CN205989119U - A kind of cover plate of power battery welding equipment - Google Patents

Abstract

The utility model discloses a power battery cover plate welding device, which comprises a bottom plate, a front bracket, a rear bracket and an intermediate bracket, a first assembly line respectively arranged on the front bracket and a second assembly line arranged on one side of the first assembly line, and The first assembly line cooperates with the first manipulator for feeding and the second manipulator set opposite to the first manipulator, the turntable assembly on the bottom plate, the jacking and rotating mechanism on the upper part of the turntable assembly and the two sides of the jacking and rotating mechanism The positioning cylinder assembly is connected to the top of the jacking and rotating mechanism and cooperates with the battery clamp to clamp the battery. It is located around the turntable assembly and cooperates with the spot welding mechanism and full welding mechanism for welding the battery cover. The reset on the middle bracket mechanism, and the press-fit mechanism located on the middle bracket. The utility model effectively solves the technical problems that the welding of the existing battery cover plate needs to be manually operated by workers, resulting in complicated processing, low welding efficiency and welding precision, and the like.

Description

A power battery cover welding equipment

【Technical field】

The utility model relates to the technical field of laser welding, in particular to a power battery cover plate welding equipment.

【Background technique】

Lithium battery is a new generation of green high-energy battery with excellent performance, because it has the characteristics of high voltage, high capacity, low consumption, no memory effect, pollution-free, small size, low internal resistance, less self-discharge, and many cycles. It is widely used in many civil and military fields such as new energy vehicles, mobile phones, notebook computers, and tablet computers.

During the manufacturing process of the lithium battery, the battery cover needs to be welded to the sealing end of the battery case to seal the case. The welding of the existing lithium battery cover plate is carried out by workers using simple welding tools and fixtures for welding and positioning operations. This manual welding method is not only inaccurate in positioning, but also leads to a low yield rate. The method also needs to configure the corresponding production line for each workflow such as loading and unloading, press-fitting, positioning, welding, and calibration, so the entire production process is more cumbersome, welding accuracy, production efficiency and automation are lower, and labor intensity is higher. Large and can not meet the needs of mass production of lithium batteries.

【Content of invention】

To sum up, the main purpose of this utility model is to solve the existing technology that the welding of the battery cover plate needs to be manually operated by workers, resulting in a relatively cumbersome processing process, high production costs, low welding efficiency and welding precision, etc. problem, and provide a power battery cover plate welding equipment.

In order to solve the above-mentioned technical problems, the utility model provides a power battery cover plate welding equipment, comprising: a bottom plate, a front bracket, a rear bracket respectively arranged at the front and rear ends of the bottom plate, and an intermediate bracket fixedly connected to the top of the front bracket and the rear bracket, respectively The first assembly line arranged in the length direction of the front support and used for inputting the battery to be welded and the output of the battery after welding, and the second assembly line arranged on one side of the first assembly line and used for outputting defective products are respectively connected to the front support and The middle bracket is connected with the first manipulator for feeding in cooperation with the first assembly line, and the second manipulator for discharging with the first assembly line and the second assembly line is arranged opposite to the first manipulator, and is arranged on the bottom plate and The turntable assembly is located between the front support and the rear support and is used to rotate and switch between various stations, several jacking and rotating mechanisms are located on the upper part of the turntable assembly, and the two sides of each jacking and rotating mechanism are used to position the battery. A number of positioning cylinder components are connected above each jacking and rotating mechanism and cooperate with the battery clamp to clamp the battery. They are arranged around the turntable assembly and cooperate with the spot welding mechanism and full welding mechanism for welding the battery cover plate. They are arranged on the middle bracket The reset mechanism is arranged on the top and opposite to the full welding mechanism and is used to correct the angle error generated by the rotation of the turntable, and the press-fit mechanism is arranged on the middle support and used to correct and flatten the cover plate.

The turntable assembly includes: a turntable, a turntable motor arranged at the lower part of the turntable and connected to the turntable motor, a welding motor arranged at one side of the turntable motor and used to ensure welding accuracy when the jacking rotation mechanism rotates to the full welding position, uniform The four stations distributed on the circumferential surface of the turntable, the jacking rotation mechanism installed on each station and the battery fixture that is connected with the jacking rotation mechanism and the middle of the upper part of the turntable and connected with the turntable Slip ring assembly for coaxial connection of motor.

The first manipulator includes: a first translation platform, a first motor that is arranged on the first translation platform and drives it to reciprocate and move left and right, and is movably connected to the first grasping cylinder fixed plate on the first translation platform, fixed The first air cylinder connected to the fixing plate of the first grasping cylinder, the first air cylinder is connected with the battery clamp finger through the anti-collision mechanism connected thereon, and drives the battery clamp finger to open and clamp, the battery A first flexible sheet to prevent the battery from being pinched is also provided on the inner surface of the finger.

The second manipulator includes: a second translation platform, a second motor that is arranged on the second translation platform and drives it to reciprocate and move left and right, and is movably connected to the second grasping cylinder fixed plate on the second translation platform, fixed The second air cylinder connected to the second cylinder fixing plate, the elastic loading and unloading assembly movably connected to one side of the second air cylinder, and the mechanical gripper connected under the loading and unloading assembly for clamping the battery, the mechanical A second flexible sheet to prevent the battery from being pinched is also provided on the inner surface of the jaw.

The reset mechanism includes: a bearing seat bottom plate, a cylinder mounting plate fixedly connected to the bearing seat bottom plate, a reset motor mounting seat and an inductor mounting seat, which are fixed on the bearing seat bottom plate and located on the cylinder mounting plate and the reset motor mounting plate. The bearing seat between the seats is installed on the third cylinder on the cylinder mounting plate, the reset motor installed on the reset motor mounting seat, the rotating shaft coaxially installed on the bearing seat, coaxially installed on the upper end of the rotating shaft and The driven wheel and the pressure head connection block at the lower end, the driven wheel is driven and connected with the driving wheel set on the output shaft of the reset motor through the belt sleeved on it, and the pressure head connection block is connected with the pressure head connection block located at its bottom. The head seat is fixedly connected, and the indenter seat is embedded with the indenter, and a photoelectric sensor is also installed on the sensor mounting seat.

A positioning plate is fixedly connected to the rotating shaft, and a reset sensing sheet cooperating with the photoelectric sensor to sense a reset state is installed on the positioning plate.

The spot welding mechanism includes: a third translation stage installed on the bottom plate and movable along the X, Y, and Z axes, installed on the Z axis of the third translation stage and used for spot welding the battery cover The first laser welding head.

The full welding mechanism includes: a fourth translation stage installed on the rear bracket and movable along the X, Y, and Z axes, installed on the Z axis of the fourth translation stage and used for full welding of the battery cover. The second laser welding head for welding, the exhaust pipe fixed on one side of the second laser welding head, is coaxially connected to the laser exit head and used to prevent the dust generated by laser welding from flying outwards. The coaxial dust suction hood is provided with at least one air outlet for sucking out the dust. The air outlet is connected with the air outlet on the air exhaust pipe through the pipe, and the air exhaust pipe is connected with the external smoke purifier. The fume extractor sucks the dust out of the coaxial hood.

The press-fit mechanism includes: a press-fit seat fixedly connected to the intermediate bracket, a cylinder mounting plate and a buffer seat fixedly connected to the bottom of the press-fit seat respectively, installed on the press-fit seat and used for press-fitting the battery cover The fourth cylinder of the plate is installed on the cylinder mounting plate and used for correcting the position of the battery, the pressure plate fixedly connected to the movable end of the fourth cylinder and the pressure head fixed to the pressure plate.

The battery fixture includes: a fixture shell, a dust-proof plate arranged on the top of the fixture shell and used to prevent dust from entering, a fixture reference plate movable on the inside of the fixture shell, and an elastic connection between the fixture shell and the fixture reference plate. An elastic pressing mechanism between the plates and used to automatically compress the battery when the battery is placed.

Adopting the above technical scheme, compared with the prior art, the beneficial effect of the utility model is that: the utility model is provided with a first assembly line and a second assembly line which can be loaded and unloaded recyclably, and the battery to be welded is grabbed by the manipulator to the Positioning and clamping is carried out on the fixture of the turntable mechanism, and the battery cover is pressed on the battery case by the press-fitting mechanism, the battery cover and the battery case are clamped and positioned by the positioning cylinder assembly, and finally the spot welding mechanism and the The full welding mechanism welds the battery cover to the battery case, and the defective products are clamped by the second manipulator to the output of the second assembly line. The whole process is fully automated by the machine without manual intervention, thus greatly reducing labor intensity and production costs, and significantly improving work efficiency. The utility model also has the characteristics of high degree of automation and easy implementation.

【Description of drawings】

Fig. 1 is a three-dimensional schematic view of the overall structure of the utility model;

Fig. 2 is the structural representation of the first manipulator of the present utility model;

Fig. 3 is the structural representation of the first manipulator of the present utility model;

Fig. 4 is a schematic structural view of the turntable assembly of the present invention;

Fig. 5 is the structural representation of the spot welding mechanism of the present utility model;

Fig. 6 is a schematic structural view of the full welding mechanism of the present utility model;

Fig. 7 is a structural schematic diagram of the reset mechanism of the present invention;

Fig. 8 is a schematic structural view of the press-fitting mechanism of the present invention;

Fig. 9 is a schematic structural view of the battery clamp of the present invention;

Fig. 10 is another structural schematic diagram of the battery clamp of the present invention.

【detailed description】

The following examples are further explanations and supplements to the utility model, and will not constitute any limitation to the utility model.

As shown in Figures 1 to 10, a power battery cover plate welding equipment of the present invention includes a bottom plate 1, a front bracket 14, a rear bracket 15, an intermediate bracket 16, a first assembly line 2, a second assembly line 3, and a first manipulator. 4. The second manipulator 5, the turntable assembly 6, the jacking rotation mechanism 7, the positioning cylinder assembly 8, the battery clamp 9, the spot welding mechanism 10, the full welding mechanism 11, the reset mechanism 12, and the pressing mechanism 13.

As shown in FIG. 1 , the front bracket 14 and the rear bracket 15 are respectively arranged at the front and rear ends of the base plate 1 , and the middle bracket 16 is fixedly connected to the top of the front bracket and the rear bracket. The first assembly line 2 is arranged in the lengthwise direction of the front support 14, one end of which is used to input the battery to be welded for gripping by the manipulator, and the other end is used to output the battery after welding. The second assembly line 3 is arranged in the longitudinal direction of the front support 14 and on the side of the first assembly line 2, and is used for outputting defective batteries. The first manipulator 4 and the second manipulator 5 are respectively connected to the front support 14 and the middle support 16 and the second manipulator 5 is arranged on the opposite side of the first manipulator 4, and the first manipulator 4 cooperates with the first assembly line 2 Feeding, clamping the battery to be welded input by the first assembly line onto the turntable assembly 6 . The second manipulator 5 cooperates with the first assembly line 2 and the second assembly line 3 respectively to discharge materials. Further, the good battery is clamped by the second manipulator 5 to the output of the first assembly line 2, and the defective battery is clamped by the second manipulator 5 to the second pipeline output.

As shown in Figure 2, specifically, the first manipulator 4 includes: a first translation platform 41, a first motor 42 that is arranged on the first translation platform 41 and drives it to move back and forth left and right, and is movably connected to the first translation platform 41. The first grab material cylinder fixed plate 43 on the translation platform 41 is fixedly connected to the first cylinder 44 on the first grab material cylinder fixed plate, and the first cylinder 44 is connected to the battery clip by the anti-collision mechanism 45 connected thereto. The fingers 46 are connected to drive the battery clamp fingers to open and clamp. The inner surface of the battery clamp fingers 46 is also provided with a first flexible sheet to prevent the battery from being pinched.

As shown in Figure 3, specifically, the second manipulator 5 includes: a second translation platform 51, a second motor 52 that is arranged on the second translation platform 51 and drives it to move back and forth left and right, and is movably connected to the second translation platform 51. The second catch material cylinder fixed plate 53 on the translation platform 51 is fixedly connected to the second cylinder 54 on the second catch material cylinder fixed plate, the elastic loading and unloading assembly 55 that is movably connected to the second cylinder 54 one side, and is connected to the The mechanical jaw 56 under the loading and unloading assembly is used to clamp the battery, and the inner surface of the mechanical jaw 56 is also provided with a second flexible sheet to prevent the battery from being pinched.

As shown in Figure 4, the turntable assembly 6 is arranged on the base plate 1 and is located between the front support 14 and the rear support 15, which is used for precise rotation and switching between various stations, and the turntable assembly 6 includes: Turntable 61, the turntable motor 62 that is arranged on the lower part of the turntable and connected with it, and the welding motor 63 that is arranged on one side of the turntable motor and is used to ensure the welding accuracy when the jacking rotation mechanism 7 rotates to the full welding station, in the Four stations are evenly distributed on the circumferential surface of the turntable 61. In this embodiment, the four stations are respectively a loading station, a CCD detection station, a reset station and an unloading station. Each station is respectively equipped with a jacking and rotating mechanism 7 , a battery fixture 9 cooperating with the jacking and rotating mechanism 7 , and a slip ring assembly 64 arranged in the middle of the upper part of the turntable 61 and coaxially connected with the turntable motor 62 . In this embodiment, the turntable motor is a stepper motor, and the turntable motor performs precise rotation clockwise at each station with a unit of 90 degrees. In this embodiment, several jacking and rotating mechanisms 7 are provided on the upper part of the turntable assembly 6 to push out the top cover after the welding of the top cover is completed. Several positioning cylinder assemblies 8 for battery positioning are also provided with a battery clamp 9 for clamping the battery in cooperation with each jacking and rotating mechanism 7 .

As shown in FIG. 5 , the spot welding mechanism 10 is arranged around the turntable assembly 6 , and is used to weld individual spots on the contact surface of the battery cover. The spot welding mechanism 10 includes: a third translation platform 101 installed on the base plate 1 and movable along the X, Y, and Z axes, installed on the Z axis of the third translation platform 101 and used for aligning the battery cover The plate is spot welded with the first laser welding head 102 .

As shown in Figure 6, the full welding mechanism 11 is arranged around the turntable assembly 6, and it is used to melt and weld the contact part of the battery cover plate and the battery case. The full welding mechanism 11 includes: installed on the rear bracket 15 and the fourth translation stage 111 that can move along the X, Y, and Z axes, the second laser welding head 112 that is installed on the Z axis of the fourth translation stage 111 and is used for full welding of the battery cover, is fixed The exhaust pipe 113 that is located at the second laser welding head 112 side is coaxially connected on the laser emitting head 1 and is used to prevent the coaxial dust suction cover 114 that the dust generated by laser welding is scattered outwards. The dust hood is provided with at least one outlet hole 115 for sucking dust out. The outlet hole communicates with the exhaust hole 116 on the exhaust pipe 113 through a pipe, and the exhaust pipe 113 communicates with an external smoke purifier, and passes through the smoke. The purifier sucks out the dust in the coaxial dust suction hood 114 .

As shown in FIG. 7 , the reset mechanism 12 is arranged on the intermediate support 16 and opposite to the full welding mechanism 11 , which is used to correct the angular error generated by the rotation of the turntable. The reset mechanism 12 includes: a bearing seat bottom plate 121, a cylinder mounting plate 122 fixedly connected to the bearing seat bottom plate 121, a reset motor mounting seat 123 and an inductor mounting seat 124, which are fixed on the bearing seat bottom plate 121 and located on the bearing seat bottom plate 121. The bearing seat 125 between the cylinder mounting plate and the reset motor mounting seat is installed on the cylinder mounting plate 122, the third cylinder 126, and the reset motor 127 installed on the reset motor mounting seat 123 is coaxially installed on the bearing seat 125 The rotating shaft (not shown in the figure), the driven wheel 129 and the pressure head connecting block 1210 coaxially installed on the upper and lower ends of the rotating shaft, the driven wheel 128 is set on the reset motor through the belt 1211 sleeved on it The driving wheel 1212 on the 126 output shaft is driven and connected, and the pressure head connecting block 1210 is fixedly connected with the pressure head seat 1213 located at its bottom, and the pressure head seat is embedded with the pressure head 1214. 124 is also equipped with a photoelectric sensor 1215. Further, a positioning plate 1281 is fixedly connected to the rotating shaft 128, and a reset sensing piece 1282 that cooperates with the photoelectric sensor 1215 to sense a reset state is mounted on the positioning plate.

As shown in FIG. 8 , the press-fitting mechanism 13 is arranged on the middle support 16 and is used for correcting and pressing the cover plate. The press-fit mechanism 13 includes: a press-fit seat 131 fixedly connected to the intermediate support 16, a cylinder mounting plate 132 and a buffer seat 133 fixedly connected to the bottom of the press-fit seat 131 respectively, installed on the press-fit seat 131 The fourth cylinder 132 for press-fitting the battery cover, the correction cylinder 134 installed on the cylinder mounting plate 132 and used for correcting the position of the battery, the pressing plate 135 fixedly connected to the movable end of the fourth cylinder 132 and A pressure head 136 affixed to the pressure plate.

As shown in Figure 9 and Figure 10, the battery clamp 9 includes: a clamp housing 91, a dust-proof plate 92 arranged on the top of the clamp housing and used to prevent dust from entering, and a clamp that is movable inside the clamp housing 91 The reference plate 93, and the elastic pressing mechanism 94 elastically connected between the clamp housing 91 and the clamp reference plate 93 and used for automatically compressing the battery after the battery is put in.

The action flow of the present utility model is as follows:

Firstly, the material is supplied by the automatic transfer vehicle outside the workbench, and the material is passed through the first assembly line. The battery is transported to the first manipulator through the first assembly line, and is clamped to the clamp of the turntable assembly by the first manipulator, and passed through the rotating assembly. The turntable motor is driven to rotate. First, the battery is rotated to the spot welding mechanism to weld individual points on the contact surface of the battery cover, and then the turntable is rotated to the full welding mechanism to weld all the contact parts of the battery cover and the battery case. After the welding is completed, it is detected by the CCD detection device. If the product is found to be poorly welded, it will pass through the second machine and put the defective product into the second assembly line for output. Pipeline output. So far the operation of the utility model is all completed.

Although the utility model has been disclosed through the above embodiments, the scope of the utility model is not limited thereto. Under the condition of not departing from the concept of the utility model, the above components can be realized by similar or equivalent elements understood by those skilled in the art replace.

Claims (10)

1. a kind of cover plate of power battery welding equipment is it is characterised in that include：Base plate（1）, it is respectively arranged on base plate（1）In front and back two The fore-stock at end（14）, after-poppet（15）And it is fixed in fore-stock and the intermediate support at after-poppet top（16）, it is respectively arranged on institute State fore-stock（14）On length direction and for inputting the first streamline of battery after battery to be welded and output welding（2）With And located at the first streamline（2）Side the second streamline for exporting defective products（3）, respectively with described fore-stock（14）And Intermediate support（16）Connect and with the first streamline（2）First mechanical hand of cooperation charging（4）And with this first mechanical hand （4）Be oppositely arranged and respectively with the first streamline（2）With the second streamline（3）Second mechanical hand of cooperation discharging（5）, located at Described base plate（1）Above and positioned at fore-stock（14）And after-poppet（15）Between and between each station rotation process rotating disk Assembly（6）, positioned at several jacking rotating mechanisms on rotary disc assembly top（7）And be used for located at each jacking rotating mechanism both sides Several positioning cylinder assemblies that battery is positioned（8）, it is connected to each jacking rotating mechanism（7）Top is simultaneously matched for clamping tightly with it The battery clamp of battery（9）, located at rotary disc assembly（6）Periphery simultaneously coordinates the spot-welding mechanism of welding battery cover board with it（10）And it is full Welding mechanism（11）, located at intermediate support（16）Upper and with full weld mechanism（11）It is oppositely arranged and is used for correct turntable rotation and produced The resetting-mechanism of angular error（12）, and located at intermediate support（16）Go up and be used for the press-loading device that cover plate correction is flattened （13）.

2. cover plate of power battery welding equipment according to claim 1 is it is characterised in that described rotary disc assembly（6）Including： Rotating disk（61）, rotary tray motor located at rotating disk bottom and with its drive connection（62）, located at described rotary tray motor side and be used for Work as jacking rotating mechanism（7）Ensure the welding motor of welding precision when turning at full weld station（63）, and located at described turn Disk（61）Top centre and rotary tray motor（62）Coaxially connected slip ring assembly（64）.

3. cover plate of power battery welding equipment according to claim 1 is it is characterised in that described first mechanical hand（4）Bag Include：First translation stage（41）, located at the first translation stage（41）Go up and drive the first motor that it back and forth moves left and right（42）, activity It is connected to described first translation stage（41）On the first material grasping cylinder fixed plate（43）, it is fixedly connected in the first material grasping cylinder fixed plate The first cylinder（44）, described first cylinder（44）By the anticollision mechanism being connected to it on（45）With battery gripping finger（46）It is connected Connect, and drive battery gripping finger to open and clamp, described battery gripping finger（46）Prevent that battery from crushing is additionally provided with inner surface One flexible sheets.

4. cover plate of power battery welding equipment according to claim 1 is it is characterised in that described second mechanical hand（5）Bag Include：Second translation stage（51）, located at the second translation stage（51）Go up and drive the second motor that it back and forth moves left and right（52）, activity It is connected to described second translation stage（51）On the second material grasping cylinder fixed plate（53）, it is fixedly connected in the second material grasping cylinder fixed plate The second cylinder（54）, it is movably connected in the second cylinder（54）The elastic loading and unloading assembly of side（55）, and be connected on this It is used for below blanking assembly clamping the mechanical grip of battery（56）, described mechanical grip（56）Being additionally provided with inner surface prevents electricity The second flexible sheets that pond crushes.

5. cover plate of power battery welding equipment according to claim 1 is it is characterised in that described resetting-mechanism（12）Bag Include：Pedestal base（121）, it is respectively fixedly connected with described pedestal base（121）On cylinder mounting plate（122）, reset Motor mount（123）And induction apparatuss mounting seat（124）, it is fixed on pedestal base（121）Upper and be located at cylinder mounting plate and Bearing block between reset motor mount（125）, it is arranged on cylinder mounting plate（122）Upper 3rd cylinder（126）, it is arranged on multiple Position motor mount（123）On reset motor（127）, it is coaxially mounted to described bearing block（125）On rotating shaft, be co-axially mounted Driven pulley in the upper and lower ends of described rotating shaft（129）And pressure head contiguous block（1210）, described driven pulley（128）By being sheathed on Belt thereon（1211）With located at reset motor（126）Drivewheel on output shaft（1212）Drive connection, described pressure head is even Connect block（1210）Then with the pressing head seat located at its bottom（1213）Affixed, this pressing head seat then with pressure head（1214）Embedded cooperation, institute State induction apparatuss mounting seat（124）On be also equipped with photoelectric sensor（1215）.

6. cover plate of power battery welding equipment according to claim 5 is it is characterised in that described rotating shaft（128）Upper fixation It is connected with location-plate（1281）, this location-plate is provided with and described photoelectric sensor（1215）Cooperation sensing reset state Reset sensing chip（1282）.

7. cover plate of power battery welding equipment according to claim 1 is it is characterised in that described spot-welding mechanism（10）Bag Include：It is arranged on described base plate（1）Upper and can be along the 3rd translation stage of X, Y, Z axis movement（101）, it is arranged on described 3rd translation stage （101）Z axis on and for battery cover board carried out with the first laser plumb joint of spot welding（102）.

8. cover plate of power battery welding equipment according to claim 1 is it is characterised in that described full weld mechanism（11）Bag Include：It is arranged on described after-poppet（15）Upper and can be along the 4th translation stage of X, Y, Z axis movement（111）, it is arranged on described Siping City Moving stage（111）Z axis on and for battery cover board carried out with the second laser plumb joint of full weld（112）, it is fixedly arranged on second laser Plumb joint（112）The exhaust column of side（113）, coaxially connected in described laser emitting head（1）Go up and be used for prevent laser welding The coaxial dust shield that produced dust outwards flies away（114）, this coaxial dust shield is provided with what dust was suctioned out by least one Venthole（115）, this venthole is through pipeline and exhaust column（113）On convulsion hole（116）It is connected, exhaust column（113）Then with Outside smoke purifier is connected, and by smoke purifier by coaxial dust shield（114）In dust suction out.

9. cover plate of power battery welding equipment according to claim 1 is it is characterised in that described press-loading device（13）Bag Include：It is fixedly connected on described intermediate support（16）On pressure mounting base（131）, it is respectively fixedly connected with pressure mounting base（131）Bottom Cylinder mounting plate（132）And buffing pad（133）, it is arranged on described pressure mounting base（131）Go up and be used for press-fit the 4th of battery cover board Cylinder（134）, it is arranged on described cylinder mounting plate（132）Go up and be used for correct the correction cylinder of battery location（135）, the company of fixation It is connected on described 4th cylinder（132）The pressing plate of movable end end（136）, the pressure head affixed with this pressing plate（137）, and be connected to The briquetting of pressure head both sides（138）.

10. cover plate of power battery welding equipment according to claim 1 is it is characterised in that described battery clamp（9）Bag Include：Fixture housing（91）, located at described fixture case top and for preventing the dust excluding plate of dust entrance（92）, it is movably arranged at folder Tool housing（91）The fixture datum plate of inner side（93）, and elastic connection is in fixture housing（91）And fixture datum plate（93）Between And the elastic hold-down mechanism for automatic impaction battery after putting into battery（94）.