CN218362670U

CN218362670U - New energy automobile battery box system of processing

Info

Publication number: CN218362670U
Application number: CN202222401334.2U
Authority: CN
Inventors: 何峰; 陈世远
Original assignee: Chongqing Aluminum Age Technology Co ltd
Current assignee: Chongqing Aluminum Age Technology Co ltd
Priority date: 2022-09-09
Filing date: 2022-09-09
Publication date: 2023-01-24
Anticipated expiration: 2032-09-09

Abstract

The utility model relates to the technical field of battery processing, and discloses a new energy automobile battery box processing system, which comprises an automatic handling unit, a frame automatic welding unit for welding a frame to form a combined frame, and a bottom plate automatic welding unit for welding a bottom plate on the combined frame to form a battery box; the automatic bottom plate welding unit comprises a mounting seat, a bottom plate welding mechanism and a plurality of fixing mechanisms arranged on the mounting seat, all the fixing mechanisms are arranged along a welding track preset by the bottom plate and the combined frame, and a control unit used for controlling the fixing mechanisms to press the fixed bottom plate or move the fixed bottom plate out of the bottom plate is arranged on the mounting seat. The patent of the utility model provides an among the prior art when new energy automobile battery box welds problem with high costs and inefficiency.

Description

New energy automobile battery box system of processing

Technical Field

The utility model relates to a battery box processing technology field, concretely relates to new energy automobile battery box system of processing.

Background

In the new energy automobile, the battery box body is used as a key part for bearing the basic unit battery core of the battery pack, and provides a safe insulating environment for the battery core. At present, the battery box generally comprises a frame structure consisting of a combined frame and a bottom plate, wherein the combined frame is of a square structure formed by sequentially welding four frames from head to tail, and the bottom plate is welded at the bottom of the combined frame to form the battery box.

The existing welding mode is characterized in that the welding track preset by the base plate and the combined frame is in a closed ring shape in an end-to-end mode during welding, so that the welding part of the friction stir welding is prevented from being blocked and interfered by a welding fixing tool, meanwhile, the base plate and the combined frame are prevented from being staggered and the position of the base plate and the position of the combined frame are relatively stable in the welding process, the base plate and the combined frame are usually pre-fixed in an argon arc welding machine spot welding mode before the base plate and the combined frame are subjected to friction stir welding, and the base plate and the frame assembly are connected into a whole and then subjected to friction stir welding.

Although the welding of the bottom plate and the combined frame can be completed by adopting the welding mode, the following problems still exist in the actual welding process:

1. the existing welding mode needs to be firstly spot-welded in advance and then friction stir welding, the welding of the bottom plate and the combined frame is divided into two procedures, and multiple positioning and transferring are needed, so that the welding efficiency is low, and the equipment cost of a welding tool is high; in addition, the existing welding mode needs manual transfer of the combined frame, so that the manual labor intensity is high, and the problem of deformation of the combined frame is easy to occur in the transfer process.

2. Because the new energy automobile battery box body has higher precision requirement, especially the requirement on the welding flatness of the bottom plate is 5mm, and the thickness of the bottom plate is smaller, when the existing welding mode is adopted for carrying out spot welding in advance, the bottom plate is easy to deform due to thermal stress, the flatness of the bottom plate is at least 7-8mm, and the welding yield cannot be guaranteed.

SUMMERY OF THE UTILITY MODEL

The utility model provides a new energy automobile battery box system of processing to solve among the prior art problem with high costs and inefficiency when the welding of new energy automobile battery box.

In order to solve the above problem, the utility model adopts the following technical scheme: a new energy automobile battery box body processing system comprises an automatic carrying unit, a frame automatic welding unit and a bottom plate automatic welding unit, wherein the frame automatic welding unit is used for welding frames to form a combined frame; the automatic bottom plate welding unit comprises a mounting seat, a bottom plate welding mechanism and a plurality of fixing mechanisms arranged on the mounting seat, all the fixing mechanisms are arranged along a welding track preset by the bottom plate and the combined frame, and a control unit used for controlling the fixing mechanisms to press the fixed bottom plate or move the fixed bottom plate out of the bottom plate is arranged on the mounting seat.

The principle of the scheme is as follows: in this application, can automatic handling frame through the automatic handling unit, combination frame and bottom plate, no longer need artifical transport, frame automatic weld unit is used for four frames automatic weld to end's combination frame, the combination frame is shifted to on the mount pad automatically, then the automatic handling unit carries the bottom plate to mount pad department and places at the top of combination frame, then all fixed establishment of control unit control move to the state of pressing down the fixed bottom plate, make the position of bottom plate and combination frame relatively fixed, then bottom plate welding mechanism welds the bottom plate on the combination frame along the welding track that bottom plate and combination frame predetermine, when bottom plate welding mechanism moves along the welding track of bottom plate and combination frame, bottom plate welding mechanism can pass through fixed establishment in proper order, when bottom plate welding mechanism is close to one of them fixed establishment, control unit control this fixed establishment of control moves outside the bottom plate and no longer plays the fixed effect of pressing down to the bottom plate, this fixed establishment of control also can not cause to block the interference to the progress of bottom plate welding mechanism yet, thereby make bottom plate welding mechanism can accomplish the welding operation to the bottom plate in succession and steadily, and after this fixed establishment of control unit, thereby the fixed establishment of control has the fixed bottom plate to be carried out the fixed mechanism in the fixed state of pressing down to the fixed mechanism, thereby it can guarantee to there is the stability of pressing down the fixed mechanism.

The beneficial effect of this scheme lies in:

1. can effectively promote welding efficiency: compared with the mode of performing friction stir welding after spot welding is performed in advance in the prior art, the process is more complicated, and the welding efficiency is lower. In this application, no longer need carry out spot welding and fixed operation to the bottom plate, when welded bottom plate and combination frame, only need to install the bottom plate in the top of combination frame, then recycle on a plurality of fixed establishment presses the bottom plate to be fixed in combination frame and mount pad, can weld the bottom plate, effectively reduce welding process step to promote welding efficiency.

2. The labor intensity of workers is reduced: in this application, owing to set up the automatic handling unit, after the frame welds into the combination frame, can utilize the automatic handling unit with combination frame automatic handling to the mount pad on, utilize the automatic handling unit to carry the bottom plate to the combination frame simultaneously on, realize the automatic installation location, and after the bottom plate welding is accomplished, transport away the battery box from the mount pad voluntarily, whole handling is automatic to be accomplished, effectively reduces artifical intensity of labour.

3. Effectively promote the welded precision: compared with the situation that the deformation is easy to occur when the base plate is subjected to spot welding and pre-fixing in the prior art, the base plate is not subjected to spot welding and pre-fixing any more in the application, so that the problem is completely avoided; simultaneously, in this application at the bottom plate welding process, the fixed establishment that the control unit can control bottom plate welding mechanism department rotates outside the bottom plate, but all the other fixed establishment still are in and press the fixed state with the bottom plate, thereby the stability among the bottom plate welding process has been guaranteed, and after bottom plate welding mechanism accomplished the welding of a certain fixed establishment position, the control unit can control fixed establishment and reset to the state of pressing fixed bottom plate, thereby make can also receive fixed establishment's the stationary force of pressing after the bottom plate welding, reduce the risk that the bottom plate takes place to warp after friction stir welding, further promote welded precision.

4. The welding cost is obviously reduced: compared with the prior art that spot welding and pre-fixing operations are needed before the bottom plate is welded, two sets of welding systems need to be arranged, and the equipment cost is high. In this application, through the pressing of a plurality of fixed establishment to the bottom plate fixed, needn't set up spot welding system again to simplify welding system and reduce welded equipment cost.

Preferably, as an improvement, a frame welding line processing unit is arranged between the frame automatic welding unit and the bottom plate automatic welding unit.

In this scheme, utilize frame welding seam processing unit to process the produced protruding welding seam of the combination frame that the frame welded to make the terminal surface of combination frame level and smooth, form good cooperation between convenient follow-up bottom plate and the combination frame.

Preferably, as an improvement, a water nozzle welding unit, an integral machining unit, a tooth socket assembling unit, an automatic gluing and bushing automatic welding unit and a cleaning and stacking unit are sequentially arranged behind the bottom plate automatic welding unit.

In this scheme, water injection well choke welding unit is used for the automatic weld water injection well choke on battery box, whole machine tooling unit is used for processing pilot hole and accessory mounting hole etc. on battery box, facing assembly unit is used for assembling the steel wire facing to battery box, automatic beat glue and bush automatic weld unit is used for beating gluey position to battery box requirement and beat glue and welding the bush, clean and pile up neatly unit is used for cleaning and the pile up neatly the battery box that accomplishes processing, make battery box's processing can go on high-efficiently in succession.

Preferably, as an improvement, the frame weld processing unit comprises a CNC milling machine and a first roll-over stand which are arranged on one side of the automatic handling unit; the integral processing unit comprises a front processing center, a second turnover frame and a back processing center.

In this scheme, utilize first roll-over stand to overturn the combination frame to mill the processing of leveling to the both sides terminal surface of combination frame, utilize the second roll-over stand to overturn the battery box, and utilize the automatic handling unit to carry the battery box to positive machining center and reverse side machining center and carry out two-sided processing.

Preferably, as an improvement, an air tightness detection unit is arranged between the water nozzle welding unit and the integral machining unit and between the integral machining unit and the tooth socket assembling unit.

In this scheme, utilize airtight seal detecting element to detect the airtight of product to guarantee the processingquality of battery box.

Preferably, as an improvement, all be equipped with artifical repair welding unit behind frame automatic weld unit and the bottom plate automatic weld unit, be equipped with the positioning mechanism who is used for automatic positioning bottom plate and combination frame on the mount pad.

In this scheme, through setting up artifical repair welding unit, make things convenient for artifical to repair welding the not good position of frame automatic weld unit and bottom plate automatic weld unit welding, promote battery box welded quality, guarantee the welding yield.

Preferably, as an improvement, the positioning mechanism includes at least two positioning units and at least two pushing units, all the positioning units are located on two adjacent sides of the frame, and all the pushing units are located on two other adjacent sides of the frame.

In this scheme, utilize the positioning element can play the positioning action to combination frame and bottom plate, and utilize the pushing action that promotes the unit, can make combination frame and bottom plate support tightly with the positioning element laminating to fix a position the bottom plate with combination frame fast, can also play supplementary fixed effect to bottom plate and combination frame in bottom plate and combination frame welding process moreover, further promote bottom plate welded stability.

Preferably, as an improvement, the automatic handling unit includes ground rail and a plurality of transfer robot of sliding connection on the ground rail, frame automatic weld unit, frame welding seam processing unit, bottom plate automatic weld unit, water injection well choke welding unit, whole machining unit, facing assembly unit, automatic beat glue and bush automatic weld unit, clean and pile up neatly unit arrange in the both sides of ground rail in proper order.

In this scheme, combine ground rail and transfer robot, can accomplish the transport to the work piece accurately and fast, and frame automatic weld unit, frame welding seam processing unit, bottom plate automatic weld unit, water injection well choke welding unit, whole machining unit, facing assembly unit, automatic beat glue and bush automatic weld unit, clean and pile up neatly unit arranges in the both sides of ground rail in proper order, make each processing station of battery box be located ground rail both sides and form U type overall arrangement, thereby make feed inlet and product outlet be located the same end of system of processing, reduce the transport distance, effectively promote machining efficiency and reduce the processing cost.

Preferably, as an improvement, the fixing mechanism comprises a pressing cylinder, a pressing rod and a connecting rod, the processing table is connected with a fixed seat in a sliding manner, the pressing cylinder is fixedly connected to the fixed seat, one end of the pressing rod is rotatably connected to the pressing cylinder, one end of the connecting rod is rotatably connected to the fixed seat, and the other end of the connecting rod is rotatably connected to the side wall of the pressing rod; the control unit comprises a controller fixedly connected to the fixed seat, and the pressing air cylinder is electrically connected with the controller.

In this scheme, when pressing down the cylinder and promoting the depression bar, under the pulling force effect of connecting rod for the depression bar takes place to rotate, and the depression bar is kept away from the one end of pressing down the cylinder and is rotated to the state that can press the PMKD or keep away from the bottom plate, thereby realizes the purpose fixed or release of pressing down to the bottom plate, and simple structure and control are convenient.

Preferably, as a refinement, the distance between adjacent fixing means is 150-300mm.

In the scheme, the distance between the adjacent fixing mechanisms is set to be 150-300mm, so that the fixing mechanisms can be utilized to achieve a good pressing and fixing effect on the bottom plate, and meanwhile, the cost waste caused by overlarge arrangement density of the fixing mechanisms can be avoided.

Drawings

Fig. 1 is the utility model discloses in the embodiment one, a new energy automobile battery box system of processing's schematic diagram.

Fig. 2 is a schematic structural view of an automatic middle bottom plate welding unit according to an embodiment of the present invention.

Fig. 3 is a schematic view illustrating a connection between a fixing mechanism and a fixing base according to a first embodiment of the present invention.

Fig. 4 is a partially enlarged view of the fixing mechanism of fig. 3.

Fig. 5 is a schematic view illustrating a connection between a fixing mechanism and a fixing base according to a second embodiment of the present invention.

Fig. 6 is a partially enlarged view of the fixing mechanism of fig. 5.

Fig. 7 the utility model provides a third in the embodiment of the utility model provides a new energy automobile battery box system of processing's schematic diagram.

Detailed Description

The following is further detailed by way of specific embodiments:

reference numerals in the drawings of the specification include: the automatic welding device comprises a frame automatic welding unit 1, a frame mounting station 101, a frame welding machine 102, a frame welding seam processing unit 2, a CNC milling machine 201, a first turnover frame 202, a bottom plate automatic welding unit 3, a processing table 301, a fixing mechanism 302, a pressing cylinder 3021, a pressing rod 3022, a connecting rod 3023, a mounting seat 3024, a pressing head 3025, a friction welding machine 303, a welding head 3031, a fixing seat 304, an electromagnetic valve 305, a water nozzle welding unit 4, a whole machining unit 5, a front face processing center 501, a second turnover frame 502, a back face processing center 503, a tooth socket assembling unit 6, a thread socket mounting device 601, a third turnover frame 602, an automatic gluing and lining automatic welding unit 7, an automatic gluing machine 701, a lining automatic welding robot 702, a cleaning and stacking unit 8, a ground rail 9, a carrying robot 10, a positioning unit 11, a 1101, a pushing unit 12, a pushing cylinder, a pushing block 1202, a manual repair welding station 13, a semi-finished product air tightness detection station 14 and a finished product air tightness detection station 15.

Example one

This embodiment is substantially as shown in fig. 1: the utility model provides a new energy automobile battery box system of processing, includes the automatic handling unit and along frame automatic weld unit 1, frame welding seam processing unit 2, bottom plate automatic weld unit 3, water injection well choke welding unit 4, whole machining unit 5, facing assembly unit 6, automatic gluing and bush automatic weld unit 7, clean and pile up neatly unit 8 that the automatic handling unit set up according to the preface. Wherein the automatic handling unit is including being the ground rail 9 of sharp setting and setting up a plurality of transfer robot 10 on ground rail 9, and transfer robot 10 can snatch the product of fixed processing and can walk along ground rail 9 to the realization shifts the transport of product. In this embodiment, five-axis automatic robots are used as the transfer robots 10, the number of the transfer robots 10 is three, and servo motors and rack-and-pinion drives are used between the transfer robots 10 and the ground rails 9. Frame automatic weld unit 1, frame welding seam processing unit 2, bottom plate automatic weld unit 3, water injection well choke welding unit 4 and whole machining unit 5 are located one side of ground rail 9, facing assembly unit 6, automatic beat glue and bush automatic weld unit 7 and clean and pile up neatly unit 8 is located the opposite side of ground rail 9, make all processing units be located the both sides of ground rail 9 and make the processing route of battery box be U type overall arrangement (as arrow point in fig. 1 shows), in new energy automobile battery box body course of working, the feed end exit end of product is located the same one end of ground rail 9, can effectively reduce the distance of material transport, thereby practice thrift the processing cost.

In this embodiment, the frame automatic welding unit 1 is configured to automatically weld four frames into a combined frame having a square structure. The frame automatic welding unit 1 comprises a frame installation station 101 and a frame welding machine 102, the frame welding machine 102 adopts a CMT automatic welding machine, during welding, four frames are sequentially installed and fixed on the frame installation station 101, then the installed frames are moved into the frame welding machine 102, the frames are automatically welded by the frame welding machine 102 to form a combined frame, and after welding is completed, the carrying robot 10 carries the combined frame to the frame welding line processing unit 2 along the ground rail 9 after clamping and fixing the combined frame.

The frame weld processing unit 2 comprises a CNC milling machine 201 and a first turning frame 202 which are arranged on one side of the ground rail 9, the carrying robot 10 grabs the welded combined frame to the CNC milling machine 201, the CNC milling machine 201 is used for milling a weld protruding on the front surface of the combined frame (the weld is generated when the frame is welded by the frame welding machine 102), then the carrying robot 10 grabs the combined frame with the milled front surface to the first turning frame 202, the first turning frame 202 is used for carrying out the reverse surface (the structure for carrying out the reverse surface on a product by using the turning frame belongs to a conventional technical means in the prior art, the description is omitted here, the structure of the first turning frame 202 can refer to fig. 2), then the carrying robot 10 is used for grabbing the combined frame on the reverse surface to the CNC milling machine 201, and the CNC milling processing is carried out on the combined frame by using the CNC milling machine 201, and the weld protruding on the front surface and the reverse surface of the combined frame is milled flatly.

And the bottom plate automatic welding mechanism is used for welding the bottom plate to the combined frame to form the battery box body. Referring to fig. 2 and 3, the automatic base plate welding unit 3 includes a processing table 301, a base plate welding mechanism, and a plurality of fixing mechanisms 302 disposed on the processing table 301. In fig. 2, the floor welding mechanism employs a prior art friction welding machine 303, the friction welding machine 303 is located above the processing table 301 and is vertically slidably attached to the processing table 301, and a welding head 3031 of the friction welding machine 303 is slidably attached to the friction welding machine 303 in the front-rear direction in fig. 2, so that the welding head 3031 can slide vertically and front-rear relative to the processing table 301. Processing platform 301 is last to control horizontal sliding connection and to have fixing base 304, and all fixed establishment 302 all connect on fixing base 304, still are used for the aforementioned limit support block who makes up frame and bottom plate of erection bracing through screw fixed connection on fixing base 304 simultaneously, utilize current supporting shoe to play limit support to making up frame and bottom plate. Referring to fig. 3 and 4, after the bottom plate and the combined frame are placed on the fixing base 304, the bottom plate is located at the top of the combined frame, the combined frame is located at four sides of the bottom plate, a welding seam track of the bottom plate and the combined frame is located at an edge position along the four sides of the bottom plate, and a welding head 3031 in fig. 3 moves along a preset welding track during welding, so that friction stir welding of the bottom plate and the combined frame can be completed.

As shown in fig. 3, the plurality of fixing mechanisms 302 are arranged equidistantly along the predetermined welding track of the bottom plate and the combined frame, in order to ensure the pressing fixing effect on the bottom plate and reasonably control the equipment cost, the distance between adjacent fixing mechanisms 302 is 150-300mm, and in this embodiment, the distance between adjacent fixing mechanisms 302 is preferably 240mm.

As shown in fig. 4, the fixing mechanism 302 includes a pressing cylinder 3021, a pressing rod 3022 and a connecting rod 3023, the pressing cylinder 3021 is fixedly connected to the fixing base 304 by screws, the top of the pressing cylinder 3021 is fixedly connected to the mounting base 3024 by screws, the bottom end of the pressing rod 3022 is rotatably connected to the output shaft of the pressing cylinder 3021 by a pin, one end of the connecting rod 3023 is rotatably connected to the mounting base 3024 by a pin, the other end of the connecting rod 3023 is rotatably connected to the side wall of the pressing rod 3022 by a pin, and the top end of the pressing rod 3022 is fixedly connected to a pressing head 3025 by screws. When the output shaft of the pressing cylinder 3021 extends out of the cylinder body, the pressing rod 3022 can be pushed to rotate to the horizontal state, so that the pressing head 3025 applies downward force to the top surface of the bottom plate in fig. 4 to press and fix the bottom plate on the top of the combined frame. With reference to fig. 3, a control unit for controlling the pressing head 3025 pressed by the pressing cylinder 3021 to fix the bottom plate or to enable the pressing head 3025 to rotate to the outside of the bottom plate is disposed on the fixing base 304, the control unit includes a controller and an electromagnetic valve 305, the controller uses a single chip microcomputer in the prior art, the electromagnetic valves 305 are mounted on the fixing base 304 in groups, the electromagnetic valve 305 and the pressing cylinder 3021 are both electrically connected to the controller, and since the operation of controlling the electromagnetic valve 305 and the cylinder by using the single chip microcomputer belongs to a conventional technical means, detailed descriptions of electrical connection structures thereof are omitted here.

Therefore, in this embodiment, when the bottom plate is welded to the combined frame, the transfer robot 10 is first used to grab the combined frame onto the fixing seat 304, and then the bottom plate is placed on top of the combined frame, and the limiting support plate on the fixing seat 304 provides limiting and supporting for the combined frame and the bottom plate. Then the controller controls the solenoid valve 305 to be turned on, so that the pressing cylinder 3021 is inflated and the output shaft extends out of the cylinder body, the output shaft of the pressing cylinder 3021 pushes the pressing rod 3022 to rotate, under the combined action of the connecting rod 3023, the pressing head 3025 can be rotated to the top surface of the bottom plate and apply downward pressing force to the bottom plate, so that the bottom plate is pressed and fixed to the top of the combined frame, and the bottom plate and the combined frame are fixed, at this time, the welding head 3031 can be driven to move along the welding track preset by the bottom plate and the combined frame, so as to stir friction welding the bottom plate, when the welding head 3031 moves close to a certain pressing head 3025, the controller can control the output shaft of the pressing cylinder 3021 to contract to rotate the pressing rod 3022, so that the pressing head 3025 rotates out of the bottom plate without blocking interference to the welding operation of the welding head 3031, when the welding head 3031 completes the welding of the position of the pressing head 3025 and moves forward, the output shaft of the pressing cylinder 3021 is controlled to reset, so that the pressing head 3025 rotates back to the bottom plate in the state of pressing the fixed bottom plate, so that the bottom plate is stably fixed, thereby ensuring that the welding of the box body of the battery box is accurately welded, and the battery box is formed.

As shown in figure 1, after the bottom plate was welded to the combination frame and formed the main body frame of battery box, transfer robot 10 snatched battery box to water injection well choke welding unit 4, was equipped with water injection well choke welding robot in the water injection well choke welding unit 4, welded the water injection well choke on the bottom plate automatically, and follow-up can arrange the manual work to carry out repair welding and water injection well choke welding robot to repair welding according to water injection well choke welding condition, and the here is no longer repeated.

After the water injection well choke welding is accomplished, transfer robot 10 snatchs the battery box to whole machining unit 5 and processes, and whole machining center is used for processing pilot hole and accessory mounting hole etc. on the battery box. In this embodiment, the integral machining unit 5 includes a front machining center 501, a second roll-over stand 502 and a back machining center 503, the transfer robot 10 first grasps the battery box to the front machining center 501 to process the assembly hole and the accessory mounting hole on the front of the battery box, then the transfer robot 10 grasps the battery box to the second roll-over stand 502, the second roll-over stand 502 is used to perform the back of the battery box, then the transfer robot 10 grasps the battery box after the back to the back machining center 503, and then the assembly hole and the accessory mounting hole on the back of the battery box are processed.

After the battery box body is processed by the integral machining unit 5, the carrying robot 10 grabs the battery box body to the tooth socket assembling unit 6, the tooth socket assembling unit 6 comprises a thread socket mounting device 601 and a third turning frame 602, and under the action of the reverse side of the third turning frame 602, the thread socket mounting unit 6 can be utilized to mount the thread sockets on the front side and the reverse side of the battery box body. Then the carrying robot 10 grabs the battery box body with the tooth socket installed to the automatic gluing and bushing automatic welding unit 7, the automatic gluing and bushing automatic welding unit comprises an automatic gluing machine 701 and a bushing automatic welding robot 702, the automatic gluing machine 701 is used for gluing the front side and the back side of the battery box body, then a guard plate bushing is installed manually, the bushing automatic welding robot 702 is used for welding the bushing, the carrying robot 10 grabs the battery box body with the welded bushing to the cleaning and stacking unit 8, a double-speed chain conveying line, a tray and a squirrel cage overturning machine are arranged in the cleaning and stacking unit 8, the carrying robot 10 takes the battery box body to the tray and places the battery box body on the tray for a period of time, the battery box body is dried, then the battery box body flows to the overturning machine along with the double-speed chain conveying line, so that the battery box body is subjected to repair welding, manual sealant coating and cleaning operation (a corresponding number of squirrel cage overturning machines can be arranged according to actual operation conditions, and the repair welding, the manual sealant coating and cleaning of the squirrel cage overturning machines are correspondingly arranged on the carrying robot 10.

Example two

The difference between the second embodiment and the first embodiment is that: in the first embodiment, the limit support blocks on the fixing base 304 are used to limit and support the bottom plate and the combined frame, and in this embodiment, in order to more accurately position the bottom plate and the combined frame, the fixing base 304 is provided with a positioning mechanism for automatically positioning the bottom plate and the combined frame.

As shown in fig. 5, the positioning mechanism includes a positioning unit 11 and a pushing unit 12, the number of the positioning unit 11 and the number of the pushing unit 12 are at least two, in this embodiment, the number of the pushing unit 12 is four, and the four pushing units 12 are all divided into the left side and the rear side of the combined frame in fig. 5; the number of the positioning units 11 is five, wherein three positioning units 11 are distributed on the front side of the combined frame, and the other two positioning units 11 are distributed on the right side of the combined frame. Referring to fig. 6, the positioning unit 11 is a stopper 1101 fixedly connected to the fixing base 304 by a screw, the pushing unit 12 is a pushing cylinder 1201 fixedly connected to the fixing base 304 by a screw, and an output shaft of the pushing cylinder 1201 is fixedly connected to a pushing block 1202 by a screw. After the combined frame and the bottom plate are placed on the limit support blocks on the fixing seat 304, the pushing cylinder 1201 on the left side of the combined frame in fig. 5 is used for pushing the combined frame and the stop block 1101 on the right side of the combined frame to the right, so that the bottom plate and the combined frame are fixed in the left-right direction, and then the pushing cylinder 1201 on the rear side of the combined frame is used for pushing the combined frame and the bottom plate to approach the stop block 1101 on the front side of the combined frame, so that the bottom plate and the combined frame are fixed in the front-back direction; finally, the controller controls the press head 3025 to press and fix the bottom plate in the vertical direction, so that the bottom plate and the combined frame are completely fixed.

As shown in fig. 1, in this embodiment, a manual repair welding unit is disposed behind both the frame automatic welding unit 1 and the bottom plate automatic welding unit 3, the manual repair welding unit includes a manual repair welding station 13 disposed on one side of the ground rail 9, and when four frames are welded into a combined frame and the bottom plate and the combined frame are welded into a battery box, the transfer robot 10 picks the combined frame or the battery box onto the manual repair welding station 13, and performs a repair welding operation manually, thereby ensuring the welding quality.

EXAMPLE III

The difference between the third embodiment and the first embodiment is that: as shown in fig. 7, in this embodiment, air tightness detection units are respectively disposed between the water nozzle welding unit 4 and the integral machining unit 5, and between the integral machining unit 5 and the thread sleeve assembling unit 6, each air tightness detection unit includes a semi-finished product air tightness detection station 14 and a finished product air tightness detection station 15, the semi-finished product air tightness detection station 14 is located on the right side of the water nozzle welding unit 4, and the finished product air tightness detection station 15 is located on the right side of the thread sleeve mounting device 601. After the water nozzle is welded on the battery box body, the welding tightness of the battery box body is detected by the semi-finished product air tightness detection station 14, and after the tooth socket is installed on the battery box body, the air tightness of a formed product is detected by the finished product air tightness detection station, so that the air tightness of the welded product is ensured to reach the standard.

The above description is only an example of the present invention, and the common general knowledge of the known technical solutions and/or characteristics is not described herein. It should be noted that, for those skilled in the art, without departing from the technical solution of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.

Claims

1. The utility model provides a new energy automobile battery box system of processing which characterized in that: the automatic carrying unit is used for welding the frame to form a combined frame; the automatic bottom plate welding unit comprises a processing table, a bottom plate welding mechanism and a plurality of fixing mechanisms arranged on the processing table, all the fixing mechanisms are arranged along a welding track preset by the bottom plate and the combined frame, and a control unit used for controlling the fixing mechanisms to press the fixed bottom plate or move the fixed bottom plate out of the bottom plate is arranged on the processing table.

2. The new energy automobile battery box processing system of claim 1, characterized in that: and a frame welding line processing unit is arranged between the frame automatic welding unit and the bottom plate automatic welding unit.

3. The new energy automobile battery box processing system of claim 2, characterized in that: and a water nozzle welding unit, an integral machining unit, a tooth sleeve assembling unit, an automatic gluing and bushing automatic welding unit and a cleaning and stacking unit are sequentially arranged behind the bottom plate automatic welding unit.

4. The new energy automobile battery box processing system of claim 3, characterized in that: the frame welding seam processing unit comprises a CNC milling machine and a first overturning frame which are arranged on one side of the automatic conveying unit; the integral processing unit comprises a front processing center, a second turnover frame and a back processing center.

5. The new energy automobile battery box processing system of claim 3, characterized in that: and air tightness detection units are arranged between the water nozzle welding unit and the integral machining unit and between the integral machining unit and the tooth socket assembling unit.

6. The new energy automobile battery box processing system of claim 2, characterized in that: and the frame automatic welding unit and the bottom plate automatic welding unit are respectively provided with a manual repair welding unit, and the processing table is provided with a positioning mechanism for automatically positioning the bottom plate and the combined frame.

7. The new energy automobile battery box processing system of claim 6, characterized in that: the positioning mechanism comprises at least two positioning units and at least two pushing units, all the positioning units are located on two adjacent sides of the frame, and all the pushing units are located on two adjacent sides of the frame.

8. The new energy automobile battery box processing system according to any one of claims 3 to 7, characterized in that: the automatic carrying unit comprises a ground rail and a plurality of carrying robots connected to the ground rail in a sliding mode, and the frame automatic welding unit, the frame welding seam processing unit, the bottom plate automatic welding unit, the water nozzle welding unit, the whole machining unit, the tooth socket assembling unit, the automatic glue beating and bushing automatic welding unit, the cleaning and stacking unit are sequentially arranged on two sides of the ground rail.

9. The new energy automobile battery box processing system of claim 8, characterized in that: the fixing mechanism comprises a pressing air cylinder, a pressing rod and a connecting rod, a fixed seat is connected to the processing table in a sliding mode, the pressing air cylinder is fixedly connected to the fixed seat, one end of the pressing rod is rotatably connected to the pressing air cylinder, one end of the connecting rod is rotatably connected to the fixed seat, and the other end of the connecting rod is rotatably connected to the side wall of the pressing rod; the control unit comprises a controller fixedly connected to the mounting seat, and the pressing air cylinder is electrically connected with the controller.

10. The new energy automobile battery box processing system of claim 9, characterized in that: the distance between adjacent fixing mechanisms is 150-300mm.