Full-automatic sieve plate welding equipment

Abstract

The invention is suitable for the technical field of welding equipment, and provides full-automatic sieve plate welding equipment which comprises a supporting frame, supporting frames are fixedly connected to the two sides of the top of the supporting frame, stepping motors are fixedly connected to the side wall of one of the supporting frames, a sliding rod is fixedly connected between the two stepping motors, and the sliding rod is fixedly connected to the top of the supporting frame. And a driving block is slidably arranged on the periphery of the sliding rod, a first rotating threaded rod is in threaded connection with the middle of the driving block, the two ends of the first rotating threaded rod are rotationally connected with the two supporting frames correspondingly, and an output shaft of the stepping motor is fixedly connected with the first rotating threaded rod. A plurality of welding points on the surface of a screen can be welded at the same time through a plurality of welding heads, then the welding efficiency of the device on a screen plate can be improved, after a second rotary knob is rotated, the distance between the multiple welding heads can be synchronously adjusted at the same time, and therefore the multiple welding heads can adapt to welding of screens with different hole diameters, and the welding efficiency of the screen plate is improved. And the application range of the device is widened.

Description

Technical Field

[0001] The invention belongs to the technical field of welding equipment, and in particular relates to a full-automatic sieve plate welding equipment. Background Art

[0002] The screen is woven with metal wire or fiber wire. It can remove and recover different types and small suspended solids. Screen separation has the advantages of simplicity, high efficiency and low operating cost. It is generally used for small-scale wastewater treatment. There are many kinds of screens, the main two are vibrating screens and hydraulic screens.

[0003] The Chinese invention patent with the publication number CN114952104A discloses a device for fully automatic welding of anti-hair screen plates, which belongs to the technical field of screen plate welding equipment. It is characterized in that: the lateral moving device is installed on the longitudinal moving device, the lifting device is installed on the lateral moving device, the welding gun is installed on the lifting device, a plurality of welding guns are arranged side by side, and the welding tool is arranged on the lower side of the welding gun; the end support device and the end clamping device are arranged oppositely and at intervals, and a space for accommodating the screen plate is formed between the end support device and the end clamping device, and the elastic buffer device is connected to the end support device.

[0004] However, the above patent has the following shortcomings:

[0005] 1. The above patent uses multiple welding guns arranged in an array to simultaneously weld multiple welds on the sieve plate. Multiple welds can be formed on the sieve plate in one welding, and the welding speed is fast. However, the spacing between the multiple welding guns distributed in the horizontal array in the above patent cannot be adjusted, so that sieves with different apertures cannot be welded. Summary of the invention

[0006] The present invention provides a fully automatic sieve plate welding device, which aims to solve the problem that the spacing between multiple welding guns distributed in a transverse array in the above patent mentioned in the above background technology cannot be adjusted, thereby making it impossible to weld sieves with different apertures.

[0007] The present invention is implemented as follows: a fully automatic sieve plate welding device comprises a support frame, support frames are fixedly connected to both sides of the top of the support frame, a stepper motor is fixedly connected to one of the side walls of the support frame, a slide bar is fixedly connected between the two stepper motors, a driving block is slidably arranged on the outer periphery of the slide bar, a first rotating threaded rod is threadedly connected to the middle part of the driving block, both ends of the first rotating threaded rod are respectively rotatably connected to the two support frames, the stepper motor output shaft is fixedly connected to the first rotating threaded rod, a connecting rod is fixedly connected to the bottom of the driving block, and a welding mechanism for welding the sieve plate is provided at the bottom of the connecting rod;

[0008] A placement plate is provided above the support frame, a plurality of support rods are fixedly connected between the support frame and the placement plate, and a fixing mechanism for fixing sieve plates of different sizes is provided on the surface of the placement plate;

[0009] By starting the stepper motor, the first rotating threaded rod can be driven to rotate, and then the driving block and the connecting rod threadedly connected thereto can be driven to move. The connecting rod can adjust the position of the mounting shell through two electric push rods, and the height of the mounting shell can be adjusted by driving the two electric push rods to extend or retract synchronously.

[0010] Preferably, the welding mechanism comprises a mounting shell, the mounting shell is arranged at the bottom of the connecting rod, two electric push rods are arranged between the mounting shell and the connecting rod, the tops of the two electric push rods are fixedly connected to the connecting rod, and the output ends of the two electric push rods are fixedly connected to the mounting shell;

[0011] A through slot is provided at the bottom of the mounting shell, two limit rods are fixedly connected to the inner wall of the mounting shell, limit blocks are slidably provided on the outer circumferences of the two limit rods, a guide rod is fixedly connected between the two limit blocks, a positioning cylinder is provided at the bottom of the limit rod, the positioning cylinder penetrates the mounting shell, and a limit structure is provided inside the positioning cylinder;

[0012] A plurality of first sliders are slidably provided on the outer circumference of the guide rod, a plurality of second sliders are slidably provided on the outer circumference of the positioning cylinder, two connecting blocks are provided between the first slider and the second slider, two first hinged rods are hingedly provided between the first slider and the two connecting blocks, two second hinged rods are hingedly provided between the second slider and the two connecting blocks, adjacent connecting blocks are fixedly connected by connecting pieces, and a plurality of second sliders are fixedly connected to welding heads at the bottom thereof;

[0013] The top of the mounting shell is threadedly connected with a second rotating threaded rod, the bottom of the second rotating threaded rod is rotatably connected to the first sliding block in the middle, and the top of the second rotating threaded rod is fixedly connected with a first knob;

[0014] The second rotating threaded rod can be driven to rotate by rotating the first knob, and at the same time, the bottom of the second rotating threaded rod will drive the first slider in the middle to move downward. At this time, the first slider in the middle will drive all the first sliders to move downward through the guide rod. When the first slider moves downward, it will squeeze one end of the two first hinged push rods, and at the same time, the other ends of the two first hinged rods will respectively drive the two connecting blocks to move away from each other;

[0015] When the two connecting blocks at the bottom of the multiple first sliders move away from each other at the same time, the adjacent connecting blocks will be squeezed against each other through the connecting pieces. At this time, the connecting blocks will drive the first slider and the second slider connected to them to slide on the outer periphery of the guide rod and the positioning cylinder respectively through the first hinge rod and the second hinge rod. Because the moving distances of the multiple first sliders are the same, the distances of the two connecting blocks at the bottom thereof moving away from each other are also the same, so that the moving distances of the multiple first sliders and the second sliders are also the same. Because the middle first slider is limited by the second rotating threaded rod, its lateral position is inconvenient. Therefore, the above method can synchronously adjust the spacing between the multiple first sliders and the second sliders equidistantly, and then the spacing between the welding heads at the bottom of the multiple second sliders can be adjusted, so that the welding heads can adapt to sieve plates with different apertures.

[0016] Preferably, the limiting structure comprises a slide groove and a third rotating threaded rod, the number of the slide grooves is set to two, the two slide grooves are respectively opened on both sides of the positioning cylinder, and a stop rod is slidably arranged inside the two slide grooves;

[0017] The third rotating threaded rod is arranged to penetrate the positioning cylinder, the third rotating threaded rod is rotatably connected to the positioning cylinder, one end of the third rotating threaded rod is rotatably connected to the inner wall of the positioning cylinder, the other end of the third rotating threaded rod is fixedly connected to the second knob, the outer circumference of the third rotating threaded rod is threadedly connected to a plurality of movable sleeves, and third hinged rods are hingedly arranged between the two sides of the plurality of movable sleeves and the two abutting rods;

[0018] The movable sleeve is limited by the third hinge rod and cannot rotate on its own. Therefore, when the third threaded rod is rotated by the second knob, multiple movable sleeves can be driven to move synchronously at the same time. When the movable sleeve moves, it will drive one end of the third hinge rod hinged to it to move. At the same time, the other end of the third hinge rod will squeeze the abutment rod hinged to it to move, so that the outer periphery of the two abutment rods will abut against the inner walls of multiple second sliders, so that multiple second sliders can be fixed at the same time by friction, thereby preventing the second sliders and the welding heads connected to them from shaking during operation.

[0019] Preferably, the fixing mechanism comprises a transverse clamping structure for fixing both sides of the screen, a longitudinal clamping structure for fixing the front and rear sides of the screen, and a driving structure for driving the transverse clamping structure and the longitudinal clamping structure.

[0020] Preferably, the transverse clamping structure comprises a first through slot, a fixed shell and a first mounting block, the first through slot is arranged to penetrate the placement plate, the number of the first through slots is set to two, and the top of the fixed shell is fixedly connected to the placement plate;

[0021] The top of the first mounting block is fixedly connected to the placement plate, the number of the first mounting blocks is set to two, the side walls of the two first mounting blocks are rotatably provided with first driving threaded rods, the two first driving threaded rods are both arranged through the fixed shell, the two first driving threaded rods are rotatably connected to the fixed shell, and the ends of the two first driving threaded rods are both fixedly connected with first driven bevel gears;

[0022] The outer circumferences of the two first drive threaded rods are both threadedly connected with first drive plates, the middle parts of the two first drive plates are both penetrated by first through slots, and the ends of the two first drive plates are both fixedly connected with first clamping plates;

[0023] The first through groove can limit the first driving plate from rotating, so that the first driving threaded rod can be rotated to drive the first driving plate and the first clamping plate to move along the axis direction of the first driving threaded rod, so that by driving the two first driving threaded rods to rotate synchronously at the same time, the two first clamping plates can be driven to move and clamp the two sides of the screen.

[0024] Preferably, the longitudinal clamping structure includes a second through-groove and a second mounting block, the second through-groove is arranged through the placement plate, the number of the second through-groove is set to two, the number of the second mounting blocks is set to two, the tops of the two second mounting blocks are fixedly connected to the placement plate, the side walls of the two second mounting blocks are rotatably provided with a second driving threaded rod, the two second driving threaded rods are arranged through the fixed shell, the two second driving threaded rods are rotatably connected to the fixed shell, and the ends of the two second driving threaded rods are fixedly connected to a second driven bevel gear;

[0025] The outer circumferences of the two second drive threaded rods are both threadedly connected with second drive plates, the middle parts of the two second drive plates are both penetrated by second through slots, and the ends of the two second drive plates are both fixedly connected with second clamping plates;

[0026] The second through groove can limit the second driving plate from rotating, so that the second driving threaded rod can be rotated to drive the second driving plate and the second clamping plate to move along the axis of the second driving threaded rod. By driving the two second driving threaded rods to rotate synchronously at the same time, the two second clamping plates can be driven to move and clamp the front and rear sides of the screen.

[0027] Preferably, the driving structure comprises a containing shell, a fixed rod and a moving block, two positioning rods are slidably provided on both sides of the containing shell, the tops of the plurality of positioning rods are fixedly connected to the placement plate, and the bottoms of the plurality of positioning rods are fixedly connected to a stopper;

[0028] The top of the accommodating shell is penetrated by a first rotating rod, the top of the first rotating rod is penetrated by a fixed shell, the first rotating rod is movably connected to the fixed shell, the top end of the first rotating rod is fixedly connected to a first active bevel gear, the outer periphery of the first rotating rod is fixedly connected to a second active bevel gear, the first active bevel gear matches the first driven bevel gear, the second active bevel gear matches the second driven bevel gear, and the bottom of the first rotating rod is fixedly connected to a first connecting bevel gear;

[0029] A second rotating rod is provided through the end of the accommodating shell, the second rotating rod is rotatably connected to the accommodating shell, one end of the second rotating rod is fixedly connected to a second connecting bevel gear, the other end of the second rotating rod is fixedly connected to a crank, and the second connecting bevel gear is meshedly connected to the first connecting bevel gear;

[0030] The top of the fixed rod is fixedly connected to the placement plate, the side wall of the fixed rod is provided with a first slot, the side wall of the fixed rod is also provided with a second slot, the side wall of the moving block is slidably connected to the accommodating shell, the surface of the moving block is fixedly connected with a gripping rod, and the first slot and the second slot are both matched with the gripping rod;

[0031] The accommodating shell can be driven to move upward by lifting the grip rod upward, and at this time, the grip rod can be moved laterally to engage with the first clamping groove on the surface of the fixing rod, thereby fixing the lifted accommodating shell. In the process of the accommodating shell moving upward, the first rotating rod will drive the first active bevel gear to mesh with the two first driven bevel gears, and at this time, the second connecting bevel gear can be driven to rotate through the second rotating rod by rotating the crank handle, and at the same time, the second connecting bevel gear will drive the first rotating rod and the first active bevel gear to rotate through the first connecting bevel gear, and then the two first driven bevel gears and the two first driving threaded rods will be driven to rotate through the first active bevel gear, thereby driving the two first clamping plates to clamp the two sides of the screen.

[0032] The accommodating shell can be driven to move downward by pulling the holding rod downward, and at this time, the holding rod can be moved laterally to engage with the second slot on the surface of the fixing rod, thereby fixing the moved accommodating shell. In the process of the accommodating shell moving downward, the second active bevel gear will be driven to engage with the two second driven bevel gears through the first rotating rod. At this time, the second connecting bevel gear can be driven to rotate through the second rotating rod by rotating the crank handle. At the same time, the second connecting bevel gear will drive the first rotating rod and the second active bevel gear to rotate through the first connecting bevel gear, and then the two second driven bevel gears and the two first driving threaded rods will be driven to rotate through the second active bevel gear, thereby driving the two second clamping plates to clamp the front and rear sides of the screen.

[0033] Compared with the prior art, the beneficial effects of the present invention are as follows: a fully automatic sieve plate welding device of the present invention:

[0034] 1. By setting up a welding mechanism, multiple welding heads can be used to simultaneously weld multiple welding points on the surface of the screen, which is beneficial to improve the welding efficiency of the device to the screen plate, and after rotating the second knob, the spacing between the multiple welding heads can be synchronously adjusted at the same time, so that the multiple welding heads can be adapted to the welding of screens with different apertures, which is beneficial to improve the application range of the device.

[0035] 2. By setting up a fixing mechanism, the two first clamping plates and the two second clamping plates can respectively clamp the two sides and the front and rear sides of the screen, and the first clamping plates and the second clamping plates are both adjustable, so that screens of different sizes can be clamped, and the second first clamping plates and the two second clamping plates can move synchronously, so that the screen can be fixed in the center position of the placement plate, thereby facilitating the positioning of the screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0037] Figure 2 It is a cross-sectional view of the welding mechanism of the present invention;

[0038] Figure 3 It is a schematic diagram of the limiting structure of the present invention;

[0039] Figure 4 It is a partial structural schematic diagram of the fixing mechanism of the present invention;

[0040] Figure 5 For the present invention Figure 2 A magnified view of the structure of part A;

[0041] Figure 6 For the present invention Figure 3 A magnified view of the structure of part B;

[0042] Figure 7 For the present invention Figure 4 A magnified view of the C-section structure;

[0043] Figure 8 For the present invention Figure 4 Enlarged view of the D structure.

[0044] In the figure:

[0045] 1. Support frame; 11. Support frame; 12. Stepper motor; 13. Sliding rod; 14. Driving block; 15. First rotating threaded rod; 16. Connecting rod; 17. Placement plate; 18. Support rod;

[0046] 2. welding mechanism; 21. mounting shell; 22. electric push rod; 23. through slot; 24. limiting rod; 25. limiting block; 26. guide rod; 27. positioning cylinder; 28. limiting structure; 29. ​​first slider; 210. second slider; 211. second slider; 212. first hinged rod; 213. second hinged rod; 214. second rotating threaded rod; 215. first knob; 216. welding head;

[0047] 281, slide groove; 282, third rotating threaded rod; 283, stop rod; 284, second knob; 285, movable sleeve; 286, third hinged rod;

[0048] 3. Fixing mechanism;

[0049] 31. lateral clamping structure; 311. first through groove; 312. fixed shell; 313. first mounting block; 314. first driving threaded rod; 315. first driven bevel gear; 316. first driving plate; 317. first clamping plate;

[0050] 32. longitudinal clamping structure; 321. second through groove; 322. second mounting block; 323. second driving threaded rod; 324. second driven bevel gear; 325. second driving plate; 326. second clamping plate;

[0051] 33. Driving structure; 331. Accommodating shell; 332. Fixed rod; 333. Moving block; 334. Positioning rod; 335. Stopper; 336. First rotating rod; 337. First active bevel gear; 338. Second active bevel gear; 339. First connecting bevel gear; 3310. Second rotating rod; 3311. Second connecting bevel gear (3311); 3312. Crank; 3313. First slot; 3314. Second slot; 3315. Grip. DETAILED DESCRIPTION

[0052] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0053] The components of the embodiments of the present invention generally described and shown in the drawings herein may be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention.

[0054] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present invention.

[0055] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0056] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0057] See also Figure 1-8 The present invention provides a technical solution: a fully automatic sieve plate welding device, comprising a support frame 1, support frames 11 are fixedly connected to both sides of the top of the support frame 1, a stepper motor 12 is fixedly connected to the side wall of one of the support frames 11, a slide bar 13 is fixedly connected between the two stepper motors 12, a driving block 14 is slidably arranged on the outer periphery of the slide bar 13, a first rotating threaded rod 15 is threadedly connected to the middle of the driving block 14, both ends of the first rotating threaded rod 15 are respectively rotatably connected to the two support frames 11, the output shaft of the stepper motor 12 is fixedly connected to the first rotating threaded rod 15, a connecting rod 16 is fixedly connected to the bottom of the driving block 14, and a welding mechanism 2 for welding the sieve plate is arranged at the bottom of the connecting rod 16;

[0058] A placement plate 17 is provided above the support frame 1 , a plurality of support rods 18 are fixedly connected between the support frame 1 and the placement plate 17 , and a fixing mechanism 3 for fixing sieve plates of different sizes is provided on the surface of the placement plate 17 .

[0059] Further, the welding mechanism 2 includes a mounting shell 21, which is arranged at the bottom of the connecting rod 16, and two electric push rods 22 are arranged between the mounting shell 21 and the connecting rod 16, the tops of the two electric push rods 22 are fixedly connected to the connecting rod 16, and the output ends of the two electric push rods 22 are fixedly connected to the mounting shell 21;

[0060] A through slot 23 is provided at the bottom of the mounting shell 21, and two limit rods 24 are fixedly connected to the inner wall of the mounting shell 21. Limit blocks 25 are slidably provided on the outer circumference of the two limit rods 24, and a guide rod 26 is fixedly connected between the two limit blocks 25. A positioning cylinder 27 is provided at the bottom of the limit rod 24, and the positioning cylinder 27 penetrates the mounting shell 21, and a limiting structure 28 is provided inside the positioning cylinder 27.

[0061] A plurality of first sliders 29 are slidably arranged on the outer circumference of the guide rod 26, a plurality of second sliders 210 are slidably arranged on the outer circumference of the positioning cylinder 27, two connecting blocks 211 are arranged between the first slider 29 and the second slider 210, two first hinged rods 212 are hingedly arranged between the first slider 29 and the two connecting blocks 211, two second hinged rods 213 are hingedly arranged between the second slider 210 and the two connecting blocks 211, adjacent connecting blocks 211 are fixedly connected by connecting pieces, and a welding head 216 is fixedly connected to the bottom of the plurality of second sliders 210;

[0062] A second rotating threaded rod 214 is threadedly connected to the top of the mounting shell 21 , the bottom of the second rotating threaded rod 214 is rotationally connected to the first slider 29 in the middle, and the top of the second rotating threaded rod 214 is fixedly connected to the first knob 215 .

[0063] Furthermore, the limiting structure 28 includes a slide groove 281 and a third rotating threaded rod 282. The number of the slide grooves 281 is set to two. The two slide grooves 281 are respectively opened on both sides of the positioning cylinder 27. The inside of the two slide grooves 281 is slidably provided with a stop rod 283.

[0064] The third rotating threaded rod 282 passes through the positioning cylinder 27, the third rotating threaded rod 282 is rotatably connected to the positioning cylinder 27, one end of the third rotating threaded rod 282 is rotatably connected to the inner wall of the positioning cylinder 27, the other end of the third rotating threaded rod 282 is fixedly connected to the second knob 284, the outer periphery of the third rotating threaded rod 282 is threadedly connected to multiple movable sleeves 285, and third hinged rods 286 are hingedly arranged between both sides of the multiple movable sleeves 285 and the two support rods 283.

[0065] Furthermore, the fixing mechanism 3 includes a transverse clamping structure 31 for fixing both sides of the screen, a longitudinal clamping structure 32 for fixing the front and rear sides of the screen, and a driving structure 33 for driving the transverse clamping structure 31 and the longitudinal clamping structure 32 .

[0066] Further, the transverse clamping structure 31 includes a first through slot 311, a fixed shell 312 and a first mounting block 313. The first through slot 311 is arranged to penetrate the placement plate 17. The number of the first through slots 311 is set to two. The top of the fixed shell 312 is fixedly connected to the placement plate 17.

[0067] The top of the first mounting block 313 is fixedly connected to the placement plate 17, the number of the first mounting blocks 313 is set to two, the side walls of the two first mounting blocks 313 are rotatably provided with first driving threaded rods 314, the two first driving threaded rods 314 are both arranged through the fixed shell 312, the two first driving threaded rods 314 are rotatably connected to the fixed shell 312, and the ends of the two first driving threaded rods 314 are fixedly connected with first driven bevel gears 315;

[0068] The outer circumferences of the two first driving threaded rods 314 are both threadedly connected with the first driving plates 316 , the middle parts of the two first driving plates 316 are both penetrated by the first through slots 311 , and the ends of the two first driving plates 316 are both fixedly connected with the first clamping plates 317 .

[0069] Furthermore, the longitudinal clamping structure 32 includes a second through groove 321 and a second mounting block 322. The second through groove 321 is arranged to penetrate the placement plate 17. The number of the second through grooves 321 is set to two. The number of the second mounting blocks 322 is set to two. The tops of the two second mounting blocks 322 are fixedly connected to the placement plate 17. The side walls of the two second mounting blocks 322 are rotatably provided with second driving threaded rods 323. The two second driving threaded rods 323 are both arranged to penetrate the fixed shell 312. The two second driving threaded rods 323 are rotatably connected to the fixed shell 312. The ends of the two second driving threaded rods 323 are fixedly connected with second driven bevel gears 324.

[0070] Further, the driving structure 33 includes a housing 331, a fixing rod 332 and a moving block 333. Two positioning rods 334 are slidably provided on both sides of the housing 331. The tops of the multiple positioning rods 334 are fixedly connected to the placement plate 17, and the bottoms of the multiple positioning rods 334 are fixedly connected to the stoppers 335.

[0071] A first rotating rod 336 is provided through the top of the accommodating shell 331, and the top of the first rotating rod 336 is provided through the fixed shell 312, and the first rotating rod 336 is movably connected to the fixed shell 312, and a first driving bevel gear 337 is fixedly connected to the top end of the first rotating rod 336, and a second driving bevel gear 338 is fixedly connected to the outer periphery of the first rotating rod 336, and the first driving bevel gear 337 matches the first driven bevel gear 315, and the second driving bevel gear 338 matches the second driven bevel gear 324, and a first connecting bevel gear 339 is fixedly connected to the bottom of the first rotating rod 336;

[0072] A second rotating rod 3310 is provided through the end of the accommodating shell 331. The second rotating rod 3310 is rotatably connected to the accommodating shell 331. One end of the second rotating rod 3310 is fixedly connected to a second connecting bevel gear 3311. The other end of the second rotating rod 3310 is fixedly connected to a crank 3312. The second connecting bevel gear 3311 is meshedly connected to the first connecting bevel gear 339.

[0073] The top of the fixed rod 332 is fixedly connected to the placement plate 17, the side wall of the fixed rod 332 is provided with a first slot 3313, the side wall of the fixed rod 332 is also provided with a second slot 3314, the side wall of the movable block 333 is slidably connected to the accommodating shell 331, and the surface of the movable block 333 is fixedly connected with a gripping rod 3315, and the first slot 3313 and the second slot 3314 are both matched with the gripping rod 3315.

[0074] The working principle and use process of the present invention:

[0075] The accommodating shell 331 can be driven to move upward by lifting the gripping rod 3315 upward. At this time, the gripping rod 3315 can be moved laterally to engage with the first slot 3313 on the surface of the fixing rod 332, so as to fix the lifted accommodating shell 331. In the process of the accommodating shell 331 moving upward, the first driving bevel gear 337 is driven to mesh with the two first driven bevel gears 315 through the first rotating rod 336. At this time, the second connecting bevel gear 3311 can be driven to rotate through the second rotating rod 3310 by rotating the crank 3312. At the same time, the second connecting bevel gear 3311 can drive the first rotating rod 336 and the first driving bevel gear 337 to rotate through the first connecting bevel gear 339, and then the two first driven bevel gears 315 and the two first driving threaded rods 314 are driven to rotate through the first driving bevel gear 337.

[0076] The first through slot 311 can limit the first driving plate 316 from self-rotation, so that the first driving threaded rod 314 can be rotated to drive the first driving plate 316 and the first clamping plate 317 to move along the axis direction of the first driving threaded rod 314, so that the two first driving threaded rods 314 can be driven to rotate synchronously at the same time to drive the two first clamping plates 317 to move and clamp the two sides of the screen.

[0077] The accommodating shell 331 can be driven to move downward by pulling the gripping rod 3315 downward. At this time, the gripping rod 3315 can be moved laterally to engage with the second slot 3314 on the surface of the fixing rod 332, so as to fix the moved accommodating shell 331. In the process of the accommodating shell 331 moving downward, the second active bevel gear 338 can be driven to mesh with the two second driven bevel gears 324 through the first rotating rod 336. At this time, the second connecting bevel gear 3311 can be driven to rotate through the second rotating rod 3310 by rotating the crank 3312. At the same time, the second connecting bevel gear 3311 can drive the first rotating rod 336 and the second active bevel gear 338 to rotate through the first connecting bevel gear 339, and then the two second driven bevel gears 324 and the two first driving threaded rods 314 can be driven to rotate through the second active bevel gear 338.

[0078] The second through groove 321 can limit the second driving plate 325 from rotating, so that when the second driving threaded rod 323 is rotated, the second driving plate 325 and the second clamping plate 326 can be driven to move along the axial direction of the second driving threaded rod 323, so that by driving the two second driving threaded rods 323 to rotate synchronously at the same time, the two second clamping plates 326 can be driven to move and clamp the front and rear sides of the screen, thereby completing the fixation of the screen.

[0079] The second rotating threaded rod 214 can be driven to rotate by rotating the first knob 215, and the bottom of the second rotating threaded rod 214 will drive the first slider 29 in the middle to move downward. At this time, the first slider 29 in the middle will drive all the first sliders 29 to move downward through the guide rod 26. When the first slider 29 moves downward, it will squeeze one end of the two first hinged push rods, and the other ends of the two first hinged rods 212 will respectively drive the two connecting blocks 211 to move away from each other.

[0080] When the two connecting blocks 211 at the bottom of the plurality of first sliders 29 move apart at the same time, the adjacent connecting blocks 211 will be squeezed against each other through the connecting pieces. At this time, the connecting blocks 211 will drive the first slider 29 and the second slider 210 connected thereto to slide on the outer periphery of the guide rod 26 and the positioning cylinder 27 respectively through the first hinge rod 212 and the second hinge rod 213. Because the moving distances of the plurality of first sliders 29 are the same, the moving distances of the two connecting blocks 211 at the bottom thereof are also the same, so that the moving distances of the plurality of first sliders 29 and the second sliders 210 are also the same. Since the middle first slider 29 is limited by the second rotating threaded rod 214, its lateral position is inconvenient. Therefore, the spacings between the plurality of first sliders 29 and the second sliders 210 can be adjusted equidistantly in the above manner, and then the spacings of the welding heads 216 at the bottom of the plurality of second sliders 210 can be adjusted, so that the welding heads 216 can adapt to sieve plates with different apertures.

[0081] By starting the stepper motor 12, the first rotating threaded rod 15 can be driven to rotate, and then the driving block 14 and the connecting rod 16 threadedly connected thereto can be driven to move, and the connecting rod 16 can adjust the position of the mounting shell 21 through two electric push rods 22, and by driving the two electric push rods 22 to extend or retract synchronously, the height of the mounting shell 21 can be adjusted, so that the welding head 216 at the bottom of the mounting shell 21 can weld the surface of the screen.

[0082] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A fully automatic sieve plate welding device, comprising a support frame (1), characterized in that: The support frame (1) is fixedly connected to support frames (11) on both sides of the top, a stepper motor (12) is fixedly connected to the side wall of one of the support frames (11), a slide bar (13) is fixedly connected between the two stepper motors (12), a driving block (14) is slidably arranged on the outer periphery of the slide bar (13), a first rotating threaded rod (15) is threadedly connected to the middle of the driving block (14), two ends of the first rotating threaded rod (15) are respectively rotatably connected to the two support frames (11), the output shaft of the stepper motor (12) is fixedly connected to the first rotating threaded rod (15), a connecting rod (16) is fixedly connected to the bottom of the driving block (14), and a welding mechanism (2) for welding the sieve plate is provided at the bottom of the connecting rod (16); A placement plate (17) is provided above the support frame (1), a plurality of support rods (18) are fixedly connected between the support frame (1) and the placement plate (17), and a fixing mechanism (3) for fixing sieve plates of different sizes is provided on the surface of the placement plate (17).

2. A fully automatic sieve plate welding device as claimed in claim 1, characterized in that: The welding mechanism (2) comprises a mounting shell (21), the mounting shell (21) being arranged at the bottom of the connecting rod (16), two electric push rods (22) being arranged between the mounting shell (21) and the connecting rod (16), the tops of the two electric push rods (22) being fixedly connected to the connecting rod (16), and the output ends of the two electric push rods (22) being fixedly connected to the mounting shell (21); A through groove (23) is provided at the bottom of the installation shell (21); two limiting rods (24) are fixedly connected to the inner wall of the installation shell (21); limiting blocks (25) are slidably provided on the outer circumferences of the two limiting rods (24); a guide rod (26) is fixedly connected between the two limiting blocks (25); a positioning cylinder (27) is provided at the bottom of the limiting rod (24); the positioning cylinder (27) penetrates the installation shell (21); and a limiting structure (28) is provided inside the positioning cylinder (27); A plurality of first sliders (29) are slidably arranged on the outer periphery of the guide rod (26); a plurality of second sliders (210) are slidably arranged on the outer periphery of the positioning cylinder (27); two connecting blocks (211) are arranged between the first slider (29) and the second slider (210); two first hinged rods (212) are hingedly arranged between the first slider (29) and the two connecting blocks (211); two second hinged rods (213) are hingedly arranged between the second slider (210) and the two connecting blocks (211); adjacent connecting blocks (211) are fixedly connected via connecting pieces; and a plurality of second sliders (210) are fixedly connected to the bottoms of the plurality of second sliders (210); The top of the mounting shell (21) is threadedly connected to a second rotating threaded rod (214); the bottom of the second rotating threaded rod (214) is rotationally connected to a first sliding block (29) in the middle; and the top of the second rotating threaded rod (214) is fixedly connected to a first knob (215).

3. A fully automatic sieve plate welding device as claimed in claim 2, characterized in that: The limiting structure (28) comprises a slide groove (281) and a third rotating threaded rod (282), the number of the slide grooves (281) is set to two, the two slide grooves (281) are respectively opened on both sides of the positioning cylinder (27), and the two slide grooves (281) are slidably provided with a stop rod (283) inside; The third rotating threaded rod (282) is arranged to penetrate the positioning cylinder (27), the third rotating threaded rod (282) is rotationally connected to the positioning cylinder (27), one end of the third rotating threaded rod (282) is rotationally connected to the inner wall of the positioning cylinder (27), the other end of the third rotating threaded rod (282) is fixedly connected to the second knob (284), the outer periphery of the third rotating threaded rod (282) is threadedly connected to a plurality of movable sleeves (285), and third hinged rods (286) are hingedly arranged between the two sides of the plurality of movable sleeves (285) and the two support rods (283).

4. A fully automatic sieve plate welding device as claimed in claim 1, characterized in that: The fixing mechanism (3) comprises a transverse clamping structure (31) for fixing the two sides of the screen, a longitudinal clamping structure (32) for fixing the front side and the rear side of the screen, and a driving structure (33) for driving the transverse clamping structure (31) and the longitudinal clamping structure (32).

5. A fully automatic sieve plate welding device as claimed in claim 4, characterized in that: The transverse clamping structure (31) comprises a first through-groove (311), a fixed shell (312) and a first mounting block (313); the first through-groove (311) is arranged to penetrate the placement plate (17); the number of the first through-groove (311) is set to two; the top of the fixed shell (312) is fixedly connected to the placement plate (17); The top of the first mounting block (313) is fixedly connected to the placement plate (17), the number of the first mounting blocks (313) is set to two, the side walls of the two first mounting blocks (313) are rotatably provided with first driving threaded rods (314), the two first driving threaded rods (314) are both arranged to penetrate the fixed shell (312), the two first driving threaded rods (314) are rotatably connected to the fixed shell (312), and the ends of the two first driving threaded rods (314) are both fixedly connected with first driven bevel gears (315); The outer circumferences of the two first drive threaded rods (314) are both threadedly connected to the first drive plates (316), the middle parts of the two first drive plates (316) are both penetrated by the first through slot (311), and the ends of the two first drive plates (316) are both fixedly connected to the first clamping plates (317).

6. A fully automatic sieve plate welding device as claimed in claim 5, characterized in that: The longitudinal clamping structure (32) comprises a second through-groove (321) and a second mounting block (322); the second through-groove (321) is arranged to penetrate the placement plate (17); the number of the second through-groove (321) is set to two; the number of the second mounting blocks (322) is set to two; the tops of the two second mounting blocks (322) are fixedly connected to the placement plate (17); the side walls of the two second mounting blocks (322) are rotatably provided with second driving threaded rods (323); the two second driving threaded rods (323) are arranged to penetrate the fixed shell (312); the two second driving threaded rods (323) are rotatably connected to the fixed shell (312); the ends of the two second driving threaded rods (323) are fixedly connected with second driven bevel gears (324); The outer circumferences of the two second drive threaded rods (323) are both threadedly connected to the second drive plates (325), the middle parts of the two second drive plates (325) are both penetrated by the second through slot (321), and the ends of the two second drive plates (325) are both fixedly connected to the second clamping plates (326).

7. A fully automatic sieve plate welding device as claimed in claim 5, characterized in that: The driving structure (33) comprises a containing shell (331), a fixing rod (332) and a moving block (333); two positioning rods (334) are slidably provided on both sides of the containing shell (331); the tops of the plurality of positioning rods (334) are fixedly connected to the placement plate (17); and the bottoms of the plurality of positioning rods (334) are fixedly connected to a stopper (335); A first rotating rod (336) is provided through the top of the accommodating shell (331), the top of the first rotating rod (336) is provided through the fixed shell (312), the first rotating rod (336) is movably connected to the fixed shell (312), the top end of the first rotating rod (336) is fixedly connected to a first active bevel gear (337), the outer periphery of the first rotating rod (336) is fixedly connected to a second active bevel gear (338), the first active bevel gear (337) matches the first driven bevel gear (315), the second active bevel gear (338) matches the second driven bevel gear (324), and the bottom of the first rotating rod (336) is fixedly connected to a first connecting bevel gear (339); A second rotating rod (3310) is provided through the end of the accommodating shell (331), the second rotating rod (3310) is rotatably connected to the accommodating shell (331), one end of the second rotating rod (3310) is fixedly connected to a second connecting bevel gear (3311), the other end of the second rotating rod (3310) is fixedly connected to a crank (3312), and the second connecting bevel gear (3311) is meshingly connected to the first connecting bevel gear (339); The top of the fixed rod (332) is fixedly connected to the placement plate (17); a first slot (3313) is provided on the side wall of the fixed rod (332); a second slot (3314) is also provided on the side wall of the fixed rod (332); a side wall of the movable block (333) is slidably connected to the accommodating shell (331); a gripping rod (3315) is fixedly connected to the surface of the movable block (333); and the first slot (3313) and the second slot (3314) are both matched with the gripping rod (3315).

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