CN220591990U - Current collecting disc welding equipment - Google Patents

Abstract

The welding equipment for the current collecting disc comprises a welding gun and a clamp, wherein a battery placing position is arranged on the clamp, and the welding gun is arranged towards the battery placing position; the clamp comprises a rotating structure, and the rotating structure can integrally rotate around a first axle center; the rotating structure comprises two clamping parts oppositely arranged in a second direction, the second direction forms an included angle with the axial direction of the first axle center, and the battery placement position is formed between the two clamping parts and is positioned at the first axle center; at least one of the two clamping parts is provided with a movable clamping piece, and the size of the battery in the second direction can be changed after the movable clamping part moves; the rotating structure further comprises an elastic member, and the movable clamping member is held at a position closer to the other clamping member by the elastic member. The utility model optimally designs the clamp according to the welding condition of the battery current collecting disc, so that the welding equipment has the advantages of simple structure, smaller volume and lower cost.

Description

Current collecting disc welding equipment

Technical Field

The utility model relates to the technical field of battery production equipment, in particular to secondary battery current collecting disc welding equipment.

Background

The existing welding equipment of the battery current collecting disc comprises a welding gun and a clamp, wherein the clamp comprises two groups of supporting wheels and two groups of pressing wheels, the rotating axes of the two supporting wheels and the two groups of pressing wheels are mutually parallel, the two groups of supporting wheels are adjacently arranged, a battery placing position is formed above the two groups of supporting wheels, the battery can be supported and stabilized by the surfaces of the two supporting wheels after being placed on the battery placing position, after the battery is placed, the two groups of pressing wheels are controlled to move through a motor or other power sources until the surfaces of the two groups of pressing wheels are uniformly pressed against the battery, the motor or the power source is controlled to enable the pressing wheels to be kept at the current position, at the moment, the battery is fixed by the two supporting wheels and the two pressing wheels, and any supporting wheel or pressing wheel can drive the battery to rotate after being driven by the motor.

The two groups of welding guns are opposite to the two axial ends of the battery placement position, and the positions of the two groups of welding guns are adjusted to weld the end covers of the current collecting discs of the positive electrode and the negative electrode of the two axial ends of the battery.

The existing welding equipment for the battery collecting disc has the problems that although the fixing device is arranged in a mode of a plurality of wheel groups, the fixing device is suitable for fixing batteries with different diameters, the equipment is complex in structure, large in size and high in cost.

Disclosure of Invention

The utility model aims to provide a battery current collecting disc welding device which is simple in structure, small in size and low in cost.

The welding equipment for the current collecting disc comprises a welding gun and a clamp, wherein a battery placing position is arranged on the clamp, and the welding gun is arranged towards the battery placing position; the clamp comprises a rotating structure, and the rotating structure can integrally rotate around a first axle center; the rotating structure comprises two clamping parts oppositely arranged in a second direction, the second direction forms an included angle with the axial direction of the first axle center, and the battery placement position is formed between the two clamping parts and is positioned at the first axle center; at least one of the two clamping parts is provided with a movable clamping piece, and the size of the battery in the second direction can be changed after the movable clamping part moves; the rotating structure further comprises an elastic member, and the movable clamping member is held at a position closer to the other clamping member by the elastic member.

As can be seen from the above-mentioned scheme, in the clamp of the present utility model, the battery size of the battery placement position is adjustable by a pair of movable clamping members, so that batteries with different diameters can be clamped; and because the battery is small in size and light in weight and does not need to rotate at a high speed during welding, the utility model utilizes the restoring force of the elastic piece to provide clamping force for clamping the battery, reduces the main power source relative to the background technology and simplifies the structure. Then, the battery can be driven to rotate by controlling the rotation structure to rotate. Therefore, the utility model optimally designs the clamp according to the welding condition of the battery current collecting disc, so that the welding equipment has the advantages of simple structure, smaller volume and lower cost.

Still further, the rotating structure comprises a rotating seat, the movable clamping piece comprises a clamping part and a guiding part, the guiding part is connected with the clamping part, the guiding part extends along a second direction, and the clamping part is opposite to the battery placing position; the rotating seat is provided with a guide channel, and the guide part is matched with the guide channel to limit the movement freedom degree of the movable clamping piece in a second direction.

From the above, it is preferable that the movable clamp member is movable along a line, which arrangement is more advantageous for the center of the clamped batteries of different diameters to be maintained on the rotation axis (first axis) of the clamp. The straightness accuracy that movable clamping piece removed can effectively be guaranteed under guide part and the cooperation of direction passageway, the first axle center of alignment all the time is guaranteed to movable clamping piece removal front and back, guarantees that the battery of different diameters also can aim at first axle center, guarantees the accuracy of welding position then.

Further, the rotating seat is provided with a sliding groove extending along the second direction; the movable clamping piece comprises a sliding part, the sliding part is connected with the clamping part, the sliding part is in sliding fit with the chute along a second direction, and the elastic piece is arranged in the chute; the elastic piece is pulled between the movable clamping piece and the rotating seat, or the two clamping parts are both movable clamping pieces, and the elastic piece is pulled between the two sliding parts; the movable clamp member is held in a position closer to the other clamp member by the contraction restoring force of the elastic member.

From the above, can avoid movable holder to produce axial deflection under spout and the cooperation of sliding part, guarantee that movable holder action is accurate effective, in addition, provide the elastic component of shrink restoring force like tension spring can reduce cost, and the elastic component setting is not only avoided droing, is protected and optimize equipment structure in the spout.

Still further, the rotating seat includes a bottom portion and two side portions disposed opposite to each other in the second direction; the two clamping parts are movable clamping parts, and the two movable clamping parts are arranged between the two side parts; the chute is arranged at the bottom, and the guide channel is arranged on the side part.

From the above, the two clamping parts are firmly limited in the middle position of the concave rotating seat, so that the structure is more compact and reliable.

The fixture comprises a fixed seat, a driving unit and a gear, wherein the driving unit is arranged on the fixed seat and drives the gear; the rotating structure comprises a gear ring arranged on the periphery of the rotating structure; the rotating structure is rotationally connected to the fixed seat around the first axle center, and the gear is meshed with the gear ring.

From the above, the gear ring is arranged on the periphery of the rotating seat, and the mode of adopting the gear ring as the rotating driven piece can well avoid the obstruction and influence on the arrangement and the operation of the clamping part and the elastic piece in the middle of the rotating seat.

Still further, be equipped with the pitch arc track that is used for with ring gear complex on the fixing base.

From the top, the arrangement ensures the stability of the action of the gear ring and ensures that the rotating structure of the clamp keeps rotating around the first axle center stably.

The battery placing position is communicated in the axial direction; in the axial direction, two welding guns are respectively arranged at two opposite sides of the battery placement position.

Therefore, the welding work of the current collecting discs of the positive electrode and the negative electrode at the two ends of the battery can be simultaneously carried out under the arrangement, and the welding efficiency is improved by times.

Further aspects include at least one of the following: the welding gun can be axially adjusted; the pitch angle of the welding gun can be adjusted; the horizontal angle of the welding gun can be adjusted.

In a still further scheme, the collecting disc welding equipment further comprises a welding gun bracket; the fixture is provided with an adjusting groove which is axially arranged, and the welding gun bracket is inserted in the adjusting groove; the welding gun is rotatably connected to the welding gun support.

As can be seen from the above, the arrangement enables the welding gun to have a better degree of freedom in adjustment to accommodate welding of batteries of different diameters.

In a still further scheme, an avoidance hole is formed in the welding gun support, and the avoidance hole is axially opposite to the end of the battery placement position.

From the above, under this setting, under the prerequisite that does not need to dismantle the welder support, the battery can be put into the battery place after dodging the hole along the axial to reduce the operation degree of difficulty.

Drawings

Fig. 1 is a block diagram of an embodiment of a current collecting plate welding apparatus of the present utility model.

Fig. 2 is a block diagram of an embodiment of the current collecting plate welding apparatus of the present utility model, taken along an axial direction.

Fig. 3 is a view of a radially cut-away block diagram of an embodiment of a current collector plate welding apparatus of the present utility model.

Fig. 4 is an enlarged view of fig. 3 a.

Fig. 5 is a structural view of a rotating structure of an embodiment of a current collecting plate welding apparatus of the present utility model.

Fig. 6 is a block diagram of a movable clamp and a tension spring in an embodiment of a current collecting plate welding apparatus of the present utility model.

Fig. 7 is a block diagram of a gun carrier and gun in an embodiment of a current collecting plate welding apparatus of the present utility model.

Detailed Description

Referring to fig. 1, in the rectangular coordinate system, the x-axis direction represents the axial direction of the first axis L of the present utility model, the y-axis direction represents the radial direction of the first axis L, and also the second direction of the present utility model, the x-axis direction and the y-axis direction are both horizontal directions, and the z-axis direction represents the vertical direction.

Referring to fig. 1 and 2, the current collecting plate welding apparatus of the present utility model includes a jig 1, two welding guns 2, and two welding gun holders 3, the jig 1 including a fixed seat 11, a motor 191, a gear 192, and a rotating structure 12, the rotating structure 12 including a rotating seat 120, a gear ring 193, two movable holders 4, and two tension springs 5. The motor 191 is a driving unit of the present utility model, the tension spring 5 is an elastic member of the present utility model, and the movable clamping member 4 is a clamping member of the present utility model.

The current collecting plate welding equipment is based on a fixed seat 11, a motor 191, a gear 192, a rotating structure 12 and a welding gun bracket 3 are all arranged on the fixed seat 11, and a welding gun 2 is arranged on the welding gun bracket 3.

With continued reference to fig. 1 and 2, the fixing base 11 is formed with a mounting position penetrating in the x-axis direction and having a circular inner peripheral outline, while the outer peripheral outline of the rotating base 120 is also circular, and after the rotating base 120 is mounted on the circular mounting position of the fixing base 11, the rotating base 120 can rotate around the first axis L.

The body of the motor 191 is fixedly connected with the fixed seat 11, the output shaft of the motor 191 is in transmission connection with the gear 192, the gear ring 193 is fixed on the periphery of the rotating seat 120, the center of the gear ring 193 is coincident with the first axis L, the gear ring 193 is meshed with the gear 192, and the arrangement enables the motor 191 to drive the rotating seat 120 to rotate around the first axis L.

Referring to fig. 3 and fig. 4, further, in order to ensure stable and smooth rotation of the gear ring 193, an arc track 112 is provided on the fixing base 11, the gear ring 193 is disposed in the arc track 112, and a center of an arc along which the arc track 112 is located is on the first axis L; to further eliminate loosening of the ring gear 193 and further improve stability of the ring gear 193, annular convex edges 1931 are provided at opposite ends of the ring gear 193 in the x-axis direction, arc grooves 1121 are provided on surfaces of opposite ends of the arc rail 112, and the annular convex edges 1931 are located in the arc grooves 1121.

Referring to fig. 5, the rotating base 120 includes a bottom 121 and two side portions 122 protruding upward from opposite sides of the bottom 121, respectively, the two side portions 122 being disposed opposite to each other in the y-axis direction, the bottom 121 and the two side portions 122 forming a surrounding structure like a "u", and a space penetrating in the x-axis direction and opening in the z-axis forward being formed between the bottom 121 and the two side portions 122, and the two movable clamping members 4 being disposed in the space.

Referring to fig. 5 and 6, the movable clamp 4 includes a clamp 41, a slide 42 and a guide 43, the clamp 41 being a wall extending along an arc surface, the clamp 41 having a clamp surface 410, the clamp surface 410 being an inwardly concave arc surface, the slide 42 extending downward in a rod shape from a bottom edge of the clamp 41, one end of the tension spring 5 being connected to the slide 42 on the same side as the clamp surface 410. The guide portion 43 extends cylindrically in the y-axis direction from a back surface of the clamping portion 41 opposite to the clamping surface 410, and a first limiting protrusion 431 is provided on an end of the guide portion 43 away from the clamping portion 41.

The two movable holders 4 are disposed in the space so as to face each other in the y-axis direction with a space therebetween, and the holding surfaces 410 of the two holding portions 41 face each other, whereby the battery placing position 100 is formed between the two holding portions 41. The upper surface of the bottom 121 facing the space is provided with a chute 1210 extending along the y-axis direction, the lower end of the sliding part 42 extends into the chute 1210, the tension spring 5 is positioned in the chute 1210, and the other end of the tension spring 5 is connected to the bottom 121; the side of the side portion 122 facing the space is provided with a guide channel 1220 extending in the y-axis direction, the guide portion 42 is inserted into the guide channel 1220, and this arrangement allows the degree of freedom of movement of the movable clamp 4 to be limited in the y-axis direction, i.e., the movable clamp 4 can only move in the y-axis direction, and the first stopper protrusion 431 is in stopper engagement with the side portion 122 in the y-axis direction to prevent the movable clamp 4 from being released, while the tension spring 5 is pulled between the sliding portion 42 and the fixed seat 11, and the movable clamp 4 is held at a position closer to the other movable clamp 4 under the restoring force of the contraction of the tension spring 5, and when the movable clamp 4 is pulled, the dimension of the battery placing position 100 in the y-axis direction can be changed, thereby adapting the battery placing position 100 to batteries 9 of different diameters.

Referring to fig. 1, a battery placement site 100 is penetrated in the x-axis direction, and two welding guns 2 are respectively opposite to opposite ends of the battery placement site 100 in the x-axis direction. Referring to fig. 2, 3 and 7 again, the welding gun support 3 includes a horizontal portion 31 and an upright portion 32, the horizontal portion 31 is disposed at the bottom of the welding gun support 3 and extends along the x-axis direction, the upright portion 32 extends upward from a section of the horizontal portion 31, an avoidance hole 30 penetrating along the x-axis direction is disposed in the middle of the upright portion 32, a hinge portion 33 is disposed at the top of the upright portion 32, a connection seat 21 is rotatably connected with the hinge portion 33 around the second axis of the y-axis direction, and the welding gun 2 is rotatably connected with the connection seat 21 around a third axis L3 perpendicular to the second axis.

The bottom of the fixing base 11 is provided with an adjustment groove 111 extending in the x-axis direction, and the horizontal portion 31 is inserted into the adjustment groove 111 and is position-adjustable in the x-axis direction. In addition, the end of the horizontal portion 31 is further provided with a second limit protrusion 319, and the second limit protrusion 319 is in limit fit with the fixing base 11 in the x-axis direction to prevent the horizontal portion 31 from being removed from the adjustment groove 111.

It can be seen that with this arrangement, the position, horizontal and pitch angles of the gun 2 in the x-axis direction can be adjusted, and after the fixture 1 clamps the batteries 9 of different diameters, the gun 2 can be adjusted adaptively to ensure alignment with the current collecting tray welding points. In addition, the avoidance hole 30 is a circular through hole with a larger diameter, and in the x-axis direction, the avoidance hole 30 is opposite to the battery placing position 100, and the battery 9 to be processed can be placed in the battery placing position 100 through the avoidance hole 30.

When the current collecting disc welding equipment is used for welding the secondary battery current collecting disc, the clamp 1 of the current collecting disc welding equipment realizes the size adjustment of the battery placing position 100 through the pair of movable clamping pieces 4, and clamps the battery 9 by using the restoring force of the tension spring 5 to provide clamping force, and only one rotating driving unit is needed to be arranged on the clamp to reduce the input of a power source and simplify the equipment structure, and furthermore, the horizontal position, the horizontal angle and the pitch angle of the welding gun 2 can be adjusted according to the condition of the battery to be processed. Therefore, the utility model has the advantages of simple structure, smaller volume and lower cost under the condition of meeting the processing requirements of clamping and welding batteries with different diameters.

In addition, the two clamping members are disposed opposite to each other in the second direction, that is, at least a portion of the two clamping members overlap with each other in the projection in the second direction, and in this embodiment, the second direction is the y-axis direction, that is, the radial direction of the first axis L, and in this embodiment, the two clamping members are disposed opposite to each other in the radial direction of the first axis L, and the projections of the two clamping members in the radial direction of the first axis L almost completely overlap with each other. Of course, in other embodiments, the second direction may be other directions forming an angle with the first axis L, for example, the second direction forms an angle of 60 degrees with the first axis L.

In other embodiments, the elastic member may be a pressure spring, and the movable clamp member is held in a position closer to the other clamp member under an expanding restoring force of the pressure spring.

In other embodiments, the elastic member may be a member made of an elastic material or a compressible material, such as silicone or rubber.

In other embodiments, the movable clamping member may be configured as a swing arm member, where the swing center of the swing arm member is parallel to the axis, and the clamping portion is a swing end of the swing arm member.

Finally, it should be emphasized that the foregoing description is merely illustrative of the preferred embodiments of the utility model, and that various changes and modifications can be made by those skilled in the art without departing from the spirit and principles of the utility model, and any such modifications, equivalents, improvements, etc. are intended to be included within the scope of the utility model.

Claims (10)

1. The welding equipment for the current collecting disc comprises a welding gun and a clamp, wherein a battery placing position is arranged on the clamp, and the welding gun is arranged towards the battery placing position;

the method is characterized in that:

the clamp comprises a rotating structure, and the rotating structure can integrally rotate around a first axle center;

the rotating structure comprises two clamping parts which are oppositely arranged in a second direction, an included angle is formed between the second direction and the axial direction of the first axle center, and the battery placement position is formed between the two clamping parts and is positioned at the first axle center;

at least one of the two clamping members is provided as a movable clamping member which is movable to change the dimension of the battery placement position in the second direction;

the rotating structure further comprises an elastic member, and the movable clamping member is kept at a position closer to the other clamping member under the action of the elastic member.

2. The current collecting tray welding apparatus according to claim 1, wherein:

the rotating structure comprises a rotating seat, the movable clamping piece comprises a clamping part and a guiding part, the guiding part is connected with the clamping part, the guiding part extends along the second direction, and the clamping part is opposite to the battery placing position;

the rotating seat is provided with a guide channel, and the guide part is matched with the guide channel to limit the movement freedom degree of the movable clamping piece in the second direction.

3. The current collecting tray welding apparatus according to claim 2, wherein:

the rotating seat is provided with a sliding groove extending along the second direction;

the movable clamping piece comprises a sliding part, the sliding part is connected with the clamping part, the sliding part is in sliding fit with the sliding groove along the second direction, and the elastic piece is arranged in the sliding groove;

the elastic piece is pulled between the movable clamping piece and the rotating seat, or the two clamping parts are the movable clamping piece, and the elastic piece is pulled between the two sliding parts;

the movable clamp is held in a position closer to the other clamp member by a contraction restoring force of the elastic member.

4. A current collecting tray welding apparatus according to claim 3, wherein:

the rotating seat comprises a bottom and two side parts oppositely arranged in the second direction;

the two clamping parts are the movable clamping parts, and the two movable clamping parts are arranged between the two side parts;

the chute is arranged at the bottom, and the guide channel is arranged on the side part.

5. The current collecting tray welding apparatus according to any one of claims 1 to 4, wherein:

the fixture further comprises a fixing seat, a driving unit and a gear, wherein the driving unit is arranged on the fixing seat and drives the gear;

the rotating structure comprises a gear ring arranged on the periphery of the rotating structure;

the rotating structure is connected to the fixing base in a rotating mode around the first axis, and the gear is meshed with the gear ring.

6. The current collecting tray welding apparatus according to claim 5, wherein:

and the fixed seat is provided with an arc track matched with the gear ring.

7. The current collecting tray welding apparatus according to any one of claims 1 to 4, wherein:

the battery placement position is communicated along the axial direction;

and the two welding guns are respectively arranged on two opposite sides of the battery placing position in the axial direction.

8. The current collecting tray welding apparatus according to any one of claims 1 to 4, wherein:

comprising at least one of the following:

the welding gun can be adjusted along the axial direction;

the pitch angle of the welding gun can be adjusted;

the horizontal angle of the welding gun is adjustable.

9. The current collecting tray welding apparatus according to claim 8, wherein:

the current collecting disc welding equipment further comprises a welding gun bracket;

the fixture is provided with an adjusting groove arranged along the axial direction, and the welding gun bracket is inserted into the adjusting groove;

the welding gun is rotatably connected to the welding gun support.

10. The current collecting tray welding apparatus according to claim 9, wherein:

and the welding gun support is provided with an avoidance hole, and the avoidance hole is opposite to the end part of the battery placement position in the axial direction.