CN115647806A

CN115647806A - Welding machine

Info

Publication number: CN115647806A
Application number: CN202210583796.2A
Authority: CN
Inventors: 黄清耀; 马奕; 苏增朗
Original assignee: Vision Xiamen Automatic Technology Co ltd
Current assignee: Vision Xiamen Automatic Technology Co ltd
Priority date: 2022-05-25
Filing date: 2022-05-25
Publication date: 2023-01-31

Abstract

The invention discloses a welding machine which comprises a working platform, wherein a welding device is arranged on the working platform, the welding device comprises a rotary table and a welding bracket positioned above the rotary table, a product taking and placing position, a spring plate loading position, a welding fixing position and a waste material removing position are sequentially arranged in the circumferential direction of the rotary table, and a welding device is arranged on the welding bracket; the product taking and placing device is arranged corresponding to the product taking and placing position and is used for taking down the finished product on the product taking and placing position and placing the fixing frame to be welded to the product taking and placing position; the feeding and blanking device is arranged corresponding to the elastic sheet feeding position and is used for blanking the elastic sheet on the material coil and sending the elastic sheet to the elastic sheet feeding position; the waste material removing device is arranged corresponding to the waste material removing position and used for removing waste materials on the elastic sheet. The welding machine is reasonable in structural design, the mechanisms are skillfully matched, efficient and accurate welding of the elastic sheet and the fixing frame is realized, and full-automatic operation of the whole welding process is realized.

Description

Welding machine

Technical Field

The invention relates to the field of metal part welding processing, in particular to a welding machine.

Background

As shown in fig. 1, a titanium copper alloy fixing frame for a lens in a mobile phone needs to be welded and fixed with an aluminum spring at one side. The elastic sheet is small in size, so that the elastic sheet is convenient to store and transport, and is usually fixed on a material belt, and the material belt is wound into a material roll for storage; meanwhile, in order to prevent the elastic sheet from being scratched, the material belt needs to be wound with a cloth belt simultaneously when being wound into a roll, namely, a layer of cloth belt is arranged between every two adjacent circles of material belts at intervals to protect the elastic sheet. In order to improve the efficiency and realize the full-automatic welding of the elastic sheet and the fixed frame, the invention provides a welding jig so as to realize the full-automatic welding processing of the elastic sheet and the fixed frame.

Disclosure of Invention

The invention aims to provide a welding machine which can realize efficient, accurate and full-automatic welding between an elastic sheet and a fixed frame.

In order to achieve the purpose, the invention adopts the following technical scheme: a welding machine comprises a working platform, wherein the working platform is provided with a welding wire

The welding device comprises a rotary table and a welding bracket positioned above the rotary table, and is sequentially provided with a product taking and placing position, a spring plate loading position, a welding fixing position and a waste material removing position along the circumferential direction of the rotary table, wherein the rotary table is uniformly provided with four fixing structures along the circumferential direction, the four fixing structures are in one-to-one correspondence with the product taking and placing position, the spring plate loading position, the welding fixing position and the waste material removing position, and the welding bracket is provided with a welder arranged in correspondence with the welding fixing position;

the product taking and placing device is arranged corresponding to the product taking and placing position and is used for taking down a finished product on the product taking and placing the fixing frame to be welded to the product taking and placing position;

the feeding and blanking device is arranged corresponding to the elastic sheet feeding position and is used for blanking the elastic sheet on the material coil and sending the elastic sheet to the elastic sheet feeding position;

the waste material removing device is arranged corresponding to the waste material removing position and used for removing waste materials on the elastic sheet.

Further, fixed knot constructs including the fixing base, be equipped with at least one fixed slot of placing fixed frame on the fixing base, with fixed slot one-to-one and be used for the fixed floating assembly who places the shell fragment, floating assembly includes slider, floating seat, welding position needle and many vertical reset springs, the slider is equipped with a connecting hole of vertical setting, the floating seat is located the below of slider and its top are equipped with an embedding welding connection post in the connecting hole, the bottom of welding position needle with the floating seat is connected fixedly, and mobilizable the running through of its top the slider upwards wears out the slider, the bottom of slider and floating seat all passes through vertical reset spring with the fixing base is connected.

Furthermore, the welding device also comprises a welding auxiliary structure and a material pulling auxiliary structure which are arranged on the welding support, the welding auxiliary structure and the material pulling auxiliary structure are respectively arranged correspondingly to the welding fixing position and the waste material pulling position, the welding auxiliary structure comprises a horizontal protection plate and a welding cylinder, the horizontal protection plate is arranged correspondingly to the fixing structure, the welding cylinder drives the protection plate to move up and down, the protection plate is provided with at least one welding hole, and the side wall of each welding hole is communicated with an air inlet channel;

the material pulling auxiliary structure comprises a horizontal pressing plate and a material pulling cylinder, the horizontal pressing plate corresponds to the fixing structure, the material pulling cylinder drives the pressing plate to move up and down, pressing portions are arranged on the bottom surface of the pressing plate and correspond to the floating assemblies one by one, each pressing portion comprises a first pressing portion and a second pressing portion located below the corresponding first pressing portion, the second pressing portions correspond to the connecting holes, and the first connecting portions correspond to the floating blocks.

Furthermore, the product taking and placing device comprises a material storage unit, a material overturning unit and a material transplanting unit, wherein the material overturning unit and the product taking and placing position are correspondingly arranged.

Furthermore, the material storage unit comprises at least two lifting structures, each lifting structure comprises a longitudinal guide rail, a lifting platform and a lifting motor for driving the lifting platform to move up and down along a longitudinal rail, and the working platform is provided with a sensor, a material tray positioning plate for pressing a material tray from the side surface and a positioning cylinder for driving the material tray positioning plate to move transversely;

the material overturning unit comprises a rotating platform and two overturning structures, the two overturning structures are arranged at two ends of the rotating platform in a central symmetry manner, each overturning structure comprises a first overturning plate and a second overturning plate which can be overturned and stacked mutually, and two overturning cylinders which respectively drive the first overturning plate and the second overturning plate to overturn, a plurality of clamping convex blocks which are used for clamping and fixing the fixed frame are arranged on the first overturning plate, and clamping grooves which are designed in a one-to-one correspondence manner with the clamping convex blocks are arranged on the second overturning plate;

the unit is transplanted to material includes that the material is deposited moving of material exchange between unit and the material upset unit and is carried the robot, be used for material upset unit and product to get the reloading structure of material exchange between the position, move and carry the robot including moving the tool, move the tool including moving the support, locate and move the charging tray sucking disc that moves the support bottom, two sets of centrosymmetric settings move and carry the suction nozzle, it moves the lift cylinder that moves that is equipped with the drive and carries the suction nozzle lift on moving the support to move, the reloading structure includes reloading lift cylinder, by the reloading rotary cylinder that reloading lift cylinder drive can the up-and-down motion, by two sets of reloading rotary cylinder drive rotatory reloading suction nozzle, many reloading thimble, and two sets of reloading suction nozzle centrosymmetric settings, the reloading thimble one-to-one is located one side of reloading suction nozzle.

The feeding blanking device comprises a feeding unit, a blanking unit and a loading unit which are sequentially arranged along the X-axis direction, the loading unit corresponds to the loading position of the elastic sheet, the feeding unit comprises a material rack, and the material rack is provided with a horizontally arranged discharging shaft, a winding disc for winding and recovering a cloth belt and a winding motor for driving the winding disc to rotate;

the blanking unit comprises a blanking die, a blanking mechanism capable of moving up and down and a pushing mechanism for driving the material belt to move transversely in the blanking die;

the feeding unit comprises an X-axis module, a Y-axis module, a plurality of groups of material receiving structures arranged on the X-axis module and a feeding structure arranged on the Y-axis module, and the Y-axis module and the blanking unit correspond to two ends of the X-axis module respectively.

Furthermore, still be equipped with guide structure on the work or material rest, guide structure and coiling dish all are located the below of blowing axle, just guide structure is located the work or material rest and is close to one side of blanking unit, guide structure is including fixing two spacing deflectors, guide arm and the test bar on the work or material rest, and two spacing deflector parallel arrangement and two spacing deflectors between form spacing passageway, the test bar is including the paper guide pole that is located coiling dish top, two guide bars that are located spacing deflector both sides respectively, the test bar is including the first test bar that is located two guide bar lines below, the second test bar that is located the work or material rest and is close to blanking unit one side.

Further, the blanking mechanism comprises a blanking seat and a blanking cylinder, the blanking seat is located above the blanking die, the blanking cylinder drives the blanking seat to move up and down, a blanking punch, a pre-punching punch and a plurality of blanking positioning needles are arranged at the bottom end of the blanking seat, and the pre-punching punch is located behind the blanking punch along the moving direction of the material belt;

the blanking die comprises an upper die plate, a lower die plate and a gap elastic sheet positioned between the upper die plate and the lower die plate, wherein the upper die plate and the lower die plate are enclosed to form a blanking channel which transversely penetrates through the upper die plate, the upper die plate is respectively provided with a blanking hole and a pre-punching hole corresponding to a blanking punch head and a pre-punching hole, the lower die plate is respectively provided with a blanking channel corresponding to the blanking hole and the pre-punching hole, the blanking hole, the pre-punching hole and the blanking channel are communicated with the blanking channel, the blanking die is provided with positioning holes corresponding to the blanking positioning needles, the positioning holes penetrate through the upper die plate and the lower die plate, the blanking die is also provided with a plurality of limiting needles for limiting two sides of a material belt, and the limiting needles are fixedly connected with the upper die plate and the lower die plate;

the pushing mechanism is located below the blanking die and comprises a pushing seat, a pushing cylinder, a pushing block and a pushing needle, wherein the pushing seat synchronously moves up and down with the blanking die, the pushing cylinder is arranged on the pushing seat, the pushing block is driven by the pushing cylinder to transversely move, the pushing needle is vertically arranged on the pushing block, and the blanking die is provided with strip-shaped pushing holes corresponding to the pushing needle.

Furthermore, the material receiving structure comprises a material receiving block capable of extending into the blanking channel and a material receiving cylinder for driving the material receiving block to extend into or withdraw from the blanking channel, the material receiving block is provided with a fixed column, and the material loading structure comprises a material loading lifting cylinder arranged on the Y-axis module, a material loading plate driven by the material loading lifting cylinder to lift and a material loading suction nozzle arranged at the bottom end of the material loading plate.

Furthermore, the waste material removing position is located in front of the waste material removing device, the waste material removing device comprises a sliding table cylinder capable of moving back and forth, a driving unit arranged on the sliding table cylinder and a removing unit arranged on the driving unit, the driving unit comprises a driving seat and a driving assembly for driving the removing unit to move up and down, the driving assembly comprises a driving cylinder arranged longitudinally and a U-shaped block arranged transversely, a piston rod of the driving cylinder is located below the removing unit, the bottom of the U-shaped block is fixedly connected with the driving cylinder, the top of the U-shaped block is located above the removing unit, a longitudinal limiting spring is arranged between the top of the U-shaped block and the removing unit, the driving assembly further comprises a limiting guide pillar, the limiting guide pillar penetrates through the removing unit and is fixedly connected with the top of the U-shaped block and the bottom of the U-shaped block, and the longitudinal limiting spring is sleeved on the periphery of the limiting guide pillar;

the pull out the unit and include the connecting seat, locate at least a set of subassembly of pulling out on the connecting seat, pull out the subassembly including can remove the ground about and point jar seat, be located and point the cylinder on pointing the jar seat, be located the holder of pulling out unit front side and horizontal setting, the holder includes two arm lock, and two arm lock locate respectively point on two clamping jaws of cylinder, the both sides that point jar seat are equipped with limiting plate and stopper respectively, just the stopper with point and be equipped with spacing spring between the jar seat.

After adopting the technical scheme, compared with the prior art, the invention has the following advantages:

the welding machine is reasonable in structural design, the mechanisms are skillfully matched, the elastic sheet and the fixing frame are efficiently and accurately welded, and the full-automatic operation of the whole welding process is realized.

Drawings

FIG. 1 is a diagram illustrating a state of the fixed frame and the elastic sheet after welding;

FIG. 2 is a schematic view of the material tape of the present invention, wherein one end is in a punched state;

FIG. 3 is a perspective view of a welding machine in accordance with an embodiment of the present invention;

FIG. 4 is a perspective view of another perspective view of the welding machine in accordance with the present invention;

FIG. 5 is a schematic view of a welding apparatus according to an embodiment of the present invention;

FIG. 6 is a schematic view of a welding apparatus according to an embodiment of the present invention with a welder hidden;

FIG. 7 is a schematic view of a fixing structure according to an embodiment of the present invention;

FIG. 8 is a schematic view of another fixing structure according to an embodiment of the present invention;

FIG. 9 is a schematic view of a welding fixture in the welding jig according to the embodiment of the invention;

FIG. 10 is a schematic view of a scrap removal position of the welding jig according to the embodiment of the present invention;

FIG. 11 is a schematic view of a product pick-and-place device according to an embodiment of the invention;

FIG. 12 is a schematic view of a transfer tool in a transfer robot according to an embodiment of the present invention;

FIG. 13 is a schematic diagram of a refueling structure according to an embodiment of the invention;

FIG. 14 is a schematic view of a material turnover unit according to an embodiment of the present invention;

FIG. 15 is a schematic view of a material storage unit according to an embodiment of the present invention;

FIG. 16 is a schematic view of a feeding and blanking device according to an embodiment of the present invention;

FIG. 17 is a schematic view of a feed unit according to an embodiment of the present invention;

FIG. 18 is a schematic view of a blanking unit according to an embodiment of the present invention;

fig. 19 is a partial schematic view of a blanking unit according to an embodiment of the present invention;

FIG. 20 is a partially exploded view of a blanking die in accordance with an embodiment of the present invention;

FIG. 21 is a partial schematic view of a blanking die in accordance with an embodiment of the present invention;

FIG. 22 is a partial schematic view of a loading unit according to an embodiment of the present invention;

FIG. 23 is a rear perspective view of a waste removal device according to an embodiment of the present invention;

FIG. 24 is a front perspective view of a waste removal device in accordance with an embodiment of the present invention;

FIG. 25 is a schematic diagram of a removing unit according to an embodiment of the present invention.

Description of reference numerals:

100-fixing frame, 110-elastic sheet, 120-waste material, 130-through hole,

200-a welding device for welding the metal wire,

210-a rotating disk, which is,

211-product pick and place position, 212-solder loading position, 213-welding fixing position, 214-waste removal position,

220-welding the bracket, namely welding the bracket,

221-welding auxiliary structure, 2211-protective plate, 2212-welding hole, 2213-welding cylinder,

222-drawing auxiliary structure, 2221-pressing plate, 2222-drawing cylinder, 2223-first pressing part, 2224-second pressing part,

223-a welding device for welding the metal wire,

230-a fixed structure for the movement of the support,

231-fixed seat, 2311-fixed groove, 2312-mounting groove, 232-floating block, 2321-connecting hole, 233-floating seat, 2331-welding connecting column, 234-welding positioning pin, 235-longitudinal return spring, 236-welding guide column,

300-a product pick-and-place device,

310-material storage unit, 311-longitudinal guide rail, 312-lifting platform, 313-tray positioning plate, 314-positioning cylinder, 315-transition platform, 316-sensor,

320-material turnover unit, 321-rotary table, 322-first turnover plate, 323-second turnover plate, 324-turnover cylinder, 325-clamping convex block, 326-clamping groove,

330-transfer robot, 331-transfer bracket, 332-tray sucker, 333-transfer suction nozzle, 334-transfer lifting cylinder,

340-material changing structure, 341-material changing lifting cylinder, 342-material changing rotary cylinder, 343-material changing suction nozzle, 344-material changing ejector pin,

400-a feeding and blanking device for blanking,

410-a feeding unit for feeding the material to the rotary kiln,

411-material rack, 4111-material discharge shaft, 4112-winding disk, 4113-winding motor,

412-a guide structure, 4121-a limit guide plate, 4122-a paper guide rod, 4123-a material guide rod, 4124-a first detection rod, 4125-a second detection rod,

420-a blanking unit for blanking out the material,

421-a blanking die, 4211-an upper template, 4212-a blanking hole, 4213-a pre-punching hole, 4214-a lower template, 4215-a blanking channel, 4216-a clearance elastic sheet, 4217-a limiting needle, 4218-a positioning hole and 4219-a pushing hole,

422-blanking mechanism, 4221-blanking seat, 4222-blanking punch, 4223-blanking positioning pin, 4224-pre-blanking punch, 4225-blanking cylinder,

423-pushing mechanism, 4231-pushing seat, 4232-pushing cylinder, 4233-pushing block, 4234-pushing needle, 4235-blanking connecting column,

424-a support table, the support table,

425-a waste bin for the waste material,

430-a feeding unit for feeding the materials,

431-X axis module, 4311-material receiving block, 4312-material receiving cylinder, 4313-fixed column,

432-Y axis module, 4321-feeding lifting cylinder, 4322-feeding plate, 4323-feeding suction nozzle,

500-a waste removal device for removing waste,

510-a sliding table cylinder, and a sliding table,

520-driving unit, 521-driving seat, 522-driving cylinder, 523-U-shaped block, 524-longitudinal limiting spring, 525-limiting guide post,

530-pulling out component, 531-clamper, 532-finger cylinder seat, 5321-limiting part, 533-finger cylinder,

540-connecting seat, 541-limiting plate, 5411-bump, 542-limiting block and 543-limiting cylinder.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In the present invention, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are all based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element of the present invention must have a specific orientation, and thus, should not be construed as limiting the present invention.

Examples

With reference to fig. 1 to 4, the present invention discloses a welding machine, which is mainly used for welding and fixing a spring plate 110 to a fixing frame 100 to realize full-automatic welding operation, and a welded finished product is shown in fig. 1. In order to ensure the welding efficiency and balance the design limitation of the equipment, in the embodiment, the welding machine simultaneously processes and welds three groups of products, that is, the number of the structural components related to the welding machine is three. Of course, the number is not a unique value and can be changed according to actual requirements.

With reference to fig. 3 to 25, a welding machine includes a work platform and a control system for controlling the whole welding machine to work, the work platform is provided with a welding device 200, a product pick-and-place device 300, a feeding and blanking device 400, and a waste removing device 500, the work platform is further provided with a protection frame (not shown in the figure) for enclosing and protecting all the devices, and structures such as some display devices and operation components in the control system are arranged on the protection frame.

The welding device 200 comprises a turntable 210 and a welding support 220 positioned above the turntable 210, wherein a product taking and placing position 211, an elastic sheet 110 feeding position, a welding fixing position 213 and a waste removing position 214 are sequentially arranged in the circumferential direction of the turntable 210, four fixing structures 230 are uniformly distributed in the circumferential direction of the turntable 210, the four fixing structures 230 correspond to the product taking and placing position 211, the elastic sheet 110 feeding position, the welding fixing position 213 and the waste removing position 214 one by one, a welder 223 corresponding to the welding fixing position 213 is arranged on the welding support 220, and the welder 223 is a laser welder 223 and is driven by an air cylinder to move up and down;

the product taking and placing device 300 is arranged corresponding to the product taking and placing position 211 and is used for taking down the finished product on the product taking and placing position 211 and placing the fixing frame 100 to be welded to the product taking and placing position 211;

the feeding and blanking device 400 is arranged corresponding to the feeding position of the elastic sheet 110 and is used for blanking the elastic sheet 110 on the material roll and feeding the material to the feeding position of the elastic sheet 110;

the waste removing device 500 is disposed corresponding to the waste removing position 214, and is used for removing the waste 120 on the shrapnel 110.

As shown in fig. 3 to fig. 6, a motor for driving the turntable 210 to rotate is further disposed below the turntable. The turntable 210 rotates in turn along the directions of the product picking and placing position 211, the spring plate 110 feeding position, the welding and fixing position 213 and the waste removing position 214, and rotates 90 degrees at each time, and for a fixing structure 230, the product picking and placing position 211, the spring plate 110 feeding position, the welding and fixing position 213 and the waste removing position 214 are switched in turn.

At the product pick-and-place position 211, the welded finished product is taken off from the fixing structure 230 by the product pick-and-place device 300, and the fixing frame 100 to be welded is placed into the fixing structure 230; loading materials on the elastic sheet 110, placing the elastic sheet 110 on the fixing structure 230 in a matching manner through the feeding and blanking device 400, wherein the elastic sheet 110 corresponds to the welding position of the fixing frame 100, the feeding and blanking device 400 is used for unfolding a material roll wound into a coil into a material strip and blanking the elastic sheet 110 required by welding from the material strip, a plurality of through holes 130 convenient to process are formed in two sides of the material strip, in addition, for facilitating subsequent processing, the elastic sheet 110 blanked by the feeding and blanking device 400 is also provided with partial waste materials 120, and the states before and after the material strip is blanked are shown in fig. 2; in the welding fixing position 213, the elastic sheet 110 and the fixing frame 100 are welded and fixed by a welder 223 of the welding device 200, and in order to assist welding, the welding support 220 is further provided with a welding auxiliary structure 221 corresponding to the welding fixing position 213; at the scrap removing position 214, the excess scrap 120 on the elastic sheet 110 is removed by the scrap removing device 500, and in order to assist in removing the scrap 120, the welding support 220 is further provided with a material removing auxiliary structure 222 corresponding to the scrap removing position 214.

As shown in fig. 6 to 10, the fixing structure 230 includes a fixing base 231, and at least one fixing groove 2311 for fixing and placing the fixing frame 100 and a floating assembly corresponding to the fixing groove 2311 one to one and used for fixing and placing the elastic sheet 110 are disposed on the fixing base 231. The fixing seat 231 is fixed at the edge of the turntable 210, and the fixing groove 2311 is located on the upper surface of the fixing seat 231. In this embodiment, three fixing grooves 2311 are formed in one fixing seat 231, and three corresponding floating assemblies are provided. When the fixing frame 100 is correspondingly disposed on the fixing groove 2311 and the elastic piece 110 is correspondingly and fixedly disposed on the floating assembly, the welding portion of the fixing frame 100 and the elastic piece 110 is correspondingly disposed.

Wherein, the outer side wall of the fixed seat 231 is provided with a mounting groove 2312, and the floating assembly is mounted in the mounting groove 2312. The mounting groove 2312 is formed on a side wall of the fixing seat 231 facing the outside of the turntable 210, and the floating assembly moves up and down in the mounting groove 2312.

The floating assembly comprises a floating block 232, a floating seat 233, a welding positioning pin 234 and a plurality of longitudinal reset springs 235, wherein the floating block 232 is provided with a longitudinal connecting hole 2321, the floating seat 233 is positioned below the floating block 232 and the top end of the floating block 232 is provided with an embedded welding connecting column 2331 in the connecting hole 2321, the bottom end of the welding positioning pin 234 is fixedly connected with the floating seat 233, the top end of the welding positioning pin movably penetrates through the floating block 232 and upwards penetrates out of the floating block 232, and the bottom ends of the floating block 232 and the floating seat 233 are connected with the fixed seat 231 through the longitudinal reset springs 235.

The number of the positioning columns is three, and the number and the arrangement of the positioning columns are designed according to the structures of the fixing frame 100 and the elastic sheet 110. When the fixing frame 100 is placed on the fixing groove 2311, one of the welding positioning pins 234 (the part of the welding positioning pin 234 protruding out of the surface of the floating block 232) is correspondingly clamped, the part of the fixing frame 100 clamped into the positioning column is also the part welded with the elastic sheet 110, and the three welding positioning pins 234 are correspondingly clamped when the elastic sheet 110 is placed. Due to the arrangement of the welding positioning pins 234, the fixing frame 100 and the elastic sheet 110 can be accurately positioned so as to facilitate subsequent processing, and in addition, the welding positioning pins 234 have a guiding effect on the up-and-down floating of the floating seat 233, so that the floating seat 233 can move more stably. The longitudinal return spring 235 keeps the slider 232 and the floating seat 233 at their upper limit positions while driving the slider 232 and the floating seat 233 to return upward at some time.

The floating assembly further includes a welding guide post 236, and the welding guide post 236 penetrates through the floating block 232 and is fixedly connected to the fixed seat 231. The slider 232 rides up and down along the weld guide posts 236 and moves more smoothly.

At the product pick-and-place position 211, the welded finished product is taken off from the fixing structure 230 by the product pick-and-place device 300, and the fixing frame 100 to be welded is placed in the fixing groove 2311 of the fixing structure 230, and the welding position (having a through hole 130) is correspondingly clamped into one of the welding positioning pins 234. The elastic sheet 110 is placed on the material loading position, the elastic sheet 110 is matched with the position of the floating assembly of the fixing structure 230, and the position corresponds to the welding position of the fixing frame 100. The through holes 130 of the elastic sheet 110 are correspondingly clamped into the welding positioning pins 234 one by one, so that the positioning and fixing are realized.

As shown in fig. 9, the elastic piece 110 and the fixing frame 100 are welded and fixed to each other at the welding and fixing station 213 by the welding device 200. The welding auxiliary structure 221 includes a horizontal protection plate 2211 corresponding to the fixing structure 230, and a welding cylinder 2213 for driving the protection plate 2211 to move up and down, where the protection plate 2211 is provided with at least one welding hole 2212, and side walls of the welding hole 2212 are all communicated with an air inlet channel.

The number of the welding holes 2212 is equal to the number of the fixing grooves 2311 and the number of the floating assemblies, namely three, the welding holes 2212 correspond to the welding positions of the elastic sheet 110 and the fixing frame 100, and the welder 223 welds the elastic sheet 110 and the fixing frame 100 through the fixing holes. The protection plate 2211 is designed to match with the upper surface of the fixing seat 231, the welding cylinder 2213 drives the protection plate 2211 to move downwards to be pressed on the surface of the fixing seat 231, meanwhile, the elastic sheet 110 and the fixing frame 100 are correspondingly pressed, and meanwhile, the welding hole 2212 corresponds to the welding position. The inlet channel communicated to the side wall of the welding hole 2212 is connected with an external gas source, and when the welder 223 is welded through the welding hole 2212, the external gas source inputs protective gas into the welding hole 2212 from the side wall of the welding hole 2212 through the inlet channel so as to protect a welding spot and guarantee welding quality. The protective gas is preferably nitrogen or other suitable gas.

As shown in fig. 10, at the scrap removing position 214, the excess scrap 120 on the elastic sheet 110 is removed by the scrap removing apparatus 500. The material drawing auxiliary structure 222 includes a horizontal pressing plate 2221 corresponding to the fixing structure 230, and a material drawing cylinder 2222 for driving the pressing plate 2221 to move up and down, wherein the bottom surface of the pressing plate 2221 is provided with pressing portions corresponding to the floating assemblies one to one. The pressing part includes a first pressing part 2223 and a second pressing part 2224 located below the first pressing part 2223, the second pressing part 2224 is disposed corresponding to the connection hole 2321, and the first connection part is disposed corresponding to the slider 232.

The pressing plate 2221 moves downward, and the second pressing part 2224 can extend downward into the connecting hole 2321, so as to press the floating seat 233 in the connecting hole 2321 and move downward, and the welding positioning pin 234 moves downward at the same time, so that the top end of the welding positioning pin 234 is separated from the fixing frame 100 and the elastic sheet 110 and retracts into the floating block 232; then, the first press portion 2223 presses the top end of the floating block 232 and makes it move downward, so that the elastic sheet 110 is suspended, and a space is provided for the waste material removing device 500 to clamp and break the waste material 120 on the elastic sheet 110. The pressing plate 2221 is designed to match with the upper surface of the fixing base 231, the material pulling cylinder 2222 drives the pressing plate 2221 to move downward to be pressed against the surface of the fixing base 231, and meanwhile, the elastic piece 110 and the fixing frame 100 are correspondingly pressed, and the waste material 120 of the elastic piece 110 is partially suspended. The scrap remover 500 grasps and breaks the scrap 120 of the resilient piece 110, thereby removing the scrap 120 of the resilient piece 110.

With reference to fig. 3 to 4 and 11 to 15, the product taking and placing device 300 includes a material storage unit 310, a material turning unit 320 and a material transplanting unit, and the material turning unit 320 is disposed corresponding to the product taking and placing position 211. The material storage unit 310 stores a plurality of material trays, the material trays are used for storing the fixing frame 100 to be welded and finished products after welding, and grooves for matching and placing materials are formed in the material trays; the material turning unit 320 is used for turning the corresponding material by 180 degrees, namely, the top surface and the bottom surface are interchanged, and the material turning unit 320 is arranged because the storage state of the fixing frame 100 in the material tray is just opposite to the required state when the fixing frame is welded; the material transferring unit is used for transferring all the materials among the material storage unit 310, the material overturning unit 320 and the product picking and placing position 211.

As shown in fig. 12 to fig. 13, the material transferring unit includes a transferring robot 330 for exchanging materials between the material storing unit 310 and the material turning unit 320 (transferring the to-be-welded fixing frame 100 in the material storing unit 310 to the material turning unit 320, and simultaneously transferring the finished product in the material turning unit 320 to the material storing unit 310), and a material changing structure 340 for exchanging materials between the material turning unit 320 and the product placing position 211 (transferring the to-be-welded fixing frame 100 in the material turning unit 320 to the product placing position 211, and simultaneously transferring the finished product in the product placing position 211 to the material turning structure), the transferring robot 330 includes a transferring jig, the transferring jig includes a transferring support 331, a tray suction cup 332 disposed at the bottom end of the transferring support 331, and two sets of transferring suction nozzles 333 symmetrically disposed at the center, a transferring lifting cylinder 334 for driving the transferring suction nozzle 333 to lift is disposed on the transferring support 331, and the lifting cylinders 334 and the suction nozzles 333 are disposed in one-to-one correspondence.

The material changing structure 340 comprises a material changing lifting cylinder 341, a material changing rotary cylinder 342 driven by the material changing lifting cylinder 341 to move up and down, two groups of material changing suction nozzles 343 driven by the material changing rotary cylinder 342 to rotate, and a plurality of material changing ejector pins 344, wherein the two groups of material changing suction nozzles 343 are arranged in a central symmetry manner, the material changing ejector pins 344 are located on one side of the material changing suction nozzles 343 in a one-to-one correspondence manner, and each material changing suction nozzle 343 is provided with a cylinder for independently controlling the material changing suction nozzle to move up and down. The number of the group of material changing suction nozzles 343 and the number of the group of transferring suction nozzles 333 are three. When the material changing suction nozzle 343 picks up the finished product at the product pick-and-place position 211, the material changing suction nozzle 343 and the material changing ejector pin 344 move downward at the same time, the material changing ejector pin 344 presses the floating seat 233 to move downward, and the welding positioning column moves downward along with the floating seat to separate from the elastic sheet 110 and the fixing frame 100, so that the material changing suction nozzle 343 picks up the finished product.

As shown in fig. 15, the material storage unit 310 includes at least two lifting structures, each of the lifting structures includes a longitudinal guide rail 311, a lifting platform 312 for placing a material tray, and a lifting motor for driving the lifting platform 312 to move up and down along a longitudinal rail, and the working platform is provided with a sensor 316, a material tray positioning plate 313 for pressing the material tray from the side, and a positioning cylinder 314 for driving the material tray positioning plate 313 to move laterally.

In this embodiment, the number of the lifting structures is two, a plurality of trays are stacked on the lifting platform 312, and the trays in the two lifting structures are used for storing finished products after welding and the fixing frame 100 to be welded respectively. When no material exists in the material tray for placing the fixed frame 100, the empty material tray can be sucked by the material tray in the transfer robot 330 and transferred and sent, the sensor 316 detects that the empty material tray is removed, the lifting platform 312 rises for a material tray thickness distance, and the positioning cylinder 314 drives the material tray positioning plate 313 to move transversely to press the material tray for positioning; when placing the finished product in the charging tray and putting the material, can be shifted empty charging tray by the transfer robot 330 and pile up to its top, when sensor 316 detected that there is the charging tray to pile up, lift platform 312 descends a charging tray thickness distance, and location cylinder 314 drive charging tray locating plate 313 sideslip is in order to compress tightly the charging tray location. The empty tray of the finished product position comes from the tray for placing the frame 100 to be fixed, and in order to prevent the time point of the empty tray of the frame 100 from being inconsistent with the time point of the full tray of the finished product position, a transition platform 315 is further arranged on the working platform, when the frame 100 is empty and the finished product position is not full, the empty tray is placed on the transition platform 315, and after the finished product position is full, the empty tray on the transition platform 315 is stacked to the finished product position.

As shown in fig. 14, the material turning unit 320 includes a rotating platform 321, two turning structures, and the two turning structures are centrally and symmetrically disposed at two ends of the rotating platform 321, the turning structures include a first turning plate 322, a second turning plate 323 and two turning cylinders 324, which can turn over and stack each other, and respectively drive the first turning plate 322 and the second turning plate 323 to turn over, the first turning plate 322 is provided with a plurality of fastening protrusions 325 for fastening the fixed frame 100, and the second turning plate 323 is provided with fastening grooves 326 designed in a one-to-one correspondence with the fastening protrusions 325.

Wherein, the cylinder that its rotation 180 degrees was driven to revolving stage 321 below is equipped with, and revolving stage 321 all rotates 180 degrees along a direction at every turn, and two flip structure position interchange positions, and one of them flip structure realizes the material with moving the cooperation of carrying robot 330 and moving, and another flip structure realizes the material with the cooperation of reloading structure 340 and moves and carry. Specifically, the number of the engaging protrusions 325 and the number of the engaging grooves 326 are three, and in a normal state, the first flipping plate 322 and the second flipping plate 323 are located at the same horizontal position, and the engaging protrusions 325 and the engaging grooves 326 are located on the top surface. The transfer robot 330 matches the fixing frame 100 to be welded to the engaging protrusion 325 of the first flipping plate 322, and the engaging protrusion 325 is designed corresponding to the hole of the fixing frame 100, so that the fixing frame 100 can be accurately positioned and placed. When the rotating platform 321 rotates, the second flipping plate 323 is flipped over and stacked to the upper side of the first flipping plate 322, and then the first flipping plate 322 and the second flipping plate 323 are flipped over 180 degrees in opposite directions at the same time, at this time, the fixing frame 100 correspondingly falls into the engaging groove 326 of the second flipping plate 323 under the action of gravity, and then the second flipping plate 323 is flipped over 180 degrees and reset, so that the fixing frame 100 on the first flipping plate 322 is flipped over to the second flipping plate 323, thereby completing the flipping of the fixing frame 100. In the process, the other turnover structure completes the turnover of the finished product on the second turnover plate 323 to the first turnover plate 322, and the principle is the same.

As shown in fig. 3 to 4 and 16 to 22, the feeding and blanking device 400 is mainly used to unwind a material roll wound into a roll into a material strip and blank the elastic sheet 110 required for welding from the material strip so as to prepare for subsequent welding. Meanwhile, the cloth belt in the material roll is wound and recovered, and the residual waste material 120 after punching is cut off and collected and recovered.

Pay-off blanking device 400 includes pay-off unit 410, blanking unit 420 and the material loading unit 430 that sets gradually along the X axle direction, material loading unit 430 with shell fragment 110 material loading level corresponds, pay-off unit 410 for expand into the material area with the material book and carry to blanking unit 420, the strap that will roll in the material book simultaneously is convoluteed and is retrieved. The cloth winding machine specifically comprises a material rack 411, wherein a horizontally arranged material discharging shaft 4111, a winding disc 4112 for winding and recovering cloth belts, and a winding motor 4113 for driving the winding disc 4112 to rotate are arranged on the material rack 411. Wherein, the material roll is correspondingly placed in the material discharging shaft 4111, the winding motor 4113 is a driving motor for driving the winding disc 4112 to rotate, and the driving motor rotates to drive the winding disc 4112 and the material discharging shaft 4111 to rotate synchronously;

the blanking unit 420 is configured to receive the material tape sent by the feeding unit 410, blank the elastic sheet 110 on the material tape, and break and recycle the waste material 120 after blanking. The blanking mechanism is located on one side of the feeding unit 410, and includes a blanking die 421, a blanking mechanism 422 capable of moving up and down, and a pushing mechanism 423 for driving the material belt to move transversely in the blanking die 421, wherein the blanking mechanism 422 is located above the blanking die 421, and a blanking punch 4222 is arranged on the blanking mechanism 422. The material belt is located in the blanking die 421, the blanking mechanism 422 punches the elastic pieces 110 on the material belt in the blanking die 421, and the pushing mechanism 423 drives the material belt to move transversely in the blanking die 421 so as to blank the elastic pieces 110 one by one;

the feeding unit 430 is configured to receive the elastic sheet 110 blanked from the feeding belt, and move and carry the elastic sheet 110 to the solder feeding position 212, and includes an X-axis module 431, a Y-axis module 432, multiple sets of receiving structures mounted on the X-axis module 431, and a feeding structure mounted on the Y-axis module 432, where the Y-axis module 432 and the blanking unit 420 correspond to two ends of the X-axis module 431 respectively.

As shown in fig. 16 to 17, the material rack 411 is further provided with a guiding structure 412, and the guiding structure 412 is used for guiding and limiting the material belt and the cloth belt. The guiding structure 412 and the winding disc 4112 are both located below the discharging shaft 4111, and the guiding structure 412 is located on a side of the stack 411 close to the blanking unit 420.

The guide structure 412 comprises two limiting guide plates 4121, a guide rod and a detection rod which are fixed on the material rack 411, the two limiting guide plates 4121 are arranged in parallel, a limiting channel is formed between the two limiting guide plates 4121, the detection rod comprises a paper guide rod 4122 which is positioned above the winding disc 4112, and two material guide rods 4123 which are respectively positioned on two sides of the limiting guide plates 4121, and the detection rod comprises a first detection rod 4124 which is positioned below a connecting line of the two material guide rods 4123, and a second detection rod 4125 which is positioned on one side of the material rack 411 close to the blanking unit 420.

The cloth belt winds on the winding disc 4112 after passing through the paper guide 4122, and the paper guide 4122 can ensure the winding tension of the cloth belt and ensure the smooth winding. The material belt passes through the limiting channel between the two limiting guide plates 4121, and the limiting guide plates 4121 can prevent the material belt from floating. The detecting rod is a negative rod, and the material belt passes under the two material guiding rods 4123 and passes over the second detecting rod 4125 to be output to the blanking unit 420. When the first detecting rod 4124 detects that the material strip hits the first detecting rod 4124, which indicates that the feeding speed of the feeding unit 410 is greater than the moving speed of the material strip in the blanking unit 420, the winding motor 4113 stops rotating until the first detecting rod 4124 no longer detects that the material strip hits the first detecting rod 4124; when the second detecting lever 4125 detects that no tape passes, indicating that the feeding unit 410 has no tape out, there is a possibility that the roll is used up and needs to be replaced or the feeding unit 410 malfunctions.

The blanking die 421 includes an upper die plate 4211, a lower die plate 4214, and a gap elastic piece 4216 located between the upper die plate 4211 and the lower die plate 4214, the upper die plate 4211 and the lower die plate 4214 enclose and form a transverse through blanking channel, the upper die plate 4211 and the lower die plate 4214 are respectively provided with a blanking hole 4212 and a blanking channel 4215 corresponding to the blanking punch 4222, and the blanking hole 4212 and the blanking channel 4215 are both communicated with the blanking channel. The blanking die 421 is provided with a plurality of limit pins 4217 for limiting the two sides of the material belt, and the limit pins 4217 are fixedly connected with the upper die plate 4211 and the lower die plate 4214.

The material belt passes between the upper template 4211 and the lower template 4214, two sides of the material belt respectively move along the limit pins 4217, and the elastic sheet 110 part correspondingly passes through the blanking passage. The blanking punch 4222 punches the material strip downward through a blanking hole 4212, and the blanked component falls through a blanking passage 4215. The two punching punches 4222 are used for punching the spring plate 110 and punching the scrap 120.

The blanking mechanism 422 comprises a blanking seat 4221 positioned above the blanking die 421 and a blanking cylinder 4225 for driving the blanking seat 4221 to move up and down, and the blanking punch 4222 is arranged at the bottom end of the blanking seat 4221. The bottom end of the blanking seat 4221 is provided with a plurality of blanking positioning pins 4223, and the blanking die 421 is provided with positioning holes 4218 corresponding to the blanking positioning pins 4223. The bottom end of the blanking seat 4221 is provided with a pre-punching punch 4224, the blanking die 421 is provided with a pre-punching hole 4213 corresponding to the pre-punching punch 4224, the pre-punching hole 4213 is located on the upper die plate 4211, the lower die plate 4214 is also provided with a blanking passage 4215 corresponding to the pre-punching hole 4213, the pre-punching hole 4213 is also communicated with the blanking passage, and the pre-punching punch 4224 is located behind the blanking punch 4222 along the moving direction of the material belt.

The positioning holes 4218 penetrate through the upper template 4211 and the lower template 4214, and the positioning holes 4218 correspond to the through holes 130 on the two sides of the material belt. The pre-punch 4224 is located behind the blanking punch 4222, that is, the material strip is pre-punched by the pre-punch 4224 and then is blanked by the blanking punch 4222, and the blanking position of the pre-punch 4224 is close to the blanking position of the blanking punch 4222, and is pre-punched for better blanking. The blanking cylinder 4225 drives the blanking seat 4221 to move downwards, the blanking punch 4222, the blanking positioning pin 4223 and the pre-punching punch 4224 all move downwards along with the blanking cylinder, the blanking positioning pin 4223 penetrates through the corresponding positioning hole 4218 and the corresponding through hole 130 in the material strip to realize positioning and fixing between the material strip and the blanking die 421, and the pre-punching punch 4224 and the blanking punch 4222 perform corresponding pre-punching and blanking on the material strip.

The pushing mechanism 423 is located below the blanking die 421, and along the traveling direction of the material tape, the pushing mechanism 423 is located behind the blanking punch 4222, that is, the pushing mechanism 423 is located on a side of the blanking unit 420 close to the feeding unit 410. The pushing mechanism 423 comprises a pushing seat 4231 moving up and down synchronously with the blanking mechanism 422, a pushing cylinder 4232 arranged on the pushing seat 4231, a pushing block 4233 driven by the pushing cylinder 4232 to move transversely, and a pushing needle 4234 vertically arranged on the pushing block 4233, and the blanking die 421 is provided with a strip-shaped pushing hole 4219 corresponding to the pushing needle 4234.

The pushing seat 4231 is fixedly connected with the blanking seat 4221 through two blanking connecting columns 4235, the blanking connecting columns 4235 penetrate through the upper template 4211 and the lower template 4214 and can move up and down relative to the upper template 4211 and the lower template 4214, and when the punching cylinder drives the blanking seat 4221 to move up and down, the pushing seat 4231 moves up and down along with the punching cylinder. The pushing hole 4219 corresponds to the through hole 130 on the side edge of the tape, the pushing needle 4234 can be inserted into the through hole 130 of the tape upwards through the pushing hole 4219, and the distance for the pushing cylinder 4232 to drive the pushing block 4233 to move is the distance between two adjacent elastic sheets 110 on the tape.

The blanking cylinder 4225 drives the blanking seat 4221 to move downwards, the blanking punch 4222, the blanking positioning needle 4223, the pre-punching punch 4224 and the whole pushing mechanism 423 move downwards along with the blanking seat, the pre-punching punch 4224 and the blanking punch 4222 perform corresponding pre-punching and blanking on the material belt, the pushing needle 4234 in the pushing mechanism 423 is separated from the material belt through hole 130 downwards, and then the pushing cylinder 4232 drives the pushing needle 4234 to move along the opposite direction of the advancing of the material belt; after blanking, the blanking cylinder 4225 drives the blanking seat 4221 to move upwards, the blanking punch 4222, the blanking positioning needle 4223, the pre-blanking punch 4224 and the whole pushing mechanism 423 move upwards along with the blanking punch 4222, the blanking positioning needle 4223 and the pre-blanking punch 4224 all separate from the material belt upwards, the pushing needle 4234 in the pushing mechanism 423 correspondingly inserts upwards into the material belt through hole 130, then the pushing cylinder 4232 drives the pushing needle 4234 to move along the advancing direction of the material belt, then the blanking cylinder 4225 drives the blanking seat 4221 to move downwards, and the next blanking operation is performed, and the process is repeated.

In this embodiment, a supporting platform 424 for the material belt is further disposed between the blanking die 421 and the second detecting rod 4125, so that the material belt can better enter the blanking die 421.

In this embodiment, a waste bin 425 with an open upper end is further disposed below the blanking die 421, and is used for collecting the waste material 120 which is punched and simultaneously broken by the recycled material tape.

The feeding unit 430 includes an X-axis module 431 and a plurality of receiving structures installed on the X-axis module 431, the receiving structures include a receiving block 4311 extending into the blanking channel 4215 and a receiving cylinder 4312 driving the receiving block 4311 to extend into or exit from the blanking channel 4215, and the receiving block 4311 is provided with fixing posts 4313.

The X-axis module 431 is located at one side of the loading position and blanking unit 420 of the elastic sheet 110, and drives the receiving structure to reciprocate along the transverse direction thereof, and the loading position and blanking unit 420 of the elastic sheet 110 is switched. Connect the material quantity of structure to be three groups, can certainly also set up according to actual demand. When the material receiving structure moves to the blanking unit 420, and a blanking punch 4222 punches downwards, the material receiving cylinder 4312 drives the material receiving block 4311 to extend into the blanking channel 4215, the blanking punch 4222 punches the elastic sheet 110 to just fall down to the material receiving block 4311 and correspondingly clamp the fixed column 4313, the X-axis module 431 moves transversely until the three material receiving structures all receive the elastic sheet 110, and the X-axis module 431 drives the material receiving structure to move to the material loading position of the elastic sheet 110.

The material receiving structure comprises a material receiving block 4311 capable of extending into the blanking passage 4215 and a material receiving cylinder 4312 for driving the material receiving block 4311 to extend into or withdraw from the blanking passage 4215, the material receiving block 4311 is provided with a fixing column 4313, and the material feeding structure comprises a material feeding lifting cylinder 4321 arranged on the Y-axis module 432, a material feeding plate 4322 driven to lift by the material feeding lifting cylinder 4321 and a material feeding suction nozzle 4323 arranged at the bottom end of the material feeding plate 4322. When the material receiving structure moves to the blanking unit 420, and a blanking punch 4222 performs blanking downwards, the material receiving cylinder 4312 drives the material receiving block 4311 to extend into the blanking channel 4215, the blanking punch 4222 punches the elastic sheet 110 to just fall down to the material receiving block 4311 and correspondingly clamp the fixed column 4313, the X-axis module 431 moves transversely until the three material receiving structures all receive the elastic sheet 110, and the X-axis module 431 drives the material receiving structure to move to the solder loading position 212. The feeding structure correspondingly sucks the elastic pieces 110 on the receiving structure through the feeding nozzle 4323, and correspondingly places the three elastic pieces 110 on the feeding nozzle 4323 on the floating assembly of the solder feeding position 212 through the Y-axis module 432.

As shown in fig. 3 to 4 and 23 to 25, for convenience of description, the scrap removing unit 214 is located in front of the scrap removing device 500, and the front-back direction of the scrap removing device 500 is the same as the Y-axis direction of the feeding and blanking device 400.

The waste material removing device 500 comprises a sliding table cylinder 510 capable of moving back and forth, a driving unit 520 arranged on the sliding table cylinder 510, and a removing unit arranged on the driving unit 520, wherein the driving unit 520 comprises a driving component for driving the removing unit to move up and down, the removing unit comprises at least one group of removing components 530, and the removing components 530 comprise a clamp holder 531 positioned at the front side of the removing unit and transversely arranged.

The scrap removing device 500 is disposed at one side of the welding device 200, and specifically, the welding device 200 is located in front of the scrap removing device 500, that is, at one side of the removing device where the clamper 531 is disposed. The sliding table cylinder 510 moves forward to drive the holder 531 to extend into the welding device 200, the holder 531 clamps the waste material 120 to be removed, and the driving assembly drives the removing unit (the holder 531) to move up and down, so that the waste material 120 is broken off and removed from the elastic sheet 110.

The driving unit 520 includes a driving seat 521 disposed on the sliding table cylinder 510, the driving assembly is disposed on the driving seat 521, and a waste material 120 box is disposed in front of the driving seat 521. Specifically, the driving seat 521 is disposed on the cylinder body of the sliding table cylinder 510 and can move back and forth along with the cylinder body of the sliding table cylinder 510, the driving assembly is disposed at the rear portion of the driving seat 521, and the front portion of the driving seat 521 is provided with a waste material 120 box (not shown in the figure) with an open upper end, and the waste material 120 box is correspondingly disposed below the gripper 531 and used for collecting the waste material 120 broken and removed by the gripper 531.

The drive assembly comprises a vertically arranged drive cylinder 522 and a transversely arranged U-shaped block 523, a piston rod of the drive cylinder 522 is located below the pulling unit, the bottom of the U-shaped block 523 is fixedly connected with the drive cylinder 522, the top of the U-shaped block 523 is located above the pulling unit, and a vertical limit spring 524 is arranged between the top of the U-shaped block 523 and the pulling unit. Specifically, the U-shaped block 523 is located at the rear side of the pulling unit, the bottom of the U-shaped block 523 is fixedly connected to the cylinder bodies of the driving seat 521 and the driving cylinder 522, and the piston rod of the driving cylinder 522 upwardly penetrates through the U-shaped block 523. The piston rod of the driving cylinder 522 moves upwards to drive the pulling unit to move upwards, the piston rod of the driving cylinder 522 moves downwards, the pulling unit moves downwards to reset under the reset action of the longitudinal limiting spring 524, and thus the pulling unit moves up and down.

The driving assembly further comprises a limiting guide post 525, the limiting guide post 525 penetrates through the pulling unit and is fixedly connected with the top of the U-shaped block 523 and the bottom of the U-shaped block 523, and the longitudinal limiting spring 524 is sleeved on the periphery of the limiting guide post 525. Specifically, the number of the limiting guide pillars 525 and the number of the longitudinal limiting springs 524 are two, and the up-and-down motion of the pulling unit is more stable due to the arrangement of the limiting guide pillars 525.

The removing assembly 530 includes a finger cylinder base 532 and a finger cylinder 533 located on the finger cylinder base 532, the holder 531 includes two clamping arms, and the two clamping arms are respectively disposed on two clamping jaws of the finger cylinder 533. Specifically, the finger cylinder 533 is transversely disposed, the clamping jaw thereof is located at the front end, and the two clamping jaws are disposed up and down. The two clamping jaws move oppositely to drive the two clamping arms of the clamp holder 531 to clamp; the two clamping jaws move back to drive the two clamping arms to separate from each other.

The pulling unit further includes a connecting base 540, the finger cylinder base 532 is disposed on the connecting base 540 in a manner of moving left and right, a limiting plate 541 and a limiting block 542 are disposed on two sides of the finger cylinder base 532 respectively (the limiting block 542 and the limiting plate 541 are disposed on the left and right sides of the finger cylinder base 532 respectively), and a limiting spring (not shown in the figure) is disposed between the limiting block 542 and the finger cylinder base 532. Specifically, the rear end of the connecting seat 540 is inserted into the opening of the U-shaped block 523 (between the bottom and the top of the U-shaped block 523), and the position-limiting guide pillar 525 is disposed through the connecting seat 540. The top surface of the connecting seat 540 is provided with a slide rail which is transversely arranged at the left and the right, and the bottom surface of the finger cylinder seat 532 is correspondingly provided with a slide groove which is matched with the slide rail. The limiting plates 541 and the limiting blocks 542 are designed such that the clamper 531 can be maintained at one position in the left-right direction. When the waste material removing device 500 removes the waste material 120, all the fork assemblies operate simultaneously, but it cannot be guaranteed that the grippers 531 in each fork assembly break the waste material 120 at the same time, and only after all the waste material 120 are broken and removed, the driving assembly stops driving the removing unit to move up and down. The holder 531 is maintained at one position in the left-right direction, and the scrap 120 broken first is prevented from being scraped against the spring 110 during the up-and-down movement, so that the spring 110 can be protected.

In this embodiment, the plucking elements 530 are arranged in a linear array from left to right, and the number of the plucking elements 530 is three. All the limiting plates 541 are integrally formed, the connecting seat 540 is provided with a limiting cylinder 543 for driving the limiting plates 541 to move left and right, and the limiting blocks 542 are arranged in one-to-one correspondence with the finger cylinder seats 532.

The limiting plate 541 is located at the front side of the connecting seat 540, a limiting portion 5321 extends from the front end of the finger cylinder seat 532, and the upper end of the limiting plate 541 is provided with protruding blocks 5411 which are in one-to-one correspondence with the limiting portion 5321.

The working process of the waste removing device 500 is as follows: the sliding table cylinder 510 drives the driving unit 520 and the removing unit to move forward until the holder 531 is located at a corresponding position of the welding device 200 where the waste material 120 needs to be removed, the floating seat 233 and the welding positioning pin 234 move downward under the action of the material removing auxiliary structure 222, so that the waste material 120 of the elastic sheet 110 is suspended, the finger cylinder 533 drives the waste material 120 of the two clamping arm clamping jaws, the driving cylinder 522 drives the removing unit to move up and down, so that the holder 531 moves up and down to break the waste material 120, when all the waste materials 120 clamped by the holder 531 are broken, the sliding table cylinder 510 drives the driving unit 520 and the removing unit to move backward, the holder 531 withdraws from the welding device 200, the finger cylinder 533 drives the two clamping arms to open, and the removed waste material 120 falls into the waste material 120 box below.

While the invention has been described with reference to specific preferred embodiments, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the following claims. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

1. A welding machine, its characterized in that: comprises a working platform, wherein the working platform is provided with

the product taking and placing device is arranged corresponding to the product taking and placing position and is used for taking down the finished product on the product taking and placing position and placing the fixing frame to be welded to the product taking and placing position;

2. A welding machine as defined in claim 1, characterized in that: the fixing structure comprises a fixing seat, at least one fixing groove for fixedly placing a fixing frame, a floating assembly which is in one-to-one correspondence with the fixing groove and used for fixedly placing elastic pieces are arranged on the fixing seat, the floating assembly comprises a floating block, a floating seat, a welding positioning needle and a plurality of longitudinal reset springs, the floating block is provided with a connecting hole which is longitudinally arranged, the floating seat is located below the floating block and the top end of the floating block are provided with an embedded welding connecting column in the connecting hole, the bottom end of the welding positioning needle is fixedly connected with the floating seat, the top end of the floating block movably penetrates through the floating block and upwards penetrates out the floating block, and the bottom ends of the floating block and the floating seat are all connected with the fixing seat through the longitudinal reset springs.

3. A welding machine as claimed in claim 1 or 2, characterized in that: the welding device further comprises a welding auxiliary structure and a material pulling auxiliary structure which are arranged on the welding support, the welding auxiliary structure and the material pulling auxiliary structure are respectively arranged correspondingly to the welding fixing position and the waste material pulling position, the welding auxiliary structure comprises a horizontal protection plate and a welding cylinder, the horizontal protection plate is arranged correspondingly to the fixing structure, the welding cylinder drives the protection plate to move up and down, the protection plate is provided with at least one welding hole, and the side wall of each welding hole is communicated with an air inlet channel;

4. A welding machine as defined in claim 1, wherein: the product taking and placing device comprises a material storage unit, a material overturning unit and a material transplanting unit, wherein the material overturning unit and the product taking and placing position are correspondingly arranged.

5. A welding machine as claimed in claim 4, characterized in that: the material storage unit comprises at least two lifting structures, each lifting structure comprises a longitudinal guide rail, a lifting platform and a lifting motor for driving the lifting platform to move up and down along a longitudinal rail, and the working platform is provided with a sensor, a material tray positioning plate for pressing a material tray on the side surface and a positioning cylinder for driving the material tray positioning plate to move transversely;

the material transplanting unit comprises a transferring robot used for material exchange between a material storage unit and a material overturning unit, and a material changing structure used for material exchange between the material overturning unit and a product taking and placing position, wherein the transferring robot comprises a transferring jig, the transferring jig comprises a transferring support, a material disc sucker arranged at the bottom end of the transferring support, and two groups of transferring suction nozzles symmetrically arranged in the center, the transferring support is provided with a transferring lifting cylinder for driving the transferring suction nozzles to lift, the material changing structure comprises a material changing lifting cylinder, a material changing rotary cylinder driven by the material changing lifting cylinder to move up and down, two groups of material changing suction nozzles driven by the material changing rotary cylinder to rotate, and a plurality of material changing ejector pins, the two groups of material changing suction nozzles are symmetrically arranged in the center, and the material changing ejector pins are located on one side of the material changing suction nozzles in a one-to-one correspondence manner.

6. A welding machine as defined in claim 1, wherein: the feeding and blanking device comprises a feeding unit, a blanking unit and a loading unit which are sequentially arranged along the X-axis direction, the loading unit corresponds to the loading position of the elastic sheet, the feeding unit comprises a material rack, and the material rack is provided with a horizontally arranged discharging shaft, a winding disc for winding and recovering a cloth belt and a winding motor for driving the winding disc to rotate;

7. A welding machine as defined in claim 6, wherein: the blanking device is characterized in that a guide structure is further arranged on the material rack, the guide structure and the winding plate are both located below the blanking shaft, the guide structure is located on one side, close to the blanking unit, of the material rack, the guide structure comprises two limiting guide plates, a guide rod and a detection rod, the two limiting guide plates are fixed on the material rack, a limiting channel is formed between the two limiting guide plates and arranged in parallel, the detection rod comprises a paper guide rod located above the winding plate and two material guide rods located on two sides of the limiting guide plates respectively, the detection rod comprises a first detection rod located below a connecting line of the two material guide rods and a second detection rod located on one side, close to the blanking unit, of the material rack.

8. A welding machine as claimed in claim 6 or 7, characterized in that: the blanking mechanism comprises a blanking seat and a blanking cylinder, wherein the blanking seat is positioned above a blanking die, the blanking cylinder drives the blanking seat to move up and down, a blanking punch, a pre-blanking punch and a plurality of blanking positioning needles are arranged at the bottom end of the blanking seat, and the pre-blanking punch is positioned behind the blanking punch along the moving direction of the material belt;

the blanking die comprises an upper die plate, a lower die plate and a gap elastic sheet positioned between the upper die plate and the lower die plate, wherein the upper die plate and the lower die plate are enclosed to form a transversely-through blanking channel, the upper die plate is provided with a blanking hole and a pre-punching hole corresponding to a blanking punch and a pre-punching punch respectively, the lower die plate is provided with a blanking channel corresponding to the blanking hole and the pre-punching hole, the blanking hole, the pre-punching hole and the blanking channel are communicated with the blanking channel, the blanking die is provided with a positioning hole corresponding to the blanking positioning needle, the positioning hole penetrates through the upper die plate and the lower die plate, the blanking die is further provided with a plurality of limiting needles for limiting two sides of a material strip, and the limiting needles are fixedly connected with the upper die plate and the lower die plate;

the push mechanism is located the below of blanking mould, push mechanism include with the synchronous up-and-down motion's of blanking mechanism propelling movement seat, locate the propelling movement cylinder on the propelling movement seat, by the propelling movement piece of propelling movement cylinder drive sideslip, vertically locate the propelling movement needle on the propelling movement piece, the corresponding propelling movement needle of blanking mould is equipped with strip propelling movement hole.

9. A welding machine as defined in claim 8, characterized by: the material receiving structure comprises a material receiving block capable of extending into the blanking channel and a material receiving cylinder for driving the material receiving block to extend into or withdraw from the blanking channel, the material receiving block is provided with a fixed column, and the material receiving structure comprises a material loading lifting cylinder arranged on the Y-axis module, a material loading plate driven by the material loading lifting cylinder to lift and a material loading suction nozzle arranged at the bottom end of the material loading plate.

10. A welding machine as defined in claim 1, characterized in that: the waste material removing device comprises a sliding table cylinder capable of moving back and forth, a driving unit arranged on the sliding table cylinder and a removing unit arranged on the driving unit, wherein the driving unit comprises a driving seat and a driving assembly for driving the removing unit to move up and down;