Mechanical arm welding device for machining

Abstract

The invention discloses a mechanical arm welding device for machining, and relates to the technical field of mechanical arm welding. The mechanical arm welding device for machining comprises a working table, and a welding mechanical arm is fixedly connected to the top of the working table; the top of the working table is fixedly connected with an electric telescopic rod through a first fixing block, and the inner side of the electric telescopic rod is fixedly connected with clamping equipment. The top of the working table is fixedly connected with the rear side of a first hydraulic block through a first fixing plate, the front side of the first hydraulic block is movably connected with a first pushing block, the interior of the first hydraulic block is communicated with the interior of a second hydraulic block through a first hose, the bottom of the second hydraulic block is movably connected with a second pushing block, and the bottom of the second pushing block is fixedly connected with a rotating block. A rotating plate is hinged to the top of the right side of the clamping device, and the second hydraulic block is movably connected with the friction head through a transmission piece. When the mechanical arm welding device for machining is used, the electric telescopic rod is started, a friction head polishes a weld joint, and the working efficiency of equipment is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of mechanical arm welding, in particular to a mechanical arm welding device for mechanical processing. BACKGROUND

[0002] The mechanical arm is a multi-input multi-output, highly nonlinear, strong coupling complex system. Due to its unique operation flexibility, it has been widely used in industrial assembly, safety explosion-proof and other fields. The mechanical arm is a complex system, and there are uncertainties such as parameter perturbation, external disturbance and unmodeled dynamics. Therefore, the modeling model of the mechanical arm also has uncertainties. For different tasks, the joint space motion trajectory of the mechanical arm needs to be planned, thereby cascading the end pose. The mechanical arm simulates the action of the human hand and can assist or replace human work. Mechanical arms can be divided into many types according to different use scenarios, such as mechanical arms for performing stirring operations, mechanical arms for performing carrying operations, and mechanical arms for performing welding operations, etc. The rotation of each arm joint of the mechanical arm is driven by a cylinder to realize the simulation of the human hand.

[0003] A mechanical arm welding device for mechanical processing is disclosed in Chinese patent CN117564571A granted and announced on February 20, 2024, which includes a processing table, a first rotating base provided on the processing table, an electric lifting column mounted on the first rotating base, the execution end of the electric lifting column is fixedly connected with a cross bar, a connecting column rotatably arranged at the lower side of the end of the cross bar, a rotating drive source is arranged on the cross bar for driving the rotation of the connecting column, a horizontal movement mechanism is arranged on the connecting column, an angle adjusting mechanism is arranged at the execution end of the horizontal movement mechanism, and a welding gun is arranged at the execution end of the angle adjusting mechanism. The angle adjusting mechanism is used to adjust the angle of the welding gun. In the above application file, when the device starts welding, since the upper and lower two circular tubes are only fixed on the side, when the bottom rotating base rotates the bottom circular tube, the upper circular tube is easy to slide between the lower circular tube, thereby causing the mechanical arm to weld. The phenomenon of missing welding may occur, thereby reducing the welding efficiency of the device. SUMMARY

[0004] In view of the deficiencies of the prior art, the present application provides a mechanical arm welding device for mechanical processing, which solves the problems raised in the background art. To achieve the above purpose, the present application is realized by the following technical scheme: a mechanical arm welding device for mechanical processing, comprising: The top of the workbench is movably connected with a welding mechanical arm, the top of the workbench is fixedly connected with an electric telescopic rod through a fixed block one, the inner side of the electric telescopic rod is fixedly connected with a clamping device; the top of the workbench is fixedly connected with the rear side of a hydraulic block one through a fixed plate one, the front side of the hydraulic block one is movably connected with a push block one, the front side of the push block one is fixedly connected with the rear side of the clamping device, a spring one is fixedly connected between the rear side of the clamping device and the fixed plate one, the inside of the hydraulic block one is communicated with the inside of a hydraulic block two through a hose one, the side surface of the hydraulic block two is fixedly connected with the right top of the clamping device, the bottom of the hydraulic block two is movably connected with a push block two, the bottom of the push block two is fixedly connected with a rotating block, the right top of the clamping device is hingedly connected with a rotating plate, the outside of the rotating plate is fixedly connected with the rotating block, and the hydraulic block two is movably connected with a friction head through a transmission piece. The friction head and the rotating plate are arranged, the upper workpiece and the lower workpiece are clamped by the rotation of the rotating plate, the lower workpiece does not slide relative to the upper workpiece when the rotating base drives the lower workpiece to rotate, the upper and lower workpieces rotate simultaneously, the friction head rubs the weld between the two workpieces, the welding slag generated after welding is polished, and thus artificial polishing of the workpiece is avoided, and manpower is saved.

[0005] Preferably, the transmission piece comprises a hose two, a fixed plate two, a hydraulic block three, a rack one, a gear one, a spring two, a rotating shaft one, a gear two and an arc-shaped rack, the side surface of the hydraulic block two is fixedly connected with one end of the hose two, the other end of the hose two is fixedly connected with the rear side of the hydraulic block three, the rear side of the hydraulic block three is fixedly connected with the rotating plate through the fixed plate two, the front side of the hydraulic block three is movably connected with the rack one, the spring two is fixedly connected between the rack one and the hydraulic block three, the inside of the rotating plate is rotationally connected with the gear two through the rotating shaft one, the left side of the rotating shaft one is fixedly connected with the gear one, the gear one is engaged with the rack one, the inside of the rotating plate is movably connected with the arc-shaped rack, the arc-shaped rack is engaged with the gear two, the bottom of the arc-shaped rack is fixedly connected with the friction head, and the bottom of the rotating plate is fixedly connected with a rotating bearing.

[0006] Preferably, the top of the workbench is fixedly connected with a rotating base, the bottom of the welding mechanical arm is fixedly connected with a welding head, the inside of the clamping device is movably connected with a workpiece, the clamping device comprises a movable clamping block and a fixed clamping block, the left top of the workbench is fixedly connected with the fixed clamping block, the inner side of the electric telescopic rod is fixedly connected with the movable clamping block, the inside of the movable clamping block is movably connected with a cleaning assembly, and the inside of the fixed clamping block is movably connected with an automatic unloading assembly.

[0007] Preferably, the length of the arc-shaped rack is one fourth of the diameter of the arc-shaped rack.

[0008] Preferably, the cleaning assembly comprises a fixed plate three, a spherical push block, a hydraulic block four, a hose three, a hydraulic block five, a push block three, a rotating block, a fixed plate four, a rotating shaft two, a roller brush head, the front side of the rotating plate is fixedly connected with the fixed plate three, the top of the movable clamping block is fixedly connected with the hydraulic block four, the top of the hydraulic block four is movably connected with the spherical push block, the bottom of the hydraulic block four is fixedly connected with one end of the hose three, the other end of the hose three is fixedly connected with the top of the hydraulic block five, the bottom of the hydraulic block five is movably connected with the push block three, the top of the hydraulic block five is fixedly connected with the bottom of the movable clamping block, the right side of the push block three is fixedly connected with the rotating block, the bottom of the movable clamping block is fixedly connected with the fixed plate four, the inner side of the fixed plate four is movably connected with the rotating shaft two, the outer side of the rotating shaft two is fixedly connected with the rotating block, and the bottom of the rotating block is rotatably connected with the roller brush head. The cleaning assembly is arranged, so that the welding slag powder adsorbed on the surface of the workpiece which is welded and polished can be swept away by the roller brush head, meanwhile, the weld joint between the two workpieces before welding can also be cleaned, so that the surface of the workpiece is kept clean, and the processing efficiency of the equipment is improved.

[0009] Preferably, the number of the fixed plate four is two, and each fixed plate four is symmetrically distributed about the middle line of the movable clamping block.

[0010] Preferably, the side surface of the roller brush head is tangent to the side surface of the workpiece.

[0011] Preferably, the automatic unloading assembly comprises a hose four, a hydraulic block six, a push block four, a spring three, a C-shaped sliding block and a sliding groove, the rear side of the hydraulic block one is fixedly connected with one end of the hose four, the other end of the hose four is fixedly connected with the bottom of the hydraulic block six, the C-shaped sliding block is slidably connected in the sliding groove on the inner side of the fixed clamping block, the left side of the sliding groove is fixedly connected with the hydraulic block six, the right side of the hydraulic block six is movably connected with the push block four, the right side of the push block four is fixedly connected with the C-shaped sliding block, and the left side of the C-shaped sliding block is fixedly connected with the spring three and the left side of the sliding groove. The automatic unloading assembly is arranged, so that the C-shaped sliding block slides to the left, and the workpiece which is processed is pushed out and falls from the rotating base, thereby saving manpower.

[0012] Preferably, the inside of the hydraulic block one is communicated with the inside of the hydraulic block six through the hose four.

[0013] Preferably, the left side surface of the C-shaped sliding block is parallel to the side surface of the workpiece.

[0014] The mechanical arm welding device for machining has the following beneficial effects: (1) When the mechanical arm welding device for machining starts working, the electric telescopic rod is activated, and in conjunction with push block one, hydraulic block one, hose one, hydraulic block two, push block two, rotating block, hose two, hydraulic block three, rack one, gear one, gear two, rotating shaft one, and arc rack, the rotating plate is rotated to fix the upper workpiece, so that the friction head contacts the side of the workpiece, thereby removing the welding slag generated during the welding process.

[0015] (2) When the rotating plate rotates, the rotating block is coordinated with the spherical push block, hydraulic block four, hose three, hydraulic block five, push block three, and rotating shaft two to make the rotating block rotate, so that the roller brush head is in contact with the side of the workpiece, and the welding slag powder adhering to the surface of the workpiece after grinding is removed.

[0016] (3) When the internal pressure of the hydraulic block decreases, the C-shaped slider is pushed inward by the four hoses, six hydraulic blocks, four push blocks and the slide groove, so that the workpiece that has been processed is pushed out of the rotating base, thereby saving manpower. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall front structure of the present invention; Figure 2 This is a schematic diagram of the overall rear structure of the present invention; Figure 3 This is a schematic diagram of some of the components of the present invention; Figure 4 This is a schematic diagram of another component structure of the present invention; Figure 5 This is a schematic diagram of the cleaning component structure of the present invention; Figure 6 For the present invention Figure 5 Enlarged structural diagram at point A in the middle; Figure 7 This is a schematic diagram of the automatic unloading assembly structure of the present invention; Figure 8 For the present invention Figure 7 Enlarged structural diagram at point B.

[0018] In the picture: 100. Workbench; 200. Welding robotic arm; 300. Electric telescopic rod; 400. Clamping device; 401. Movable clamping block; 402. Fixed clamping block; 500. Rotating base; 600. Welding head; 700. Workpiece; 801. Push block one; 802. Hydraulic block one; 803. Fixing plate one; 804. Spring one; 805. Hose one; 806. Hydraulic block two; 807. Push block two; 808. Rotating block; 809. Rotating plate; 810. Hose two; 811. Fixing plate two; 812. Hydraulic block three; 813. Rack one; 814. Gear one; 815. Spring two; 816. Rotating shaft one; 817. Gear two; 818. Arc-shaped rack; 819. Friction head; 900. Sweeping assembly; 901. Fixing plate three; 902. Spherical pusher block; 903. Hydraulic block four; 904. Hose three; 905. Hydraulic block five; 906. Pusher block three; 907. Rotating block; 908. Fixing plate four; 909. Rotating shaft two; 910. Roller brush head; 1000 Automatic unloading assembly; 1001 Hose 4; 1002 Hydraulic block 6; 1003 Push block 4; 1004 Spring 3; 1005 C-shaped slider; 1006 Slide groove. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0020] Example 1, please refer to Figures 1-4 A robotic arm welding device for machining, comprising: A welding robotic arm 200 is movably connected to the top of a worktable 100. The welding robotic arm 200 allows the welding head 600 to change angle for welding, thereby improving welding quality and efficiency. The top of the worktable 100 is fixedly connected to an electric telescopic rod 300 via a fixing block. A clamping device 400 is fixedly connected to the inner side of the electric telescopic rod 300, aligning and fixing the upper and lower workpieces 700 for smoother subsequent welding. A rotating base 500 is fixedly connected to the top of the worktable 100, allowing the workpiece 700 to rotate during welding, reducing the back-and-forth movement of the welding robotic arm 200 and thus improving welding efficiency while ensuring... To ensure operator safety, a welding head 600 is fixedly connected to the bottom of the welding robotic arm 200, and a workpiece 700 is movably connected inside the clamping device 400. The clamping device 400 includes a movable clamping block 401 and a fixed clamping block 402. A fixed clamping block 402 is fixedly connected to the top left side of the worktable 100, and a movable clamping block 401 is fixedly connected to the inner side of the electric telescopic rod 300. The movable clamping block 401 is set so that the workpiece 700 is released by the movable clamping block 401 after processing, thereby making the subsequent unloading process smoother. A cleaning component 900 is movably connected inside the movable clamping block 401, and an automatic unloading component 1000 is movably connected inside the fixed clamping block 402. A rotating bearing is fixedly connected to the bottom of the rotating plate 809.The top of the worktable 100 is fixedly connected to the rear side of the hydraulic block 802 via a fixing plate 803. A push block 801 is movably connected to the front side of the hydraulic block 802. The front side of the push block 801 is fixedly connected to the rear side of the clamping device 400. A spring 804 is fixedly connected between the rear side of the clamping device 400 and the fixing plate 803, allowing the push block 801 to return to its original position. The interior of the hydraulic block 802 communicates with the interior of the hydraulic block 806 via a hose 805. The side of the hydraulic block 806 is fixedly connected to the top right side of the clamping device 400, and the bottom of the hydraulic block 806 is movable. A push block 807 is connected, and a rotating block 808 is fixedly connected to the bottom of the push block 807. A rotating plate 809 is hinged to the top right side of the clamping device 400. The rotating plate 809 is set to fix the top of the upper workpiece 700. The rotating block 808 is fixedly connected to the outer side of the rotating plate 809. A hydraulic block 806 is movably connected to a friction head 819 through a transmission component. The transmission component includes a hose 810, a fixed plate 811, a hydraulic block 812, a rack 813, a gear 814, a spring 815, a rotating shaft 816, a gear 817, and an arc-shaped rack 818. The side of the hydraulic block 806 is connected to the side of the hose 810. One end is fixedly connected to the other end of the hose 810, which is fixedly connected to the rear side of the hydraulic block 812. The rear side of the hydraulic block 812 is fixedly connected to the rotating plate 809 via the fixing plate 811. The front side of the hydraulic block 812 is movably connected to the rack 813. A spring 815 is fixedly connected between the rack 813 and the hydraulic block 812. The interior of the rotating plate 809 is rotatably connected to the gear 817 via the rotating shaft 816. The left side of the rotating shaft 816 is fixedly connected to the gear 814, which meshes with the rack 813. The interior of the rotating plate 809 is movably connected to the arc-shaped rack 818. The length of the arc-shaped rack 818 is... The radius of curvature is one-quarter of its outer diameter circle. An arc-shaped rack 818 meshes with gear 817. A friction head 819 is fixedly connected to the bottom of the arc-shaped rack 818. The friction head 819 and a rotating plate 809 are configured so that the rotating plate 809 rotates to clamp the upper and lower workpieces 700. This prevents relative sliding between the lower and upper workpieces 700 when the rotating base 500 drives the lower workpiece 700 to rotate, allowing both workpieces 700 to rotate simultaneously. Simultaneously, the friction head 819 rubs against the weld seam between the two workpieces 700, thus removing the weld slag produced after welding. This avoids subsequent manual grinding of the workpieces 700, saving manpower.

[0021] When the equipment begins welding, the electric telescopic rod 300 is activated, causing the movable clamping block 401 to move inward, which in turn moves the push block 801 inward. This increases the internal pressure of the hydraulic block 802, which is then transmitted through the hose 805 to the hydraulic block 806, further increasing the internal pressure. This causes the push block 807 to push downward, rotating the rotating block 808 and the rotating plate 809. This fixes the top of the upper workpiece 700 to the rotating bearing, ensuring that when the lower workpiece 700 is rotated by the rotating base 500, there is no friction between the upper and lower workpieces 700. As the slide proceeds, push block 801 continues to move inward, causing excess pressure inside hydraulic block 806 to be transmitted to hydraulic block 812 through hose 810. This increases the pressure inside hydraulic block 812, causing rack 813 to move outward, gear 814 to rotate, shaft 816 to rotate, gear 817 to rotate, and arc-shaped rack 818 to be pushed downward, bringing friction head 819 into contact with the side of workpiece 700. When welding is complete, friction head 819 grinds the weld seam between the two workpieces 700, removing the weld slag and avoiding subsequent manual grinding of workpiece 700, thus saving manpower.

[0022] Example 2, please refer to Figures 1-6Based on Embodiment 1, the cleaning assembly 900 includes a fixed plate 3 901, a spherical pusher 902, a hydraulic block 4 903, a hose 3 904, a hydraulic block 5 905, a pusher 3 906, a rotating block 907, a fixed plate 4 908, a rotating shaft 2 909, and a roller brush head 910. The fixed plate 3 901 is fixedly connected to the front side of the rotating plate 809, and the hydraulic block 4 903 is fixedly connected to the top of the upper movable clamping block 401. A spherical pusher 902 is movably connected. The bottom of the hydraulic block four 903 is fixedly connected to one end of the hose three 904, and the other end of the hose three 904 is fixedly connected to the top of the hydraulic block five 905. The hose three 904 is provided so that the interior of the hydraulic block five 905 communicates with the interior of the hydraulic block four 903. A pusher three 906 is movably connected to the bottom of the hydraulic block five 905, and the top of the hydraulic block five 905 is fixedly connected to the bottom of the upper movable clamping block 401. A rotating block 907 is fixedly connected to the right side of 06. The rotating block 907 is set so that when the equipment starts unloading, the rotating block 907 does not affect the unloading process of the workpiece 700. A fixed plate 908 is fixedly connected to the bottom of the upper movable clamping block 401. A rotating shaft 909 is movably connected to the inner side of the fixed plate 908. The rotating block 907 is fixedly connected to the outer side of the rotating shaft 909. A roller brush head 910 is rotatably connected to the bottom of the rotating block 907. The side of the roller brush head 910 is tangent to the side of the workpiece 700. There are two fixed plates 908. Each fixed plate 908 is symmetrically distributed about the center line of the movable clamping block 401. A cleaning component 900 is set so that the welding slag powder adsorbed on the surface of the workpiece 700 after welding and during grinding is removed by the roller brush head 910. At the same time, the weld between the two workpieces 700 before welding can be cleaned, thereby ensuring the cleanliness of the surface of the workpiece 700 and improving the processing efficiency of the equipment.

[0023] In use, based on Embodiment 1, when the rotating plate 809 rotates, the fixed plate 3 901 rotates with the rotating plate 809, causing the spherical push block 902 to move downwards, increasing the internal pressure of the hydraulic block 4 903. The internal pressure of the hydraulic block 4 903 is transmitted to the hydraulic block 5 905 through the hose 3 904, increasing the internal pressure of the hydraulic block 5 905, causing the push block 3 906 to push outwards, and causing the rotating block 907 to rotate with the push block 3 906. This causes the roller brush head 910 to come into contact with the side of the workpiece 700, so that the welding slag powder adsorbed on the surface of the workpiece 700 that has been welded and is being ground is swept away by the roller brush head 910. At the same time, the weld seam between the two workpieces 700 before welding can be cleaned, thereby ensuring the cleanliness of the workpiece 700 surface and improving the processing efficiency of the equipment.

[0024] Example 3, please refer to Figures 1-8Based on Embodiments 1 and 2, the automatic unloading assembly 1000 includes a hose 1001, a hydraulic block 1002, a pusher 1003, a spring 1004, a C-shaped slider 1005, and a groove 1006. The rear side of the hydraulic block 1002 is fixedly connected to one end of the hose 1001, and the other end of the hose 1001 is fixedly connected to the bottom of the hydraulic block 1002. The interior of the hydraulic block 1002 communicates with the interior of the hydraulic block 1002 through the hose 1001. The interior of the lower fixed clamping block 402 is slidably connected to the C-shaped slider 1005 through the groove 1006. The groove 1006 is provided so that the C-shaped slider 1005 slides along the groove 1006. The C-shaped slider 1005 moves in six directions. The left side surface of the C-shaped slider 1005 is parallel to the side of the workpiece 700. A hydraulic block six 1002 is fixedly connected to the left side of the slide groove 1006. A push block four 1003 is movably connected to the right side of the hydraulic block six 1002. A C-shaped slider 1005 is fixedly connected to the right side of the push block four 1003. A spring three 1004 is fixedly connected between the left side of the C-shaped slider 1005 and the left side of the slide groove 1006. The spring three 1004 is set so that the C-shaped slider 1005 can automatically reset. An automatic unloading component 1000 is set so that the C-shaped slider 1005 slides to the left, so that the processed workpiece 700 is pushed out and dropped from the rotating base 500, thereby saving manpower.

[0025] In use, based on Embodiment 1 and Embodiment 2, when the internal pressure of hydraulic block 802 decreases, the internal pressure of hydraulic block 802 is transmitted to hydraulic block 6 1002 through hose 4 1001, causing the internal pressure of hydraulic block 6 1002 to decrease, causing push block 4 1003 to move inward, causing C-shaped slider 1005 to move inward along the direction of slide groove 1006, so that the processed workpiece 700 is pushed out of the rotating base 500, thereby enabling the equipment to automatically unload and save manpower.

[0026] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A robotic arm welding device for machining, characterized in that, include: A workbench, the top of which is movably connected to a welding robotic arm, the top of which is fixedly connected to an electric telescopic rod via a fixing block, and a clamping device fixedly connected to the inner side of the electric telescopic rod; The top of the workbench is fixedly connected to the rear side of the hydraulic block 1 via a fixed plate 1. A push block 1 is movably connected to the front side of the hydraulic block 1. The front side of the push block 1 is fixedly connected to the rear side of the clamping device. A spring 1 is fixedly connected between the rear side of the clamping device and the fixed plate 1. The interior of the hydraulic block 1 is connected to the interior of the hydraulic block 2 via a hose 1. The side of the hydraulic block 2 is fixedly connected to the top right side of the clamping device. A push block 2 is movably connected to the bottom of the hydraulic block 2. A rotating block is fixedly connected to the bottom of the push block 2. A rotating plate is hinged to the top right side of the clamping device. A rotating block is fixedly connected to the outer side of the rotating plate. The hydraulic block 2 is movably connected to the friction head via a transmission component.

2. The robotic arm welding device for machining according to claim 1, characterized in that: The transmission components include a second flexible hose, a second fixed plate, a third hydraulic block, a first rack, a first gear, a second spring, a first rotating shaft, a second gear, and an arc-shaped rack. The side of the second hydraulic block is fixedly connected to one end of the second flexible hose, and the other end of the second flexible hose is fixedly connected to the rear side of the third hydraulic block. The rear side of the third hydraulic block is fixedly connected to the rotating plate via the second fixed plate. The first rack is movably connected to the front side of the third hydraulic block, and the second spring is fixedly connected between the first rack and the third hydraulic block. The interior of the rotating plate is rotatably connected to the second gear via the first rotating shaft. The first gear is fixedly connected to the left side of the first rotating shaft, and the first gear meshes with the first rack. An arc-shaped rack is movably connected to the interior of the rotating plate, and the arc-shaped rack meshes with the second gear. A friction head is fixedly connected to the bottom of the arc-shaped rack.

3. The robotic arm welding device for machining according to claim 1, characterized in that: A rotating base is fixedly connected to the top of the worktable, a welding head is fixedly connected to the bottom of the welding robotic arm, a workpiece is movably connected inside the clamping device, the clamping device includes a movable clamping block and a fixed clamping block, a fixed clamping block is fixedly connected to the top left side of the worktable, a movable clamping block is fixedly connected to the inner side of the electric telescopic rod, a cleaning component is movably connected inside the movable clamping block, an automatic unloading component is movably connected inside the fixed clamping block, and a rotating bearing is fixedly connected to the bottom of the rotating plate.

4. The robotic arm welding device for machining according to claim 1, characterized in that: The length of the arc-shaped rack is one-quarter of its outer diameter circle.

5. The robotic arm welding device for machining according to claim 3, characterized in that: The cleaning assembly includes a fixed plate three, a spherical push block, a hydraulic block four, a hose three, a hydraulic block five, a push block three, a rotating block, a fixed plate four, a rotating shaft two, and a roller brush head. The fixed plate three is fixedly connected to the front side of the rotating plate. The top of the upper movable clamping block is fixedly connected to the hydraulic block four. The top of the hydraulic block four is movably connected to the spherical push block. The bottom of the hydraulic block four is fixedly connected to one end of the hose three. The other end of the hose three is fixedly connected to the top of the hydraulic block five. The bottom of the hydraulic block five is movably connected to the push block three. The top of the hydraulic block five is fixedly connected to the bottom of the upper movable clamping block. The right side of the push block three is fixedly connected to the rotating block three. The bottom of the upper movable clamping block is fixedly connected to the fixed plate four. The inner side of the fixed plate four is movably connected to the rotating shaft two. The outer side of the rotating shaft two is fixedly connected to the rotating block. The bottom of the rotating block is rotatably connected to the roller brush head.

6. The robotic arm welding device for machining according to claim 5, characterized in that: The number of the four fixing plates is two, and each of the four fixing plates is symmetrically distributed about the center line of the movable clamping block.

7. The robotic arm welding device for machining according to claim 5, characterized in that: The side of the roller brush head is tangent to the side of the workpiece.

8. The robotic arm welding device for machining according to claim 5, characterized in that: The automatic unloading assembly includes a hose four, a hydraulic block six, a push block four, a spring three, a C-shaped slider, and a slide groove. The rear side of the hydraulic block one is fixedly connected to one end of the hose four, and the other end of the hose four is fixedly connected to the bottom of the hydraulic block six. The C-shaped slider is slidably connected to the interior of the lower fixed clamping block through the slide groove. The hydraulic block six is ​​fixedly connected to the left side of the slide groove, and the push block four is movably connected to the right side of the hydraulic block six. The C-shaped slider is fixedly connected to the right side of the push block four, and the spring three is fixedly connected between the left side of the C-shaped slider and the left side of the slide groove.

9. A robotic arm welding device for machining according to claim 8, characterized in that: The interior of hydraulic block one is connected to the interior of hydraulic block six via hose four.

10. A robotic arm welding device for machining according to claim 8, characterized in that: The left side surface of the C-shaped slider is parallel to the side surface of the workpiece.

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