Discrete automatic welding station

Abstract

The present application relates to the field of welding workstations, in particular to a discrete automatic welding workstation, comprising a mobile rail, a welding jig and a positioner and a welding device, the welding jig and the positioner are laid between the two mobile rails; the welding device is arranged on the two mobile rails respectively, the welding device comprises a walking base, a mobile column, a suspension beam and a welding robot, the walking base is slidably connected to the mobile rail, the mobile column is arranged on the walking base, the suspension beam is arranged on the mobile column, and the welding robot is slidably connected to one side of the suspension beam; the welding robots on the two welding devices are arranged on the two sides of the suspension beam respectively, and a connecting seat is connected between the suspension beams after the two welding devices are aligned; the welding robot slides along the X-axis on one suspension beam, moves over the connecting seat and moves to the other suspension beam. The present application has flexible and variable structure, can be operated alone or connected together through parts to cooperate, and is suitable for welding products of various sizes.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of welding workstations, in particular to a discrete automatic welding workstation. BACKGROUND

[0002] Nowadays, welding robot technology has become increasingly mature, and automatic welding by robots instead of manual operation has become an inevitable trend in the industry. Welding workstations centered on welding robots have a wide range of applications in various industries, among which gantry welding robots and cantilever welding robots are the most common. In non-standard bulk material equipment manufacturing industry, there are large structural parts such as box girder, rotary table, boom, etc., and small structural parts such as trolley frame, balance beam, etc. It can be seen that the workpiece structure and size have the characteristics of diversity.

[0003] Conventional welding workstation structures are fixed and difficult to flexibly deploy welding manipulators, which in turn reduces the flexibility of processing. When facing large-sized large workpieces, gantry welding robots can be used because the cantilever welding robot has a small active welding range, and the welding work range of large workpieces exceeds the maximum effective work range of the cantilever welding robot. When welding small workpieces, cantilever welding robots are suitable, and if gantry welding robots are used, there may be a "big horse pulling a small cart" phenomenon, resulting in waste of equipment capacity, increased energy consumption, and reduced efficiency. SUMMARY

[0004] The present application is to solve the problem of conventional welding workstation structure form fixation and difficulty in flexible deployment of welding according to the structure and size of the workpiece. The discrete automatic welding workstation provides a variable structure form of the welding workstation, which can form a cantilever welding robot or a gantry welding robot. According to the project requirements and the structure and size of the workpiece, the type of robot can be flexibly selected, the welding manipulator can be flexibly deployed, and the welding requirements of different types of workpieces can be met.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the present application is:

[0006] The discrete automatic welding workstation comprises a mobile rail, a welding jig frame, a position changing device and a welding device. A plurality of welding jig frames are arranged between the two mobile rails. The position changing device is arranged between one end of the two mobile rails. The position changing device comprises a position changing machine and a fixed clamp controlled by the position changing machine, which facilitates the control of the fixed clamp to change the posture.

[0007] Two welding equipment are arranged on the two moving rails respectively, and the two welding equipment are arranged oppositely, the welding equipment comprises a walking base, a moving column, a suspension beam and a welding robot, the walking base is slidably connected to the moving rail, so as to drive the whole welding equipment to walk along the moving rail, the moving column is vertically arranged above the walking base, the suspension beam is horizontally arranged above the moving column, and the welding robot is slidably connected to at least one side of the suspension beam, the welding robot is arranged on the suspension beam and can slide in X-axis and Y-axis directions, so as to facilitate horizontal movement and vertical lifting of the welding robot.

[0008] The welding robots on the two welding equipment are arranged on two sides of the suspension beam respectively, so as to provide space for cross movement of the welding robots, and the two welding equipment are detachably connected between the suspension beams after alignment, so as to facilitate connection of the two suspension beams for walking of the welding robots, and the welding robot can slide in the X-axis direction on one suspension beam, move over the connecting seat and reach the other suspension beam.

[0009] Further, the two moving rails are arranged in parallel at intervals, the lengths of the two moving rails are different, the displacement equipment is arranged between one ends of the two moving rails, and the other ends are flush; and a safety fence is arranged outside the moving rail, so as to facilitate safety protection of personnel.

[0010] Further, the plurality of welding jigs are arranged in a linear type at intervals, the connecting plates are arranged between the adjacent two welding jigs, and the welding jig is a steel structure grid frame. The welding jig has a certain structural strength to support the product to be welded.

[0011] Further, the displacement machine is an L-shaped displacement machine, the fixed clamp comprises a clamp base plate, a centering module one and a centering module two, the centering module one and the centering module two are arranged at intervals on the clamp base plate, and the centering module one and the centering module two each comprise a manual bidirectional screw rod module and a clamp controlled by the manual bidirectional screw rod module.

[0012] The clamp on the centering module one is a circular truncated cone, the clamp on the centering module two is a pressing plate, a pressing bolt is threadedly connected to the pressing plate, supporting columns are further arranged between the centering module one and the centering module two, and the number of the supporting columns is four arranged in a rectangular shape.

[0013] Further, the walking base walks along the moving rail through a gear and rack walking mechanism, the moving column and the suspension beam are combined to have an "L" shaped cross section after combination, and the suspension beam and the moving column are arranged in a door shape between the two welding equipment after alignment. It is convenient to expand the moving range of the welding robot.

[0014] Further, the welding robot comprises a robot body, a control cabinet, a welding power source, a welding wire barrel and a wire feeder, the robot body is a six-axis robot with high degree of freedom, the robot body is placed on the suspension beam and slides bidirectionally, and the robot body is provided with a dust removal welding gun;

[0015] The mobile column is provided with a column tray for conveniently bearing relevant parts of the welding robot, the column tray is arranged around the mobile column, the control cabinet, the welding power source and the welding wire barrel are arranged on the column tray, and the wire feeder is arranged on the mobile column.

[0016] Further, the suspension beam is horizontally slidably connected with a transverse seat, the transverse seat walks along the suspension beam through a gear and rack walking mechanism, a lifting lead screw module is vertically arranged on the transverse seat, a lifting column is slidably connected to the lifting lead screw module, and the robot body is arranged below the lifting column, so that the robot body can be conveniently driven to move up and down.

[0017] Further, the gear and rack walking mechanism comprises a driving motor with a gear on an output shaft, a rack and a slide rail and a slide block, the driving motor is arranged on the transverse seat, and a plurality of slide blocks are arranged on the transverse seat;

[0018] The suspension beam and the connecting seat are provided with slide rails on both sides, the number of slide rails on each side is two, and the slide blocks move along the slide rails;

[0019] The suspension beam and the connecting seat are provided with the racks on both sides, the gear on the driving motor is engaged with the racks, and the racks are arranged between the two slide rails arranged in parallel.

[0020] Further, the connecting seat is flange bolted to the suspension beam at both ends, so that the connecting seat can be conveniently disassembled and assembled, the connecting seat is not installed when the welding equipment is operated alone, and the connecting seat needs to be installed when the two welding equipment are operated cooperatively.

[0021] Further, the lubricating mechanism is arranged for lubricating the walking base and the X-axis sliding of the welding robot, the lubricating mechanism comprises an electric lubricating oil pump, a valve block, oil pipes, a support and a lubricating gear, the electric lubricating oil pump is communicated with the valve block, a plurality of oil pipes are communicated with the valve block, and each oil pipe is communicated with a slide block;

[0022] The support is connected with the lubricating gear through a rotary joint, the valve block is also communicated with the lubricating gear through the oil pipes and the rotary joint, the lubricating gear is engaged with the rack, the central hole of the lubricating gear is a blind hole, the lower end of the rotary joint is inserted into the central hole of the lubricating gear, the lubricating gear is uniformly provided with oil outlet holes on the circumferential side, the oil outlet holes are arranged along the radial direction of the lubricating gear, and the oil outlet holes are communicated with the central hole of the lubricating gear inward.

[0023] Through the above technical scheme, the welding robot has the following advantages:

[0024] The welding station of the present application is arranged between two mobile ground rails, and a plurality of welding jigs are arranged between the two mobile ground rails, one or several of which can be used to carry small and large products to be welded. A positioner is also arranged between the two mobile ground rails, which can drive the product to be welded to adjust the position and angle, so that the product to be welded can be welded in a fixed posture on the welding jig or in a variable posture on the positioner.

[0025] A welding device is arranged to move on each mobile ground rail, which can move between the positioner and the plurality of welding jigs, and has a larger service range. The robot body in the welding device moves horizontally and vertically on the suspension beam, and has more degrees of freedom. When the welding device is used alone, the robot body can move on the suspension beam, which is suitable for welding small products. When the connecting seat is installed, the two welding devices can work cooperatively, and the robot body can move between the two suspension beams, which is suitable for welding large products.

[0026] The structure of the welding station of the present application has flexibility, and the two welding robots can work independently. After the connecting seat is installed between the suspension beams, the robot body can move between the two suspension beams, and the two welding robots can work cooperatively. The working range of the robot body is expanded, and the flexibility of the welding station is improved, which is suitable for welding products of different sizes. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 is the overall isometric view of the discrete automatic welding station of the present application.

[0028] Figure 2 is the overall plan view of the discrete automatic welding station of the present application.

[0029] Figure 3 is the schematic view of the welding jig of the discrete automatic welding station of the present application.

[0030] Figure 4 is the schematic view of the arrangement of the welding device and the positioner of the discrete automatic welding station of the present application.

[0031] Figure 5 is the schematic view of the welding device of the discrete automatic welding station of the present application. Figure 4 is the side view of the welding device.

[0032] Figure 6 is the schematic view of the positioner of the discrete automatic welding station of the present application.

[0033] Figure 7is the fixed clamp of the discrete automatic welding work station of the present invention.

[0034] Figure 8 is the fixed clamp of the discrete automatic welding work station of the present invention. Figure 7 is the enlarged view of A in the middle.

[0035] Figure 9 is the fixed clamp of the discrete automatic welding work station of the present invention.

[0036] Figure 10 is the welding equipment arrangement of the discrete automatic welding work station of the present invention.

[0037] Figure 11 is the welding equipment of the discrete automatic welding work station of the present invention.

[0038] Figure 12 is the welding equipment of the discrete automatic welding work station of the present invention.

[0039] Figure 13 is the suspension beam and lifting column installation of the discrete automatic welding work station of the present invention.

[0040] Figure 14 is the suspension beam and lifting column installation of the discrete automatic welding work station of the present invention.

[0041] Figure 15 is the suspension beam and lifting column installation of the discrete automatic welding work station of the present invention.

[0042] Figure 16 is the connection seat of the discrete automatic welding work station of the present invention.

[0043] Figure 17 is the lubricating mechanism of the discrete automatic welding work station of the present invention.

[0044] Figure 18 is the lubricating mechanism of the discrete automatic welding work station of the present invention. Figure 17 is the enlarged view of B in the middle.

[0045] The attached diagram is labeled as follows: 1. Moving ground rail; 2. Welding jig; 3. Positioning equipment; 31. Positioner; 32. Fixture; 4. Welding equipment; 5. Connecting plate; 6. Fixture base plate; 7. Centering module one; 8. Centering module two; 9. Walking base; 10. Moving column; 11. Suspension beam; 12. Welding robot; 121. Robot body; 122. Control cabinet; 123. Welding power supply; 124. Welding wire drum; 125. Wire feeder; 13. Column tray; 1 4. Horizontal seat, 15. Lifting screw module, 16. Lifting column, 17. Connecting seat, 18. Gear, 19. Drive motor, 20. Rack, 21. Slide rail, 22. Slider, 231. Electric lubricating oil pump, 232. Valve block, 233. Oil pipe, 234. Bracket, 235. Lubricating gear, 236. Oil outlet, 24. Folding cylinder, 25. Pressure plate, 26. Support column, 27. Pressure bolt, 28. Welding fume extractor, 29. Dust-removing welding torch, 30. Safety fence. Detailed Implementation

[0046] The specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings:

[0047] like Figures 1-18 As shown, the discrete automatic welding workstation includes a moving ground rail 1, a welding jig 2, a positioning device 3, and a welding device 4. This workstation is suitable for the non-standard bulk material handling equipment manufacturing industry, covering welding operations for large structural components such as box girders, turntables, and booms, as well as medium and small-sized products such as trolley frames and balance beams. The workstation configuration can be flexibly changed according to product type to meet the welding needs of various products.

[0048] Mobile rails 1 are laid on the ground, providing a path for the corresponding equipment. There are two mobile rails 1, arranged parallel to each other with a gap between them. The two rails 1 are of different lengths, one longer than the other. The other ends of the two mobile rails 1 are flush. A safety fence 30 is installed outside the mobile rails 1 for the safety protection of the entire workstation. The safety fence 30 is composed of several steel structure fences assembled together, thus enclosing the two mobile rails 1. At least one set of laser-guided electronic fences is installed within the safety fence 30.

[0049] Multiple welding jigs 2 are laid between two moving ground rails 1. There are nine welding jigs 2 in total, arranged in a straight line with intervals between them. A connecting plate 5 is set between two adjacent welding jigs 2. The welding jigs 2 are steel structure grid frames with sufficient strength to support the products to be welded. One or more welding jigs 2 can be used to support the products, which can be large structural components such as box girders, turntables, and booms.

[0050] The variable position device 3 is arranged between one end of the two movable ground rails 1, and is located at the end where the two movable ground rails 1 are not flush. The variable position device 3 comprises a variable position machine 31 and a fixed clamp 32 controlled by the variable position machine 31. The variable position machine 31 is an L-shaped variable position machine 31, and the fixed clamp 32 is used to clamp small products to be welded, such as the balance beam in the walking mechanism of the ship unloader. The variable position machine 31 can drive the fixed clamp 32 to rotate, adjust the position and angle of the fixed clamp 32, and thus change the posture of the product.

[0051] In this embodiment, the fixed clamp 32 comprises a clamp base plate 6, a centering module one 7 and a centering module two 8. The centering module one 7 and the centering module two 8 are arranged on the clamp base plate 6 in a spaced manner, and a support column 26 is further arranged between the centering module one 7 and the centering module two 8. The number of the support column 26 is four arranged in a rectangular shape. The four support columns 26 are used to support the product to be welded together, and then the centering module one 7 and the centering module two 8 are used to clamp the product to be welded at the same time, so as to firmly fix the product on the fixed clamp 32.

[0052] Here, the centering module one 7 and the centering module two 8 each comprise a manual bidirectional screw rod module and a clamp controlled by the manual bidirectional screw rod module. The manual bidirectional screw rod module can control the operation of the clamp. The manual bidirectional screw rod module adopts a positive and negative bidirectional trapezoidal screw rod. The threads at both ends of the screw rod are opposite in rotation direction, and the trapezoidal screw rod has a self-locking function. The two ends of the positive and negative bidirectional trapezoidal screw rod are in the form of a quadrangular prism, which facilitates the use of a wrench to rotate the positive and negative bidirectional trapezoidal screw rod.

[0053] The two ends of the positive and negative bidirectional trapezoidal screw rod are each engaged with a nut seat, and the clamp is arranged on the nut seat. The clamps at the two ends move linearly along the manual bidirectional screw rod module. The rotation of the positive and negative bidirectional trapezoidal screw rod adjusts the distance between the clamps at the two ends, and the clamps at the two ends are used to clamp the product to be welded. Specifically, the clamp on the centering module one 7 is a circular table cylinder 24, which can match the circular hole of the balance beam and clamp the circular hole of the balance beam. The clamp on the centering module two 8 is a pressing plate 25 in the form of an inverted “L” plate body. A pressing bolt 27 is threadedly connected to the upper side of the pressing plate 25. The pressing plate 25 can clamp the outer edge of the balance beam, and the pressing bolt 27 is used to press and fix the product, so as to prevent the balance beam from falling off.

[0054] The two movable ground rails 1 are respectively provided with a welding device 4, so that the entire workstation has two welding devices 4. The two welding devices 4 are arranged opposite to each other, and can form a door-shaped frame after being aligned. The welding device 4 is used to weld the product to be welded on the variable position device 3 and the welding jig 2. The variable position device 3 can be matched with one welding device 4 for welding, and the welding jig 2 can be matched with one or two welding devices 4 for welding.

[0055] The welding equipment 4 comprises a walking base 9, a moving column 10, a suspension beam 11 and a welding robot 12. The walking base 9 is slidably connected to the moving rail 1, so as to expand the moving range of the welding equipment 4. Here, the walking base 9 moves along the moving rail 1 through a gear and rack walking mechanism, which is a prior art and will not be described here.

[0056] The moving column 10 is vertically arranged above the walking base 9, and the suspension beam 11 is horizontally arranged above the moving column 10. The moving column 10 and the suspension beam 11 are combined in an "L" shape. The suspension beam 11 is slidably connected to at least one side of the welding robot 12. Here, the welding robot 12 is arranged on only one side of the suspension beam 11. The welding robots 12 on the two welding equipment 4 are arranged on the two sides of the suspension beam 11, respectively. That is, the welding robot 12 on one welding equipment 4 is arranged on one side of the suspension beam 11 thereof, and the welding robot 12 on the other welding equipment 4 is arranged on the other side of the suspension beam 11 thereof. The welding robots 12 are reserved with a space for movement between the suspension beams 11 of the two welding equipment 4, so as to avoid interference.

[0057] The welding robot 12 is slidably arranged on the suspension beam 11 along the X-axis and Y-axis directions, so that the welding robot 12 can slide horizontally and vertically. The welding robot 12 comprises a robot body 121, a control cabinet 122, a welding power supply 123, a welding wire barrel 124 and a wire feeder 125, and the robot body 121 is a six-axis robot. The robot body 121 is slidably arranged on the suspension beam 11, and a dust removal welding torch 29 is arranged on the robot body 121.

[0058] Among the welding robot 12, only the robot body 121 can move bidirectionally, and the other components can only slide along the moving rail 1. In order to bear the other components of the welding robot 12, a column tray 13 is arranged on the moving column 10, and the column tray 13 is arranged around the moving column 10. The control cabinet 122, the welding power supply 123 and the welding wire barrel 124 are arranged on the column tray 13, and the wire feeder 125 is arranged on the moving column 10. A welding fume dust collector 28 is also arranged on the column tray 13. The welding fume dust collector 28 is in communication with the dust removal welding torch 29 through a dust removal hose. The welding fume dust collector 28 is used to suck the welding fume and waste gas generated during the welding of the dust removal welding torch 29 into the equipment through the fan suction force, and then discharge the purified gas. The entire welding robot 12 can move along the moving rail 1, and serve the variable position equipment 3 and the welding bed 2.

[0059] In order to realize the bidirectional movement of the robot body 121, a transverse seat 14 is horizontally slidably connected on the suspension beam 11, and the transverse seat 14 can move horizontally along the suspension beam 11 through a gear and rack walking mechanism. The transverse seat 14 is vertically provided with a lifting lead screw module 15, and the lifting lead screw module 15 moves together with the transverse seat 14. The lifting lead screw module 15 is slidably connected with a lifting column 16, and the lifting lead screw module 15 controls the lifting column 16 to move up and down. The robot body 121 is arranged below the lifting column 16, so that the robot body 121 can move horizontally and vertically.

[0060] The two welding devices 4 can independently operate along the respective movable rails 1, and of course when facing large structural parts, the two welding devices 4 can be combined to achieve the effect of cooperative work. Specifically, after the two welding devices 4 are aligned, the suspension beams 11 and the movable columns 10 are arranged in a door shape; after the two welding devices 4 are aligned, the connecting seats 17 are detachably connected between the suspension beams 11. Here, the connecting seats 17 are bolted to the flanges of the suspension beams 11 at both ends.

[0061] The suspension beams 11 of the two welding devices 4 are connected together through the connecting seats 17 to form a longer walking channel. In this way, the welding robot 12 slides along the X-axis on one suspension beam 11, moves to the other suspension beam 11 beyond the connecting seat 17, and then the welding robot 12 can walk between the two suspension beams 11, has a longer stroke, and can carry out a larger range of welding operations.

[0062] Here, the gear and rack walking mechanism for driving the transverse movement of the robot body 121 is described. The gear and rack walking mechanism includes a driving motor 19 with a gear 18 on the output shaft, a rack 20, a sliding rail 21, and a sliding block 22. The driving motor 19 is arranged on the front face of the transverse seat 14, and the output shaft of the driving motor 19 penetrates through the transverse seat 14 and extends out of the back face of the transverse seat 14 to be connected with the gear 18. Meanwhile, a plurality of sliding blocks 22 are arranged on the back face of the transverse seat 14.

[0063] Sliding rails 21 are arranged on both sides of the suspension beam 11 and the connecting seat 17, and the number of sliding rails 21 on each side is two arranged in an upper and lower interval. The sliding block 22 moves along the sliding rail 21, and then the transverse seat 14 can move along the suspension beam 11 through the cooperation of the sliding block 22 and the sliding rail 21. Meanwhile, racks 20 are arranged on both sides of the suspension beam 11 and the connecting seat 17, and the racks 20 are arranged between the two sliding rails 21 arranged in parallel. The gear 18 on the driving motor 19 is engaged with the rack 20.

[0064] In this way, after the driving motor 19 is started, the transverse seat 14 can be driven to move on the suspension beams 11 through the meshing of the gear 18 and the rack 20 and the cooperation of the slide rails 21, and since the suspension beams 11 and the connecting seats 17 are both provided with the racks 20 and the slide rails 21, the transverse seat 14 can reciprocate between the two suspension beams 11.

[0065] The principle of the present application is that the welding robot 12 is flexibly arranged according to the type of the product to be welded, for example, when small-sized products are processed, the products can be placed on the positioner 3 or on the welding jig 2 for welding. When placed on the positioner 3, a welding device 4 can be matched to work; when placed on the welding jig 2, multiple small-sized products can be placed, and two welding devices 4 can be matched to simultaneously weld. When large-sized products are processed, the products are hoisted to the welding jig 2, and two welding devices 4 can be simultaneously used for welding, or the suspension beams 11 of the two welding devices 4 are connected by the connecting seats 17, so that the welding robot 12 walks between the two suspension beams 11, better serving the welding of large-sized products, and having the characteristics of wide coverage and large activity radius.

[0066] The entire welding workstation is controlled by an industrial computer, and the industrial computer is connected with a PLC control cabinet 122, and can send control instructions to the PLC control cabinet 122. The PLC control cabinet 122 is connected with the positioner 3 and the welding device 4, and can control the movement of the positioner 3 and the movement of the welding device 4.

[0067] In order to optimize the product structure and realize smooth operation of the parts, the workstation further comprises a lubricating mechanism for lubricating the walking base 9 and the X-axis sliding of the welding robot 12, and the lubricating mechanism is arranged at two places, one on the walking base 9 and the other on the transverse seat 14.

[0068] The lubricating mechanism comprises an electric lubricating oil pump 231, a valve block 232, an oil pipe 233, a bracket 234 and a lubricating gear 235. The electric lubricating oil pump 231 can store and pump lubricating oil, and the electric lubricating pump is communicated with the valve block 232 through the oil pipe 233, and the valve block 232 plays a distribution role. The valve block 232 is communicated with multiple oil pipes 233, and each oil pipe 233 is communicated with a sliding block 22, so that lubricating oil can be distributed to each sliding block 22.

[0069] The support 234 is used to fix the lubricating gear 235 on a certain carrier, for example, the support 234 is installed on the walking base 9, and the lubricating gear 235 can be fixed on the walking base 9. The support 234 is connected with the lubricating gear 235 through a rotary joint, that is, the support 234 is provided with a rotary joint at one end, and the lubricating gear 235 is arranged on the rotary joint and can rotate. The lubricating gear 235 is engaged with the rack 20, and the valve block 232 is further communicated with the lubricating gear 235 through the oil pipe 233 and the rotary joint, so that the lubricating oil can be supplied to the lubricating gear 235 through the oil pipe 233 and the rotary joint.

[0070] The purpose of the lubricating gear 235 is to lubricate the rack 20, so that the gear 18 and the rack 20 on the motor 19 can be lubricated. The central hole of the lubricating gear 235 is a blind hole, and the lower end of the rotary joint is inserted into the central hole of the lubricating gear 235 and fixed with the rotary joint. Three oil outlet holes 236 are uniformly arranged on the circumferential side of the lubricating gear 235, the oil outlet holes 236 are arranged radially along the lubricating gear 235, the oil outlet holes 236 are communicated with the central hole of the lubricating gear 235 inwardly and extend to the edge of the lubricating gear 235 outwardly. The lubricating oil delivered by the rotary joint flows out of the lubricating gear 235 through the central hole and the oil outlet holes 236, so as to lubricate the rack 20.

[0071] The above-mentioned embodiments are only the preferred embodiments of the present application, and are not limited to the scope of the present application. Any equivalent changes or modifications made according to the structure, features and principles described in the patent scope of the present application shall be included in the patent scope of the present application.

Claims

1. A discrete automatic welding station, characterized in that, Including mobile ground rail (1), welding jig (2) and variable position equipment (3) and welding equipment (4), multiple welding jig (2) is laid between two mobile ground rail (1), multiple welding jig (2) is in a word type interval arrangement, adjacent two welding jig (2) between being provided with connecting plate (5), welding jig (2) is steel structure grid frame;Variable position equipment (3) is provided between the one end of two mobile ground rail (1), and variable position equipment (3) includes variable position machine (31) and fixed clamp (32) controlled by variable position machine (31); Two mobile ground rail (1) is interval parallel arrangement, and the length of two mobile ground rail (1) is different, and the variable position equipment (3) is arranged between the one end of two mobile ground rail (1), and the other end is flush;Mobile ground rail (1) outside is provided with safety fence (30);Variable position machine (31) is L type variable position machine (31), and fixed clamp (32) includes clamp bottom plate (6), centering module one (7) and centering module two (8), and the clamp bottom plate (6) is provided with centering module one (7) and centering module two (8) at intervals, and centering module one (7) and centering module two (8) all include manual bidirectional screw rod module and clamp controlled by manual bidirectional screw rod module; The clamp on centering module one (7) is round table cylinder (24), and the clamp on centering module two (8) is pressing plate (25), and the pressing plate (25) is threadedly connected with pressing bolt (27), and supporting column (26) is further provided between centering module one (7) and centering module two (8), and the number of supporting column (26) is four arranged in a rectangular shape; Two welding equipment (4) are respectively provided on two mobile ground rail (1), and two welding equipment (4) are arranged towards each other, and welding equipment (4) includes walking base (9), mobile stand column (10), suspension beam (11) and welding robot (12), the walking base (9) is slidably connected on mobile ground rail (1), and the mobile stand column (10) is vertically arranged above the walking base (9), and the suspension beam (11) is horizontally arranged above the mobile stand column (10), and the welding robot (12) is slidably connected on one side of the suspension beam (11), and the welding robot (12) is arranged on the suspension beam (11) and slidably moves along X axis and Y axis; The welding robot (12) on two welding equipment (4) is arranged on both sides of the suspension beam (11), and the connecting seat (17) is detachably connected between the suspension beam (11) after the alignment of two welding equipment (4), and the welding robot (12) moves on one suspension beam (11) along X axis, crosses the connecting seat (17) and moves to another suspension beam (11).

2. The discrete automatic welding station of claim 1, wherein, The walking base (9) walks along mobile ground rail (1) through gear and rack walking mechanism, and the cross section of the combination of the mobile stand column (10) and the suspension beam (11) is L-shaped;After the alignment of two welding equipment (4), the mobile stand column (10) and the suspension beam (11) are arranged in a door shape.

3. The discrete automatic welding station of claim 1, wherein, The welding robot (12) comprises a robot body (121), a control cabinet (122), a welding power supply (123), a welding wire barrel (124) and a wire feeder (125), the robot body (121) is a six-axis robot, the robot body (121) is placed on the suspension beam (11) and slides bidirectionally, and the robot body (121) is provided with a dust removal welding gun (29); The mobile column (10) is provided with a column tray (13), the column tray (13) surrounds the mobile column (10), the control cabinet (122), the welding power supply (123) and the welding wire barrel (124) are arranged on the column tray (13), and the wire feeder (125) is arranged on the mobile column (10).

4. The discrete automatic welding station of claim 3, wherein, The suspension beam (11) is horizontally slidably connected with a transverse seat (14), the transverse seat (14) moves along the suspension beam (11) through a gear and rack walking mechanism, a lifting lead screw module (15) is vertically arranged on the transverse seat (14), and the robot body (121) is arranged below the lifting lead screw module (15).

5. The discrete automatic welding station of claim 4, wherein, The gear and rack walking mechanism comprises a driving motor (19) with a gear (18) on an output shaft, a rack (20), sliding rails (21) and sliding blocks (22), the driving motor (19) is arranged on the transverse seat (14), and a plurality of sliding blocks (22) are arranged on the transverse seat (14); The suspension beam (11) and the connecting seat (17) are provided with the sliding rails (21) on both sides, the number of the sliding rails (21) on each side is two, and the sliding blocks (22) move along the sliding rails (21); The suspension beam (11) and the connecting seat (17) are provided with the racks (20) on both sides, the gear (18) on the driving motor (19) is engaged with the racks (20), and the racks (20) are arranged between the two parallel sliding rails (21).

6. The discrete automatic welding station of claim 1, wherein, The connecting seat (17) is connected to the suspension beam (11) through flange bolts at both ends.

7. The discrete automatic welding station of claim 1, wherein, Further comprising a lubricating mechanism for lubricating the walking base (9) and the X-axis sliding of the welding robot (12), the lubricating mechanism comprises an electric lubricating oil pump (231), a valve block (232), oil pipes (233), a support (234) and a lubricating gear (235), the electric lubricating oil pump (231) is communicated with the valve block (232), a plurality of oil pipes (233) are communicated with the valve block (232), and each oil pipe (233) is communicated with a sliding block (22). The support (234) is connected with a lubricating gear (235) through a rotary joint, the valve block (232) is also communicated with the lubricating gear (235) through an oil pipe (233) and a rotary joint, the lubricating gear (235) is engaged with a rack (20), the central hole of the lubricating gear (235) is a blind hole, the lower end of the rotary joint is inserted into the central hole of the lubricating gear (235), and the lubricating gear (235) is uniformly provided with oil outlet holes (236) on the circumferential side.

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