CN219094151U - Clamp equipment - Google Patents

Abstract

The embodiment of the utility model provides a fixture device, and relates to the technical field of battery welding. The fixture device comprises a frame, a welding station, a pre-clamping assembly and a clamping assembly. One side of the welding station is provided with a reference piece, a first driving mechanism of the pre-clamping assembly is used for driving a first clamping mechanism to push a first position of the battery shell so that the battery shell moves and abuts against the reference piece, preliminary clamping and positioning before welding are achieved, and a second position of the battery shell is clamped by the clamping assembly so that the inner edge of the battery shell is attached to the outer edge of the top cover. Before welding, can press from both sides tight top cap and battery case under the cooperation of clamp assembly and clamp assembly in advance, can prevent effectively that the bellied condition from appearing in the battery case, and then can avoid the gap between top cap and the casing, just also can guarantee the welding quality between battery case and the top cap.

Description

Clamp equipment

Technical Field

The utility model relates to the technical field of battery welding, in particular to clamp equipment.

Background

With the increasing decrease of fossil resources and the development of environmental protection concepts, new energy is rising worldwide, and a power battery is widely used as one of the new energy. At present, new energy power batteries are developed towards higher energy density, the battery size is also becoming larger, and the assembly and welding requirements of the power batteries are also becoming higher.

According to the research of the inventor, in the prior art, after the battery core is assembled into the shell, the top cover and the shell are required to be welded, when the battery shell and the top cover are welded in a mode of pre-spot welding and peripheral welding, the battery shell between adjacent welding points of the pre-spot welding is easy to bulge, so that gaps between the battery shell and the top cover and the shell are caused, and the subsequent welding quality is caused.

Disclosure of Invention

The utility model aims to provide a clamp device which can clamp a battery shell to prevent the battery shell from protruding, so that the subsequent welding quality is ensured.

Embodiments of the present utility model are implemented as follows:

in a first aspect, the present utility model provides a jig apparatus comprising:

a frame;

the welding station is arranged on the frame, and a reference piece is arranged on one side of the welding station;

the pre-clamping assembly comprises a first driving mechanism and a first clamping mechanism which are arranged on the frame, the first clamping mechanism is arranged on one side of the reference piece, which is close to the welding station, and the first driving mechanism is used for driving the first clamping mechanism to push the first position of the battery shell so that the battery shell moves and abuts against the reference piece;

the clamping assembly is arranged on the frame and used for clamping a second position of the battery shell, so that the inner edge of the battery shell is attached to the outer edge of the top cover.

In an alternative embodiment, the battery housing has opposite first and second sides, each for engaging an outer edge of the top cover, the first position being adjacent the reference member and the second position being on the second side.

In an alternative embodiment, the clamping assembly comprises a second clamping mechanism and a second driving mechanism, wherein the second driving mechanism is connected with the second clamping mechanism and used for driving the second clamping mechanism to be far away from or close to the reference piece, and the first clamping mechanism and the second clamping mechanism are distributed along the length direction of the battery.

In an alternative embodiment, the second clamping mechanism is provided with an elastic member on a side thereof adjacent to the reference member.

In an alternative embodiment, the elastic member is a ball plunger, and the ball of the ball plunger is located on a side of the second clamping mechanism adjacent to the reference member.

In an alternative embodiment, the elastic members are located at both ends of the second clamping mechanism in the length direction of the second clamping mechanism.

In an alternative embodiment, the fixture apparatus further comprises a dust removing mechanism provided to the frame for removing impurities generated by welding the battery case with the top cover.

In an alternative embodiment, the dust removing mechanism is located between the second clamping mechanism and the first clamping mechanism and is connected with the first clamping mechanism.

In an alternative embodiment, the fixture further comprises an upper positioning mechanism and a third driving mechanism, wherein the third driving mechanism is connected with the frame and is positioned at the bottom of the frame, and the third driving mechanism is used for driving the upper positioning mechanism to move along the length direction of the battery shell.

In an alternative embodiment, the clamp apparatus further comprises a moving mechanism, and an oil pan is disposed below the moving mechanism.

The embodiment of the utility model has the beneficial effects that: the clamp device comprises a frame, a welding station, a pre-clamping assembly and a clamping assembly, wherein a first driving mechanism of the pre-clamping assembly is used for driving a first clamping mechanism to push a first position of a battery shell to enable the battery shell to move and abut against a reference piece, preliminary clamping and positioning before welding are achieved, and the clamping assembly is used for clamping a second position of the battery shell to enable the inner edge of the battery shell to be attached to the outer edge of a top cover. Before welding, can press from both sides top cap and battery case through clamping assembly, can prevent effectively that the bellied condition from appearing in the battery case, and then can avoid the gap between top cap and the casing, just also can guarantee the welding quality between battery case and the top cap.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of a fixture device according to an embodiment of the present utility model at a first view angle;

fig. 2 is a schematic structural diagram of a fixture device according to an embodiment of the present utility model at a second view angle;

fig. 3 is a schematic diagram of a clamping assembly, a pre-clamping assembly and a dust removing mechanism according to an embodiment of the present utility model.

Icon 1-fixture device; 10-a frame; 11-a welding station; 20-a clamping assembly; 21-a reference member; 22-a second clamping mechanism; 221-an elastic member; 23-a second drive mechanism; 30-a pre-clamping assembly; 31-a first clamping mechanism; 32-a first drive mechanism; 40-a dust removing mechanism; 50-an upper positioning mechanism; 60-a third drive mechanism; 70-drip pan.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, are merely for convenience of describing the present utility model and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal," "vertical," and the like do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "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; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

The specific structure of the clamp device and the corresponding technical effects thereof provided by the embodiment of the utility model are described in detail below with reference to the accompanying drawings.

Referring to fig. 1-3, a fixture apparatus 1 according to an embodiment of the present utility model includes a frame 10, a pre-clamping assembly 30, a welding station 11, and a clamping assembly 20.

Wherein the welding station 11 is provided to the frame 10, and one side of the welding station 11 is provided with a reference member 21. It will be appreciated that the battery housing and top cover are welded at the welding station 11. The pre-clamping assembly 30 comprises a first driving mechanism 32 and a first clamping mechanism 31 which are arranged on the frame 10, the first clamping mechanism 31 is arranged on one side of the reference piece 21 close to the welding station 11, and the first driving mechanism 32 is used for driving the first clamping mechanism 31 to push the first position of the battery shell so as to enable the battery shell to move and abut against the reference piece 21. It will be appreciated that during the welding process, the battery housing is pre-clamped by the first clamping mechanism 31 in advance, and the battery housing is brought into a preliminary positioning action in cooperation with the reference member 21.

The clamping assembly 20 is disposed on the frame 10, and the clamping assembly 20 is used for clamping the second position of the battery case, so that the inner edge of the battery case fits the outer edge of the top cover.

It can be appreciated that before welding, the battery shell can be pre-clamped by the pre-clamping assembly 30, so that it is easy to understand that the first clamping mechanism 31 can exhaust gas in the battery shell in the pre-clamping process, and after the battery shell abuts against the reference piece 21, the top cover and the battery shell are clamped by the clamping assembly 20, so that the situation that the battery shell is raised can be effectively prevented, and further, gaps between the top cover and the shell can be avoided, and the welding quality between the battery shell and the top cover can be ensured.

In this embodiment, the clamping assembly 20 is used to clamp the long side of the battery case. It will be appreciated that the long side of the battery housing is the longer side thereof and that this side is capable of conforming to the outer edge of the top cover under the influence of the clamping assembly 20. Of course, in the specific clamping case, the clamping assembly 20 is not limited to being used to clamp the long sides of the battery case.

It should be noted that the battery case has a first side and a second side opposite to each other, and the first side and the second side are both used for being attached to the outer edge of the top cover. The first position is adjacent to the reference member and the second position is on the second side. It will be readily appreciated that when the battery housing is urged into abutment with the datum 21 by the first clamping mechanism 31, the first side of the battery housing is adjacent the datum opposite the second side and the first side is now in abutment with the datum, the second position being on the second side, i.e. the clamping assembly 20 clamping the second position on the second side of the battery housing.

Further, in the present embodiment, the clamping assembly 20 includes a second clamping mechanism 22 and a second driving mechanism 23, and the second driving mechanism 23 is connected to the second clamping mechanism 22 for driving the second clamping mechanism 22 away from or towards the reference member 21, wherein the second driving mechanism 23 is connected to the frame 10. The first clamping mechanism 31 and the second clamping mechanism 22 are arranged along the length direction of the battery. Specifically, referring to fig. 1, the first clamping mechanism 31 is located below the second clamping mechanism 22.

The first driving mechanism 32 is used to drive the first clamping mechanism 31 away from or towards the reference member 21. And the first clamping mechanism 31 is located below the second clamping mechanism 22. The first position is a middle region on the second side of the battery case, and the first clamping mechanism 31 is used for pre-clamping the middle region of the battery case in the height direction. That is, when pre-clamping is performed, the first clamping mechanism 31 can be abutted against the middle area of the battery housing in the height direction, so that the gas of the battery housing can be discharged, the battery housing is initially positioned by being matched with the reference piece 21, and the second position above the second side of the battery housing is clamped by the second clamping mechanism 22 so as to clamp the inner edges of the battery housing and the top cover, so that the situation that the battery housing is raised is prevented.

It should be noted that, the adjacent sides of the battery case are generally connected through arc chamfer transition, so as to ensure that the arc transition chamfer of the battery case is not deformed when the long side of the battery case is clamped, in this embodiment, the length of the second clamping mechanism 22 is smaller than that of the long side of the battery case, so as to ensure that the arc chamfer of the battery case is not deformed when the second clamping mechanism 22 is clamped with the reference member 21. And the smooth welding of the top cover and the battery shell can be ensured.

After the battery case and the top cover are welded smoothly, the second driving mechanism 23 can drive the second clamping mechanism 22 to be far away from the reference piece 21 so as to loosen the battery which is welded successfully. And further replace the other battery case to be welded.

The reference member 21 is a flat surface on one side for holding the battery case.

Specifically, in the present embodiment, the second driving mechanism 23 is a hydraulic cylinder, and it is understood that the movable end of the hydraulic cylinder is connected to the second clamping mechanism 22, so as to drive the second clamping mechanism 22 to approach or separate from the reference member 21.

Further, the second clamping mechanism 22 is provided with an elastic member 221 on a side close to the reference member 21. It is easy to understand that, the side of the second clamping mechanism 22 near the reference member 21 is used for clamping the battery case, so that the side will be in contact with the battery case, after the elastic member 221 is disposed on the side of the second clamping mechanism 22 near the reference member 21, the elastic member 221 can play a certain role in buffering when clamping the long side of the battery case, so as to effectively avoid the clamped battery case from being scratched, in this embodiment, in the length direction of the second clamping mechanism 22, the elastic member 221 is disposed at two ends of the second clamping mechanism 22, that is, in the case that the second clamping mechanism 22 clamps the long side of the battery case, the two ends of the second clamping mechanism 22 in the length direction can pass through the elastic member 221, and it should be noted that the length direction of the second clamping mechanism 22 is perpendicular to the length direction of the battery case.

Of course, in other embodiments, the elastic member 221 is not limited to be disposed at two ends of the second clamping mechanism 22, and the elastic member 221 may be disposed at other positions of the second clamping mechanism 22.

Specifically, in the present embodiment, the elastic member 221 is a ball plunger, and the ball of the ball plunger is located on the side of the second clamping mechanism 22 near the reference member 21, and exposes the side of the second clamping mechanism 22 near the reference member 21. It will be appreciated that the side of the second clamping mechanism 22 adjacent the datum member 21 is provided with a mounting groove for mounting a ball plunger, the ball plunger being mounted in the mounting groove and the ball of the ball plunger being exposed from the side of the second clamping mechanism 22 adjacent the datum member 21. Therefore, when the battery shell is clamped, the ball head of the ball head plunger is contacted with the battery shell, and the ball head plunger has elasticity, so that a certain buffer effect is given to the battery shell in the clamping process, and the battery shell can be prevented from being scratched in the clamping process.

Of course, in order to further ensure that the battery case is not scratched when clamped by the second clamping mechanism 22 and the reference member 21, a corresponding elastic member 221 may be provided on the reference member 21 to prevent the battery case from being scratched when clamped by cooperation with the second clamping mechanism 22.

Of course, in other embodiments, the elastic member 221 is not limited to a ball plunger, but may be other elastic components, so long as the second clamping mechanism 22 can clamp the battery case and avoid scratching the battery case, and the specific structure of the elastic member 221 is not limited herein.

When the first clamping mechanism 31 performs the pre-clamping, the first clamping mechanism 31 clamps a substantially middle region of the battery case in the longitudinal direction of the battery case. The first clamping mechanism 31 has a length smaller than the length of the long side of the battery case, as in the second clamping mechanism 22.

In this embodiment, the first driving mechanism 32 is also a hydraulic cylinder, and a movable end of the hydraulic cylinder is connected to the first clamping mechanism 31 to drive the first clamping mechanism 31 to approach or separate from the reference member 21.

Further, the fixture device 1 further includes a dust removing mechanism 40 provided with the frame 10, for removing impurities generated when the battery housing is welded to the top cover, and it can be understood that impurities, such as dust caused by welding, can be generated in the process of welding the top cover after the fixture device 1 clamps the battery housing, and the dust can be removed by the dust removing mechanism 40, so that the fixture device 1 is prevented from accumulating dust, and further, the subsequent welding quality is ensured.

Specifically, in this embodiment, the dust removing mechanism 40 is an air knife, it can be understood that the air blown by the air knife can blow the impurities generated in the welding process, so as to avoid the impurities accumulating on the fixture, and in this embodiment, in the height direction, the dust removing mechanism 40 is located between the second clamping mechanism 22 and the first clamping mechanism 31 and connected with the first clamping mechanism 31, and can effectively remove the impurities dropped when the battery case is welded with the top cover.

Of course, in other embodiments, the dust removing mechanism 40 may be disposed at other locations, so long as the impurities that are dropped when the battery case is welded to the top cover can be removed.

Of course, the dust removing mechanism 40 is not limited to the air knife, and may be other structures capable of removing foreign matters. It is not limited herein.

Further, the fixture further includes an upper positioning mechanism 50 and a third driving mechanism 60, the third driving mechanism 60 is connected with the frame 10 and is located at the bottom of the frame 10, the third driving mechanism 60 is used for driving the upper positioning mechanism 50 to move along the length direction of the battery housing, that is, can drive the upper positioning mechanism 50 to move up and down, it should be noted that, during welding, the upper positioning mechanism 50 can drive the battery housing to move up in the upward movement process, so that the upper positioning mechanism 50 can be driven by the third driving mechanism 60 to move up in the length direction of the battery housing, so that the battery housing is driven by the upper positioning mechanism 50 to clamp with the top cover located above the battery housing, at this time, the outer edge of the top cover is covered on the battery housing, and then the first clamping mechanism 31 is driven by the first driving mechanism 32 to pre-clamp the battery housing in the arrangement direction of the first driving mechanism 32 and the reference piece 21, and finally the second clamping mechanism 22 is driven by the second driving mechanism 23 to move in the direction close to the reference piece 21, so that the inner edge of the top cover is attached to the outer edge of the top cover. And then can effectually guarantee that the bellied condition can not appear in the battery case, and then guarantee the welding quality between battery case and the top cap.

Further, at least one of the second driving mechanism 23, the first driving mechanism 32, and the third driving mechanism 60 is a hydraulic cylinder. In the present embodiment, the second driving mechanism 23, the first driving mechanism 32, and the third driving mechanism 60 are all hydraulic cylinders. Of course, in other embodiments, the second driving mechanism 23, the first driving mechanism 32 and the third driving mechanism 60 may be other driving devices, as long as the second clamping mechanism 22, the first clamping mechanism 31 and the upper positioning mechanism 50 can be driven to move respectively.

Further, the jig apparatus 1 further includes a moving mechanism, and the oil receiving pan 70 is provided below the moving mechanism, and it is understood that the oil receiving pan 70 can prevent the moving mechanism from causing a problem that the oil scale drops to cause difficult cleaning in the process of repeated use. Here, the moving mechanism is a component that moves on the frame 10 and uses oil, and the mechanism is not particularly limited.

In this embodiment, two clamping assemblies 20, two welding stations 11, two pre-clamping assemblies 30, two third driving mechanisms 60 and two upper positioning mechanisms 50 are disposed on the frame 10. It is easy to understand that two battery cases can be clamped simultaneously on the clamp apparatus 1 provided in the present embodiment. Of course, in other embodiments, the number of the upper clamping assemblies 20, the pre-clamping assemblies 30, the third driving mechanism 60 and the upper positioning mechanism 50 of each frame 10 may be other, and the number may be set according to specific requirements.

In summary, the fixture apparatus 1 provided in the embodiment of the utility model includes a frame 10, a welding station 11, a clamping assembly 20, a pre-clamping assembly 30, a third driving mechanism 60 and an upper positioning mechanism 50. During welding, the upper positioning mechanism 50 can drive the battery shell to move upwards in the upward movement process, so that the upper positioning mechanism 50 can be driven to move in the length direction of the battery shell through the third driving mechanism 60, the battery shell is driven to clamp with the top cover above the battery shell through the upper positioning mechanism 50, the outer edge of the top cover is covered on the battery shell, the first clamping mechanism 31 is driven to push the first position of the battery shell through the first driving mechanism 32 so as to enable the battery shell to abut against the reference piece 21, pre-clamping is carried out, the second clamping mechanism 22 is driven to move in the direction close to the reference piece 21 through the second driving mechanism 23, the inner edge of the battery shell is attached to the outer edge of the top cover, the battery shell is clamped with the top cover, and therefore the situation that the protrusion of the battery shell cannot occur can be effectively guaranteed, and welding quality between the battery shell and the top cover is guaranteed.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (10)

1. A jig apparatus, comprising:

a frame (10);

the welding station (11), the welding station (11) is arranged on the frame, and a reference piece (21) is arranged on one side of the welding station (11);

the pre-clamping assembly (30), the pre-clamping assembly (30) comprises a first driving mechanism (32) and a first clamping mechanism (31) which are arranged on the frame (10), the first clamping mechanism (31) is arranged on one side, close to the welding station (11), of the reference piece (21), and the first driving mechanism (32) is used for driving the first clamping mechanism (31) to push a first position of a battery shell so that the battery shell moves and abuts against the reference piece (21);

the clamping assembly (20), the clamping assembly (20) set up in frame (10), the second position that is used for pressing from both sides tight battery case of clamping assembly (20), so that the interior border laminating top cap's of battery case outward flange.

2. The jig apparatus of claim 1, wherein:

the battery shell is provided with a first side and a second side which are opposite, the first side and the second side are both used for being attached to the outer edge of the top cover, the first position is close to the reference piece (21), and the second position is located on the second side.

3. The jig apparatus of claim 1, wherein:

the clamping assembly (20) comprises a second clamping mechanism (22) and a second driving mechanism (23), wherein the second driving mechanism (23) is connected with the second clamping mechanism (22) and is used for driving the second clamping mechanism (22) to be far away from or close to the reference piece (21), and the first clamping mechanism (31) and the second clamping mechanism (22) are arranged along the length direction of the battery.

4. A clamp apparatus according to claim 3, characterized in that:

an elastic piece (221) is arranged on one side, close to the reference piece (21), of the second clamping mechanism (22).

5. The jig apparatus of claim 4, wherein:

the elastic piece (221) is a ball plunger, and a ball of the ball plunger is located on one side, close to the reference piece (21), of the second clamping mechanism (22).

6. The jig apparatus of claim 4, wherein:

the elastic members (221) are located at both ends of the second clamping mechanism (22) in the longitudinal direction of the second clamping mechanism (22).

7. A clamp apparatus according to claim 3, characterized in that:

the fixture device further comprises a dust removing mechanism (40) arranged on the frame (10) and used for removing impurities generated by welding the battery shell and the top cover.

8. The jig apparatus of claim 7, wherein:

the dust removing mechanism (40) is located between the second clamping mechanism (22) and the first clamping mechanism (31) and is connected with the first clamping mechanism (31).

9. A clamp apparatus according to claim 3, characterized in that:

the fixture further comprises an upper positioning mechanism (50) and a third driving mechanism (60), wherein the third driving mechanism (60) is connected with the frame (10) and is positioned at the bottom of the frame (10), and the third driving mechanism (60) is used for driving the upper positioning mechanism (50) to move along the length direction of the battery shell.

10. The jig apparatus of claim 1, wherein:

the clamp device further comprises a moving mechanism, and an oil receiving disc (70) is arranged below the moving mechanism.

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