CN112894081A

CN112894081A - Automatic girth welding machine with can change weldment automatically

Info

Publication number: CN112894081A
Application number: CN202110009058.2A
Authority: CN
Inventors: 李克红
Original assignee: Hangzhou Hongqi Building Materials Co ltd
Current assignee: Hangzhou Hongqi Building Materials Co ltd
Priority date: 2021-01-05
Filing date: 2021-01-05
Publication date: 2021-06-04

Abstract

The invention discloses an automatic ring welding machine capable of automatically replacing welding workpieces, which comprises a ring welding machine body, wherein the output end of the ring welding machine body is provided with a working table top, a driving assembly is arranged on the working table top, the output end of the driving assembly is provided with a plurality of clamping assemblies, feeding assemblies are symmetrically arranged on two sides of the upper end surface of the working table top, a feeding assembly is arranged on one side of each feeding assembly, a rotary groove is formed in the upper end surface of the working table top, a first threaded rod is rotatably arranged in the rotary groove, a first motor is arranged in the rotary groove, a moving table is sleeved on the first threaded rod, a moving block is slidably arranged on the moving table, a plurality of bayonets are formed in the side surface of the moving block, and a first conveyor belt is arranged on one side of the moving block. The labor intensity is reduced.

Description

Automatic girth welding machine with can change weldment automatically

Technical Field

The invention relates to the technical field of workpiece welding processing, in particular to an automatic ring welding machine capable of automatically replacing a welding workpiece.

Background

The girth welding machine is a machine device for welding a circular gap, for example, a welding seam between the upper cover and the lower cover of a compressor of a household air conditioner and a shell is welded by the girth welding machine, and the girth welding machine is divided into a vertical girth welding machine and a horizontal girth welding machine. The welding machines typically used in girth welders are gas shielded welders that automatically feed wire (welding material).

Traditional girth welding machine needs artifical material loading and row when using, uses comparatively troublesome, and the user can drop on table surface comparatively dangerously when the reloading hand, provides a solution to below the above problem.

Disclosure of Invention

The invention aims to provide an automatic ring welding machine capable of automatically replacing welding workpieces, which has the advantages of automatic feeding, automatic discharging, safe use, no need of machine halt, high working efficiency, realization of automatic welding full automation, reduction of labor cost and reduction of labor intensity.

The technical purpose of the invention is realized by the following technical scheme:

an automatic ring welding machine capable of automatically replacing welding workpieces comprises a ring welding machine body, wherein the output end of the ring welding machine body is provided with a working table, a driving assembly is arranged on the working table, the output end of the driving assembly is provided with a plurality of clamping assemblies, feeding assemblies are symmetrically arranged on two sides of the upper end surface of the working table, a feeding assembly is arranged between the feeding assemblies and the clamping assemblies, a rotary groove is formed in one side, close to the ring welding machine body, of the upper end surface of the working table, a first threaded rod is rotatably arranged in the rotary groove, a first motor is arranged in the rotary groove, the output end of the first motor is fixedly connected with the first threaded rod, a moving table is sleeved on the first threaded rod, a moving block is slidably arranged on the moving table, a plurality of clamping ports are formed in the side surface of the moving, the automatic conveying device is characterized in that a second motor is fixedly arranged on the mobile platform, a first flat gear meshed with the rack is fixedly arranged at the output end of the second motor, a first conveying belt is arranged on one side, close to the bayonet, of the moving block, a receiving plate is arranged on one side, far away from the first conveying belt, of the working platform, a plurality of second conveying belts are evenly arranged on the receiving plate, the second conveying belts correspond to the clamping assemblies one by one, and a third conveying belt is arranged on one side, far away from the working platform, of the receiving plate.

By adopting the technical scheme, the first conveyor belt drives the first workpiece to move towards the direction close to the movable block, the first workpiece is clamped into the bayonet close to the working table surface on the movable block for a while, the bayonet fixes the first clamped workpiece, the second motor rotates to drive the first flat gear to rotate, the first flat gear rotates to drive the mutually meshed racks to move, the racks move to drive the movable block to move, the movable block moves to enable the bayonet with the first workpiece to move towards the working table surface until the second bayonet is aligned with the first conveyor belt, the first conveyor belt clamps the first second workpiece into the first flat gear until all the bayonets on the movable block are fully clamped, the second motor continues to rotate to drive the racks to move, the racks drive the movable block to move towards the working table surface until the first workpiece is moved onto the working table surface, the first motor rotates to drive the first threaded rod to rotate, and the threaded rod rotates to, the moving platform moves along the rotating groove, the rotating groove has a limiting effect on the moving platform, so that the moving platform moves more stably, the moving platform drives the moving block to move, the moving block drives the first workpiece to move until the moving block is positioned at the upper end of one of the clamping components, the clamping components ascend to enable the first workpiece to fall in the clamping components, the clamping components clamp the first workpiece, after the first workpiece is clamped, the clamping components reset, the moving block resets and the moving block loads for the second time, the reciprocating operation is carried out until all the clamping components complete loading, after the first workpiece finishes loading, the feeding component moves the second workpiece in a direction close to the feeding component, when the second workpiece moves to one end of the feeding component, the feeding component clamps the second workpiece, then the clamped second workpiece moves above the clamping components, the feeding component is loosened to enable the second workpiece to fall on the upper end face of the first workpiece, the feeding of the second workpiece is completed, the feeding speed of the second workpiece can be increased by the two feeding assemblies and the feeding assembly, the efficiency is improved, when the feeding of the first workpiece and the second workpiece is completed, the circular welding machine body is started, the first workpiece and the second workpiece are welded by the circular welding machine body, the first workpiece and the second workpiece in one row are welded by the circular welding machine body, after the welding is completed, the clamping assemblies in the row are pushed out by the driving assembly, the first workpiece and the second workpiece are driven by the clamping assemblies to move to the second conveyor belt, the clamping assemblies are loosened, the first workpiece and the second workpiece completed by the welding machine fall on the second conveyor belt, the first workpiece and the third workpiece conveyor belt are moved by the second conveyor belt, the clamping assemblies after the discharging drive the assemblies to reset, the feeding movement is repeated, the circular welding machine body is ensured to be always in a working state, the stopping feeding is avoided, and the working efficiency is ensured, and the driving assembly can also drive the plurality of clamping assemblies to synchronously push out, the plurality of clamping assemblies are synchronously fed, all the welded workpieces I and workpieces II fall on the conveyor belt II, and the conveyor belt II intermittently moves, so that the workpieces are orderly arranged on the conveyor belt III and then are sent out, and subsequent manual collection is facilitated.

As preferred, drive assembly includes motor three, motor four, threaded rod two, threaded rod three, link and L shaped plate, the drive slot has been seted up on the table surface, motor three is fixed inside the drive slot, the threaded rod two is located drive inslot portion and three fixed connection of threaded rod, the link cover is established on threaded rod two and screw-thread fit, motor four is provided with a plurality ofly, and is a plurality of motor four and link fixed connection, threaded rod three is provided with a plurality ofly and respectively with the output end fixed connection of a plurality of motor four, the L shaped plate is provided with a plurality ofly, and a plurality of L shaped plates respectively with the three screw-thread fit of a plurality of threaded rod, centre gripping subassembly and L shaped plate one-to-one.

Adopt above-mentioned technical scheme, when one of them independent centre gripping subassembly need be unloaded, motor four rotates and drives threaded rod three and rotates, it removes to drive screw-thread fit's L shaped plate when threaded rod three rotates, L shaped plate removes and can drive the centre gripping subassembly and remove, thereby make an independent centre gripping subassembly release, when the whole centre gripping subassembly of needs is released, motor three rotates, motor three drives two rotations of threaded rod, two rotations of threaded rod drive the link and remove, make the link drive whole L shaped plate and remove, L shaped plate drives the centre gripping subassembly and removes, thereby remove whole centre gripping subassembly to conveyer belt two.

Preferably, the clamping assembly comprises a first clamping plate, a second clamping plate, an X-shaped rod, a clamping block, a fifth motor, a first bidirectional threaded rod and a first cylinder, the fifth motor is fixed at one end of the L-shaped plate, a placing groove is formed in the L-shaped plate, the first bidirectional threaded rod is located inside the placing groove, one end of the first bidirectional threaded rod penetrates through the placing groove and is fixedly connected with the output end of the fifth motor, the clamping block is provided with two ends in threaded fit with the first bidirectional threaded rod respectively, two support legs at one end of the X-shaped rod are in running fit with the two clamping blocks respectively, two stable ends of the X-shaped rod are in sliding fit with the bottom of the first clamping plate respectively, the first cylinder is fixed at one end of the first clamping plate, the output end of the first cylinder is fixedly connected with the second clamping plate, and a plurality of clamping openings are formed in opposite.

By adopting the technical scheme, the motor four rotates to drive the two-way threaded rod one to rotate, the two-way threaded rod one rotates to drive the two clamping blocks in threaded connection to move, the threads at the two ends of the two-way threaded rod one are opposite, so that the two clamping blocks move towards the direction of mutual approach, the two support legs at one end of the X-shaped rod driven by the two clamping blocks move towards the direction of mutual approach, so that the whole X-shaped rod extends, the X-shaped rod extends to push the clamping plate one upwards, the clamping plate moves upwards to drive the cylinder one to move, the cylinder one drives the clamping plate two to move upwards, so that the workpiece one falls into a corresponding clamping opening between the clamping plate one and the clamping plate two, the cylinder one retracts, the cylinder one drives the clamping plate two to move, the clamping plate one moves towards the direction of the clamping plate one, the clamping plate one and the clamping plate two clamp the workpiece one, and after clamping is, the five reversals of the motor can drive the two clamping blocks to move in opposite directions, so that the X-shaped rod is driven to withdraw, the first clamping plate and the second clamping plate are driven to withdraw, the first workpiece is taken out of the moving block, feeding of the first workpiece is completed, the first clamping plate and the second clamping plate can clamp the first workpiece, and shaking during welding is avoided.

Preferably, the feeding assembly comprises a fourth conveyor belt, a feeding box, a feeding block, a sixth motor, a seventh motor, a fourth threaded rod, a fifth threaded rod, a feeding plate and guide grooves, the guide grooves are provided with a plurality of guide grooves which penetrate through one side of the feeding box, the other ends of the guide grooves are positioned on a working table, the feeding block penetrates through the side surface of one side of the feeding box, the four conveyor belt is positioned on one side of the feeding box far away from the guide grooves, the sixth motor is fixed on the side surface of one side of the feeding box close to the feeding block, the fourth threaded rod is fixed at the output end of the sixth motor, the feeding plate penetrates through the fourth threaded rod and is in threaded fit, the seventh motor is fixed on the feeding plate, the fifth threaded rod is fixed on the output end of the seventh motor, the fifth threaded rod is in threaded fit with one end of the feeding block, and the feed inlets correspond to the guide grooves in position.

By adopting the technical scheme, the conveyor belt IV conveys the workpiece to the direction of the feeding block, so that the workpiece II is clamped into the feeding hole, the motor VI rotates to drive the threaded rod IV to rotate, the threaded rod IV rotates to drive the feeding plate to move, the feeding plate moves to drive the feeding block to move, so that the feeding hole provided with the workpiece II moves towards the inside of the feeding box until the next feeding hole moves to the front end of the conveyor belt IV, secondary feeding is carried out until the feeding hole on the feeding block is filled, the feeding plate continues to move until the feeding plate moves to the inside of the feeding box completely, the motor VII starts to drive the threaded rod V to rotate, the threaded rod V rotates to drive the feeding plate V to move upwards, so that the feeding plate moves upwards to move the workpiece II out of the feeding hole, and because the positions of the plurality of feeding holes correspond to the guide grooves, when the feeding block removes the limit on, the second workpiece can fall into the corresponding guide groove under the action of gravity, and the second workpiece can slide along the guide groove until the second workpiece falls into the lower end of the feeding assembly.

As preferred, the material loading subassembly includes pole setting, spur gear two, spur gear three, threaded rod six, motor eight, connecting rod and pneumatic clamping jaw, the pole setting is fixed on table surface, spur gear three rotates and arranges in the pole setting, pole setting and spur gear three are passed to threaded rod six, just three and six screw-thread fit of threaded rod of spur gear, motor eight is fixed in the pole setting, the output fixed connection of spur gear two and motor eight, just three intermeshing of spur gear two and spur gear the one end at threaded rod six is fixed to the connecting rod, pneumatic clamping jaw is provided with a plurality ofly and all fixes the lower terminal surface at the connecting rod, just pneumatic clamping jaw and guide slot one-to-one.

Adopt above-mentioned technical scheme, when work piece two moves to the bottom of material loading subassembly, the pneumatic clamping jaw that corresponds each other can carry out the centre gripping with work piece two, centre gripping is accomplished back motor eight and is rotated, motor eight rotates and drives flat gear two and rotate, flat gear two rotates and can drive the flat gear three of intermeshing and rotate, flat gear three rotates and drives screw-thread fit's threaded rod six and removes, make threaded rod six move towards the direction that is close to the centre gripping subassembly, threaded rod six move and drive the connecting rod and remove, the connecting rod removes and drives pneumatic clamping jaw and removes, make pneumatic clamping jaw remove directly over the centre gripping subassembly, thereby loosen pneumatic clamping jaw, make work piece two can fall on the centre gripping subassembly, accomplish the material loading of work piece two.

Preferably, the number of the bayonets, the clamping openings and the feeding openings is three.

By adopting the technical scheme, the quantity and the position of the bayonet, the clamping opening and the feed inlet correspond to each other, the feeding is ensured, the correspondence is realized, and the feeding can be completed at one time.

Preferably, the side surface of the first clamping plate is symmetrically and fixedly provided with stabilizing rods, the two stabilizing rods penetrate through the second clamping plate, and the stabilizing rods are in sliding fit with the second clamping plate.

By adopting the technical scheme, the stabilizer bar has the supporting function on one hand for the clamping plate II, reduces the stress of the cylinder I, and has the stabilizing function on the other hand, so that the clamping plate II is more stable when moving.

Preferably, the mobile station is provided with a limit groove, a limit block is arranged in the limit groove in a sliding manner, and the limit block is fixedly connected with the moving block.

By adopting the technical scheme, the limiting groove has a limiting effect on the limiting block, the separation between the moving block and the mobile station is avoided, and on the other hand, the moving block is more stable when moving, and the shaking is reduced.

Preferably, the controller is fixedly arranged on the side surface of the working table.

By adopting the technical scheme, the controller plays roles in interaction and control among signals.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment;

FIG. 2 is a top view of the embodiment;

FIG. 3 is a sectional view of the embodiment;

figure 4 is an enlarged view of an embodiment showing a mobile station and a mobile block;

FIG. 5 is an enlarged view of the loading assembly;

fig. 6 is an enlarged view of the feed assembly.

Reference numerals: 1. a ring welder body; 2. a work table; 3. a drive assembly; 4. a clamping assembly; 5. a feed assembly; 6. a feeding assembly; 7. rotating the groove; 8. a first threaded rod; 9. a first motor; 10. a mobile station; 11. a moving block; 12. a bayonet; 13. a rack; 14. a second motor; 15. a first flat gear; 16. a first conveyor belt; 17. a bearing plate; 18. a second conveyor belt; 19. a third conveyor belt; 20. a third motor; 21. a fourth motor; 22. a second threaded rod; 23. a third threaded rod; 24. a connecting frame; 25. an L-shaped plate; 26. a drive slot; 27. a first clamping plate; 28. a second clamping plate; 29. an X-shaped bar; 30. a clamping block; 31. a fifth motor; 32. a first bidirectional threaded rod; 33. a first cylinder; 34. a placement groove; 35. clamping the opening; 36. a fourth conveyor belt; 37. a feeding box; 38. a material feeding block; 39. a sixth motor; 40. a seventh motor; 41. a fourth threaded rod; 42. a fifth threaded rod; 43. a feeding plate; 44. a guide groove; 45. a feed inlet; 46. erecting a rod; 47. a flat gear II; 48. a third flat gear; 49. a sixth threaded rod; 50. a motor eight; 51. a connecting rod; 52. a pneumatic clamping jaw; 53. a stabilizer bar; 54. a limiting groove; 55. a limiting block; 56. and a controller.

Detailed Description

The following description is only a preferred embodiment of the present invention, and the protection scope is not limited to the embodiment, and any technical solution that falls under the idea of the present invention should fall within the protection scope of the present invention. It should also be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention.

As shown in figures 1 to 6, an automatic ring welding machine capable of automatically replacing a welding workpiece comprises a ring welding machine body 1, wherein an output end of the ring welding machine body 1 is provided with a working table surface 2, a controller 56 is fixedly arranged on the side surface of the working table surface 2, the controller 56 plays roles of signal interaction and control, a first conveyor belt 16 is arranged between the working table surface 2 and the ring welding machine body 1, one side, close to the ring welding machine body 1, of the upper end surface of the working table surface 2 is provided with a rotary groove 7, a first threaded rod 8 is rotatably arranged in the rotary groove 7, a first motor 9 is arranged in the rotary groove 7, the output end of the first motor 9 is fixedly connected with the first threaded rod 8, a moving table 10 is sleeved on the first threaded rod 8, a moving block 11 is slidably arranged on the moving table 10, a limiting groove 54 is arranged on the moving table 10, a limiting block 55 is slidably arranged in, the limiting groove 54 limits the limiting block 55, so that the moving block 11 is prevented from being separated from the moving platform 10, the moving block 11 is more stable when moving, the shaking is reduced, the side face, close to the first conveyor belt 16, of the moving block 11 is provided with a plurality of bayonets 12, the side face of the moving block 11 is fixedly provided with a rack 13, the moving platform 10 is fixedly provided with a second motor 14, and the output end of the second motor 14 is fixedly provided with a first flat gear 15 which is meshed with the rack 13.

The first conveyor belt 16 drives the workpiece to move towards the direction close to the moving block 11, the workpiece is clamped into a clamping opening 12, close to the workbench surface 2, of the moving block 11 for a while, the clamping opening 12 fixes the clamped workpiece, the second motor 14 rotates to drive the first flat gear 15 to rotate, the first flat gear 15 rotates to drive the racks 13 meshed with each other to move, the racks 13 move to drive the moving block 11 to move, the moving block 11 moves to enable the clamping opening 12 with the first workpiece to move towards the workbench surface 2 until the second clamping opening 12 is aligned with the first conveyor belt 16, the first conveyor belt 16 clamps the second workpiece into the first flat gear, until the clamping openings 12 in the moving block 11 are completely clamped, the second motor 14 continues to rotate to drive the racks 13 to move, and the racks 13 drive the moving block 11 to move towards the workbench surface 2 until the moving block 11 moves the first workpiece.

The driving assembly 3 is arranged on the working table surface 2, the output end of the driving assembly 3 is provided with a plurality of clamping assemblies 4, a first motor 9 rotates, a first threaded rod 8 is driven by the first motor 9 to rotate, the first threaded rod 8 drives the mobile station 10 matched with threads to move when rotating, the mobile station 10 moves along the rotary groove 7, the rotary groove 7 plays a limiting role for the mobile station 10, the mobile station 10 can move more stably, the mobile station 10 drives the movable block 11 to move, and the movable block 11 drives a first workpiece to move until the movable block 11 is located at the upper end of one of the clamping assemblies 4.

The clamping assembly 4 comprises a first clamping plate 27, a second clamping plate 28, an X-shaped rod 29, a clamping block 30, a motor five 31, a first bidirectional threaded rod 32 and a cylinder 33, the motor five 31 is fixed at one end of the driving assembly 3, a placing groove 34 is formed in the driving assembly 3, the first bidirectional threaded rod 32 is positioned in the placing groove 34, one end of the first bidirectional threaded rod 32 penetrates through the placing groove 34 and is fixedly connected with the output end of the motor five 31, the clamping block 30 is provided with two supporting legs which are respectively in threaded fit with two ends of the first bidirectional threaded rod 32, two supporting legs at one end of the X-shaped rod 29 are respectively in rotating fit with the two clamping blocks 30, two stable ends of the X-shaped rod 29 are respectively in sliding fit with the bottom of the first clamping plate 27, the cylinder 33 is fixed at one end of the first clamping plate 27, the output end of the first cylinder stabilizing rod 33 is fixedly connected with the second clamping plate 28, 53 is symmetrically, and stabilizer bar 53 and splint two 28 sliding fit, stabilizer bar 53 has played the supporting role to splint two 28 on the one hand, reduces the atress of cylinder one 33, and on the other hand plays stabilizing effect for splint two 28 more stable when moving, splint one 27 and the relative side of splint two 28 all seted up a plurality of clamp mouths 35.

The motor IV 21 rotates, the motor IV 21 rotates to drive the bidirectional threaded rod I32 to rotate, the bidirectional threaded rod I32 rotates to drive the two clamping blocks 30 which are in threaded connection to move, the threads at the two ends of the bidirectional threaded rod I32 are opposite, the two clamping blocks 30 move towards the direction of approaching each other, the two support legs at one end of the X-shaped rod 29 driven by the two clamping blocks 30 move towards the direction of approaching each other, so that the whole X-shaped rod 29 extends, the X-shaped rod 29 extends to push the clamping plate I27 upwards, the clamping plate I27 moves upwards to drive the air cylinder I33 to move, the air cylinder I33 drives the clamping plate II 28 to move upwards, a workpiece I falls in the corresponding clamping opening 35 between the clamping plate I27 and the clamping plate II 28, the air cylinder I33 retracts, the clamping plate II 33 drives the clamping plate II 28 to move, the clamping plate II 28 moves towards the clamping plate I27, and the clamping plate I27 and the clamping plate II 28 clamp the workpiece I, after the centre gripping was accomplished, the reversal of five 31 motors can drive two clamp splice 30 and remove to opposite direction, thereby drive X shape pole 29 and withdraw, drive splint one 27 and splint two 28 and withdraw, thereby take out work piece one from movable block 11, accomplish the material loading of work piece one, after the completion, centre gripping subassembly 4 resets, movable block 11 resets simultaneously, movable block 11 carries out the secondary and loads, so reciprocal all the completion of loading of all centre gripping subassemblies 4, splint one 27 and splint two 28 can carry out the centre gripping to work piece one, rocking when avoiding the welding.

The two sides of the upper end surface of the working table surface 2 are symmetrically provided with feeding components 5, the two feeding components 5 and the feeding component 6 can accelerate the feeding speed of a second workpiece and improve the efficiency, each feeding component 5 comprises a conveyor belt four 36, a feeding box 37, a feeding block 38, a motor six 39, a motor seven 40, a threaded rod four 41, a threaded rod five 42, a feeding plate 43 and a guide groove 44, the guide groove 44 is provided with a plurality of guide grooves 44 which penetrate through one side of the feeding box 37, the other ends of the guide grooves 44 are positioned on the working table surface 2, the feeding block 38 penetrates through the side surface of one side of the feeding box 37, the conveyor belt four 36 is positioned on one side of the feeding box 37 far away from the guide grooves 44, the motor six 39 is fixed on the side surface of one side of the feeding box 37 close to the feeding block 38, the threaded rod four 41 is fixed on the output end of the motor six 39, the threaded rod 43 penetrates through the threaded rod four 41 and, the five threaded rods 42 are in threaded fit with one end of the feeding block 38, a plurality of feeding holes 45 are formed in one side, close to the fourth conveyor belt 36, of the feeding block 38, and the feeding holes 45 correspond to the guide grooves 44 in position.

The conveyor belt IV 36 conveys the workpiece towards the direction of the feeding block 38, so that the workpiece II is clamped into the feeding hole 45, the motor VI 39 rotates to drive the threaded rod IV 41 to rotate, the threaded rod IV 41 rotates to drive the feeding plate 43 to move, the feeding plate 43 moves to drive the feeding block 38 to move, so that the feeding hole 45 provided with the workpiece II moves towards the inside of the feeding box 37 until the next feeding hole 45 moves to the front end of the conveyor belt IV 36, secondary feeding is carried out until the feeding hole 45 on the feeding block 38 is filled, the feeding plate 43 continues to move until the feeding plate 43 completely moves to the inside of the feeding box 37, the motor VII 40 is started to drive the threaded rod V42 to rotate, the threaded rod V42 rotates to drive the feeding plate 43 to move upwards, so that the feeding plate 43 moves upwards to move the workpiece II out of the feeding hole 45, and the positions of the feeding, when the feeding block 38 removes the limit of the second workpiece, the second workpiece falls into the corresponding guide groove 44 under the action of gravity, and the second workpiece slides along the guide groove 44 until the second workpiece falls into the bottom of the guide groove 44.

A feeding assembly 6 is arranged between the feeding assembly 5 and the clamping assembly 4, the feeding assembly 6 comprises an upright rod 46, a flat gear II 47, a flat gear III 48, a threaded rod VI 49, a motor eight 50, a connecting rod 51 and a pneumatic clamping jaw 52, the upright rod 46 is fixed on the worktable surface 2, the flat gear III 48 is rotatably arranged on the upright rod 46, the threaded rod VI 49 penetrates through the upright rod 46 and the flat gear III 48, the flat gear III 48 is in threaded fit with the threaded rod VI 49, the motor eight 50 is fixed on the upright rod 46, the flat gear II 47 is fixedly connected with the output end of the motor eight 50, the flat gear II 47 and the flat gear III 48 are mutually meshed with the connecting rod 51 and fixed at one end of the threaded rod VI 49, the pneumatic clamping jaw 52 is provided with a plurality of parts and fixed on the lower end face of the connecting rod 51.

When a second workpiece moves to the bottom of the feeding assembly 6, the corresponding pneumatic clamping jaws 52 clamp the second workpiece, after clamping is completed, the motor eight 50 rotates to drive the flat gear two 47 to rotate, the flat gear two 47 rotates to drive the flat gear three 48 meshed with each other to rotate, the flat gear three 48 rotates to drive the threaded rod six 49 in threaded fit to move, the threaded rod six 49 moves towards the direction close to the clamping assembly 4, the threaded rod six 49 moves to drive the connecting rod 51 to move, the connecting rod 51 moves to drive the pneumatic clamping jaws 52 to move, the pneumatic clamping jaws 52 move to the position right above the clamping assembly 4, and therefore the pneumatic clamping jaws 52 are loosened, the second workpiece falls on the clamping assembly 4, and feeding of the second workpiece is completed.

When the first workpiece and the second workpiece are fed, the ring welding machine body 1 is started, the ring welding machine body 1 welds the first workpiece and the second workpiece, and the ring welding machine body 1 welds the first workpiece and the second workpiece in one row.

Drive assembly 3 includes motor three 20, motor four 21, threaded rod two 22, threaded rod three 23, link 24 and L shaped plate 25, table surface 2 is last to have seted up drive slot 26, motor three 20 is fixed inside drive slot 26, threaded rod two 22 is located drive slot 26 inside and three 23 fixed connection of threaded rod, link 24 cover is established on threaded rod two 22 and screw-thread fit, motor four 21 is provided with a plurality ofly, a plurality of motor four 21 and link 24 fixed connection, threaded rod three 23 is provided with a plurality ofly and respectively with the output fixed connection of a plurality of motor four 21, L shaped plate 25 is provided with a plurality ofly, and a plurality of L shaped plates 25 respectively with three 23 screw-thread fit of a plurality of threaded rod, centre gripping subassembly 4 and L shaped plate 25 one-to-one.

One side of the working table top 2, which is far away from the first conveyor belt 16, is provided with a receiving plate 17, a plurality of second conveyor belts 18 are evenly arranged on the receiving plate 17, the plurality of second conveyor belts 18 correspond to the plurality of clamping components 4 one by one, and one side of the receiving plate 17, which is far away from the working table top 2, is provided with a third conveyor belt 19.

When the material is to be unloaded after the welding of one of the clamping assemblies 4 is finished, the motor IV 21 rotates to drive the threaded rod III 23 to rotate, the threaded rod III 23 rotates to drive the L-shaped plate 25 in threaded fit, the L-shaped plate 25 moves to drive the clamping assembly 4 to move, so that a single clamping component 4 is pushed out, the clamping component 4 drives the first workpiece and the second workpiece to move to the second conveyor belt 18, the clamping component 4 is released, the first workpiece and the second workpiece which are finished by the welding machine fall on the second conveyor belt 18, the second conveyor belt moves to move the first workpiece and the second workpiece which are finished by welding to the upper surface of the third conveyor belt 19, the clamping component 4 after discharging drives the component 3 to reset, the feeding motion is repeated, the body 1 of the circular welding machine is guaranteed to be in a working state all the time, the feeding during shutdown is avoided, and the working efficiency is guaranteed.

When all the clamping assemblies 4 are required to be pushed out, the motor III 20 rotates, the motor III 20 drives the threaded rod II 22 to rotate, the threaded rod II 22 rotates to drive the connecting frame 24 to move, the connecting frame 24 drives all the L-shaped plates 25 to move, the L-shaped plates 25 drive the clamping assemblies 4 to move, all the clamping assemblies 4 are moved to the conveyor belt II 18, synchronous blanking of the clamping assemblies 4 is carried out, all the welded workpieces I and the welded workpieces II fall on the conveyor belt II 18, the conveyor belt II 18 intermittently moves, the workpieces are arranged on the conveyor belt III 19 in order and then are discharged, and subsequent manual collection is facilitated.

Bayonet 12, clamp mouth 35 and feed inlet 45 all are provided with threely, and bayonet 12, clamp mouth 35 and feed inlet 45 quantity and position correspond each other, guarantee the material loading and make the correspondence, guarantee that the material loading can be once accomplished.

Claims

1. The automatic ring welding machine with the function of automatically replacing a welding workpiece is characterized by comprising a ring welding machine body (1), wherein the output end of the ring welding machine body (1) is provided with a working table top (2), the working table top (2) is provided with a driving assembly (3), the output end of the driving assembly (3) is provided with a plurality of clamping assemblies (4), the two sides of the upper end surface of the working table top (2) are symmetrically provided with feeding assemblies (5), a feeding assembly (6) is arranged between the feeding assemblies (5) and the clamping assemblies (4), one side, close to the ring welding machine body (1), of the upper end surface of the working table top (2) is provided with a rotary groove (7), a threaded rod I (8) is rotatably arranged inside the rotary groove (7), a motor I (9) is arranged inside the rotary groove (7), and the output end of the motor I (9) is fixedly connected with the threaded rod I (8), a moving table (10) is sleeved on the first threaded rod (8), a moving block (11) is arranged on the moving table (10) in a sliding manner, a plurality of bayonets (12) are arranged on the side surface of the moving block (11), a rack (13) is fixedly arranged on the side surface of the moving block (11), a second motor (14) is fixedly arranged on the mobile station (10), a first flat gear (15) which is meshed with the rack (13) is fixedly arranged on the output end of the second motor (14), a first conveyor belt (16) is arranged on one side of the moving block (11) close to the bayonet (12), a bearing plate (17) is arranged on one side of the working table top (2) far away from the first conveyor belt (16), a plurality of second conveyor belts (18) are uniformly arranged on the bearing plate (17), the second conveyor belts (18) correspond to the clamping components (4) one by one, and a third conveyor belt (19) is arranged on one side of the bearing plate (17) far away from the working table top (2).

2. The automatic girth welding machine capable of automatically replacing the welding workpiece according to claim 1, wherein the driving component (3) comprises a motor III (20), a motor IV (21), a threaded rod II (22), a threaded rod III (23), a connecting frame (24) and an L-shaped plate (25), a driving groove (26) is formed in the working table top (2), the motor III (20) is fixed in the driving groove (26), the threaded rod II (22) is positioned in the driving groove (26) and fixedly connected with the threaded rod III (23), the connecting frame (24) is sleeved on the threaded rod II (22) and is in threaded fit with the threaded rod III (23), the motor IV (21) is provided with a plurality of motors IV (21) and is fixedly connected with the connecting frame (24), the threaded rod III (23) is provided with a plurality of motors IV (21) and is respectively and fixedly connected with output ends of the motors IV (21), l shaped plate (25) are provided with a plurality ofly, and a plurality of L shaped plate (25) respectively with three (23) screw-thread fit of a plurality of threaded rods, centre gripping subassembly (4) and L shaped plate (25) one-to-one.

3. The automatic ring welding machine capable of automatically replacing welding workpieces as claimed in claim 1, wherein the clamping assembly (4) comprises a first clamping plate (27), a second clamping plate (28), an X-shaped rod (29), a clamping block (30), a fifth motor (31), a first bidirectional threaded rod (32) and a first air cylinder (33), the fifth motor (31) is fixed at one end of the L-shaped plate (25), a placing groove (34) is formed in the L-shaped plate (25), the first bidirectional threaded rod (32) is located in the placing groove (34), one end of the first bidirectional threaded rod (32) penetrates through the placing groove (34) to be fixedly connected with the output end of the fifth motor (31), the clamping block (30) is provided with two clamping blocks which are respectively in threaded fit with two ends of the first bidirectional threaded rod (32), two support legs at one end of the X-shaped rod (29) are respectively in rotating fit with the two clamping blocks (30), the X-shaped rod (29) stabilizes between two of the other end respectively with the bottom sliding fit of splint one (27), cylinder one (33) are fixed in the one end of splint one (27), the output and the clamp splice (30) two fixed connection of cylinder one (33), a plurality of double-layered mouth (35) have all been seted up to splint one (27) and the relative side of splint two (28).

4. The automatic ring welding machine with the function of automatically replacing welding workpieces as claimed in claim 1, characterized in that the feeding assembly (5) comprises a conveyor belt four (36), a feeding box (37), a feeding block (38), a motor six (39), a motor seven (40), a threaded rod four (41), a threaded rod five (42), a feeding plate (43) and a guide groove (44), the guide groove (44) is provided with a plurality of guide grooves (44) which penetrate one side of the feeding box (37), the other ends of the guide grooves (44) are positioned on the working table top (2), the feeding block (38) penetrates one side surface of the feeding box (37), the conveyor belt four (36) is positioned on one side of the feeding box (37) far away from the guide groove (44), the motor six (39) is fixed on one side surface of the feeding box (37) near the feeding block (38), and the threaded rod four (41) is fixed on the output end of the motor six (39), the feeding plate (43) penetrates through the threaded rod IV (41) and is in threaded fit, the motor VII (40) is fixed on the feeding plate (43), the threaded rod V (42) is fixed at the output end of the motor VII (40), the threaded rod V (42) is in threaded fit with one end of the feeding block (38), a plurality of feeding holes (45) are formed in one side, close to the conveyor belt IV (36), of the feeding block (38), and the feeding holes (45) correspond to the guide groove (44) in position.

5. The automatic ring welding machine with the function of automatically replacing welding workpieces as claimed in claim 1, characterized in that the feeding assembly (6) comprises an upright rod (46), a flat gear two (47), a flat gear three (48), a threaded rod six (49), a motor eight (50), a connecting rod (51) and a pneumatic clamping jaw (52), the upright rod (46) is fixed on the working table top (2), the flat gear three (48) is rotatably arranged on the upright rod (46), the threaded rod six (49) penetrates through the upright rod (46) and the flat gear three (48), the flat gear three (48) and the threaded rod six (49) are in threaded fit, the motor eight (50) is fixed on the upright rod (46), the flat gear two (47) is fixedly connected with the output end of the motor eight (50), and the flat gear two (47) and the flat gear three (48) are mutually meshed, the connecting rod (51) is fixed at one end of the threaded rod six (49), the pneumatic clamping jaws (52) are provided with a plurality of lower end faces which are fixed on the connecting rod (51), and the pneumatic clamping jaws (52) correspond to the guide grooves (44) one by one.

6. An automatic ring welding machine with automatic exchangeable welding pieces according to claim 1, characterized in that the bayonet (12), the clamping opening (35) and the feed opening (45) are provided in three numbers.

7. The automatic ring welding machine with the automatic replaceable welding workpiece as claimed in claim 3, characterized in that the side of the first clamping plate (27) is symmetrically and fixedly provided with stabilizing bars (53), two stabilizing bars (53) penetrate through the second clamping plate (28), and the stabilizing bars (53) and the second clamping plate (28) are in sliding fit.

8. The automatic ring welding machine with the function of automatically replacing the welding workpiece as claimed in claim 1, wherein a limiting groove (54) is formed on the moving table (10), a limiting block (55) is slidably arranged in the limiting groove (54), and the limiting block (55) is fixedly connected with the moving block (11).

9. An automatic ring welding machine with automatic replacement of welding work piece according to claim 1 characterized in that the side of the working table (2) is fixedly provided with a controller (56).