Clamp and battery testing machine with same
Technical Field
The utility model relates to a lithium battery testing machine for an electric automobile, in particular to a clamp for clamping a battery tab in a lithium battery detecting machine for the electric automobile and a battery testing machine with the clamp.
Background
With the development of social economy, the living standard of people is improved, automobiles are more and more popular to go into thousands of households, so that the conservation quantity of the automobiles is improved year by year, and the problems of difficult parking and environmental pollution are further highlighted.
The processing process of the lithium battery generally comprises homogenizing, coating, rolling, slitting, assembling and formation, and in the process steps, the formation process is an extremely important process and mainly used for activating the lithium battery and detecting the capacity, so that the quality of the formation process directly determines the product quality of the lithium battery. Specifically, the process of detecting the capacity of the lithium battery is to place the battery into a battery testing machine for charge and discharge tests, so that a clamp for clamping a battery tab in the testing machine is particularly important, the clamping stability of the clamp on the tab is directly related to the battery testing effect, and the assembly convenience of the clamp and the tab is directly related to the working efficiency of the testing machine. However, the conventional battery tester clamp is generally inconvenient to assemble because the positive and negative electrode conducting strips are connected with the positive and negative electrode lugs of the battery, and the stable connection of each conducting strip and each lug cannot be ensured.
Therefore, the design of the clamp of the battery tester with stable clamping force and the battery tester with the clamp are significant.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model aims to clamp the pole lugs of the battery by matching two probe assemblies with one pressure plate assembly, so that each probe assembly is connected with one pole lug, and the aim of stably contacting the pole lugs by the probe assemblies is fulfilled.
The utility model is realized by adopting the following technical scheme: a clamp is used for clamping a tab of a battery to be tested on a battery testing machine, and comprises: a pressure plate connecting rod which is transversely arranged; each pressing plate component comprises a supporting plate arranged on the pressing plate connecting rod, two copper sheets respectively arranged on two opposite sides of the supporting plate, and two voltage terminals respectively connected with the two copper sheets; the two probe connecting rods are transversely arranged in parallel with the pressure plate connecting rod and are respectively positioned on the upper side and the lower side of the pressure plate connecting rod; the probe components are respectively arranged on the two probe connecting rods, each probe component comprises an installation seat fixed on the probe connecting rod, a clamping piece arranged on the installation seat, the clamping piece is opposite to the copper sheet, and a current terminal electrically connected with the clamping piece; when the pressing plate connecting rods and the two probe connecting rods are displaced relatively, the pressing plate assembly and the probe assembly are driven to be displaced relatively until one copper sheet and the corresponding clamping piece clamp the lug of the battery to be tested.
Furthermore, each supporting plate is provided with a horizontal part vertically arranged on the pressing plate connecting rod and a vertical part vertically connected with the end surface of the horizontal part, two copper sheets are respectively arranged on the side surface of the vertical part, an insulating sleeve is arranged on the front end surface of the vertical part, and the copper sheets are attached to the inner side surface of the insulating sleeve.
Furthermore, the pressing plate assembly further comprises a fixing block, the fixing block is L-shaped, the horizontal surface of the fixing block is locked on the surface of the pressing plate connecting rod, and the vertical surface of the fixing block is locked on the horizontal portion of the supporting plate.
Furthermore, each clamping piece is provided with three metal plates which are tightly attached and three clamping plates which are attached to the surface of the metal plate in a row, and the three clamping plates are opposite to the copper sheet, so that the copper sheet and the metal plates clamp the lug of the battery to be tested.
Further, the mounting seat is provided with a main body part, the main body part is locked on the probe connecting rod, the main body part is provided with a first side surface and a second side surface which are opposite, the first side surface is right opposite to the supporting plate, the first side surface protrudes outwards to form a protruding part, and the protruding part supports three metal plates.
Furthermore, the second side surface is concave inwards to form an accommodating groove, the accommodating groove accommodates a back lock metal plate, and a plurality of bolts penetrate through the three metal plates, the mounting seat and the back lock metal plate to lock the metal plates, the mounting seat and the back lock metal plate together.
Furthermore, two adjustment mechanism centre gripping respectively clamp plate connecting rod and two the both ends of probe connecting rod drive clamp plate connecting rod and two relative displacement about the probe connecting rod, each adjustment mechanism is including being two connecting plates of vertical setting, one of them the connecting plate card is held the clamp plate connecting rod, another the connecting plate card is held two the probe connecting rod, two horizontal plates connect two respectively the connecting plate, two pulleys are installed respectively in two the below of horizontal plate, a drive plate, the drive plate have a rectangle portion with a trapezoidal portion that the rectangle portion extends the formation, at least a cylinder is connected to the rectangle portion, borrow by the drive power of cylinder is close to or keeps away from the pulley removes, the two hypotenuses of trapezoidal portion paste respectively connect two the pulley.
Furthermore, the adjusting mechanism further comprises two air cylinders and a driving beam, two ends of the driving beam are respectively connected with the two air cylinders, the driving plate is connected between the two air cylinders, and the air cylinders are used for transmitting the air pressure to the driving plate.
Further, a plurality of fans are arranged in a row right above the probe assembly.
The other technical scheme of the utility model is as follows:
a battery tester is characterized by comprising a frame and two clamps oppositely arranged in the frame
Compared with the prior art, the utility model has the beneficial effects that:
the clamp comprises a clamp body, a probe connecting rod, a clamp plate assembly, a probe assembly and a probe connecting rod, wherein the clamp plate assembly of the clamp is connected with the same clamp plate connecting rod, and the probe assembly of the same row is also connected with the same probe connecting rod, so that the clamping force of the probe assembly and the clamp plate assembly is uniform when the clamp plate connecting rod and the probe connecting rod are displaced relatively, and the probe assembly and the clamp plate assembly can stably clamp the electrode lug of a battery; furthermore, one clamping piece and one copper sheet correspondingly clamp one lug, so that the probe assembly is ensured to be in better contact with the lug; in addition, the probe connecting rod and the pressure plate connecting rod are driven to move relatively to clamp or loosen the electrode lugs by the pressure plate assembly and the probe assembly, so that the operation is simple, the battery electrode lugs are conveniently taken and placed, and the efficiency of the battery tester is improved.
Drawings
Fig. 1 is a perspective view of a battery tester of the utility model;
FIG. 2 is a perspective view of a hidden portion of a frame of a battery tester according to the present invention;
FIG. 3 is a perspective view of the clamp of the present invention;
FIG. 4 is a perspective view of the platen assembly in the clamp of the present invention;
FIG. 5 is an exploded perspective view of the probe assembly in the fixture of the present invention;
fig. 6 is a perspective exploded view of the adjustment mechanism in the clamp of the present invention.
In the figure: 100. a clamp; 1. a pressure plate connecting rod; 2. a platen assembly; 21. a support plate; 211. a horizontal portion; 212. a vertical portion; 22. a copper sheet; 23. a voltage terminal; 24. an insulating sleeve; 25. a fixed block; 3. a probe connecting rod; 4. a probe assembly; 41. a mounting seat; 411. a main body portion; 4111. a first side surface; 4112. a second side surface; 4113. a projection; 4114. an accommodating groove; 42. a clamping member; 421. a metal plate; 422. a splint; 43. a current terminal; 44. a back lock metal plate; 5. an adjustment mechanism; 51. a connecting plate; 52. a horizontal plate; 53. A pulley; 54. a drive plate; 541. a rectangular portion; 542. a trapezoidal portion; 55. a cylinder; 56. a drive beam; 6. A fan; 200. a battery tester; 300. a frame.
Detailed Description
Embodiments of the present invention will be further described with reference to the accompanying drawings and detailed description.
As shown in fig. 1 and 2, a battery tester 200 according to the present invention includes a frame 300, two clamps 100 disposed in the frame 300, and a restraining tray (not shown, the same below) disposed between the two clamps 100. When the battery tester 200 works, the batteries are clamped in the restraint tray in two rows, and the two clamps 100 respectively clamp the lugs of the two rows of batteries to perform charging and discharging tests.
As shown in fig. 3 to 6, each of the clamps 100 has a platen link 1 and two probe links 3 arranged in parallel, and the platen link 1 is located between the two probe links 3, and a plurality of platen assemblies 2 are sequentially arranged and mounted on the platen link 1, so that the platen assemblies 2 are displaced left and right along with the platen connection. Specifically, each clamp plate assembly 2 including install in a backup pad 21 of clamp plate connecting rod 1, each backup pad 21 have install perpendicularly in a horizontal part 211 of clamp plate connecting rod 1, with a vertical part 212 that the horizontal part 211 terminal surface links to each other, two copper sheets 22 install respectively in vertical part 212 side surface just is arranged from top to bottom, two voltage terminal 23, two copper sheets 22 are connected respectively to its one end, and the partial volume test power supply (not shown in the figure, same down) is connected to the other end, and an insulating cover 24 is established the preceding terminal surface of vertical part 212, copper sheet 22 connects the medial surface of insulating cover 24, so avoid clamp plate assembly 2 scrapes and bumps the battery that awaits, reduces the risk that the battery that awaits measuring damaged. Further, clamp plate assembly 2 still includes a fixed block 25, fixed block 25 is "L" type, and its horizontal plane lock in 1 surface of clamp plate connecting rod, its vertical face lock in backup pad 21 horizontal part 211, so make clamp plate assembly 2 is stably fixed in on the clamp plate connecting rod 1, avoid clamp plate assembly 2 is relative clamp plate connecting rod 1 rocks, increases the steadiness of the clamping-force of anchor clamps 100.
A plurality of probe components 4, be two rows of settings, install respectively in two on the probe connecting rod 3, each probe component 4 includes that a mount pad 41 is fixed in probe connecting rod 3, install in a holder 42 of mount pad 41, holder 42 is just right copper sheet 22, and with a current terminal 43 of holder 42 electric connection, current terminal 43 one end is connected holder 42, and the other end is connected divide the appearance to test the power. When the clamp 100 clamps the tab of the battery to be tested, the pressing plate connecting rod 1 and the two probe connecting rods 3 are relatively displaced to drive the pressing plate assembly 2 and the probe assembly 4 to relatively displace until one copper sheet 22 and the corresponding clamping piece 42 clamp the tab of the battery to be tested.
With the arrangement, when the probe connecting rod 3 and the pressure plate connecting rod 1 are displaced relatively left and right, all the probe assemblies 4 and all the pressure plate assemblies 2 are driven to approach or separate from each other, so that the pressure plate assemblies 2 and the probe assemblies 4 clamp or release tabs of a battery to be tested, because one probe assembly 4 only contacts one tab of the battery to be tested, the contact stability of the probe assemblies 4 and the tabs of the battery to be tested is greatly improved, and because all the probe assemblies 4 and all the pressure plate assemblies 2 are completely consistent in displacement step, the stability of the clamping force of each probe assembly 4 and each corresponding pressure plate assembly 2 for clamping the tabs is ensured, the tabs are conveniently clamped and released by the probe assemblies 4 and the corresponding pressure plate assemblies 2, and the battery dismounting efficiency of the battery tester 200 is improved.
Each clamping piece 42 is provided with three metal plates 421 tightly attached and three clamping plates 422 attached to the surfaces of the metal plates 421 in a row, and the three clamping plates 422 are opposite to the copper sheet 22, so that the copper sheet 22 and the metal plates 421 clamp the lugs of the battery to be tested, and the contact stability of the probe assembly 4 and the lugs is improved. Further, mount pad 41 has a main part 411, main part 411 lock in probe connecting rod 3, main part 411 has a relative first side 4111 and a second side 4112, first side 4111 is just right the backup pad 21, just first side 4111 outwards protrudes and forms a protrusion 4113, the protrusion supports three metal sheet 421, second side 4112 indent forms an accommodation groove 4114, an accommodation groove 4114 back lock panel beating 44, a plurality of bolts pass three metal sheet 421 mount pad 41 with back lock panel beating 44 will metal sheet 421, mount pad 41 with back lock panel beating 44 is in the same place, has guaranteed wholly the structural stability of holder 42.
The clamp 100 further comprises two adjusting mechanisms 5 which respectively clamp two ends of the pressure plate connecting rod 1 and two probe connecting rods 3 and drive the pressure plate connecting rod 1 and the two probe connecting rods 3 to move left and right relatively, each adjusting mechanism 5 comprises two connecting plates 51 which are vertically arranged, wherein one connecting plate 51 is clamped on the pressure plate connecting rod 1, the other connecting plate 51 is clamped on the probe connecting rod 3, two horizontal plates 52 are respectively connected with the two connecting plates 51, two pulleys 53 are respectively arranged below the two horizontal plates 52, a driving plate 54, the driving plate 54 has a rectangular portion 541 and a trapezoidal portion 542 formed by extending the rectangular portion 541, the rectangular portion 541 is connected to at least one cylinder 55, and moves closer to or farther from the pulley 53 by the driving force of the cylinder 55, and the two oblique sides of the trapezoidal portion 542 are respectively attached to the two pulleys 53. When the driving plate 54 moves toward the pressing plate connecting rod 1 and the probe connecting rod 3, the two oblique sides of the trapezoid portion 542 push the two pulleys 53 to move relatively, so as to drive the probe connecting rod 3 and the pressing plate connecting rod 1 to move relatively, and the purpose that the probe assembly 4 and the pressing plate assembly 2 approach each other is achieved. Further, the adjusting mechanism 5 further comprises two air cylinders 55 and a driving beam 56, two ends of the driving beam 56 are respectively connected with the two air cylinders 55, and the driving plate 54 is connected between the two air cylinders 55, so that the pneumatic air of the air cylinders 55 is transmitted to the driving plate 54, the driving plate 54 drives the pulleys 53 to move, the consistency of the clamping force of each probe assembly 4 and the clamping plate assembly 2 is ensured, the long-time uniform stress of the tab is ensured, and the influence of the clamping force on the test result is reduced.
The fans 6 are arranged in a row right above the probe assembly 4, so that the temperature of the probe assembly 4 and the pressure plate assembly 2 during working is reduced, and the service life of the battery tester 200 is prolonged.
The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are within the protection scope of the present invention.