Automatic welding platform for combine harvester filter screen

Abstract

The application discloses a kind of combine harvester filter screen automatic welding platform, including workbench, the workbench upper end is fixedly installed with welding mechanical arm, the workbench outside is movably connected with connecting seat and three groups of storage box, three groups The storage box is connected with each other by a plurality of first connecting rods, the connecting seat both sides are fixedly connected with first connecting rod, the second connecting rod is inserted into second storage groove and is fixedly connected with pusher plate away from arc-shaped pusher plate one end, the workbench upper end is equipped with a plurality of clamping mechanisms;Filter screen is stored into first storage tank for storage, and the connecting seat is moved back and forth between three clamping mechanisms along the workbench to load filter screen and filter screen mounting plate, and the third pusher plate can push the filter screen and filter screen mounting plate welded together into the storage box for storage, to solve the situation that welding workstation cannot continue to work due to the inability of manual quick assembly and disassembly and temporary off-duty.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of filter screen welding workstations, in particular to an automatic filter screen welding platform for a combine harvester. BACKGROUND

[0002] As a Chinese patent with publication number CN109079412A discloses an efficient welding workstation, which comprises a rotary worktable and a welding mechanical arm, the working part of the welding mechanical arm is located above the rotary worktable, a rotating arc blocking plate is vertically arranged in the middle of the rotary worktable, the rotating arc blocking plate divides the worktable into two work areas on both sides, the two work areas are a welding area close to the welding mechanical arm and a piece loading area away from the welding mechanical arm, and the rotary worktable rotates to make the two work areas pass under the working part of the welding mechanical arm.

[0003] However, the above-mentioned scheme has the following disadvantages: in the above-mentioned patent, the workpiece to be welded is clamped by a worker outside the piece loading area, then the workpiece is sent to the welding work area for processing by the rotation of the rotary worktable, and after the welding is completed, the workpiece returns to the piece loading area to be disassembled and clamped with a new workpiece by the worker. Although this kind of way can complete the welding work by one person and ensure that the welding work continues, in the actual production process, the surface temperature of the workpiece just welded is relatively high, so the worker cannot quickly disassemble and clamp the workpiece, which causes a short interruption of the welding work. When the worker leaves the piece loading area for a short time, the welding workstation cannot continue to work. Therefore, we propose an automatic filter screen welding platform for a combine harvester. SUMMARY

[0004] The present application aims to provide an automatic filter screen welding platform for a combine harvester to solve the problems raised in the background.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical scheme:

[0006] An automatic filter screen welding platform for a combine harvester, comprising a worktable, a welding mechanical arm is fixedly installed on the upper end of the worktable, a connecting seat and three groups of storage boxes are movably connected to the outer side of the worktable, the three groups of storage boxes are connected to each other through a plurality of groups of first connecting rods, first connecting rods are fixedly connected to both sides of the connecting seat, the first connecting rods are fixedly connected to the storage boxes at the ends away from the connecting seat, a first storage groove is formed in the upper end of the connecting seat, and a first push plate is movably connected in the first storage groove.

[0007] Two groups of second storage grooves are formed in the upper end of the connecting seat, a second push plate is movably connected in the second storage groove, an arc-shaped push plate is arranged on the upper side of the first push plate, the arc-shaped push plate is slidably connected in the first storage groove, the first storage groove is formed in the connecting seat, second connecting rods are fixedly connected to the two ends of the arc-shaped push plate, the second connecting rods are slidably connected in the sliding grooves, and the sliding grooves are formed in the connecting seat.

[0008] An arc-shaped push plate is arranged on the upper side of the second push plate, the push plate is slidably connected in the second storage groove, the second storage groove is formed in the connecting seat, the second connecting rod is inserted into the second storage groove away from the arc-shaped push plate and is fixedly connected with the push plate, and the upper end of the workbench is provided with a plurality of clamping mechanisms.

[0009] Preferably, two groups of transmission motors are fixedly connected to the end of the connecting seat close to the workbench, transmission gears are fixedly connected to the output ends of the transmission motors, the transmission gears are engaged in T-shaped tooth grooves, the T-shaped tooth grooves are formed in the outer side of the workbench, and two groups of guide gears are fixedly connected to the end of the storage box close to the workbench and engaged in the T-shaped tooth grooves.

[0010] Preferably, two groups of first T-shaped rods are fixedly connected to the lower end of the first push plate, the first T-shaped rods are movably connected in the lower end of the connecting seat, first springs are sleeved on the outer sides of the first T-shaped rods, the upper ends of the first springs are fixedly connected with the lower end of the first push plate, and the other ends of the first springs are fixedly connected with the first storage grooves.

[0011] Preferably, a second T-shaped rod is fixedly connected to the lower end of the second push plate, the second T-shaped rod is movably connected in the lower end of the connecting seat, a second spring is sleeved on the outer side of the second T-shaped rod, the upper end of the second spring is fixedly connected with the lower end of the second push plate, and the other end of the second spring is fixedly connected with the first storage groove.

[0012] Preferably, a first air cylinder is fixedly connected to the end of the connecting seat away from the workbench, the output end of the first air cylinder is inserted into the first storage groove and is fixedly connected with the arc-shaped push plate, and first and second cover plates are movably arranged on the upper ends of the first and second storage grooves through a screw rod.

[0013] Preferably, the clamping mechanism comprises two groups of positioning rods, two groups of positioning blocks, a third push plate and a pressing plate, the positioning blocks are movably connected to the upper end of the workbench, an inclined groove is formed in the upper end of the positioning block, the two groups of positioning rods are arranged between the two groups of positioning blocks, the positioning rods are fixedly connected to the upper end of the workbench, the third push plate is arranged on the upper side of the positioning rod, the third push plate is fixedly connected to the output end of a third air cylinder, the third air cylinder is fixedly mounted on the upper end of the workbench, the pressing plate is arranged on the upper side of the positioning rod, the pressing plate is fixedly mounted on the output end of a fourth air cylinder, and the fourth air cylinder is fixedly mounted on the upper end of the workbench.

[0014] Preferably, the lower end of the positioning block is fixedly connected with two groups of sliding blocks, the sliding blocks are slidably connected in guide grooves, the guide grooves are arranged on the upper end of the workbench, the second cylinder output end is fixedly connected to the opposite side of the two groups of positioning blocks, the second cylinder is fixedly installed on one side of the supporting plate, and the supporting plate is fixedly connected to the upper end of the workbench.

[0015] Compared with the prior art, the beneficial effects of the present application are that the filter screen is stored in the first storage tank, the filter screen mounting plate is stored in the second storage tank, the filter screen and the filter screen mounting plate are fed by moving the connecting seat back and forth along the workbench between the three groups of clamping mechanisms, and when the feeding is completed, the filter plate and the filter plate mounting plate are moved upward synchronously by the upward movement of the first and second push plates, so that the arc-shaped push plate and the push plate can push out new filter screens and filter screen mounting plates when they move outward, and when the connecting seat moves to the position of any group of clamping mechanisms, the receiving box can also move to the position of the corresponding clamping mechanism, so that the third push plate can push the welded filter screen and filter screen mounting plate into the storage box for storage after welding, realizing automatic feeding and discharging, and solving the problem that the welding station cannot continue to work due to the inability of manual quick loading and unloading and temporary off-duty. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a schematic view of the cross-sectional structure of the present application;

[0017] Figure 2 It is a schematic view of the cross-sectional structure of the connecting seat of the present application;

[0018] Figure 3 It is a schematic view of the cross-sectional structure of the connecting seat of the present application;

[0019] Figure 4 It is a schematic view of the cross-sectional structure of the filter screen and the filter screen mounting plate in storage state of the present application;

[0020] Figure 5 It is a schematic view of the connecting relationship between the arc-shaped push plate and the push plate of the present application;

[0021] Figure 6 It is a schematic view of the connecting relationship between the positioning block and the second cylinder of the present application;

[0022] Figure 7 It is a schematic view of the clamping mechanism structure of the present application;

[0023] Figure 8 It is a schematic view of the connecting relationship between the T-shaped tooth groove and the transmission gear of the present application;

[0024] Figure 9 It is a schematic view of the connecting relationship between the filter screen and the filter screen mounting plate of the present application.

[0025] In the figure: 1, workbench; 2, first connecting rod; 3, storage box; 4, third cylinder; 5, positioning rod; 6, third push plate; 7, first storage groove; 8, first push plate; 9, first storage groove; 10, first cylinder; 11, sliding groove; 12, arc-shaped push plate; 13, second storage groove; 14, push plate; 15, second storage groove; 16, second push plate; 17, transmission motor; 18, second cylinder; 19, guide gear; 20, welding robot; 21, positioning block; 22, transmission gear; 23, connecting seat; 24, filter screen; 25, second connecting rod; 26, second T-shaped rod; 27, first spring; 28, first T-shaped rod; 29, second spring; 30, first cover plate; 31, second cover plate; 32, sliding block; 33, chute; 34, support plate; 35, T-shaped gear slot; 36, fourth cylinder; 37, pressing plate; 38, guide groove; 39, filter screen mounting plate; 40, screw rod. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0027] Please refer to Figures 1-9 The present application provides a technical solution:

[0028] Embodiment 1

[0029] A combined harvester filter screen automatic welding platform, comprising a workbench 1, a welding robot 20 is fixedly installed on the upper end of the workbench 1, a connecting seat 23 and three groups of storage boxes 3 are movably connected to the outer side of the workbench 1, the three groups of storage boxes 3 are connected to each other through a plurality of groups of first connecting rods 2, the first connecting rods 2 are fixedly connected to the two sides of the connecting seat 23, the ends of the first connecting rods 2 away from the connecting seat 23 are fixedly connected to the storage boxes 3, opening two transmission motors 17 drives the transmission gears 22 connected to the output ends of the transmission gears 22 to start rotating, since the transmission gears 22 are engaged in the T-shaped gear slots 35, at this time the connecting seat 23 will move along the outer side of the workbench 1, the connecting seat 23 will drive a plurality of groups of storage boxes 3 to rotate synchronously in the process of moving, a first storage groove 7 is formed in the upper end of the connecting seat 23, a first push plate 8 is movably connected in the first storage groove 7, the upper side of the first push plate 8 is arranged in an arc shape;

[0030] The upper end of the connecting seat 23 is internally provided with two groups of second storage grooves 15, which can be used to store filter screens 24. The second storage grooves 15 are movably connected with second push plates 16. The upper end of the second push plate 16 is obliquely arranged. When the pushing plate 14 pushes the filter screen mounting plate 39 out of the connecting seat 23 and returns to the initial position, the second push plate 16 moves upward under the elastic force of the second spring 29 and drives the filter screen mounting plate 39 to move upward synchronously, so that when the second push plate 16 moves outward again, it can push out a new filter screen mounting plate 39. The upper side of the first push plate 8 is provided with an arc-shaped pushing plate 12. The lower end of the arc-shaped pushing plate 12 is arranged in an arc shape and the arc shape is equal to that of the filter screen 24. The arc-shaped pushing plate 12 is slidably connected in the first storage groove 9.

[0031] The first storage groove 9 is arranged in the connecting seat 23. The two ends of the second connecting rod 25 are fixedly connected with the arc-shaped pushing plate 12. The second connecting rod 25 is slidably connected in the sliding groove 11. The sliding groove 11 is arranged in the connecting seat 23. The upper side of the second push plate 16 is provided with a pushing plate 14. The pushing plate 14 is slidably connected in the second storage groove 13. The second storage groove 13 is arranged in the connecting seat 23. The end of the second connecting rod 25 away from the arc-shaped pushing plate 12 extends into the second storage groove 13 and is fixedly connected with the pushing plate 14. Opening the first cylinder 10 drives the output end connected arc-shaped pushing plate 12 to move outward along the first storage groove 9. The arc-shaped pushing plate 12 drives the second connecting rod 25 to move outward along the sliding groove 11 in the process of moving outward. The two groups of second connecting rods 25 drive the pushing plate 14 connected therewith to move outward along the second storage groove 13 in the process of moving.

[0032] The upper end of the workbench 1 is provided with a plurality of clamping mechanisms. When the connecting seat 23 moves to the position of a clamping mechanism, the two groups of transmission motors 17 stop rotating. Opening the first cylinder 10 drives the output end connected arc-shaped pushing plate 12 to move outward along the first storage groove 9. The arc-shaped pushing plate 12 drives the second connecting rod 25 to move outward along the sliding groove 11 in the process of moving outward. The two groups of second connecting rods 25 drive the pushing plate 14 connected therewith to move outward along the second storage groove 13 in the process of moving. The arc-shaped pushing plate 12 and the two groups of pushing plates 14 move outward in the process of moving, which pushes the filter screens 24 stored in the first storage groove 7 and the filter screen mounting plates 39 stored in the second storage groove 15 out of the connecting seat 23. The pushed-out filter screens 24 move to the upper side of the two groups of positioning rods 5. The pushed-out two groups of filter screen mounting plates 39 move into the corresponding inclined grooves 33.

[0033] Embodiment 2:

[0034] On the basis of embodiment 1, in order to make the connecting seat 23 move along the outer side of the workbench 1, and when a group of filter screens 24 or filter screen mounting plates 39 are pushed out, the remaining filter screens 24 and filter screen mounting plates 39 can move upwards, ensuring that the arc-shaped pushing plate 12 and the pushing plate 14 can push out new filter screens 24 and filter screen mounting plates 39, the connecting seat 23 is fixedly connected with two groups of transmission motors 17 at one end close to the workbench 1, the output end of the transmission motor 17 is fixedly connected with a transmission gear 22, the transmission gear 22 is engaged in the T-shaped tooth groove 35, the T-shaped tooth groove 35 is opened in the outer side of the workbench 1, and the receiving box 3 is fixedly connected with two groups of guide gears 19 at one end close to the workbench 1. The guide gears 19 are engaged in the T-shaped tooth groove 35, and the transmission gears 22 connected with the output ends of the two groups of transmission motors 17 are started to rotate, and since the transmission gears 22 are engaged in the T-shaped tooth groove 35, the connecting seat 23 will move along the outer side of the workbench 1 at this time, and the connecting seat 23 will drive several groups of receiving boxes 3 to rotate synchronously in the moving process.

[0035] The first pushing plate 8 is fixedly connected with two groups of first T-shaped rods 28 at the lower end, the first T-shaped rods 28 are movably connected in the lower end of the connecting seat 23, the first T-shaped rods 28 are sleeved with first springs 27 outside, one end of the first spring 27 is fixedly connected with the lower end of the first pushing plate 8, and the other end is fixedly connected with the first storage groove 7. The second pushing plate 16 is fixedly connected with a second T-shaped rod 26 at the lower end, the second T-shaped rod 26 is movably connected in the lower end of the connecting seat 23, the second T-shaped rod 26 is sleeved with a second spring 29 outside, one end of the second spring 29 is fixedly connected with the lower end of the second pushing plate 16, and the other end is fixedly connected with the first storage groove 7. When the arc-shaped pushing plate 12 and the pushing plate 14 move to the initial position, the first pushing plate 8 will move upwards under the elastic force of the first spring 27, and drive the filter screen 24 to move upwards synchronously, so that when the arc-shaped pushing plate 12 moves outward again, it can push out new filter screens 24, and the second pushing plate 16 will move upwards under the elastic force of the second spring 29 and drive the filter screen mounting plate 39 to move upwards synchronously, so that when the pushing plate 14 moves outward again, it can push out new filter screen mounting plates 39

[0036] The first cylinder 10 is fixedly connected to the connecting seat 23 away from the workbench 1, the output end of the first cylinder 10 extends into the first storage groove 9 and is fixedly connected with the arc-shaped pushing plate 12, the first storage groove 7 and the second storage groove 15 are movably provided with the first cover plate 30 and the second cover plate 31 at the upper ends through the screw rod 40, the clamping mechanism comprises two groups of positioning rods 5, two groups of positioning blocks 21, a third pushing plate 6 and a pressing plate 37, the positioning block 21 is movably connected to the upper end of the workbench 1, a chute 33 is formed in the upper end of the positioning block 21, the two groups of positioning rods 5 are arranged between the two groups of positioning blocks 21, the positioning rod 5 is fixedly connected to the upper end of the workbench 1, the third pushing plate 6 is arranged above the positioning rod 5, the third pushing plate 6 is fixedly connected to the output end of the third cylinder 4, the third cylinder 4 is fixedly installed at the upper end of the workbench 1, and the pressing plate 37 is arranged above the positioning rod 5. The pressing plate 37 is fixedly installed at the output end of the fourth cylinder 36, and the fourth cylinder 36 is fixedly installed at the upper end of the workbench 1.

[0037] The lower end of the positioning block 21 is fixedly connected with two groups of sliding blocks 32, the sliding blocks 32 slide in the guide grooves 38, the guide grooves 38 are formed in the upper end of the workbench 1, the opposite sides of the two groups of positioning blocks 21 are fixedly connected with the output ends of the second cylinders 18, the second cylinders 18 are fixedly installed on one side of the supporting plate 34, and the supporting plate 34 is fixedly connected to the upper end of the workbench 1.

[0038] The working principle is that when in use, the screw rod 40 used to fix the first cover plate 30 and the second cover plate 31 is opened, after opening, a plurality of groups of filter screens 24 are sequentially placed into the first storage groove 7, after placing, the filter screens 24 are pressed downward to ensure that the filter screens 24 are flush with the upper end face of the connecting seat 23, so that the first cover plate 30 can be reinstalled at the upper end of the first storage groove 7, when the filter screens 24 are pressed, the first pushing plate 8 moves downward and drives the two groups of first T-shaped rods 28 connected at the lower end to move downward synchronously, at this time, the first spring 27 is compressed, after all the filter screens 24 are placed, the first cover plate 30 is reinstalled through the screw rod 40, a plurality of groups of filter screen mounting plates 39 are placed into the two groups of second storage grooves 15 according to the above method, after placing, the second cover plate 31 is reinstalled using the screw rod 40, at this time, the second pushing plate 16 drives the second T-shaped rod 26 connected at the lower end to move downward, and the second spring 29 is compressed;

[0039] When it is necessary to weld the filter screen 24 and the filter screen mounting plate 39 together, at this time, the two sets of transmission motors 17 are started to rotate, since the transmission gears 22 connected to the output ends of the transmission motors 17 are engaged in the T-shaped tooth grooves 35, at this time, the connecting seat 23 will move along the outer side of the workbench 1, and the connecting seat 23 will drive a plurality of storage boxes 3 to rotate synchronously during the movement, when the connecting seat 23 moves to the position of a set of clamping mechanisms, at this time, the two sets of transmission motors 17 stop rotating, the first air cylinder 10 is opened to drive the arc-shaped pushing plate 12 connected to the output end to move outward along the first storage groove 9, and the arc-shaped pushing plate 12 drives the second connecting rod 25 to move outward along the sliding groove 11 during the outward movement, and the two sets of second connecting rods 25 drive the pushing plates 14 connected thereto to move outward along the second storage groove 13 during the movement;

[0040] During the outward movement of the arc-shaped pushing plate 12 and the two sets of pushing plates 14, the filter screen 24 stored in the first storage groove 7 and the filter screen mounting plate 39 stored in the second storage groove 15 are pushed out of the connecting seat 23, the pushed-out filter screen 24 moves to the upper side of the two sets of positioning rods 5, and the two sets of pushed-out filter screen mounting plates 39 move into the corresponding inclined grooves 33, after the pushing-out is completed, the arc-shaped pushing plate 12 and the pushing plates 14 move to the initial positions, at this time, the first pushing plate 8 moves upward under the elastic force of the first spring 27 and drives the filter screen 24 to move upward synchronously, so that the arc-shaped pushing plate 12 can push out new filter screens 24 when it moves outward again, and the second pushing plate 16 moves upward under the elastic force of the second spring 29 and drives the filter screen mounting plate 39 to move upward synchronously, so that the pushing plate 14 can push out new filter screen mounting plates 39 when it moves outward again, when the feeding of a set of clamping mechanisms is completed, the two sets of transmission motors 17 are restarted, at this time, the connecting seat 23 moves to the next set of clamping mechanisms, and when the connecting seat 23 moves to the position of the next set of clamping mechanisms, the storage box 3 moves to the position of the previous set of clamping mechanisms;

[0041] When the filter screen 24 falls on the upper side of the positioning rod 5, the filter screen mounting plate 39 falls into the chute 33, at this time the second air cylinder 18 is opened to drive the output end connected positioning block 21 to start moving, the two groups of positioning blocks 21 move inward to drive the filter screen mounting plate 39 to move synchronously, when the two groups of sliding blocks 32 connected at the lower end of the positioning block 21 move to the end of the guide groove 38, at this time the positioning block 21 stops moving while the fourth air cylinder 36 starts and drives the output end connected pressing plate 37 to move downward, the pressing plate 37 moves downward so that the two ends of the filter screen 24 are pressed on the upper end of the corresponding filter screen mounting plate 39, at this time the filter screen 24 and the filter screen mounting plate 39 can be welded together through the welding mechanical arm 20, when the welding is completed, the second air cylinder 18 drives the positioning block 21 to move to the initial position, the fourth air cylinder 36 drives the output end connected pressing plate 37 to move upward, and the third air cylinder 4 is started to drive the output end connected third push plate 6 to move outward, under the pushing of the third push plate 6, the welded filter screen 24 and the filter screen mounting plate 39 will be pushed into the storage box 3, at this time the waiting connecting seat 23 can be reloaded.

[0042] While the embodiments of the application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the spirit and scope of the application, which is defined by the following claims and their equivalents.

Claims

1. A combined harvester filter screen automatic welding platform, comprising a workbench, a welding mechanical arm is fixedly installed on the upper end of the workbench, characterized in that: The workbench outer side is movably connected with a connecting seat and three groups of storage boxes, the three groups of storage boxes are connected with each other through a plurality of groups of first connecting rods, the connecting seat is fixedly connected with first connecting rods on both sides, The first storage groove is formed in the upper end of the connecting seat, and a first push plate is movably connected in the first storage groove; two second storage grooves are formed in the upper end of the connecting seat, and a second push plate is movably connected in the second storage groove, an arc-shaped pushing plate is arranged on the upper side of the first push plate, the arc-shaped pushing plate is slidably connected in the first storage groove, the first storage groove is formed in the connecting seat, second connecting rods are fixedly connected to both ends of the arc-shaped pushing plate, the second connecting rods are slidably connected in the sliding groove, and the sliding groove is formed in the connecting seat. A pushing plate is arranged on the upper side of the second push plate, the pushing plate is slidably connected in the second storage groove, the second storage groove is formed in the connecting seat, one end of the second connecting rod away from the arc-shaped pushing plate extends into the second storage groove and is fixedly connected with the pushing plate, and a plurality of clamping mechanisms are arranged on the upper end of the workbench. The clamping mechanism comprises two positioning rods, two positioning blocks, a third push plate and a pressing plate, the positioning block is movably connected to the upper end of the workbench, an inclined groove is formed in the upper end of the positioning block, the two positioning rods are arranged between the two positioning blocks, the positioning rod is fixedly connected to the upper end of the workbench, the third push plate is arranged on the upper side of the positioning rod, the third push plate is fixedly connected to the output end of the third cylinder, the third cylinder is fixedly installed on the upper end of the workbench, the pressing plate is arranged on the upper side of the positioning rod, the pressing plate is fixedly installed on the output end of the fourth cylinder, and the fourth cylinder is fixedly installed on the upper end of the workbench. The lower end of the positioning block is fixedly connected with two sliding blocks, the sliding blocks are slidably connected in the guide groove, the guide groove is formed in the upper end of the workbench, the second cylinder output end is fixedly connected to the opposite side of the two positioning blocks, the second cylinder is fixedly installed on one side of the supporting plate, and the supporting plate is fixedly connected to the upper end of the workbench. The filter screen and the filter screen mounting plate can be welded together through the welding mechanical arm, when the welding is completed, the second cylinder drives the positioning block to move to the initial position, the fourth cylinder drives the pressing plate connected to the output end thereof to move upward, and the third cylinder is started to drive the third push plate connected to the output end thereof to move outward, so that the welded filter screen and filter screen mounting plate are pushed into the storage box under the pushing of the third push plate.

2. The automatic welding platform for combine harvester filtering screen according to claim 1, characterized in that: The connecting seat is fixedly connected with two transmission motors at the end close to the workbench, the output end of the transmission motor is fixedly connected with a transmission gear, the transmission gear is engaged in a T-shaped tooth groove, the T-shaped tooth groove is formed in the outer side of the workbench, and the storage box is fixedly connected with two guide gears at the end close to the workbench.

3. The automatic welding platform for combine harvester filtering screen according to claim 1, characterized in that: The lower end of the first push plate is fixedly connected with two first T-shaped rods, the first T-shaped rods are movably connected in the lower end of the connecting seat, first springs are sleeved on the outer sides of the first T-shaped rods, one end of each first spring is fixedly connected with the lower end of the first push plate, and the other end is fixedly connected with the first storage groove.

4. The automatic welding platform for combine harvester filtering screen according to claim 1, characterized in that: The second T-shaped rod is movably connected to the lower end of the connecting seat, a second spring is sleeved on the outer side of the second T-shaped rod, the lower end of the second push plate is fixedly connected to the upper end of the second spring, and the other end is fixedly connected with the first storage groove.

5. The automatic welding platform for combine harvester filtering screen according to claim 1, characterized in that: A first cylinder is fixedly connected to the one end of the connecting seat away from the workbench, the output end of the first cylinder extends into the first storage groove and is fixedly connected with the arc-shaped push plate, and the upper ends of the first storage groove and the second storage groove are movably provided with a first cover plate and a second cover plate through a screw rod.

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