CN107309567B

CN107309567B - Welding device for realizing battery reversing welding

Info

Publication number: CN107309567B
Application number: CN201710606294.6A
Authority: CN
Inventors: 周野; 郑晔; 杜海瑞; 徐友俊; 夏城源; 赵峰
Original assignee: Shenzhen Autolean Precision Automation Technology Co ltd
Current assignee: Shenzhen Autolean Precision Automation Technology Co ltd
Priority date: 2017-07-24
Filing date: 2017-07-24
Publication date: 2022-12-27
Anticipated expiration: 2037-07-24
Also published as: CN107309567A

Abstract

The invention relates to the field of automation equipment, and discloses a welding device for realizing battery reversing welding, which comprises a rack, a feeding module, a discharging module and a welding module connected with the feeding module and the discharging module, wherein the welding module comprises a conveying device, at least two welding devices arranged along the conveying direction of the conveying device and a steering device arranged between the welding devices, the conveying device receives a battery from the feeding module and drives the battery to sequentially pass through the welding devices and the steering device, the battery performs welding on a first end face at the first welding device, and performs steering at the steering device to enable a second end face to be positioned at a welding position, and the second welding device performs welding on the second end face. The invention can realize the welding operation of two end surfaces of the battery on one device without manual reversing, saves the steps of reinstallation and positioning during reversing, and greatly improves the working efficiency of battery welding.

Description

Welding device for realizing battery reversing welding

Technical Field

The invention relates to the field of automation equipment, in particular to a feeding module.

Background

The new energy is also called unconventional energy, and is different from traditional energy such as petroleum and coal in various energy forms, including rapidly developing lithium batteries, which have the advantages of long service life, high energy density and the like, and thus are widely applied to various fields such as portable electronic equipment and automobiles. The lithium battery may face the situation that weldments are welded on the front end face and the rear end face of the battery respectively in the production process, in the prior art, one end face of the battery is welded firstly, the other end face is welded after the welding of the one end face is completed and is reversed manually, and then the other end face is welded.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention provides a welding device for realizing battery reversing welding, which is used for solving the problem that the conventional welding device needs to consume a large amount of labor and time for reinstallation and positioning of a battery.

The technical scheme adopted by the invention for solving the technical problems is as follows:

the utility model provides a welding set for realizing battery switching-over welding, which comprises a frame, the material loading module, the unloading module and with the material loading module, the welding module that the unloading module is connected, the welding module includes conveyor, the welding set of at least two places that sets up along conveyor's direction of delivery and locate the device that turns to between the welding set, conveyor receives the battery that comes from the material loading module, and drive the battery and pass through welding set in proper order and turn to the device, the battery carries out the welding of first terminal surface in first welding set department, turn to so that second terminal surface is located the welding position turning to device department, the welding of second terminal surface is carried out in second welding set department.

As a further improvement mode of the above scheme, the feeding module comprises a feeding device, the feeding device comprises a base plate, a connecting plate, a power device and two or more battery acquisition devices, the power device is fixedly connected with the base plate, and the battery acquisition devices are slidably connected with the connecting plate;

the base plate is provided with sliding chutes corresponding to the battery acquisition devices, the distance between adjacent sliding chutes is gradually reduced along the moving direction of the connecting plate, and the driving rod fixedly connected to the battery acquisition devices extends into the corresponding sliding chutes and can slide along the grooves;

the feeding device moves to a feeding position after acquiring the battery through the battery acquisition device, and the power device drives the connecting plate to move relative to the base plate in the moving process and/or after moving, so as to drive the battery acquisition device to synchronously separate/draw close.

As a further improvement mode of the scheme, the feeding module further comprises a first clamping jaw, a second clamping jaw, a channel and a shifting lever, the first clamping jaw is located at an inlet of the channel, the second clamping jaw is located at an outlet of the channel, the battery is contained in a material tray, the material tray is conveyed to the inlet of the channel by the first clamping jaw and then driven by the shifting lever to move to a discharging position in the channel, the battery in the material tray is obtained at the discharging position by a feeding device, and the emptied material tray is conveyed to the outlet of the channel by the shifting lever and then is recycled by the second clamping jaw.

As a further improvement mode of the scheme, the battery loading device further comprises a mechanical arm arranged between the channel and the loading device, a battery cabin, a turnover device and a slide way, the mechanical arm moves a battery in a material tray located at the unloading position to the battery cabin, the battery cabin is provided with a cavity for accommodating the battery, the top of the slide way is connected with the cavity, the bottom of the slide way is communicated with the loading device, the battery cabin is rotatably connected with the rack and can rotate under the driving of the turnover device so as to drive the battery placed in the cavity to be switched from a vertical state to a horizontal state, and the battery in the horizontal state can roll down along the slide way.

As a further improvement mode of the scheme, the blanking module comprises a base, a slide way, a bearing plate, a conveyor belt and a power device, wherein the slide way is fixedly connected to the base, the top surface of the slide way is provided with an inclined surface, the highest end of the inclined surface is connected with the welding module, and the lowest end of the inclined surface is connected with the conveyor belt;

bearing plates are respectively arranged on two sides of the slide way, are connected with the base in a sliding way and can be relatively close to or far away from under the driving of a power device;

when the bearing plates are closed, the distance between the bearing plates is smaller than the length of the battery so as to bear the battery; when the bearing plates are far away, the distance between the bearing plates is larger than the length of the battery, and the battery falls onto the inclined plane of the slide way and then slides onto the conveyor belt through the inclined plane.

As a further improvement mode of the scheme, the conveying device comprises a bearing mechanism, a jacking mechanism and a driving mechanism, supporting devices fixedly connected with the rack are further arranged on two sides of the bearing mechanism, the distance between the supporting devices on the two sides is smaller than the length of the battery, and the battery conveying device is characterized in that

The jacking mechanism is fixedly connected with the bearing mechanism so as to drive the bearing mechanism to move in the vertical direction, and the driving mechanism is fixedly connected with the jacking mechanism so as to drive the jacking mechanism and the bearing mechanism to move in the horizontal direction;

and the bearing mechanism moves upwards relative to the supporting device, after the battery is jacked up to be separated from the supporting device, the bearing mechanism drives the battery to horizontally move to the next station, then the bearing mechanism descends, and the battery is placed on the supporting device and then reset, so that the cycle is realized.

As a further improvement mode of the scheme, the steering device comprises a steering base, a rotating shaft, a gripper and a steering power device, the steering power device is fixedly connected with the steering base, the gripper is used for acquiring the battery, is connected with the steering base through the rotating shaft and can rotate around the axis of the rotating shaft under the driving of the steering power device.

As a further improvement mode of the scheme, the welding module further comprises a battery fixing device, the battery fixing device comprises a battery fixing rack, a sucker rotating shaft and a rotating shaft driving device, the sucker is provided with a suction hole and is fixedly connected with the rotating shaft, and the battery fixing rack can rotate relative to the battery fixing rack under the driving of the rotating shaft driving device.

As a further improvement mode of the above scheme, the welding module further comprises a weldment transferring device, wherein the weldment transferring device comprises a material receiving rod, a connecting seat, a moving mechanism and a weldment transferring base plate;

the connecting seat is fixedly connected with the welding piece transferring base plate, the material receiving rod is rotatably connected with the connecting seat, and the welding piece transferring base plate is driven by the moving mechanism to move relative to the rack;

the receiving rod is driven by the moving mechanism after acquiring the weldment to enable the weldment to be in contact with the end face of the battery, and in the welding process, the receiving rod drives the weldment to synchronously rotate with the battery.

As a further improvement mode of the scheme, the welding module further comprises a weldment feeding device, and the weldment feeding device comprises a weldment feeding base plate, an ejection block, a guide pipe and a telescopic rod;

the ejection block is fixedly connected to the welding piece feeding substrate, a first via hole and a second via hole are formed in the ejection block, the first via hole penetrates through the ejection block from front to back, one end of the second via hole is communicated with the first via hole, and the other end of the second via hole is communicated with the guide pipe;

the telescopic rod can move in the first through hole;

the welding piece enters the first via hole through the guide pipe and the second via hole, and the telescopic rod pushes out the screw through the movement along the first via hole.

The invention has the beneficial effects that:

the invention can realize the welding operation of two end surfaces of the battery on one device without manual reversing, saves the steps of reinstallation and positioning during reversing, and greatly improves the working efficiency of battery welding.

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a top view of one embodiment of the present invention;

FIG. 2 is a top view of one embodiment of the feeding module of the present invention;

FIG. 3 is a schematic perspective view of one embodiment of a loading module of the present invention;

FIG. 4 is a schematic perspective view of one embodiment of a first jaw of the present invention;

FIG. 5 is a schematic perspective view of one embodiment of a tray of the present invention;

FIG. 6 is a perspective view of one embodiment of a second jaw of the present invention;

FIG. 7 is a perspective view of one embodiment of the channel and toggle of the present invention;

FIG. 8 is a schematic view of one embodiment of a loading device of the present invention;

FIG. 9 is a schematic perspective view of the material moving device of the present invention in one direction (hiding the robot);

FIG. 10 is a schematic perspective view of the material moving device of the present invention in another orientation (hidden robot);

FIG. 11 is a schematic perspective view of the material transfer device of the present invention (showing the robot arm);

FIG. 12 is a perspective view of one embodiment of a welding module of the present invention;

FIG. 13 is a perspective view of the hidden welding device of FIG. 12 at another angle with respect to the rest of the structure;

FIG. 14 is a schematic perspective view of one embodiment of the delivery device of the present invention;

FIG. 15 is a perspective view of one embodiment of the battery positioning device of the present invention;

FIG. 16 is a perspective view of one embodiment of a battery holding apparatus of the present invention;

FIG. 17 is a schematic perspective view of one embodiment of a weldment work feeding apparatus of the present invention;

FIG. 18 is a perspective view of a one-sided connector block of the present invention;

FIG. 19 is a perspective view of one embodiment of the weldment transfer device of the present invention;

FIG. 20 is a schematic cross-sectional view of an end of a collector bar according to the invention;

FIG. 21 is a schematic perspective view of one embodiment of a steering apparatus of the present invention;

fig. 22 is a schematic perspective view of a blanking module according to an embodiment of the present invention.

Detailed Description

The conception, the specific structure and the technical effects produced by the present invention will be clearly and completely described in conjunction with the embodiments and the attached drawings, so as to fully understand the objects, the schemes and the effects of the present invention. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.

It should be noted that, unless otherwise specified, when a feature is referred to as being "fixed" or "connected" to another feature, it can be directly fixed or connected to the other feature or indirectly fixed or connected to the other feature. Further, the description of up, down, left, right, front, rear, etc. used in the present invention is only with respect to the positional relationship of the respective constituent elements of the present invention with respect to each other in the drawings.

Furthermore, unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used in the description herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any combination of one or more of the associated listed items.

Referring to fig. 1, there is shown a perspective view of one embodiment of the present invention, with a portion of the housing hidden, the dashed box being for illustration purposes only. As shown in the figure, the battery welding device comprises a feeding module 1, a welding module 2 and a discharging module 3, wherein the feeding module 1 and the discharging module 3 are respectively used for feeding an unprocessed battery and discharging a processed battery, the welding module 2 is used for welding a screw and two end faces of the battery, and the modules are described in detail with reference to the figures.

Referring to fig. 2 and 3, a top view and a perspective view of one embodiment of the feeding module of the present invention are respectively shown. As shown in the figure, the feeding module 1 includes a frame 1100, and a first clamping jaw 1200 and a feeding device 1600 which are arranged on the frame 1100, and preferably, the material taking module further includes a material moving device 1700. The first clamping jaw 1200 is used for moving the material tray 1800 loaded with the batteries to the unloading position, the material moving device 1700 is used for transferring the batteries in the material tray 1800 at the unloading position to the material loading device 1600 in batches, then the material loading device 1600 obtains the batteries transferred by the material moving device 1700 and drives the batteries to move to the loading position and supply the batteries to subsequent processing stations, and meanwhile, the material loading device 1600 can drive the batteries to be mutually separated in the moving process and/or after moving so as to adjust the distance between the batteries.

Specifically, referring to fig. 4, fig. 4 shows a perspective view of one embodiment of the first jaw of the present invention. As shown, the first jaw 1200 includes a first base 1210 and at least two first cleats 1220. For the sake of understanding, only a partial structure of the first bases 1210 is shown in the drawings, and particularly, includes a portion to which the first clamping plate 1220 is directly fixed, and a connection portion between the first bases 1210 is hidden.

The first base 1210 includes two opposite fixing portions 1211, a rectangular groove 1212 is formed at a position of the fixing portion 1211 opposite to the other fixing portion 1211, and a horizontal bottom surface of the rectangular groove 1212 serves as a limiting plane.

The first clamping plate 1220 is rotatably connected to the first base 1210 through a rotating shaft seat 1230 and a rotating shaft, not shown, and the first clamping plates 1220 on both sides are located in the same plane and are oppositely arranged. In the initial state, the first clamping plates 1220 rest on the restraining planes of the respective fixing portions 1211, with the interval between the first clamping plates 1220 being minimized. When an external force acts on the first clamping plates 1220, the first clamping plates 1220 may be rotated upward with respect to the first base 1210, in which the expansion between the first clamping plates 1220 is gradually increased and reaches a maximum at the time of 90 ° rotation.

Preferably, a plurality of trays 1800 loaded with batteries are stacked in a vertical direction and positioned at a lower position between the first clamping plates 1220. Referring to fig. 5 and 5, which are perspective views of an embodiment of the tray of the present invention, as shown in the drawings, the tray 1800 should have holding parts 1810 which are matched with the first clamping plates 1220, and the maximum length between the holding parts should be larger than the minimum distance between the first clamping plates 1220 and smaller than the maximum distance between the first clamping plates 1220. During operation, first clamping jaw is from the directly over downstream of charging tray 1800, first splint 1220 is held the position 1810 by the card of charging tray 1800 and is supported and upwards rotate to make first splint 1220 cross the position 1810 is held to the card of charging tray 1800, after first splint 1220 crosses the position 1810 is held to the card of charging tray 1800 completely, first splint 1220 resets under the effect of gravity, because first splint 1220 is supported by spacing plane and is held and unable the downstream, so first splint 1220 can play the effect of bearing the weight of the charging tray, and then drive charging tray moving as a whole.

The invention also provides a material tray recovery device, referring to fig. 2, the material tray recovery device comprises a second clamping jaw 1300, a channel 1400 and a shifting lever 1500, wherein an inlet 1401 of the channel 1400 is the discharging position, the second clamping jaw 1300 is positioned at an outlet 1402 of the channel 1400, and the first clamping jaw 1200 moves the material tray 1800 to the inlet 1401 of the channel 1400; the shifter 1500 moves the tray 1800 from the inlet 1401 of the channel 1400 to the outlet 1402 of the channel 1400, in the process, the tray 1800 stays at the set position in the channel 1400 and the batteries in the tray are taken away by the moving device 1700; finally, the second clamping jaw 1300 moves relative to the frame 1100 to obtain the emptied tray 1800 and moves the tray 1800 to a set blanking position to realize the recovery of the tray.

Referring to fig. 6, fig. 6 shows a perspective view of one embodiment of the second jaw of the present invention. As shown, the second jaw 1300 includes a second base 1310, a power unit 1320, and at least two second clamp plates 1330. For the sake of understanding, only a partial structure of the second base 1310 is shown in the drawings, and specifically, a portion where the second plate 1330 is directly fixed is included, and a connection portion between the second bases 1310 is hidden.

The power unit 1320 preferably employs a cylinder, and the second clamp plate 1330 is disposed opposite to and fixedly coupled to a driving shaft of the corresponding cylinder. The second clamping plates 1330 at both sides may be moved in a horizontal direction with respect to the second base 1310 by the cylinder, thereby adjusting the interval between the second clamping plates 1330. Similarly, the maximum length of the holding portion 1810 of the tray 1800 should be greater than the minimum distance between the second clamping plates 1330 and less than the maximum distance between the second clamping plates 1330. During operation, the second clamping plates 1330 are first closed to make the distance between the second clamping plates 1330 smaller than the maximum length of the clamping position 1810, then the second clamping jaws 1300 are lifted to the set position, the shifting lever 1500 transfers the emptied tray onto the second clamping plates 1330, the second clamping plates 1330 support the clamping position 1810 of the tray 1800, then the second clamping jaws 1300 drive the tray 1800 to descend, the second clamping plates 1330 are far away from each other after the tray reaches the set position, so that the distance between the second clamping plates 1330 is larger than the maximum length of the clamping position 1810, and the tray 1800 is separated from the second clamping jaws 1300.

Referring to fig. 7, a perspective view of an embodiment of the channel and the deflector rod of the present invention is shown, wherein a portion of the connection structure between the deflector rod and the frame is hidden. As shown, the channel 1400 includes a first channel 1410 connected to the inlet 1401, a second channel 1420 connected to the outlet 1402, and a third channel 1430 connected to the first channel 1410 and the second channel 1420, and both sides of the channel are provided with side walls for guiding the tray 1800.

The stem 1500 includes a first stem (not shown) movable along a length of the first channel 1410, a second stem 1510 movable along a length of the second channel 1420, and a third stem 1520 movable along a length of the third channel 1430. The first, second and

third drivers

1510 and 1520 drive the tray 1800 to exit the first clamping jaw 1200 by relay, and then pass through the first channel 1410, the third channel 1430 and the second channel 1420 in sequence until entering the second clamping jaw 1300.

The power device for driving the first clamping jaw 1200 and the second clamping jaw 1300 to move relative to the frame 1100 in the present invention may adopt a known technology, such as a motor-synchronous belt transmission system, and the present invention is not limited in this respect.

In addition, the bottom of the rack 1100 is provided with a support frame 1110 for carrying the tray 1800. The supporting frame 1110 may be disposed under the first clamping jaw 1200, the second clamping jaw 1300, or both.

Referring to fig. 8, a schematic view of one embodiment of the loading device of the present invention is shown. As shown, the loading device includes a battery capture device 1610, a substrate 1620, a connecting plate 1630, a power device 1640, and a linear module 1650.

Base plate 1620 is connected with sharp module 1650, can move along vertical and horizontal direction under the drive of sharp module 1650. A power unit 1640 (preferably an air cylinder in this embodiment) is fixedly connected to the base 1620 and drives the connecting plate 1630 to move relative to the base 1620.

A slide rail is arranged on the connecting plate 1630, the plurality of battery acquirers 1610 are slidably connected with the slide rail through a slider, and a driving rod is fixedly connected to the battery acquirers 1610. The base board 1620 is provided with sliding grooves 1621 corresponding to the battery access device 1610, and in a direction moving along the connecting board 1630, a distance between adjacent sliding grooves 1621 is gradually reduced, and the driving rod extends into the corresponding sliding groove 1621 and can slide along the groove.

As shown in the figure, when the connecting plate 1630 is driven by the power device 1640 to move downward relative to the substrate 1620, the driving rod moves from the top end of the sliding slot with a small distance to the bottom of the sliding slot with a large distance, so as to drive the battery access device 1610 to be synchronously separated, thereby facilitating the processing of the subsequent stations.

Preferably, the battery capture device 1610 in this embodiment preferably includes an electromagnet, not shown, and further, the bottom of the battery capture device 1610 is provided with a curved surface conforming to the shape of the battery.

Referring to fig. 9 and 10, schematic perspective views in different directions of the material moving device of the present invention are respectively shown, in which the manipulator is hidden. As shown, the material moving device includes a battery compartment 1710, a turnover device 1720, and a chute 1730.

The battery compartment 1710 is disposed on the top of the rack 1100 and is rotatably connected to the rack 1100 through a shaft 1101, so that it can be switched between a horizontal state and a vertical state. The battery compartment 1710 has a cavity for receiving a battery, the top of the cavity is provided with an inlet for the battery to enter, and one side of the cavity (the right side as viewed in fig. 9) is provided with an outlet for the battery to exit. When the battery compartment 1710 is in the upright position, the entrance is directed vertically upward to receive batteries in the upright position; when the battery compartment 1710 is in the horizontal state as shown in fig. 9, the inlet is oriented in the horizontal direction, and the battery in the battery compartment 1710 is switched to the horizontal state and slides down the slide 1730 connected to the outlet.

Specifically, the turning device 1720 for driving the rotation of the battery compartment 1710 comprises a telescopic cylinder, wherein the telescopic cylinder is arranged obliquely relative to the battery compartment 1710, a cylinder body part of the telescopic cylinder is rotatably connected with the rack 1100, and a driving shaft is rotatably connected with the battery compartment 1710, so that the battery compartment 1710 can rotate relative to the rack 1100 along with the extension and retraction of the driving shaft. Of course, the turning device may also adopt other known structures, such as a rotary cylinder or a motor fixed to the shaft 1101, the shaft 1101 is fixed to the battery compartment 1710, and the battery compartment 1710 may also rotate relative to the frame 1100 along with the rotation of the rotary cylinder driving shaft or the motor driving shaft.

Preferably, in order to prevent the battery from sliding off the slide 1730 smoothly due to friction, the present embodiment is further provided with a battery pushing device. The battery pushing device preferably comprises a push plate 1740 and a power device 1750, the push plate 1740 is located at the other end (the left end according to fig. 9) of the battery compartment 1710 opposite to the outlet, and the push plate 1740 is driven by the power device 1750 (preferably a telescopic cylinder) to move in the cavity of the battery compartment 1710 along the rolling direction of the battery, so as to drive the battery to exit the cavity.

Preferably, the present invention also provides a battery carrier device, which is juxtaposed to the battery compartment 1710 and includes a horizontal plate 1760 and a vertical plate 1770 connected to the horizontal plate 1760. After the battery compartment 1710 rotates to the horizontal state, the inlet on the cavity faces the vertical plate 1770, the distance from the bottom wall of the cavity to the vertical plate 1770 is not less than the height of the battery, namely, the two ends of the battery are respectively and jointly borne by the battery compartment 1710 and the horizontal plate 1760, and meanwhile, the two ends of the battery are limited by the bottom wall of the cavity of the battery compartment 1710 and the vertical plate 1770, so that the deviation of the battery is avoided.

Referring to fig. 11, a schematic perspective view of the material moving device of the present invention is shown. As shown in the figure, the material moving device 1700 further includes a manipulator 1780, and the manipulator 1780 is configured to obtain the batteries in the vertical state from the material loading position, and move the batteries in the vertical state into the cavity of the battery compartment, preferably, the battery compartment in this embodiment may move in the horizontal direction and the vertical direction, and is specifically driven by the linear module.

The manipulator can adopt a sucker mechanism or a clamping jaw mechanism, the sucker mechanism is preferably adopted in the embodiment, specifically, the manipulator 1780 is a rectangular block, and a plurality of adsorption holes which are not shown are formed in the bottom of the rectangular block. During operation, the bottom of the rectangular block is attached to the top of the battery, and the battery is fixed through the adsorption holes.

The use process of the feeding module comprises the following steps: the first clamping jaw 1200 obtains the charging tray from the top of the charging tray stack, then moves upwards to the discharging position (namely the inlet 1401 of the channel 1400), then the first shifting lever shifts the charging tray into the first channel 1410, the manipulator 1780 moves the batteries vertically placed in the charging tray into the battery compartment 1710 in a row, the batteries are overturned by the battery compartment 1710 and then slide down to the charging device 1600 from the slideway 1730, the battery obtaining device 1610 obtains the batteries horizontally placed, the batteries move to the discharging position through the linear module, and meanwhile, the adjacent batteries are separated. On the other hand, when the tray in the first channel 1410 is empty, the second lever 1510 and the third lever 1520 shift the tray to the outlet 1402 of the channel 1400, and the second holding jaw 1300 takes the tray and moves downward to move the tray to the recovery position.

Referring to fig. 12 and 13, fig. 12 is a schematic perspective view illustrating an embodiment of a welding module according to the present invention, and fig. 13 is a schematic perspective view illustrating another angle after the welding device and other parts are hidden in fig. 12. The welding module comprises a frame 2100, a welding device 2200, a conveying device 2300, a battery fixing device 2400, a battery positioning device 2500, a weldment feeding device 2600, a weldment transferring device 2700 and a turning device 2800.

Wherein the frame 2100 provides a working platform in an automatic welding process, on which a first welding area and a second welding area are provided, both of which are provided with welding devices to respectively realize welding with both end surfaces of the battery. The conveying device 2300 drives the battery to move directionally, so that the battery sequentially passes through the first welding area, the steering device 2800 and the second welding area, and the steering device 2800 drives the battery to rotate, so that the front end and the back end of the battery are steered. The invention can realize the welding operation of two end surfaces of the battery on one device without manual reversing, saves the steps of reinstallation and positioning during reversing, and greatly improves the working efficiency of battery welding.

The welding device 2200 preferably employs a known laser welding head, which will not be described in detail herein. The laser welding head can be driven by a lifting mechanism to lift, and the laser welding head moves downwards to a welding position and moves upwards to a reset position. Preferably, the welding apparatus 2200 is provided with a plurality of laser welding heads (four in the present embodiment), and can weld a plurality of batteries at the same time, thereby further improving the welding efficiency.

Referring to fig. 14, a perspective view of one embodiment of the delivery device of the present invention is shown. As shown in the figure, the conveying device 2300 includes a carrying mechanism 2310, a lifting mechanism 2320 and a driving mechanism 2330, wherein the carrying mechanism 2310 is used for carrying the weldment, the lifting mechanism 2320 is fixedly connected with the carrying mechanism 2310 and is used for driving the carrying mechanism 2310 to move in the vertical direction, and the driving mechanism 2330 is fixedly connected with the lifting mechanism 2320 and is used for driving the lifting mechanism 2320 and the carrying mechanism 2310 to move in the horizontal direction.

The support means 2310 is preferably a long plate, on which a plurality of weldment grooves 2311 are uniformly formed along the length direction, and the weldment grooves 2311 are preferably semi-open circular arc curved surfaces for accommodating round batteries.

The jacking mechanism 2320 comprises a jacking cylinder 2321, a guide post 2322, a buffer 2323 and a base plate 2324, wherein one end of the jacking cylinder 2321 is fixedly connected with the base plate 2324, and the other end of the jacking cylinder 2321 is fixedly connected with the bearing mechanism 2310. The guiding post 2322 is also fixedly connected to the supporting mechanism 231, and the guiding post 2322 ensures that the supporting mechanism 2310 can stably and reliably move in a vertical plane under the action of the jacking cylinder 2321. The buffer 2323 is a hydraulic buffer, and can effectively buffer the impact force caused when the jacking cylinder 2321 drives the bearing component, so as to prevent the driving component from being damaged.

The driving mechanism 2330 preferably employs a motor-screw transmission system, and the base plate 2324 is fixedly connected to a screw seat of the motor-screw transmission system, so that the jacking mechanism 2320 can be translated by rotation of the motor.

The support device is further disposed on two sides of the support mechanism 2310, the support device includes a support plate 2110 and the above battery positioning device 2500, both the support plate 2110 and the battery positioning device 2500 are fixedly connected to the rack 2100, and a support groove 2111 is disposed on the support plate 2110 and corresponds to the welding piece groove 2311. For convenience of understanding, only the support plate 2110 and the battery positioning device 2500 at the front end of the supporting mechanism 2310 are shown in the drawing, and in fact, the support plate 2110 and the battery positioning device 2500 are distributed along the length direction of the supporting mechanism 2310 according to the following distribution rules: the battery positioning device 2500 is provided corresponding to the welding device 2200, and the support plate 2110 is provided at other positions.

The working principle of the conveying device is as follows: the feeding module transfers four batteries to four bearing grooves 2111 on the most front supporting plate 2110 of the bearing mechanism 2310, then the bearing mechanism 2310 rises to jack up the batteries to separate the batteries from the supporting plate 2110, then the batteries are driven to horizontally move to the position above the battery positioning device 2500 at one side of the supporting plate 2110, then the bearing mechanism 2310 descends to place the batteries on the battery positioning device 2500, and the four batteries can intermittently move in the direction of the feeding module 3 in groups in a reciprocating mode.

Referring to fig. 15, a perspective view of one embodiment of the battery positioning device of the present invention is shown. As shown, the battery positioning device includes a base 2520 and a roller set 2510, and the roller set 2510 includes two rollers fixedly connected to the frame 2100 through the base 2520. The axes of the rollers in the same group are parallel to each other and are positioned in the same horizontal plane, and the minimum distance between the surfaces of the rollers in the same group is larger than the diameter of the battery.

The roller set 2510 corresponds the welding piece groove 2311 on the bearing mechanism 2310 and is arranged on two sides of the bearing mechanism 2310, and the minimum distance between the roller sets 2510 on the two sides is larger than the length of the battery, so that the roller set 2510 can realize automatic centering of the battery when bearing the cylindrical battery, and the welding precision is convenient to guarantee.

Referring to fig. 16, a perspective view of one embodiment of the battery holding apparatus of the present invention is shown. As shown, the battery fixing device 2400 includes a suction cup 2410, a suction cup spindle 2420 and a spindle driving device 2430.

The end face of the suction cup 2410 is provided with a plurality of suction holes, and the battery can be sucked and fixed by being connected with a vacuum extractor. The sucking disc 2410 is fixedly connected with a sucking disc rotating shaft 2420, and the sucking disc rotating shaft 2420 is rotatably connected with the battery fixing rack. With the driving of the rotating shaft driving device 2430 (preferably a motor), the suction cup 2410 can drive the battery to rotate around the axis of the suction cup rotating shaft 2420 synchronously, so that the whole circumference of the connection part of the battery and the weldment can be welded under the condition that the welding device 2200 is kept static.

Preferably, the present embodiment is provided with a plurality of suction cups 2410, and the suction cups 2410 are rotated in synchronization with each other. Specifically, a synchronous belt wheel is arranged on the rotating shaft 2410, and a synchronous belt is wound on the synchronous belt wheel, so that the rotating shaft driving device 2430 only needs to be arranged on the sucking disc rotating shaft 2420 of any one group of sucking disc assemblies.

In addition, the battery fixing device 2400 is provided with a displacement mechanism 2440 for driving the suction cup 2410 to move toward/away from the battery in the horizontal direction.

The welding part feeding device and the welding part transferring device are preferably further arranged, and the welding parts in the embodiment are preferably screws. Referring to fig. 17, a perspective view of an embodiment of the weldment feeding apparatus of the present invention is shown. As shown, the weldment feeding device includes a weldment feeding base plate 2610, an ejection block 2620, a guide tube 2630, and an ejection mechanism.

The ejection block 2620 is fixedly arranged on the weldment feeding substrate 2610, a first via hole 2621 and a second via hole 2622 are formed in the ejection block 2620, the first via hole 2621 penetrates the ejection block 2620 in a front-back direction, one end of the second via hole 2622 is communicated with the first via hole 2621, and the other end of the second via hole 2622 is communicated with the guide tube 2630.

The ejection mechanism includes an expansion link 2640 and a driving cylinder (not shown), the driving cylinder is fixed to the bottom surface of the weldment feeding substrate 2610, and is fixedly connected to one end of the expansion link 2640 through a connecting seat 2650, and the other end of the expansion link 2640 extends into the first via hole 2621.

The ejection block in this embodiment is preferably formed by splicing two connecting blocks, and referring to fig. 18, a perspective view of one side connecting block of the present invention is shown. As shown in the figure, the first through hole 2621 is horizontally disposed, and passes through the connection block in a front-rear direction, and has an opening at a rear end thereof into which the expansion rod 2640 extends, and an opening at a front end thereof for feeding out a screw. The second via hole 2622 is obliquely disposed with one end thereof being opened on the connection block to be connected to the guide tube 2630 and the other end being communicated with the first via hole 2621.

Referring to fig. 17 and 18, in the vibration plate feeding mechanism not shown of the guide tube 2630, the screw enters the second through hole 2622 through the guide tube 2630, and then enters the first through hole 2621 through the second through hole 2622, and the telescopic rod 2640 pushes out the screw by moving along the first through hole 2621.

Referring to fig. 19, a perspective view of one embodiment of the weldment transfer apparatus of the present invention is shown. As shown in the figure, the welding member transferring device includes a material receiving rod 2710, a connecting seat 2720, a moving mechanism 2730 and a welding member transferring base plate 2740.

The connecting seat 2720 is fixedly connected with a weldment transfer base plate 2740, and the material receiving rod 2710 is rotatably connected with the connecting seat 2720 through a bearing. The weldment transfer substrate 2740 is fixedly connected to the moving mechanism 2730, the moving mechanism 2730 in this embodiment includes a first linear module 2731 and a second linear module 2732, the first linear module 2731 is used for driving the weldment transfer substrate 2740 to move along a direction perpendicular to the battery translation, and the second linear module 2732 is used for driving the first linear module 2731 to move along a direction parallel to the battery translation.

Referring to fig. 20, there is shown a schematic cross-sectional view of the end of a collector bar according to the invention. As shown in the figure, the end of the material receiving rod 2710 is provided with a hole, the hole wall is provided with a plurality of grooves 2711 along the circumferential direction, the grooves 2711 axially extend along the material receiving rod 2710 and radially pass through the hole wall, the diameter of the hole is slightly smaller than that of the screw rod part in an initial state, and when the screw is inserted into the hole, the hole wall can be squeezed to expand outwards, and the screw is fixed through the elasticity of the hole wall.

With reference to fig. 19 and 20, after the material receiving rod 2710 obtains a screw from the weldment feeding device, the screw moves to the battery under the driving of the second linear module 2732, then the head of the screw contacts with the end face of the battery under the driving of the first linear module 2731, the screw is driven by the battery to synchronously rotate in the whole welding process, the material receiving rod 2710 reversely resets under the driving of the first linear module 2731 after the welding is completed, and the screw is separated from the material receiving rod 2710 because the welding strength is far greater than the clamping force of the hole wall to the screw.

Referring to fig. 21, there is shown a perspective view of one embodiment of the steering apparatus of the present invention. As shown in the figure, the steering apparatus 2800 includes a steering base 2810, two sets of symmetrically arranged and independent grippers 2820 are fixedly connected to a lower portion of the steering base 2810, the grippers 2820 can rotate relative to the steering base 2810 through a connecting shaft 2830, a steering power unit 2840 is fixedly connected to an upper portion of the steering base 2810, and the steering power unit 2840 is used for driving the grippers 2820 to rotate.

The gripper 2820 in this embodiment is an electromagnet, and the bottom end surface of the gripper is preferably provided with a circular arc-shaped curved surface adapted to the surface of the battery, and the steering power device 2840 in this embodiment is preferably a motor-synchronous belt drive system. In addition, the steering device 2800 further includes a not-shown lifting device for driving the steering base 2810 to move in the vertical direction.

After welding of one end face of each battery is completed, the conveying device moves the battery to the position below the steering device, the hand grips 2820 descend under the driving of the lifting device and adsorb the corresponding battery, the hand grips ascend for a certain distance after adsorption, and the hand grips rotate around the axis of the connecting shaft 2830 under the driving of the steering power device 2840 to achieve reversing of the end face of the battery.

Referring to fig. 22, a schematic perspective view of an embodiment of the blanking module of the present invention is shown. As shown in the figure, the blanking module includes a base 3100, a chute 3200, a receiving plate 3300, a conveyor 3400, and a power device 3500.

The slideway 3200 is fixedly connected on the base 3100, the top surface of the slideway is provided with an inclined surface, the highest end of the inclined surface is connected with the welding module, and the lowest end is connected with the conveying belt 3400. The slideway 3200 preferably comprises two side-by-side sliding plates, the spacing between which is less than the length of the battery.

The slide 3200 is provided with a receiving plate 3300 at each side, and a groove 3301 is provided on the receiving plate 3300 corresponding to the battery. The receiving plates 3300 are slidably connected to the base 3100, and can be moved toward and away from each other by a power device 3500 (preferably, a cylinder), and when the receiving plates 3300 are moved toward each other, the distance between the receiving plates 3300 is smaller than the length of the battery, and when the receiving plates 3300 are moved away from each other, the distance between the receiving plates is larger than the length of the battery. When the battery receiving device is used, the receiving plate 3300 is initially in a relatively close state, the conveying device firstly places the welded batteries on the receiving plate 3300, then the receiving plate 3300 is relatively separated, the batteries fall onto the slide way 3200, slide down to the conveying belt 3400 through the inclined surface of the slide way 3200, and finally are conveyed to a discharging position through the conveying belt 3400.

While the preferred embodiments of the present invention have been illustrated and described, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A welding device for realizing battery reversing welding is characterized by comprising a rack, a feeding module, a discharging module and a welding module connected with the feeding module and the discharging module, wherein the welding module comprises a conveying device, at least two welding devices arranged along the conveying direction of the conveying device and a steering device arranged between the welding devices, the conveying device receives a battery from the feeding module and drives the battery to sequentially pass through the welding devices and the steering device, the battery performs welding on a first end face at the first welding device, steering is performed at the steering device so that a second end face is positioned at a welding position, and the welding of the second end face is performed at the second welding device;

the steering device comprises a steering base, a rotating shaft, a gripper and a steering power device, the steering power device is fixedly connected with the steering base, the gripper is used for acquiring the battery, is connected with the steering base through the rotating shaft and can rotate around the axis of the rotating shaft under the driving of the power device;

the welding module still includes battery fixing device, battery fixing device includes fixed frame of battery, sucking disc pivot and pivot drive arrangement, be equipped with the absorption hole on the sucking disc, the sucking disc with sucking disc pivot fixed connection, and can it is relative under pivot drive arrangement's the fixed frame of battery rotates.

2. The welding device for realizing the battery reversing welding according to claim 1, wherein the feeding module comprises a feeding device, the feeding device comprises a base plate, a connecting plate, a power device and more than two battery acquisition devices, the power device is fixedly connected with the base plate, and the battery acquisition devices are connected with the connecting plate in a sliding manner;

the base plate is provided with sliding grooves corresponding to the battery acquisition devices, the distance between adjacent sliding grooves is gradually reduced along the moving direction of the connecting plate, and a driving rod fixedly connected to the battery acquisition devices extends into the corresponding sliding grooves and can slide along the grooves;

the feeding device moves to a feeding position after acquiring the battery through the battery acquisition device, and the power device drives the connecting plate to move relative to the base plate in the moving process and/or after moving, so as to drive the battery acquisition device to synchronously separate/approach.

3. The welding device for realizing the reversing welding of the batteries according to claim 2, wherein the feeding module further comprises a first clamping jaw, a second clamping jaw, a channel and a deflector rod, the first clamping jaw is positioned at an inlet of the channel, the second clamping jaw is positioned at an outlet of the channel, the batteries are contained in a material tray, the material tray is conveyed to the inlet of the channel by the first clamping jaw and then driven by the deflector rod to move to a discharging position in the channel, the feeding device obtains the batteries in the material tray at the discharging position, and the emptied material tray is conveyed to the outlet of the channel by the deflector rod and then is recovered by the second clamping jaw.

4. The welding device for realizing the reversing welding of the batteries according to claim 3, further comprising a manipulator, a battery compartment, a turnover device and a slide way, wherein the manipulator, the battery compartment, the turnover device and the slide way are arranged between the channel and the feeding device, the manipulator moves the batteries in the material tray at the discharging position to the battery compartment, the battery compartment is provided with a cavity for accommodating the batteries, the top of the slide way is connected with the cavity, the bottom of the slide way leads to the feeding device, the battery compartment is rotationally connected with the rack and can be rotated under the driving of the turnover device so as to drive the batteries placed in the cavity to be switched from a vertical state to a horizontal state, and the batteries in the horizontal state can roll down along the slide way.

5. The welding device for realizing the reversing welding of the batteries according to claim 1, wherein the blanking module comprises a base, a slide way, a bearing plate, a conveyor belt and a power device, the slide way is fixedly connected to the base, the top surface of the slide way is provided with an inclined surface, the highest end of the inclined surface is connected with the welding module, and the lowest end of the inclined surface is connected with the conveyor belt;

the bearing plates are arranged on two sides of the slide way respectively, are connected with the base in a sliding manner and can be relatively close to or far away from the base under the driving of the power device;

when the bearing plates are closed, the distance between the bearing plates is smaller than the length of the battery so as to bear the battery; when the bearing plates are far away, the distance between the bearing plates is larger than the length of the battery, the battery falls onto the inclined surface of the slide way, and then slides onto the conveyor belt through the inclined surface.

6. The welding device for realizing the reversing welding of the batteries according to any one of claims 1 to 5, wherein the conveying device comprises a bearing mechanism, a jacking mechanism and a driving mechanism, supporting devices fixedly connected with the rack are further arranged on two sides of the bearing mechanism, the distance between the supporting devices on the two sides is smaller than the length of the batteries, and the conveying device is characterized in that the conveying device comprises a supporting mechanism, a jacking mechanism and a driving mechanism, wherein the supporting devices on the two sides are fixedly connected with the rack, and the distance between the supporting devices on the two sides is smaller than the length of the batteries, and the conveying device is used for conveying the batteries in a reversing mode

the bearing mechanism moves upwards relative to the supporting device, after the battery is jacked up to be separated from the supporting device, the bearing mechanism drives the battery to horizontally move to the next station, then the bearing mechanism descends, and the battery is placed on the supporting device and then resets, so that the process is repeated.

7. The welding device for realizing the battery reversing welding according to claim 1, wherein the welding module further comprises a weldment transferring device, and the weldment transferring device comprises a material receiving rod, a connecting seat, a moving mechanism and a weldment transferring base plate;

the connecting seat is fixedly connected with a weldment transfer base plate, the material receiving rod is rotatably connected with the connecting seat, and the weldment transfer base plate is driven by the moving mechanism to move relative to the rack;

the material receiving rod is driven by the moving mechanism after acquiring a weldment to enable the weldment to be in contact with the end face of the battery, and in the welding process, the material receiving rod drives the weldment to synchronously rotate with the battery.

8. The welding device for realizing the reversing welding of the batteries according to claim 7, wherein the welding module further comprises a weldment feeding device, and the weldment feeding device comprises a weldment feeding base plate, an ejection block, a guide tube and an expansion link;

the ejection block is fixedly connected to the weldment feeding substrate, a first via hole and a second via hole are formed in the ejection block, the first via hole penetrates through the ejection block from front to back, one end of the second via hole is communicated with the first via hole, and the other end of the second via hole is communicated with the guide pipe;

the telescopic rod can move in the first through hole;

the weldment enters the first via hole through the guide pipe and the second via hole, and the telescopic rod pushes out the screw through the movement along the first via hole.