welding manipulator for a rotary unloader. Background Technology

[0002] A rotary unloader is a mechanical device used for conveying and handling powdery and granular materials. After connecting to a silo containing material, it drives a rotating material plate via a built-in motor and reducer, thus achieving the function of rotating and unloading. The connection between the rotary unloader and the silo is a flange. Generally, after the unloader is integrally formed, the inlet flange needs to be welded to its top. Therefore, an automatic welding manipulator is required. The automatic welding manipulator consists of a rotary support base, a fixing mechanism, and an arc welding mechanism. The rotary unloader is installed on top of the rotary support base and locked using pressure plates and bolts. Then, the flange is installed at the corresponding position on the top of the unloader. Before welding, the fixing mechanism presses and secures the flange to ensure its stability during welding. However, this simple pressing and securing has a problem: the fixing mechanism only focuses on applying pressure and neglects the positioning between the flange and the top connection of the unloader. There will be a gap between the flange and the top connection of the unloader to facilitate flange installation, but the resulting annular gap needs to be equal in all places to minimize the internal stress generated after welding. The positioning of the fixing mechanism in the existing technology is not accurate enough. It mainly relies on the fit and contact between the flange and the top of the unloader to roughly determine the position. Therefore, the annular gap after welding is not standard and urgently needs to be solved. Summary of the Invention

[0003] To overcome the above-mentioned defects, embodiments of this application provide an automatic welding manipulator for a rotary unloader, which solves the technical problem of insufficient positioning accuracy in related technologies.

[0004] This invention provides an automatic welding manipulator for a rotary unloader, comprising a base, a robotic arm and a supporting rotary seat respectively mounted on the top of the base, an arc welding head mounted on the top of the robotic arm, and further comprising: The unloader body is clamped on the top of the supporting rotary seat, and a flange is placed on the top of the unloader body; A bracket is installed on the rear side of the top of the base. A telescopic rod is installed on the top of the bracket. A fixing block is fixedly installed at the telescopic end of the telescopic rod. A turntable is rotatably installed inside the fixing block. A pressure plate is fixedly installed at the bottom of the turntable. The motor is located at the center of the bottom of the pressure plate, and a gear is fixedly installed on the output shaft of the motor; The support column is configured in multiple groups and fixedly connected to the bottom of the pressure plate. A connecting frame is movably sleeved on the outer surface of the support column. A gear is fixedly installed inside the connecting frame. An installation frame is fixedly connected to the outer side of the connecting frame. A pressure roller is rotatably installed inside the installation frame. The outer surface of the pressure roller rolls against the inner wall of the flange. This device uses a telescopic rod to drive a fixed block, turntable, pressure plate, and pressure rollers. When the flange is installed on top of the unloader body, the motor mounted on the bottom of the pressure plate rotates, driving gear one and gear two to rotate. This causes multiple sets of gear two to rotate and expand outward synchronously, rolling against the inner wall of the flange. This ensures that the flange moves in a collinear manner with the axes of the motor and the rotating support. Multiple sets of supports fixed to the bottom of the pressure plate provide rotational support for the connecting frame. Gear two mounted on the outside of the connecting frame meshes with gear one, ensuring that the multiple pressure rollers rotate synchronously around their corresponding supports. The distance between the contact points of the three sets of pressure rollers with the inner wall of the flange and the motor axis can be kept the same. This design allows for precise positioning of the flange before it is fixed and pressed.

[0005] Then, this device also utilizes the line contact between the pressure roller and the inner wall of the flange to reduce the sliding friction resistance between the flange and the pressure roller. After the pressure roller completes the center positioning of the flange, the telescopic rod drives the fixed block, turntable, and pressure plate to move downward. At this time, the motor, support column, and pressure roller move downward synchronously. The pressure plate and rubber ring press down on the flange to provide fixing force. During the process of the pressure plate driving the pressure roller to move downward, the pressure roller slides downward relative to the flange until the pressure plate stops moving downward. At this time, friction is generated between the contact surface between the pressure plate and the flange. Friction is generated between the outer surface of the pressure roller and the inner side of the flange. The above friction can ensure that when the support rotary seat drives the unloader body to rotate, it synchronously drives the flange to rotate to complete the welding.

[0006] As a preferred embodiment of the present invention, a rotary groove is provided at the bottom of the fixed block, and a bearing is installed inside the rotary groove. The turntable is rotatably mounted inside the rotary groove through the bearing. like Figure 5 As shown, a bearing is installed inside the rotary groove. The turntable can be rotatably installed inside the bearing and forms a relative rotation with the fixed block. The pressure applied by the telescopic rod to the fixed block and the pressure plate is less than the frictional force of the interference fit between the turntable and the bearing, which can effectively prevent the turntable from falling out of the bearing.

[0007] As a preferred embodiment of the present invention, the bottom of the pressure plate abuts against the top of the flange, the bottom of the pressure plate is provided with a placement groove, a rubber ring is fixedly connected inside the placement groove, and the rubber ring is squeezed and disposed on the top of the flange; The pressure plate is used to directly contact the flange and transmit pressure downwards, providing clamping force for the friction between the contact surfaces of the pressure plate and the flange. The rubber ring increases the static friction between the pressure plate and the flange by being squeezed.

[0008] As a preferred embodiment of the present invention, the bottom of the pressure plate is further provided with a fixing groove, the motor is installed inside the fixing groove, and the first gear meshes with the second gear; like Figure 5 As shown, the motor is installed inside the fixed slot and drives gear one to rotate, which in turn drives gear two to rotate, thereby enabling the connecting frame, mounting frame and pressure roller to rotate around the axis of the support column, thus completing the center positioning operation of the flange.

[0009] As a preferred embodiment of the present invention, the number of the support pillars is three sets, which are distributed equidistantly in a circle on the outside of the motor, and the size of the first gear is smaller than the size of the second gear. like Figure 9 As shown, the support column serves as a connecting frame, mounting frame, and rotating support component for the pressure roller. It ensures that the pressure roller can change its distance from the motor axis during rotation. Furthermore, it uses three sets of synchronously expanding pressure rollers to squeeze and center the flange, ensuring the accuracy of installation and welding between the flange and the unloader body.

[0010] As a preferred embodiment of the present invention, both ends of the support column are provided with limiting rings, and the upper and lower sides of the connecting frame respectively abut against the two sets of limiting rings; like Figure 1 As shown, the limiting ring is responsible for limiting the two sides inside the connecting frame to ensure that the connecting frame will not detach downwards when it is rotated and installed on the outer surface of the support column.

[0011] As a preferred embodiment of the present invention, the axis of motion of the mounting frame and the pressure roller is the axis of the support column. When the axes of each set of the support column and the pressure roller are collinear with the axis of the motor, the pressure roller is furthest from the motor. like Figure 9 As shown, the connecting frame, mounting frame and pressure roller move in a circular motion along the outer surface of the support column under the drive of gear one and gear two. The distance between the pressure roller and the motor is changing in real time. This design enables the pressure roller to expand outward synchronously when it rotates and to squeeze and position the flange.

[0012] As a preferred embodiment of the present invention, the axes of the telescopic rod, the fixing block, the turntable, the pressure plate, the flange, the unloader body and the supporting rotary seat are collinear, and the bottom of the unloader body is fixed by the pressure plate and bolts; like Figure 9As shown, the telescopic rod drives the pressure plate to press the flange downwards. The purpose is to maintain sufficient friction between the pressure plate and the flange so that they can move together. During the pressing process, the flange and the unloader body can also generate sufficient static friction to rotate synchronously. Synchronous welding is performed when the support rotary seat drives the unloader body and the flange to rotate.

[0013] Beneficial effects 1. This device uses a telescopic rod to drive a fixed block, turntable, pressure plate, and pressure rollers. When the flange is installed on top of the unloader body, the motor installed at the bottom of the pressure plate rotates, driving gear one and gear two to rotate. This causes multiple sets of gear two to rotate and expand outward synchronously, rolling against the inner wall of the flange. This ensures that the flange moves in a collinear manner with the axis of the motor and the rotating support. Multiple sets of pillars fixedly connected to the bottom of the pressure plate provide rotational support for the connecting frame. Gear two installed on the outside of the connecting frame meshes with gear one, ensuring that the multiple sets of pressure rollers remain synchronized as they rotate around their corresponding pillars. The distance between the contact points of the three sets of pressure rollers and the inner wall of the flange and the motor axis can be kept the same. This design allows for precise positioning of the flange before it is fixed and pressed.

[0014] 2. Furthermore, this device utilizes the line contact between the pressure roller and the inner wall of the flange to reduce the sliding frictional resistance between the flange and the pressure roller. After the pressure roller completes the center positioning of the flange, the telescopic rod drives the fixed block, turntable, and pressure plate to move downwards. At this time, the motor, support column, and pressure roller move downwards synchronously. The pressure plate and rubber ring press down on the flange to provide fixing force. During the process of the pressure plate driving the pressure roller to move downwards, the pressure roller slides downwards relative to the flange until the pressure plate stops moving downwards. At this time, friction is generated between the contact surface between the pressure plate and the flange, and friction is generated between the outer surface of the pressure roller and the inner side of the flange. The above friction can ensure that when the support rotary seat drives the unloader body to rotate, it synchronously drives the flange to rotate, thus completing the welding. Attached Figure Description

[0015] 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.

[0016] Figure 1 This is a schematic diagram showing the separation of the motor, gear one, support column, limiting ring, connecting frame, mounting frame, pressure roller and gear two of the present invention; Figure 2 This is a front view diagram of the overall structure of the present invention; Figure 3 This is a side view of the overall structure of the present invention; Figure 4 This is a frontal perspective view of the overall structure of the present invention; Figure 5 This is a front sectional view of the overall structure of the present invention; Figure 6 For the present invention Figure 5 Enlarged schematic diagram of the structure at point A; Figure 7 This is a side sectional view of the overall structure of the present invention; Figure 8 For the present invention Figure 7 Enlarged schematic diagram of the structure at point B; Figure 9 This is a top sectional view of the support column of the present invention.

[0017] In the diagram: 1. Base; 2. Robotic arm; 3. Support rotary seat; 4. Unloader body; 5. Flange; 6. Bracket; 7. Telescopic rod; 8. Fixing block; 9. Turntable; 10. Bearing; 11. Pressure plate; 12. Placement slot; 13. Rubber ring; 14. Motor; 15. Gear 1; 16. Support column; 17. Limiting ring; 18. Connecting frame; 19. Mounting frame; 20. Pressure roller; 21. Fixing slot; 22. Gear 2; 23. Rotary slot. Detailed Implementation

[0018] 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, 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.

[0019] In the description of this application, it should be noted 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, an indirect connection through an intermediate medium, or the internal communication between 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.

[0020] In the description of this application, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0021] 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 a sequence other than those illustrated or described herein.

[0022] To make the drawings concise and easy to understand, some drawings only show one of the components with the same structure or function, or only one of them is marked. In this article, "one" not only means "only one", but can also mean "more than one", and "several" includes "two" and "more than two".

[0023] 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 includes a series of steps or units is not necessarily limited to those explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus. It is understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. The embodiments of this application are described in detail below with reference to the accompanying drawings.

[0024] like Figures 1-9 As shown, this invention illustrates an automatic welding manipulator for a rotary unloader, comprising a base 1, with a robotic arm 2 and a supporting rotary seat 3 respectively mounted on the top of the base 1, and an arc welding head mounted on the top of the robotic arm 2. The machine also includes: The unloader body 4 is clamped on the top of the support rotary seat 3, and a flange 5 is placed on the top of the unloader body 4. The bracket 6 is installed on the rear side of the top of the base 1. A telescopic rod 7 is installed on the top of the bracket 6. A fixing block 8 is fixedly installed at the telescopic end of the telescopic rod 7. A turntable 9 is rotatably installed inside the fixing block 8. A pressure plate 11 is fixedly installed at the bottom of the turntable 9. Motor 14 is located at the center of the bottom of pressure plate 11, and gear 15 is fixedly mounted on the output shaft of motor 14; The support column 16 is configured in multiple groups and fixedly connected to the bottom of the pressure plate 11. The outer surface of the support column 16 is movably sleeved with a connecting frame 18. The connecting frame 18 is fixedly installed with a gear 22 inside. The outer side of the connecting frame 18 is fixedly connected with a mounting frame 19. The mounting frame 19 is rotatably installed with a pressure roller 20 inside. The outer surface of the pressure roller 20 rolls against the inner wall of the flange 5. This device uses a telescopic rod 7 to drive a fixed block 8, a turntable 9, a pressure plate 11, and pressure rollers 20. When the flange 5 is installed on top of the unloader body 4, the motor 14 installed at the bottom of the pressure plate 11 rotates, driving gear 15 and gear 22 to rotate. This causes multiple sets of gears 22 to rotate and expand outward synchronously, rolling against the inner wall of the flange 5. This allows the flange 5 to move and become collinear with the axes of the motor 14 and the support rotary seat 3. Multiple sets of support columns 16 fixedly connected to the bottom of the pressure plate 11 provide rotational support for the connecting frame 18. The gears 22 installed on the outside of the connecting frame 18 mesh with gear 15, ensuring that the multiple sets of pressure rollers 20 remain synchronized when rotating around their corresponding support columns 16. The distance between the contact points of the three sets of pressure rollers 20 and the inner wall of the flange 5 and the axis of the motor 14 can remain the same. This design allows the flange 5 to be precisely positioned before being fixed and pressed.

[0025] Then, this device also utilizes the line contact between the pressure roller 20 and the inner wall of the flange 5 to reduce the sliding friction resistance between the flange 5 and the pressure roller 20. After the pressure roller 20 completes the center positioning of the flange 5, the telescopic rod 7 drives the fixed block 8, turntable 9, and pressure plate 11 to move downward. At this time, the motor 14, support column 16, and pressure roller 20 move downward synchronously. The pressure plate 11 and rubber ring 13 press down on the flange 5 to provide fixing force. During the process of the pressure plate 11 driving the pressure roller 20 to move downward, the pressure roller 20 slides downward relative to the flange 5 until the pressure plate 11 stops moving downward. At this time, the contact surface between the pressure plate 11 and the flange 5 generates friction. Friction is generated between the outer surface of the pressure roller 20 and the inner side of the flange 5. The above friction can ensure that when the support rotary seat 3 drives the unloader body 4 to rotate, it synchronously drives the flange 5 to rotate, thus completing the welding.

[0026] As a specific embodiment, a rotary groove 23 is provided at the bottom of the fixed block 8, and a bearing 10 is installed inside the rotary groove 23. The turntable 9 is rotatably installed inside the rotary groove 23 through the bearing 10. like Figure 5 As shown, a bearing 10 is installed inside the rotary groove 23. The turntable 9 is rotatably installed inside the bearing 10 and forms a relative rotation with the fixed block 8. The pressure applied by the telescopic rod 7 to the fixed block 8 and the pressure plate 11 is less than the frictional force of the interference fit between the turntable 9 and the bearing 10, which can effectively prevent the turntable 9 from falling out of the bearing 10.

[0027] As a specific embodiment, the bottom of the pressure plate 11 abuts against the top of the flange 5. The bottom of the pressure plate 11 is provided with a placement groove 12. A rubber ring 13 is fixedly connected inside the placement groove 12. The rubber ring 13 is squeezed and placed on the top of the flange 5. The pressure plate 11 is used to directly abut against the flange 5 and transmit pressure downwards, providing clamping force for the contact surface friction between the pressure plate 11 and the flange 5. The rubber ring 13 increases the static friction between the pressure plate 11 and the flange 5 by being squeezed.

[0028] As a specific embodiment, the bottom of the pressure plate 11 is also provided with a fixing groove 21, the motor 14 is installed inside the fixing groove 21, and the first gear 15 meshes with the second gear 22; like Figure 5 As shown, the motor 14 is installed inside the fixed groove 21 and drives the gear 15 to rotate, which in turn drives the gear 22 to rotate, thereby enabling the connecting frame 18, the mounting frame 19 and the pressure roller 20 to rotate around the axis of the support column 16, thus completing the center positioning operation of the flange 5.

[0029] As a specific embodiment, there are three sets of support pillars 16, which are distributed equidistantly in a circle on the outside of the motor 14, and the size of gear one 15 is smaller than the size of gear two 22; like Figure 9 As shown, the support column 16 serves as a rotating support component for the connecting frame 18, mounting frame 19, and pressure roller 20. It ensures that the pressure roller 20 can change its distance from the axis of the motor 14 during rotation. It also ensures the installation and welding accuracy between the flange 5 and the unloader body 4 by squeezing and centering the flange 5 through three sets of synchronously expanding pressure rollers 20.

[0030] As a specific embodiment, both ends of the support column 16 are provided with limiting rings 17, and the upper and lower sides of the connecting frame 18 respectively abut against the two sets of limiting rings 17. like Figure 1 As shown, the limiting ring 17 is responsible for limiting the two sides inside the connecting frame 18 to ensure that the connecting frame 18 will not detach downwards when it is rotated and installed on the outer surface of the support column 16.

[0031] As a specific embodiment, the axis of motion of the mounting frame 19 and the pressure roller 20 is the axis of the support column 16. When the axes of each set of support columns 16 and pressure roller 20 are collinear with the axis of the motor 14, the pressure roller 20 is furthest from the motor 14. like Figure 9 As shown, the connecting frame 18, mounting frame 19 and pressure roller 20 move in a circular motion along the outer surface of the support column 16 under the drive of gear 15 and gear 22. The distance between the pressure roller 20 and the motor 14 is changing in real time. This design enables the pressure roller 20 to expand outward synchronously when it rotates and to squeeze and position the flange 5.

[0032] As a specific embodiment, the axes of the telescopic rod 7, the fixing block 8, the turntable 9, the pressure plate 11, the flange 5, the unloader body 4 and the supporting rotary seat 3 are collinear, and the bottom of the unloader body 4 is fixed by the pressure plate and bolts; like Figure 9 As shown, the telescopic rod 7 drives the pressure plate 11 to press the flange 5 downward. The purpose is to maintain sufficient friction between the pressure plate 11 and the flange 5 so that they can move together. During the pressing process, the flange 5 and the unloader body 4 can also generate sufficient static friction to rotate synchronously. When the support rotary seat 3 drives the unloader body 4 and the flange 5 to rotate, synchronous welding is performed.

[0033] Working principle: When this device is in operation, firstly, the unloader body 4 is placed on top of the supporting rotary seat 3, and the unloader body 4 is fixed using locking components such as pressure plates and bolts. After positioning, the axis of the unloader body 4 is made collinear with the axis of the supporting rotary seat 3. Then, the flange 5 is placed on top of the unloader body 4, as follows. Figure 9 As shown, start motor 14 and drive gear 15 to rotate clockwise, which in turn drives gear 22, connecting frame 18, mounting frame 19 and pressure roller 20 to rotate counterclockwise around the axis of support column 16, so that pressure roller 20 moves to the position closest to motor 14; Then, the telescopic rod 7 is activated, causing the fixed block 8, turntable 9, and pressure plate 11 to move downwards. This, in turn, causes the motor 14, support column 16, and pressure roller 20 to move downwards into the unloader body 4 and flange 5. When the rubber ring 13 contacts the top of flange 5 and the pressure plate 11 is at the top of flange 5, the telescopic rod 7 is stopped. The motor 14 is then activated, causing gear one 15 to reverse. Gear two 22 then drives the connecting frame 18, mounting frame 19, and pressure roller 20 to rotate clockwise around the axis of support column 16. Figure 9 As shown, the three sets of pressure rollers 20 roll along the inner wall of the flange 5 at the same rotation speed. As the pressure rollers 20 move further and further away from the motor 14, they expand outward synchronously, thereby causing the flange 5 to automatically center itself, complete the positioning, and stop the motor 14. Finally, continue to activate the telescopic rod 7, and fix the block 8, turntable 9 and pressure plate 11 downwards again, so that the bottom of the pressure plate 11 abuts against the top of the flange 5 and generates pressure. The pressure roller 20 and the support column 16 are driven downwards, and the pressure roller 20 slides downwards against the inner wall of the flange 5. After fixing is completed, activate the robotic arm 2 and drive the arc welding head to the welding area between the top outer side of the unloader body 4 and the flange 5. Activate the support rotary seat 3 and drive the unloader body 4, flange 5, pressure plate 11 and turntable 9 to rotate synchronously to complete the welding of the unloader body 4 and flange 5.

[0034] 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 of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be included within the protection scope of this application.

Claims

1. An automatic welding manipulator for a rotary unloader, comprising a base (1), wherein a robotic arm (2) and a supporting rotary seat (3) are respectively mounted on the top of the base (1), and an arc welding head is mounted on the top of the robotic arm (2), characterized in that, Also includes: The unloader body (4) is clamped on the top of the support rotary seat (3), and a flange (5) is placed on the top of the unloader body (4). A bracket (6) is installed on the rear side of the top of the base (1). A telescopic rod (7) is installed on the top of the bracket (6). A fixing block (8) is fixedly installed at the telescopic end of the telescopic rod (7). A turntable (9) is rotatably installed inside the fixing block (8). A pressure plate (11) is fixedly installed at the bottom of the turntable (9). The motor (14) is located at the center of the bottom of the pressure plate (11), and the output shaft of the motor (14) is fixedly mounted with a gear (15). The support column (16) is configured in multiple groups and fixedly connected to the bottom of the pressure plate (11). The outer surface of the support column (16) is movably fitted with a connecting frame (18). The connecting frame (18) is fixedly installed with a gear (22). The outer side of the connecting frame (18) is fixedly connected with a mounting frame (19). The mounting frame (19) is rotatably installed with a pressure roller (20). The outer surface of the pressure roller (20) rolls against the inner wall of the flange (5).

2. The rotary unloader automatic welding manipulator according to claim 1, characterized in that, The bottom of the fixed block (8) is provided with a rotary groove (23), and a bearing (10) is installed inside the rotary groove (23). The turntable (9) is rotatably installed inside the rotary groove (23) through the bearing (10).

3. The rotary unloader automatic welding manipulator according to claim 2, characterized in that, The bottom of the pressure plate (11) abuts against the top of the flange (5). A placement groove (12) is provided at the bottom of the pressure plate (11). A rubber ring (13) is fixedly connected inside the placement groove (12). The rubber ring (13) is squeezed and placed on the top of the flange (5).

4. The rotary unloader automatic welding manipulator according to claim 3, characterized in that, The bottom of the pressure plate (11) is also provided with a fixing groove (21), the motor (14) is installed inside the fixing groove (21), and the first gear (15) meshes with the second gear (22).

5. The rotary unloader automatic welding manipulator according to claim 4, characterized in that, The number of the support pillars (16) is three sets, and they are distributed equidistantly in a circle on the outside of the motor (14). The size of the first gear (15) is smaller than that of the second gear (22).

6. The rotary unloader automatic welding manipulator according to claim 5, characterized in that, Both ends of the support column (16) are provided with limiting rings (17), and the upper and lower sides of the connecting frame (18) respectively abut against the two sets of limiting rings (17).

7. The rotary unloader automatic welding manipulator according to claim 6, characterized in that, The axis of motion of the mounting frame (19) and the pressure roller (20) is the axis of the support column (16). When the axis of each set of the support column (16) and the pressure roller (20) is collinear with the axis of the motor (14), the pressure roller (20) is furthest from the motor (14).

8. The rotary unloader automatic welding manipulator according to claim 7, characterized in that, The axes of the telescopic rod (7), the fixing block (8), the turntable (9), the pressure plate (11), the flange (5), the unloader body (4) and the support rotary seat (3) are collinear, and the bottom of the unloader body (4) is fixed by the pressure plate and bolts.

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