CN114473300A

CN114473300A - Carbon crystal plug welding machine for assembling motor end cover and operation method thereof

Info

Publication number: CN114473300A
Application number: CN202210069338.7A
Authority: CN
Inventors: 张金龙; 周华国; 廖建勇
Original assignee: Shenzhen Honest Mechatronic Equipment Co Ltd
Current assignee: Shenzhen Honest Mechatronic Equipment Co Ltd
Priority date: 2022-01-21
Filing date: 2022-01-21
Publication date: 2022-05-13

Abstract

The invention discloses a carbon crystal plug welding machine for assembling a motor end cover and an operation method thereof, and the welding machine comprises a rack, a turntable, a discharging jig, an anode plug feeding mechanism, a cathode plug feeding mechanism, a first carbon crystal feeding mechanism, a second carbon crystal feeding mechanism, a welding mechanism, an anode plug discharging and shaping mechanism and a cathode plug discharging and shaping mechanism, wherein the turntable is rotatably arranged on the rack; the plurality of discharging jigs are arranged at intervals along the circumferential direction of the turntable; the negative plug feeding mechanism, the positive plug feeding mechanism, the first carbon crystal feeding mechanism, the second carbon crystal feeding mechanism, the welding mechanism, the positive plug discharging and shaping mechanism and the negative plug discharging and shaping mechanism are sequentially arranged on the periphery of the rotary table along the rotation direction of the rotary table. Therefore, the welding machine for the carbon crystal plug is formed by integrating the mechanisms on the rack, so that the automatic feeding, welding, blanking and shaping operations of the anode plug, the cathode plug and the carbon crystal are realized, and the automation degree of end cover assembly is improved.

Description

Carbon crystal plug welding machine for assembling motor end cover and operation method thereof

Technical Field

The invention relates to the technical field of motor assembly, in particular to a carbon crystal plug welding machine for assembling a motor end cover and an operation method thereof.

Background

In recent years, motors are more and more widely applied, and the demand of automatic assembly equipment of the motors is more and more; in the motor assembling process, aiming at the complex assembling flow of the end cover, the positive plug, the negative plug and the two carbon crystals need to be assembled respectively, and the positive plug and the negative plug need to be welded with the corresponding carbon crystals respectively. The assembly to the end cover among the prior art often needs many equipment to operate, shifts to next equipment after having operated a flow again, and overall structure is complicated, and degree of automation is not high, needs artifical supplementary completion usually. Therefore, in order to meet the current situation, the development of a carbon crystal plug welding and assembling device is urgently needed to meet the requirement of practical use.

Disclosure of Invention

In view of the above, the present invention provides a carbon crystal plug welding machine for assembling a motor end cover, which integrates a turntable, an anode plug feeding mechanism, a cathode plug feeding mechanism, a first carbon crystal feeding mechanism, a second carbon crystal feeding mechanism, an anode plug blanking shaping mechanism and a cathode plug blanking shaping mechanism on a rack to form the carbon crystal plug welding machine for assembling the motor end cover, so as to realize automatic feeding, welding, blanking and shaping operations of the anode plug, the cathode plug, the first carbon crystal and the second carbon crystal, and improve the automation degree of end cover assembly.

In order to achieve the purpose, the invention adopts the following technical scheme:

a carbon crystal plug welding machine for assembling a motor end cover comprises a rack, a rotary table arranged on the rack, a plurality of discharging jigs, a positive plug feeding mechanism for feeding a positive plug, a negative plug feeding mechanism for feeding a negative plug, a first carbon crystal feeding mechanism for feeding a first carbon crystal, a second carbon crystal feeding mechanism for feeding a second carbon crystal, a welding mechanism for welding the first carbon crystal and the positive plug and welding the second carbon crystal and the negative plug, a positive plug discharging and shaping mechanism and a negative plug discharging and shaping mechanism, wherein the rotary table is rotatably arranged on the rack; the plurality of discharging jigs are arranged at intervals along the circumferential direction of the turntable, and each jig is respectively provided with a positive plug placing groove for placing a positive plug, a first carbon crystal placing groove for placing first carbon crystals, a negative plug placing groove for placing a negative plug and a second carbon crystal placing groove for placing second carbon crystals; the negative plug feeding mechanism, the positive plug feeding mechanism, the first carbon crystal feeding mechanism, the second carbon crystal feeding mechanism, the welding mechanism, the positive plug discharging and shaping mechanism and the negative plug discharging and shaping mechanism are sequentially arranged on the periphery of the rotary table along the rotation direction of the rotary table.

As a preferred scheme: the material placing jig comprises a first carbon crystal placing seat for placing the first carbon crystal, a second carbon crystal placing seat for placing the second carbon crystal, a negative plug placing block for placing a negative plug, a positive plug placing block for placing a positive plug, a negative plug overturning driving component for driving the negative plug placing block to overturn and a positive plug overturning driving component for driving the positive plug to overturn, wherein the first carbon crystal placing seat is provided with the first carbon crystal placing groove; and the negative plug placing block is positioned beside the first carbon crystal placing seat, the positive plug placing block is positioned beside the second carbon crystal placing seat, the output end of the negative plug overturning driving component is connected with the negative plug placing block, and the output end of the positive plug overturning driving component is connected with the positive plug placing block.

As a preferred embodiment: the material placing jig further comprises a base, and the first carbon crystal placing seat and the second carbon crystal placing seat are respectively installed on the base; a negative plug base used for installing a negative plug placing block and a positive plug base used for installing a positive plug placing block are arranged on the base, the negative plug base is positioned beside the first carbon crystal placing base, the positive plug base is positioned beside the second carbon crystal placing base, the negative plug placing block is installed on the negative plug base in a turnover mode, and the positive plug placing block is installed on the positive plug base in a turnover mode; the negative plug overturning driving component is arranged on the negative plug base and comprises a driving rod and a linkage rod, and the linkage rod is connected between the driving rod and the negative plug placing block; the positive plug overturning driving assembly is arranged on the positive plug base and comprises a driving rod and a linkage rod, and the linkage rod is connected between the driving rod and the positive plug placing block.

As a preferred embodiment: the driving rod of the negative plug overturning driving assembly can be elastically and telescopically arranged on a negative plug base, the negative plug placing block can be rotatably arranged on the side wall of the negative plug base, one end of a linkage rod of the negative plug overturning driving assembly is fixedly connected with the negative plug placing block, and the other end of the linkage rod is movably connected with the front end of the driving rod; the drive rod of the positive plug overturning drive assembly can be elastically and telescopically arranged on the positive plug base, the positive plug placing block can be rotatably arranged on the side wall of the positive plug base, one end of the linkage rod of the positive plug overturning drive assembly is fixedly connected with the positive plug placing block, and the other end of the linkage rod is movably connected with the front end of the drive rod.

As a preferred embodiment: the front end of the driving rod is provided with a first opening, and the end part of the first opening is provided with a matching pin; the linkage rod is provided with a second opening, the linkage rod is movably positioned in the first opening, and the matching pin is movably matched with the second opening.

As a preferred embodiment: the negative plug base is provided with a negative plug limiting block for overturning and limiting the negative plug placing block, and the negative plug placing block is detachably matched with the negative plug limiting block; be provided with on anodal plug base and be used for placing the piece to anodal plug and overturn spacing anodal plug stopper, anodal plug is placed piece and anodal plug stopper detachable cooperation.

As a preferred embodiment: the welding mechanism comprises a welding bracket, an anode welding head, a cathode welding head, an anode welding head driving device, a cathode welding head driving device and a material pushing device, wherein the anode welding head, the cathode welding head, the anode welding head driving device and the cathode welding head are arranged on the welding bracket; the positive welding head and the negative welding head are positioned above the turntable; the positive welding head driving device is vertically arranged at the upper part of the welding bracket, and the output end of the positive welding head driving device is connected with the positive welding head; the negative welding head driving device is vertically arranged at the lower part of the welding bracket, and the output end of the negative welding head driving device is connected with the negative welding head; the material pushing device is arranged in the middle of the welding bracket, and the output end of the material pushing device is movably positioned between the anode welding head and the cathode welding head.

As a preferred embodiment: the negative plug blanking shaping mechanism comprises a negative plug blanking support, a negative plug blanking assembly arranged on the negative plug blanking support, a negative plug shaping support and a negative plug shaping assembly arranged on the negative plug shaping support, the negative plug blanking assembly comprises a negative plug clamping cylinder for clamping a negative plug, a carbon crystal clamping cylinder for clamping carbon crystals, a lifting driving device for driving the negative plug clamping cylinder and the carbon crystal clamping cylinder to lift synchronously, and a longitudinal moving device for driving the negative plug clamping cylinder and the carbon crystal clamping cylinder to move longitudinally and synchronously, the longitudinal moving device is arranged on the cathode plug blanking bracket, the lifting driving device is arranged on the output end of the longitudinal moving device, the negative plug clamping cylinder and the carbon crystal clamping cylinder are arranged on the output end of the lifting driving device; this negative pole plug plastic support is located negative pole plug unloading support side by, this negative pole plug plastic subassembly is including negative pole plug fixing base, the brilliant fixing base of carbon and be used for driving the brilliant fixing base of carbon and be close to or keep away from and angular adjustment's plastic drive assembly for negative pole plug fixing base, the negative pole plug fixed slot that is used for placing the negative pole plug has on this negative pole plug fixing base, the brilliant fixed slot of carbon that is used for placing the carbon has on this brilliant fixing base of carbon, the output of this plastic drive assembly links to each other with the brilliant fixing base of carbon.

As a preferred embodiment: the negative plug reshaping component further comprises a first base, and the negative plug fixing seat is installed on the first base.

As a preferred embodiment: the shaping driving assembly comprises a second base, a longitudinal driving cylinder and a transverse driving cylinder, the longitudinal driving cylinder is used for driving the second base to be close to or far away from the first base, the transverse driving cylinder is used for driving the carbon crystal fixing seat to carry out angle adjustment, the longitudinal driving cylinder is installed on the first base, and the shaft end of the longitudinal driving cylinder is connected with the second base; the carbon crystal fixing seat is rotatably arranged on the second base; the transverse driving cylinder is arranged on the second base, and the shaft end of the transverse driving cylinder is connected with the carbon crystal fixing seat.

As a preferred embodiment: a driving rod is transversely and slidably arranged on the second base, and the front end of the driving rod is movably connected with the carbon crystal fixing seat; the transverse driving cylinder is transversely arranged on the second base, and the shaft end of the transverse driving cylinder is connected with the rear end of the driving rod.

As a preferred embodiment: one end of the carbon crystal fixing seat is pivoted on the first base, and the carbon crystal fixing groove is arranged on the pivoting end of the carbon crystal fixing seat; the front end of the driving rod is movably connected with the other end of the carbon crystal fixing seat; the negative plug holder is close to the pivot end of the carbon crystal holder.

As a preferred embodiment: the bar-shaped hollow groove is formed in one end of the carbon crystal fixing seat, the roller matched with the bar-shaped hollow groove is rotatably arranged at the front end of the driving rod, and the roller rolls in the bar-shaped hollow groove along with the pushing of the transverse driving cylinder to drive the carbon crystal fixing seat to rotate relative to the second base.

As a preferred embodiment: the end of the carbon crystal fixing seat connected with the driving rod is provided with a limiting hook part, a limiting step is arranged on the second base corresponding to the limiting hook part, and the limiting hook part is detachably abutted to the limiting step along with the rotation of the carbon crystal fixing seat.

As a preferred embodiment: the frame is provided with a bearing platform which is positioned above the turntable, and the bearing platform is provided with a material moving mechanism which is used for transferring materials on the corresponding feeding mechanism to a turntable loading jig corresponding to the positive plug feeding mechanism, the negative plug feeding mechanism, the first carbon crystal feeding mechanism and the second carbon crystal feeding mechanism respectively.

As a preferred embodiment: the material moving mechanism comprises a material clamping cylinder, a lifting driving cylinder for driving the material clamping cylinder to lift, and a longitudinal driving cylinder for driving the material clamping cylinder to longitudinally reciprocate relative to the bearing table, wherein the lifting driving cylinder is arranged at the output end of the longitudinal driving cylinder, and the material clamping cylinder is arranged at the output end of the lifting driving cylinder.

An operation method of the carbon crystal plug welding machine for the motor end cover comprises the following steps:

s1, the negative plug feeding mechanism feeds the negative plug into the negative plug placing groove of the placing jig on the turntable, the turntable rotates, and the placing jig with the negative plug is rotated to correspond to the positive plug feeding mechanism;

s2, the positive plug feeding mechanism feeds the positive plug into the positive plug placing groove of the discharging jig; the turntable rotates the discharging jig loaded with the negative plug and the positive plug in sequence to correspond to the first carbon crystal feeding mechanism and the second carbon crystal feeding mechanism, the first carbon crystal is placed in a first carbon crystal placing groove of the discharging jig, and the second carbon crystal is placed in a second carbon crystal placing groove of the discharging jig;

s3, the turntable continues to rotate, the discharging jig loaded with the positive plug, the negative plug, the first carbon crystal and the second carbon crystal is rotated to a welding mechanism, the welding mechanism firstly welds the negative plug and the second carbon crystal and then welds the positive plug and the first carbon crystal;

s4, after welding, the rotating disc rotates the cathode plug and the second carbon crystal which are connected into a whole to the cathode plug blanking shaping mechanism, the cathode plug blanking shaping mechanism carries out blanking shaping on the welded cathode plug and the second carbon crystal, and discharging is transferred;

s5, the positive plug and the first carbon crystal which are connected into a whole are rotated to the positive plug blanking shaping mechanism by the turntable, and the positive plug blanking shaping mechanism carries out blanking shaping on the welded positive plug and the first carbon crystal and transfers the discharged materials.

Compared with the prior art, the carbon crystal welding machine has the advantages that the carbon crystal welding machine for assembling the end cover of the motor is formed by integrating the turntable with the plurality of discharging jigs, the anode plug feeding mechanism, the cathode plug feeding mechanism, the first carbon crystal feeding mechanism, the second carbon crystal feeding mechanism welding mechanism, the anode plug blanking shaping mechanism and the cathode plug blanking shaping mechanism on the frame, the automatic feeding, welding, blanking and shaping operations of the anode plug, the cathode plug, the first carbon crystal and the second carbon crystal are realized, the automation degree of the end cover assembling is improved, and the production efficiency and the product quality are improved; meanwhile, a large amount of manual labor is reduced, and the production cost is saved.

To more clearly illustrate the structural features and effects of the present invention, the following detailed description is given with reference to the accompanying drawings and specific embodiments.

Drawings

FIG. 1 is a perspective view of the present invention showing a first perspective view of the whole machine;

FIG. 2 is a perspective view of the whole machine of the present invention from a second perspective;

FIG. 3 is a schematic top view of the present invention;

FIG. 4 is a perspective view of the material moving mechanism of the present invention;

FIG. 5 is a perspective view of another material moving mechanism according to the present invention;

FIG. 6 is a schematic perspective view of a positive plug feeding mechanism according to the present invention;

FIG. 7 is a perspective view of a loading fixture according to the present invention;

FIG. 8 is a perspective view of another view of the loading fixture of the present invention;

FIG. 9 is a perspective view of the welding mechanism of the present invention;

FIG. 10 is a perspective view of another welding mechanism of the present invention;

FIG. 11 is a schematic view of a negative plug blanking and shaping mechanism according to the present invention;

FIG. 12 is a perspective view of the negative plug reforming assembly of the present invention;

FIG. 13 is a perspective view of another embodiment of the present invention;

fig. 14 is a perspective view of another negative plug reforming assembly according to the present invention;

fig. 15 is a perspective view of the shaping assembly of the positive plug of the present invention.

Detailed Description

The invention is shown in fig. 1 to 15, a carbon crystal plug welding machine for assembling a motor end cover and an operation method thereof, the carbon crystal plug welding machine comprises a frame 10, a turntable 20 arranged on the frame 10, a plurality of discharging jigs 30, a positive plug feeding mechanism 40 for feeding a positive plug, a negative plug feeding mechanism 50 for feeding a negative plug, a first carbon crystal feeding mechanism 60 for feeding a first carbon crystal, a second carbon crystal feeding mechanism 70 for feeding a second carbon crystal, a welding mechanism 80 for welding the first carbon crystal and the positive plug and welding the second carbon crystal and the negative plug, a positive plug blanking shaping mechanism 90 and a negative plug blanking shaping mechanism 100, wherein:

the rack 10 is provided with a bearing table 11, the bearing table 11 is located above the turntable 20, and the bearing table 11 is provided with a material moving mechanism 12 corresponding to the positive plug feeding mechanism 40, the negative plug feeding mechanism 50, the first carbon crystal feeding mechanism 60, and the second carbon crystal feeding mechanism 70, respectively, for transferring the material on the corresponding feeding mechanism to the feeding jig 30 on the turntable 20. The material moving mechanism 12 includes a material clamping cylinder 121, a lifting driving cylinder 122 for driving the material clamping cylinder 121 to lift, a longitudinal driving cylinder 123 for driving the material clamping cylinder 121 to reciprocate longitudinally relative to the plummer 11, and a rotating driving cylinder 125 for driving the material clamping cylinder 121 to rotate, wherein the lifting driving cylinder 122 is installed at an output end of the longitudinal driving cylinder 123, the rotating driving cylinder 125 is installed at an output end of the lifting driving cylinder 122, and the material clamping cylinder 121 is installed at an output end of the rotating driving cylinder 125. Furthermore, a horizontal driving cylinder 124 capable of driving the material clamping cylinder 121 to move horizontally is added to the second carbon crystal feeding mechanism 70, the vertical driving cylinder 122 is installed at the output end of the vertical driving cylinder 123, the horizontal driving cylinder 124 is installed at the output end of the vertical driving cylinder 122, the rotary driving cylinder 125 is installed at the output end of the horizontal driving cylinder 124, and the material clamping cylinder 121 is installed at the output end of the rotary driving cylinder 125. A support base 13 for controlling the controllers of the above mechanisms is provided on the frame 10, and the support base 13 is located above the susceptor 11.

The turntable 20 is rotatably mounted on the frame 10; the plurality of discharging jigs 30 are arranged at intervals along the circumferential direction of the turntable 20, and each discharging jig 30 is provided with a positive plug placing groove 343 for placing a positive plug, a first carbon crystal placing groove 311 for placing a first carbon crystal, a negative plug placing groove 333 for placing a negative plug, and a second carbon crystal placing groove 321 for placing a second carbon crystal; the negative plug feeding mechanism 50, the positive plug feeding mechanism 40, the first carbon crystal feeding mechanism 60, the second carbon crystal feeding mechanism 70, the welding mechanism 80, the positive plug blanking shaping mechanism 90 and the negative plug blanking shaping mechanism 100 are sequentially arranged on the periphery of the turntable 20 along the rotation direction of the turntable 20.

The placing jig 30 includes a first carbon crystal placing seat 31 for placing the first carbon crystal, a second carbon crystal placing seat 32 for placing the second carbon crystal, a negative plug placing block 33 for placing a negative plug, a positive plug placing block 34 for placing a positive plug, a negative plug turning driving component 35 for driving the negative plug placing block 33 to turn over, and a positive plug turning driving component 34 for driving the positive plug to turn over, wherein the first carbon crystal placing seat 31 is provided with the first carbon crystal placing groove 311, the second carbon crystal placing seat 32 is provided with the second carbon crystal placing groove 321, the positive plug placing block 34 is provided with the positive plug placing groove 343, and the negative plug placing block 33 is provided with the negative plug placing groove 333; and the negative plug placing block 33 is positioned beside the first carbon crystal placing seat 31, the positive plug placing block 34 is positioned beside the second carbon crystal placing seat 32, the output end of the negative plug overturning driving component 35 is connected with the negative plug placing block 33, and the output end of the positive plug overturning driving component 36 is connected with the positive plug placing block 34.

The discharge jig 30 further includes a base 37, and the first carbon crystal holder 31 and the second carbon crystal holder 32 are respectively mounted on the base 37; a negative plug base 371 used for installing a negative plug placing block 33 and a positive plug base 372 used for installing a positive plug placing block 34 are arranged on the base 37, the negative plug base 371 is positioned beside the first carbon crystal placing base 31, the positive plug base 372 is positioned beside the second carbon crystal placing base 32, the negative plug placing block 33 is installed on the negative plug base 371 in a turnover mode, and the positive plug placing block 34 is installed on the positive plug base 372 in a turnover mode; the negative plug turning driving assembly 35 is mounted on a negative plug base 371, and comprises a driving rod 351 and a linkage rod 352, wherein the linkage rod 352 is connected between the driving rod 351 and the negative plug placing block 33; the positive plug flipping driving assembly 36 is mounted on the positive plug base 372, and includes a driving rod 361 and a linkage rod 362, and the linkage rod 362 is connected between the driving rod 361 and the positive plug placing block 34.

The negative plug base 371 is provided with a negative plug limiting block 3711 for turning over and limiting the negative plug placing block 33, and the negative plug placing block 33 is detachably matched with the negative plug limiting block 3711; be provided with on anodal plug base 372 and be used for placing piece 34 to anodal plug and overturn spacing anodal plug stopper 3721, anodal plug is placed piece 34 and is placed the upset of piece 34 with anodal plug stopper 3721 detachable cooperation in order to place piece 34 to anodal plug and carry on spacingly, prevents that its upset is excessive, and the piece also has the same function is placed to the negative pole plug.

A spring 363 is disposed between the driving rod 361 and the positive plug base 372 of the positive plug overturn driving assembly 36, the spring 363 is sleeved outside the driving rod 361, and the spring 363 abuts between the positive plug base 372 and the end of the driving rod 361; a spring 353 is disposed between the driving rod 351 of the negative plug flipping driving assembly 35 and the negative plug base 371, the spring 353 is sleeved outside the driving rod 351, and the spring 353 abuts between the negative plug base 371 and the end of the driving rod 351.

This blowing tool 30 has two sets of first carbon crystal and places seat 31, block 33 and two sets of negative pole plug upset drive assembly 35 are placed to two sets of negative pole plugs, seat 31 is placed to these two sets of first carbon crystals, block 33 and two sets of negative pole plug upset drive assembly 35 one-to-one each other are placed to two sets of negative pole plugs, and above-mentioned negative pole plug base 371 has two extension arms 3712, two sets of negative pole plugs are placed block 33 one-to-one and are installed on two extension arms 3712, one of them first carbon crystal is placed seat 31 and is located one of them negative pole plug and place that block 33 inclines other, another first carbon crystal is placed seat 31 and is located another negative pole plug and places that block 33 inclines other.

The driving rod 351 of the negative plug turning driving assembly 35 can be elastically and telescopically mounted on the negative plug base 371, the negative plug placing block 33 can be rotatably mounted on the side wall of the negative plug base 371, one end of the linkage rod 351 of the negative plug turning driving assembly 35 is fixedly connected with the negative plug placing block 33, and the other end of the linkage rod 351 is movably connected with the front end of the driving rod 351; the driving rod 361 of the positive plug turning driving component 36 can be elastically and telescopically mounted on the positive plug base 372, the positive plug placing block 34 can be rotatably mounted on the side wall of the positive plug base 372, one end of the linkage rod 362 of the positive plug turning driving component 36 is fixedly connected with the positive plug placing block 34, and the other end of the linkage rod is movably connected with the front end of the driving rod 361. The front end of the driving rod 351 of the negative plug flipping driving assembly 35 has a first opening 354, and a mating pin 355 is disposed at the end of the first opening 354; the linkage rod 352 is provided with a second opening 356, the linkage rod 352 is movably disposed in the first opening 354, and the engaging pin 355 is movably engaged with the second opening 356. The structure and principle of the positive plug turning driving assembly 36 and the negative plug turning driving assembly 35 are completely the same, and only the structure of the negative plug turning driving assembly 35 is labeled and described in the drawings.

In addition, the positive plug reverse driving assembly 36 and the negative plug reverse driving assembly 35 respectively further include a reverse driving cylinder 357 for pushing the driving rod 351 to extend forward, and an axial end of the reverse driving cylinder 357 is detachably abutted to an end of the driving rod 351. It should be noted that the positive plug inversion driving assembly 36 and the negative plug inversion driving assembly 35 can be driven by an inversion driving cylinder 357 located behind the driving rod 351, and the driving rod 361 of the positive plug inversion driving assembly 36 and the driving rod 351 of the negative plug inversion driving assembly 35 are alternatively connected to the shaft end of the inversion driving cylinder by the moving base 37. In this embodiment, the flipping driving cylinder is fixed behind the driving

rods

351 and 361, and the rotating of the turntable 20 can switch

different driving rods

351 and 361 to correspond to the shaft ends of the flipping driving cylinder, so as to realize the forward driving of

different driving rods

351 and 361.

The negative plug placing block 33 includes a pivot portion 331 and a limiting portion 332, the pivot portion 331 is pivotally connected to the negative plug base 371, and the linkage rod 352 of the negative plug turning driving component 35 is fixedly connected to the pivot portion 331; the limiting part 332 comprises an arc-shaped transition boss 3321 and two limiting platforms 3322, the two limiting platforms 3322 are integrally arranged on two sides of the arc-shaped transition boss 3321, and the arc-shaped transition boss 3321 is in arc-shaped rolling contact with the negative plug limiting block 3711; the two limiting platforms 3322 are alternatively abutted with the plane of the negative plug limiting block 3711 along with the turning of the negative plug placing block 33; the positive plug placing block 34 includes a pivot portion 341 and a limiting portion 342, the pivot portion 341 is pivotally connected to the positive plug base 372, and the linkage rod 362 of the positive plug turning driving component 36 is fixedly connected to the pivot portion 341; the limiting part 342 includes an arc-shaped transition boss 3421 and two limiting platforms 3422, the two limiting platforms 3422 are integrally disposed on two sides of the arc-shaped transition boss 3421, and the arc-shaped transition boss 3421 and the positive plug limiting block 3721 are in arc-shaped rolling contact; the two limiting platforms 3422 are alternatively abutted with the positive plug limiting block 3721 plane along with the turning of the positive plug placing block 34. The negative plug placing groove 333 is disposed on the limiting portion 332 of the negative plug placing block 33 and is in reversible communication with the first carbon crystal placing groove 311; the positive plug placing groove 343 is disposed on the limiting portion 342 of the positive plug placing block 34 and is in reversible communication with the second carbon crystal placing groove 321.

The discharging mechanism 30 has the following working principle: before the positive plug and the negative plug are placed, a driving rod of the negative plug overturning driving component drives the positive plug placing block to overturn under the driving of an overturning driving cylinder, so that a positive plug placing groove of the positive plug placing block is vertically upward (so that the positive plug is inserted and mounted); after the insertion of the positive plug is finished, the driving rod drives the positive plug placing block to turn over, so that the positive plug placing groove is turned over to be in a horizontal state, at the moment, the first carbon crystal can be inserted into the first carbon crystal placing groove, and the positive plug is horizontally contacted with the first carbon crystal, so that the welding is facilitated; after the positive plug and the first carbon crystal are connected in a welding mode, the driving rod drives the positive plug placing block to turn over again, so that the positive plug placing groove of the positive plug placing block faces upwards vertically, and the whole machine plug and the first carbon crystal can be taken out vertically by other mechanisms matched with material taking. The discharging and turning principle of the negative plug and the second carbon crystal is the same as that of the positive plug and the first carbon crystal, and details are not repeated here, but the discharging jig is provided with two groups of discharging and turning driving mechanisms of the negative plug and the second carbon crystal for two types, and only one group is selected for use during actual use.

This drop feed mechanism places the seat through placing first carbon crystalline substance, the seat is placed to the second carbon crystalline substance, the piece is placed to the negative pole plug, the piece is placed to the positive pole plug, negative pole plug upset drive assembly and positive pole plug upset drive assembly combine together to realize that positive pole plug meets and the upset operation with the brilliant level of first carbon, negative pole plug and second carbon, provides convenience for the plug with the brilliant welding operation of carbon and get the material blowing. Therefore, the production speed is accelerated, and the production efficiency is improved.

The positive plug feeding mechanism 40 and the negative plug feeding mechanism 50 respectively comprise a vibration basin 41, a direct vibration feeder 42 and a rotating component 43 for rotating the positive plug or the negative plug from a horizontal state to a vertical state (the structure and the principle of the positive plug feeding mechanism 40 and the negative plug feeding mechanism 50 are the same, and the positive plug feeding mechanism 40 and the negative plug feeding mechanism 50 are described at present), wherein the vibration basin 41 is connected with the direct vibration feeder 42, and the discharge end of the direct vibration feeder 42 is connected with the rotating component 43; the rotating unit 43 includes an arc rotating block 431 and a rotating driving cylinder 432 for driving the arc rotating block 431 to rotate, and the arc rotating block 431 is located at the discharging end of the direct vibration feeder 42 and has a receiving groove 4311 for receiving the material at the discharging end of the direct vibration feeder 42. The positive plug and the negative plug are moved from the vibration basin 41 to the receiving groove 4311 through the direct vibration feeder 42 (in the initial state of the receiving groove 4311 of the arc-shaped rotating block 431, the receiving groove 4311 corresponds to the discharge end of the direct vibration feeder 42), the rotation driving cylinder 432 drives the arc-shaped rotating block 431 to rotate, the receiving groove 4311 rotates to be in a vertical state, and the positive plug or the negative plug is adjusted to be in a vertical state. The material clamping cylinder 121 of the material moving mechanism 12 transfers and inserts the positive plug or the negative plug in the material receiving slot 4311 into the discharging jig 30 under the matching driving of the longitudinal driving cylinder 123 and the lifting driving cylinder 122.

The first carbon crystal feeding mechanism 60 and the second carbon crystal feeding mechanism 70 have the same structure and principle, and now the first carbon crystal feeding mechanism 60 is used for explaining, the first carbon crystal feeding mechanism 60 includes a material loading table 61 for placing the first carbon crystal and a material loading driving cylinder 62 for driving the material loading table 61 to be close to the material moving mechanism 12 arranged corresponding to the first carbon crystal feeding mechanism 60, and the material loading driving cylinder 62 drives the material loading table 61 with the first carbon crystal to be placed below the corresponding material moving mechanism 12. The first carbon crystal feeding mechanism 60 and the second carbon crystal feeding mechanism 70 are respectively corresponding to the material clamping cylinder 121 of the material moving mechanism 12 to clamp and insert the first carbon crystal or the second carbon crystal on the material loading table onto the material placing jig 30.

The welding mechanism 80 comprises a welding bracket 81, an anode welding head 82, a cathode welding head 83, an anode welding head driving device 84 (air cylinder) for driving the anode welding head 82 to ascend and descend, a cathode welding head driving device 85 (air cylinder) for driving the cathode welding head 83 to ascend and descend and a material pushing device 86 (air cylinder) for driving materials between the anode welding head 82 and the cathode welding head 83, wherein the welding bracket 81 is arranged on the frame 10; the positive welding head 82 and the negative welding head 83 are positioned above the turntable 20; the positive welding head driving device 84 is vertically installed at the upper part of the welding bracket 81, and the output end of the positive welding head driving device is connected with the positive welding head 82; the negative electrode welding head driving device 85 is vertically arranged at the lower part of the welding bracket 81, and the output end of the negative electrode welding head driving device is connected with the negative electrode welding head 83; the pushing device 86 is mounted in the middle of the welding bracket 81, and the output end thereof is movably located between the positive welding head 82 and the negative welding head 83.

The welding mechanism 80 further comprises a base 87, the welding bracket 81 can be transversely slidably mounted on the base 87, a transverse driving device 88 (air cylinder) for driving the welding bracket 81 to transversely slide is mounted on the base 87, and an output end of the transverse driving device 88 is connected with the welding bracket 81. A guide rail is transversely arranged on the base 87, a guide groove is arranged on the side wall of the lower part of the welding bracket 81 corresponding to the guide rail, and the guide rail is matched with the guide groove in a sliding way. It should be noted that the welding mechanisms 80 are respectively arranged for welding the first carbon crystal and the positive electrode plug and welding the second carbon crystal and the negative electrode plug, the welding mechanism 80 for the first carbon crystal and the positive electrode plug does not have the transverse driving device 88, only the welding mechanism 80 for the second carbon crystal and the negative electrode plug has the transverse driving device 88, the purpose that the transverse driving device 88 is required for welding the second carbon crystal and the negative electrode plug is that the discharge jig 30 can accommodate two types of negative electrode plugs, and during actual welding, only one type of negative electrode plug is subjected to welding operation with the second carbon crystal; therefore, the transverse driving device 88 can be used for driving the positive welding head 82, the negative welding head 83 and the related components of the welding mechanism 80 to transversely move to the corresponding negative plug to realize product remodeling.

Moreover, pressure sensors are arranged at the positive welding head 82 and the negative welding head 83 of the welding mechanism 80, so that whether the pressure value meets the requirement when the plug and the carbon crystal are subjected to pressure welding can be detected, and if the pressure value does not meet the requirement, the plug and the carbon crystal are judged to be defective products and discharged; a position where the CCD photographing device can be installed is reserved on the turntable 20 corresponding to the next station of the welding mechanism, so that the subsequent installation of the CCD photographing device can perform photographing detection on the welding position of the plug and the carbon crystal, and whether the welding is qualified is judged.

The turntable 20 is provided with a brush 110 for removing the oxide layers formed on the positive welding head 82 and the negative welding head 83 of the welding mechanism 80 after welding, and along with the rotation of the turntable 20, the brush 110 reaches the welding mechanism 80 and collides with the positive welding head 82 and the negative welding head 83 to clean the oxide layers on the positive welding head 82 and the negative welding head 83.

The negative plug blanking shaping mechanism 100 comprises a negative plug blanking support 101, a negative plug blanking assembly 102 arranged on the negative plug blanking support 101, a negative plug shaping support 103 and a negative plug shaping assembly 104 arranged on the negative plug shaping support 103, wherein the negative plug blanking assembly 102 comprises a negative plug clamping cylinder 1021 for clamping a negative plug, a carbon crystal clamping cylinder 1022 for clamping carbon crystals, a lifting driving device 1023 (cylinder) for driving the negative plug clamping cylinder 1021 and the carbon crystal clamping cylinder 1022 to synchronously lift, a longitudinal moving device 1024 (cylinder) for driving the negative plug clamping cylinder 1021 and the carbon crystal clamping cylinder 1022 to synchronously and longitudinally move, and a rotation driving device 1025 for driving the rotation angle of the negative plug clamping cylinder 1021 and the carbon crystal clamping cylinder 1022, the longitudinal moving device 1024 is arranged on the negative plug blanking support 101, the lifting driving device 1023 is arranged on the output end of the longitudinal moving device 1024, the rotating driving device 1025 is arranged on the output end of the lifting driving device 1023, and the negative plug material clamping cylinder 1021 and the carbon crystal material clamping cylinder 1022 are arranged on the output end of the rotating driving device 1025; correspond negative pole plug and the brilliant benefit that sets up the double-layered material cylinder respectively of carbon and be two double-layered material cylinders and can correspond negative pole plug and the brilliant synchronous clamp of carbon and get, the dynamics is unbalanced when preventing to adopt a double-layered material cylinder to press from both sides two materials (negative pole plug and carbon are brilliant in the standing groove, when adopting a double-layered material cylinder to press from both sides and getting one of them material, will lead to another material to be dragged when warping and lead to negative pole plug and the brilliant position each other of carbon to take place to distort and cause the material to damage (press from both sides when getting, negative pole plug and the brilliant welding of carbon are in the same place). In addition, a material clamping cylinder set 1026 (another negative plug material clamping cylinder and carbon crystal material clamping cylinder) which can synchronously lift with the negative plug material clamping cylinder 1021 and the carbon crystal material clamping cylinder 1022 is further arranged on the output end of the lifting driving device, the material clamping cylinder set 1026 is driven by the longitudinal driving device 1024 to cooperate with the negative plug material clamping cylinder 1021 and the carbon crystal material clamping cylinder 1022 to realize the material clamping rotation angle of the plug material clamping cylinder 1021 and the carbon crystal material clamping cylinder 1022, and meanwhile, the material clamping cylinder set 1026 can carry out the material clamping transfer of another set of materials, so that the time interval is fully utilized, and the production efficiency is improved.

The negative plug shaping support 103 is located beside the negative plug blanking support 101, the negative plug shaping assembly 104 includes a negative plug fixing seat 1041, a carbon crystal fixing seat 1042 and a shaping driving assembly 1043 for driving the carbon crystal fixing seat 1042 to approach or depart from the negative plug fixing seat 1041 and to adjust the angle, a negative plug fixing groove 10411 for placing a negative plug is provided on the negative plug fixing seat 1041, a carbon crystal fixing groove 10421 for placing a carbon crystal is provided on the carbon crystal fixing seat 1042, and the output end of the shaping driving assembly 1043 is connected with the carbon crystal fixing seat 1042. The negative plug shaping component 104 further includes a first base 1044, and the negative plug fixing seat 1041 is installed on the first base 1044. The shaping driving assembly 1043 comprises a second base 10431, a longitudinal driving cylinder 10432 for driving the second base 10431 to approach or depart from the first base 1044, and a transverse driving cylinder 10433 for driving the carbon crystal fixing seat 1042 to perform angle adjustment, wherein the longitudinal driving cylinder 10432 is installed on the first base 1044, and the shaft end of the longitudinal driving cylinder 10432 is connected with the second base 10431; the carbon crystal fixing base 1042 is rotatably mounted on the second base 10431; the transverse driving cylinder 10433 is mounted on the second base 10431, and the shaft end thereof is connected with the carbon crystal fixing seat 1042.

A driving rod 10434 is transversely slidably mounted on the second base 10431, and the front end of the driving rod 10434 is movably connected with the carbon crystal fixing seat 1042; the transverse driving cylinder 10433 is transversely installed on the second base 10431, and the shaft end thereof is connected with the rear end of the driving rod 10434.

One end of the carbon crystal fixing base 1042 is pivoted on the first base 1044, and the carbon crystal fixing groove 10421 is disposed on the pivoted end of the carbon crystal fixing base 1042; the front end of the driving rod 10434 is movably connected with the other end of the carbon crystal fixing seat 1042; the negative plug fixing seat 1041 is close to the pivot end of the carbon crystal fixing seat 1042.

A strip-shaped hollow-out slot 10422 is formed at one end of the carbon crystal fixing seat 1042, a roller 10435 adapted to the strip-shaped hollow-out slot 10422 is rotatably disposed at the front end of the driving rod 10434, and the roller 10435 is pushed by the transverse driving cylinder 10433 to roll in the strip-shaped hollow-out slot 10422 to drive the carbon crystal fixing seat 1042 to rotate relative to the second base 10431.

A limit hook 10423 is disposed at one end of the carbon crystal holder 1042 connected to the driving rod 10434, a limit step 10436 is disposed on the second base 10431 corresponding to the limit hook 10423, and the limit hook 10423 is detachably abutted to the limit step 10436 along with the rotation of the carbon crystal holder 1042.

A limit bolt 10437 is disposed on the second base 10431 for abutting the carbon crystal holder 1042 when the carbon crystal holder 1042 rotates to prevent excessive rotation. A limiting bolt 10437 for preventing the second base 10431 from sliding excessively in the longitudinal direction is disposed on the first base 1044.

In addition, a driving cylinder 1031 for driving the negative plug shaping component 104 to approach or separate from the negative plug blanking component 102 is further provided on the negative plug shaping bracket 103, and the negative plug shaping component 104 is mounted on the driving cylinder 1031.

The working principle of the negative plug blanking shaping mechanism is as follows: after the negative plug and the second carbon crystal are correspondingly placed in the negative plug fixing groove and the carbon crystal fixing groove, the transverse driving cylinder drives the carbon crystal fixing seat to rotate for a certain angle, so that the second carbon crystal phase on the carbon crystal fixing seat is twisted relative to the negative plug; then, the cylinder is driven longitudinally to drive the second base to move close to the first base, so that a carbon crystal main body of a second carbon crystal (the carbon crystal comprises the carbon crystal main body and a metal wire connected to the carbon crystal main body, and the metal wire is connected with the negative plug in a welding mode) and the negative plug are moved close to form, and the shaping operation of the negative plug and the second carbon crystal is completed; the negative plug clamping cylinder and the carbon crystal clamping cylinder synchronously clamp the negative plug and the second carbon crystal and then rotate the angle to perform discharging operation.

This negative pole plug unloading plastic mechanism has realized the brilliant plastic of negative pole plug and second carbon, has settled and has got the rotatory automation mechanized operation of material through adopting negative pole plug unloading subassembly and negative pole plug plastic subassembly, has saved a large amount of hand labor, has effectively promoted production efficiency's improvement, has reduced manufacturing cost, simultaneously, has improved product quality.

It should be noted that, in this embodiment, there are two types of negative plugs, and the negative plug blanking reshaping mechanism 100 is adopted for blanking reshaping after welding one type of negative plug with the second carbon crystal; and the blanking shaping mechanism of the cathode plug after the cathode plug of the other type is welded with the second carbon crystal is adopted. In actual operation, only one type of the negative electrode plug is selected to be welded with the second carbon crystal. Correspondingly, there are two negative plug feeding mechanisms 50 to perform feeding operation corresponding to two types of negative plugs.

A second type of negative plug blanking shaping mechanism is described below, which only has a negative plug shaping component 104 different from the first type of negative plug blanking shaping mechanism, and the other structures and principles are completely the same; the negative plug shaping component of the second type negative plug blanking shaping mechanism comprises a negative plug fixing seat 1041, a carbon crystal fixing seat 1042 and a shaping driving component 1043 for driving the carbon crystal fixing seat 1042 to approach or depart from the negative plug fixing seat 1041, a negative plug fixing groove 10411 for placing a negative plug is arranged on the negative plug fixing seat 1041, a carbon crystal fixing groove 10421 for placing carbon crystals is arranged on the carbon crystal fixing seat 1042, and the output end of the shaping driving component 1043 is connected with the carbon crystal fixing seat 1042; the shaping driving assembly 1043 comprises a cylinder 10438 and a pull rod 10439 installed at the shaft end of 10438, and the carbon crystal fixing seat 1042 is connected with the end of the pull rod 10439.

The positive plug blanking shaping mechanism 90 only has a plug shaping component part different from the negative plug blanking shaping mechanism of the first type, and the other structures and principles are completely the same; the positive plug shaping component 91 of the positive plug blanking shaping mechanism comprises a fixed seat 911, a transverse driving cylinder 912 and a longitudinal driving cylinder 913, wherein a positive plug fixing groove 9111 for fixing a positive plug and a carbon crystal fixing groove 9112 for placing carbon crystals are arranged on the fixed seat 911; the transverse driving cylinder 912 and the longitudinal driving cylinder 913 are vertically distributed beside the fixed seat 911, pushing blocks 914 are respectively arranged at the output ends of the transverse driving cylinder 912 and the longitudinal driving cylinder 913, and the pushing blocks 914 push the carbon crystals in the carbon crystal fixing grooves 9112 from two directions under the pushing of the respective cylinders so as to adjust the angle of the carbon crystals relative to the positive plug.

It should be noted that the negative plug reshaping component of the two negative plug blanking reshaping mechanisms 100 and the positive plug reshaping component of the complete machine plug blanking reshaping mechanism 90 can be used interchangeably according to the specific shape requirements of the plug and the carbon crystal, so as to meet the carbon crystal reshaping requirements of plugs in various forms.

And a dust removing device 120 for performing a dust removing operation on the discharging jig 30 after the positive plug and the negative plug are both blanked and shaped is arranged on the turntable 20, the dust removing device 120 includes a dust suction pipe 121 and a fan (not shown), the dust suction pipe faces the discharging jig 30 on the turntable 20, and the dust suction pipe is driven by the fan to clean carbon crystal chips and dust on the discharging jig 30.

The working principle of the carbon crystal plug welding machine is as follows: selecting one of the negative plug feeding mechanisms 50 to feed the negative plug into the negative plug placing groove 333 of the placing jig 30 on the turntable 20, rotating the turntable 20, and rotating the placing jig 30 with the negative plug to correspond to the positive plug feeding mechanism 40; the positive plug feeding mechanism 40 feeds the positive plug into the positive plug placing groove 343 of the discharging jig 30; the turntable rotates the material placing jig 30 to correspond to the first carbon crystal feeding mechanism 60, the first carbon crystal is placed in the first carbon crystal placing groove 311 of the material placing jig 30, and similarly, the second carbon crystal is placed in the second carbon crystal placing groove 321 of the material placing jig 30; the turntable continues to rotate to the welding mechanism, the negative plug and the second carbon crystal are welded, and then the positive plug and the first carbon crystal are welded; after the welding is completed, the turntable 20 carries the cathode plug and the second carbon crystal, the anode plug and the first carbon crystal which are connected into a whole, and the discharging jig 30 sequentially passes through the cathode plug discharging and shaping mechanism 100 and the anode plug discharging and shaping mechanism 90 to perform discharging and shaping operations and transfer discharging.

The carbon crystal plug welding machine has the advantages that the carbon crystal plug welding machine for motor end cover assembly is formed by integrating the rotary table with the plurality of discharging jigs, the anode plug feeding mechanism, the cathode plug feeding mechanism, the first carbon crystal feeding mechanism, the second carbon crystal feeding mechanism welding mechanism, the anode plug blanking shaping mechanism and the cathode plug blanking shaping mechanism on the machine frame, so that the automatic feeding, welding, blanking and shaping operations of the anode plug, the cathode plug, the first carbon crystal and the second carbon crystal are realized, the automation degree of end cover assembly is improved, and the production efficiency and the product quality are improved; meanwhile, a large amount of manual labor is reduced, and the production cost is saved.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so that any minor modifications, equivalent changes and modifications made to the above embodiments according to the technical spirit of the present invention are within the technical scope of the present invention.

Claims

1. The utility model provides a brilliant plug welding machine of carbon for motor end cover equipment which characterized in that: the device comprises a rack, a turntable, a plurality of discharging jigs, a positive plug feeding mechanism, a negative plug feeding mechanism, a first carbon crystal feeding mechanism, a second carbon crystal feeding mechanism, a welding mechanism, a positive plug blanking and shaping mechanism and a negative plug blanking and shaping mechanism, wherein the turntable is arranged on the rack; the plurality of discharging jigs are arranged at intervals along the circumferential direction of the turntable, and each jig is respectively provided with a positive plug placing groove for placing a positive plug, a first carbon crystal placing groove for placing first carbon crystals, a negative plug placing groove for placing a negative plug and a second carbon crystal placing groove for placing second carbon crystals; the negative plug feeding mechanism, the positive plug feeding mechanism, the first carbon crystal feeding mechanism, the second carbon crystal feeding mechanism, the welding mechanism, the positive plug discharging and shaping mechanism and the negative plug discharging and shaping mechanism are sequentially arranged on the periphery of the rotary table along the rotation direction of the rotary table.

2. The carbon crystal plug welding machine for assembling the motor end cover according to claim 1, wherein: the material placing jig comprises a first carbon crystal placing seat for placing the first carbon crystal, a second carbon crystal placing seat for placing the second carbon crystal, a negative plug placing block for placing a negative plug, a positive plug placing block for placing a positive plug, a negative plug overturning driving component for driving the negative plug placing block to overturn and a positive plug overturning driving component for driving the positive plug to overturn, wherein the first carbon crystal placing seat is provided with the first carbon crystal placing groove; and the negative plug placing block is positioned beside the first carbon crystal placing seat, the positive plug placing block is positioned beside the second carbon crystal placing seat, the output end of the negative plug overturning driving component is connected with the negative plug placing block, and the output end of the positive plug overturning driving component is connected with the positive plug placing block.

3. The carbon crystal plug welding machine for assembling the motor end cover according to claim 2, wherein: the material placing jig further comprises a base, and the first carbon crystal placing seat and the second carbon crystal placing seat are respectively installed on the base; a negative plug base used for installing a negative plug placing block and a positive plug base used for installing a positive plug placing block are arranged on the base, the negative plug base is positioned beside the first carbon crystal placing base, the positive plug base is positioned beside the second carbon crystal placing base, the negative plug placing block is installed on the negative plug base in a turnover mode, and the positive plug placing block is installed on the positive plug base in a turnover mode; the negative plug overturning driving component is arranged on the negative plug base and comprises a driving rod and a linkage rod, and the linkage rod is connected between the driving rod and the negative plug placing block; the positive plug overturning driving assembly is arranged on the positive plug base and comprises a driving rod and a linkage rod, and the linkage rod is connected between the driving rod and the positive plug placing block.

4. The carbon crystal plug welding machine for assembling the motor end cover according to claim 3, wherein: the driving rod of the negative plug overturning driving assembly can be elastically and telescopically arranged on a negative plug base, the negative plug placing block can be rotatably arranged on the side wall of the negative plug base, one end of a linkage rod of the negative plug overturning driving assembly is fixedly connected with the negative plug placing block, and the other end of the linkage rod is movably connected with the front end of the driving rod; the drive rod of the positive plug overturning drive assembly can be elastically and telescopically arranged on the positive plug base, the positive plug placing block can be rotatably arranged on the side wall of the positive plug base, one end of the linkage rod of the positive plug overturning drive assembly is fixedly connected with the positive plug placing block, and the other end of the linkage rod is movably connected with the front end of the drive rod.

5. The carbon crystal plug welding machine for assembling the motor end cover according to claim 4, wherein: the front end of the driving rod is provided with a first opening, and the end part of the first opening is provided with a matching pin; the linkage rod is provided with a second opening, the linkage rod is movably positioned in the first opening, and the matching pin is movably matched with the second opening.

6. The carbon crystal plug welding machine for assembling the motor end cover according to claim 3, wherein: the negative plug base is provided with a negative plug limiting block for overturning and limiting the negative plug placing block, and the negative plug placing block is detachably matched with the negative plug limiting block; be provided with on anodal plug base and be used for placing the piece to anodal plug and overturn spacing anodal plug stopper, anodal plug is placed piece and anodal plug stopper detachable cooperation.

7. The carbon crystal plug welding machine for assembling the motor end cover according to claim 1, wherein: the welding mechanism comprises a welding bracket, an anode welding head, a cathode welding head, an anode welding head driving device, a cathode welding head driving device and a material pushing device, wherein the anode welding head, the cathode welding head, the anode welding head driving device and the cathode welding head are arranged on the welding bracket; the positive welding head and the negative welding head are positioned above the turntable; the positive welding head driving device is vertically arranged at the upper part of the welding bracket, and the output end of the positive welding head driving device is connected with the positive welding head; the negative welding head driving device is vertically arranged at the lower part of the welding bracket, and the output end of the negative welding head driving device is connected with the negative welding head; the material pushing device is arranged in the middle of the welding bracket, and the output end of the material pushing device is movably positioned between the anode welding head and the cathode welding head.

8. The carbon crystal plug welding machine for assembling the motor end cover according to claim 1, wherein: the negative plug blanking shaping mechanism comprises a negative plug blanking support, a negative plug blanking assembly arranged on the negative plug blanking support, a negative plug shaping support and a negative plug shaping assembly arranged on the negative plug shaping support, the negative plug blanking assembly comprises a negative plug clamping cylinder for clamping a negative plug, a carbon crystal clamping cylinder for clamping carbon crystals, a lifting driving device for driving the negative plug clamping cylinder and the carbon crystal clamping cylinder to lift synchronously, and a longitudinal moving device for driving the negative plug clamping cylinder and the carbon crystal clamping cylinder to move longitudinally and synchronously, the longitudinal moving device is arranged on the cathode plug blanking bracket, the lifting driving device is arranged on the output end of the longitudinal moving device, the negative plug clamping cylinder and the carbon crystal clamping cylinder are arranged on the output end of the lifting driving device; this negative pole plug plastic support is located negative pole plug unloading support side by, this negative pole plug plastic subassembly is including negative pole plug fixing base, the brilliant fixing base of carbon and be used for driving the brilliant fixing base of carbon and be close to or keep away from and angular adjustment's plastic drive assembly for negative pole plug fixing base, the negative pole plug fixed slot that is used for placing the negative pole plug has on this negative pole plug fixing base, the brilliant fixed slot of carbon that is used for placing the carbon has on this brilliant fixing base of carbon, the output of this plastic drive assembly links to each other with the brilliant fixing base of carbon.

9. The carbon crystal plug welding machine for assembling the motor end cover according to claim 8, wherein: the negative plug reshaping component further comprises a first base, and the negative plug fixing seat is installed on the first base.

10. The carbon crystal plug welding machine for assembling the motor end cover according to claim 9, wherein: the shaping driving assembly comprises a second base, a longitudinal driving cylinder and a transverse driving cylinder, the longitudinal driving cylinder is used for driving the second base to be close to or far away from the first base, the transverse driving cylinder is used for driving the carbon crystal fixing seat to carry out angle adjustment, the longitudinal driving cylinder is installed on the first base, and the shaft end of the longitudinal driving cylinder is connected with the second base; the carbon crystal fixing seat is rotatably arranged on the second base; the transverse driving cylinder is arranged on the second base, and the shaft end of the transverse driving cylinder is connected with the carbon crystal fixing seat.

11. The carbon crystal plug welding machine for assembling the motor end cover according to claim 10, wherein: a driving rod is transversely and slidably arranged on the second base, and the front end of the driving rod is movably connected with the carbon crystal fixing seat; the transverse driving cylinder is transversely arranged on the second base, and the shaft end of the transverse driving cylinder is connected with the rear end of the driving rod.

12. The carbon crystal plug welding machine for assembling the motor end cover according to claim 11, wherein: one end of the carbon crystal fixing seat is pivoted on the first base, and the carbon crystal fixing groove is arranged on the pivoting end of the carbon crystal fixing seat; the front end of the driving rod is movably connected with the other end of the carbon crystal fixing seat; the negative plug holder is close to the pivot end of the carbon crystal holder.

13. The carbon crystal plug welding machine for assembling the motor end cover according to claim 11, wherein: the bar-shaped hollow groove is formed in one end of the carbon crystal fixing seat, the roller matched with the bar-shaped hollow groove is rotatably arranged at the front end of the driving rod, and the roller rolls in the bar-shaped hollow groove along with the pushing of the transverse driving cylinder to drive the carbon crystal fixing seat to rotate relative to the second base.

14. The carbon crystal plug welding machine for assembling the motor end cover according to claim 13, wherein: the end of the carbon crystal fixing seat connected with the driving rod is provided with a limiting hook part, a limiting step is arranged on the second base corresponding to the limiting hook part, and the limiting hook part is detachably abutted to the limiting step along with the rotation of the carbon crystal fixing seat.

15. The carbon crystal plug welding machine for assembling the motor end cover according to claim 1, wherein: the frame is provided with a bearing platform which is positioned above the turntable, and the bearing platform is provided with a material moving mechanism which is used for transferring materials on the corresponding feeding mechanism to a turntable loading jig corresponding to the positive plug feeding mechanism, the negative plug feeding mechanism, the first carbon crystal feeding mechanism and the second carbon crystal feeding mechanism respectively.

16. The carbon crystal plug welding machine for assembling the motor end cover according to claim 15, wherein: the material moving mechanism comprises a material clamping cylinder, a lifting driving cylinder for driving the material clamping cylinder to lift, and a longitudinal driving cylinder for driving the material clamping cylinder to longitudinally reciprocate relative to the bearing table, wherein the lifting driving cylinder is arranged at the output end of the longitudinal driving cylinder, and the material clamping cylinder is arranged at the output end of the lifting driving cylinder.

17. A method of operating a carbon crystal plug welding machine for motor end caps as claimed in any one of claims 1 to 16, comprising the steps of: