CN216939015U

CN216939015U - Battery cover plate pole welding tool

Info

Publication number: CN216939015U
Application number: CN202220444529.2U
Authority: CN
Inventors: 曾志亮; 杜秋文
Original assignee: Yibin Changying Precision Technology Co ltd; Shenzhen Everwin Precision Technology Co Ltd
Current assignee: Yibin Changying Precision Technology Co ltd; Shenzhen Everwin Precision Technology Co Ltd
Priority date: 2022-03-02
Filing date: 2022-03-02
Publication date: 2022-07-12
Anticipated expiration: 2032-03-02

Abstract

The utility model discloses a battery cover plate pole welding tool which comprises a base, a pressing device and a rotating device, wherein the base is provided with a supporting part for supporting a battery cover plate; the pressing device is used for being matched with the supporting part to press the battery cover plate tightly, and comprises a moving shaft, a rotatable connecting frame arranged on the moving shaft, a pole pressing head arranged on the rotatable connecting frame and positioned above the supporting part, and a pressing driving mechanism used for driving the moving shaft to move up and down; viewed in the vertical direction, the rotatable connection frame partially covers the battery cover plate in the radial direction; the rotating device is used for driving the rotatable connecting frame to rotate so as to change the position of the rotatable connecting frame for covering the battery cover plate. Due to the adoption of the technical scheme, the utility model is convenient for forming the end-to-end closed welding line on the edge of the pole and can improve the welding quality.

Description

Battery cover plate pole welding tool

Technical Field

The application relates to the field of tool fixtures, in particular to a battery cover plate pole welding tool.

Background

As shown in fig. 1, a battery cover plate 1000 includes a battery cover plate body 1100, two sealing rings 1200, two terminal posts 1300, and two terminal posts 1400. When producing this kind of battery cover plate, need arrange the sealing washer in corresponding utmost point post mounting groove, then press corresponding utmost point post on the sealing washer to the edge of utmost point post and the edge of utmost point post mounting groove weld.

When welding the utmost point post, need use utmost point post welding frock, utmost point post welding frock compresses tightly utmost point post on the seal ring, then rethread laser welding machine with the edge welding of utmost point post at the edge of utmost point post mounting groove, but when using current utmost point post welding frock welding utmost point post, can lead to the fact to shelter from to some of the edge of utmost point post, inconvenient formation head and the tail closed welding line around utmost point post.

And because be equipped with soft elastic sealing washer between the tank bottom of utmost point post and mounting groove, the degree that current utmost point post welding frock is oblique to utmost point post pressure is great, makes utmost point post great for battery cover plate body slope degree, influences welding quality.

SUMMERY OF THE UTILITY MODEL

To overcome the defects of the prior art, the technical problem to be solved by the application is that: the utility model provides a conveniently form battery cover utmost point post welding frock of closed welding line of end to end around utmost point post.

In order to solve the technical problem, the application provides a battery cover plate utmost point post welding frock, includes:

a base having a supporting part for supporting the battery cover plate;

the pressing device is used for being matched with the supporting part to press the battery cover plate tightly, and comprises a moving shaft, a rotatable connecting frame arranged on the moving shaft, a pole pressing head arranged on the rotatable connecting frame and positioned above the supporting part, and a pressing driving mechanism used for driving the moving shaft to move up and down; the rotatable connecting frame partially covers the battery cover plate in a radial direction as viewed in a vertical direction; and

and the rotating device is used for driving the rotatable connecting frame to rotate so as to change the position of the rotatable connecting frame for covering the battery cover plate.

Further, the axis of the moving shaft is perpendicular to the supporting surface of the supporting part and the lower surface of the pole pressing head.

Furthermore, the rotatable connecting frame comprises a rotatable sleeve which is annularly arranged on the periphery of the moving shaft and can rotate around the moving shaft, a connecting frame body which is connected with the rotatable sleeve and rotates along with the rotatable sleeve, and a limiting component which is used for limiting the connecting frame body so that the connecting frame body cannot move up and down relative to the moving shaft; the connecting frame body is provided with a connecting seat positioned on one side of the supporting part and a pressing seat positioned above the supporting part, the lower end of the connecting seat is connected with the rotatable sleeve, the upper end of the connecting seat is connected with the pressing seat, and one end, far away from the connecting seat, of the pressing seat is connected with the pole pressing head.

Furthermore, the base is also provided with a bottom plate formed below the supporting part and a connecting plate used for connecting the bottom plate and the supporting part, and an accommodating space is formed between the supporting part and the bottom plate; the supporting part is provided with an upper guide hole corresponding to the moving shaft, the moving shaft penetrates through the upper guide hole, the bottom plate is provided with a lower guide hole corresponding to the upper guide hole, the lower end of the moving shaft penetrates through the lower guide hole, the moving shaft is provided with a main body section, an upper guide section penetrating through the upper guide hole and a connecting section penetrating downwards and being connected with the pressing driving mechanism after penetrating through the lower guide hole, the rotatable sleeve is annularly arranged on the periphery of the main body section, and the main body section, the rotatable sleeve and the connecting seat are contained in the containing space.

Further, the lower end of the rotatable sleeve is provided with a lower guide section matched with the lower guide hole, the lower guide section is of a conical structure with a large upper part and a small lower part, the small end part of the conical structure is loosely matched with the lower guide hole, and the large end part of the conical structure is in zero matching with the lower guide hole.

Further, the supporting portion comprises a top plate connected with the connecting plate, an insert hole formed in the top plate at a position corresponding to the lower guide hole, and an insert fixedly arranged in the insert hole and protruding out of the upper surface of the top plate; the upper guide hole penetrates through the insert along the height direction of the insert; the battery cover plate pole column welding tool further comprises a feeding support plate used for supporting a battery cover plate, a limiting groove used for containing the battery cover plate and limiting the battery cover plate is formed in the upper surface of the feeding support plate, a positioning hole vertically penetrating through the feeding support plate is formed in the position, corresponding to the insert, in the limiting groove, the insert is arranged in the positioning hole in a penetrating mode, and the height of the upper surface of the insert is matched with the height of the bottom surface of the limiting groove.

Furthermore, the limiting assembly comprises an upper limiting piece and a lower limiting piece, wherein the upper limiting piece is used for limiting the rotatable sleeve and the connecting seat to move upwards, and the lower limiting piece is used for limiting the rotatable sleeve and the connecting seat to move downwards; the upper end surface of the gear and the upper end surface of the rotatable sleeve are positioned on the same plane, and the connecting seat is connected with the gear through a pin rod so as to be fixed on the upper end surface of the gear; an annular first ball groove is formed in the position, corresponding to the upper limiting piece, of the upper surface of the connecting seat, a plurality of first balls are arranged in the first ball groove, and each first ball is provided with a first rolling matching part protruding out of the first ball groove and in rolling matching with the upper limiting piece; an annular second ball groove is formed in the position, corresponding to the lower limiting piece, of the lower end face of the rotatable sleeve, a plurality of second balls are arranged in the second ball groove, and each second ball is provided with a second rolling matching portion protruding out of the corresponding second ball groove and in rolling matching with the lower limiting piece.

Furthermore, go up spacing piece for locating the epaxial limiting plate that removes, the upper surface of connecting seat is formed with the holding the first recess of limiting plate, first ball groove is from the tank bottom surface undercut of first recess forms.

Furthermore, the lower limiting piece is a pressing cylinder arranged on the moving shaft, and the connecting section of the moving shaft penetrates through the pressing cylinder downwards and then is locked at the output end of the pressing driving mechanism in a threaded manner; a second groove is formed at the position, corresponding to the pressing cylinder, of the lower end of the rotatable sleeve, and the second ball groove is formed by upwards sinking from the groove bottom of the second groove; the pressing cylinder is provided with a small outer diameter section accommodated in the second groove and a large outer diameter section which is abutted against the lower end face of the sleeve and is annularly arranged on the output end of the pressing driving mechanism, a first pin hole which is transversely communicated is formed on the moving shaft, a second pin hole which is transversely communicated is formed on the large outer diameter section at a position corresponding to the first pin hole, and a pin shaft is arranged in the first pin hole and the second pin hole in a penetrating manner so as to connect the pressing cylinder with the moving shaft.

Further, the utmost point post pressure head includes cylindrical bearing, flat face bearing, vertical scroll and clamp plate, cylindrical bearing fixes keep away from on the pressure seat the one end of connecting seat, flat face bearing locates press the lower surface of seat, the vertical scroll sets up with the axial lead with the removal axle, just the upper end of vertical scroll passes flat face bearing's dead eye after-fixing is in cylindrical bearing's dead eye, the clamp plate is located flat face bearing's lower surface and with the lower extreme of vertical scroll is connected.

Furthermore, the connecting device also comprises an outer cover arranged on the base, a first through hole for the driving shaft of the rotary driving mechanism to penetrate is formed in the position, corresponding to the rotary driving mechanism, of the outer cover, a second through hole for the supporting part to be exposed on the upper surface of the outer cover is formed in the position, corresponding to the supporting part, of the upper surface of the outer cover, a third through hole for the upper part of the connecting seat to be exposed on the upper surface of the outer cover is formed in the position, corresponding to the connecting seat, of the upper surface of the outer cover, and the third through hole is an arc-shaped hole matched with the rotation stroke of the connecting seat.

Furthermore, an arc-shaped shielding plate rotating along with the connecting seat is formed at a position, corresponding to the third through hole, on the connecting seat, the arc-shaped shielding plate is located on the lower surface of the third through hole, and when the connecting seat is located at a standby station, the arc-shaped shielding plate shields the third through hole.

According to the battery cover plate pole welding tool, the supporting surface of the supporting part is used for supporting the battery cover plate body, the pressing driving mechanism drives the moving shaft to move downwards, the rotatable connecting frame and the pole pressing head are further driven to move downwards, and the pole pressing head presses a pole on the sealing ring. In the process of welding the edge of the pole, the rotatable connecting frame is driven to rotate through the rotating device, and the position of the battery cover plate covered by the rotatable connecting frame is changed. Also make the rotatable coupling frame rotate and avoid the rotatable coupling frame to rotate the part that utmost point post edge was sheltered from before, conveniently form the closed welding line of head and the tail around utmost point post when welding utmost point post.

Because the axial lead perpendicular to of axis of rotation the holding surface of supporting part with the downside of utmost point post pressure head, the downside of utmost point post pressure head is on a parallel with the holding surface of supporting part promptly, when the battery cover plate body supports on the holding surface of supporting part, the downside of utmost point post pressure head is on a parallel with the battery cover plate body, and rotatable sleeve's inner chamber cooperatees with the removal axle, move down the in-process at the hold-down actuating mechanism drive removal axle, only have the beat slope of the removal axle that the removal caused, also only have the beat slope of the utmost point post pressure head that the removal caused, the degree that makes the downside of utmost point post pressure head take place the slope is less, when utmost point post pressure head compresses tightly utmost point post on the seal ring, the degree that utmost point post pressure head pressed the utmost point post to one side is less, can improve welding quality.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

FIG. 1 is a schematic view of a battery cover plate;

fig. 2 is a schematic structural diagram of a preferred embodiment of a battery cover plate post welding tool according to the present invention;

FIG. 3 is a schematic view of the housing of FIG. 2 with the housing omitted;

FIG. 4 is a schematic view of the base of FIG. 3;

FIG. 5 is a schematic view of the first pressing device in FIG. 3;

FIG. 6 is a cross-sectional view A-A of FIG. 5;

FIG. 7 is an enlarged view of a in FIG. 6;

FIG. 8 is an enlarged view of b in FIG. 6;

FIG. 9 is a schematic view of the first pole indenter of FIG. 5;

FIG. 10 is a schematic view of the first rotary device of FIG. 3;

FIG. 11 is a schematic view of the second pressing device of FIG. 3;

FIG. 12 is a cross-sectional view B-B of FIG. 11;

FIG. 13 is an enlarged view of c of FIG. 12;

FIG. 14 is an enlarged view of d in FIG. 12;

figure 15 is a schematic structural view of the second pole indenter of figure 11;

FIG. 16 is a schematic view of the second rotary device of FIG. 3;

FIG. 17 is a schematic structural view of the loading pallet of FIG. 3;

fig. 18 is a schematic structural view of another preferred embodiment of the welding tool for battery cover plate and post according to the present invention, with the outer cover omitted;

fig. 19 is a schematic structural view illustrating the battery cover plate post welding tool according to another preferred embodiment of the present invention, when the outer cover is omitted.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the technical solutions of the present application will be described in detail and completely with reference to the following specific embodiments of the present application and the accompanying drawings. It should be apparent that the described embodiments are only some of the embodiments of the present application, and not all of the 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.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.

As shown in fig. 3, an embodiment of a battery cover plate post welding tool according to the present invention includes a base 2000, a first pressing device 3000, a second pressing device 4000, a first rotating device 5000, and a second rotating device 6000. The first pressing device 3000 is used for pressing the battery cover plate in cooperation with the supporting portion, and the second pressing device 4000 is used for pressing the battery cover plate in cooperation with the supporting portion. First closing device 3000 and second closing device 4000 are corresponding to two utmost point posts on the battery cover respectively, and when first closing device 3000 compressed tightly a utmost point post on the battery cover on the sealing washer of a utmost point post mounting groove, second closing device 4000 can compress tightly on the sealing washer of another utmost point post mounting groove on the battery cover with another utmost point post. And then continuously welding two poles on the battery cover plate at one time. It will be appreciated that in some embodiments, there may be one compressing device, and in the case of only one compressing device, the compressing device first compresses a pole on the sealing ring in the pole mounting groove for welding, and after the welding is completed, the compressing device releases the welded pole. Then, the battery cover plate is rotated, the other pole and the other pole mounting groove on the battery cover plate are exchanged to the position of the pressing device, the pressing device presses the other pole for welding, and obviously, the welding efficiency is higher under the condition that two pressing devices (namely, the first pressing device 3000 and the second pressing device 4000) are provided.

As shown in fig. 4, the base 2000 includes a supporting portion 2100 for supporting the battery cover, a base plate 2200 formed under the supporting portion 2100, a connecting plate 2300 for connecting the base plate 2200 and the supporting portion 2100, and a mounting bracket 2400 fixed to a lower side of the base plate 2200 for fixing the base plate 2200 to the work table. The supporting portion 2100 includes a top plate 2101 connected to the connecting plate 2300, a first insert hole 2102 formed in the top plate 2101, a first insert 2103 fixed in the first insert hole 2102 and protruding from an upper surface of the top plate 2101, a second insert hole 2104 formed in the top plate 2101, and a second insert 2105 fixed in the second insert hole 2104 and protruding from an upper surface of the top plate 2101. The top surfaces of the first insert 2103 and the second insert 2105 are supporting surfaces for supporting the battery cover plate, but in some embodiments, the top surface of the top plate 2101 may be directly used as the supporting surface for supporting the battery cover plate. The bottom plate 2200, the connecting plate 2300 and the top plate 2101 together form an i-shaped structure, a first accommodating space 2500 and a second accommodating space 2600 are formed between the top plate 2101 and the bottom plate 2200, and the first accommodating space 2500 and the second accommodating space 2600 are respectively located at two sides of the connecting plate 2300. The supporting portion 2100 is provided with a first upper guide hole 2106 and a second upper guide hole 2107, the top plate 2101 is provided with a first upper guide hole 2106 and a second upper guide hole 2107 respectively disposed at two sides of the connecting plate 2300, the first upper guide hole 2106 penetrates the first insert 2103 along the height direction of the first insert 2103, the second upper guide hole 2107 penetrates the second insert 2105 along the height direction of the second insert 2105, the bottom plate 2200 is provided with a first lower guide hole 2201 corresponding to the first upper guide hole 2106, and the bottom plate 2200 is provided with a second lower guide hole 2202 corresponding to the second upper guide hole 2107. The first lower guide hole 2201 is opposite to the first insert hole 2102, and has the same diameter, so that when the first lower guide hole 2201 and the first insert hole 2102 are machined, the first lower guide hole 2201 and the first insert hole 2102 can be machined in a synchronous and slow wire-walking mode, and the concentricity of the first lower guide hole 2201 and the first insert hole 2102 is guaranteed to be high; the second lower guide hole 2202 and the second insert hole 2104 are just opposite to each other and have the same diameter, so that when the second lower guide hole 2202 and the second insert hole 2104 are machined, the second lower guide hole 2202 and the second insert hole 2104 can be machined at the same speed, and the concentricity of the second lower guide hole 2202 and the second insert hole 2104 is high. The mounting bracket 2400 includes a mounting plate 2401 and two fixing plates 2402 fixedly connected below the bottom plate 2200, the two fixing plates 2402 are respectively disposed on two opposite edges of the bottom plate 2200, upper and lower ends of the fixing plates 2402 are respectively fixed on the bottom plate 2200 and the mounting plate 2401, and a third accommodating space 2700 is defined between the bottom plate 2200, the mounting plate 2401 and the two fixing plates 2402. Two bolt grooves 2701 are arranged on the mounting plate 2401, and the mounting plate 2401 can be fixedly mounted on the workbench by bolts passing through the bolt grooves 2701 and being screwed on screw holes on the workbench, so that the whole base 2000 can be mounted on the workbench. In other embodiments, the bolt slot 2701 can be other numbers than two. It should be understood that the mounting bracket mainly serves for mounting the pressing drive mechanism of the pressing device, and is not an essential element, and in other embodiments, the mounting bracket may be eliminated if other mechanical devices or devices provide the mounting space for the pressing drive mechanism.

As shown in fig. 5, the first pressing device 3000 includes a first moving shaft 3100, a first rotatable connecting frame 3200 disposed on the first moving shaft 3100, a first pole indenter 3300 disposed on the first rotatable connecting frame 3200 and located above the supporting portion 2100, and a first pressing driving mechanism 3400 for driving the first moving shaft 3100 to move up and down. The first rotatable coupling frame 3200 partially covers the battery cover plate in a radial direction, as viewed in a vertical direction.

As shown in fig. 4 and 6, the first moving shaft 3100 has a first body portion 3101 located in the first receiving space 2500, a first upper guide portion 3102 passing through the first upper guide hole 2106, and a first connecting portion 3103 passing through the first lower guide hole 2201 and connecting with the first pressing driving mechanism 3400, the first moving shaft 3100 is provided with a first pin hole, and the first body portion 3101 of the first moving shaft 3100 is received in the first receiving space 2500. The first upper guide hole 2106 can guide the first upper guide section 3102, so that the first moving shaft 3100 is not easy to tilt in the downward moving process, the first insert 2103 is made of wear-resistant materials, such as high manganese steel, wear-resistant alloy steel, wear-resistant chromium cast iron and the like, and after long-term use, the first upper guide section 3102 at the upper end of the first moving shaft 3100 cannot wear the hole wall of the first upper guide hole 2106, so that the first upper guide hole 2106 can keep accurate guide of the upper end of the first moving shaft 3100 for a long time. The first upper guide hole 2106 is directly arranged at the top plate 2101 position to guide the first moving shaft 3100, and a separate guide component (such as a guide rod and a guide rail) is not required to be arranged additionally, so that the material can be saved, the volume of the battery cover plate pole welding tool can be reduced, in addition, the first upper guide hole 2106 is directly used for guiding the up-and-down movement of the first moving shaft 3100, and the guiding accuracy is higher.

As shown in fig. 5 and 6, the first rotatable link 3200 includes a first rotatable sleeve 3210 surrounding the first moving shaft 3100 and rotatable about the first moving shaft 3100, a first link body 3220 connected to the first rotatable sleeve 3210 to rotate with the first rotatable sleeve 3210, and a first position-limiting assembly 3230 for limiting the position of the first link body 3220 such that the first link body 3220 cannot move up and down relative to the first moving shaft 3100; the first rotatable sleeve 3210 is disposed around the first body section 3101, an inner cavity of the first rotatable sleeve 3210 is matched with the inner cavity of the first body section 3101, and the first rotatable sleeve 3210 is received in the first receiving space 2500. The first rotatable sleeve 3210 has a first lower guiding segment 3211 at a lower end thereof, and the first lower guiding segment 3211 cooperates with the first lower guiding hole 2201 to guide the first rotatable sleeve 3210, so that the first rotatable sleeve 3210 is not prone to tilting during the up-and-down movement. The first lower guiding segment 3211 has a tapered structure with a large upper part and a small lower part (since the tapered section of the first lower guiding segment 3211 is smaller, the taper thereof is not obviously shown in the drawings), the small end of the tapered structure is loosely fitted with the first lower guiding hole 2201, and the large end of the tapered structure is zero fitted with the first lower guiding hole 2201. During the downward movement of the first moving shaft 3100, the lower end of the first lower guide segment 3211 is just engaged with the first lower guide hole 2201 in a loose manner, so as to ensure that the downward movement resistance of the first moving shaft 3100 is small. When the first lower guide segment 3211 is pulled down to the right position, the upper end of the first lower guide segment 3211 is matched with the first lower guide hole 2201 to be zero, so that the offset of the axial lead of the first rotatable sleeve 3210 can be ensured to be small. In other embodiments, the first lower guide section may not be provided on the first rotatable sleeve, and the first lower guide section may be provided at a lower portion of the first moving shaft.

As shown in fig. 6 and 7, the first connecting frame body 3220 has a first connecting seat located at one side of the supporting portion 2100 and a first pressing seat 3221 located above the supporting portion 2100, the first pressing seat 3221 covers the battery cover plate along a radial portion, a lower end of the first connecting seat is connected to the first rotatable sleeve 3210, an upper end of the first connecting seat is connected to the first pressing seat 3221, and an end of the first pressing seat 3221 away from the first connecting seat is connected to the first pole pressing head 3300. An annular first ball groove is formed in the upper surface of the first connecting seat, a plurality of first balls are disposed in the first ball groove, and the first connecting seat is accommodated in the first accommodating space 2500. The first rotatable coupling frame 3200 can change the position where the first press seat 3221 covers the battery cover plate when rotating.

Specifically, the first connecting seat includes a first limb 3222 arranged in a transverse direction and a second limb 3223 arranged in a longitudinal direction, a first end of the first limb 3222 is fixed on the first rotatable sleeve 3210, the first limb 3222 is accommodated in the first accommodating space 2500, a lower end of the second limb 3223 is fixed at a second end of the first limb 3222, the first limb 3222 and the second limb 3223 together form an L-shaped first connecting seat, and an upper end of the first limb 3222 is fixed at an end of the first pressing seat 3221. One end of the first pressing seat 3221, which is far away from the second limb 3223, is connected to the first pole pressing head 3300, the first pressing seat 3221 and the first limb 3222 are respectively located at the upper side and the lower side of the top plate 2101, and the first pressing seat 3221, the first limb 3222 and the second limb 3223 jointly enclose an avoiding gap for preventing the first connecting frame body 3220 from interfering with the top plate 2101 in the rotating process. An annular first ball groove 3224 is formed at the upper end of the first limb 3222, a plurality of first balls 3225 are arranged in the first ball groove 3224, each first ball 3225 has a first rolling matching portion protruding out of the first ball groove 3224, a first groove 3226 is formed at the upper end of the first limb 3222, and the first ball groove 3224 is formed by downward sinking from the bottom surface of the first groove 3226. It is understood that the first connecting frame body 3220 is not limited to the shape structure described above, for example, the first connecting frame body 3220 may also be a circular arc structure, a lower end of the circular arc structure is fixed on the first rotatable sleeve 3210, the first pole pressing head 3300 is fixed on an upper end of the circular arc structure, and an avoiding gap for preventing the first connecting frame body 3220 from interfering with the top plate 2101 during the rotation process is formed in a middle portion of the circular arc structure.

As shown in fig. 7 and 8, the first limiting assembly 3230 includes a first upper limiting member for limiting the upward movement of the first rotatable sleeve 3210 and the first connecting seat, and a first lower limiting member for limiting the downward movement of the first rotatable sleeve 3210 and the first connecting seat. Specifically, the first upper limiting member is a first limiting plate 3231 disposed on the first moving shaft 3100, the first limiting plate 3231 is accommodated in the first groove 3226, and the first limiting plate 3231 is matched with the first groove 3226, so as to further ensure the concentricity between the first moving shaft 3100 and the first rotatable sleeve 3210. The downside and the first roll cooperation portion of cooperation of first limiting plate 3231 roll cooperation, enable first connecting seat when rotating for first limiting plate 3231, reduce the frictional force between first connecting seat and the first limiting plate 3231, also reduce the frictional force between first limb 3222 and the first limiting plate 3231, make first connecting seat rotate more smoothly. An annular second ball groove 3212 is formed in a lower end surface of the first rotatable sleeve 3210, a plurality of second balls 3213 are disposed in the second ball groove 3212, and the second balls 3213 have a second rolling engagement portion protruding from the second ball groove 3212. The first lower limiting member is a first pressing cylinder 3232 arranged on the first moving shaft 3100; a second groove 3214 is formed at a position of the lower end of the first rotatable sleeve 3210 corresponding to the first compression drum 3232, and a second ball groove 3212 is formed by upward recessing from a groove bottom of the second groove 3214; the first pressing cylinder 3232 has a first small outer diameter section 32321 accommodated in the second groove 3214 and a first large outer diameter section 32322 abutting against the lower end surface of the first rotatable sleeve 3210 and annularly arranged on the output end of the first pressing driving mechanism 3400, and the first small outer diameter section 32321 is matched with the second groove 3214, so as to further ensure the concentricity between the first moving shaft 3100 and the first rotatable sleeve 3210. The upper end of the first small outer diameter section 32321 is in rolling fit with the second rolling fit part, so that when the first rotatable sleeve 3210 rotates, the friction between the first rotatable sleeve 3210 and the first pressure cylinder 3232 can be reduced, and the rotation of the first rotatable sleeve 3210 is smoother. A second pin hole is formed in the first large outer diameter section 32322 at a position corresponding to the first pin hole, and a first pin shaft 3233 is inserted into the first pin hole and the second pin hole to connect the first pressing cylinder 3232 and the first moving shaft 3100. In some embodiments, the first lower guide segment 3211 may also be disposed on the first large outer diameter segment 32322.

As shown in fig. 9, the first pole pressing head 3300 includes a first cylindrical bearing 3301, a first planar bearing 3302, a first vertical shaft 3303, and a first pressing plate 3304, the first cylindrical bearing 3301 is fixed on the first pressing base 3221 at an end far away from the first connecting base, specifically, at an end far away from the second limb 3223, the first planar bearing 3302 is disposed on a lower surface of the first pressing base 3221, the first vertical shaft 3303 is coaxially disposed with the first moving shaft 3100, an upper end of the first vertical shaft 3303 passes through a bearing hole of the first planar bearing 3302 and then is fixed in a bearing hole of the first cylindrical bearing 3301, and the first pressing plate 3304 is disposed on a lower surface of the first planar bearing 3302 and connected to a lower end of the first vertical shaft 3303. Under first plane bearing 3302 and first cylindrical bearing 3301's effect, make first clamp plate 3304 rotate for first pressure seat 3221 comparatively smoothly, when first clamp plate 3304 compresses tightly utmost point post on the battery apron and first link body 3220 emergence and rotates, first clamp plate 3304 can not rotate along with first pressure seat 3221, and then can not disturb utmost point post, can not influence utmost point post welding precision, can improve utmost point post welding quality.

As shown in fig. 8, the first pressing driving mechanism 3400 is a first pressing cylinder which is located in the third receiving space 2700 and is fixedly installed on the lower side surface of the bottom plate 2200, the first connecting section 3103 of the first moving shaft 3100 passes through the first lower guiding hole 2201 and then is screw-locked on the driving shaft of the first pressing cylinder, the lower end of the first large outer diameter section 32322 of the first pressing cylinder 3232 is annularly arranged on the driving shaft of the first pressing cylinder, the inner wall of the first large outer diameter section 32322 is provided with a first clamping block, the driving shaft of the first pressing cylinder is provided with a first clamping groove which is matched with the first clamping block, the first large outer diameter section 32322 cannot rotate relative to the driving shaft of the first pressing cylinder through the matching of the first clamping block and the first clamping groove, so that the first connecting section 3103 screw-locked on the driving shaft of the first pressing cylinder cannot be released from the driving shaft of the first pressing cylinder, the structural stability is good. The driving shaft through the first compressing cylinder moves up and down, so that the first moving shaft 3100 can be driven to move up and down, and then the first rotatable sleeve 3210, the first connecting frame body 3220 and the first pressing plate 3304 are driven to move up and down, so that the first pressing plate 3304 is separated from the pole or compresses the pole. It is understood that the first compression drive mechanism 3400 is not limited to a pneumatic cylinder, for example, in some embodiments, the first compression drive mechanism 3400 may also be a hydraulic cylinder or a push rod motor.

As shown in fig. 11, the second pressing device 4000 includes a second moving shaft 4100, a second rotatable connecting rack 4200 provided on the second moving shaft 4100, a second pole holding head 4300 provided on the second rotatable connecting rack 4200 and located above the supporting portion 2100, and a second pressing driving mechanism 4400 for driving the second moving shaft 4100 to move up and down. The second rotatable connecting rack 4200 partially covers the battery cover plate in a radial direction as viewed in a vertical direction.

As shown in fig. 4 and 12, the second moving shaft 4100 has a second main section 4101 located in the second receiving space 2600, a second upper guiding section 4102 passing through the second upper guiding hole 2107, and a second connecting section 4103 passing through the second lower guiding hole 2202 and connected to the second pressing driving mechanism 4400, the second moving shaft 4100 is provided with a first pin hole, and the second main section 4101 of the second moving shaft 4100 is received in the second receiving space 2600. The second upper guide hole 2107 can guide the second upper guide section 4102 so that the second moving shaft 4100 is not easily tilted during the downward movement, and the second insert 2105 is made of an abrasion-resistant material, such as high manganese steel, abrasion-resistant alloy steel, abrasion-resistant chromium cast iron, etc., so that the second upper guide section 4102 at the upper end of the second moving shaft 4100 does not abrade the hole wall of the second upper guide hole 2107 even after a long period of use, and the second upper guide hole 2107 can maintain accurate guide of the upper end of the second moving shaft 4100 for a long period of time. The second upper guide hole 2107 is directly arranged at the top plate 2101 position to guide the second moving shaft 4100, and a separate guide component (such as a guide rod and a guide rail) is not required to be arranged additionally, so that the material can be saved, the volume of the battery cover plate pole welding tool can be reduced, in addition, the second upper guide hole 2107 is directly used for guiding the up-and-down movement of the second moving shaft 4100, and the guide accuracy is higher.

As shown in fig. 11 and 12, the second rotatable link 4200 includes a second rotatable sleeve 4210 provided around the outer circumference of the second moving shaft 4100 and rotatable about the second moving shaft 4100, a second link body 4220 connected to the second rotatable sleeve 4210 to rotate with the second rotatable sleeve 4210, and a second stopper 4230 for stopping the second link body 4220 such that the second link body 4220 cannot move up and down with respect to the second moving shaft 4100; the second rotatable sleeve 4210 is annularly arranged on the outer periphery of the second body section 4101, an inner cavity of the second rotatable sleeve 4210 is matched with the inner cavity of the second body section 4101, the second rotatable sleeve 4210 is accommodated in the second accommodating space 2600, the second rotatable sleeve 4210 comprises a second lower guide section 4211 positioned at the lower end of the second rotatable sleeve 4210, and the second lower guide section 4211 is matched with the second lower guide hole 2202 to guide the second rotatable sleeve 4210, so that the second rotatable sleeve 4210 is not prone to tilt in the process of moving up and down. The second lower guide section 4211 has a tapered structure with a large upper part and a small lower part (since the tapered section of the second lower guide section 4211 is small, the taper thereof is not clearly shown in the drawing), the small end part of the tapered structure is loosely fitted with the second lower guide hole 2202, and the large end part of the tapered structure is zero fitted with the second lower guide hole 2202. During the downward movement of the second moving shaft 4100, the lower end of the second lower guide stage 4211 is initially loosely fitted into the second lower guide hole 2202, thereby ensuring that the downward movement resistance of the second moving shaft 4100 is small. When the sleeve is pulled down to the right position, the upper end of the second lower guide section 4211 is matched with the second lower guide hole 2202 to be zero, so that the offset of the axis line of the second rotatable sleeve 4210 can be ensured to be small. In other embodiments, the second lower guide stage 4211 may not be disposed on the second rotatable sleeve 4210, and the second lower guide stage 4211 may be disposed at a lower portion of the second moving shaft 4100.

As shown in fig. 12 and 13, the second link housing 4220 has a second link housing on one side of the support portion 2100 and a second pressure housing 4221 above the support portion 2100, the second pressure housing 4221 partially covers the battery cover in a radial direction, the second link housing is connected to the second rotatable sleeve 4210 at a lower end thereof and connected to the second pressure housing 4221 at an upper end thereof, and an end of the second pressure housing 4221 away from the second link housing is connected to the second pole pressure head 4300. An annular first ball groove 4224 is formed on an upper surface of the second connection seat, a plurality of first balls 4225 are disposed in the first ball groove 4224, and the second connection seat is received in the second receiving space 2600. The second rotatable connecting rack 4200 can change the position where the second boss 4221 covers the battery cover plate when rotated.

Specifically, the second connecting seat comprises a first limb 4222 arranged in the transverse direction and a second limb 4223 arranged in the longitudinal direction, a first end of the first limb 4222 is fixed on the second rotatable sleeve 4210, the first limb 4222 is accommodated in the second accommodating space 2600, a lower end of the second limb 4223 is fixed at a second end of the first limb 4222, the first limb 4222 and the second limb 4223 together form an L-shaped second connecting seat, and an upper end of the first limb 4222 is fixed at one end of the second pressure seat 4221. One end of the second pressure seat 4221, which is far away from the second limb 4223, is connected with the second pole pressure head 4300, the second pressure seat 4221 and the first limb 4222 are respectively positioned at the upper side and the lower side of the top plate 2101, and the second pressure seat 4221, the first limb 4222 and the second limb 4223 jointly enclose an avoiding gap for preventing the second connecting frame body 4220 from interfering with the top plate 2101 in the rotating process. An annular first ball groove 4224 is formed in the upper end of the first limb 4222, a plurality of first balls 4225 are arranged in the first ball groove 4224, each first ball 4225 is provided with a first rolling matching portion protruding out of the first ball groove 4224, a first groove 4226 is formed in the upper end of the first limb 4222, and the first ball groove 4224 is formed by sinking downwards from the groove bottom surface of the first groove 4226. It is understood that the second link body 4220 is not limited to the above-described shape, for example, the second link body 4220 may also have a circular arc structure, the lower end of which is fixed to the second rotatable sleeve 4210, and the second pole head 4300 is fixed to the upper end of which, and the middle of which forms an escape notch for preventing the second link body 4220 from interfering with the top plate 2101 during the rotation.

As shown in fig. 13 and 14, the second limit assembly 4230 comprises a second upper limit member for limiting the upward movement of the second rotatable sleeve 4210 and the second connecting seat, and a second lower limit member for limiting the downward movement of the second rotatable sleeve 4210 and the second connecting seat; specifically, the second upper limiting member is a second limiting plate 4231 disposed on the second moving shaft 4100, the second limiting plate 4231 is accommodated in the first groove 4226, and the second limiting plate 4231 is matched with the first groove 4226, so as to further ensure the concentricity between the second moving shaft 4100 and the second rotatable sleeve 4210. The lower side surface of the second limit plate 4231 is in rolling fit with the second rolling fit part, so that when the first limb 4222 rotates relative to the second limit plate 4231, friction between the second connecting seat and the second limit plate 4231 is reduced, that is, friction between the second limb 4222 and the second limit plate 4231 is reduced, and the second connecting seat rotates more smoothly. An annular second ball groove 4212 is formed in a lower end surface of the second rotatable sleeve 4210, a plurality of second balls 4213 are disposed in the second ball groove 4212, and the second balls 4213 have second rolling engagement portions protruding from the second ball groove 4212. The second lower limiting member is a second pressure cylinder 4232 provided on the second moving shaft 4100; a second groove 4214 is formed at a lower end of the second rotatable sleeve 4210 corresponding to the second pressure cylinder 4232, and a second ball groove 4212 is formed by being upwardly recessed from a groove bottom of the second groove 4214; the second pressure cylinder 4232 has a second small outer diameter 42321 accommodated in the second indent 4214 and a second large outer diameter 42322 abutted against the lower end surface of the second rotatable sleeve 4210 and annularly arranged on the output end of the second pressing driving mechanism 4400, and the second small outer diameter 42321 is matched with the second indent 4214, so as to further ensure the concentricity between the second movable shaft 4100 and the second rotatable sleeve 4210. The upper end of the second small outer diameter section 42321 is in rolling engagement with the second rolling engagement portion, and when the second rotatable sleeve 4210 rotates, friction between the second rotatable sleeve 4210 and the second pressure cylinder 4232 can be reduced, so that the second rotatable sleeve 4210 can rotate more smoothly. A second pin hole is formed in the second large outer diameter section 42322 at a position corresponding to the first pin hole, and a second pin 4233 is inserted into the first pin hole and the second pin hole to connect the second pressure cylinder 4232 and the second movable shaft 4100. In some embodiments, the second lower guide section 4211 may also be disposed on the second large outer diameter section 42322.

As shown in fig. 15, the second pole pressing head 4300 includes a second cylindrical bearing 4301, a second planar bearing 4302, a second vertical shaft 4303, and a second pressing plate 4304, the second cylindrical bearing 4301 is fixed to the second pressing base 4221 at an end far from the second connecting base, that is, an end far from the second limb 4223, the second planar bearing 4302 is disposed on a lower surface of the second pressing base 4221, the second vertical shaft 4303 is coaxial with the second moving shaft 4100, an upper end of the second vertical shaft 4303 passes through a bearing hole of the second planar bearing 4302 and then is fixed in a bearing hole of the second cylindrical bearing 4301, and the second pressing plate 4304 is located on a lower surface of the second planar bearing 4302 and connected to a lower end of the second vertical shaft 4303. Under the effect of second plane bearing 4302 and second cylinder bearing 4301, make second clamp plate 4304 rotate for second pressure seat 4221 comparatively smoothly, when second clamp plate 4304 compresses tightly utmost point post on the battery apron and second link body 4220 and takes place to rotate, second clamp plate 4304 can not rotate along with second pressure seat 4221, and then can not disturb utmost point post, can not influence utmost point post welding precision, can improve utmost point post welding quality.

As shown in fig. 14, the second pressing driving mechanism 4400 is a second pressing cylinder which is located in the third receiving space 2700 and is fixedly installed on the lower side surface of the bottom plate 2200, the second connecting section 4103 of the second moving shaft 4100 passes through the second lower guide hole 2202 and then is screw-locked on the driving shaft of the second pressing cylinder, the lower end of the second large outer diameter section 42322 of the second pressing cylinder 4232 is ring-arranged on the driving shaft of the second pressing cylinder, the inner wall of the second large outer diameter section 42322 is provided with a second locking block, the driving shaft of the second pressing cylinder is provided with a second locking groove which is matched on the second locking block, the second large outer diameter section 42322 cannot rotate relative to the driving shaft of the second pressing cylinder through the matching of the second locking block and the second locking groove, and therefore the second moving shaft 4100 cannot rotate relative to the driving shaft of the second pressing cylinder, and the second connecting section 4103 screw-locked on the driving shaft of the second pressing cylinder cannot be released from the driving shaft of the second pressing cylinder, the structural stability is good. The driving shaft of the second pressing cylinder moves up and down to drive the second movable shaft 4100 to move up and down, so as to drive the second rotatable sleeve 4210, the second connection frame body 4220 and the second pressing plate 4304 to move up and down, thereby separating the second pressing plate 4304 from the pole or pressing the pole. It is to be appreciated that the second pressing drive mechanism 4400 is not limited to a pneumatic cylinder, for example, in some embodiments, the second pressing drive mechanism 4400 may also be a hydraulic cylinder or a push rod motor.

As shown in fig. 10, a first rotating means 5000 for driving the first rotatable coupling frame 3200 to rotate so as to change a position where the first rotatable coupling frame 3200 covers the battery cover plate. Specifically, the first rotating device 5000 includes a first gear 5100 fixedly disposed on an outer periphery of the first rotatable sleeve 3210, a first rack 5200 engaged with the first gear 5100, and a first rotary driving mechanism 5300 for driving the first rack 5200 to reciprocate so that the first gear 5100 rotates reciprocally. The upper end surface of the first gear 5100 and the upper end surface of the first rotatable sleeve 3210 are located on the same plane, the first connecting base is connected with the first gear 5100 through a pin rod so as to be fixed to the upper end surface of the first gear 5100, that is, the first limb 3222 is connected with the first gear through the pin rod, and the first limb 3222 is fixed to the upper end surface of the first gear 5100, so that the first gear 5100 does not idle, and the first gear 5100 can be prevented from rotating relative to the first rotatable sleeve 3210; the first rotary driving mechanism 5300 is a first rotary cylinder, the first rotary cylinder is a common cylinder for driving a driving shaft of the first rotary cylinder to extend and retract, the first rotary cylinder is fixed on the bottom plate 2200 through a first cylinder fixing seat, the first rack 5200 is fixed on the driving shaft of the first rotary cylinder, and the first rack 5200 can be driven to reciprocate through the extension and retraction of the driving shaft of the first rotary cylinder. It is to be appreciated that first rotary drive mechanism 5300 is not limited to a pneumatic cylinder, for example, in some embodiments, first rotary drive mechanism 5300 may also be a hydraulic cylinder or a ram motor.

As shown in fig. 16, a second rotating device 6000 is used to drive the second rotatable connecting rack 4200 to rotate so as to change the position where the second rotatable connecting rack 4200 covers the battery cover plate. The second rotating device 6000 includes a second gear 6100 fixed on the outer periphery of the second rotatable sleeve 4210, a second rack 6200 engaged with the second gear 6100, and a second rotation driving mechanism 6300 driving the second rack 6200 to reciprocate so as to make the second gear 6100 rotate reciprocally correspondingly. The upper end surface of the second gear 6100 and the upper end surface of the second rotatable sleeve 4210 are located on the same plane, and the second connecting seat is connected with the second gear 6100 through a pin to be fixed on the upper end surface of the second gear 6100, so that the second gear 6100 does not idle, and the second gear 6100 can be prevented from rotating relative to the second rotatable sleeve 4210; the second rotary driving mechanism 6300 is a second rotary cylinder, the second rotary cylinder is a common cylinder for driving a driving shaft of the second rotary cylinder to extend and retract, the second rotary cylinder is fixed on the bottom plate 2200 through a second cylinder fixing seat, the second rack 6200 is fixed on the driving shaft of the second rotary cylinder, and the second rack 6200 can be driven to reciprocate through the extending and retracting movement of the driving shaft of the second rotary cylinder. It is understood that the second rotary drive mechanism 6300 is not limited to a pneumatic cylinder, for example, in some embodiments, the second rotary drive mechanism 6300 may be a hydraulic cylinder or a push rod motor.

As shown in fig. 3 and 10, a first chute seat 5210 is fixedly arranged on the base 2000, a first chute 5220 parallel to the linear motion direction of the first rack 5200 is arranged on the first chute seat 5210, a first slide rail 5230 in the first chute 5220 in a first sliding fit manner is arranged on the first rack 5200, and the first chute 5220 can guide the movement of the first rack 5200, so that the first rack 5200 is more stable during movement.

As shown in fig. 3 and 16, a second sliding groove holder 6210 is fixedly disposed on the base 2000, a second sliding groove 6220 parallel to the linear movement direction of the second rack 6200 is disposed on the second sliding groove holder 6210, a second sliding rail 6230 slidably fitted in the second sliding groove 6220 is disposed on the second rack 6200, and the second rack 6200 can be guided to move through the second sliding groove 6220, so that the second rack 6200 is more stable during moving.

As shown in fig. 17, the battery cover plate pole welding tool further includes a loading support plate 700 for supporting the battery cover plate, the upper surface of the loading support plate 7000 is provided with a limiting groove for accommodating and limiting the battery cover plate, the loading support plate 7000 is provided with a first positioning hole 7100 matched with the upper end of the first insert 2103 and a second positioning hole 7200 matched with the upper end of the second insert 2105, the upper end surfaces of the first insert 2103 and the second insert 2105 can respectively pass through the first positioning hole 7100 and the second positioning hole 7200 to support the battery cover plate, and the top surfaces of the first insert 2103 and the second insert 2105 are matched with the bottom surface of the limiting groove. The edge of material loading layer board 7000 sets firmly a plurality of protrusions in the stopper 7300 of material loading layer board 7000 top surface, and the side that is close to material loading layer board 7000 middle part of each stopper 7300 encloses into one and battery cover plate body complex region, and this region is for being used for carrying out spacing groove to battery cover plate body edge. A handle 7400 is arranged on the feeding support plate 7000, so that the feeding support plate 7000 can be conveniently placed on the top plate 2101 by holding the handle 7400, and the feeding support plate 7000 can be moved away from the top plate 2101. Conveniently place the back with the battery apron body on material loading layer board 7000, place material loading layer board 7000 on roof 2101 again, after utmost point post welding is good, take out the battery apron from the spacing inslot again after making things convenient for material loading layer board 7000 to take out from roof 2101. It is to be understood that the structure of the spacing groove of the present invention is not limited to the above-described shape structure. For example, in some embodiments, a recess recessed toward the bottom surface of the loading plate 7000 may be directly formed on the top surface of the loading plate 7000 and used as a stopper groove. The battery cover plate pole welding tool further comprises a first pressing cap 7500 and a second pressing cap 7600 (shown in fig. 3), wherein the first pressing cap 7500 and the second pressing cap 7600 are used for respectively covering two poles of a battery cover plate to protect the poles, and high temperature generated by welding is prevented from damaging the poles during welding.

As shown in fig. 2, the battery cover post welding tool further includes a cover 8000 disposed on the base 2000, where a position of the cover 8000 corresponding to the first rotary driving mechanism 5300 is provided with a first through hole i for a driving shaft of the first rotary driving mechanism 5300 to penetrate through, and a position of the cover 8000 corresponding to the second rotary driving mechanism 6300 is provided with a first through hole ii for a driving shaft of the second rotary driving mechanism 6300 to penetrate through. The upper surface of the housing 8000 is provided with a second through hole at a position corresponding to the support portion 2100, through which the support portion 2100 is exposed to the upper surface of the housing 8000, and in particular, the top plate 2101 is exposed to the upper surface of the housing 8000. The upper surface of the outer cover 8000 is provided with a third through hole i at a position corresponding to the first connecting seat, so that the upper part of the first connecting seat is exposed to the upper surface of the outer cover 8000, in particular, the upper part of the second limb 3223 in the first connecting seat is exposed to the upper surface of the outer cover 8000, and the third through hole i is an arc-shaped hole matched with the rotation stroke of the first connecting seat, that is, the third through hole i is matched with the rotation stroke of the second limb 3223 of the first connecting seat. A first arc-shaped shielding plate 8100 rotating along with the first connecting seat is formed on the first connecting seat at a position corresponding to the third through hole I, the first arc-shaped shielding plate 8100 is located on the lower surface of the third through hole I, and when the first connecting seat is located at a standby station, the first arc-shaped shielding plate 8100 shields the third through hole I; the position of the upper surface of the outer cover 8000 corresponding to the second connecting seat is provided with a third through hole ii for exposing the upper part of the second connecting seat to the upper surface of the outer cover 8000, specifically, the upper part of the second limb 4223 in the second connecting seat is exposed to the upper surface of the outer cover 8000, the third through hole ii is an arc-shaped hole matched with the rotation stroke of the second connecting seat, that is, the third through hole ii is matched with the rotation stroke of the second limb 4223 of the second connecting seat. Corresponding to position department of third perforation II is formed with along on the second connecting seat second arc sunshade 8200 that the second connecting seat pivoted, second arc sunshade 8200 is located the lower surface of third perforation II works as when the second connecting seat is in treating the station, second arc sunshade 8200 shelters from third perforation II can reduce the dust and the impurity that get into the inside of dustcoat 8000, and dustcoat 8000 plays the effect of protection to the structural component in it.

The use principle is as follows: when the battery cover plate pole welding tool is used for pole welding, a battery cover plate body is placed in a limiting groove in a feeding support plate 7000, the feeding support plate 7000 loaded with the battery cover plate body is placed on a top plate 2101 by holding a handle 7400, at the moment, the top plate 2101 supports the feeding support plate 7000, and a first insert 2103 and a second insert 2105 are respectively positioned in a first positioning hole 7100 and a second positioning hole 7200, so that the feeding support plate 7000 is positioned. The top surfaces of the first and second inserts 2103, 2105 (i.e., the support surface of the support portion 2100) directly support the battery lid body. Then place sealing washer and utmost point post in two utmost point post mounting grooves of battery apron body to cover first cap 7500 and the second of pressing respectively at two utmost point posts and press cap 7600, first cap 7500 and the second of pressing is pressed cap 7600 and is protected two utmost point posts respectively, prevents that utmost point post from receiving the damage of laser welding high temperature. Then, the first moving shaft 3100 and the second moving shaft 4100 are driven to move downwards by the first pressing cylinder and the second pressing cylinder, and the first rotatable sleeve 3210, the first connecting seat, the first pressing seat 3221 and the first pressing plate 3304 move downwards along with the first moving shaft 3100 until the first pressing plate 3304 is pressed on the first pressing cap 7500; the second rotatable sleeve 4210, the second connecting seat, the second pressing seat 4221 and the second pressing plate 4304 move downward along the second moving shaft 4100 until the second pressing plate 4304 presses against the second pressing cap 7600; the first pressing plate 3304 and the second pressing plate 4304 simultaneously press the first pressing cap 7500 and the second pressing cap 7600, so that the two poles can be simultaneously pressed on the two sealing rings respectively. Then can weld the utmost point post edge that is compressed tightly by first clamp plate 3304 earlier through the laser welder, at this utmost point post in-process of welding, drive through first revolving cylinder and first rack 5200 first gear 5100 and first rotatable sleeve 3210 rotate, first connecting seat and first pressure seat 3221 rotate along with first rotatable sleeve 3210, alternate the position that this utmost point post edge was sheltered from by first pressure seat 3221, conveniently form the closed welding line of head and the tail at the edge of this utmost point post. Then laser welder welds the edge of the utmost point post that is compressed tightly by second clamp plate 4304, in welding process, drive second gear 6100 and the rotatable sleeve 4210 of second through second revolving cylinder and second rack 6200 and rotate, second connecting seat and second pressure seat 4221 rotate along with the rotatable sleeve 4210 of second, the position that the transform this utmost point post edge was sheltered from by second pressure seat 4221, the convenient edge at this utmost point post forms the closed welding line of head and the tail, the welding of two utmost point posts on the battery apron has been accomplished promptly this moment. And then the first pressing cylinder, the second pressing cylinder, the first rotating cylinder and the second rotating cylinder are reset, the first pressing plate 3304 and the second pressing plate 4304 are separated from the first pressing cap 7500 and the second pressing cap 7600 respectively, the feeding support plate 7000 is taken out from the top plate 2101, the welded battery cover plate is taken out from the limiting groove, and then the subsequent battery cover plate can be welded according to the steps. Since the axes of the first moving shaft 3100 and the second moving shaft 4100 are perpendicular to the supporting surface of the supporting portion 2100 and the lower sides of the first pressing plate 3304 and the second pressing plate 4304, that is, the lower sides of the first pressing plate 3304 and the second pressing plate 4304 are parallel to the supporting surface of the supporting portion 2100, when the battery cover plate body is supported on the supporting surface of the supporting portion 2100, the lower sides of the first pressing plate 3304 and the second pressing plate 4304 are parallel to the battery cover plate body, and the inner cavity of the first rotatable sleeve 3210 is matched with the first moving shaft 3100, during the downward movement of the first moving shaft 3100 and the second moving shaft 4100 driven by the first pressing cylinder and the second pressing cylinder, only the deflection inclination of the first moving shaft 3100 and the second moving shaft 4100 caused by the movement exists, that is, only the deflection inclination of the first pressing plate 3304 and the second pressing plate 4304 caused by the movement exists, and the lower sides of the first pressing plate 4303304 and the second pressing plate 4304 are inclined to a lesser extent, when first clamp plate 3304 and second clamp plate 4304 compress tightly two utmost point posts on two sealing rings, first clamp plate 3304 and second clamp plate 4304 are less with the oblique degree of two utmost point post pressure, can improve welding quality. The first moving shaft 3100 and the second moving shaft 4100 are both a single shaft, that is, the first moving shaft 3100 and the second moving shaft 4100 are not formed by connecting two or more sections, so that there is no tolerance for axial connection between the first moving shaft 3100 and the second moving shaft 4100, the lower ends of the first moving shaft 3100 and the second moving shaft 4100 are directly screwed to the driving shafts of the first pressing cylinder and the second pressing cylinder, respectively, the lower ends of the first rotatable sleeve 3210 and the second rotatable sleeve 4210 are located in the first lower guide hole 2201 and the second lower guide hole 2202, respectively, the upper ends of the first moving shaft 3100 and the second moving shaft 4100 are located in the first upper guide hole 2106 and the second upper guide hole 2107, respectively, and the inclination of the first moving shaft 3100 during the up-down movement can be reduced by the guiding action of the first lower guide hole 2201 and the first upper guide hole 2106, so that the inclination of the first moving shaft 3100 can be further reduced, under the guiding action of the second lower guide hole 2202 and the second upper guide hole 2107, the degree of inclination of the second movement shaft 4100 during the up-and-down movement can be reduced, and the degree of inclination of the pole pressed by the second pressing plate 4304 can be further reduced. The driving shaft of the first pressing cylinder and the first moving shaft 3100 are coaxially arranged, and the driving shaft of the second pressing cylinder and the second moving shaft 4100 are coaxially arranged, so that the space occupation can be reduced, the first moving shaft 3100 and the second moving shaft 4100 can be closer, and the battery cover plate pole welding tool can be suitable for a battery cover plate with a smaller center distance between two poles.

Example two

The difference between this embodiment and the first embodiment is that the positions of the connecting plates and the positions of the sliding grooves are different, the structure of the outer cover is also modified adaptively, and the rest parts are the same as those in the first embodiment.

As shown in fig. 18, the connection plates are different in position, in particular, in this embodiment, the upper end of the connection plate 2300 is fixed to the edge of one long side of the top plate 2101, the lower end of the connection plate 2300 is fixed to the edge of one long side of the bottom plate 2200, the top plate 2101 and the connection plate 2300 form a U-shaped structure with a forward opening, the first receiving space and the second receiving space are communicated with each other and are located in the opening of the U-shaped structure, the first rotary cylinder and the second rotary cylinder are fixed to the connection plate 2300, the driving shaft of the first rotary cylinder passes through the connection plate 2300 and then is fixedly connected to the first rack 5200 located in the opening of the U-shaped structure, and the driving shaft of the second rotary cylinder passes through the connection plate 2300 and then is fixedly connected to the second rack 6200 located in the opening of the U-shaped structure.

The positions of the sliding grooves are different, in this embodiment, the first sliding groove seat and the second sliding groove seat are eliminated, the first sliding groove 5220 and the second sliding groove 6220 are directly arranged on the bottom plate 2200, the first sliding rail 5230 on the first rack 5200 is slidably fitted in the first sliding groove 5220, and the second sliding rail 6230 on the second rack 6200 is slidably fitted in the second sliding groove 6220.

EXAMPLE III

The difference between this embodiment and the second embodiment is that there is only one third rotating device in this embodiment, and the third rotating device in this embodiment is different from the first rotating device and the second rotating device in structure, the housing structure is also modified adaptively, and the rest is the same as that in the second embodiment.

As shown in fig. 19, in particular, the rotating device includes a third gear 9100 fixed on the outer periphery of the first rotatable sleeve 3210, a fourth gear 9200 fixed on the outer periphery of the second rotatable sleeve 4210, a double-sided rack 9300 located between the third gear 9100 and the fourth gear 9200 and engaged with the third gear 9100 and the fourth gear 9200 simultaneously, and a third rotation driving mechanism 9400 driving the double-sided rack 9300 to reciprocate so as to rotate the third gear 9100 and the fourth gear 9200 simultaneously. The third rotary drive mechanism 9400 is a cylinder, or push rod motor.

The above examples only express preferred embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent should be subject to the appended claims.

Claims

1. The utility model provides a battery cover utmost point post welding frock which characterized in that includes:

a base having a supporting part for supporting the battery cover;

the pressing device is used for being matched with the supporting part to press the battery cover plate tightly, and comprises a moving shaft, a rotatable connecting frame arranged on the moving shaft, a pole pressing head arranged on the rotatable connecting frame and positioned above the supporting part, and a pressing driving mechanism used for driving the moving shaft to move up and down; viewed in the vertical direction, the rotatable connection frame partially covers the battery cover plate in the radial direction; and

2. The battery cover plate pole welding tool according to claim 1, characterized in that: the axial lead of the movable shaft is perpendicular to the supporting surface of the supporting part and the lower surface of the pole pressing head.

3. The battery cover plate pole welding tool according to claim 1, characterized in that: the rotatable connecting frame comprises a rotatable sleeve which is arranged around the periphery of the moving shaft and can rotate around the moving shaft, a connecting frame body which is connected with the rotatable sleeve and rotates along with the rotatable sleeve, and a limiting component which is used for limiting the connecting frame body so that the connecting frame body cannot move up and down relative to the moving shaft; the connecting frame body is provided with a connecting seat positioned on one side of the supporting part and a pressing seat positioned above the supporting part, the lower end of the connecting seat is connected with the rotatable sleeve, the upper end of the connecting seat is connected with the pressing seat, and one end, far away from the connecting seat, of the pressing seat is connected with the pole pressing head.

4. The battery cover plate pole welding tool according to claim 3, characterized in that: the base is also provided with a bottom plate formed below the supporting part and a connecting plate used for connecting the bottom plate and the supporting part, and an accommodating space is formed between the supporting part and the bottom plate; the supporting part is provided with an upper guide hole corresponding to the moving shaft, the moving shaft penetrates through the upper guide hole, the bottom plate is provided with a lower guide hole corresponding to the upper guide hole, the lower end of the moving shaft penetrates through the lower guide hole, the moving shaft is provided with a main body section, an upper guide section penetrating through the upper guide hole and a connecting section penetrating downwards and being connected with the pressing driving mechanism after penetrating through the lower guide hole, the rotatable sleeve is annularly arranged on the periphery of the main body section, and the main body section, the rotatable sleeve and the connecting seat are contained in the containing space.

5. The battery cover plate pole welding tool according to claim 4, characterized in that: the lower end of the rotatable sleeve is provided with a lower guide section matched with the lower guide hole, the lower guide section is of a conical structure with a large upper part and a small lower part, the small end part of the conical structure is loosely matched with the lower guide hole, and the large end part of the conical structure is in zero matching with the lower guide hole.

6. The battery cover plate pole welding tool according to claim 4, characterized in that: the supporting part comprises a top plate connected with the connecting plate, an insert hole formed in the position, corresponding to the lower guide hole, of the top plate, and an insert fixedly arranged in the insert hole and protruding out of the upper surface of the top plate; the upper guide hole penetrates through the insert along the height direction of the insert;

the battery cover plate pole column welding tool further comprises a feeding support plate used for supporting a battery cover plate, a limiting groove used for containing the battery cover plate and limiting the battery cover plate is formed in the upper surface of the feeding support plate, a positioning hole vertically penetrating through the feeding support plate is formed in the position, corresponding to the insert, in the limiting groove, the insert is arranged in the positioning hole in a penetrating mode, and the height of the upper surface of the insert is matched with the height of the bottom surface of the limiting groove.

7. The battery cover plate pole welding tool according to claim 3, characterized in that: the limiting assembly comprises an upper limiting piece and a lower limiting piece, wherein the upper limiting piece is used for limiting the rotatable sleeve and the connecting seat to move upwards, and the lower limiting piece is used for limiting the rotatable sleeve and the connecting seat to move downwards;

the rotating device comprises a gear fixedly arranged on the periphery of the rotatable sleeve, the upper end face of the gear and the upper end face of the rotatable sleeve are positioned on the same plane, and the connecting seat is connected with the gear through a pin rod so as to be fixed on the upper end face of the gear; an annular first ball groove is formed in the position, corresponding to the upper limiting piece, of the upper surface of the connecting seat, a plurality of first balls are arranged in the first ball groove, and each first ball is provided with a first rolling matching part protruding out of the first ball groove and in rolling matching with the upper limiting piece; an annular second ball groove is formed in the position, corresponding to the lower limiting piece, of the lower end face of the rotatable sleeve, a plurality of second balls are arranged in the second ball groove, and each second ball is provided with a second rolling matching portion protruding out of the corresponding second ball groove and in rolling matching with the lower limiting piece.

8. The battery cover plate pole welding tool according to claim 7, characterized in that: the upper limiting piece is a limiting plate arranged on the moving shaft, a first groove for accommodating the limiting plate is formed in the upper surface of the connecting seat, and the first ball groove is formed by downwards sinking from the groove bottom surface of the first groove.

9. The battery cover plate pole welding tool according to claim 7, characterized in that: the lower limiting piece is a pressing cylinder arranged on a moving shaft, and a connecting section of the moving shaft penetrates through the pressing cylinder downwards and then is locked at the output end of the pressing driving mechanism in a threaded manner; a second groove is formed at the position, corresponding to the pressing cylinder, of the lower end of the rotatable sleeve, and the second ball groove is formed by upwards sinking from the groove bottom of the second groove; the pressing cylinder is provided with a small outer diameter section accommodated in the second groove and a large outer diameter section which is abutted against the lower end face of the sleeve and is annularly arranged on the output end of the pressing driving mechanism, a first pin hole which is transversely communicated is formed on the moving shaft, a second pin hole which is transversely communicated is formed on the large outer diameter section at a position corresponding to the first pin hole, and a pin shaft is arranged in the first pin hole and the second pin hole in a penetrating manner so as to connect the pressing cylinder with the moving shaft.

10. The battery cover plate pole welding tool according to claim 3, characterized in that: the pole pressing head comprises a cylindrical bearing, a plane bearing, a vertical shaft and a pressing plate, the cylindrical bearing is fixed on the pressing seat and is far away from one end of the connecting seat, the plane bearing is arranged on the lower surface of the pressing seat, the vertical shaft and the moving shaft are arranged with the same axial lead, the upper end of the vertical shaft penetrates through a bearing hole of the plane bearing and is fixed in a bearing hole of the cylindrical bearing, and the pressing plate is located on the lower surface of the plane bearing and is connected with the lower end of the vertical shaft.