CN109396867B

CN109396867B - Welding, leveling and end plate processing assembly line

Info

Publication number: CN109396867B
Application number: CN201811518003.9A
Authority: CN
Inventors: 雷德意; 汪国林; 李处齐
Original assignee: Guangzhou Deya Machinery Manufacturing Co ltd
Current assignee: Guangzhou Deya Machinery Manufacturing Co ltd
Priority date: 2018-12-12
Filing date: 2018-12-12
Publication date: 2023-11-10
Anticipated expiration: 2038-12-12
Also published as: CN109396867A

Abstract

The invention discloses a welding, leveling and end plate processing assembly line which comprises a welding unit, a leveling unit, a lathe unit, a first punching unit, a drilling and tapping unit and a second punching unit, wherein the welding unit is used for welding a notch of an annular single piece to form an end plate blank, the leveling unit is used for leveling the end plate blank, the lathe unit is used for turning the end plate blank, the first punching unit is used for punching the end plate blank, the drilling and tapping unit is used for drilling and tapping the end plate blank, and the second punching unit is used for punching the end plate blank; the conveyor is arranged to transport end plate blanks from the discharge end of a previous unit to the feed end of a next unit. Thus reducing the working time for processing the annular single piece into the end plate and improving the processing efficiency of the end plate; and connect welding unit, spiral flat unit, lathe unit, first punch press unit, drilling and tapping unit and second punch press unit through conveyer, can avoid artifical transport, reduce operator's intensity of labour, need not to store and manage semi-manufactured goods.

Description

Welding, leveling and end plate processing assembly line

Technical Field

The invention relates to a machining device for mechanical parts, in particular to a welding, leveling and end plate machining assembly line.

Background

The end plate (also called tubular pile end plate) is a disc-shaped part, is most commonly used in pipeline engineering and is used for connecting pipelines, and is usually used in pairs when in use, so that the consumption is high.

Because of the large amount of end plates, conventional end plates are cut into annular members from steel plates or forged and then machined. But these conventional end plate production processes have low productivity, high metal consumption, and high cost. In order to improve the productivity of end plates and reduce the metal consumption and cost, hot rolling and coiling are generally used for producing end plate blanks, and pages 39-42 of journal entitled "Steel", publication 1996 (9) discloses a new process for producing PHC tubular pile end plates, in which the basic process of the new process for producing PHC tubular pile end plates is as follows: hot rolling flat blank with wedge-shaped section, hot coiling into spring shape, cutting into annular single sheet, forming annular single sheet like spring washer, leveling, welding and machining to obtain the final product. However, the annular single sheet is processed into the end plate finished product through a plurality of working procedures, and the transfer of the annular single sheet among the working procedures needs to consume a large amount of labor due to the large size and heavy weight of the annular single sheet, so that the processing efficiency is low.

Disclosure of Invention

In order to solve the problems that in the process of processing the annular single piece into an end plate finished product, the transfer of the annular single piece between the working procedures needs to consume a large amount of labor and has low processing efficiency due to the large size and heavy weight of the annular single piece, according to one aspect of the invention, a welding, leveling and end plate processing assembly line is provided.

The welding, leveling and end plate processing assembly line comprises a welding unit, a leveling unit, a lathe unit, a first punching unit, a drilling and tapping unit and a second punching unit, wherein the welding unit is used for welding a notch of an annular single piece to form an end plate blank, the leveling unit is used for leveling the end plate blank, the lathe unit is used for turning the end plate blank, the first punching unit is used for punching the end plate blank, the drilling and tapping unit is used for drilling and tapping the end plate blank, and the second punching unit is used for punching the end plate blank; the conveyor is arranged to transport end plate blanks from the discharge end of a previous unit to the feed end of a next unit.

Because the welding unit, the leveling unit, the lathe unit, the first punching unit, the drilling and tapping unit and the second punching unit are arranged in the welding, leveling and end plate processing assembly line at the same time, the welding, leveling and end plate processing assembly line can take an annular single sheet like a spring washer as a raw material of an end plate, the working time for processing the annular single sheet into an end plate finished product is reduced, and the processing efficiency of the end plate is improved; moreover, as the welding unit, the rotary leveling unit, the lathe unit, the first punching unit, the drilling and tapping unit, the second punching unit and other processing devices are connected through the conveying device, the manual carrying can be avoided, the labor intensity of operators is reduced, and the semi-finished products are not required to be stored and managed.

Drawings

FIG. 1 is a schematic plan view of a welding, leveling and end plate processing line according to an embodiment of the present invention;

fig. 2 is a schematic plan view of the automatic feeding unit, the welding unit, the first conveying unit and the spin-leveling unit shown in fig. 1;

FIG. 3 is a schematic perspective view of the first conveying unit and the leveling unit shown in FIG. 2;

FIG. 4 is a schematic plan view of the rotary leveling unit, the second conveying unit and the lathe unit shown in FIG. 1;

FIG. 5 is a schematic perspective view of the fifth conveying mechanism and lathe unit shown in FIG. 4;

fig. 6 is a schematic perspective view of another embodiment of the second conveying unit;

FIG. 7 is a schematic plan view of the first punch unit, the fourth conveying unit, the drilling and tapping unit, the fifth conveying unit and the second punch unit shown in FIG. 1;

FIG. 8 is a schematic perspective view of the eighth conveyor mechanism and drilling and tapping unit of FIG. 7;

fig. 9 is a schematic perspective view of a fourth conveying unit;

FIG. 10 is a schematic view of the welding unit of FIG. 1;

FIG. 11 is a schematic view of the overturn transporting mechanism shown in FIG. 4;

FIG. 12 is a schematic view of the inverted transport mechanism of FIG. 11 from another perspective;

FIG. 13 is a schematic view of the transport mechanism of FIG. 11 in a disassembled state;

FIG. 14 is a schematic view of the structure of the inverting conveyance mechanism, the in-feed conveyance mechanism, and the out-feed conveyance mechanism shown in FIG. 11;

fig. 15 is a schematic view of the structure of the inverting conveyance mechanism, the in-feed conveyance mechanism, and the out-feed conveyance mechanism shown in fig. 14.

Detailed Description

The invention is described in further detail below with reference to the accompanying drawings.

Fig. 1 schematically illustrates a welding, leveling and end plate tooling line 20 according to one embodiment of the invention. The welding, leveling and end plate processing line 20 comprises a welding unit 21, a leveling unit 22, a lathe unit 23, a first punching unit 24, a drilling and tapping unit 25 and a second punching unit 26 which are sequentially connected through a conveying device 30.

Wherein the welding unit 21 is used for welding the notch of the annular single piece shaped like a spring washer to form an end plate blank; the leveling unit 22 is used for leveling the end plate blank welded by the welding unit 21 to improve the flatness of the end plate blank; the lathe unit 23 is used for turning the outer diameter of the end plate blank subjected to spin-leveling so as to facilitate the connection of the end plate and a pile sleeve hoop (also called an apron board) in a crimping manner, and turning the end surface and/or the inner diameter of the end plate blank according to requirements; the first punching unit 24 is used for punching through holes on the turned end plate blank; the drilling and tapping unit 25 is used for tapping the through holes to form screw holes, and a blind hole is drilled near each screw hole for standby; the second punch unit 26 is used for punching through grooves on the end plate blank so as to communicate the blind holes with the screw holes, and the groove width of the through grooves is smaller than the diameter of the blind holes and the small diameter of the screw holes, so that when the through grooves communicate the blind holes with the screw holes, counter bores are formed at positions where the blind holes are located. Finally, an annular monolithic piece, shaped as a spring washer, is machined into the end plate by the welding, leveling and end plate machining line 20.

In this embodiment, the welding unit 21, the leveling unit 22, the lathe unit 23, the first punch unit 24, the drilling and tapping unit 25 and the second punch unit 26 may all be processing devices commonly used in the prior art, for example, the welding unit 21 may be an automatic flange welding device with the bulletin number CN104942460B, or a full-automatic double-sided grooving welding integrated machine with the bulletin number CN 206824975U; the rotary leveling unit 22 can be a flange rotary leveling machine with the bulletin number of CN 204724642U; the lathe unit 23 can select a lathe with the bulletin number of CN 204234732U; the first punch unit 24 and the second punch unit 26 can be square flange automatic punching machines with publication number of CN204523970U, or round flange automatic punching machines with publication number of CN 204523957U; the drilling and tapping unit 25 can be a flange numerical control drilling and tapping machine with the bulletin number of CN 204524780U. Of course, other conventional processing units having the same processing function may be used as the above units, as long as the object of the present invention can be achieved.

Further, the drilling and tapping unit 25 performs both tapping and drilling of blind holes, thus resulting in the lowest machining efficiency; the lathe unit 23 needs to control the feed speed to ensure turning quality during turning, and the welding unit 21 also needs to control the feed speed to ensure welding quality during welding, so that the machining efficiency of the lathe unit 23 and the welding unit 21 is slightly lower than that of the screwdriving unit 22, the first punch unit 24 and the second punch unit 26, and slightly higher than that of the drilling and tapping unit 25.

In order to match the processing speeds of the above units, in one embodiment of the present invention as shown in fig. 1, two welding units 21, two lathe units 23, three drilling and tapping units 25, and one each of the screwdriving unit 22, the first punching unit 24, and the second punching unit 26 are provided.

With continued reference to fig. 1, the transport device 30 includes a first transport unit 31, a second transport unit 32, a third transport unit 33, a fourth transport unit 34, and a fifth transport unit 36 in order to match the respective units described above. Specifically, the first conveying unit 31 adopts a two-in-one conveying line for conveying the end plate blanks welded by the two welding units 21 to the leveling unit 22. The second conveying unit 32 adopts a conveying line of two parts, and distributes the end plate blank which is flattened by the flattening unit 22 to the two lathe units 23 for turning. The third conveying unit 33 adopts a two-in-one conveying line for conveying the end plate blanks turned by the two lathe units 23 to the first punch unit 24. The fourth conveying unit 34 adopts a transport line of one third for distributing the end plate blanks punched by the first punching unit 24 to the three drilling and tapping units 25. The fifth conveying unit 35 adopts a three-in-one conveying line to convey the three drilling and tapping units 25 to the second punch unit 26 for punching through the grooves, wherein the blind holes are drilled and the end plate blanks are tapped. Thus, the end plate blanks are smoothly circulated on the welding, leveling and end plate processing line 20 in a coordinated manner according to the processing efficiency of each unit, and the processing efficiency of the welding, leveling and end plate processing line 20 is improved. In addition, the transportation device 30 can eliminate manual transportation, reduce the labor intensity of operators, and save and manage semi-finished products.

As shown in fig. 2, in one embodiment of the present invention, the first conveying unit 31 includes a first conveying mechanism 311, a second conveying mechanism 312, and a third conveying mechanism 313. The feeding end of the first conveying mechanism 311 is connected with the discharging end of one welding unit 21, and the discharging end of the first conveying mechanism is connected with the feeding end of the third conveying mechanism 313, so that the end plate blank processed by the welding unit 21 is conveyed to the third conveying mechanism 313; the feeding end of the second conveying mechanism 312 is connected with the discharging end of the other welding unit 21, and the discharging end of the second conveying mechanism 312 is connected with the feeding end of the third conveying mechanism 313, so as to convey the end plate blank processed by the other welding unit 21 to the third conveying mechanism 313; the discharge end of the third conveying mechanism 313 is connected with the feed end of the rotary leveling unit 22. In general, the first conveying mechanism 311, the second conveying mechanism 312, and the third conveying mechanism 313 may employ conveying mechanisms commonly used in the art, such as a conveying belt or a conveying roller.

As shown in fig. 3, in order to facilitate the transfer of the end plate blanks transferred on the third transfer mechanism 313 to the feed end of the rotary leveling unit 22, in this embodiment, the third transfer mechanism 313 employs transfer rollers. The third conveying mechanism 313 is further provided with a first pushing mechanism 314 and a first lifting mechanism 315. The placing table of the first lifting mechanism 315 can be driven by a driving device to be embedded between conveying rollers of the third conveying mechanism 313, so that the third conveying mechanism 313 can convey the end plate blanks to the placing table of the first lifting mechanism 315, then the placing table of the first lifting mechanism 315 is driven by the driving device to bear the end plate blanks and ascend to the height of the rotation plane unit 22, and then the end plate blanks on the placing table are pushed to the rotation plane of the rotation plane unit 22 through the first pushing mechanism 314, so that the end plate blanks are rotated and flattened through the rotation plane unit 22. In this embodiment, the first pushing mechanism 314 has different pushing strokes, and after the leveling unit 22 levels the end plate blank, the end plate blank located on the level of the leveling unit 22 may be further pushed out and reset by the first pushing mechanism 314, so that the first conveying unit 31 conveys the next end plate blank to the leveling unit 22 for leveling. The driving device of the first pushing mechanism 314 can be an oil cylinder or a motor driving screw rod to drive a nut to travel, and the like, and the stroke of the driving device can be adjustable.

In this embodiment, the specific implementation manner of the third conveying unit 33 is the same as that of the first conveying unit, and will not be described herein.

As shown in fig. 4, in one embodiment of the present invention, the second conveying unit 32 includes a fourth conveying mechanism 321, a fifth conveying mechanism 322, a sixth conveying mechanism 323, and a first bidirectional conveying mechanism 324. The feeding end of the fourth conveying mechanism 321 is connected with the discharging end of the rotary leveling unit 22, the discharging end of the fourth conveying mechanism is connected with the first two-way conveying mechanism 324, and the two discharging ends of the first two-way conveying mechanism 324 are respectively connected with the feeding end of the fifth conveying mechanism 322 and the feeding end of the sixth conveying mechanism 323. The discharge end of the fifth conveying mechanism 322 and the discharge end of the sixth conveying mechanism 323 are respectively connected with a lathe unit 23, so that the lathe unit 23 can carry out turning processing on end plate blanks conveyed by the fifth conveying mechanism 322 and the sixth conveying mechanism 323. In the present embodiment, the first bi-directional conveying mechanism 324 may be implemented in the form of a drum or a conveyor belt, and then the rotation direction of the drum or the conveying direction of the conveyor belt may be changed by alternately rotating forward and backward the driving device of the first bi-directional conveying mechanism 324 so that the first bi-directional conveying mechanism 324 alternately conveys the end plate blanks conveyed from the fourth conveying mechanism 321 to the fifth conveying mechanism 322 and the sixth conveying mechanism 323 so that the second conveying unit 32 has a one-to-two conveying line.

Because the shape of the end plate blank formed after the welding of the annular single piece is an annular plate, before the lathe unit 23 is required to lathe the annular plate-shaped end plate blank, the end plate blank needs to be clamped by a turning clamp, in order to avoid the turning clamp from obstructing the feeding of the turning tool, the turning clamp is required to clamp the end plate blank in an inward expansion manner, for example, the end plate blank is clamped by an inward expansion manner of a three-jaw chuck. However, since the surfaces of the movable jaws on the three-jaw chuck are provided with steps and irregularities, the end plate blanks conveyed from the fifth conveying mechanism 322 and the sixth conveying mechanism 323 cannot be pushed onto the turning jig by the pushing mechanism, and automatic loading of the lathe unit 23 cannot be achieved.

As shown in fig. 5, in order to solve the problem that the pushing mechanism cannot push the end plate blank onto the turning jig due to the uneven turning jig, in the present embodiment, the fifth conveying mechanism 322 and the sixth conveying mechanism 323 employ conveying rollers. The fifth conveying mechanism 322 and the sixth conveying mechanism 323 are further provided with a second pushing mechanism 325, a second elevating mechanism 326, and a third elevating mechanism 327. The third lifting mechanism 327 is arranged at the outer side of the turning fixture of the lathe unit 23, the object placing table of the second lifting mechanism 326 can be embedded between the conveying rollers of the fifth conveying mechanism 322 (the sixth conveying mechanism 323) under the driving of the driving device, so that the fifth conveying mechanism 322 (the sixth conveying mechanism 323) can convey the end plate blank to the object placing table of the second lifting mechanism 326, then the object placing table of the second lifting mechanism 326 is driven by the driving device to bear the end plate blank to lift together, and meanwhile, the object placing table of the third lifting mechanism 327 is driven by the driving device to lift together. When the supporting surface of the object placing table of the third lifting mechanism 327 is higher than the supporting surface of the turning clamp of the lathe unit 23 and is not higher than the supporting surface of the object placing table of the second lifting mechanism 326, pushing the end plate blank on the object placing table of the second lifting mechanism 326 to the object placing table of the third lifting mechanism 327 through the second pushing mechanism 325, then, under the driving of the driving device, the second lifting mechanism 326 and the object placing table of the third lifting mechanism 327 descend together until the supporting surface of the object placing table of the third lifting mechanism 327 is lower than the supporting surface of the turning clamp of the lathe unit 23, at this time, the end plate blank originally positioned on the object placing table of the third lifting mechanism 327 falls on the supporting surface of the turning clamp of the lathe unit 23, then, the end plate blank can be turned through the clamping of the turning clamp, after the turning is finished, the end plate blank is loosened by the turning clamp, the third lifting mechanism is driven by the driving device to the end plate blank originally positioned on the turning clamp to the pushing height of the second pushing mechanism 325, then, the end plate blank is pushed out of the third lifting mechanism 327, under the driving device, the driving device is driven by the driving device, the third lifting mechanism 327 to the third lifting mechanism is driven by the driving device, and the end plate blank positioned on the third lifting mechanism 327, and then, the end plate blank is pushed down to the third conveying unit (32) by the third lifting mechanism to the end plate blank, and can be conveniently embedded in the third lifting unit, and can be conveyed to the end plate blank; in this embodiment, in order to make the second pushing mechanism 325 have different pushing strokes, so that the second pushing mechanism 325 has the function of feeding the end plate blank into the lathe unit 23 and feeding the end plate blank out of the lathe unit 23, the driving device of the second pushing mechanism 325 may be an oil cylinder or a driving device with adjustable strokes, such as a motor driving screw driving nut, etc.

In other embodiments, when the fifth conveying mechanism 322 and the sixth conveying mechanism 323 employ conveying rollers, only the second pushing mechanism 325 and the second lifting mechanism 326 may be provided on the fifth conveying mechanism 32 and the sixth conveying mechanism 323, and a chuck for gripping the end plate blank may be provided on the second pushing mechanism 325. The second lifting mechanism 326 is disposed in the same manner as the first lifting mechanism 315, and will not be described herein again; the chuck can adopt a magnetic chuck, a vacuum chuck or a pneumatic clamp in the prior art; the second pushing mechanism 325 has different pushing strokes, on one hand, after the clamping head clamps the end plate blank on the object placing table of the second lifting mechanism 325, the clamping head is driven by the second pushing mechanism 325 to move to the turning clamp of the lathe unit 23, and then the clamping head places the clamped end plate blank on the turning clamp so as to turn the end plate blank clamped on the turning clamp by the turning tool of the lathe unit 23; on the other hand, when turning is completed and the turning jig loosens the end plate blank, the chuck may be driven by the second pushing mechanism 325 to move onto the turning jig first to clamp the turned end plate blank on the turning jig, then the chuck clamping the turned end plate blank is driven by the second pushing mechanism 325 to move to the feed end of the third conveying unit 33 and the clamped end plate blank is placed on the conveying surface of the third conveying unit 33 to convey the turned end plate blank to the first punch unit 24 for punching processing by the third conveying unit 33, and then the second pushing mechanism 325 drives the chuck to reset to clamp the next welded blank onto the turning jig (not shown in the drawing).

As shown in fig. 6, in other embodiments of the present invention, the second conveying unit 32 also includes a fourth conveying mechanism 321', a fifth conveying mechanism 322', a sixth conveying mechanism 323', and a first bi-directional conveying mechanism 324'. The difference from the foregoing second conveying unit 32 is that, in this embodiment, the first bi-directional conveying mechanism 324 'is different from the foregoing first bi-directional conveying mechanism 324 in structure, and the specific implementation manner of the first bi-directional conveying mechanism 324' includes a conveying roller, a fourth lifting mechanism and a third pushing mechanism, where the placement table of the fourth lifting mechanism can be driven by a driving device thereof to be embedded between the conveying rollers of the first bi-directional conveying mechanism 324', so that the conveying roller of the first bi-directional conveying mechanism 324' can convey the end plate blank conveyed by the fourth conveying mechanism 321 'after rotation onto the placement table of the fourth lifting mechanism, then the placement table of the fourth lifting mechanism is driven by the driving device thereof to bear the end plate blank and rise to the height of the conveying surface of the fifth conveying mechanism 322', and then the end plate blank on the placement table of the fourth lifting mechanism is pushed onto the conveying surface of the fifth conveying mechanism 322 'by the third pushing mechanism, and then the end plate blank is conveyed onto the turning fixture unit 23 by the fifth conveying mechanism 322'. After the third pushing mechanism pushes the end plate blank on the object placing table of the fourth lifting mechanism onto the conveying surface of the fifth conveying mechanism 322', the third pushing mechanism and the fourth lifting mechanism are reset, the next end plate blank which is screwed down is directly conveyed onto the conveying surface of the sixth conveying mechanism 323' through the conveying roller of the first bidirectional conveying mechanism 324', and then the end plate blank is conveyed onto the turning fixture of the lathe unit 23 through the sixth conveying mechanism 323'. The above operation is repeated so that the second conveying unit 32 has a one-to-two conveying line.

In this embodiment, the specific structure of the third conveying unit 33 is the same as that of the first conveying unit 31, and will not be described here again.

As shown in fig. 7, in one embodiment of the invention, the fourth conveying unit 34 includes a seventh conveying mechanism 341, an eighth conveying mechanism 342, a ninth conveying mechanism 343, a tenth conveying mechanism 344, and a three-way conveying mechanism 345, wherein the feeding end of the seventh conveying mechanism 341 is connected to the discharging end of the first punch unit 24, and the discharging end thereof is connected to the feeding end of the three-way conveying mechanism 345; three discharge ends of the three-way conveying mechanism 345 are respectively connected with the feed ends of the eighth conveying mechanism 342, the ninth conveying mechanism 343 and the tenth conveying mechanism 344, and the discharge ends of the eighth conveying mechanism 342, the ninth conveying mechanism 343 and the tenth conveying mechanism 344 are respectively connected with the feed ends of the drilling and tapping unit 25, that is, the feed end of each drilling and tapping unit 25 is respectively connected with one conveying mechanism, so that blind holes and tapping holes can be drilled on end plate blanks conveyed by the eighth conveying mechanism 342, the ninth conveying mechanism 343 and the tenth conveying mechanism 344 through the drilling and tapping unit 25.

Specifically, the three-way conveying mechanism 345 includes a bidirectional conveying mechanism, a lifting mechanism and a pushing mechanism, where the bidirectional conveying mechanism sequentially conveys the end plate blanks conveyed by the seventh conveying mechanism 341 to the eighth conveying mechanism 342 and the tenth conveying mechanism 344, the specific implementation manner of the seventh conveying mechanism 341 and the specific implementation manner of the fourth conveying mechanism 321 are the same, the specific implementation manner of the eighth conveying mechanism 342 and the tenth conveying mechanism 344 and the specific implementation manner of the fifth conveying mechanism 322 and the sixth conveying mechanism 323 are respectively the seventh conveying mechanism 341, the bidirectional conveying mechanism, the eighth conveying mechanism 342 and the tenth conveying mechanism 344 and the fourth conveying mechanism 321, the first bidirectional conveying mechanism 324, the fifth conveying mechanism 322 and the sixth conveying mechanism 323 are not described herein. The object placing table of the lifting mechanism can bear the end plate blank on the bidirectional conveying mechanism and ascend to the conveying surface of the ninth conveying mechanism 343, then the end plate blank on the object placing table of the lifting mechanism is pushed onto the conveying surface of the ninth conveying mechanism 343 through the pushing mechanism, the lifting mechanism is identical to the first lifting mechanism 315 in implementation manner, the pushing mechanism is identical to the first pushing mechanism 314 in implementation manner, and the ninth conveying mechanism 343 is identical to the fifth conveying mechanism 322 and the sixth conveying mechanism 323 in implementation manner. The difference is that before the object placing table of the lifting mechanism is to be lifted, the two-way conveying mechanism stops conveying, the end plate blank is static on the two-way conveying mechanism, then the object placing table of the lifting mechanism is driven by the driving equipment to bear the end plate blank and lift to the conveying surface of the ninth conveying mechanism 343, the end plate blank on the object placing table of the lifting mechanism is conveyed to the ninth conveying mechanism 343 through the pushing mechanism, and then the object placing table of the lifting mechanism is embedded between conveying rollers of the two-way conveying mechanism under the driving of the driving equipment. The bidirectional conveying mechanism, the lifting mechanism, the pushing mechanism and the lifting mechanism work sequentially and work circularly according to the sequence.

As shown in fig. 8, in order to facilitate conveying the end plate blanks conveyed on the eighth conveying mechanism 342, the ninth conveying mechanism 343 and the tenth conveying mechanism 344 to the feed end of the drilling and tapping unit 25 so that the drilling and tapping unit 25 drills and taps the end plate blanks, in this embodiment, the eighth conveying mechanism 342, the ninth conveying mechanism 343 and the tenth conveying mechanism 344 are all implemented as conveying rollers, and fifth lifting mechanisms 346 and feeding and picking mechanisms are further provided on the eighth conveying mechanism 342, the ninth conveying mechanism 343 and the tenth conveying mechanism 344, specifically, the eighth conveying mechanism 342 is taken as an example. The feeding pick-and-place mechanism of the eighth conveying mechanism 342 is provided on the drilling and tapping unit 25 above the drilling and tapping jig of the drilling and tapping unit 25, and is located above the fifth lifting mechanism 346 and the eighth conveying mechanism 342, the placement table of the fifth lifting mechanism 346 is embedded between the rollers of the eighth conveying mechanism 342 under the drive of the driving device thereof, so that the eighth conveying mechanism 342 can convey the end plate blank onto the placement table of the fifth lifting mechanism 346, then, when the placement table of the fifth lifting mechanism 346 is driven by the driving device thereof to lift the end plate blank together above the supporting surface of the drilling and tapping jig of the drilling and tapping unit 25, the feeding pick-and-place mechanism clamps the end plate blank on the placement table of the fifth lifting mechanism 346 and moves the clamped blank above the drilling and tapping jig under the drive of the feeding mechanism thereof, then, the feeding taking and placing mechanism puts down the end plate blank, the end plate blank is enabled to fall on the supporting surface of the drilling and tapping clamp, the end plate blank can be clamped through the drilling and tapping clamp, the drilling and tapping clamp is used for drilling and tapping blind holes and tapping screw holes on the end plate blank, after the drilling and tapping blind holes and tapping screw holes are machined, the drilling and tapping clamp is used for loosening the machined end plate blank, the feeding taking and placing mechanism moves to the upper portion of the drilling and tapping clamp under the driving of the feeding mechanism, the end plate blank passing through the drilling and blind holes and tapping screw holes is clamped and conveyed to the discharging end of the drilling and tapping unit 25, and finally the feeding taking and placing mechanism is reset, so that the drilling and tapping unit 25 is used for drilling and tapping the next end plate blank.

Preferably, as shown in fig. 8, the feeding pick-and-place mechanism includes a first pick-and-place mechanism 347, a second pick-and-place mechanism 348 and a feeding mechanism 349, the feeding mechanism 349 is disposed on the drilling and tapping unit 25 or on the eighth conveying mechanism 342, the first pick-and-place mechanism 347 and the second pick-and-place mechanism 348 are sequentially disposed on the feeding mechanism 349 along the feeding direction of the feeding mechanism 349, so that under the driving of the feeding mechanism 349, the first pick-and-place mechanism 347 reciprocates between the drilling and tapping fixture and the upper part of the discharge end of the drilling and tapping unit 25, the second pick-and-place mechanism 348 reciprocates between the drilling and tapping fixture and the upper part of the drilling and tapping fixture, the driving device of the feeding mechanism 349 can adopt a structure that a cylinder, an oil cylinder or a motor drives a screw rod to drive a nut, the first pick-and-place mechanism 347 and the second pick-and-place mechanism 348 can be realized through magnet adsorption, also can be realized through a structure that a cylinder drives a fixture, and can also be realized through a vacuum chuck commonly used in the prior art. Thus, the feeding pick-and-place mechanism is driven by the driving device thereof, and the end plate blank on the drilling and tapping jig can be conveyed to the conveying surface of the fifth conveying unit 35 through the first pick-and-place mechanism 347, and the end plate blank on the fifth lifting mechanism 346 is conveyed to the drilling and tapping jig through the second pick-and-place mechanism 348.

In other embodiments, the eighth conveying mechanism 342 may be provided with a fifth lifting mechanism 346, a sixth lifting mechanism and a fourth pushing mechanism, and the feeding pick-and-place mechanism is not required, where the eighth conveying mechanism 342 is configured in the same manner as the fifth conveying mechanism 322 (sixth conveying mechanism 323), the fifth lifting mechanism 346 is configured in the same manner as the second lifting mechanism 32, the sixth lifting mechanism is configured in the same manner as the third lifting mechanism, and the fourth pushing mechanism is configured in the same manner as the second pushing mechanism 325, which will not be described herein. The only difference is that in this embodiment the sixth lifting mechanism is not provided outside the turning jig of the lathe unit 23, but outside the drilling tapping jig of the drilling tapping unit 25. So that the end plate blank on the object placing table of the fifth lifting mechanism 346 can be conveyed to the object placing table of the sixth lifting mechanism through the fourth pushing mechanism, and the end plate blank on the object placing table is placed on the drilling and tapping clamp through the sixth lifting mechanism so that the drilling and tapping clamp clamps the end plate blank, and then the end plate blank clamped on the drilling and tapping clamp is drilled and tapped through the drill bit and the tap respectively; after the drilling and tapping machining is completed, the drilling and tapping clamp releases the end plate blank clamped by the drilling and tapping clamp, then the object placing table of the sixth lifting mechanism is driven by the driving device of the sixth lifting mechanism to lift the end plate blank on the drilling and tapping clamp to the pushing height of the fourth pushing mechanism, and then the end plate blank on the object placing table of the sixth lifting mechanism is pushed onto the conveying surface of the fifth conveying unit 35 through the fourth pushing mechanism, so that the eighth conveying mechanism 342 conveys the next end plate into the drilling and tapping unit 25 for drilling and tapping (not shown in the figure).

Also, in other embodiments, the fifth conveying mechanism 322 (sixth conveying mechanism 323) is provided with a second elevating mechanism 326 and a feed conveying mechanism that is the same as the feed conveying mechanism provided on the eighth conveying mechanism 342, and the second pushing mechanism 325 and the third elevating mechanism 327 are not provided. The second lifting mechanism 326 and the feeding conveyor mechanism operate in the same manner as when they are disposed on the eighth conveyor mechanism 342, and will not be described in detail herein. With this structure, the end plate blanks on the turning jigs can be conveyed to the conveying surface of the third conveying unit 33 by the first pick-and-place mechanism 347 under the drive of the drive device of the feeding pick-and-place mechanism, while the end plate blanks on the second elevating mechanism 326 are conveyed to the turning jigs by the second pick-and-place mechanism 348 (not shown).

As shown in fig. 7, in the present embodiment, the fifth conveying unit 35 includes an eleventh conveying mechanism 351, a twelfth conveying mechanism 352, a thirteenth conveying mechanism 353, and a fourteenth conveying mechanism 354; wherein, the feeding ends of the eleventh conveying mechanism 351, the twelfth conveying mechanism 352 and the thirteenth conveying mechanism 353 are arranged to be connected with the discharging end of one drilling and tapping unit 25 separately, that is, the discharging end of each drilling and tapping unit 25 is connected with one conveying mechanism separately, and the discharging ends of the eleventh conveying mechanism 351, the twelfth conveying mechanism 352 and the thirteenth conveying mechanism 353 are connected with the feeding end of the fourteenth conveying mechanism 354, so that the eleventh conveying mechanism 351, the twelfth conveying mechanism 352 and the thirteenth conveying mechanism 353 sequentially convey the end plate blanks after the drilling and tapping unit 25 drills blind holes and working screw holes to the feeding end of the second punch unit 26 through the fourteenth conveying mechanism 354. The specific structures and the implementation of the eleventh conveying mechanism 351, the twelfth conveying mechanism 352, and the thirteenth conveying mechanism 353 are the same as those of the first conveying mechanism 311 and the second conveying mechanism 312, and the fourteenth conveying mechanism 354 is the same as those of the third conveying mechanism 313, except that the fourteenth conveying mechanism 354 is provided with three feeding ends and the third conveying mechanism 313 is provided with two feeding ends, and therefore, the specific structures and the implementation of the eleventh conveying mechanism 351, the twelfth conveying mechanism 352, the thirteenth conveying mechanism 353, and the fourteenth conveying mechanism 354 are not repeated.

As shown in fig. 4 and 7, it is preferable that at least one of the lathe unit 23, the first punch unit 24, the drilling and tapping unit 25, and the second punch unit 26 is provided with a waste conveying mechanism 27 for outputting the processing waste, the waste conveying mechanism 27 may be a conveying belt or a conveying roller, or may be provided as a slope, a discharge end of the waste conveying mechanism 27 is provided with a waste pool 271 for storing the processing waste, and when the waste conveying mechanism 27 is provided as a slope, an end of the slope close to the lathe unit 23, the first punch unit 24, the drilling and tapping unit 25, or the second punch unit 26 is higher than an end thereof close to the waste pool 271.

As shown in fig. 10, further, the welding unit 21 may be provided to include a tack welding mechanism for positioning the notch of the end plate blank and for welding the notch of the end plate blank, a turn-over welding mechanism, and an inner and outer ring welding mechanism. The turn-over welding mechanism and the inner and outer ring welding mechanism are arranged, the turn-over welding mechanism is used for turning over the end plate blank welded by the positioning welding mechanism and welding a notch on the other surface of the end plate blank, the inner and outer ring welding mechanism is used for welding the inner and outer rings of the notch of the end plate blank welded by the turn-over welding mechanism and conveying the welded end plate blank to the first conveying unit 31; or, the turn-over welding mechanism and the inner ring welding mechanism are arranged in such a way that the inner ring and the outer ring welding mechanism are used for welding the inner ring and the outer ring of the notch of the end plate blank welded by the positioning welding mechanism, the turn-over welding mechanism is used for turning over the end plate blank welded by the inner ring and the outer ring welding mechanism and welding the notch of the other surface, the welded end plate blank is conveyed to the first conveying unit 31, the first conveying unit 31 conveys the welded end plate blank to the spin-leveling unit 32, and the second conveying unit 32 conveys the end plate blank screwed to the lathe unit 23 for turning. Therefore, the notches are firmly welded together by the two end faces and the inner diameter and the outer diameter of the annular single piece, so that the strength of the end plate blank is ensured.

With continued reference to FIG. 10, the tack welding mechanism includes a rotation detection mechanism 211, a support mechanism 212, a hold down mechanism 213, and a first welding mechanism 214; the rotation detecting mechanism 211 is used for rotating the end plate blank and detecting a notch of the end plate blank, the supporting mechanism 212 is used for supporting the end plate blank, the pressing mechanism 213 is used for pressing the end plate blank which passes through the position of the notch positioned by the rotation detecting mechanism 211 on the supporting mechanism 212, so that the end plate blank is kept in a flat state when the first welding mechanism 214 is used for welding the notch on the end face of the end plate blank pressed on the supporting mechanism 212.

As shown in fig. 10, further, the welding unit 21 further includes a welding moving mechanism 219 including a clamping turnover mechanism 216 for clamping the end plate blank and turning over the clamped end plate blank and a first welding mechanism 214 for welding a notch of the other end face of the end plate blank turned over by the clamping turnover mechanism 216; the clamping turnover mechanism 216 is arranged on the welding moving mechanism 219, and the welding moving mechanism 219 is used for driving the clamping turnover mechanism 216 to reciprocate from the positioning welding mechanism to the inner ring welding mechanism.

As shown in fig. 10, a clamping lift conveyor 215 may be provided between the rotation detecting mechanism 211 and the support mechanism 212, so that the end plate blank, the notch position of which is detected by the rotation detecting mechanism 211, is conveyed to the support mechanism 212 by the clamping lift conveyor 215 for press welding.

As shown in fig. 10, in particular, the inner and outer ring welding mechanism includes a first clamping mechanism 217 for clamping the end plate blank and a second welding mechanism 218 for welding the inner and outer rings of the notch of the end plate blank clamped by the first clamping mechanism 217; wherein, the first welding mechanism 214 and the second welding mechanism 218 each comprise a welding gun, a vertical moving mechanism and a horizontal moving mechanism, the horizontal moving mechanism is used for driving the vertical moving mechanism and the welding gun to reciprocate along the radial direction of the end plate blank in the horizontal plane together, and the vertical moving mechanism is used for driving the end plate blank to reciprocate along the vertical direction; or the vertical moving mechanism is used for driving the horizontal moving mechanism and the end plate blank to reciprocate in the vertical direction in the horizontal plane together, and the horizontal moving mechanism is used for driving the end plate blank to reciprocate in the radial direction of the end plate blank in the horizontal plane.

As shown in fig. 10, further, the inner and outer ring welding mechanism further includes a first turning mechanism for driving the first clamping mechanism 217 to rotate; the first turnover mechanism is used for driving the first clamping mechanism 217 for clamping the end plate blank welded with the notch inner and outer rings to turn over so as to convey the end plate blank welded with the notch inner and outer rings to the conveying surface of the first conveying unit 31.

As shown in fig. 10, the welding unit further includes a lifting and conveying mechanism disposed below the first clamping mechanism 217 so as to receive the welded end plate blanks loosened after the first clamping mechanism 217 is turned over and convey the welded end plate blanks onto the conveying surface of the first conveying unit 31.

As shown in fig. 1, in this embodiment, the feeding end of the welding unit is provided with an automatic feeding unit 40 for automatically conveying the end plate blank to the feeding end of the welding unit, the automatic feeding unit 40 may be an end plate automatic feeding device with the bulletin number of CN207566391U and an end plate automatic feeding and feeding device, the discharging end of the second punch unit 26 is provided with an automatic stacking device 50 for neatly stacking the end plate formed after the processing of the second punch unit 26, and the automatic stacking device 50 may be an automatic stacking device for tubular pile connectors with the bulletin number of CN 207596088U; when two welding units 21 are provided, the feeding end of each welding unit 21 is provided with an automatic feeding unit 40.

In this embodiment, the end plate machining line further includes a control module and a plurality of sensors for detecting whether the end plate blank is in place; at least one sensor is arranged on each of the welding unit 21, the first conveying unit 31, the screwdriving unit 22, the second conveying unit 32, the lathe unit 23, the third conveying unit 33, the first punching unit 24, the fourth conveying unit 34, the drilling and tapping unit 25, the fifth conveying unit 35 and the second punching unit 26, the sensors are connected with a control module, and the control module generates control signals according to signals detected by the sensors to output and control the working modes (such as starting and ending working time) of the welding unit 21, the first conveying unit 31, the screwdriving unit 22, the second conveying unit 32, the lathe unit 23, the third conveying unit 33, the first punching unit 24, the fourth conveying unit 34, the drilling and tapping unit 25, the fifth conveying unit 35 and the second punching unit 26.

Preferably, the welding unit 21, the first conveying unit 31, the screwdriving unit 22, the second conveying unit 32, the lathe unit 23, the third conveying unit 33, the first punching unit 24, the fourth conveying unit 34, the drilling and tapping unit 25, the fifth conveying unit 35 and the second punching unit 26 are arranged in sequence, wherein the welding unit 21, the screwdriving unit 22, the lathe unit 23, the first punching unit 24, the drilling and tapping unit 25 and the second punching unit 26 are collectively referred to as a machining unit, the first conveying unit 31, the second conveying unit 32, the third conveying unit 33, the fourth conveying unit 34 and the fifth conveying unit 35 are collectively referred to as a conveying unit, and sensors for sensing end plate blanks are arranged at the feeding end and the discharging end of the machining unit. The control module is arranged to generate a feeding control signal according to a signal fed back by a sensor at the discharge end of each processing unit that the end plate blank passes through, and control a last conveying unit connected with the processing unit to convey the end plate blank at the discharge end of the last processing unit connected with the conveying unit to the feed end of the processing unit; the control module is further configured to generate a processing control signal according to a signal that the sensor at the feeding end of each processing unit feeds back that the feeding end of the processing unit has the end plate blank to pass through, control the processing unit to process the end plate blank, and convey the processed end plate blank to the discharging end thereof.

Preferably, the sensors are disposed at the discharge ends of the first conveying mechanism 311 and the second conveying mechanism 312, and the control module is configured to generate a stop signal to control one of the conveying mechanisms to stop conveying when the sensors at the discharge ends of the first conveying mechanism 311 and the second conveying mechanism 312 detect the end plate blanks, and generate a drive control signal to control the conveying mechanism to start conveying when the sensor at the discharge end of the other conveying mechanism detects that the end plate blanks are output from the conveying mechanism, so that the first conveying unit 31 has a two-in-one conveying route.

Preferably, the two discharging ends of the first bidirectional conveying mechanism 324 are both provided with sensors, and the control module is configured to generate a reversing control signal according to a signal that the sensor at one discharging end of the first bidirectional conveying mechanism 324 detects that the end plate blank passes through, and control the first bidirectional conveying mechanism 423 to reverse, so that the first bidirectional conveying mechanism 324 conveys the end plate blank from the other discharging end to the fifth conveying mechanism 322 or the sixth conveying mechanism 323, and the second conveying unit 32 can have a one-to-two conveying route.

Preferably, when the three-way conveying mechanism 345 includes a bidirectional conveying mechanism and a pushing mechanism, the three discharging ends of the three-way conveying mechanism 345 are respectively provided with a sensor, the three discharging ends are respectively provided with an eighth conveying mechanism 342, a ninth conveying mechanism 343 and a tenth conveying mechanism 344, the control module is configured to generate a reversing control signal according to the sensor provided with the discharging end of the eighth conveying mechanism 342 or the sensor provided with the discharging end of the tenth conveying mechanism 344, to control the bidirectional conveying mechanism to reverse, the control module is further configured to generate a stopping conveying signal and a pushing control signal according to the sensor provided with the eighth conveying mechanism 342 and the tenth conveying mechanism 344, the bidirectional conveying mechanism stops conveying according to the stopping conveying signal, the pushing mechanism pushes the end plate blank at the feeding end of the conveying mechanism 345 to the ninth conveying mechanism 343 according to the pushing control signal, and the control module is configured to alternately output the control signal to the bidirectional conveying mechanism and the pushing mechanism to control the alternating operation of the bidirectional conveying mechanism and the pushing mechanism, so that the fourth conveying unit 34 has a third conveying route.

Preferably, the discharge ends of the eleventh conveying mechanism 351, the twelfth conveying mechanism 352 and the thirteenth conveying mechanism 353 are respectively provided with a sensor, and the control module is configured to generate a stop signal to control two conveying mechanisms to stop conveying when the sensors of the discharge ends of the eleventh conveying mechanism 351, the twelfth conveying mechanism 352 and the thirteenth conveying mechanism 353 detect end plate blanks, and generate a drive control signal to output sequentially after the sensors of the discharge ends of the other conveying mechanism detect the end plate blanks output from the conveying mechanisms, and sequentially control the conveying mechanisms stopping conveying to start conveying, so that the fifth conveying unit has a three-in-one conveying route.

As shown in fig. 2 and 3, in the present embodiment, the leveling unit 22 includes a first leveling mechanism 221, a turnover transportation mechanism 60 and a second leveling mechanism 222, where the turnover transportation mechanism 60 is disposed between the first leveling mechanism 221 and the second leveling mechanism 222, and the turnover transportation mechanism 60 is configured to turn over the end plate blank that is primarily leveled by the first leveling mechanism 221, and convey the end plate blank that is primarily leveled and turned over to the second leveling mechanism 222 for leveling again, so as to obtain the end plate blank with higher flatness. Further, the first rotary leveling mechanism 221 and the second rotary leveling mechanism 222 are connected through a rotary leveling conveying mechanism 223, and the turnover conveying mechanism 60 is arranged on the rotary leveling conveying mechanism 223; the leveling conveying mechanism 223 conveys the end plate blank which is primarily leveled by the first leveling mechanism 221 to the turnover conveying mechanism 60 for turnover, and conveys the end plate blank which is turned by the turnover conveying mechanism 60 to the second leveling mechanism 222 for re-leveling; in order to facilitate conveying the turned end plate blanks to the second leveling mechanism 222, a second leveling conveying mechanism 223 for conveying the turned end plate blanks of the turning conveying mechanism 60 to the second leveling mechanism 222 is further arranged between the turning conveying mechanism 60 and the second leveling mechanism 222, and the structure of the second leveling feeding mechanism 223 is the same as that of the third conveying mechanism 313, which is not described herein.

As shown in fig. 11 to 13, in the present embodiment, the inverting conveyance mechanism 60 includes a second holding mechanism 61 for holding a workpiece and a second inverting mechanism 62 for driving the second holding mechanism 61 to invert; the first clamping mechanism 61 has a clamping space for accommodating the end plate, the clamping space is communicated with the outside through the first feed port 610 so that the workpiece can enter the clamping space through the first feed port 610, and the first tilting mechanism 62 can drive the first clamping mechanism 61 to be tilted so that the first feed port 610 is tilted from one side to the other side of the first tilting mechanism 62. Specifically, the second rotary leveling feeding mechanism 223 includes a feeding conveying mechanism 63 and a discharging conveying mechanism 64, the first overturning and conveying mechanism 60 has a feeding state and a discharging state, when the first overturning and conveying mechanism 60 is in the feeding state, the first clamping mechanism 61 is overturned to the first feeding port 610 thereof toward the discharging end of the feeding conveying mechanism 63 under the driving of the first overturning mechanism 62, that is, at this time, the height of the conveying surface of the feeding conveying mechanism 63 is located between the first feeding ports 610; when the first turnover conveying mechanism 60 is in the discharging state, the first clamping mechanism 61 is turned over to the feeding end of the first feeding port 610 facing the discharging conveying mechanism 64 under the driving of the first turnover mechanism 62, that is, at this time, the height of the conveying surface of the discharging conveying mechanism 64 is located between the first feeding ports 610. Since the first turnover transportation mechanism 60 only comprises the first turnover mechanism 62 and the first clamping mechanism 61, the structure is simple and compact, when the first turnover transportation mechanism 60 is combined with the feeding transportation mechanism 63 and the discharging transportation mechanism 64, the first turnover transportation mechanism 60 does not occupy larger positions in the transportation direction of the feeding transportation mechanism 63 and the discharging transportation mechanism 64 or occupy larger positions above and below the feeding transportation mechanism 63 and the discharging transportation mechanism 64, namely, the first turnover transportation mechanism 60 is simple and compact in structure and does not occupy larger working space; and the feeding conveying mechanism 63 and the discharging conveying mechanism 64 are connected with the first overturning and conveying mechanism 60 without additionally arranging an end plate conveying mechanism, and the feeding conveying mechanism 63 and the discharging conveying mechanism 64 are not required to be modified.

As shown in fig. 11, the length range of the gripping depth L of the second gripping mechanism 61 corresponds to 1/3 to 1/2 of the length of the workpiece to be gripped. Thereby, it is possible to facilitate both the placement of the end plate 81 to be inverted into the clamping space of the first clamping mechanism 61 and the removal of the inverted end plate 81 from the clamping space of the first clamping mechanism 61.

With continued reference to fig. 11, the distance between the first turning mechanism 62 and the first feeding port 610 corresponds to the clamping depth L of the first clamping mechanism 61, and the feeding direction of the feeding conveying mechanism 63 and the discharging direction of the discharging conveying mechanism 64 are perpendicular to the rotation axis of the first turning mechanism 62. Therefore, the turnover conveying mechanism 60 can realize turnover of the workpiece only by arranging the second clamping mechanism 61 and the second turnover mechanism 62, the structure is simple and compact, a large working space is not required to be occupied, the turnover conveying mechanism 62 does not need to undergo procedures such as lifting, descending and pushing of the workpiece in the operation process, the working process is simple and rapid, and the turnover efficiency of the workpiece is greatly improved; in addition, the overturning and transporting mechanism 60 has better applicability with the transporting mechanism, and the overturning and transporting device can be directly arranged at the feeding end and/or the discharging end of the transporting mechanism for use without modifying the transporting mechanism.

As shown in fig. 11 to 13, in the present embodiment, the second clamping mechanism 61 includes a first clamping plate 611, a second clamping plate 612, and a clamping driving device 613; a clamping driving device 613 and a second turnover mechanism 62 are arranged on the first clamping plate 611, a second clamping plate 612 is arranged on the clamping driving device 613, and the second turnover mechanism 62 is used for driving the first clamping plate 611 to turn; the clamp driving device 613 is used to drive the second clamp plate 612 toward the first clamp plate 611 to clamp the workpiece, or to drive the second clamp plate 612 away from the first clamp plate 611 to unclamp the workpiece. Thereby, when the workpiece to be turned is placed in the clamping depth position in the first clamping plate 611 and the second clamping plate 612, the second clamping plate 612 can be driven to move toward the first clamping plate 611 by the clamping driving device 613, thereby clamping the workpiece to be turned between the first clamping plate 611 and the second clamping plate 612; then, the first clamping plate 611 is driven to overturn by the second overturning mechanism 62 to drive the workpiece to be overturned and the second clamping plate 612 to overturn together, so that the workpiece is overturned; then, the second clamping plate 612 is driven to move in a direction away from the first clamping plate 611 by the clamping driving device 613, so that the turned-over workpiece is released; when the turned workpiece is taken out from the first clamping plate 611 and the second clamping plate 612, the second clamping mechanism 61 is driven to turn back to the initial position (i.e. reset) by the second turning mechanism 62, and thus one turning operation is completed. By adopting the second clamping mechanism 61 and the second turnover mechanism 62 with the above structures, only the clamping driving of the clamping driving device 613, the turnover driving of the driving device of the second turnover mechanism 62, the loosening driving of the clamping driving device 613 and the resetting driving of the second turnover mechanism 62 are needed for realizing one-time turnover operation, and the driving process is simple and quick.

Preferably, the clamping driving device 613 may be a cylinder or an oil cylinder, preferably a cylinder. Specifically, the type of the air cylinder or the cylinder used for clamping the driving device 613 is not limited, and the invention is not limited to the type of the air cylinder or the cylinder used for clamping the driving device 613, as long as the relative movement between the second clamping plate 612 and the first clamping plate 611 can be driven and driven by using the air cylinder or the cylinder.

Specifically, the second turnover mechanism 62 selects a servo motor 621, specifically, a loose servo motor with a power of 0.75KW may be selected, in order to make the servo motor 621 stably drive the first clamping plate 611 to rotate, a speed reducer 622 is generally further provided, the servo motor 621 is connected with the first clamping plate 611 through the speed reducer 622, a RV series speed reducer may be selected, or a servo motor with another model may be selected, so long as the second clamping mechanism 61 can be driven to rotate, and the specific implementation manner of the second turnover mechanism 62 is not limited. In order to smoothly rotate the first clamping plate 611 under the drive of the servo motor 621, the second clamping mechanism 61 and the second flipping mechanism 62 are connected through a bearing 66.

As shown in fig. 11 to 13, further, a limiting block 614 with a height smaller than the thickness of the clamped workpiece is further installed on the first clamping plate 611 or the second clamping plate 612, the limiting block 614 is arranged between the first clamping plate 611 and the second clamping plate 612, and the distance between the limiting block 614 and the first feeding hole 610 of the second clamping mechanism 61 is equal to 1/3-1/2 of the length of the clamped workpiece. Since the distance between the stopper 614 and the first feed port 610 of the second clamping mechanism 61 is equivalent to 1/3-1/2 of the length of the workpiece to be clamped, that is, the stopper 614 is located at the position where the clamping depth of the second clamping mechanism 61 is located, when the workpiece placed in the second clamping mechanism 61 touches the stopper 614, the workpiece moves to the position where the clamping depth of the second clamping mechanism 61 is located, thereby defining the clamping depth of the second clamping mechanism 61, and since the height of the stopper 614 is smaller than the thickness of the workpiece to be clamped, it is possible to avoid that the workpiece cannot be clamped by abutting on the stopper 614 when the second clamping plate 612 moves toward the first clamping plate 611. In other embodiments, the height of the stopper 614 may not be limited, and in this case, when the stopper 614 is mounted on any one of the first clamping plate 611 and the second clamping plate 612, a through hole for passing through the stopper 614 may be integrally formed on the other plate, so as to prevent the second clamping plate 612 from abutting on the stopper 614 when moving toward the first clamping plate 611 under the driving of the clamping driving device 613.

As shown in fig. 11, further, the feeding direction M of the second clamping mechanism 61 is perpendicular to the rotation axis of the second flipping mechanism 62. Therefore, when the second turnover mechanism 62 drives the second clamping mechanism 61 to drive the workpiece to be turned over by 180 degrees, the turnover of the workpiece is realized, meanwhile, the workpiece is enabled to travel a distance of one workpiece in the feeding direction, namely, the turnover and the transportation of the workpiece are realized, and the turnover and the transportation efficiency of the workpiece are improved.

The turnover transportation mechanism 60 is mainly used for turnover transportation of plates, and is commonly used for turnover transportation of flanges.

Preferably, the conveying surfaces of the feed conveyor 63 and the discharge conveyor 64 are flush. When the second clamping mechanism 61 includes the first clamping plate 611 and the second clamping plate 612, and moves relative to the first clamping plate 611 by the second clamping plate 612 to clamp the workpiece, the surface of the first clamping plate 611 in contact with the workpiece is the first clamping surface, the surface of the second clamping plate 612 in contact with the workpiece is the second clamping surface, and when the inverting conveyance mechanism 60 is installed between the feeding conveyance mechanism 63 and the discharging conveyance mechanism 64 with the first feeding port 610 facing the discharging end of the feeding conveyance mechanism 63 or the feeding end of the discharging conveyance mechanism 64, one of the first clamping surface and the second clamping surface is flush with, slightly higher than, or slightly lower than the conveyance surfaces of the two swivel conveyance mechanisms 223, at this time, the other clamping surface is higher than the conveyance surfaces of the feeding conveyance mechanism 63 and the discharging conveyance mechanism 64, and the distance of the other clamping surface from the conveyance surfaces of the feeding conveyance mechanism 63 and the discharging conveyance mechanism 64 is greater than the thickness of the workpiece to be clamped.

As shown in fig. 14 and 15, further, the welding, leveling and end plate processing line further includes a material blocking mechanism 65, where the material blocking mechanism 65 is disposed between the feeding conveying mechanism 63 and the turnover conveying mechanism 60 and below the turnover conveying mechanism 60; the dam mechanism 65 includes a stopper 651 and a dam drive device 652, the dam drive device 652 being configured to drive the stopper 651 to reciprocate from below to above the conveying surface of the feed conveying mechanism 63. Therefore, in the process that the second turnover mechanism 62 drives the second clamping mechanism 61 to drive the workpiece to be turned over to turn over, the stop block 651 can be driven by the stop driving device 652 to move to the position above the conveying surface of the feeding conveying mechanism 63, so that the workpiece conveyed by the feeding conveying mechanism 63 is prevented from blocking the turnover of the second clamping mechanism 61, and the workpiece conveyed by the feeding conveying mechanism 63 can be prevented from falling under the condition that the workpiece is not clamped by the second clamping mechanism 61. The material blocking driving device 652 may be an oil cylinder or an air cylinder, preferably, an air cylinder, specifically, an air cylinder of the type tcm 25×40 series or other commonly used air cylinders, as long as the stopper 651 can be driven to reciprocate from the lower part to the upper part of the conveying surface of the first feeding conveying mechanism 63, at this time, the cylinder body of the oil cylinder or the air cylinder is fixedly connected with the mounting seat through the mounting plate, and the stopper 651 is connected with the piston rod of the oil cylinder or the air cylinder.

As shown in fig. 14 and 15, in the present embodiment, the feeding conveying mechanism 63 includes a roller, a feeding driving device 632 and a bracket, where a plurality of rollers are arranged on the bracket in parallel at equal intervals and can be pivoted, a sprocket is coaxially connected to a rotation shaft of the roller, the feeding driving device 632 is mounted on the bracket, the sprocket on the roller is connected to the feeding driving device 632 through a chain, and the feeding driving device 632 drives the chain to rotate through the movement of the driving chain, so as to drive the plurality of rollers to rotate in the same direction, thereby moving the workpiece on the roller toward the feed inlet of the turnover conveying mechanism 60 under the drive of the roller. At this time, the provided dam mechanism 65 may be installed either between the first feed conveyor mechanism 63 and the inverting conveyor mechanism 60 through a mounting plate or between the rollers through a mounting plate, and when the dam mechanism 65 is installed between the rollers, the stopper 651 may be driven by the dam driving device 652 to rise from between the two rollers to above the conveying surface of the feed conveyor mechanism 63 or fall to below the conveying surface of the feed conveyor mechanism 63. Likewise, the outfeed conveyor 64 may also include rollers, outfeed drive devices 642, and brackets, arranged in the same manner as the infeed conveyor 63, and will not be described in detail herein. The feeding driving device 632 and the discharging driving device 642 may adopt driving motors, in particular, may adopt three-phase asynchronous motors of Y2 series, or other commonly used driving motors, as long as driving of the feeding conveying mechanism 63 and the discharging conveying mechanism 64 can be realized, and the specific driving mode of the feeding conveying mechanism 63 and the discharging conveying mechanism 64 is not limited in the present invention.

In other embodiments, the feeding conveyor 63 and the discharging conveyor 64 may be conveyor belts commonly used in the art, and in this case, the inverting conveyor 60 may be disposed between the first discharging port 631 of the feeding conveyor 63 and the feeding port of the discharging conveyor 64 by a mounting bracket (not shown).

In the present invention, without particular emphasis, a conveying mechanism commonly used in the art, such as a conveying belt or a conveying roller, may be employed.

What has been described above is merely some embodiments of the present invention. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit of the invention.

Claims

1. The welding, leveling and end plate processing assembly line is characterized by comprising a welding unit (21) for welding a notch of an annular single sheet to form an end plate blank, a leveling unit (22) for leveling the end plate blank, a lathe unit (23) for turning the end plate blank, a first punch unit (24) for punching the end plate blank, a drilling and tapping unit (25) for drilling and tapping the end plate blank, a second punch unit (26) for punching the end plate blank, a control module and a plurality of sensors for detecting whether the end plate blank moves in place or not, wherein the welding unit, the leveling unit and the end plate processing assembly line are sequentially connected through a conveying device (30);

Two welding units (21) are arranged, two lathe units (23) are arranged, and three drilling and tapping units (25) are arranged;

the conveying device (30) comprises a first conveying unit (31), a second conveying unit (32), a third conveying unit (33), a fourth conveying unit (34) and a fifth conveying unit (35), wherein the welding unit (21), the first conveying unit (31), the rotary leveling unit (22), the second conveying unit (32), the lathe unit (23), the third conveying unit (33), the first punching unit (24), the fourth conveying unit (34), the drilling and tapping unit (25), the fifth conveying unit (35) and the second punching unit (26) are sequentially connected, so that the conveying device (30) is arranged to convey an end plate blank of a discharge end of a previous unit to a feed end of a next unit;

the first conveying unit (31) and the third conveying unit (33) are respectively provided with two feed inlets and one discharge outlet, the second conveying unit (32) is provided with one feed inlet and two discharge outlets, the fourth conveying unit (34) is provided with one feed inlet and three discharge outlets, and the fifth conveying unit (35) is provided with three feed inlets and one discharge outlet;

The welding unit (21) comprises a positioning welding mechanism, a turn-over welding mechanism and an inner ring and outer ring welding mechanism;

the positioning welding mechanism is used for positioning and welding the notch of the end plate blank;

the turnover welding mechanism is used for turning over the end plate blank welded by the positioning welding mechanism and welding the other surface of the notch, and the inner and outer ring welding mechanism is used for welding the inner and outer rings of the notch of the end plate blank welded by the turnover welding mechanism and conveying the welded end plate blank to the first conveying unit (31);

or the inner and outer ring welding mechanism is used for welding the inner and outer rings of the notch of the end plate blank welded by the positioning welding mechanism, the turn-over welding mechanism is used for turning over the end plate blank welded by the inner and outer ring welding mechanism and welding the other surface of the notch, and the welded end plate blank is conveyed to the first conveying unit (31);

the feeding end of the welding unit (21) is provided with an automatic feeding unit (40) for automatically conveying end plate blanks to the feeding end of the welding unit (21), and the discharging end of the second punching unit (26) is provided with an automatic stacking device (50) for neatly stacking end plates formed after the second punching unit (26) is processed

And welding unit (21), first conveying unit (31), spiral flat unit (22), second conveying unit (32), lathe unit (23), third conveying unit (33), first punch press unit (24), fourth conveying unit (34), drilling and tapping unit (25), fifth conveying unit (35) and second punch press unit (26) are last all to be equipped with at least one the sensor, the sensor all with control module is connected, control module is according to the signal generation control signal output that the sensor detected and control welding unit (21), first conveying unit (31), spiral flat unit (22), second conveying unit (32), lathe unit (23), third conveying unit (33), first punch press unit (24), fourth conveying unit (34), drilling and tapping unit (25), fifth conveying unit (35) and the operating mode of second punch press unit (26).

2. Welding, leveling and end plate processing line according to claim 1, characterized in that the first conveying unit (31) comprises a first conveying mechanism (311), a second conveying mechanism (312) and a third conveying mechanism (313), the feed ends of the first conveying mechanism (311) and the second conveying mechanism (312) are respectively connected with the discharge ends of the two welding units (21), the discharge ends of the first conveying mechanism (311) and the second conveying mechanism (312) are both connected with the feed end of the third conveying mechanism (313), and the discharge end of the third conveying mechanism (313) is connected with the feed end of the leveling unit (22).

3. The welding, leveling and end plate tooling line according to claim 1, characterized in that the second conveying unit (32) comprises a fourth conveying mechanism (321), a fifth conveying mechanism (322), a sixth conveying mechanism (323) and a first bi-directional conveying mechanism (324) for conveying end plate blanks to the fifth conveying mechanism (322) and the sixth conveying mechanism (323) in sequence;

the feeding end of the fourth conveying mechanism (321) is connected with the discharging end of the rotary leveling unit (22), the discharging end of the fourth conveying mechanism (321) is connected with the feeding end of the first bidirectional conveying mechanism (324), the two discharging ends of the first bidirectional conveying mechanism (324) are respectively connected with the feeding ends of the fifth conveying mechanism (322) and the sixth conveying mechanism (323), and the discharging ends of the fifth conveying mechanism (322) and the sixth conveying mechanism (323) are respectively connected with the feeding ends of the two lathe units (23).

4. The welding, leveling and end plate tooling line of claim 1, wherein the fourth conveying unit (34) comprises a seventh conveying mechanism (341), an eighth conveying mechanism (342), a ninth conveying mechanism (343), a tenth conveying mechanism (344) and a three-way conveying mechanism (345) for conveying end plate blanks to the eighth conveying mechanism (342), the ninth conveying mechanism (343) and the tenth conveying mechanism (344) in sequence;

The feeding end of the seventh conveying mechanism (341) is connected with the discharging end of the first punch unit (24), the discharging end of the seventh conveying mechanism (341) is connected with the feeding end of the three-way conveying mechanism (345), the three discharging ends of the three-way conveying mechanism (345) are respectively connected with the feeding ends of the eighth conveying mechanism (342), the ninth conveying mechanism (343) and the tenth conveying mechanism (344), and the discharging ends of the eighth conveying mechanism (342), the ninth conveying mechanism (343) and the tenth conveying mechanism (344) are respectively connected with the feeding ends of the three drilling and tapping units (25).

5. The welding, leveling and end plate tooling line according to claim 1, wherein the fifth conveying unit (35) comprises an eleventh conveying mechanism (351), a twelfth conveying mechanism (352), a thirteenth conveying mechanism (353) and a fourteenth conveying mechanism (354);

the feeding ends of the eleventh conveying mechanism (351), the twelfth conveying mechanism (352) and the thirteenth conveying mechanism (353) are respectively connected with the discharging ends of the three drilling and tapping units (25), the discharging ends of the eleventh conveying mechanism (351), the twelfth conveying mechanism (352) and the thirteenth conveying mechanism (353) are respectively connected with the feeding end of the fourteenth conveying mechanism (354), and the discharging end of the fourteenth conveying mechanism (354) is connected with the feeding end of the second punching unit (26).

6. Welding, leveling and end plate machining line according to claim 1, characterized in that at least one of the lathe unit (23), the first punch unit (24), the drilling and tapping unit (25) and the second punch unit (26) is provided with a waste conveying mechanism (27) for outputting machining waste, and the discharge end of the waste conveying mechanism (27) is provided with a waste pool (271) for storing machining waste.