Welding workbench based on mechanical arm welding

Abstract

The invention discloses a welding workbench based on mechanical arm welding, and relates to the technical field of welding devices. Comprising a base, a welding mechanical arm assembly is installed on the base, a turnover mechanism is installed on the base, the turnover mechanism comprises a supporting frame, and the supporting frame is installed on the base; the overturning frame is rotatably installed in the supporting frame through a shaft, and the inner wall of the supporting frame and the outer wall of the overturning frame are of matched annular cambered surface structures; the turnover driving part is mounted on one side of the supporting frame and used for driving the turnover frame to rotate and turn over; and the clamping assembly is installed on the inner side of the overturning frame and used for fixing a part to be welded. By arranging the turnover mechanism, a to-be-welded part can be fixed through the clamping assembly, welding is conducted through the welding mechanical arm assembly, after top face welding is completed, the structure is driven to turn over based on work of the turnover driving part, so that bottom welding continues, multi-directional machining is achieved, and the machining efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of welding devices, and particularly to a welding workbench based on robotic arm welding. Background Art

[0002] With the development of industrial automation technology, robotic arm welding technology has been increasingly widely used in the manufacturing industry. Due to its disadvantages such as low efficiency and unstable quality, the traditional manual welding method has gradually been replaced by robotic arm welding. However, there are still some problems in the existing robotic arm welding equipment during use, such as fixed welding positions, complex operations, and low efficiency. Therefore, how to provide a highly efficient, flexible, and easy-to-operate robotic arm welding equipment is an issue that needs to be considered.

[0003] After retrieval, the application solution with the Chinese patent application number CN201621399605.3 discloses a welding robot device, including a frame, a grasping device, and a welding mechanism. The grasping device is arranged on the frame. The grasping device includes a lifting platform, a first robotic arm, a second robotic arm, and a grasping arm for grasping workpieces. The first robotic arm is connected to the lifting platform. One end of the second robotic arm is connected to the first robotic arm, and the other end is connected to the grasping arm. The welding mechanism is arranged beside the frame and is used for welding the workpieces grasped by the grasping arm. The lifting platform is used to drive the up-and-down movement of the grasping device. The welding robot device in the above literature has the following deficiencies: the function of multi-directional welding is insufficient and still needs to be improved. Summary of the Invention

[0004] The purpose of the present invention is to solve the drawbacks existing in the prior art, and to propose a welding workbench based on robotic arm welding.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A welding workbench based on robotic arm welding, comprising: a base, on which a welding robotic arm assembly is installed, and a flipping mechanism is installed on the base. The flipping mechanism includes:

[0007] A support frame, which is installed on the base;

[0008] A flipping frame, which is rotatably installed in the support frame through a shaft. The inner wall of the support frame and the outer wall of the flipping frame are in a matching annular arc surface structure;

[0009] A flipping driving part, which is installed on one side of the support frame and is used to drive the flipping frame to rotate and flip;

[0010] A clamping assembly, which is installed inside the flipping frame and is used to fix the parts to be welded.

[0011] As a preferred embodiment of the present invention: The clamping assembly includes:

[0012] A sleeve, which is installed inside the flipping frame;

[0013] A first clamping frame, which is slidably connected to the inner wall of the sleeve;

[0014] A clamping part, which is installed on the side of the first clamping frame away from the flipping frame;

[0015] An annular turntable, an annular groove is provided inside the flipping frame, the annular turntable is rotatably installed in the annular groove of the flipping frame, a plurality of arc-shaped chutes are provided on the annular turntable, and one end of the arc-shaped chute gradually approaches the center of the flipping frame; One side of the first clamping frame is installed with a pulley through a bracket, and the pulley is movably installed in the arc-shaped chute;

[0016] One-way limiting teeth, which are arranged in a circumferential distribution on the inner wall of the circumference of the flipping frame;

[0017] A connecting handle, which is installed on the annular turntable, and an elastic clamping part is installed on the connecting handle, and the elastic clamping part cooperates with the one-way limiting teeth to achieve one-way limiting.

[0018] As a preferred embodiment of the present invention: The elastic clamping part includes:

[0019] A toothed plate, which is adapted to the one-way limiting teeth;

[0020] A sliding column, which is slidably connected to the inner wall of the connecting handle, and the toothed plate and the connecting handle are connected by a spring.

[0021] As a preferred embodiment of the present invention: The clamping part includes:

[0022] A connecting plate, which is fixed to the side of the first clamping frame away from the flipping frame, and scale lines are provided on the connecting plate;

[0023] A second clamping frame, which is movably installed on the outer wall of one end of the connecting plate, and a fixing knob for fixing the second clamping frame is connected by thread to the inner wall of the top of the second clamping frame;

[0024] A clamping plate, which is fixed to the outer wall of the side of the second clamping frame away from the connecting plate.

[0025] As a preferred embodiment of the present invention: An arc-shaped groove is provided inside the support frame, and arc-shaped guiding strips adapted to the arc-shaped groove are provided on both sides of the flipping frame.

[0026] As a preferred embodiment of the present invention: The flipping driving part includes:

[0027] A flipping driving motor, a fixing frame is fixed to the outer wall of one side of the support frame, and the flipping driving motor is installed on the fixing frame;

[0028] The output end of the flipping drive motor is in shaft transmission connection with the flipping frame through a gear transmission assembly.

[0029] As a preferred embodiment of the present invention: a loading and unloading mechanism is installed on the base, and the loading and unloading mechanism includes:

[0030] A lifting assembly, which is installed on the base;

[0031] An annular mounting seat, an installation plate is installed inside the annular mounting seat, an electric telescopic cylinder is installed on the installation plate, and a carrier plate is installed at the output end of the electric telescopic cylinder;

[0032] An annular rotating seat, which is rotatably installed on the top of the annular mounting seat, an annular frame is installed on the top of the annular rotating seat, an annular guide frame is installed on the outer side of the top of the annular frame, the inner diameter of the annular guide frame gradually increases in the vertically upward direction, a connecting column is fixed on the toothed plate, and the connecting column is located on the movement path of the annular guide frame;

[0033] Spring rods, a plurality of spring rods are circumferentially distributed and movably arranged on the top of the annular frame, and the position of the connecting handle is on the movement path of the spring rods;

[0034] A rotation driving part, which is installed on the annular mounting seat and is used to drive the annular rotating seat to rotate.

[0035] As a preferred embodiment of the present invention: a positioning baseline is provided on the top of the carrier plate, uniformly distributed positioning holes are provided on the carrier plate, and positioning columns are detachably installed in the positioning holes.

[0036] As a preferred embodiment of the present invention: the rotation driving part includes:

[0037] A rotation driving motor, which is installed on the annular mounting seat through a bracket;

[0038] A rotation driving gear, the shaft of the rotation driving gear is in transmission connection with the output end of the rotation driving motor, convex teeth are circumferentially distributed on the outer side of the annular frame, and the convex teeth are meshed with the rotation driving gear.

[0039] As a preferred embodiment of the present invention: the lifting assembly includes:

[0040] A lifting control motor, which is installed on the base, the output end of the lifting control motor is in transmission connection with a lifting control screw rod, and the annular mounting seat is threadedly connected to the outer wall of the lifting control screw rod;

[0041] Lifting guide rods, which are installed on the base, and the annular mounting seat is slidably connected to the outer wall of the lifting guide rods.

[0042] The beneficial effects of the present invention are:

[0043] 1. The present invention provides a flipping mechanism, which can fix the parts to be welded through a clamping assembly and perform welding using a welding robot arm assembly. When the top surface welding is completed, the flipping drive unit works to drive the structure to flip so as to continue welding the bottom, thereby achieving multi-directional processing and improving processing efficiency.

[0044] 2. The present invention is provided with a clamping assembly, which can control the rotation of the annular turntable through the connecting handle, thereby making the pulley slide in the arc-shaped slide groove. As one end of the arc-shaped slide groove gradually approaches the center of the flip frame, each first clamping frame is guided by the sleeve and synchronously gathers toward the middle of the flip frame, thereby achieving reliable clamping and fixing.

[0045] 3. The present invention provides an elastic clamping portion, which enables the sliding post to avoid the annular turntable during rotation and tightening, with the cooperation of the tooth plate and the oblique tooth surface of the one-way limit tooth. After the annular turntable moves into place, based on the rebound force of the spring, the tooth plate and the one-way limit tooth maintain the meshing state as much as possible, avoiding the annular turntable from retreating and achieving reliable fixation.

[0046] 4. The present invention is provided with a loading and unloading mechanism. When loading, based on the operation of the lifting assembly, the annular mounting seat can be driven to move upward, so that the spring rod contacts the connecting handle, and ensures that the annular guide frame does not contact the connecting column. During the process, the spring rod in contact with the connecting handle is pressed into the annular frame, the electric telescopic cylinder works to adjust the height of the carrier to a suitable position, and the rotating drive unit works to drive the annular rotating seat to rotate. The spring rods distributed on the side of the connecting handle can drive the connecting handle to rotate synchronously, thereby achieving the purpose of controlling the structure to be clamped.

[0047] 5. When unloading materials, the present invention, based on the operation of the lifting assembly, drives the annular mounting seat to move upward, so that the spring rod contacts the connecting handle, and the annular guide frame contacts the connecting column. The connecting column is squeezed by the annular guide frame to make the sliding column slide, so that the tooth plate is separated from the one-way limiting tooth, and the one-way limiting effect is released, thereby controlling the connecting handle to drive the annular turntable to rotate in the opposite direction, and unclamping the material is released, which is convenient and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] Figure 1 A structural schematic diagram of a welding workbench based on robotic arm welding proposed by the present invention;

[0049] Figure 2 It is a structural schematic diagram of a turning mechanism and a loading and unloading mechanism of a welding workbench based on robotic arm welding proposed by the present invention;

[0050] Figure 3 This is a schematic structural diagram of the disassembled loading and unloading mechanism of a welding workbench based on robotic arm welding proposed by the present invention;

[0051] Figure 4 Another perspective structural schematic diagram of the loading and unloading mechanism splitting of a welding workbench based on robotic arm welding proposed by the present invention;

[0052] Figure 5 Structural schematic diagram of a flipping mechanism of a welding workbench based on robotic arm welding proposed by the present invention;

[0053] Figure 6 Structural schematic diagram of the first clamping frame and the second clamping frame of a welding workbench based on robotic arm welding proposed by the present invention;

[0054] Figure 7 Structural schematic diagram of a toothed plate of a welding workbench based on robotic arm welding proposed by the present invention.

[0055] In the figure: 1 base, 2 rotation drive motor, 3 lifting control screw, 4 welding robotic arm assembly, 5 clamping plate, 6 annular turntable, 7 support frame, 8 spring rod, 9 annular guide frame, 10 convex teeth, 11 annular mounting seat, 12 carrier plate, 13 lifting control motor, 14 lifting guide rod, 15 flipping drive motor, 16 rotation drive gear, 17 positioning hole, 18 positioning baseline, 19 positioning column, 20 annular rotating seat, 21 annular frame, 22 electric telescopic cylinder, 23 mounting plate, 24 fixing frame, 25 gear transmission assembly, 26 arc groove, 27 connecting handle, 28 arc chute, 29 arc guide bar, 30 pulley, 31 sleeve, 32 first clamping frame, 33 connecting plate, 34 scale line, 35 fixing knob, 36 second clamping frame, 37 toothed plate, 38 one-way limiting tooth, 39 spring, 40 sliding column, 41 connecting column, 42 flipping frame. Detailed implementation manners

[0056] The technical solutions of the present invention will be further described in detail below in conjunction with the specific implementation manners.

[0057] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions from beginning to end. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation to the present invention.

[0058] Embodiment 1:

[0059] A welding workbench based on robotic arm welding, as Figure 1-7 shown, includes: a base 1, on which a welding robotic arm assembly 4 is installed, and a flipping mechanism is installed on the base 1. The flipping mechanism includes:

[0060] A support frame 7, which is installed on the base 1;

[0061] The turnover frame 42 is rotatably mounted in the support frame 7 through a shaft. The inner wall of the support frame 7 and the outer wall of the turnover frame 42 are in a matching annular arc surface structure;

[0062] The turnover driving part is mounted on one side of the support frame 7 and is used to drive the turnover frame 42 to rotate and turnover;

[0063] The clamping assembly is mounted inside the turnover frame 42 and is used to fix the parts to be welded;

[0064] By setting the turnover mechanism, the parts to be welded can be fixed by the clamping assembly, and welded by the welding robot arm assembly 4. After the top surface welding is completed, based on the work of the turnover driving part, the structure is driven to turnover, so as to continue welding the bottom, realizing multi-directional processing and improving the processing efficiency.

[0065] For the convenience of clamping and fixing; as Figure 6 shown, the clamping assembly includes:

[0066] The sleeve 31 is mounted inside the turnover frame 42;

[0067] The first clamping frame 32 is slidably connected to the inner wall of the sleeve 31;

[0068] The clamping part is mounted on the side of the first clamping frame 32 away from the turnover frame 42;

[0069] The annular turntable 6 is provided with an annular groove inside the turnover frame 42. The annular turntable 6 is rotatably mounted in the annular groove of the turnover frame 42. A plurality of arc-shaped chutes 28 are provided on the annular turntable 6, and one end of the arc-shaped chute 28 gradually approaches the center of the turnover frame 42; One side of the first clamping frame 32 is provided with a pulley 30 through a bracket, and the pulley 30 is movably mounted in the arc-shaped chute 28;

[0070] The one-way limit teeth 38 are arranged on the circumferential inner wall of the turnover frame 42 in a circumferential distribution;

[0071] The connecting handle 27 is mounted on the annular turntable 6, and an elastic clamping part is mounted on the connecting handle 27. The elastic clamping part cooperates with the one-way limit teeth 38 to achieve one-way limit;

[0072] By setting the clamping assembly, the rotation of the annular turntable 6 can be controlled through the connecting handle 27, and then the pulley 30 slides in the arc-shaped chute 28. Since one end of the arc-shaped chute 28 gradually approaches the center of the turnover frame 42, each first clamping frame 32 is guided by the sleeve 31 and synchronously gathers towards the middle of the turnover frame 42 to achieve reliable clamping and fixing.

[0073] For the convenience of fixing the annular turntable 6; asFigure 7 As shown, the elastic clamping part includes:

[0074] A toothed plate 37, which is adapted to the one-way limiting teeth 38;

[0075] A sliding column 40, which is slidably connected to the inner wall of the connecting handle 27, and the toothed plate 37 and the connecting handle 27 are connected by a spring 39;

[0076] By setting the elastic clamping part, during the process of the annular turntable 6 rotating and tightening, under the cooperation of the inclined tooth surfaces of the toothed plate 37 and the one-way limiting teeth 38, the sliding column 40 slides to achieve avoidance. After the annular turntable 6 moves in place, based on the resilience of the spring 39, the toothed plate 37 and the one-way limiting teeth 38 are kept in a meshing state as much as possible to prevent the annular turntable 6 from retracting and achieve reliable fixation.

[0077] For the convenience of clamping and fixing; as Figure 6 shown, the clamping part includes:

[0078] A connecting plate 33, which is fixed to the side of the first clamping frame 32 away from the flipping frame 42, and a scale line 34 is provided on the connecting plate 33;

[0079] A second clamping frame 36, which is movably installed on the outer wall of one end of the connecting plate 33, and a fixing knob 35 for fixing the second clamping frame 36 is connected to the inner wall of the top of the second clamping frame 36 by a thread;

[0080] A clamping plate 5, which is fixed to the outer wall of the second clamping frame 36 away from the connecting plate 33;

[0081] By setting structures such as the connecting plate 33 and the second clamping frame 36, the relative position of the second clamping frame 36 and the connecting plate 33 can be adjusted according to requirements, so as to adjust the position of each clamping plate 5; to facilitate adapting to different components.

[0082] To improve the structural stability, as Figure 5 shown, an arc-shaped groove 26 is provided inside the support frame 7, and arc-shaped guide bars 29 adapted to the arc-shaped groove 26 are provided on both sides of the flipping frame 42.

[0083] For the convenience of controlling the flipping of the structure; as Figure 5 shown, the flipping driving part includes:

[0084] A flipping driving motor 15, a fixing frame 24 is fixed to the outer wall of one side of the support frame 7, and the flipping driving motor 15 is installed on the fixing frame 24;

[0085] A gear transmission assembly 25, the output end of the flipping driving motor 15 is shaft-connected to the flipping frame 42 through the gear transmission assembly 25.

[0086] In order to facilitate loading and unloading; Figures 2-4 As shown, a loading and unloading mechanism is installed on the base 1, and the loading and unloading mechanism includes:

[0087] A lifting assembly, the lifting assembly is installed on the base 1;

[0088] An annular mounting seat 11, a mounting plate 23 is mounted inside the annular mounting seat 11, an electric telescopic cylinder 22 is mounted on the mounting plate 23, and a carrier plate 12 is mounted on the output end of the electric telescopic cylinder 22;

[0089] The annular rotating seat 20 is rotatably mounted on the top of the annular mounting seat 11. An annular frame 21 is mounted on the top of the annular rotating seat 20. An annular guide frame 9 is mounted on the outer side of the top of the annular frame 21. The inner diameter of the annular guide frame 9 gradually increases in the vertically upward direction. A connecting column 41 is fixed on the tooth plate 37. The connecting column 41 is located on the movement path of the annular guide frame 9;

[0090] Spring rods 8, multiple spring rods 8 are movably arranged on the top of the annular frame 21 in a circumferential distribution, and the position of the connecting handle 27 is located on the movement path of the spring rods 8;

[0091] A rotation driving unit, which is mounted on the annular mounting seat 11 and is used to drive the annular rotating seat 20 to rotate;

[0092] By setting up the loading and unloading mechanism, when loading, the lifting assembly can work to drive the annular mounting seat 11 to move upward, so that the spring rod 8 contacts the connecting handle 27, and ensure that the annular guide frame 9 does not contact the connecting column 41. During the process, the spring rod 8 in contact with the connecting handle 27 is pressed into the annular frame 21, and the electric telescopic cylinder 22 works to adjust the height of the carrier 12 to a suitable position. The rotation drive unit works to drive the annular rotating seat 20 to rotate, and the spring rods 8 distributed on the side of the connecting handle 27 can drive the connecting handle 27 to rotate synchronously, thereby achieving the purpose of controlling the structure to be clamped;

[0093] Among them, when the clamping is in place, the method of controlling the rotation drive part to stop can use existing technologies such as pressure sensors to detect whether the clamping is in place, which will not be described in detail here;

[0094] When unloading, based on the operation of the lifting assembly, the annular mounting seat 11 is driven to move upward, so that the spring rod 8 contacts the connecting handle 27, and the annular guide frame 9 contacts the connecting column 41. The annular guide frame 9 squeezes the connecting column 41 to make the sliding column 40 slide, so that the tooth plate 37 is separated from the one-way limit tooth 38, and the one-way limit effect is released, thereby controlling the connecting handle 27 to drive the annular turntable 6 to rotate in the opposite direction, and unloading is released in the clamping state.

[0095] To facilitate positioning; Figure 3As shown, a positioning baseline 18 is provided at the top of the carrier plate 12. The carrier plate 12 is provided with uniformly distributed positioning holes 17, and positioning posts 19 are detachably installed in the positioning holes 17.

[0096] For facilitating the rotation of the driving structure; as Figure 4 shown, the rotation driving part includes:

[0097] A rotation driving motor 2, which is installed on the annular mounting seat 11 through a bracket;

[0098] A rotation driving gear 16, the shaft of the rotation driving gear 16 is in transmission connection with the output end of the rotation driving motor 2, and convex teeth 10 are arranged on the outer side of the annular frame 21 in a circumferential distribution, and the convex teeth 10 are meshed with the rotation driving gear 16.

[0099] For facilitating the lifting of the control structure; as Figure 2 shown, the lifting assembly includes:

[0100] A lifting control motor 13, which is installed on the base 1, and the output end of the lifting control motor 13 is in transmission connection with a lifting control screw 3, and the annular mounting seat 11 is threadedly connected to the outer wall of the lifting control screw 3;

[0101] Lifting guide rods 14, which are installed on the base 1, and the annular mounting seat 11 is slidably connected up and down to the outer wall of the lifting guide rods 14.

[0102] For the parts not fully disclosed in the present invention, those skilled in the art can ensure the smooth implementation of the solution of the present invention based on common sense, normal thinking logic and the prior art.

[0103] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A welding workbench based on robotic arm welding, comprising a base (1), a welding robotic arm assembly (4) is installed on the base (1), and a flipping mechanism is installed on the base (1), characterized in that, The flipping mechanism comprises: A support frame (7), the support frame (7) is installed on the base (1); A turning frame (42), the turning frame (42) is rotatably installed in the support frame (7) through an axis, and the inner wall of the support frame (7) and the outer wall of the turning frame (42) are in a matching annular arc structure; A turning drive unit, which is mounted on one side of the support frame (7) and is used to drive the turning frame (42) to rotate and turn; A clamping assembly is installed inside the turning frame (42) and is used to fix the parts to be welded.

2. The welding workbench based on robotic arm welding according to claim 1, characterized in that, The clamping assembly comprises: A sleeve (31), the sleeve (31) is installed on the inner side of the turning frame (42); A first clamping frame (32), the first clamping frame (32) is slidably connected to the inner wall of the sleeve (31); A clamping portion, the clamping portion being mounted on a side of the first clamping frame (32) away from the turning frame (42); The annular turntable (6) is provided with an annular groove inside the turning frame (42), the annular turntable (6) is rotatably installed in the annular groove of the turning frame (42), a plurality of arc-shaped slide grooves (28) are provided on the annular turntable (6), one end of the arc-shaped slide groove (28) gradually approaches the center of the turning frame (42); a pulley (30) is installed on one side of the first clamping frame (32) through a bracket, and the pulley (30) is movably installed in the arc-shaped slide groove (28); One-way limiting teeth (38), the one-way limiting teeth (38) are arranged on the inner wall of the circumference of the turning frame (42) in a circumferentially distributed manner; A connecting handle (27) is mounted on the annular rotating disk (6). An elastic clamping portion is mounted on the connecting handle (27). The elastic clamping portion cooperates with the one-way limiting tooth (38) to achieve one-way limiting.

3. A welding workbench based on robotic arm welding according to claim 2, characterized in that, The elastic clamping portion comprises: A tooth plate (37), the tooth plate (37) is matched with the one-way limiting tooth (38); The sliding column (40) is slidably connected to the inner wall of the connecting handle (27), and the tooth plate (37) and the connecting handle (27) are connected via a spring (39).

4. A welding workbench based on robotic arm welding according to claim 3, characterized in that, The clamping portion comprises: A connecting plate (33), the connecting plate (33) being fixed to a side of the first clamping frame (32) away from the flip frame (42), and a scale mark (34) being provided on the connecting plate (33); A second clamping frame (36), the second clamping frame (36) is movably mounted on the outer wall of one end of the connecting plate (33), and a fixing knob (35) for fixing the second clamping frame (36) is threadedly connected to the inner wall of the top of the second clamping frame (36); The clamping plate (5) is fixed to an outer wall of a side of the second clamping frame (36) away from the connecting plate (33).

5. A welding workbench based on robotic arm welding according to claim 4, characterized in that, The inner side of the support frame (7) is provided with an arc-shaped groove (26), and both sides of the flip frame (42) are provided with arc-shaped guide strips (29) matching the arc-shaped groove (26).

6. A welding workbench based on robotic arm welding according to claim 1, characterized in that, The flip driving unit comprises: A turning drive motor (15), a fixing frame (24) is fixed on an outer wall of one side of the support frame (7), and the turning drive motor (15) is installed on the fixing frame (24); The output end of the turning drive motor (15) is connected to the shaft of the turning frame (42) through the gear transmission assembly (25).

7. A welding workbench based on robotic arm welding according to claim 4, wherein, A loading and unloading mechanism is installed on the base (1), and the loading and unloading mechanism comprises: A lifting assembly, the lifting assembly being mounted on the base (1); An annular mounting seat (11), a mounting plate (23) is mounted on the inner side of the annular mounting seat (11), an electric telescopic cylinder (22) is mounted on the mounting plate (23), and a carrier plate (12) is mounted on the output end of the electric telescopic cylinder (22); An annular rotating seat (20), the annular rotating seat (20) is rotatably mounted on the top of the annular mounting seat (11), an annular frame (21) is mounted on the top of the annular rotating seat (20), an annular guide frame (9) is mounted on the outer side of the top of the annular frame (21), the inner diameter of the annular guide frame (9) gradually increases in the vertically upward direction, a connecting column (41) is fixed on the tooth plate (37), and the connecting column (41) is located on the movement path of the annular guide frame (9); A spring rod (8), wherein a plurality of spring rods (8) are movably arranged on the top of the annular frame (21) in a circumferentially distributed manner, and the position of the connecting handle (27) is located on the movement path of the spring rod (8); The rotation driving part is mounted on the annular mounting seat (11) and is used to drive the annular rotating seat (20) to rotate.

8. A welding workbench based on robotic arm welding according to claim 7, characterized in that, A positioning baseline (18) is arranged on the top of the carrier (12), and evenly distributed positioning holes (17) are opened on the carrier (12), and positioning columns (19) are detachably installed in the positioning holes (17).

9. A welding workbench based on robotic arm welding according to claim 7, characterized in that, The rotation driving unit comprises: A rotation drive motor (2), wherein the rotation drive motor (2) is mounted on the annular mounting seat (11) via a bracket; A rotation driving gear (16) is provided, the shaft of which is drivingly connected to the output end of the rotation driving motor (2). The outer side of the annular frame (21) is provided with circumferentially distributed convex teeth (10), which mesh with the rotation driving gear (16).

10. A welding workbench based on robotic arm welding according to claim 7, characterized in that, The lifting assembly comprises: A lifting control motor (13), the lifting control motor (13) is mounted on the base (1), the output end of the lifting control motor (13) is drivingly connected to the lifting control screw (3), and the annular mounting seat (11) is connected to the outer wall of the lifting control screw (3) through a thread; The lifting guide rod (14) is mounted on the base (1), and the annular mounting seat (11) is slidably connected to the outer wall of the lifting guide rod (14) up and down.

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