CN216028930U

CN216028930U - Welding tool

Info

Publication number: CN216028930U
Application number: CN202122299193.3U
Authority: CN
Inventors: 刘鹏鹏; 张建龙; 段洋; 吴望雄; 尹华林
Original assignee: Yinlong New Energy Co Ltd
Current assignee: Yinlong New Energy Co Ltd
Priority date: 2021-09-22
Filing date: 2021-09-22
Publication date: 2022-03-15
Anticipated expiration: 2031-09-22

Abstract

The application relates to a welding frock includes: a base plate; the transverse positioning mechanism comprises a fixed side plate and a movable side plate which are oppositely arranged along a first direction, the fixed side plate is fixedly connected with the bottom plate, and the movable side plate can move along the first direction relative to the fixed side plate; the longitudinal positioning mechanism comprises a fixed positive plate and a movable positive plate which are oppositely arranged along a second direction, the fixed positive plate is fixedly connected with the bottom plate, the movable positive plate can move relative to the fixed positive plate along the second direction, the fixed side plate, the movable side plate, the fixed positive plate, the movable positive plate and the bottom plate enclose a containing cavity for containing a battery, and the first direction and the second direction are intersected; and the pressing strip is arranged in the accommodating cavity and abutted to the peripheral side of the battery, and is arranged corresponding to the welding position of one side of the battery, which is far away from the bottom plate. The welding tool can accurately position the battery, so that the welding quality is guaranteed.

Description

Welding tool

Technical Field

The application relates to the technical field of battery welding, in particular to a welding tool.

Background

At present, lithium ion square shell power battery has extensive application prospect in the electric automobile industry, lithium ion power battery is inside mainly to contain organic electrolyte, special diaphragm, mainly contain explosion-proof valve, utmost point post, safety helmet, notes liquid hole etc. on the apron, in the lithium ion power battery production process, the sealing welding requirement of casing and apron is very high, its welding quality directly influences the sealed degree of battery, poor welding can lead to the battery weeping, the lithium of separating, the battery outward appearance scheduling problem that does not reach standard, the quality stability of battery welding can influence the uniformity and the security of battery equipment system.

When the casing and the lid of battery welded, fixed the battery through the frock, if the battery location is not accurate, can cause welding equipment can't aim at the battery when welding operation and need welded gap, influence welded quality.

SUMMERY OF THE UTILITY MODEL

An object of this application is to provide a welding frock can carry out accurate location to the battery to guarantee the welding quality.

To this end, in a first aspect, an embodiment of the present application provides a welding tool, including: a base plate; the transverse positioning mechanism comprises a fixed side plate and a movable side plate which are oppositely arranged along a first direction, the fixed side plate is fixedly connected with the bottom plate, and the movable side plate can move along the first direction relative to the fixed side plate; the longitudinal positioning mechanism comprises a fixed positive plate and a movable positive plate which are oppositely arranged along a second direction, the fixed positive plate is fixedly connected with the bottom plate, the movable positive plate can move relative to the fixed positive plate along the second direction, the fixed side plate, the movable side plate, the fixed positive plate, the movable positive plate and the bottom plate enclose a containing cavity for containing a battery, and the first direction and the second direction are intersected; and the pressing strip is arranged in the accommodating cavity and abutted to the peripheral side of the battery, and is arranged corresponding to the welding position of one side of the battery, which is far away from the bottom plate.

In a possible implementation manner, the pressing strip includes a first pressing strip connected to the movable side plate and a second pressing strip connected to the movable front plate, the first pressing strip is disposed on one side of the movable side plate away from the bottom plate, and the second pressing strip is disposed on one side of the movable front plate away from the bottom plate.

In a possible implementation manner, the pressing strip further includes a third pressing strip connected to the fixed side plate and a fourth pressing strip connected to the fixed positive plate, the third pressing strip is disposed on one side of the fixed side plate away from the bottom plate, and the fourth pressing strip is disposed on one side of the fixed positive plate away from the bottom plate.

In a possible implementation manner, the length dimension of the first pressing strip along the second direction is smaller than the distance between the fixed positive plate and the movable positive plate, and the length dimension of the second pressing strip along the first direction is smaller than the distance between the fixed side plate and the movable side plate;

the third pressing strip and the first pressing strip are the same in size, and the fourth pressing strip and the second pressing strip are the same in size.

In a possible implementation manner, the length dimension of the first pressing strip along the second direction is smaller than the distance between the second pressing strip and the fourth pressing strip, and the length dimension of the second pressing strip along the first direction is smaller than the distance between the first pressing strip and the third pressing strip.

In a possible implementation manner, the transverse positioning mechanism further includes a first driving mechanism connected to the bottom plate, and an output end of the first driving mechanism is connected to one side of the movable side plate, which is far away from the fixed side plate, so as to drive the movable side plate to be movable along the first direction relative to the fixed side plate.

In a possible implementation manner, the transverse positioning mechanism further includes a first mounting seat disposed between the first driving mechanism and the bottom plate, a first elongated hole extending along the first direction is disposed on the first mounting seat, and a plurality of first fixing holes are disposed on the bottom plate and spaced from each other corresponding to the first elongated hole.

In a possible implementation manner, the longitudinal positioning mechanism further includes a second driving mechanism connected to the bottom plate, and an output end of the second driving mechanism is connected to a side of the movable front plate away from the fixed front plate, so as to drive the movable front plate to be movable in the second direction relative to the fixed front plate.

In a possible implementation manner, the longitudinal positioning mechanism further includes a second mounting seat disposed between the second driving mechanism and the bottom plate, a second elongated hole extending along the second direction is disposed on the second mounting seat, and a plurality of second fixing holes are disposed on the bottom plate and spaced from each other corresponding to the second elongated hole.

In a possible implementation manner, the transverse positioning mechanism further comprises a first reinforcing rib plate arranged between the fixed side plate and the bottom plate, and the longitudinal positioning mechanism further comprises a second reinforcing rib plate arranged between the fixed front plate and the bottom plate.

According to the welding frock that this application embodiment provided, through arranging fixed positive board in with the good battery of prewelding, the activity positive board, fixed curb plate and activity curb plate enclose synthetic holding the intracavity, remove activity positive board and activity curb plate, accomplish the location to the battery, guarantee the location effect to the battery, the layering is located the outside of battery and corresponds and lid welded position, compress tightly between casing and the lid to the battery, guarantee that the size of welding seam is even, then send into welding equipment with the frock and the good battery of fixing and weld in, prevent to weld inclined to one side the condition, can guarantee welded quality.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts. In addition, in the drawings, like parts are denoted by like reference numerals, and the drawings are not drawn to actual scale.

Fig. 1 shows a schematic perspective structure of a welding tool provided in an embodiment of the present application;

FIG. 2 illustrates a schematic top view of the welding tool shown in FIG. 1;

FIG. 3 illustrates a rear view of the welding tool shown in FIG. 1;

FIG. 4 is a schematic diagram illustrating a right side view of the welding tool shown in FIG. 1;

description of reference numerals:

1. a base plate; x, a first direction; y, a second direction; a. a battery;

2. a transverse positioning mechanism; 21. fixing the side plate; 22. a movable side plate; 23. a first drive mechanism; 24. a first mounting seat; 25. a first elongated hole; 26. a first reinforcing rib plate;

3. a longitudinal positioning mechanism; 31. fixing the positive plate; 32. a movable front plate; 33. a second drive mechanism; 34. a second mounting seat; 35. a second elongated hole; 36. a second reinforcing rib plate;

4. layering; 41. a first compression bar; 42. a second pressing strip; 43. a third pressing strip; 44. and a fourth bead.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

Fig. 1 shows a schematic perspective structure of a welding tool provided in an embodiment of the present application; FIG. 2 illustrates a schematic top view of the welding tool shown in FIG. 1; FIG. 3 illustrates a rear view of the welding tool shown in FIG. 1; fig. 4 shows a right-side structural schematic view of the welding tool shown in fig. 1.

As shown in fig. 1 to 4, an embodiment of the present application provides a welding tool, including: the device comprises a bottom plate 1, a transverse positioning mechanism 2, a longitudinal positioning mechanism 3 and a pressing strip 4.

The transverse positioning mechanism 2 comprises a fixed side plate 21 and a movable side plate 22 which are oppositely arranged along the first direction X, the fixed side plate 21 is fixedly connected with the bottom plate 1, and the movable side plate 22 can move relative to the fixed side plate 21 along the first direction X.

The longitudinal positioning mechanism 3 comprises a fixed positive plate 31 and a movable positive plate 32 which are oppositely arranged along the second direction Y, the fixed positive plate 31 is fixedly connected with the bottom plate 1, the movable positive plate 32 can move relative to the fixed positive plate 31 along the second direction Y, wherein the fixed side plate 21, the movable side plate 22, the fixed positive plate 31, the movable positive plate 32 and the bottom plate 1 enclose a containing cavity for containing the battery a, and the first direction X is intersected with the second direction Y.

Optionally, the battery a has a rectangular parallelepiped structure. The first direction X is the length direction of the battery a, the second direction Y is the width direction of the battery a, the fixed positive plate 31 and the fixed side plate 21 form an included angle of 90 degrees, the side where the long side of the battery a is located is ensured to be in contact with the fixed positive plate 31, and the side where the short side of the battery a is located is in contact with the fixed side plate 21.

The hold-down strip 4 is disposed in the accommodating cavity and abutted to the outer peripheral side of the battery a, and is disposed corresponding to the welding position of the battery a on the side far away from the base plate 1.

Optionally, the battery a includes a casing and a cover covering the casing, and the cover is located on a side of the casing away from the bottom plate. Specifically, a groove is formed in one side, away from the bottom plate, of the shell, and the cover body is accommodated in the groove. The welding position refers to a welding seam between the shell and the cover body, and the welding seam is located in a horizontal plane. The layering 4 sets up in holding the intracavity and butt to the periphery side of casing, and sets up corresponding to the welding position, can guarantee that the welding seam is even.

Alternatively, the height of the bead 4 needs to be greater than or equal to one fifth of the height of the battery a so that the bead 4 is in partial contact with the outer side of the battery a, thereby securing the fixing effect of the battery a.

The application provides a welding frock, through arranging fixed positive plate 31 in with battery a that prewelds, the positive plate 32 of activity, fixed curb plate 21 and activity curb plate 22 enclose synthetic holding intracavity, remove positive plate 32 of activity and activity curb plate 22, accomplish the location to battery a, guarantee the location effect to battery a, layering 4 is located the battery a outside and corresponds the welding position of casing and lid, compress tightly between battery a and the lid, guarantee that the size of welding seam is even, then send into welding equipment with frock together with fixed battery a and weld, prevent to weld the inclined to one side condition, can guarantee the welded quality.

Optionally, the pressing strip 4 includes a first pressing strip 41 connected to the movable side plate 22 and a second pressing strip 42 connected to the movable front plate 32, the first pressing strip 41 is disposed on one side of the movable side plate 22 away from the bottom plate 1, and the second pressing strip 42 is disposed on one side of the movable front plate 32 away from the bottom plate 1.

Specifically, two opposite side edges of the battery a are respectively abutted to the fixed positive plate 31 and the second pressing strip 42, the other two opposite side edges are respectively abutted to the fixed side plate 21 and the first pressing strip 41, the contact area between the fixed positive plate 31 and the fixed side plate 21 and the battery a is increased, the battery a can be effectively fixed, and the first pressing strip 41 and the second pressing strip 42 respectively compress the welding position of the battery a along the first direction X and the second direction Y.

Further, the pressing strip 4 further comprises a third pressing strip 43 connected with the fixed side plate 21 and a fourth pressing strip 44 connected with the fixed positive plate 31, the third pressing strip 43 is arranged on one side of the fixed side plate 21 far away from the bottom plate 1, and the fourth pressing strip 44 is arranged on one side of the fixed positive plate 31 far away from the bottom plate 1.

Specifically, the periphery of the welding position of the battery a is respectively abutted to the first pressing strip 41, the second pressing strip 42, the third pressing strip 43 and the fourth pressing strip 44, so that the welding seam between the battery a and the cover body is ensured to be uniform while the battery a is positioned.

Further, the length dimension of the first pressing strip 41 along the second direction Y is smaller than the distance between the fixed front plate 31 and the movable front plate 32, and the length dimension of the second pressing strip 42 along the first direction X is smaller than the distance between the fixed side plate 21 and the movable side plate 22; the third bead 43 has the same size as the first bead 41, and the fourth bead 44 has the same size as the second bead 42.

Therefore, the first pressing strip 41, the second pressing strip 42, the third pressing strip 43 and the fourth pressing strip 44 are all located at the welding position of the battery a, so that the first pressing strip 41, the second pressing strip 42, the third pressing strip 43 and the fourth pressing strip 44 can be guaranteed to be located in the containing cavity and abut against the four side edges of the battery a respectively.

Further, the length dimension of the first pressing strip 41 along the second direction Y is smaller than the distance between the second pressing strip 42 and the fourth pressing strip 44, and the length dimension of the second pressing strip 42 along the first direction X is smaller than the distance between the first pressing strip 41 and the third pressing strip 43.

Thus, it can be ensured that the second bead 42 and the fourth bead 44 do not interfere with the movement of the first bead 41 in the second direction Y, and the first bead 41 and the third bead 43 do not interfere with the movement of the second bead 42 in the first direction X.

Optionally, the transverse positioning mechanism 2 further includes a first driving mechanism 23 connected to the bottom plate 1, and an output end of the first driving mechanism 23 is connected to a side of the movable side plate 22 away from the fixed side plate 21, so as to drive the movable side plate 22 to be movable along the first direction X relative to the fixed side plate 21.

The first driving mechanism 23 may be any one of an air cylinder, a hydraulic cylinder and an electric push rod, and the air cylinder is selected in this embodiment.

Further, the transverse positioning mechanism 2 further includes a first mounting seat 24 disposed between the first driving mechanism 23 and the bottom plate 1, a first elongated hole 25 extending along the first direction X is disposed on the first mounting seat 24, and a plurality of first fixing holes are disposed on the bottom plate 1 corresponding to the first elongated hole 25 and spaced apart from each other.

The first mounting seat 24 can be adjusted in the first direction X according to the length of the battery a in the first direction X, and the first mounting seat 24 is bolted to the base plate 1.

Optionally, the longitudinal positioning mechanism 3 further includes a second driving mechanism 33 connected to the bottom plate 1, and an output end of the second driving mechanism 33 is connected to a side of the movable front plate 32 away from the fixed front plate 31 to drive the movable front plate 32 to be movable in the second direction Y relative to the fixed front plate 31.

The second driving mechanism 33 may be any one of an air cylinder, a hydraulic cylinder and an electric push rod, and the air cylinder is selected in this embodiment.

Further, the longitudinal positioning mechanism 3 further includes a second mounting seat 34 disposed between the second driving mechanism 33 and the bottom plate 1, a second elongated hole 35 extending along the second direction Y is disposed on the second mounting seat 34, and a plurality of second fixing holes are disposed on the bottom plate 1 and spaced from each other corresponding to the second elongated hole 35.

The second mounting seat 34 can be adjusted in the second direction Y according to the length of the battery a in the second direction Y, and the second mounting seat 34 is bolted to the base plate 1.

Optionally, the transverse positioning mechanism 2 further includes a first reinforcing rib plate 26 disposed between the fixed side plate 21 and the bottom plate 1, and the longitudinal positioning mechanism 3 further includes a second reinforcing rib plate 36 disposed between the fixed front plate 31 and the bottom plate 1.

First strengthening rib and second strengthening rib all select the right triangle shape for use, have stronger stability, guarantee the fixed effect of fixed curb plate 21 and fixed positive board 31, and the quantity of first strengthening rib and second strengthening rib is more than or equal to one, and is decided according to the length of fixed curb plate 21 and fixed positive board 31.

The welding process for battery a is as follows:

prewelding: the core of battery a is first placed into the housing of battery a,

then, the cover body of the battery a is positioned on the shell of the battery a, ten-point pre-welding is carried out on the cover plate of the battery a and the cover body of the battery a, four points are welded on two long sides, and 1 point is welded on two short sides.

And (3) full welding: the method comprises the steps of placing a pre-welded battery a in a containing cavity defined by a fixed front plate 31, a movable front plate 32, a fixed side plate 21 and a movable side plate 22, moving the movable front plate 32 and the movable side plate 22 to complete positioning of the battery a and guarantee positioning effect of the battery a, enabling a pressing strip 4 to be located on the outer side of the battery a and correspond to welding positions of a shell and a cover body, pressing the shell and the cover body of the battery a tightly to guarantee that welding seams are uniform in size, then sending a tool and the fixed battery a into welding equipment to be welded to prevent welding deviation, guaranteeing welding quality, detecting a welding gap before welding, installing a detection probe on the welding equipment to enable a welding gun to run along the same track, and if the gap is too large, indicating that the battery a is unqualified and cannot be welded, and withdrawing the battery a.

It should be noted that references in the specification to "one embodiment," "an example embodiment," "some embodiments," etc., indicate that the embodiment described may include a particular feature, structure, or characteristic, but every embodiment may not necessarily include the particular feature, structure, or characteristic. Moreover, such phrases are not necessarily referring to the same embodiment. Further, when a particular feature, structure, or characteristic is described in connection with an embodiment, it is within the knowledge of one skilled in the art to effect such feature, structure, or characteristic in connection with other embodiments whether or not explicitly described.

Furthermore, spatially relative terms, such as "below," "lower," "above," "upper," and the like, may be used herein for ease of description to describe one element or feature's illustrated relationship to another element or feature. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. The device may have other orientations (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly as well.

It is noted that, in this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.

Claims

1. The utility model provides a welding frock, its characterized in that includes:

a base plate;

the transverse positioning mechanism comprises a fixed side plate and a movable side plate which are oppositely arranged along a first direction, the fixed side plate is fixedly connected with the bottom plate, and the movable side plate can move along the first direction relative to the fixed side plate;

the longitudinal positioning mechanism comprises a fixed front plate and a movable front plate which are oppositely arranged along a second direction, the fixed front plate is fixedly connected with the bottom plate, the movable front plate can move relative to the fixed front plate along the second direction, the fixed side plate, the movable side plate, the fixed front plate, the movable front plate and the bottom plate enclose an accommodating cavity for accommodating a battery, and the first direction and the second direction are arranged in a crossed manner;

and the pressing strip is arranged in the accommodating cavity and abutted to the outer peripheral side of the battery, and is arranged corresponding to the welding position of the battery far away from one side of the bottom plate.

2. The welding tool of claim 1, wherein the pressing strip comprises a first pressing strip connected with the movable side plate and a second pressing strip connected with the movable front plate, the first pressing strip is arranged on one side of the movable side plate, which is far away from the bottom plate, and the second pressing strip is arranged on one side of the movable front plate, which is far away from the bottom plate.

3. The welding tool of claim 2, wherein the hold-down strip further comprises a third hold-down strip connected to the fixed side plate and a fourth hold-down strip connected to the fixed front plate, the third hold-down strip is disposed on one side of the fixed side plate away from the bottom plate, and the fourth hold-down strip is disposed on one side of the fixed front plate away from the bottom plate.

4. The welding tool according to claim 3, wherein the length of the first pressing strip in the second direction is smaller than the distance between the fixed front plate and the movable front plate, and the length of the second pressing strip in the first direction is smaller than the distance between the fixed side plate and the movable side plate;

5. The welding tool of claim 4, wherein a length dimension of the first bead along the second direction is less than a distance between the second bead and the fourth bead, and a length dimension of the second bead along the first direction is less than a distance between the first bead and the third bead.

6. The welding tooling of claim 1, wherein the transverse positioning mechanism further comprises a first driving mechanism connected to the bottom plate, and an output end of the first driving mechanism is connected to a side of the movable side plate away from the fixed side plate to drive the movable side plate to be movable relative to the fixed side plate along the first direction.

7. The welding tool of claim 6, wherein the transverse positioning mechanism further comprises a first mounting seat disposed between the first driving mechanism and the bottom plate, the first mounting seat is provided with a first elongated hole extending along the first direction, and the bottom plate is provided with a plurality of first fixing holes spaced apart from each other corresponding to the first elongated hole.

8. The welding tooling of claim 1, wherein the longitudinal positioning mechanism further comprises a second driving mechanism connected to the bottom plate, and an output end of the second driving mechanism is connected to a side of the movable front plate away from the fixed front plate to drive the movable front plate to be movable in the second direction relative to the fixed front plate.

9. The welding tool of claim 8, wherein the longitudinal positioning mechanism further comprises a second mounting seat disposed between the second driving mechanism and the bottom plate, the second mounting seat is provided with a second elongated hole extending along the second direction, and the bottom plate is provided with a plurality of second fixing holes spaced apart from each other corresponding to the second elongated hole.

10. The welding tooling of claim 1, wherein the transverse positioning mechanism further comprises a first reinforcing rib plate arranged between the fixed side plate and the bottom plate, and the longitudinal positioning mechanism further comprises a second reinforcing rib plate arranged between the fixed front plate and the bottom plate.