CN207677013U - Guide assembly and jig for battery - Google Patents

Abstract

The utility model provides a guide assembly and a battery clamp. The guiding assembly includes a guiding body, a clamping piece, a compression body and a spring. The guide body includes a base and a guide plate, the base is provided with a through hole and an inner slide groove, and the inner slide groove is arranged around the through hole along the circumferential direction. The clamping piece has a chuck and an elastic claw, and the chuck is fixed on the base and is located on the lower side of the through hole and the inner chute. The compression body has a button and a bead, the button is slidably arranged in the through hole and protrudes from the base; the bead is arranged in the corresponding inner chute and extends downward, and the free end of the bead passes through the chuck And press against the corresponding elastic claws. The spring is clamped between the button and the chuck, and the spring presses the pressing bar against the bottom wall of the inner chute through the button and makes the free ends of the elastic claws expand radially outward. The battery clamp includes a plurality of splints, and every two adjacent splints are used to clamp a battery, and the guide assembly is installed on the splints.

Description

Guide assembly and jig for battery

technical field

The utility model relates to the field of battery production, in particular to a guide assembly and a battery clamp.

Background technique

Soft-packed power batteries are favored by domestic and foreign automobile companies because of their high energy density and light weight. In the manufacturing process of large-scale batteries, the process of formation and capacity testing has the highest safety factor requirements.

In the formation or capacity testing process, it is necessary to use the robot to automatically insert the battery into the jig (the jig is used to pressurize the battery, and in the formation process, the jig is also used to heat the battery), and this involves a key part ——The guide head, the guide head is fixed above the fixture and used to guide the battery to determine whether the battery can enter the fixture accurately; at the same time, after the battery enters the fixture, the guide head is also needed to straighten the air bag of the battery; in addition, the fixture is used for Structures such as the insulating sheet supporting the battery and the silicone sheet for adjusting the gap between the fixtures are all fixed on the guide head.

In the prior art, the guide head used in the formation or capacity test is usually fixed to the fixture in the form of a bolt. However, in the formation or capacity test, the gas produced by the battery causes the air bag to expand, and the pin is easily lifted and squeezed. , and cause the deflection of the guide head to fail, causing the silicone sheet and insulating sheet to fall off; when the next battery is fed, the deflected guide head may interfere with the battery, or even squeeze the battery and cause a serious safety accident.

In order to improve the fixing strength between the guide head and the jig, screw fastening is also used in the prior art to improve the installation stability of the guide head. However, in order to improve efficiency, the jig needs to hold multiple batteries each time, which also makes the guide head The quantity is huge, therefore, directly using screws to fasten will cause the installation of the guide head to be complicated, which is not conducive to the quick change of the guide head.

Utility model content

In view of the problems existing in the background technology, the purpose of this utility model is to provide a guide assembly and a battery clamp, wherein the guide assembly in the battery clamp is firmly installed and easy to replace.

In order to achieve the above object, in a first aspect, the utility model provides a guide assembly, which includes a guide body, a clip, a compression body and a spring. The guide body includes a base and a guide plate extending upward from the upper surface of the base. The base is provided with a through hole and an inner slide groove, and the inner slide groove is arranged around the through hole along the circumferential direction. The clamping piece has a chuck and elastic claws fixed on the lower side of the chuck, the chuck is fixed on the base and is located on the lower side of the through hole and the inner chute, the elastic claws are arranged along the circumferential direction of the chuck, and the elastic claws The claws are the same in number as the inner chute. The compression body has a button and a pressing bar. The button is slidably arranged in the through hole and protrudes from the top of the base; The inner chute extends downward, and the free end of the bead passes through the chuck and presses against the corresponding elastic claw. The spring is clamped between the button and the chuck, and the spring presses the pressure bar against the bottom wall of the inner chute through the button and makes the free end of the elastic claw radially outward, and when the pressure bar overcomes the elastic force of the spring and moves along the inner When the chute slides downward, the free end of the bead presses down on the elastic claw, and the free end of the elastic claw draws inward along the radial direction.

In order to achieve the above object, in a second aspect, the utility model provides a battery clamp, which includes a plurality of splints arranged in sequence along the lateral direction, and every two adjacent splints are used to clamp the battery. The guide assembly described in the first aspect of the utility model is installed on each splint.

Each splint has an upper mounting hole and a lower mounting hole communicating with the upper mounting hole, and the diameter of the lower mounting hole is larger than that of the upper mounting hole. The free end of the elastic claw extends into the lower mounting hole through the upper mounting hole, and expands radially outward in the lower mounting hole and snaps into the lower mounting hole; when the free end of the elastic claw is retracted radially inward can pass through the upper mounting hole.

The beneficial effects of the utility model are as follows: during the process of inserting each battery into two adjacent splints, the guide plate of the guide body can guide the batteries to ensure that each battery accurately enters between the two splints. And because the elastic claws of the clamping parts are clamped in the lower installation hole of the splint, the guide body can be firmly installed on the splint, and will not be squeezed by the battery during the process of inserting the battery or the process of forming the battery, so as to avoid the next Interfere with the battery during circulation to prevent the guide plate from crushing the battery. In addition, the guide assembly can be separated from the splint by pressing the button, so that guide assemblies of different specifications can be easily replaced.

Description of drawings

Fig. 1 is a schematic diagram of a battery clamp according to the present invention before a battery is put into it.

Fig. 2 is a schematic diagram of the battery clamp according to the present invention after the battery is put into it.

FIG. 3 is a schematic diagram of a guide assembly according to the present invention.

FIG. 4 is an exploded view of the guide assembly according to the present invention.

Fig. 5 is a schematic diagram of the connection between the guide assembly and the fixing bar according to the present invention.

Fig. 6 is an exploded view of the guide assembly and the fixing bar according to the present invention.

Fig. 7 is a perspective view of the clamping part of the guide assembly according to the present invention.

Fig. 8 is a perspective view of the compression body of the guide assembly according to the present invention.

Wherein, the reference signs are explained as follows:

1 guide assembly 1311 blind hole

11 guide body 132 bead

111 Base 14 Spring

1111 through hole 15 magnet

1112 inner chute 2 plywood

1113 sinking tank 21 layers

1114 storage hole 22 fixing strips

112 guide plate 3 connecting rods

1121 guide surface B battery

113 positioning column B1 air bag

12 Clamping piece H1 upper mounting hole

121 chuck H2 lower mounting hole

1211 notch H3 positioning hole

122 elastic jaws X horizontal

123 raised Y longitudinal

13 Compression body Z up and down direction

131 buttons

Detailed ways

The guide assembly and the battery clamp of the present invention will be described in detail below with reference to the accompanying drawings.

Firstly, the guide assembly according to the first aspect of the present utility model will be described.

Referring to FIGS. 1 to 8 , the guide assembly 1 according to the present invention includes a guide body 11 , a clip 12 , a compression body 13 and a spring 14 .

The guide body 11 includes a base 111 and a guide plate 112 extending upward from the upper surface of the base 111 . The base 111 is provided with a through hole 1111 and an inner sliding groove 1112 , and the inner sliding groove 1112 is arranged around the through hole 1111 along the circumferential direction.

The clip 12 has a chuck 121 and an elastic claw 122 fixed on the lower side of the chuck 121. The chuck 121 is fixed on the base 111 and is located on the lower side of the through hole 1111 and the inner chute 1112. The circumferential arrangement of the disk 121, and the number of the elastic claws 122 and the inner slide grooves 1112 are the same.

The compression body 13 has a button 131 and a pressing bar 132. The button 131 is slidably arranged in the through hole 1111 and protrudes from the top of the base 111; Around, the pressing bar 132 is slidably disposed in the corresponding inner slide groove 1112 and extends downward, and the free end of the pressing bar 132 passes through the chuck 121 and presses against the corresponding elastic claw 122 .

The spring 14 is clamped between the button 131 and the chuck 121, and the spring 14 presses the pressing bar 132 against the bottom wall of the inner chute 1112 via the button 131 and makes the free end of the elastic claw 122 spread outward radially, while When the pressing bar 132 overcomes the elastic force of the spring 14 and slides down along the inner chute 1112 , the free end of the pressing bar 132 presses down on the elastic claw 122 , and the free end of the elastic claw 122 draws inward along the radial direction.

The guide assembly 1 can be conveniently fixed to the target unit only by setting a stepped hole with a small top and a large bottom on the target unit (such as the fixing bar 22 described later).

Specifically, when the target unit needs to install the guide assembly 1, press the button 131, the button 131 drives the pressing bar 132 to slide down along the inner chute 1112, and the pressing bar 132 presses down the elastic claw 122, so that the elastic claw 122 can move freely. The ends converge radially inward.

Wherein, the elastic claw 122 can be an oblique bar that is inclined outward relative to the up-down direction Z. When the bead 132 presses down on the elastic claw 122, the elastic claw 122 wraps around the fixed end (that is, the connection between the elastic claw 122 and the chuck 121 ). end) swing. The free ends of a plurality of elastic claws 122 can encircle a circular area, and when the pressing bar 132 presses down on the elastic claws 122, the diameter of the circular area gradually becomes smaller; when the pressing bar 132 moves upward, the elastic claws 122 It tends to return to its original shape under its own elastic force, and the diameter of the circular area gradually becomes larger.

When the free end of the elastic claw 122 is drawn inward radially, it can penetrate into the stepped hole of the target unit; Move up and down until the pressing bar 132 abuts against the bottom wall of the inner sliding groove 1112 . While the pressing bar 132 moves upward, the free end of the elastic claw 122 expands radially outward and is caught in the stepped hole, thereby fixing the base 111 to the target unit.

Similarly, when the guide assembly 1 needs to be replaced, the elastic claw 122 can be pulled out from the stepped hole by pressing down the button 131 . In addition, because the various parts of the guide assembly 1 are connected in a detachable manner, they can be easily replaced and maintained, thereby reducing the loss of the guide assembly 1 .

Referring to FIG. 7 , there are preferably three elastic claws 122 and they are evenly arranged along the circumferential direction of the chuck 121 . The chuck 121 can be fixed to the base 111 by bolts.

Referring to FIG. 4 and FIG. 6 , the base 111 can be provided with a sinking groove 1113 on the lower side, and the chuck 121 is accommodated in the sinking groove 1113 and fixed to the bottom wall of the sinking groove 1113 . The through hole 1111 extends upward from the bottom wall of the sinker 1113 and penetrates through the base 111 , and the inner sliding groove 1112 is recessed upward from the bottom wall of the sinker 1113 to a predetermined depth. Opening the sinking groove 1113 can save space and reduce the overall height of the guide assembly 1. At the same time, it can also prevent the chuck 121 from interfering with the target unit (specifically, if the chuck 121 protrudes from the bottom surface of the base 111, then when installing the guide assembly 1 , the target unit needs to open a groove to accommodate the chuck 121).

5 to 8, the top of the chuck 121 is provided with a protrusion 123, the button 131 is provided with a blind hole 1311, one end of the spring 14 is inserted into the protrusion 123, and the other end extends into the blind hole 1311.

Referring to FIG. 7 and FIG. 8 , the chuck 121 is provided with a notch 1211 for the bead 132 to pass through.

The through hole 1111 may be a stepped hole with a small top and a large bottom, and correspondingly, the button 131 may also be a stepped cylinder with a small top and a large bottom.

Referring to FIG. 3 and FIG. 4 , the guide plate 112 is provided with guide surfaces 1121 on both sides along the transverse direction X, and each guide surface 1121 is gradually deflected outward along the transverse direction X during the process of extending downward. In other words, the guide plate 112 may be in the shape of a rocket head with a narrow head and a wide middle.

Referring to FIG. 6 , a receiving hole 1114 is provided on the lower side of the base 111 , and the guide assembly 1 further includes a magnet 15 received in the receiving hole 1114 . The magnet 15 can be fixed on the base 111 by screws.

Referring to FIG. 4 and FIG. 6 , a positioning column 113 extending downward is further provided on the lower side of the base 111 .

Next, the battery clamp according to the second aspect of the present invention will be described.

Referring to FIG. 1 to FIG. 8 , the battery clamp according to the present invention includes a plurality of splints 2 arranged in sequence along the transverse direction X, and two adjacent splints 2 are used to clamp the battery B. The guide assembly 1 described in the first aspect of the present utility model is installed on each splint 2 .

Each splint 2 has an upper mounting hole H1 and a lower mounting hole H2 communicating with the upper mounting hole H1 , and the diameter of the lower mounting hole H2 is larger than that of the upper mounting hole H1 . The free end of the elastic claw 122 extends into the lower mounting hole H2 through the upper mounting hole H1, and expands radially outward in the lower mounting hole H2 and snaps into the lower mounting hole H2; when the free end of the elastic claw 122 is in the It can pass through the upper mounting hole H1 when being folded radially inward.

The installation process of the guide assembly 1 is as follows: first, press the button 131, the button 131 drives the pressing bar 132 to slide down along the inner chute 1112, and the pressing bar 132 presses down the elastic claw 122, so that the free end of the elastic claw 122 moves along the radial direction. Fold inward; then insert the elastic claws 122 of the clamping parts 12 into the upper mounting holes H1 of each splint 2; when the free end of the elastic claws 122 enters the lower mounting hole H2, release the button 131, and the bezel 132 is in the spring 14 moves upwards, and the free end of the elastic claw 122 expands radially outwards and is stuck in the lower mounting hole H2 (specifically, a step is formed between the upper mounting hole H1 and the lower mounting hole H2, and the elastic claw 122 The free end of the base 111 is clamped on the step), thereby fixing the base 111 to the splint 2. When the guide assembly 1 needs to be replaced, the elastic claw 122 can be pulled out from the upper mounting hole H1 by pressing down the button 131 .

The battery jig according to the utility model can be used for the formation or capacity test of the pouch battery B. Taking chemical formation as an example, the battery clamp of the present invention is used to fix the battery B in the chemical formation process and apply pressure to the battery B.

Referring to Fig. 1 and Fig. 2, the formation process of battery B is as follows: the manipulator grabs a plurality of batteries B to be formed and inserts each battery B between the two splints 2, and then the two splints 2 move toward the center and squeeze Battery B, finally charge and discharge battery B.

During the process of inserting each battery into two adjacent splints 2 , the guide plate 112 of the guide body 11 can guide the battery B to ensure that each battery B enters between the two splints 2 accurately. Since the elastic claws 122 of the clamping member 12 are engaged with the lower mounting hole H2 of the splint 2, the guide body 11 can be firmly installed on the splint 2, and will not be inserted into the battery B or during the formation of the battery B. Squeezed by the battery B, to avoid interference with the battery B in the next cycle (that is, the process of inserting the next batch of battery B into the splint 2), and prevent the guide plate 112 from breaking the battery. In addition, the guide assembly 1 can be separated from the splint 2 by pressing the button 131 , so the guide assembly 1 with different specifications can be easily replaced.

The battery clamp of the present utility model also includes a support piece and a silica gel sheet (not shown), the support piece is arranged between two splints 2 and is used to support the battery B, the support piece can be fixed on the guide body 11; the silica gel sheet is clamped on Between the splint 2 and the battery B, it is fixed on the guide body 11 . The silicone sheet can adjust the gap between the two splints 2, so that by adjusting the thickness of the silicone sheet, it can be applied to batteries B of different specifications.

Since the guide body 11 is firmly installed on the splint 2 through the elastic claws 122, the stability of the installation of the support member and the silicone sheet can be ensured, and the support member and the silicone sheet can be prevented from falling off.

Battery B will release gas during the formation process, so battery B retains an air bag B1 on the upper side, and the gas produced by battery B flows into the air bag B1. After the battery B is inserted between the two splints 2, the air bag B1 is usually located between the two guide plates 112, so the guide plate 112 can also straighten the air bag B1 to prevent the air bag B1 from bending and deflecting. As the chemical formation progresses, the air bag B1 expands gradually. However, since the guide body 11 is firmly installed on the splint 2 through the elastic claws 122, the guide body 11 will not be squeezed crookedly by the air bag B1.

The battery clamp of the present invention further includes a connecting rod 3, and the plurality of splints 2 are slidably arranged on the connecting rod 3 along the transverse direction X. After the battery B is inserted between the splints 2, the external driving part drives the splint 2 to move along the connecting rod 3 to squeeze the battery B.

Referring to FIGS. 1 to 4 , the guide surface 1121 of the guide plate 112 can guide the battery B. Referring to FIG.

Referring to FIG. 1 and FIG. 2 , each clamping plate 2 includes a laminate 21 and a fixing bar 22 fixed on the top of the shelf 21 , the laminate 21 is used to clamp the battery B, and the guide assembly 1 can be installed on the fixing bar 22 .

Preferably, a receiving hole 1114 is provided on the lower side of the base 111, and the guide assembly 1 also includes a magnet 15 housed in the receiving hole 1114; the fixing bar 22 is made of ferromagnetic material, and the laminate 21 can be made of aluminum alloy . The magnet 15 can be strongly attracted to the fixing bar 22 , thereby further improving the stability of the base 111 being installed.

Preferably, referring to FIG. 5 and FIG. 6 , a positioning post 113 extending downward is further provided on the underside of the base 111 , and the fixing bar 22 is provided with a positioning hole H3 matching with the positioning post 113 . The positioning column 113 can improve the stability of the installation of the base 111 and prevent the base 111 from rotating around the elastic claw 122 .

Referring to FIG. 6 , the fixing bar 22 is provided with a groove on the upper surface, and the upper mounting hole H1 is provided on the bottom wall of the groove. The groove can be used to provide space for the bead 132 to move up and down.

Claims (12)

1. A guide assembly (1), characterized in that it comprises a guide body (11), a clip (12), a compression body (13) and a spring (14); The guide body (11) includes a base (111) and a guide plate (112) extending upward from the upper surface of the base (111). The base (111) is provided with a through hole (1111) and an inner slide groove (1112). The chute (1112) is circumferentially arranged around the through hole (1111); The clip (12) has a chuck (121) and an elastic claw (122) fixed on the underside of the chuck (121), the chuck (121) is fixed on the base (111) and is located between the through hole (1111) and On the lower side of the inner chute (1112), the elastic claws (122) are arranged along the circumferential direction of the chuck (121), and the number of the elastic claws (122) and the inner chute (1112) is the same; The compression body (13) has a button (131) and a bead (132), the button (131) is arranged in the through hole (1111) slidingly up and down and protrudes from the top of the base (111); the bead (132) and the elastic claw (122) are identical in number and are fixed around the button (131) along the circumferential direction. The end passes through the chuck (121) and is pressed against the corresponding elastic claw (122); The spring (14) is clamped between the button (131) and the chuck (121), and the spring (14) presses the pressure bar (132) against the bottom wall of the inner chute (1112) via the button (131) and makes the elastic clamp The free ends of the pawls (122) spread radially outwards, and when the bead (132) overcomes the elastic force of the spring (14) and slides down along the inner chute (1112), the free end of the bead (132) presses down on the elastic The claw (122), the free end of the elastic claw (122) draws inward along the radial direction. 2. Guide assembly (1) according to claim 1, characterized in that, The base (111) is provided with a sinker (1113) on the lower side, and the chuck (121) is accommodated in the sinker (1113) and fixed to the bottom wall of the sinker (1113); The through hole (1111) extends upward from the bottom wall of the sinker (1113) and penetrates through the base (111), and the inner chute (1112) is recessed upward from the bottom wall of the sinker (1113) to a predetermined depth. 3. The guide assembly (1) according to claim 1, characterized in that a protrusion (123) is provided on the top of the chuck (121), a blind hole (1311) is provided on the button (131), and one end of the spring (14) embedded into the protrusion (123), and the other end extends into the blind hole (1311). 4. The guide assembly (1) according to Claim 1, characterized in that, the chuck (121) is provided with a notch (1211) for the bead (132) to pass through. 5. The guide assembly (1) according to claim 1, characterized in that the through hole (1111) is a stepped hole with a small top and a large bottom, and the button (131) is a stepped cylinder with a small top and a large bottom. 6. The guide assembly (1) according to claim 1, characterized in that the guide plate (112) is provided with guide surfaces (1121) on both sides along the transverse direction (X), and each guide surface (1121) extends downwards. During the process, gradually deflect outward along the horizontal direction (X). 7. The guide assembly (1) according to claim 1, characterized in that, a receiving hole (1114) is further provided on the underside of the base (111), and the guide assembly (1) also includes a receiving hole (1114) magnets (15). 8. The guide assembly (1) according to claim 1, characterized in that, a positioning column (113) extending downward is further provided on the lower side of the base (111). 9. A battery clamp, comprising a plurality of splints (2) arranged in sequence along the transverse direction (X), and two adjacent splints (2) are used to clamp the battery (B); It is characterized in that, Each splint (2) is equipped with a guide assembly (1) according to any one of claims 1-6; Each splint (2) has an upper mounting hole (H1) and a lower mounting hole (H2) communicating with the upper mounting hole (H1), and the aperture of the lower mounting hole (H2) is larger than the aperture of the upper mounting hole (H1); The free end of the elastic claw (122) extends into the lower mounting hole (H2) through the upper mounting hole (H1), and expands radially outward in the lower mounting hole (H2) and snaps into the lower mounting hole (H2) ; When the free end of the elastic claw (122) is retracted radially inward, it can pass through the upper mounting hole (H1). 10. The battery clamp according to claim 9, characterized in that each splint (2) comprises a laminate (21) and a fixing bar (22) fixed on the top of the laminate (21), the laminate (21) is used To hold the battery (B), the guide assembly (1) is installed on the fixing bar (22). 11. The battery jig according to claim 10, wherein: A receiving hole (1114) is also provided on the underside of the base (111), and the guide assembly (1) also includes a magnet (15) housed in the receiving hole (1114); The fixing strip (22) is made of ferromagnetic material. 12. The battery clamp according to claim 10, characterized in that, the lower side of the base (111) is also provided with a positioning column (113) extending downward, and the fixing bar (22) is provided with the positioning column (113) Fitting locating hole (H3).