CN110118939B - EOL test equipment - Google Patents
EOL test equipment Download PDFInfo
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- CN110118939B CN110118939B CN201910113851.XA CN201910113851A CN110118939B CN 110118939 B CN110118939 B CN 110118939B CN 201910113851 A CN201910113851 A CN 201910113851A CN 110118939 B CN110118939 B CN 110118939B
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- 238000012360 testing method Methods 0.000 title claims abstract description 58
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- 230000033001 locomotion Effects 0.000 claims abstract description 10
- 230000000712 assembly Effects 0.000 claims abstract description 8
- 238000000429 assembly Methods 0.000 claims abstract description 8
- 238000012937 correction Methods 0.000 claims description 33
- 238000000034 method Methods 0.000 claims description 7
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- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 230000003028 elevating effect Effects 0.000 abstract description 4
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- 238000005457 optimization Methods 0.000 description 13
- 239000000872 buffer Substances 0.000 description 8
- 238000001514 detection method Methods 0.000 description 4
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- 238000010586 diagram Methods 0.000 description 2
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- 238000013461 design Methods 0.000 description 1
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- 238000012986 modification Methods 0.000 description 1
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- 230000005693 optoelectronics Effects 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
- G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
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Abstract
The invention discloses EOL test equipment, which is technically characterized by comprising a needle bed mechanism, wherein the needle bed mechanism comprises a probe group; the automatic opposite-inserting mechanism comprises a driving cylinder and opposite-inserting assemblies, wherein the driving cylinder is used for driving the opposite-inserting assemblies to move close to or far away from the battery module; including automatic elevating system, needle bed mechanism and two automatic to inserting the mechanism all install automatic elevating system is last, automatic elevating system is used for driving needle bed mechanism with automatic to inserting the mechanism decline makes the plug is close to battery module motion, or drives needle bed mechanism with automatic to inserting the mechanism rise makes the plug keep away from battery module motion, but whole EOL test equipment automated operation tests, and can assemble together with battery module production line, reduces the manual work, has improved efficiency.
Description
Technical Field
The invention relates to the technical field of battery module testing equipment, in particular to automatic EOL testing equipment.
Background
In the testing procedure after the power battery module is assembled in the new energy industry, the temperature and the voltage in the battery module need to be tested, and the power battery module is connected with an external testing plug in an opposite inserting way through a socket in the battery module. For battery module EOL (End of Line Test/production Line offline Test application) comprehensive Test in the market, the traditional Test method mainly relies on manual detection, but because of huge data volume, the means of the Test tool are complex, so that the method can not adapt to the requirement of high efficiency of the current production on the product Test.
Disclosure of Invention
The invention aims to provide EOL test equipment, so as to achieve the purposes of automatic test, manual work reduction and efficiency improvement.
The technical aim of the invention is realized by the following technical scheme: EOL test equipment, its characterized in that:
comprises a needle bed mechanism, wherein the needle bed mechanism comprises a probe group;
The automatic opposite-inserting mechanism comprises a driving cylinder and opposite-inserting assemblies, wherein the driving cylinder is used for driving the opposite-inserting assemblies to move close to or far away from the battery module;
The automatic plug-in mechanism comprises an automatic lifting mechanism, wherein the needle bed mechanism and the two automatic plug-in mechanisms are all installed on the automatic lifting mechanism, and the automatic lifting mechanism is used for driving the needle bed mechanism and the automatic plug-in mechanisms to descend so that the plug moves close to the battery module, or driving the needle bed mechanism and the automatic plug-in mechanisms to ascend so that the plug moves away from the battery module.
As a further optimization, the automatic lifting mechanism comprises a driving motor, a screw pair, an upper top plate and a lifting plate, wherein the screw pair comprises a rotating screw and a moving nut, the driving motor drives the rotating screw to rotate, the moving nut is installed on the upper top plate, the upper top plate is located above the lifting plate, a lifting guide column is arranged between the upper top plate and the lifting plate, and the needle bed mechanism and the two automatic inserting mechanisms are all installed on the lifting plate.
As a further optimization, the lifting guide device comprises a frame, wherein a positioning plate is arranged on the frame and is positioned between the upper top plate and the lifting plate, the driving motor is arranged on the positioning plate, the lifting guide posts penetrate through the positioning plate, and the number of the lifting guide posts is at least two.
As a further optimization, the automatic lifting mechanism comprises a photoelectric limit switch, and the photoelectric limit switch is electrically connected with the driving motor.
As further optimization, the needle bed mechanism comprises a stroke limit column, a position sensing block and a photoelectric switch, wherein the stroke limit column and the probe group are simultaneously contacted with the battery module, the position sensing block is arranged at the top of the stroke limit column, the photoelectric switch is arranged at a position on the lifting plate corresponding to the position sensing block, and the photoelectric switch is electrically connected with the driving motor;
When the stroke of the needle bed mechanism towards the battery module is beyond the required stroke, the lower end of the stroke limiting column is abutted against the battery module to enable the stroke limiting column to ascend, the position sensing block ascends, the photoelectric switch senses that the position sensing block ascends, and the driving motor is closed or drives the needle bed mechanism to move upwards away from the battery module.
As further optimization, the bottom of the lifting plate is provided with two clamping grooves, the needle bed mechanism comprises a mounting frame, the probe group is mounted on the mounting frame, and the front side end and the rear side end of the mounting frame are respectively inserted into the two clamping grooves.
As further optimization, the battery module comprises a shell thimble mechanism, wherein the shell thimble mechanism comprises a driving assembly and a testing assembly, the driving assembly drives the testing assembly to move close to or far away from the battery module, and the testing assembly comprises a shell probe for measuring the shell of the battery module.
As a further optimization, there are at least two shell probes.
As a further optimization, the automatic opposite-inserting mechanism further comprises a cylinder fixing plate and screws, the driving cylinder is installed on the cylinder fixing plate, the lifting plate is provided with a cushion block, a plurality of mounting holes are formed in the cushion block, the mounting holes are formed in the cylinder fixing plate, and the screws are inserted into the mounting holes in the cylinder fixing plate and the mounting holes in the cushion block so as to achieve the purpose that the cylinder fixing plate is installed on the cushion block.
As a further optimization, the automatic inserting mechanism comprises an automatic deviation rectifying component, the inserting component is installed on the automatic deviation rectifying component, and the automatic deviation rectifying component comprises:
the mounting piece is used for being connected with the driving cylinder;
a bearing seat connected with the mounting piece;
The connection between the mount and the carrier is a relatively movable connection, the relative movement having a non-longitudinal component;
The bearing seat is provided with a forward correction block, the correction block is provided with a right opposite surface and a guide inclined surface, and if the guide inclined surface firstly contacts the battery module in the process that the bearing seat is driven to move forward by the driving cylinder, the bearing seat is guided by the guide inclined surface to move relatively along with the battery module until the right opposite surface contacts the battery module.
In summary, the invention has the following beneficial effects: this EOL test equipment realizes needle bed mechanism and automatic lift to inserting the mechanism through automatic elevating system, realizes automatic and battery module's socket to inserting through automatic structural design to inserting the mechanism, and whole EOL test equipment can automatic operation test, and can assemble together with battery module production water line, reduces the manual work, has improved efficiency.
Drawings
FIG. 1 is a schematic diagram of the cooperation of an EOL test device according to an embodiment with a battery module;
FIG. 2 is an enlarged schematic illustration of a housing thimble mechanism of the EOL test device according to an embodiment;
FIG. 3 is an enlarged schematic view of the EOL test equipment according to one embodiment with a portion of the chassis removed;
FIG. 4 is an enlarged schematic mating view of the lifter plate, needle bed mechanism, and automatic centering mechanism of the EOL test device according to an embodiment, partially exploded;
FIG. 5 is an exploded enlarged schematic view of the needle bed mechanism of the EOL test device according to the embodiment;
FIG. 6 is an enlarged schematic view of one view of an EOL test device according to an embodiment, with the auto correcting assembly partially disassembled;
FIG. 7 is an enlarged schematic view of another view of an EOL test device according to an embodiment, with a self-deskewing assembly partially disassembled;
FIG. 8 is a schematic structural view of an dock assembly of an automatic dock mechanism of an EOL test device according to an embodiment;
FIG. 9 is an enlarged schematic illustration of the mating relationship of the plug mounting plate and slider of the automatic counter-insert mechanism of the EOL test device according to an embodiment, with portions cut away;
FIG. 10 is a schematic diagram of a partially disassembled configuration of an interposer assembly of an EOL test device according to an embodiment.
In the figure: 100. a battery module; 1. a frame; 11. a positioning plate; 111. a support rod; 2. an automatic lifting mechanism; 21. a driving motor; 22. a screw pair; 221. rotating a screw rod; 222. moving the nut; 23. an upper top plate; 24. a lifting plate; 241. a clamping groove; 242. a cushion block; 25. lifting the guide post; 26. a photoelectric limit switch; 261. a photoelectric sensor; 262. a photoelectric sensing sheet; 3. a needle bed mechanism; 31. a mounting frame; 311. a fastening hole; 312. a mounting groove; 32. a probe mounting plate; 33. a probe set; 34. a stroke limiting block; 340. a buffer spring; 35. a sense block; 36. an optoelectronic switch; 4. an automatic inserting mechanism; 41. a driving cylinder; 42. an automatic deviation rectifying component; 421. an opposite-plug assembly; 4211. a plug; 4212. a plug pushing cylinder; 4213. a connecting block; 4214. a connecting seat; 4215. a plug mounting plate; 4216. a slider; 42161. a limiting hole; 42612. a through hole; 422. a lateral correction block; 4221. a bayonet; 42211. a guide inlet; 42212. a right opposite face; 423. a vertical correction block; 4231. a guide slope; 4232. a right opposite face; 4233. a vertical adjusting screw; 424. a bearing seat; 4241. a linkage plate; 425. a transverse deviation correcting component; 4251. a transverse fixing plate; 4252. a transverse guide block; 4253. a transverse guide rail; 4254. a transverse limiting block; 426. a vertical deviation rectifying component; 4261. a vertical fixing plate; 42611. a vertical limit port; 42612. a mounting hole; 4262. a vertical guide block; 4263. a vertical guide rail; 4264. a vertical limiting block; 427. a mounting member; 43. a cylinder fixing plate; 44. a limit guide block; 45. a movable plate; 46. a spacing guide rail; 5. a housing ejector pin mechanism; 51. a drive assembly; 511. a power source; 512. a screw pair; 52. a testing component; 521. a housing probe; 61. a positioning pin; 62. a limiting pin; 63. an adjusting screw; 64. a return spring; 71. advancing the guide rail; 72. advancing the guide block.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Fig. 1 shows the structure of an EOL test apparatus, which includes a frame 1, and an automatic lifting mechanism 2, a needle bed mechanism 3 and two automatic inserting mechanisms 4 mounted on the frame 1, wherein the needle bed mechanism 3 and the two automatic inserting mechanisms 4 are mounted on the automatic lifting mechanism 2, and the two automatic inserting mechanisms 4 are respectively positioned at left and right sides and are used for inserting with sockets at left and right sides of a battery module 100. When the EOL test equipment is used, the EOL test equipment is installed with a battery module production line, the battery module 100 to be tested is transported to a fixed position below the frame 1 through the transmission mechanism, the automatic lifting mechanism 2 drives the needle bed mechanism 3 and the two automatic inserting mechanisms 4 to move close to the battery module 100 to be tested, the needle bed mechanism 3 is in contact with the battery module 100, and the two automatic inserting mechanisms 4 are respectively inserted with sockets at the front end and the rear end of the battery module 100 to be tested to perform relevant detection.
As shown in fig. 1 and 2, the EOL testing apparatus further includes a housing thimble mechanism 5, where the housing thimble mechanism 5 is used to test a housing of the battery module to be tested. The housing thimble mechanism 5 comprises a driving assembly 51 and a testing assembly 52, the driving assembly 51 comprises a power source 511 and a screw pair 512, the power source 511 is a motor, the testing assembly 52 is arranged on the screw pair 512, and the testing assembly 52 comprises a housing probe 521 for testing the housing of the battery module. The power source 511 drives the testing component 52 to move close to the battery module through the screw pair 512, so that the shell probe 521 contacts with the shell of the battery module, and after detection is completed, the power source 511 drives the testing component 52 to move away from the battery module through the screw pair 512. As an optimization, the case probes 521 are provided in four, and a plurality of case probes 521 can better and effectively judge whether there is a case contacting the battery module.
As shown in fig. 1 and 3, the automatic lifting mechanism 2 includes a driving motor 21, a screw pair 22, an upper top plate 23 and a lifting plate 24, a positioning plate 11 is provided on the frame 1, and the driving motor 21 is mounted on the positioning plate 11. The driving motor 21 drives the rotating screw 221 of the screw pair 22 to rotate through a belt, the moving nut 222 of the screw pair 22 is arranged on the upper top plate 23, lifting guide rods 25 are arranged between four corners of the upper top plate 23 and four corners of the lifting plate 24, and the four lifting guide rods 25 penetrate through the positioning plate 11. The needle bed mechanism 3 and the two automatic inserting mechanisms 4 are both mounted on the lifting plate 24. After the driving motor 21 is started, the driving motor 21 drives the rotating screw 221 to rotate, so that the moving nut 222 moves upwards or downwards, the moving nut 222 drives the upper top plate to move upwards or downwards, the upper top plate 23 drives the lifting plate 24 to ascend or descend, and the lifting plate 24 drives the needle bed mechanism 3 and the two automatic opposite inserting mechanisms 4 on the lifting plate 24 to ascend or descend. The four lifting guide rods 25 are in limit fit with the positioning plate 11, so that lifting stability can be effectively ensured. The automatic lifting mechanism 2 further includes a photoelectric limit switch 26, and the photoelectric limit switch 26 is electrically connected to the driving motor 21. The photoelectric limit switch 26 includes a plurality of photoelectric sensors 261 and a photoelectric sensing piece 262, the positioning plate 11 is provided with a support rod 111, the support rod 111 passes through the upper top plate 23, the plurality of photoelectric sensors 261 are mounted on the support rod 111, and the photoelectric sensing piece 262 is mounted on the upper top plate 23. When the upper top plate 23 is lifted, the upper top plate 23 moves relative to the support rod 111, and position sensing is realized through cooperation of the photoelectric sensing piece 262 and the photoelectric sensor 261, so that the upper top plate 23 is prevented from being lifted or lowered excessively.
As shown in fig. 4 and 5, the needle bed mechanism 3 includes a mounting frame 31, a probe mounting plate 32, and two sets of probe groups 33, the two sets of probe groups 33 being mounted on the probe mounting plate 32, the probe mounting plate 32 being mounted on the mounting frame 31, the mounting frame 31 being mounted on the lifter plate 24. Two clamping grooves 241 are formed in the lower end of the lifting plate 24, the mounting frame 31 is clamped between the two clamping grooves 241, and the mounting and fastening are achieved by tightening screws. When the disassembly is needed, the screw is unscrewed, and the mounting frame 31 is pulled out. Waist-shaped fastening holes 311 are formed in the mounting frame 31, screws are inserted into the fastening holes 311 to be screwed on the lifting plate 24, and the waist-shaped fastening holes 311 enable the mounting frame 31 and the needle bed mechanism 3 to be finely adjusted in position in the left-right direction during mounting. Two mounting grooves 312 are formed in the lower end of the mounting frame 31, the probe mounting plate 32 is inserted between the two mounting grooves 312, and the mounting and fixing are achieved by tightening screws. The needle bed mechanism 3 comprises a travel limit column 34, an induction block 35 and a photoelectric switch 36, and the photoelectric switch 36 is electrically connected with the driving motor 21 of the automatic lifting mechanism 2. The stroke limit post 34 is mounted on the probe mounting plate 32, the lower end of the stroke limit post 34 passes through the probe mounting plate 32, and the lower end surface of the stroke limit post 34 and the probe group 33 simultaneously contact the battery module 100. The part of the travel limit post 34 below the probe mounting plate 32 is sleeved with a buffer spring 340, one end of the buffer spring 340 is fixed at the lower end of the travel limit post 34, and the other end is fixed at the lower end face of the probe mounting plate 32. The sensing block 35 is mounted at the upper end of the travel limit column 34, and the photoelectric switch 36 is mounted on the lifting plate 24 at a position corresponding to the sensing block 35. When the parameter set by the EOL test equipment program is wrong, the stroke of the needle bed mechanism 3 towards the battery module is beyond the required stroke, the lower end of the stroke limit column 34 is propped against the battery module to enable the stroke limit column 34 to ascend, the sensing block 35 ascends, the photoelectric switch 36 senses that the sensing block 35 ascends, and the driving motor 21 is turned off or the needle bed mechanism 3 is driven to move upwards away from the battery module, so that the function of protecting the battery module is achieved. As further optimization, the stroke limiting column 34, the sensing block 35 and the photoelectric switch 36 are divided into two groups, so that the false alarm rate can be effectively reduced, and the protection effect is better achieved.
As shown in fig. 4, the two automatic inserting mechanisms 4 each include a driving cylinder 41 and an automatic deviation rectifying assembly 42, the driving cylinders 41 are mounted on the lifting plate 24, and the driving cylinders 41 are used for driving the automatic deviation rectifying assemblies 42 to move close to or away from the battery module 100. Two cushion blocks 242 are arranged on the lifting plate 24 at intervals, the driving cylinder 41 is fixedly arranged on the cylinder fixing plate 43, and the cylinder fixing plate 43 is arranged on the two cushion blocks 242 through screws. The two cushion blocks 242 are provided with a plurality of mounting holes, and when the air cylinder fixing plate 43 is mounted, the mounting holes corresponding to the different mounting holes on the cushion blocks 242 can be mounted at different positions, so that the automatic opposite inserting mechanism 4 can be adjusted according to the length of the battery module 100 to be tested. The lifting plate 24 is provided with a limit guide block 44, the automatic opposite-inserting mechanism 4 comprises a movable plate 45, the bottom of the movable plate 45 is provided with a limit guide rail 46, the limit guide rail 46 is installed together with the limit guide block 44, the telescopic rod of the driving cylinder 41 is connected with the movable plate 45, and the automatic deviation rectifying assembly 42 is installed on the movable plate 45. When the driving cylinder 41 pushes the automatic deviation rectifying component 42 to move, the movable plate 44 drives the automatic deviation rectifying component 42 to move, and the limit guide rail 46 moves relative to the limit guide block 44.
As shown in fig. 6 and 7, the automatic deviation rectifying assembly 42 includes an inserting assembly 421, a transverse correcting block 422, a vertical correcting block 423, a bearing seat 424, a transverse correcting assembly 425, a vertical correcting assembly 426 and an installing member 427, the automatic deviation rectifying assembly 42 is installed on the movable plate 44 through the installing member 427, the inserting assembly 421 includes a plug 4211, and the plug 4211 is used for longitudinally inserting a socket of the battery module 100 to be tested. The lateral and vertical correction assemblies 425, 426 are mounted between the mounting member 427 and the carrier 424 such that the connection between the mounting member 427 and the carrier 424 is a relatively movable connection having a non-longitudinal component, in this embodiment comprising a lateral component and a vertical component, the lateral correction assembly 425 being adapted to effect relative movement of the lateral component and the vertical correction assembly 426 being adapted to effect relative movement of the vertical component. The lateral correction block 422 and the vertical correction block 423 are correction blocks, the correction blocks have opposite faces and guide inclined planes, and if the guide inclined planes of the correction blocks contact the battery module 100 first in the process that the bearing seat 424 is driven by the driving cylinder 41 to move forward near the battery module 100, the bearing seat 424 moves relatively against the battery module 100 under the guide of the guide inclined planes until the opposite faces of the correction blocks contact the battery module 100. To effect relative movement of the mounting member 427 and the carrier 424, in other embodiments, relative movement in multiple directions may be achieved by a universal joint, ball joint, or the like.
As shown in connection with fig. 1, 6 and 7, the lateral correction block 422 is provided with a flared bayonet 4221, the bayonet 4221 comprising a guide inlet 42211 and a facing surface 42212, the guide inlet 42211 tapering from outside to inside and being curved, and the guide inlet 42211 being a guide ramp of the lateral correction block 422. Because the battery module 100 is fixed, if the guide inlet 42211 of the lateral correction block 422 contacts the battery module 100 first during the driving and advancing process of the carrier 424, the carrier 424 moves laterally against the battery module 100 under the guide of the guide inlet 42211 of the lateral correction block 422 until the opposite face 42212 of the lateral correction block 422 contacts the battery module 100. A guide post 4220 is disposed between the lateral correction block 422 and the carrier 424, and a buffer spring (not shown) is disposed between the guide post 4220 and the carrier 424, so that when the travel of the carrier 424 and the lateral correction block 422 towards the battery module 100 is too long, the buffer spring buffers the retraction. The lateral deviation rectifying assembly 425 includes a lateral fixing plate 4252, a lateral guide block 4252 and a lateral guide rail 4253, the lateral guide block 4252 is mounted on the front end surface of the lateral fixing plate 4251, the lateral guide block 4252 is mounted on the lateral guide rail 4253, and the lateral guide block 4252 and the lateral guide rail 4253 are vertically limited to each other. The carrier 424 is provided with a linkage plate 4241, the transverse guide rail 4253 is mounted on the rear end face of the linkage plate 4241, the carrier 424 is mounted on the front end face of the linkage plate 4241, and the transverse fixing plate 4251 is located on the rear side of the linkage plate 4241. When the carrier 424 is moved laterally, the lateral rail 4253 moves laterally relative to the lateral guide 4252, such that the carrier 424 moves laterally relative to the mount 427. As an optimization, both the left and right ends of the front end surface of the transverse fixing plate 4251 are provided with transverse limiting blocks 4254, and the transverse limiting blocks 4254 are used for limiting and preventing the transverse guide blocks 4252 from sliding out of the transverse guide rail 4253.
As shown in fig. 1, 6 and 7, the vertical correction block 423 is provided with a guide slope 4231 and a facing surface 4232, and if the guide slope 4231 of the vertical correction block 423 contacts the battery module 100 first in the process that the bearing seat 424 is driven to move forward, the bearing seat 424 moves vertically against the battery module 100 under the guide of the guide slope 4231 of the vertical correction block 423 until the facing surface 4232 of the vertical correction block 423 contacts the battery module 100. A guide post 4230 is arranged between the vertical correction block 423 and the bearing seat 424, and a buffer spring is arranged between the guide post 4230 and the bearing seat 423. In the process that the vertical correction block 423 contacts the battery module 100, the vertical correction block 423 is stressed to transversely move towards the bearing seat 423, and the buffer spring plays a role in buffering and resetting driving. A vertical adjusting screw 4233 is arranged above the vertical correcting block 423, and the vertical adjusting screw 4233 is used for adjusting the vertical installation position of the vertical correcting block 423. The vertical deviation rectifying assembly 426 includes a vertical fixing plate 4261, a vertical guide block 4262 and a vertical guide rail 4263, the vertical guide rail 4263 is mounted on the rear end face of the lateral fixing plate 4251, and the vertical guide block 4262 is mounted on the front end face of the vertical fixing plate 4261. The vertical guide blocks 4262 are mounted on the vertical guide rail 4263, and the vertical guide blocks 4262 and the vertical guide rail 4263 are mutually limited in the lateral direction. When the bearing seat 424 moves vertically, the vertical guide rail 4263 moves vertically relative to the vertical guide block 4262, so that the bearing seat 424 moves vertically relative to the mounting piece 427.
As shown in conjunction with fig. 1, 6 and 7, as an optimization, the vertical deviation rectifying assembly 426 includes a vertical limiting block 4264, the vertical limiting block 4264 is mounted on the rear end surface of the transverse fixing plate 4251, the vertical fixing plate 4261 is provided with a vertical limiting port 42611, the vertical limiting block 4264 is inserted into the vertical limiting port 42611, and the vertical height of the vertical limiting port 42611 is greater than that of the part of the vertical limiting block 4264 inserted into the vertical limiting port 42611. Due to self gravity, the vertical limiting block 4264 is in contact with the lower end of the vertical limiting port 42611 in a normal state, when the vertical automatic deviation correction is performed, the vertical limiting block 4264 moves upwards, and the vertical limiting block 4264 is matched with the vertical limiting port 42611 to limit the vertical adjustment amount.
As shown in fig. 1,6 and 7, a mounting member 427 is mounted on the rear end of the vertical fixed plate 4261, the mounting member 427 being for mounting the automatic deviation correcting and inserting mechanism on the movable plate 44. The mounting piece 427 is provided with a vertical kidney-shaped mounting hole 4271, the vertical fixing plate 4261 is provided with a mounting hole 42612, screws are sequentially inserted into the mounting hole 4271 and the mounting hole 42612, mounting and fixing between the mounting piece 427 and the vertical fixing plate 4261 are achieved, the kidney-shaped mounting hole 4271 is arranged, the vertical fixing plate 4261 can be slightly higher or shorter as required when being mounted on the mounting piece 427, accordingly coarse setting of the vertical position of the plug 4211 is achieved, the vertical height of the kidney-shaped mounting hole 4271 is larger than the vertical height of the vertical limiting opening 42611, the kidney-shaped mounting hole 4271 is used for coarse setting of the vertical position of the plug 4211, and the vertical deviation correcting assembly 426 is used for fine adjustment of the vertical position of the plug 4211. The amount by which the vertical position of the plug 4211 is adjustable via the mounting hole 4271 is greater than the amount by which the vertical position of the plug 4211 is adjustable via the vertical offset assembly 426.
As shown in fig. 8, 9 and 10, the opposite plug assembly 421 includes a plug pushing cylinder 4212, a connection block 4213, a connection block 4214, a plug mounting plate 4215 and a slider 4216, wherein a telescopic rod of the plug pushing cylinder 4212 is mounted with the connection block 4213, the connection block 4213 is mounted and fixed on the connection block 4214, and the plug mounting plate 4215 is mounted and fixed on the connection block 4214. The plug 4211 is provided on the slider 4216, and the slider 4216 is mounted on the plug mounting plate 4215 by a positioning pin 61 and a positioning pin 62, the positioning pin 61 being located on the rear side of the positioning pin 62. The limiting hole 42161 is formed in the floating block 4216, the limiting pin 62 penetrates into the limiting hole 42161, a certain gap exists between the limiting hole 42161 and the limiting pin 62, the floating block 4216 can swing by taking the positioning pin 61 as an axis, the limiting pin 62 limits the swing amplitude of the floating block 4216, and when a socket on the battery module 100 to be tested has deviation within an error allowable range due to welding, the plug 4211 and the floating block 4216 can swing relative to the plug mounting plate 4215 to realize automatic correction and adjustment, so that the plug 4211 and the socket can be better inserted. The slider 4216 can swing freely in both directions by 0-3 deg., fine tuning in a small angle range. The clearance between the stop pin 62 and the stop hole 42161 affects the amplitude of the wobble of the slider 4216, in this embodiment, a 0.55mm clearance exists between the stop pin 62 and the stop hole 42161.
As shown in fig. 8, 9 and 10, the slider 4216 is preferably provided with a through hole 42162 therethrough, the through hole 42162 is perpendicular to the stopper hole 42161, the left and right ends of the through hole 42162 are inserted with adjusting screws 63, and a return spring 64 is provided between the two adjusting screws 63 and the slider 4216. When the slider 4216 swings relative to the plug mounting plate 4215, the two return springs 64 are stretched and compressed, and the elastic force generated by the two return springs 64 can drive the slider 4215 to swing and return automatically. The symmetrical arrangement of the two return springs 64 can adjust the balance of the forces on both sides of the floating block 4216 after the floating block 4216 swings and returns to the center, and the adjusting screw 63 presses the return springs 64 into the through hole 42162 or moves outwards to release the return springs 64, so that the balance of the forces on both sides of the floating block 4216 is adjusted.
As shown in fig. 8, 9 and 10, after the plug pushing cylinder 4212 is started, the telescopic rod is extended, and the telescopic rod drives the connecting base 4214 and the plug mounting plate 4215 to move through the connecting block 4213, so that the plug 4211 on the slider 4216 is inserted into the socket of the battery module 100. The carrier 424 has a push rail 71, the connector 4214 has a push guide 72, and the push guide 72 is engaged with the push rail 71, so that the push guide 72 moves linearly forward or backward along the push rail 71 when the connector 4214 is moved by the plug push cylinder 4212. The cooperation of the pusher guide 72 with the pusher guide 71 better ensures the rectilinear motion of the connector housing 4214 and thus the rectilinear motion of the plug 4211.
The operating principle of the EOL testing device is as follows: the battery module to be tested is transported to a fixed position below the frame 1 and is positioned and fixed, the driving motor 21 drives the lifting plate 24 to move downwards to be close to the battery module through the screw pair 22, the probe group 33 of the needle bed mechanism 3 is in contact with the battery module, the driving cylinder 41 drives the automatic deviation correcting assembly 42 to move to be close to the battery module, and after the position is adjusted through the matching of the transverse correction block 422 and the vertical correction block 423, the plug 4212 is inserted with a socket of the battery module 100 to perform relevant detection.
The above specific embodiments are provided for illustrative purposes only and are not intended to limit the invention, and modifications, no inventive contribution, to the above embodiments, may be made by those skilled in the art after having read the present specification, as long as they are within the scope of the claims of the present invention.
Claims (9)
1. EOL test equipment, its characterized in that:
comprises a needle bed mechanism, wherein the needle bed mechanism comprises a probe group;
The automatic opposite-inserting mechanism comprises a driving cylinder and opposite-inserting assemblies, wherein the driving cylinder is used for driving the opposite-inserting assemblies to move close to or far away from the battery module;
The automatic plug-in mechanism comprises an automatic lifting mechanism, wherein the needle bed mechanism and the two automatic plug-in mechanisms are both arranged on the automatic lifting mechanism, and the automatic lifting mechanism is used for driving the needle bed mechanism and the automatic plug-in mechanisms to descend so that the plug moves close to the battery module, or driving the needle bed mechanism and the automatic plug-in mechanisms to ascend so that the plug moves away from the battery module;
The automatic opposite inserting mechanism comprises an automatic deviation rectifying component, the opposite inserting component is arranged on the automatic deviation rectifying component, and the automatic deviation rectifying component comprises:
the mounting piece is used for being connected with the driving cylinder;
a bearing seat connected with the mounting piece;
The plug assembly comprises a plug pushing cylinder, a connecting block, a connecting seat, a plug mounting plate, a floating block and a plug, wherein a telescopic rod of the plug pushing cylinder is arranged together with the connecting block, the connecting block is fixedly arranged on the connecting seat, the plug mounting plate is fixedly arranged on the connecting seat, the plug is arranged on the floating block, the floating block is arranged on the plug mounting plate through a first locating pin and a second locating pin, the first locating pin is positioned at the rear side of the second locating pin, a locating hole is formed in the floating block, the second locating pin penetrates into the locating hole, a certain gap exists between the locating hole and the second locating pin, the floating block can swing by taking the first locating pin as an axis, the swing amplitude of the floating block is limited by the second locating pin, the floating block is provided with a through hole which penetrates vertically intersects with the locating hole, adjusting screws are inserted into the left end and the right end of the through hole, and reset springs are arranged between the two adjusting screws and the floating block;
The connection between the mount and the carrier is a relatively movable connection, the relative movement having a non-longitudinal component;
The bearing seat is provided with a forward correction block, the correction block is provided with a right opposite surface and a guide inclined surface, and if the guide inclined surface firstly contacts the battery module in the process that the bearing seat is driven to move forward by the driving cylinder, the bearing seat is guided by the guide inclined surface to move relatively along with the battery module until the right opposite surface contacts the battery module.
2. The EOL testing apparatus of claim 1, wherein: the automatic lifting mechanism comprises a driving motor, a screw pair, an upper top plate and a lifting plate, wherein the screw pair comprises a rotating screw and a moving nut, the driving motor drives the rotating screw to rotate, the moving nut is installed on the upper top plate, the upper top plate is located above the lifting plate, a lifting guide column is arranged between the upper top plate and the lifting plate, and the needle bed mechanism and the automatic opposite inserting mechanism are both installed on the lifting plate.
3. The EOL testing apparatus of claim 2, wherein: the lifting guide column comprises a frame, wherein a positioning plate is arranged on the frame and is positioned between the upper top plate and the lifting plate, the driving motor is arranged on the positioning plate, the lifting guide column penetrates through the positioning plate, and the number of the lifting guide columns is at least two.
4. The EOL testing apparatus of claim 2, wherein: the automatic lifting mechanism comprises a photoelectric limit switch, and the photoelectric limit switch is electrically connected with the driving motor.
5. The EOL testing apparatus of claim 2, wherein: the needle bed mechanism comprises a stroke limit column, a position sensing block and a photoelectric switch, wherein the stroke limit column and the probe group are simultaneously contacted with the battery module, the position sensing block is arranged at the top of the stroke limit column, the photoelectric switch is arranged at a position on the lifting plate corresponding to the position sensing block, and the photoelectric switch is electrically connected with the driving motor;
When the stroke of the needle bed mechanism towards the battery module is beyond the required stroke, the lower end of the stroke limiting column is abutted against the battery module to enable the stroke limiting column to ascend, the position sensing block ascends, the photoelectric switch senses that the position sensing block ascends, and the driving motor is closed or drives the needle bed mechanism to move upwards away from the battery module.
6. The EOL testing apparatus of claim 2, wherein: the lifting plate bottom is equipped with two draw-in grooves, needle bed mechanism includes the mounting bracket, the probe group is installed on the mounting bracket, both sides end inserts respectively two around the mounting bracket the draw-in groove.
7. The EOL testing apparatus of claim 1, wherein: the battery module comprises a shell thimble mechanism, wherein the shell thimble mechanism comprises a driving assembly and a testing assembly, the driving assembly drives the testing assembly to move close to or far away from the battery module, and the testing assembly comprises a shell probe for measuring the shell of the battery module.
8. The EOL testing apparatus of claim 7, wherein: at least two shell probes are arranged.
9. The EOL testing apparatus of claim 2, wherein: the automatic opposite-inserting mechanism further comprises a cylinder fixing plate and screws, the driving cylinder is arranged on the cylinder fixing plate, the lifting plate is provided with a cushion block, a plurality of mounting holes are formed in the cushion block, the cylinder fixing plate is provided with mounting holes, and the screws are inserted into the mounting holes in the cylinder fixing plate and the mounting holes in the cushion block so as to realize that the cylinder fixing plate is arranged on the cushion block.
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| CN201910113851.XA CN110118939B (en) | 2019-02-14 | 2019-02-14 | EOL test equipment |
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| CN201910113851.XA CN110118939B (en) | 2019-02-14 | 2019-02-14 | EOL test equipment |
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| CN110118939B true CN110118939B (en) | 2024-07-16 |
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| CN110763980B (en) * | 2019-11-04 | 2025-04-25 | 杭州沃镭智能科技股份有限公司 | A universal FCT device |
| CN111083152B (en) * | 2019-12-24 | 2022-04-01 | 东风航盛（武汉）汽车控制系统有限公司 | Communication protocol message structure applied to EOL automatic offline test and application thereof |
| CN112355986B (en) * | 2020-11-20 | 2024-05-28 | 无锡市朗迪测控技术有限公司 | Lifting clamping device for power assembly |
| CN117054877A (en) * | 2023-10-10 | 2023-11-14 | 宁德时代新能源科技股份有限公司 | Offline testing system of battery, battery production line and testing method |
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