Ground rail cantilever type welding robot workstation

Abstract

The invention discloses a ground rail cantilever type welding robot workstation, and relates to the technical field of welding robots, the ground rail cantilever type welding robot workstation comprises a walking ground rail structure, a welding machine, a stand column, a cross arm and a robot body, the bottom end of the stand column is slidably connected with the surface of the walking ground rail structure, and a first guide rail is arranged on the surface of the front end of the stand column; a first motor assembly is arranged above the front end of the stand column. The second guide rail and the sliding block are used for sliding, so that the sliding plate, the stand column and the robot body can be moved integrally, the supporting piece can prevent the sliding plate from collapsing when the sliding plate deforms, the sliding plate can be driven by the rotating gear to move relative to the rack, and it is ensured that the position, located on the second guide rail, of the sliding plate is accurate; and the slide carriage can be moved to a specific position through meshing of the gear and the impact, the slide carriage can freely move along the second guide rail, the lifting hook is pulled by the welding wire and can float, and therefore the situation that the welding wire is broken due to the fact that the welding wire is subjected to large pulling force is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of welding robots, and specifically to a floor-rail cantilever welding robot workstation. Background Art

[0002] A floor-rail cantilever welding robot is an automated welding device that combines a floor rail and a cantilever robot. The floor rail is installed on the ground, and the robot can move linearly along the rail, thereby expanding the working range. The cantilever has a certain length and range of movement and can perform welding operations at different spatial positions. The robot body can precisely control the position, posture, and movement trajectory of the welding torch. The floor rail drives the robot to move to the designated welding position, and the cantilever moves according to the preset trajectory and posture to accurately deliver the welding torch to the weld. The welding system performs welding operations according to the set parameters, and at the same time, the control system monitors and adjusts the welding process in real time to ensure the stability of the welding quality. In the prior art, the robot of the floor-rail cantilever welding robot can move linearly along the rail. After long-term use, sundries accumulate on the rail, which causes the slide plate to deform, thereby affecting the sliding connection between the slider and the second rail. All these will affect the running accuracy of the robot. Moreover, the floor rail uses gears and racks to mesh for a long time. If the gears and racks are always in mesh, tooth loosening, wear, or damage may occur, resulting in a decrease in transmission accuracy, and the floor rail of the floor-rail cantilever welding robot cannot accurately move to a specific position. Summary of the Invention

[0003] The purpose of the present invention is to provide a floor-rail cantilever welding robot workstation to solve the problems raised in the above background art: the robot of the floor-rail cantilever welding robot can move linearly along the rail. After long-term use, sundries accumulate on the rail, which causes the slide plate to deform, thereby affecting the sliding connection between the slider and the second rail. All these will affect the running accuracy of the robot. Moreover, the floor rail uses gears and racks to mesh for a long time. If the gears and racks are always in mesh, tooth loosening, wear, or damage may occur, resulting in a decrease in transmission accuracy, and the floor rail of the floor-rail cantilever welding robot cannot accurately move to a specific position.

[0004] The purpose of the present invention can be achieved through the following technical solutions: A floor-mounted cantilever welding robot workstation, comprising a walking floor rail structure, a welding machine, a column, a cross arm and a robot body. The bottom end of the column is slidably connected to the surface of the walking floor rail structure. A first guide rail is provided on the front surface of the column, and a first motor assembly is provided above the front end of the column. The cross arm is arranged above the first motor assembly. The position of the cross arm on the column is adjusted by the first motor assembly and the first guide rail. A second motor assembly and a third guide rail are installed at the bottom end of the cross arm. The position of the robot body on the cross arm is adjusted by the second motor assembly and the third guide rail. The walking floor rail structure includes a floor rail base. A support member is provided at the top end of the floor rail base, and second guide rails are installed at both edges of the top end of the support member. Two sets of sliders, two connecting blocks and a sliding plate are arranged between the top ends of the two second guide rails. The cross section of the second guide rail is adapted to the cross section of the slider. The two sets of sliders are respectively slidably connected to the two second guide rails. The two sets of sliders are installed at the bottom ends of the two connecting blocks. The two connecting blocks are respectively located at both edges of the sliding plate. The sliding plate is erected between the two connecting blocks. The slider is used for the sliding plate to slide along the direction of the second guide rail. The bottom end of the column is fixedly installed on the surface of the sliding plate. A speed reducer assembly is provided at a corner of the sliding plate. The speed reducer assembly is used to limit the sliding plate from sliding along the direction of the second guide rail.

[0005] As a preferred technical solution of the present invention, there is a gap between the top end of the support member and the bottom end of the sliding plate. Bellows covers are provided at both ends of the floor rail base, and the two edges of the ends of the connecting block are respectively connected to the two bellows covers. A plurality of tread plates are laid at the top end of the support member and below the sliding plate, and the tread plates are located between the two second guide rails. The tread plates are detachably installed on the top end of the support member.

[0006] As a preferred technical solution of the present invention, the support member includes a plurality of groups of first support plates and second support plates arranged perpendicular to each other, and a support frame provided below the intersection of the first support plate and the second support plate. The support frame is arranged vertically. The shapes of the two connecting blocks are L-shaped.

[0007] As a preferred technical solution of the present invention, the speed reducer assembly includes two fixing blocks. The two fixing blocks are provided at a corner of the sliding plate. Threaded rods are provided inside the two fixing blocks. The threaded rods are threadedly connected to the inside of the fixing blocks. Push blocks are provided at the ends of the two threaded rods. A speed reducer is arranged between the two push blocks. A driving motor is installed at the top end of the speed reducer. The output end of the driving motor is connected to the speed reducer. A gear is provided at the output end of the speed reducer. A rack is provided at the edge of the support member and on one side of the second guide rail. The positions of the two push blocks are used to adjust the position of the gear. The gear and the rack cooperate to limit the sliding plate from sliding along the direction of the second guide rail.

[0008] As a preferred technical solution of the present invention, rotating handles are fixedly installed at the ends of the two threaded rods, and compression springs are arranged outside the two threaded rods and between the fixed block and the push block. The threaded rods are used to adjust the distance between the push block and the fixed block.

[0009] As a preferred technical solution of the present invention, the output end of the speed reducer is floating inside the reserved groove. The push block is used to move along the axis direction of the threaded rod. The speed reducer moves synchronously with the two push blocks. The position of the push block is used to adjust the clearance between the gear and the rack.

[0010] As a preferred technical solution of the present invention, barrel wires are arranged on the surface of the sliding plate. A wire picking rear bracket is installed on the upper side wall of the column. A wire picking front bracket is installed at the middle position of the top end of the cross arm. The wire picking front bracket includes a fixed column. The fixed column is installed at the middle position of the top end of the cross arm. An intermediate column is installed inside the fixed column through bolts. An axle center column is welded to the top end of the intermediate column. A rotating shell is sleeved outside the axle center column. Two bearings are installed between the rotating shell and the axle center column. The rotating shell rotates relative to the axle center column through the bearings. A cross bar is welded to one side of the rotating shell. A hook is installed at the bottom end of the cross bar.

[0011] As a preferred technical solution of the present invention, the inside of the barrel wire is provided with a welding wire for accommodating the robot body. The welding wire inside the barrel wire sequentially penetrates through the wire picking rear bracket and the hook inside the wire picking front bracket.

[0012] As a preferred technical solution of the present invention, the inner ring of the bearing is fixed to the axle center column, the outer ring of the rotating handle is fixed to the rotating shell, and a sealing cover plate is installed at the top end of the axle center column.

[0013] As a preferred technical solution of the present invention, a gun cleaning device is arranged at the bottom end of the column and below the robot body. The position of the gun cleaning device corresponds to the welding gun of the robot body. The inside of the gun cleaning device is used to clean the end of the welding gun of the robot body.

[0014] Compared with the prior art, the beneficial effects of the present invention are: The second guide rail and the slider with a walking track structure are provided and cooperate with each other. The second guide rail and the slider are used for sliding, so that the overall positions of the sliding plate, the column and the robot body can be moved. And the sliding plate moves above the support member. When the sliding plate is deformed, the support member can prevent the sliding plate from collapsing; A speed reducer assembly is provided, and the gear and the rack are meshed. At this time, the rotating gear can be used to drive the sliding plate to move relative to the rack, ensuring that the position of the sliding plate on the second guide rail is relatively accurate. It is also possible to use the gear and the impact engagement to move the sliding plate to a specific position and separate the gear and the rack. At this time, the sliding plate can freely move along the second guide rail; A wire picking front bracket is provided, which can guide the welding wire along the inside of the hook. By utilizing the relative rotation of the central axis column and the rotating shell, the welding wire can be pulled when the robot body is welding. The hook can float under the pulling force of the welding wire, thus preventing the welding wire from breaking due to excessive tensile force. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] For the convenience of those skilled in the art to understand, the present invention will be further described below with reference to the accompanying drawings.

[0016] Figure 1 Schematic diagram of the main structure of a floor track cantilever type welding robot workstation of the present invention; Figure 2 Schematic diagram of the robot body, column and cross arm of a floor track cantilever type welding robot workstation of the present invention; Figure 3 Schematic diagram of the traveling floor track structure of a floor track cantilever type welding robot workstation of the present invention; Figure 4 Schematic diagram of the speed reducer assembly of a floor track cantilever type welding robot workstation of the present invention; Figure 5 Schematic diagram of the gear and rack of a floor track cantilever type welding robot workstation of the present invention; Figure 6 Schematic diagram of the wire picking front bracket of a floor track cantilever type welding robot workstation of the present invention; Figure 7 Schematic diagram of the middle column and cross bar of a floor track cantilever type welding robot workstation of the present invention; Figure 8 For Figure 7 the enlarged schematic diagram at position A of

[0017] In the figure: 1, traveling floor track structure; 2, welding machine; 3, robot body; 4, column; 5, first motor assembly; 6, first guide rail; 7, speed reducer assembly; 8, cross arm; 9, wire picking front bracket; 10, second motor assembly; 11, wire picking rear bracket; 12, barrel wire; 13, gun cleaner; 14, third guide rail; 101, floor track base; 102, support member; 103, second guide rail; 104, slider; 105, connecting block; 106, sliding plate; 107, foot pedal; 701, driving motor; 702, reducer; 703, gear; 704, fixed block; 705, threaded rod; 706, rotating handle; 707, pushing block; 708, compression spring; 709, reserved groove; 710, rack; 901, fixed column; 902, middle column; 903, central axis column; 904, cross bar; 905, hook; 906, bearing; 907, rotating shell; 908, cover plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] The technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0019] Embodiment 1: Please refer to Figure 1 - Figure 3As shown in the figure, a floor-track cantilever welding robot workstation includes a walking floor-track structure 1, a welding machine 2, a column 4, a cross arm 8, and a robot body 3. The bottom end of the column 4 is slidably connected to the surface of the walking floor-track structure 1, and the column 4 can be slid along the surface of the walking floor-track structure 1, so that the column 4 can be located at different positions to weld workpieces. A first guide rail 6 is provided on the front-end surface of the column 4, and a first motor assembly 5 is provided above the front end of the column 4. The cross arm 8 is arranged above the first motor assembly 5. The position of the cross arm 8 on the column 4 is adjusted by the first motor assembly 5 and the first guide rail 6. The first motor assembly 5 and the cross arm 8 are lifted and lowered synchronously. The cross arm 8 is driven by the first motor assembly 5 to lift and lower along the first guide rail 6 of the column 4, so that the position of the robot body 3 on the cross arm 8 can be adjusted. A second motor assembly 10 and a third guide rail 14 are installed at the bottom end of the cross arm 8. The position of the robot body 3 on the cross arm 8 is adjusted by the second motor assembly 10 and the third guide rail 14. The second motor assembly 10 and the robot body 3 move synchronously. The robot body 3 is driven by the second motor assembly 10 to move along the cross arm 8. And a rotating shaft for rotating the robot body 3 is provided between the second motor assembly 10 and the robot body 3. The robot body 3 can rotate around the axis of the rotating shaft. The walking floor-track structure 1 includes a floor-track base 101. The floor-track base 101 is installed in the workshop by anchor bolts. A support member 102 is provided at the top end of the floor-track base 101. The support member 102 is installed inside the floor-track base 101, so that a net-shaped support space is formed inside the floor-track base 101. And second guide rails 103 are installed at both edges of the top end of the support member 102. Two sets of sliders 104, two connecting blocks 105, and a sliding plate 106 are arranged between the top ends of the two second guide rails 103. The second guide rails 103 can be placed on the top end of the net-shaped support member 102, and a tread plate 107 can be placed in the middle of the support member 102. There is no interference between the tread plate 107 and the second guide rails 103. The cross section of the second guide rail 103 is adapted to the cross section of the slider 104. The two sets of sliders 104 are respectively slidably connected to the two second guide rails 103. The two sets of sliders 104 are installed at the bottom ends of the two connecting blocks 105. The sliders 104 slide along the second guide rails 103, so that the sliders 104, the connecting blocks 105, and the sliding plate 106 slide on the second guide rails 103. Thus, the column 4 moves along the second guide rails 103 with the sliding plate 106. The two connecting blocks 105 are respectively located at both edges of the sliding plate 106. The sliding plate 106 is erected between the two connecting blocks 105. The sliders 104 are used for the sliding plate 106 to slide along the direction of the second guide rails 103, and the tread plate 107 is adjusted according to the moving range of the sliding plate 106. The bottom end of the column 4 is fixedly installed on the surface of the sliding plate 106. The connecting blocks 105 and the sliders 104 are installed at both edges of the sliding plate 106, so that the sliding plate 106 and the column 4 move along the second guide rails 103.The second guide rail 103 allows the slide 106 to move more smoothly. A reducer assembly 7 is installed at a corner of the slide 106. The reducer assembly 7 is used to limit the slide 106 from sliding along the second guide rail 103. The second guide rail 103 and the slider 104 slide together to move the slide 106, the column 4, and the robot body 3. The slide 106 moves along the support 102. The support 102 can prevent the slide 106 from collapsing when the slide 106 is deformed.

[0020] See also Figure 3 As shown, there is a gap between the top of the support member 102 and the bottom of the slide 106, and both ends of the ground rail base 101 are provided with accordion covers, and the edges of the two ends of the connecting block 105 are connected to the two accordion covers respectively. The accordion covers are located outside the two second guide rails 103, so that the second guide rails 103 can be protected by the accordion covers to reduce the entry of foreign matter or dust into the second guide rails 103 of the ground rail base 101, ensure the accuracy of the movement of the second guide rails 103, and prevent foreign matter or dust from entering the second guide rails 103 of the ground rail base 101. The top of the support member 102 is located at A number of pedals 107 are laid under the slide 106. The pedals 107 are made of patterned steel and are located between the two second guide rails 103. The pedals 107 cover the top of the support 102 and are located at the edge of the accordion cover. The pedals 107 and the top of the support 102 are detachable and can be laid on both sides of the slide 106. Some space is reserved on both sides of the slide 106 so that the slide 106 can move on the second guide rail 103, and the movement of the slide 106 is restricted by the pedals 107.

[0021] See also Figure 3 As shown, the support member 102 includes several groups of first support plates and second support plates arranged perpendicular to each other, and a support frame arranged below the intersection of the first support plate and the second support plate. The support frame is arranged vertically. Since the accordion cover is located at the second guide rail 103, the accordion cover will not contact the support member 102, and the accordion cover will not affect the movement of the slide 106 along the second guide rail 103. The two connecting blocks 105 are L-shaped. The shape of the connecting block 105 does not affect the cooperation between the second guide rail 103 and the slider 104, and the shape of the connecting block 105 will not contact the top of the support member 102. When the slide 106 is deformed, the support member 102 can prevent the slide 106 from collapsing.

[0022] See also Figure 2 、 Figure 4 and Figure 5As shown, the speed reducer assembly 7 includes two fixed blocks 704. The two fixed blocks 704 are arranged at a corner of the sliding plate 106. Threaded rods 705 are arranged inside both of the two fixed blocks 704. The threaded rods 705 are in threaded connection with the inside of the fixed blocks 704. Thus, rotating the threaded rods 705 can move the threaded rods 705 along their axial directions. Push blocks 707 are arranged at the ends of both of the two threaded rods 705. The ends of the threaded rods 705 are rotatably connected to the push blocks 707. Thus, when the threaded rods 705 rotate, they will not drive the push blocks 707 to rotate. A speed reducer 702 is arranged between the two push blocks 707. A driving motor 701 is installed at the top of the speed reducer 702. The output end of the driving motor 701 is connected to the speed reducer 702. A gear 703 is arranged at the output end of the speed reducer 702. A rack 710 is arranged at the edge of the support member 102 and on one side of the second guide rail 103. The positions of the two push blocks 707 are used to adjust the position of the gear 703. The two push blocks 707 can drive the speed reducer 702 between the treadles 107 to move. The driving motor 701 above the speed reducer 702 and the gear 703 below the speed reducer 702 also move accordingly. The position of the gear 703 has a state where the gear 703 meshes with the rack 710 and a state where the gear 703 is separated from the rack 710. The cooperation between the gear 703 and the rack 710 is used to limit the sliding of the sliding plate 106 along the direction of the second guide rail 103. When the gear 703 and the rack 710 are in the meshing state, the teeth can be used to limit the movement of the sliding plate 106. When the gear 703 and the rack 710 are in the separated state, the sliding plate 106 can be freely moved. When the gear 703 and the rack 710 are meshed, at this time, the rotating gear 703 can drive the sliding plate 106 to move relative to the rack 710, ensuring that the position of the sliding plate 106 on the second guide rail 103 is relatively accurate. Also, the sliding plate 106 can be moved to a specific position by using the meshing of the gear 703 and the impact. When the gear 703 and the rack 710 are separated, at this time, the sliding plate 106 can freely move along the second guide rail 103.

[0023] Please refer to Figure 4As shown, rotating handles 706 are fixedly installed at the ends of the two threaded rods 705. The rotating handles 706 can rotate the threaded rods 705, thereby adjusting the position of the threaded rods 705 inside the fixed blocks 704. A retaining ring is provided at the end of the threaded rod 705 to prevent the push block 707 from detaching. Compression springs 708 are compressed between the outside of the two threaded rods 705 and between the fixed blocks 704 and the push blocks 707. The threaded rods 705 are used to adjust the distance between the push blocks 707 and the fixed blocks 704. When the gear 703 and the rack 710 are separated, the compression spring 708 is in the limit state of compression. The gap between the gear 703 and the rack 710 is adapted to the tooth height of the gear 703. Thus, the separation of the gear 703 and the rack 710 does not affect the movement of the sliding plate 106 along the second guide rail 103. Rotate the threaded rod 705 to make the push block 707 approach the rack 710. Under the action of the compression spring 708, the push block 707 is pushed, and at this time, the gear 703 can be meshed with the rack 710.

[0024] Please refer to Figure 4 As shown, the output end of the speed reducer 702 floats inside the reserved groove 709. The push block 707 is used to move along the axial direction of the threaded rod 705. The speed reducer 702 moves synchronously with the two push blocks 707. The position of the push block 707 is used to adjust the gap between the gear 703 and the rack 710. Since the elastic coefficient of the compression spring 708 is large enough and the tooth height and the gap between the gear 703 and the rack 710 are adapted, even if the compression spring 708 has a slight float, it will not affect the meshing of the gear 703 and the rack 710. Thus, it is ensured that the gear 703 and the rack 710 are fully meshed and does not affect the position of the sliding plate 106 on the second guide rail 103.

[0025] Please refer to Figure 1 、 Figure 6 - Figure 8As shown, a barrel wire 12 is provided on the surface of the carriage 106. The welding wire in the barrel wire 12 can be drawn out from the barrel wire 12. A wire picking rear bracket 11 is installed on the upper side wall of the column 4, and a wire picking front bracket 9 is installed at the middle position of the top end of the cross arm 8. The welding wire passes through the ends of the wire picking rear bracket 11 and the wire picking front bracket 9. Inside the barrel wire 12, there is welding wire for the welding of the robot body 3. The welding wire inside the barrel wire 12 sequentially passes through the inside of the hook 905 of the wire picking rear bracket 11 and the wire picking front bracket 9. Thus, the welding wire moves along the wire picking rear bracket 11 and the wire picking front bracket 9. The wire picking front bracket 9 includes a fixed column 901. The fixed column 901 is installed at the middle position of the top end of the cross arm 8. Inside the fixed column 901, an intermediate column 902 is installed by bolts, and the position of the intermediate column 902 can be lifted and lowered. The top end of the intermediate column 902 is welded with an axle center column 903. The axle center column 903 can be fixed at the end of the intermediate column 902. An outer rotating shell 907 is sleeved outside the axle center column 903. Two bearings 906 are installed between the rotating shell 907 and the axle center column 903. The rotating shell 907 rotates relative to the axle center column 903 through the bearings 906. Thus, the axle center column 903 and the rotating shell 907 can be rotated. A cross bar 904 is welded on one side of the rotating shell 907. A hook 905 is installed at the bottom end of the end of the cross bar 904. The welding wire passes through the inside of the hook 905 and is connected to the robot body 3. Thus, when welding, the robot body 3 can weld the welded part and the welding rod. Under the pulling of the welding wire, the cross bar 904 can be rotated around the axis of the rotating shell 907. When the robot body 3 works, the cross bar 904 cooperates with the robot body 3 to work, and the welding wire can be fed along the inside of the hook 905. By using the relative rotation of the axle center column 903 and the rotating shell 907, when the robot body 3 welds, the welding wire can be pulled. The hook 905 can float under the pulling of the welding wire, thus avoiding the welding wire from breaking due to excessive tensile force.

[0026] Please refer to Figure 7 - Figure 8 As shown, the inner ring of the bearing 906 is fixed to the axle center column 903, and the outer ring of the rotating handle 706 is fixed to the rotating shell 907. A sealing cover plate 908 is installed at the top end of the axle center column 903. The bearing 906 is sleeved outside the axle center column 903 and installed inside the rotating shell 907. Thus, it is ensured that the rotating shell 907 rotates relative to the axle center column 903, and the top end of the axle center column 903 is fixed by using the sealing cover plate 908. Thus, the rotation of the rotating shell 907 will not be interfered by the axle center column 903 and the sealing cover plate 908.

[0027] Please refer to Figure 1As shown in the figure, a gun cleaner 13 is provided at the bottom end of the column 4 and below the robot body 3. The position of the gun cleaner 13 corresponds to the welding gun of the robot body 3. The inside of the gun cleaner 13 is used to clean the end of the welding gun of the robot body 3. The robot body 3 is lifted and lowered along the column 4, and the position of the welding gun of the robot body 3 is adjusted so that the welding gun of the robot body 3 is aligned directly above the position of the gun cleaner 13. Thus, the welding gun of the robot body 3 is lifted and inserted into the gun cleaner 13, and the gun cleaner 13 is used to clean the welding gun of the robot body 3. The cleaning methods include, but are not limited to, cleaning the welding gun by knocking, cleaning the welding gun with compressed air, and cleaning the welding gun with a brush.

[0028] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the present invention to only the specific embodiments. Obviously, many modifications and variations can be made according to the content of this specification. These embodiments are selected and specifically described in this specification in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and utilize the present invention well. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. A floor-mounted cantilever welding robot workstation, comprising a walking floor rail structure (1), a welding machine (2), a column (4), a cross arm (8) and a robot body (3). The bottom end of the column (4) is slidably connected to the surface of the walking floor rail structure (1). A first guide rail (6) is provided on the front surface of the column (4), and a first motor assembly (5) is provided above the front end of the column (4). The cross arm (8) is arranged above the first motor assembly (5). The position of the cross arm (8) on the column (4) is adjusted by the first motor assembly (5) and the first guide rail (6). A second motor assembly (10) and a third guide rail (14) are installed at the bottom end of the cross arm (8). The position of the robot body (3) on the cross arm (8) is adjusted by the second motor assembly (10) and the third guide rail (14). It is characterized in that, The described walking ground rail structure (1) includes a ground rail base (101). A support member (10②) is provided at the top of the ground rail base (101), and second guide rails (103) are installed at both edges of the top of the support member (102). Two sets of sliders (104), two connecting blocks (105), and a sliding plate (106) are arranged between the tops of the two second guide rails (103). The cross-section of the second guide rail (103) is adapted to the cross-section of the slider (104). The two sets of sliders (104) are respectively slidably connected to the two second guide rails (103). The two sets of sliders (104) are installed at the bottom ends of the two connecting blocks (105). The two connecting blocks (105) are respectively located at both edges of the sliding plate (106). The sliding plate (106) is erected between the two connecting blocks (105). The slider (104) is used for the sliding plate (106) to slide along the direction of the second guide rail (103). The bottom end of the column (4) is fixedly installed on the surface of the sliding plate (106). A speed reducer assembly (7) is provided at a corner of the sliding plate (106). The speed reducer assembly (7) is used to limit the sliding plate (106) from sliding along the direction of the second guide rail (103).

2. The floor track cantilever type welding robot workstation according to claim 1, characterized in that, There is a gap between the top of the support member (102) and the bottom of the sliding plate (106). Bellows covers are provided at both ends of the ground rail base (101), and the two edges at both ends of the connecting block (105) are respectively connected to the two bellows covers. A number of tread plates (107) are laid on the top of the support member (102) and below the sliding plate (106). The tread plates (107) are located between the two second guide rails (103). The tread plates (107) are detachably installed on the top of the support member (102).

3. The floor track cantilever type welding robot workstation according to claim 2, characterized in that, The support member (102) includes several groups of first support plates and second support plates arranged perpendicular to each other, and a support frame provided below the intersection of the first support plate and the second support plate. The support frame is arranged vertically. The shapes of the two connecting blocks (105) are L-shaped.

4. A floor track cantilever type welding robot workstation according to claim 3, characterized in that, The speed reducer assembly (7) includes two fixing blocks (704). The two fixing blocks (704) are provided at a corner of the sliding plate (106). Threaded rods (705) are provided inside the two fixing blocks (704). The threaded rods (705) are threadedly connected to the inside of the fixing blocks (704). Push blocks (707) are provided at the ends of the two threaded rods (705). A speed reducer (702) is arranged between the two push blocks (707). A drive motor (701) is installed at the top of the speed reducer (702). The output end of the drive motor (701) is connected to the speed reducer (702). A gear (703) is provided at the output end of the speed reducer (702). A rack (710) is provided at the edge of the support member (102) and on one side of the second guide rail (103). The positions of the two push blocks (707) are used to adjust the position of the gear (703). The gear (703) and the rack (710) cooperate to limit the sliding plate (106) from sliding along the direction of the second guide rail (103).

5. The floor track cantilever type welding robot workstation according to claim 4, characterized in that, Rotating handles (706) are fixedly installed at the ends of the two threaded rods (705). Compression springs (708) are arranged between the fixed block (704) and the push block (707) outside the two threaded rods (705). The threaded rods (705) are used to adjust the distance between the push block (707) and the fixed block (704).

6. The floor track cantilever type welding robot workstation according to claim 5, characterized in that, The output end of the speed reducer (702) floats inside the reserved slot (709). The push block (707) is used to move along the axis direction of the threaded rod (705). The speed reducer (702) moves synchronously with the two push blocks (707). The position of the push block (707) is used to adjust the clearance between the gear (703) and the rack (710).

7. The floor-mounted cantilever welding robot workstation according to claim 6, wherein Barrel wires (12) are arranged on the surface of the cross slide (106). A wire picking rear support (11) is installed on the upper side wall of the column (4). A wire picking front support (9) is installed at the middle position of the top end of the cross arm (8). The wire picking front support (9) includes a fixed column (901). The fixed column (901) is installed at the middle position of the top end of the cross arm (8). An intermediate column (902) is installed inside the fixed column (901) through bolts. An axle center column (903) is welded to the top end of the intermediate column (902). A rotating shell (907) is sleeved outside the axle center column (903). Two bearings (906) are installed between the rotating shell (907) and the axle center column (903). The rotating shell (907) rotates relative to the axle center column (903) through the bearings (906). A cross bar (904) is welded to one side of the rotating shell (907). A hook (905) is installed at the bottom end of the end of the cross bar (904).

8. A floor rail cantilever type welding robot workstation according to claim 7, characterized in that, The inside of the barrel wire (12) is provided with welding wires for the robot body (3) to receive. The welding wires inside the barrel wire (12) sequentially pass through the wire picking rear support (11) and the inside of the hook (905) of the wire picking front support (9).

9. The floor track cantilever type welding robot workstation according to claim 8, characterized in that, The inner ring of the bearing (906) is fixed to the axle center column (903). The outer ring of the rotating handle (706) is fixed to the rotating shell (907). A cover plate (908) is installed at the top end of the axle center column (903).

10. A floor track cantilever type welding robot workstation according to any one of claims 1-9, characterized in that, A gun cleaning device (13) is arranged at the bottom end of the column (4) and below the robot body (3). The position of the gun cleaning device (13) corresponds to the welding gun of the robot body (3). The inside of the gun cleaning device (13) is used to clean the end of the welding gun of the robot body (3).

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