CN114838874A - Automatic positioning device for air tightness test of battery pack - Google Patents
Automatic positioning device for air tightness test of battery pack Download PDFInfo
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- CN114838874A CN114838874A CN202210315660.3A CN202210315660A CN114838874A CN 114838874 A CN114838874 A CN 114838874A CN 202210315660 A CN202210315660 A CN 202210315660A CN 114838874 A CN114838874 A CN 114838874A
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- 238000012360 testing method Methods 0.000 title claims abstract description 42
- 230000007246 mechanism Effects 0.000 claims abstract description 14
- 238000001514 detection method Methods 0.000 claims description 38
- 239000004677 Nylon Substances 0.000 claims description 32
- 229920001778 nylon Polymers 0.000 claims description 32
- 230000000712 assembly Effects 0.000 claims description 19
- 238000000429 assembly Methods 0.000 claims description 19
- 238000000034 method Methods 0.000 claims description 9
- 238000007789 sealing Methods 0.000 claims description 8
- 238000004880 explosion Methods 0.000 claims description 5
- 238000007634 remodeling Methods 0.000 claims description 4
- 230000008901 benefit Effects 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 description 8
- 238000003780 insertion Methods 0.000 description 7
- 230000037431 insertion Effects 0.000 description 7
- 230000008569 process Effects 0.000 description 6
- 230000013011 mating Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/05—Programmable logic controllers, e.g. simulating logic interconnections of signals according to ladder diagrams or function charts
- G05B19/054—Input/output
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D1/00—Control of position, course, altitude or attitude of land, water, air or space vehicles, e.g. using automatic pilots
- G05D1/02—Control of position or course in two dimensions
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Aviation & Aerospace Engineering (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Mechanical Engineering (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The invention provides an automatic positioning device for a battery pack airtightness test, which comprises: a main frame; the first-stage floating mechanism comprises a first lifting device, a first support frame, a floating support, a floating positioning part, a floating positioning matching part, a floating fixing part and a primary positioning part; the first lifting device is fixedly connected to the main frame, and the output end of the first lifting device is connected to the first support frame; the floating support is movably connected to the first support frame; the floating positioning part and the floating positioning matching part are in positioning matching and are respectively arranged on the first support frame and the floating support; the initial positioning part is connected to the floating support; the secondary floating joint mechanism comprises an air tightness floating assembly and a joint assembly; the air-tight floating assembly is connected to the floating bracket; the joint assembly is connected to the airtight floating assembly. The automatic test device can realize full-automatic test, automatic positioning, safety, reliability and high efficiency, reduces labor cost and improves benefits.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the field of battery pack air tightness tests, in particular to an automatic positioning device for the battery pack air tightness tests.
[ background of the invention ]
The invention discloses a clamp for testing the air tightness of a battery pack, which is 202021782717.3, 2020.08.24 and CN213796050U, and particularly discloses a clamp for testing the air tightness of a battery pack. The power part is used as an actuating element to replace a spring, so that the stability and the durability of the clamping part are ensured, and the reliability of the air tightness test is further ensured.
But the patent uses a hand-held operation. On one hand, the manual testing efficiency is low, potential safety hazards exist, and a plurality of problems such as battery damage or personal safety accidents are caused. On the other hand, this patent does not adapt to the increasingly demanding automation lines of today's society.
[ summary of the invention ]
The invention aims to solve the technical problem of providing an automatic positioning device for a battery pack airtightness test, which is automatically operated and has high safety.
The invention is realized by the following steps: an automatic positioning device for a battery pack airtightness test, comprising:
a main frame;
the first-stage floating mechanism comprises a first lifting device, a first support frame, a floating support, a floating positioning part, a floating positioning matching part, a floating fixing part and a primary positioning part; the first lifting device is fixedly connected to the main frame, and the output end of the first lifting device is connected to the first support frame; the floating support is movably connected to the first support frame; the floating positioning part and the floating positioning matching part are in positioning matching and are respectively arranged on the first support frame and the floating support; the initial positioning part is connected to the floating support;
the secondary floating joint mechanism comprises an air tightness floating assembly and a joint assembly; the air-tight floating assembly is connected to the floating bracket; the joint assembly is connected to the airtight floating assembly.
Further, still include:
the limiting matching part is provided with a limiting hole and is fixedly connected to the main frame;
the limiting bracket is fixedly connected to the first supporting frame;
the limiting piece is movably connected to the limiting bracket and detachably inserted into the limiting hole;
the inductor bracket is fixedly connected to the limiting bracket;
the first detection device is fixedly connected to the inductor bracket and used for detecting whether the limiting part is inserted into the limiting hole or not.
Further, still include:
the first guide rail is vertically and fixedly connected to the main frame;
and the first sliding block is fixedly connected to the first support frame and is connected to the first guide rail in a sliding manner.
Further, the floating mount includes:
the two bearing supports are provided with grooves with one side surfaces open, and the two bearing supports are symmetrically and fixedly connected to the first support frame, and the side surfaces of the grooves are oppositely arranged;
a first ball bearing; wherein each groove is internally provided with a plurality of first ball bearings;
the sliding plates are arranged in the two grooves, are lapped on the first ball bearings and are in clearance fit with the grooves;
and the switching support is fixedly connected to the sliding plate.
Further, the floating positioning part comprises a first cylinder and a positioning pin; the first air cylinder is fixedly connected to the first support frame, and a piston rod is arranged vertically downwards; the positioning pin is vertically and fixedly connected to a piston rod of the first air cylinder;
the floating positioning matching part comprises a fixed block, and the fixed block is provided with a vertical positioning hole; the first cylinder drives the positioning pin to be inserted into the vertical positioning hole;
the floating fixing part comprises at least two second cylinders, the two second cylinders are fixedly connected to the first support frame, and the piston rod is vertically downwards fixedly connected to the switching support.
Further, the primary positioning portion includes:
the two side plates are symmetrically and fixedly connected to the switching support;
the two positioning pieces are fixedly connected to the side plates in a one-to-one correspondence mode and are used for positioning and matching with the matching pieces on the battery pack tool;
the second detection devices are fixedly connected to the side plates in a one-to-one correspondence manner and are used for detecting the relative positions between the positioning pieces and the matching pieces;
the two in-place detection rods are vertically and movably connected to the side plates in a one-to-one correspondence manner;
the two springs are sleeved on the in-place detection rods in a one-to-one correspondence mode, one end of each spring abuts against the side plate, and the other end of each spring abuts against the in-place detection rod;
and the two third detection devices are fixedly connected to the side plates in a one-to-one correspondence manner and are used for detecting whether the in-place detection rod reaches a preset position.
Further, the airtight floating assembly includes:
the secondary floating support is connected to the floating support;
the third cylinder is fixedly connected to the secondary floating support, and a piston rod is horizontally arranged;
the first moving plate is provided with a pushing block in a downward protruding mode, is movably connected to the secondary floating support in the horizontal direction and is fixedly connected to a piston rod of the third air cylinder;
the fourth cylinder is fixedly connected to the first moving plate, and a piston rod is arranged in a vertical direction;
the center of the first floating connecting plate is downwards provided with a second ball bearing and is fixedly connected with a piston rod of the fourth cylinder;
the middle points of the front, rear, left and right sides of the second floating connecting plate are respectively provided with a first connecting column in a downward convex manner;
the four corners of the third floating connecting plate are respectively provided with a second connecting column in an upward convex manner, the bottoms of the four corners and the bottom of the center are respectively provided with a third ball bearing downwards, and the middle points of the front, rear, left and right four sides are respectively provided with a limiting and avoiding groove; the limiting avoiding groove is in clearance fit with the first connecting column;
the top of the joint connecting plate is provided with a rectangular frame; four inner side surfaces of the rectangular frame are respectively provided with a fourth ball bearing; each fourth ball bearing forms an accommodating cavity; the accommodating cavity is in clearance fit with the push block;
wherein:
the push block is inserted into the accommodating cavity;
the second floating connecting plate is inserted on the third floating connecting plate in an inverted mode;
the first connecting columns are inserted into the limiting avoidance grooves in a one-to-one corresponding mode and then fixedly connected to the joint connecting plates;
each second connecting column is also fixedly connected to the first floating connecting plate;
the second ball bearing is lapped on the second floating connecting plate;
and each third ball bearing is lapped on the joint connecting plate.
Further, the joint assembly comprises a plug joint part and an inflation joint part;
the number of the plug joint parts and the number of the inflation joint parts are equal to the number of the air-tightness floating assemblies;
the plug head joint parts are fixedly connected with joint connecting plates of the air-tight floating assembly in a one-to-one correspondence and equal amount;
and the inflation joint parts are in one-to-one correspondence and are fixedly connected with the joint connecting plates of the rest air-tightness floating assembly.
Further, the plug connector portion includes: the plug mounting plate, the end profiling guide block, the plug, the fifth cylinder and the fourth detection device;
the plug mounting plate is fixedly connected with the corresponding joint connecting plate;
the fifth cylinder is fixedly connected to the plug mounting plate, and the piston rod is horizontally and fixedly connected to the plug; piston rods of the fifth cylinder and the third cylinder are arranged in the same direction;
the end profiling guide block is provided with a guide through hole, and the outer end face of the end profiling guide block is a profiling face; the inner end face of the end profiling guide block is fixedly connected to the plug mounting plate, and the plug penetrates into the guide through hole and is in clearance fit with the guide through hole;
the fourth detection device is fixedly connected to the plug mounting plate and used for detecting whether the outer end face of the end profiling guide block and the battery pack are positioned in place or not;
the inflation joint portion includes: the air-tight air-filling device comprises an air-filling mounting plate, an air-tight mounting plate, a sixth air cylinder, an air-tight air-filling shell, an air pipe joint, a screw joint, a sealing ring, a magnetic part, a nylon sleeve, an air-tight fixed seat, an explosion-proof nylon block, a seventh air cylinder, a clamping block and a fifth detection device;
the inflatable mounting plate is fixedly connected with the corresponding joint connecting plate;
the sixth air cylinder is fixedly connected to the air inflation mounting plate, and the piston rod is horizontally and fixedly connected to the air tightness mounting plate and the air tightness air inflation shell; piston rods of the sixth cylinder and the third cylinder are arranged in the same direction;
the outer side surface of the airtight inflating shell is provided with a first annular groove, and the right end surface of the airtight inflating shell is provided with a second annular groove and a third annular groove; the third annular groove is deeper than the second annular groove; the side surface of the air-tight inflating shell is provided with an air inlet; the bottom surface of the third annular groove is provided with an air outlet; the air outlet is communicated with the air inlet;
the nylon sleeve is sleeved on the first annular groove, and the outer surface of the nylon sleeve protrudes out of the outer side surface of the airtight inflating shell;
the air pipe joint is connected with the air inlet in an air-tight manner;
at least one sealing ring is clamped in the second annular groove and protrudes out of the right end face of the airtight inflating shell;
the screw rod joint is fixedly connected to the bottom surface of the third annular groove;
the magnetic part is fixedly connected to the right end of the screw rod joint;
the air tightness fixing seat is provided with a through hole along the horizontal direction, and a vertical through hole is formed in the right end of the air tightness fixing seat; the air tightness fixing seat is fixedly connected to the air tightness mounting plate, the air tightness inflating shell is inserted into the through hole, and the nylon sleeve is tightly pressed by the inner side wall of the through hole in an air tightness manner;
the number of the explosion-proof nylon blocks is two, and an arc-shaped chamfer is arranged on the two explosion-proof nylon blocks; the two anti-explosion nylon blocks are symmetrically and fixedly connected to the right end face of the air-tightness fixing seat, and the minimum diameter position between the two arc-shaped chamfers is larger than or equal to the diameter of the through hole;
the number of the seventh cylinder and the number of the fixture blocks are two; the seventh air cylinders are symmetrically oppositely and fixedly connected to two ends of the through hole; the fixture blocks are fixedly connected to the piston rods of the seventh cylinder in a one-to-one correspondence manner, inserted into the through holes and in clearance fit with the through holes;
and the fifth detection device is fixedly connected with the air tightness fixing seat and used for detecting whether the explosion-proof nylon block and the battery pack are positioned in place or not.
Further, still include the remodeling subassembly, the remodeling subassembly includes:
the first switching sliding plate is movably connected to the floating support along the horizontal direction, and the moving direction of the first switching sliding plate is vertical to the piston rod of the third cylinder;
the eighth cylinder is fixedly connected to the first switching sliding plate, and a piston rod is fixedly connected to the floating support; piston rods of the eighth cylinder and the third cylinder are vertical;
the second switching sliding plate is movably connected to the floating support along the horizontal direction, and the moving direction of the second switching sliding plate is vertical to the piston rod of the third air cylinder;
the ninth cylinder is fixedly connected to the second switching sliding plate, and a piston rod is fixedly connected to the floating support; piston rods of the ninth cylinder and the third cylinder are vertical;
wherein, the number of the airtight floating components is six; three plug joint parts are provided; three inflation joint parts are provided;
one air-tight floating assembly is fixedly connected to the floating support, is positioned between the first switching sliding plate and the second switching sliding plate and is fixedly connected with an air inflation joint part;
the three air tightness floating assemblies are fixedly connected to the first switching sliding plate at intervals according to a preset interval and are fixedly connected with the plug joint parts in a one-to-one correspondence manner;
the rest two air tightness floating assemblies are fixedly connected to the second switching sliding plate at intervals according to a preset interval and are fixedly connected with the rest air inflation joint parts in a one-to-one correspondence manner;
the air-tight floating assemblies are arranged in parallel and in the same direction.
The invention has the advantages that: an automatic positioning device for a battery pack airtightness test, comprising: a main frame; the first-stage floating mechanism comprises a first lifting device, a first support frame, a floating support, a floating positioning part, a floating positioning matching part, a floating fixing part and a primary positioning part; the first lifting device is fixedly connected to the main frame, and the output end of the first lifting device is connected to the first support frame; the floating support is movably connected to the first support frame; the floating positioning part and the floating positioning matching part are in positioning matching and are respectively arranged on the first support frame and the floating support; the initial positioning part is connected to the floating support; the secondary floating joint mechanism comprises an air tightness floating assembly and a joint assembly; the air-tight floating assembly is connected to the floating bracket; the joint assembly is connected to the airtight floating assembly. The automatic test device can realize full-automatic test, automatic positioning, safety, reliability and high efficiency, reduces labor cost and improves benefits.
[ description of the drawings ]
The invention will be further described with reference to the following examples with reference to the accompanying drawings.
Fig. 1 is a first perspective view of the automatic positioning device according to the present invention.
Fig. 2 is a second perspective view of the automatic positioning device of the present invention.
Fig. 3 is a first perspective view of the main frame of the present invention.
Fig. 4 is a second perspective view of the main frame of the present invention.
Fig. 5 is an assembly view of the limiting bracket, the limiting member, the sensor bracket and the first detecting device of the present invention.
Fig. 6 is an exploded view of the limiting bracket, the limiting member, the sensor bracket and the first detecting device according to the present invention.
Fig. 7 is a perspective view of the automatic positioning device of the present invention after concealing the main frame and the first lifting device.
Fig. 8 is an exploded view of the automatic positioning device of the present invention after concealing the main frame and the first lifting device.
Figure 9 is an exploded view of the first support bracket and floating mount of the present invention.
FIG. 10 is an exploded view of the adapter bracket, pilot and retrofit assembly of the present invention.
Fig. 11 is an assembly view of the air-tight floating assembly and bulkhead fitting of the present invention.
Fig. 12 is an assembly view of the airtight floating assembly and the pneumatic joint part of the present invention.
Figure 13 is an exploded view of the air-tight float assembly and bulkhead fitting of the present invention.
FIG. 14 is a perspective view of the inflatable fitting portion of the present invention.
Figure 15 is an exploded view of the inflatable fitting of the present invention.
Fig. 16 is a perspective view of a bulkhead fitting of the invention.
Fig. 17 is an exploded view of the bulkhead fitting of the invention.
Figure 18 is a perspective view of the hermetically inflated shell of the present invention.
Fig. 19 is a schematic view of a model one battery pack of the present invention.
Fig. 20 is a schematic view of a model two battery pack of the present invention.
Fig. 21 is a schematic diagram of the automatic positioning device and the insertion positioning of the battery pack of type one according to the present invention.
Fig. 22 is a schematic diagram of the automatic positioning device of the present invention and the insertion positioning of the battery pack of type two.
Description of reference numerals:
the main frame 1, a limit matching part 11, a limit hole 111, a limit bracket 12, a strip-shaped guide hole 121, a limit part 13, a handle 131, a spring plunger 132, a spherical groove 133, a guide pin 134, a sensor bracket 14, a first detection device 15, a first guide rail 16 and a first slide block 17;
a primary floating mechanism 2, a first lifting device 21, a first supporting frame 22,
the floating bracket 23, the bearing holder 231, the groove 2311, the first ball bearing 232, the slide plate 233, the adaptor holder 234,
the floating positioning portion 24, the first cylinder 241, the positioning pin 242,
a floating positioning fitting part 25, a fixing block 251, a vertical positioning hole 2511,
the floating fixing portion 26, the second cylinder 261,
a primary positioning portion 27, a side plate 271, a positioning member 272, a second detecting means 273, an in-position detecting lever 274, a spring 275, a third detecting means 276;
a two-stage floating joint mechanism 3 is arranged,
the air-tight floating assembly 31, a secondary floating support 311, a third air cylinder 312, a first moving plate 313, a push block 3131, a fourth air cylinder 314, a first floating connecting plate 315, a second ball bearing 3151, a second floating connecting plate 316, a first connecting column 3161, a third floating connecting plate 317, a second connecting column 3171, a third ball bearing 3172, a limit avoiding groove 3173, a joint connecting plate 318, a rectangular frame 3181, a fourth ball bearing 3182 and an accommodating cavity 3183,
the joint assembly 32 is provided with a joint,
a plug connector part 321, a plug mounting plate 3211, an end profiling guide block 3212, a guide through hole 32121, an outer end surface 32122, an inner end surface 32123, a plug 3213, a fifth cylinder 3214, a fourth detection device 3215,
the air-tight air-inflation joint part 322, the air-tight mounting plate 3221, the air-tight mounting plate 3222, the sixth air cylinder 3223, the air-tight air-inflation shell 3224, the first annular groove 32241, the second annular groove 32242, the third annular groove 32243, the air inlet 32244, the air outlet 32245, the air pipe joint 3225, the screw rod joint 3226, the sealing ring 3227, the magnetic member 3228, the nylon sleeve 3229, the air-tight fixing seat 32210, the through hole 322101, the through hole 322102, the explosion-proof nylon block 32220, the arc-shaped chamfer 322201, the seventh air cylinder 32230, the fixture block 32240 and the fifth detection device 32250;
the model changing assembly 4, a first switching slide plate 41, an eighth air cylinder 42, a second switching slide plate 43 and a ninth air cylinder 44;
the system comprises a battery pack 100 with the first type, a first explosion-proof valve 101, a quick charge high-pressure interface 102 and a first rear-drive high-pressure interface 103;
the battery pack 200 of the second type, a second explosion-proof valve 201, a third explosion-proof valve 202 and a second rear-drive high-pressure interface 203;
tooling 300 on the AGV trolley and side plate positioning pins 301.
[ detailed description ] embodiments
In the description of the present invention, it is to be understood that the description indicating the orientation or positional relationship is based on the orientation or positional relationship shown in the drawings only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the scope of the present invention.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The general concept of the invention is as follows:
the first-stage floating mechanism 2 and the second-stage floating joint mechanism 3 can be connected with a control system of a production line, so that automatic positioning is realized, the efficiency is improved, and the labor cost is reduced; and the floating design can reduce the influence of errors in the manufacturing and assembling processes on positioning, so that the positioning precision is higher.
Please refer to fig. 1 to 22.
An automatic positioning device for a battery pack airtightness test, comprising:
a main frame 1;
the first-stage floating mechanism 2 comprises a first lifting device 21, a first support frame 22, a floating support 23, a floating positioning part 24, a floating positioning matching part 25, a floating fixing part 26 and an initial positioning part 27; the first lifting device 21 is fixedly connected to the main frame 1, and the output end of the first lifting device is connected to the first support frame 22; the floating bracket 23 is movably connected to the first support frame 22; the floating positioning part 26 and the floating positioning matching part 25 are in positioning matching and are respectively arranged on the first support frame 22 and the floating support 23; the primary positioning portion 26 is connected to the floating bracket 23; in a specific embodiment, the first lifting device 21 may employ an actuator, such as an air cylinder.
A secondary floating joint mechanism 3 including an airtight floating assembly 31 and a joint assembly 32; the airtight floating assembly 31 is connected to the floating bracket 23; the joint assembly 32 is connected to the airtight floating assembly 31.
Further comprising:
the limit matching part 11 is provided with a limit hole 111 and is fixedly connected to the main frame 1;
the limiting bracket 12 is fixedly connected to the first supporting frame 22;
the limiting piece 13 is movably connected to the limiting bracket 12 and detachably inserted into the limiting hole 111; in a specific embodiment, the limiting member 13 may adopt a pin or a shaft, and for convenience of operation, a handle 131 may be further disposed on a side surface of the limiting member 13; in order to avoid the loosening of the limiting member 13, a spring plunger 132 may be further disposed in the limiting bracket 12, and a plurality of spherical grooves 133 may be axially disposed on the surface of the limiting member 13; when the stopper 13 is inserted into the stopper hole 111, the steel ball of the spring plunger 132 abuts against the spherical groove 133, so that the stopper 13 is abutted. Furthermore, a guide pin 134 may be disposed on a side surface of the limiting member 13, a strip-shaped guide hole 121 may be disposed on a side surface of the limiting bracket 12, and the guide pin 134 may be inserted into the strip-shaped guide hole 121 to guide the insertion and removal of the limiting member 13. In the embodiment, the upper and lower surfaces of the limiting member 13 are provided with the spherical grooves 133, and the two side surfaces are provided with the mounting holes of the guide pins 134 and the mounting holes of the handle 131, so that the assembly is convenient without distinguishing the left and right or the upper and lower surfaces of the limiting member 13.
The inductor bracket 14 is fixedly connected to the limiting bracket 12;
the first detecting device 15 is fixedly connected to the sensor holder 14, and is configured to detect whether the limiting member 13 is inserted into the limiting hole 111.
In specific implementation, when the automatic positioning device needs to be maintained, the limiting member 13 can be inserted into the limiting hole 111 to realize mechanical limiting, so that a safety protection effect is achieved, and the situation that the maintenance personnel are injured by falling and smashing due to the fact that the first lifting device 21 is out of control due to power failure, air failure and the like in the maintenance process is avoided. Meanwhile, the limiting piece 13 is inserted into the limiting hole 111, is sensed by the first detection device 15, and feeds back a signal to the control system, and the control system controls each driving device to stop working, so that people are prevented from being injured.
Further comprising:
the first guide rail 16 is vertically and fixedly connected to the main frame 1;
and the first sliding block 17 is fixedly connected to the first support frame 22 and is slidably connected to the first guide rail 16. The first guide rail 16 and the first slider 17 can guide the lifting of the first support frame 22.
The floating mount 23 includes:
the two bearing supports 231 are provided with grooves 2311 with one open side and are symmetrically and fixedly connected to the first support frame 22, and the side openings of the grooves 2311 are oppositely arranged;
a first ball bearing 232; wherein a plurality of said first ball bearings 232 are provided in each of said grooves 2311;
a sliding plate 233 which is disposed in the grooves 2311, is lapped on the first ball bearing 232, and is in clearance fit with the grooves 2311; the sliding plate 233 can roll on the first ball bearing 232 and can be blocked by the groove 2311 at the periphery, so that falling off is avoided, primary floating is realized, the influence of errors generated in the manufacturing and assembling processes on positioning can be reduced, and the positioning precision is improved.
And an adaptor bracket 234 fixedly coupled to the sliding plate 233.
The floating positioning portion 24 includes a first cylinder 241 and a positioning pin 242; the first cylinder 241 is fixedly connected to the first support frame 22, and a piston rod is arranged vertically downwards; the positioning pin 242 is vertically and fixedly connected to the piston rod of the first cylinder 241;
the floating positioning matching part 25 comprises a fixed block 251, and the fixed block 251 is provided with a vertical positioning hole 2511; the first air cylinder 241 drives the positioning pin 242 to be inserted into the vertical positioning hole 2511; in a specific embodiment, there are two first cylinders 241, two positioning pins 242, and two fixing blocks 251, and the purpose of disposing the floating positioning portion 24 and the floating positioning matching portion 25 is to: in the process that the first lifting device 21 drives the first support frame 22 to descend, and the primary positioning portion 27 and the battery pack tool are positioned, the floating support 23 needs to be limited firstly, so that the situation that the position of the primary positioning portion 27 deviates due to the movement of the floating support 23 before primary positioning is avoided, and when the primary positioning portion 27 is just positioned with the battery pack tool, the first air cylinder 241 drives the positioning pin 242 to be separated from the vertical positioning hole 2511, the floating support 23 is loosened, so that the floating support 23 can move, the deviation generated by self-adaptive manufacturing and assembling errors and the conveying of the battery pack to a preset position is avoided, and the positioning accuracy of primary positioning is improved. That is, in the descending process of the first support frame 22, when the primary positioning portion 27 is not yet positioned, the positioning pin 242 is required to be inserted into the vertical positioning hole 2511 for limiting, and at other times, the separation is required, so that the floating support 23 can be conveniently moved, and the manufacturing and assembling errors can be adapted.
The floating fixing part 26 includes at least two second cylinders 261, the two second cylinders 261 are fixedly connected to the first support frame 22, and the piston rod is vertically downward and fixedly connected to the adapter bracket 234. The floating fixing part 26 functions as: after the initial positioning is completed, the floating support 23 needs to be fixed to avoid moving to influence subsequent positioning, and therefore, the piston rod of the second cylinder 261 extends downwards to pull the floating support 23 to press the first ball bearing 232.
The primary positioning portion 27 includes:
two side plates 271 are symmetrically and fixedly connected to the switching support 234;
two positioning members 272, which are fixedly connected to the side plates 271 in a one-to-one correspondence manner, and are used for positioning and matching with matching members on the battery pack assembly; in specific implementation, the positioning element 272 may be a hole or a pin, and may be selected and assembled according to a mating element on the battery pack fixture. In the embodiment shown in fig. 7, the positioning member 272 is provided with a hole for positioning and matching with a pin on the battery pack fixture.
Two second detecting devices 273, one for one, are fixedly connected to the side plates 271 and are used for detecting the relative positions between the positioning members 272 and the mating members; that is, when it is detected that the positioning member 272 and the mating member are just positioned, the first cylinder 241 drives the positioning pin 242 to disengage from the fixing block 251 to facilitate the initial positioning.
Two in-place detection rods 274 are vertically movably connected to the side plates 271 in a one-to-one correspondence manner;
two springs 275, one to one, are sleeved on the in-place detection rod 274, and one end of each spring abuts against the side plate 271 and the other end of each spring abuts against the in-place detection rod 274;
the third detecting means 276 are two and fixedly connected to the side plate 271 in a one-to-one correspondence, and are configured to detect whether the in-position detecting lever 274 reaches a predetermined position. I.e., to detect whether the locating member 272 and mating member are located in place.
The airtight floating assembly 31 includes:
a secondary floating mount 311 connected to the floating mount 23;
a third cylinder 312 fixedly connected to the secondary floating support 311, and a piston rod is horizontally arranged;
a first moving plate 313, which is provided with a push block 3131 protruding downward, is movably connected to the secondary floating support 311 along the horizontal direction, and is fixedly connected to the piston rod of the third cylinder 312;
a fourth cylinder 314 fixedly connected to the first moving plate 313, and a piston rod of the fourth cylinder is arranged in a vertical direction;
a first floating connection plate 315, having a second ball bearing 3151 at the center downward, and fixedly connected to the piston rod of the fourth cylinder 314;
the middle points of the front, rear, left and right sides of the second floating connecting plate 316 are respectively provided with a first connecting column 3161 in a downward convex manner;
the third floating connecting plate 317 is provided with four corners which are respectively provided with a second connecting column 3171 in an upward convex manner, the bottoms of the four corners and the bottom of the center are respectively provided with a third ball bearing 3172 in a downward manner, and the middle points of the front, rear, left and right sides are respectively provided with a limit avoiding groove 3173; the limit avoiding groove 3173 is in clearance fit with the first connecting column 3161, so that the first connecting column 3161 can move back and forth, left and right;
the top of the joint connecting plate 318 is provided with a rectangular frame 3181; four inner side surfaces of the rectangular frame 3181 are respectively provided with a fourth ball bearing 3182; each fourth ball bearing 3182 forms an accommodating cavity 3183; the accommodating cavity 3183 and the push block 3131 are in clearance fit;
wherein:
the push block 3131 is inserted into the accommodating cavity 3183;
the second floating connecting plate 316 is inserted upside down on the third floating connecting plate 317; the second floating connection plate 316 and the joint connection plate 318 are hung by the third floating connection plate 317; second ball bearing 3151 and third ball bearing 3172 make second floating connecting plate 316 move around, and then drive joint connecting plate 318 and joint assembly 32 and move, further self-adaptation manufacturing, assembly and the position error of battery package, realize accurate positioning, improve positioning accuracy.
The first connecting columns 315 are inserted into the limit avoiding grooves 3173 in a one-to-one correspondence manner and then fixedly connected to the joint connecting plates 318;
each second connecting column 3171 is also fixedly connected to the first floating connecting plate 315;
the second ball bearing 3151 is lapped on the second floating connection plate 316;
each of the third ball bearings 3172 is lapped on the joint connecting plate 318.
The working principle of the airtight floating assembly 31: the piston rod of the fourth cylinder 314 extends out to adjust the height of the joint assembly 32 to a preset position, then the piston rod of the third cylinder 312 extends out to push the first moving plate 313 to move to drive the joint assembly 32 and the preset position of the battery pack to be inserted, and in the inserting process, the second floating connecting plate 316 can move in the front-back, left-right directions, self-adaptive errors are achieved, automatic centering is achieved, the purpose of accurate positioning is achieved, and positioning accuracy is improved.
The connector assembly 32 includes a bulkhead connector portion 321 and an inflation connector portion 322; the plug portion connector portion 321 is used for plugging some air holes on the battery pack, and the inflation connector portion 322 is used for inflating air from the unplugged air holes, so that an air tightness test is realized. In one embodiment, the number of the gas-filled connector portions 322 and the number of the plug connector portions 321 may be selected according to the number of the gas holes of the battery pack, and on the other hand, the number of the gas holes to be filled during the test may be selected according to the requirement, such as one, two or other numbers.
The number of the air-tight floating assemblies 31 is at least two, and the sum of the number of the plug joint parts 321 and the number of the inflation joint parts 322 is equal to the number of the air-tight floating assemblies 31;
the plug head joint parts 321 correspond to and are fixedly connected with the joint connecting plates 318 of the airtight floating assembly 1 in an equal amount one by one;
the one-to-one correspondence of the air-packing joint portions 322 is fixedly connected to the joint connection plates 318 of the remaining air-tight floating assembly 31.
The plug joint portion 321 includes: the plug comprises a plug mounting plate 3211, an end profiling guide block 3212, a plug 3213, a fifth cylinder 3214 and a fourth detection device 3215;
the plug mounting plate 3211 is fixedly connected to the corresponding joint connecting plate 318;
the fifth cylinder 3214 is fixedly connected to the plug mounting plate 3211, and a piston rod is horizontally and fixedly connected to the plug 3213; the piston rods of the fifth cylinder 3214 and the third cylinder 312 are arranged in the same direction;
the end profile modeling guide block 3212 is provided with a guide through hole 32121, and an outer end surface 32122 is a profiling surface; an inner end surface 32123 of the end profiling guide block 3212 is fixedly connected to the plug mounting plate 3211, and the plug 3213 penetrates into the guide through hole 32121 and is in clearance fit with the guide through hole;
the fourth detecting device 3215 is fixedly connected to the plug mounting plate 3211, and is configured to detect whether the outer end surface 32122 of the end profiling guide block 3212 and the battery pack are positioned in place;
the working principle of the plug head joint part 321 is as follows: after the piston rod of the third cylinder 312 extends in place, the piston rod of the fifth cylinder 3214 extends to drive the plug 3213 to plug the air hole of the battery pack, and after the fourth detection device 3215 detects in place, a signal is fed back to perform the next operation.
The inflation joint portion 322 includes: an inflation mounting plate 3221, an air-tight mounting plate 3222, a sixth air cylinder 3223, an air-tight inflation shell 3224, an air pipe joint 3225, a screw rod joint 3226, a sealing ring 3227, a magnetic member 3228, a nylon sleeve 3229, an air-tight fixed seat 32210, an explosion-proof nylon block 32220, a seventh air cylinder 32230, a clamping block 32240 and a fifth detection device 32250;
the inflatable mounting plate 3221 is fixedly connected with the corresponding joint connecting plate 318;
the sixth cylinder 3223 is fixedly connected to the inflating mounting plate 3221, and the piston rod is horizontally and fixedly connected to the air-tight mounting plate 3222 and the air-tight inflating casing 3224; the piston rods of the sixth cylinder 3223 and the third cylinder 312 are arranged in the same direction;
a first annular groove 32241 is formed in the outer side surface of the airtight inflatable shell 3224, and a second annular groove 32242 and a third annular groove 32243 are formed in the right end surface; the third annular groove 32243 is deeper than the second annular groove 32242; an air inlet 32244 is arranged on the side surface of the air-tight inflatable shell 3224; an air outlet 32245 is formed in the bottom surface of the third annular groove 32243; the air outlet 32245 is communicated with the air inlet 32244;
the nylon sleeve 3229 is sleeved on the first annular groove 32241, and the outer surface of the nylon sleeve 3229 protrudes out of the outer side surface of the airtight inflatable shell 3224;
the air pipe joint 3225 is connected with the air inlet 32244 in an air-tight manner; the air is input from the air pipe joint 3225, enters the air inlet 32244, then comes out from the air outlet 32245, and then enters the inflation hole of the battery pack to inflate the battery pack.
At least one sealing ring 3227 is clamped in the second annular groove 32242 and protrudes out of the right end face of the airtight inflating shell 3224; the sealing ring 3227 and the nylon sleeve 3229 both have an air-tight effect, which improves the air-tightness during inflation.
The screw joint 3226 is fixedly connected to the bottom surface of the third annular groove 32243;
the magnetic element 3228 is fixedly connected to the right end of the screw joint 3226; in specific implementation, the magnetic element 3228 may adopt a magnet or magnetic steel and other parts, and is configured to suck out a switch of the airtight explosion-proof valve that seals the air hole on the battery pack, so that the explosion-proof valve is in an open state, and thus, the battery pack may be inflated.
The air-tight fixed seat 32210 is provided with a through hole 322101 along the horizontal direction, and a vertical through hole 322102 at the right end; the airtight fixed seat 32210 is fixedly connected to the airtight mounting plate 3222, the airtight inflation shell 3224 is inserted into the through hole 322101, and the inner side wall of the through hole 322101 airtightly presses the nylon sleeve 3229;
two explosion-proof nylon blocks 32220 are provided, and an arc-shaped chamfer 322201 is provided; the two anti-explosion nylon blocks 3220 are symmetrically and fixedly connected to the right end face of the air-tight fixing seat 32210, and the minimum diameter between the two arc-shaped chamfers 322201 is greater than or equal to the diameter of the through hole 322101, so that an avoidance effect is achieved; meanwhile, the explosion-proof nylon block 32220 may play a role in buffering when the opposite insertion is positioned.
Two seventh cylinders 32230 and two fixture blocks 32240 are arranged respectively; the seventh cylinders 32230 are symmetrically oppositely and fixedly connected to two ends of the through hole 322102; the clamping blocks 32240 are fixedly connected to the piston rods of the seventh air cylinder 32230 in a one-to-one correspondence, and are inserted into the through holes 322102, and are in clearance fit with the through holes 322102; the clamping block 32240 is used for positioning and matching with a corresponding clamping groove on the battery pack, so as to further fix the inflation connector portion 322 and the battery pack, and prevent the inflation connector portion and the battery pack from falling off during inflation.
The fifth detecting device 32250 is fixedly connected to the airtight fixing seat 32210, and is configured to detect whether the explosion-proof nylon block 32220 and the battery pack are positioned in place, and only after the fifth detecting device 32250 detects that the explosion-proof nylon block and the battery pack are positioned in place, a signal is fed back to the control system, so that a next operation can be performed.
The battery pack testing device further comprises a model changing assembly 4, the model changing assembly is used for selecting corresponding plug connector parts 321 and corresponding air inflation connector parts 322 according to the models of the battery packs so as to meet different use requirements of air hole positions of the battery packs of different models, and the number and the positions of the plug connector parts 321 and the air inflation connector parts 322 can be preset according to the air hole positions and the number of the battery packs of different models to be tested; in the embodiment shown in the drawings, the remodelling assembly 4 comprises, for two different models of test:
a first switching slide plate 41 movably connected to the floating bracket 23 along a horizontal direction, wherein the movable direction is perpendicular to the piston rod of the third cylinder 312;
an eighth cylinder 42 fixedly connected to the first switching slide plate 41 and a piston rod fixedly connected to the floating bracket 23, or vice versa, i.e. the eighth cylinder 42 may be fixed to the floating bracket 23 and the piston rod is fixed to the first switching slide plate 41, similarly to the connection manner of the ninth cylinder 44; the piston rods of the eighth air cylinder 42 and the third air cylinder 312 are vertical;
a second switching slide plate 43 movably connected to the floating bracket 23 along a horizontal direction, wherein the moving direction is perpendicular to the piston rod of the third cylinder 312;
a ninth cylinder 44 fixedly connected to the second switching slider 43 and having a piston rod fixedly connected to the floating bracket 23; the piston rods of the ninth cylinder 44 and the third cylinder 312 are vertical;
wherein, the number of the airtight floating assemblies 31 is six; three plug connector portions 321 are provided; three of the air inflation joint portions 322;
one of the airtight floating assemblies 31 is fixedly connected to the floating bracket 23, is located between the first switching slide plate 41 and the second switching slide plate 43, and is fixedly connected with an inflation joint portion 322;
the three airtight floating assemblies 31 are fixedly connected to the first switching slide plate 41 at intervals of a predetermined interval, and are fixedly connected to the plug connector portions 321 in a one-to-one correspondence;
the remaining two airtight floating assemblies 31 are fixedly connected to the second switching slider 42 at predetermined intervals and are fixedly connected to the remaining inflation joint portions 322 in a one-to-one correspondence;
the air-tight floating assemblies 31 are arranged in parallel and in the same direction.
A specific model changing principle: as shown in fig. 8, from left to right, the two left-most bulkhead connector portions 321 and the first right-most inflatable connector portion 322 are grouped together, corresponding to testing of the battery pack 100 of type one. The third left bulkhead connector portion 321 and the second and third right inflation connector portions 322 are grouped together to test the second model two battery pack 200.
When the battery pack 100 of the first model needs to be tested, the piston rods of the eighth cylinder 42 and the ninth cylinder 44 are retracted, and the distance between the plug connector part 321 and the gas-filled connector part 322 of the battery pack 100 of the first test model is matched with the distance between the opposite insertion positions corresponding to the battery pack 100 of the first test model; during testing, the piston rods of the third cylinders 312 of the three airtight floating assemblies 31 corresponding to the battery pack 100 of the first model extend out, the piston rods of the third cylinders 312 of the three airtight floating assemblies 31 corresponding to the battery pack 200 of the second model retract, and the unused plug joint parts 321 and the unused inflation joint parts 322 retract to play a role in avoiding and avoid interference; of course, in other embodiments, there may be other ways to set the expansion and contraction procedures of the piston rods of the eighth cylinder 42 and the ninth cylinder 44 according to the preset position.
As shown in fig. 19 and 21, the battery pack 100 of type one includes a first explosion-proof valve 101, a quick charge high-voltage interface 102, and a first rear-drive high-voltage interface 103; the specific opposite insertion mode is as follows: the first explosion-proof valve 101 and the first inflation connector part 322 on the right are inserted into each other, and at the moment, the magnetic member 3228 sucks out the switch of the first explosion-proof valve 101, so that the first explosion-proof valve is in an open state; the quick charging high-pressure interface 102 and the left second plug joint part 321 are plugged in opposite directions and are blocked; the first rear-drive high-pressure interface 103 is plugged with the left first plug joint part 321;
when the battery pack 200 of the second type needs to be tested, the piston rods of the eighth air cylinder 42 and the ninth air cylinder 44 are extended out; during testing, the piston rods of the third cylinders 312 of the three airtight floating assemblies 31 corresponding to the battery pack 200 of the second model extend out, while the piston rods of the third cylinders 312 of the three airtight floating assemblies 31 corresponding to the battery pack 100 of the first model retract, so that the unused plug joint parts 321 and the unused inflation joint parts 322 retract to play a role in avoiding interference.
As shown in fig. 20 and 22, the battery pack 200 of model two includes a second explosion-proof valve 201, a third explosion-proof valve 202, and a second rear-drive high-pressure interface 203; the specific plug-in mode is as follows: the second explosion-proof valve 201 is inserted into the second inflation joint part 322 on the right, and at this time, the magnetic element 3228 sucks out the switch of the second explosion-proof valve 201, so that the second explosion-proof valve is in an open state; the third explosion prevention valve 202 and the right third inflation joint part 322 are inserted in an opposite manner, and at the moment, the magnetic piece 3228 sucks out the switch of the third explosion prevention valve 202 and is in an open state; the second rear-drive high-pressure connector 203 and the left third plug connector part 321 are plugged.
The use method comprises the following steps:
the first elevating device 21 employs an air cylinder.
The cylinders and the detection device of the invention are respectively in communication connection with a control system of a production line, such as a PLC, so as to realize automatic control.
And presetting a working program.
Calling a corresponding program in advance according to the type of the battery pack, and controlling the eighth air cylinder 42 and the ninth air cylinder 44 to work by the PLC so as to adjust the corresponding plug joint part 321 and the corresponding inflation joint part 322 to preset positions; a code scanning device can also be arranged to scan the bar code of the battery pack to identify the model so as to call the corresponding working program, and the model can be selected according to the requirement.
Prior to testing, the battery packs are transported by an AGV cart (not shown) to predetermined test positions. A tooling plate 300 is preset on the AGV trolley, a side plate positioning pin 301 is arranged on the tooling plate 300 and used for stopping the AGV trolley at a preset position, the side plate positioning pin 301 is inserted into a hole of a positioning piece 272 to realize initial positioning, namely the position of the AGV trolley is unified, and the positioning can be preset according to actual requirements; of course, in other embodiments, the battery pack may be delivered in other ways.
During testing, the PLC controls the piston rod of the first lifting device 21 to extend downward, and controls the first cylinder 241 to drive the positioning pin 242 to be inserted into the vertical positioning hole 2511;
when a side plate positioning pin 301 above a tooling plate 300 on an AGV trolley is just inserted into a hole of the positioning piece 272 and is detected by the second detection device 273, a signal is fed back to the PLC, and the PLC controls the first air cylinder 241 to drive the positioning pin 242 to reset and separate from the vertical positioning hole 2511;
the piston rod of the first lifting device 21 continues to descend for preliminary positioning; when the third detection device 276 detects that the positioning is in place, feeding back a signal to the PLC; the PLC controls a piston rod of the second air cylinder 261 to extend downwards and press the sliding plate 233 tightly, and initial positioning is completed;
then, the PLC controls the piston rod of the fourth cylinder 314 to extend, adjusts the height of the joint assembly 32 to a predetermined position,
then the PLC controls a piston rod of the third cylinder 312 to extend out, pushes the first moving plate 313 to move, and drives the joint assembly 32 and a preset position of the battery pack to carry out opposite insertion;
then, the PLC controls a piston rod of the fifth cylinder 3214 to extend out, so as to drive the plug 3213 to plug the air hole of the battery pack, and after the fourth detection device 3215 detects the battery pack in place, a signal is fed back;
on the other hand, the PLC then controls the piston rod of the sixth cylinder 3223 to extend out to drive the airtight inflation shell 3224, the explosion-proof nylon block 32220 and other components to be in positioning and butt joint with the inflation hole of the battery pack, and after the positioning is detected to be in place by the fifth detection device 32250, a signal is fed back to the PLC, the PLC then controls the piston rods of the two seventh cylinders 32230 to extend out to drive the two clamping blocks 32240 to synchronously move in opposite directions and be inserted into a predetermined positioning groove on the battery pack, and after the positioning is in place, a signal is fed back to the PLC by a travel switch arranged on the seventh cylinder 32230, and at the moment, the magnetic element 3228 sucks out a switch of an explosion-proof valve of the battery pack, is in an open state, and can perform airtightness test on the inflation of the battery pack.
After the test is finished, the PLC controls each air cylinder to reset.
When needing to overhaul, inject spacing piece 13 into spacing hole 111 in, first detection device 15 detects the back, and feedback signal gives PLC, and PLC controls individual cylinder stop work, and PLC still can switch manual operation mode, can predetermine corresponding control button, and artifical entering equipment overhauls, can play personnel's safety.
Although specific embodiments of the invention have been described above, it will be understood by those skilled in the art that the specific embodiments described are illustrative only and are not limiting upon the scope of the invention, and that equivalent modifications and variations can be made by those skilled in the art without departing from the spirit of the invention, which is to be limited only by the appended claims.
Claims (10)
1. The utility model provides an automatic positioning device of battery package gas tightness test which characterized in that: the method comprises the following steps:
a main frame;
the first-stage floating mechanism comprises a first lifting device, a first support frame, a floating support, a floating positioning part, a floating positioning matching part, a floating fixing part and a primary positioning part; the first lifting device is fixedly connected to the main frame, and the output end of the first lifting device is connected to the first support frame; the floating support is movably connected to the first support frame; the floating positioning part and the floating positioning matching part are in positioning matching and are respectively arranged on the first support frame and the floating support; the initial positioning part is connected to the floating support;
the secondary floating joint mechanism comprises an air tightness floating assembly and a joint assembly; the air-tight floating assembly is connected to the floating bracket; the joint assembly is connected to the airtight floating assembly.
2. The automatic positioning device for the airtightness test of the battery pack according to claim 1, wherein: further comprising:
the limiting matching part is provided with a limiting hole and is fixedly connected to the main frame;
the limiting bracket is fixedly connected to the first supporting frame;
the limiting piece is movably connected to the limiting bracket and detachably inserted into the limiting hole;
the inductor bracket is fixedly connected to the limiting bracket;
the first detection device is fixedly connected to the inductor bracket and used for detecting whether the limiting part is inserted into the limiting hole or not.
3. The automatic positioning device for the tightness test of battery packs according to claim 1 or 2, characterized in that: further comprising:
the first guide rail is vertically and fixedly connected to the main frame;
and the first sliding block is fixedly connected to the first support frame and is connected to the first guide rail in a sliding manner.
4. The automatic positioning device for the tightness test of battery packs according to claim 1 or 2, characterized in that: the floating mount includes:
the two bearing supports are provided with grooves with one side surfaces open, and the two bearing supports are symmetrically and fixedly connected to the first support frame, and the side surfaces of the grooves are oppositely arranged;
a first ball bearing; wherein each groove is internally provided with a plurality of first ball bearings;
the sliding plates are arranged in the two grooves, are lapped on the first ball bearings and are in clearance fit with the grooves;
and the switching support is fixedly connected to the sliding plate.
5. The automatic positioning device for the airtightness test of the battery pack according to claim 4, wherein: the floating positioning part comprises a first cylinder and a positioning pin; the first air cylinder is fixedly connected to the first support frame, and a piston rod is arranged vertically downwards; the positioning pin is vertically and fixedly connected to a piston rod of the first air cylinder;
the floating positioning matching part comprises a fixed block, and the fixed block is provided with a vertical positioning hole; the first cylinder drives the positioning pin to be inserted into the vertical positioning hole;
the floating fixing part comprises at least two second cylinders, the two second cylinders are fixedly connected to the first support frame, and the piston rod is vertically downwards fixedly connected to the switching support.
6. The automatic positioning device for the airtightness test of the battery pack according to claim 4, wherein: the initial positioning portion includes:
the two side plates are symmetrically and fixedly connected to the switching support;
the two positioning pieces are fixedly connected to the side plates in a one-to-one correspondence mode and are used for positioning and matching with the matching pieces on the battery pack tool;
the second detection devices are fixedly connected to the side plates in a one-to-one correspondence manner and are used for detecting the relative positions between the positioning pieces and the matching pieces;
the two in-place detection rods are vertically and movably connected to the side plates in a one-to-one correspondence manner;
the two springs are sleeved on the in-place detection rods in a one-to-one correspondence mode, one end of each spring abuts against the side plate, and the other end of each spring abuts against the in-place detection rod;
and the two third detection devices are fixedly connected to the side plates in a one-to-one correspondence manner and are used for detecting whether the in-place detection rod reaches a preset position.
7. The automatic positioning device for the airtightness test of the battery pack according to claim 1, wherein: the airtight floating assembly includes:
the secondary floating support is connected to the floating support;
the third cylinder is fixedly connected to the secondary floating support, and a piston rod is horizontally arranged;
the first moving plate is provided with a pushing block in a downward protruding mode, is movably connected to the secondary floating support in the horizontal direction and is fixedly connected to a piston rod of the third air cylinder;
the fourth cylinder is fixedly connected to the first moving plate, and a piston rod is arranged in a vertical direction;
the center of the first floating connecting plate is downwards provided with a second ball bearing and is fixedly connected with a piston rod of the fourth cylinder;
the middle points of the front, rear, left and right sides of the second floating connecting plate are respectively provided with a first connecting column in a downward convex manner;
the four corners of the third floating connecting plate are respectively provided with a second connecting column in an upward convex manner, the bottoms of the four corners and the bottom of the center are respectively provided with a third ball bearing downwards, and the middle points of the front, rear, left and right four sides are respectively provided with a limiting and avoiding groove; the limiting avoiding groove is in clearance fit with the first connecting column;
the top of the joint connecting plate is provided with a rectangular frame; four inner side surfaces of the rectangular frame are respectively provided with a fourth ball bearing; each fourth ball bearing forms an accommodating cavity; the accommodating cavity is in clearance fit with the push block;
wherein:
the push block is inserted into the accommodating cavity;
the second floating connecting plate is inserted on the third floating connecting plate in an inverted mode;
the first connecting columns are inserted into the limiting avoidance grooves in a one-to-one corresponding mode and then fixedly connected to the joint connecting plates;
each second connecting column is also fixedly connected to the first floating connecting plate;
the second ball bearing is lapped on the second floating connecting plate;
each of the third ball bearings is lapped on the joint connection plate.
8. The automatic positioning device for the airtightness test of the battery pack according to claim 7, wherein: the joint assembly comprises a plug joint part and an inflation joint part;
the number of the plug joint parts and the number of the inflation joint parts are equal to the number of the air-tightness floating assemblies;
the plug head joint parts are in one-to-one correspondence and are fixedly connected with joint connecting plates of the air-tight floating assembly in equal quantity;
and the inflation joint parts are in one-to-one correspondence and are fixedly connected with the joint connecting plates of the rest air-tightness floating assembly.
9. The automatic positioning device for the airtightness test of the battery pack according to claim 8, wherein: the end cap joint portion includes: the plug mounting plate, the end profiling guide block, the plug, the fifth cylinder and the fourth detection device;
the plug mounting plate is fixedly connected with the corresponding joint connecting plate;
the fifth cylinder is fixedly connected to the plug mounting plate, and the piston rod is horizontally and fixedly connected to the plug; piston rods of the fifth cylinder and the third cylinder are arranged in the same direction;
the end profiling guide block is provided with a guide through hole, and the outer end face of the end profiling guide block is a profiling face; the inner end face of the end profiling guide block is fixedly connected to the plug mounting plate, and the plug penetrates into the guide through hole and is in clearance fit with the guide through hole;
the fourth detection device is fixedly connected to the plug mounting plate and used for detecting whether the outer end face of the end profiling guide block and the battery pack are positioned in place or not;
the inflation joint portion includes: the air-tight air-filling device comprises an air-filling mounting plate, an air-tight mounting plate, a sixth air cylinder, an air-tight air-filling shell, an air pipe joint, a screw joint, a sealing ring, a magnetic part, a nylon sleeve, an air-tight fixed seat, an explosion-proof nylon block, a seventh air cylinder, a clamping block and a fifth detection device;
the inflatable mounting plate is fixedly connected with the corresponding joint connecting plate;
the sixth air cylinder is fixedly connected to the air inflation mounting plate, and the piston rod is horizontally and fixedly connected to the air tightness mounting plate and the air tightness air inflation shell; piston rods of the sixth cylinder and the third cylinder are arranged in the same direction;
the outer side surface of the airtight inflating shell is provided with a first annular groove, and the right end surface of the airtight inflating shell is provided with a second annular groove and a third annular groove; the third annular groove is deeper than the second annular groove; the side surface of the air-tight inflating shell is provided with an air inlet; the bottom surface of the third annular groove is provided with an air outlet; the air outlet is communicated with the air inlet;
the nylon sleeve is sleeved on the first annular groove, and the outer surface of the nylon sleeve protrudes out of the outer side surface of the airtight inflating shell;
the air pipe joint is connected with the air inlet in an air-tight manner;
at least one sealing ring is clamped in the second annular groove and protrudes out of the right end face of the airtight inflating shell;
the screw rod joint is fixedly connected to the bottom surface of the third annular groove;
the magnetic part is fixedly connected to the right end of the screw rod joint;
the air tightness fixing seat is provided with a through hole along the horizontal direction, and a vertical through hole is formed in the right end of the air tightness fixing seat; the air tightness fixing seat is fixedly connected to the air tightness mounting plate, the air tightness inflating shell is inserted into the through hole, and the nylon sleeve is tightly pressed by the inner side wall of the through hole in an air tightness manner;
the number of the explosion-proof nylon blocks is two, and an arc-shaped chamfer is arranged on the two explosion-proof nylon blocks; the two anti-explosion nylon blocks are symmetrically and fixedly connected to the right end face of the air-tightness fixing seat, and the minimum diameter position between the two arc-shaped chamfers is larger than or equal to the diameter of the through hole;
the number of the seventh cylinder and the number of the fixture blocks are two; the seventh air cylinders are symmetrically oppositely and fixedly connected to two ends of the through hole; the fixture blocks are fixedly connected to the piston rods of the seventh cylinder in a one-to-one correspondence manner, inserted into the through holes and in clearance fit with the through holes;
and the fifth detection device is fixedly connected with the air tightness fixing seat and used for detecting whether the explosion-proof nylon block and the battery pack are positioned in place or not.
10. The automatic positioning device for the airtightness test of the battery pack according to claim 8, wherein: still include the remodeling subassembly, the remodeling subassembly includes:
the first switching sliding plate is movably connected to the floating support along the horizontal direction, and the moving direction of the first switching sliding plate is vertical to the piston rod of the third cylinder;
the eighth cylinder is fixedly connected to the first switching sliding plate, and a piston rod is fixedly connected to the floating support; piston rods of the eighth cylinder and the third cylinder are vertical;
the second switching sliding plate is movably connected to the floating support along the horizontal direction, and the moving direction of the second switching sliding plate is vertical to the piston rod of the third air cylinder;
the ninth cylinder is fixedly connected to the second switching sliding plate, and a piston rod is fixedly connected to the floating support; piston rods of the ninth cylinder and the third cylinder are vertical;
wherein, the number of the airtight floating components is six; three plug joint parts are provided; three inflation joint parts are provided;
one air-tight floating assembly is fixedly connected to the floating support, is positioned between the first switching sliding plate and the second switching sliding plate and is fixedly connected with an air inflation joint part;
the three air tightness floating assemblies are fixedly connected to the first switching sliding plate at intervals according to a preset interval and are fixedly connected with the plug joint parts in a one-to-one correspondence manner;
the rest two air tightness floating assemblies are fixedly connected to the second switching sliding plate at intervals according to a preset interval and are fixedly connected with the rest air inflation joint parts in a one-to-one correspondence manner;
the air-tight floating assemblies are arranged in parallel and in the same direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210315660.3A CN114838874A (en) | 2022-03-29 | 2022-03-29 | Automatic positioning device for air tightness test of battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210315660.3A CN114838874A (en) | 2022-03-29 | 2022-03-29 | Automatic positioning device for air tightness test of battery pack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114838874A true CN114838874A (en) | 2022-08-02 |
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| CN202210315660.3A Pending CN114838874A (en) | 2022-03-29 | 2022-03-29 | Automatic positioning device for air tightness test of battery pack |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115411447A (en) * | 2022-09-23 | 2022-11-29 | 上海思客琦智能装备科技股份有限公司 | Novel automatic positioning and inflating method for explosion-proof valve of PACK box body of power battery |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115411447A (en) * | 2022-09-23 | 2022-11-29 | 上海思客琦智能装备科技股份有限公司 | Novel automatic positioning and inflating method for explosion-proof valve of PACK box body of power battery |
| CN115411447B (en) * | 2022-09-23 | 2024-06-14 | 上海思客琦智能装备科技股份有限公司 | Automatic positioning and inflation realization method for novel power battery PACK box explosion-proof valve |
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