CN219626856U - Welding jig for pole terminal - Google Patents

Abstract

The utility model discloses a pole terminal welding jig which comprises a supporting and positioning mechanism for supporting and positioning a pole terminal, a pressing mechanism arranged on the upper side of the supporting and positioning mechanism, and a pressing driving mechanism for driving the pressing mechanism to descend and press the pole terminal, wherein the pressing driving mechanism is also used for driving the pressing mechanism to ascend so as to release the pressing of the pole terminal; the laser traversing channels penetrate through the upper side surface and the lower side surface of the pressing mechanism at the positions, corresponding to the pole terminals, to be welded, of the pressing mechanism, and the laser traversing channels are used for enabling laser to traverse downwards from the upper side of the pressing mechanism to the positions to be welded so as to weld the pole terminals. Due to the adoption of the technical scheme, the pole terminal welding jig is convenient for clamping the pole terminal.

Description

Welding jig for pole terminal

Technical Field

The utility model relates to the technical field of machining jigs, in particular to a pole terminal welding jig.

Background

The current post terminal comprises a current collecting disc, a post sheet, a sealing ring, an upper plastic, a top cover sheet, a lower plastic and a terminal, wherein the post terminal is required to be welded in the process of manufacturing the post terminal, the post terminal is required to be clamped before being welded, so that the sealing ring, the upper plastic, the top cover sheet and the lower plastic are clamped between the post sheet and the terminal, and then the post sheet and the terminal are subjected to laser welding so as to realize the assembly of the current collecting disc, the post sheet, the sealing ring, the upper plastic, the lower plastic and the terminal on the top cover sheet. However, since the post terminal is a newly developed post terminal, the welding jig matched with the terminal is still in a blank period of research and development, and at present, before welding the post terminal, a common clamp is used for clamping the post terminal, and the following disadvantages exist when the post terminal is clamped by the common clamp:

1. The pole terminal needs to be clamped manually, and the clamping of the pole terminal is inconvenient;

2. the positioning of the current collecting plate, the pole piece, the upper plastic, the top cover plate, the lower plastic and the terminal is inconvenient, resulting in low welding accuracy.

Disclosure of Invention

Aiming at the defects in the prior art, the utility model aims to solve the technical problems that: the pole terminal welding jig is convenient for clamping the pole terminal.

In order to solve the technical problems, the utility model adopts a technical scheme that: the pole terminal welding jig comprises a supporting and positioning mechanism for supporting and positioning the pole terminal, a pressing mechanism arranged on the upper side of the supporting and positioning mechanism, and a pressing driving mechanism for driving the pressing mechanism to descend and press the pole terminal, wherein the pressing driving mechanism is also used for driving the pressing mechanism to ascend so as to release the pressing of the pole terminal; and a laser traversing channel penetrating through the upper side surface and the lower side surface of the pressing mechanism is formed at the position, corresponding to the position to be welded, of the pole terminal, and the laser traversing channel is used for enabling laser to traverse downwards from the upper side of the pressing mechanism to the position to be welded so as to weld the pole terminal.

Further, the supporting and positioning mechanism comprises a supporting seat and an interchange unit which is positioned on the supporting seat and used for supporting and positioning the pole terminal, and the pressing and holding mechanism is arranged on the upper side of the interchange unit.

Further, the upper surface of the exchange unit is downwards concavely provided with a containing part for containing and positioning the pole terminal; the accommodating part comprises a current collecting disc positioning groove formed by downwards sinking from the upper surface of the exchange unit and matched with the current collecting disc, an upper plastic positioning groove formed by downwards sinking from the upper surface of the exchange unit and matched with the upper plastic, a top cover piece positioning groove formed by downwards sinking from the bottom wall of the upper plastic positioning groove and matched with the top cover piece, a lower plastic positioning groove formed by downwards sinking from the bottom wall of the top cover piece positioning groove and matched with the lower plastic, and a terminal positioning groove formed by downwards sinking from the bottom wall of the lower plastic positioning groove and matched with the terminal, wherein the current collecting disc positioning groove is positioned on one side of the upper plastic positioning groove and communicated with the upper plastic positioning groove.

Further, the exchange unit comprises a positioning seat and a positioning plate, wherein the positioning seat is supported and positioned on the supporting seat, the positioning plate is supported and positioned on the positioning seat, the positioning groove of the collecting plate and the positioning groove of the top cover sheet are formed by downwards sinking from the upper surface of the positioning seat, and the upper plastic positioning groove vertically penetrates through the positioning plate.

Further, the positioning seat comprises an interchange plate supported and positioned on the supporting seat, a positioning block arranged on the upper side of the interchange plate in a lifting manner, a pushing part arranged on the interchange plate and used for pushing the positioning block upwards, and an embedded part arranged on the interchange plate and corresponding to the terminal positioning groove; the positioning block is provided with a first through hole which vertically penetrates through the bottom wall of the lower plastic positioning groove and the lower surface of the exchange plate, the upper part of the embedded part is in sliding fit in the first through hole, and the terminal positioning groove is formed by the upper end surface of the embedded part and the hole wall of the first through hole.

Further, the embedded part is arranged on the exchange plate in a vertically sliding mode, and the pole terminal lifting mechanism is used for lifting the embedded part to enable the embedded part to lift the pole terminal upwards, so that the pole terminal is separated from the positioning block upwards.

Further, an accommodating groove is formed on the upper surface of the exchange plate in a downward sunken mode at a position corresponding to the first through hole, and a second through hole which vertically penetrates through the bottom wall of the accommodating groove and the lower surface of the exchange plate is formed on the exchange plate at a position corresponding to the first through hole; the inner embedded part comprises a sliding column, the upper part of which is in sliding fit with the first through hole, the lower part of which is in sliding fit with the second through hole, and a limiting part, the outer surface of which is formed by protruding outwards from the position of the outer surface of the sliding column corresponding to the accommodating groove, the lower surface of the limiting part is supported on the bottom wall of the accommodating groove, the upper surface of the limiting part is positioned below the upper surface of the exchange plate, and the upper end surface of the sliding column and the side wall of the upper end of the through hole form the terminal positioning groove; the jacking mechanism is used for jacking the sliding column upwards so as to enable the sliding column to move upwards and jack the pole terminal, and therefore the pole terminal is separated from the positioning block upwards.

Further, the supporting seat comprises a base, a supporting plate arranged above the base and a connecting part used for connecting the base and the supporting plate, and a third through hole vertically penetrating through the upper surface and the lower surface of the supporting plate is formed at a position corresponding to the second through hole in the supporting plate; the jacking mechanism comprises a jacking rod, a jacking driving mechanism and a jacking driving mechanism, wherein the upper end of the jacking rod is arranged in the third through hole, the jacking driving mechanism is arranged between the supporting plate and the base and used for driving the jacking rod to ascend so as to jack up the sliding column, and the jacking driving mechanism is also used for driving the jacking rod to descend so as to enable the sliding column to move downwards and reset.

Further, the pressing mechanism comprises a pressing part which is supported and positioned on the upper side of the supporting and positioning mechanism and is used for pressing the pole terminal, and a pressing part which is arranged above the pressing part and is used for pressing the pressing part, the pressing driving mechanism is used for driving the pressing part to descend and press the pressing part so as to press the pole terminal, and the pressing driving mechanism is also used for driving the pressing part to ascend and separate from the pressing part so as to release the pressing of the pole terminal.

Further, the pressing part comprises a pressing plate arranged at the output end of the pressing driving mechanism and an elastic block arranged on the pressing plate and used for pressing the abutting piece.

Due to the adoption of the technical scheme, the utility model has the beneficial effects that:

when the pole terminal welding jig is used for clamping the pole terminal, the supporting and positioning mechanism is used for supporting and positioning the pole terminal, and then the pressing and driving mechanism is used for driving the pressing and driving mechanism to descend and press the pole terminal, so that the clamping of the pole terminal can be realized. And then, the position to be welded of the pole terminal can be welded through a laser welding machine, and laser generated by the laser welding machine passes through the laser passing channel and acts on the position to be welded, so that the welding of the pole terminal can be realized. After welding is completed, the pressing mechanism is driven to ascend through the pressing driving mechanism so as to release the pressing of the pole terminal, and then the welded pole terminal can be taken out from the supporting and positioning mechanism. The welding jig for the pole terminal is convenient for clamping the pole terminal.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model and do not constitute a limitation on the utility model. In the drawings:

Fig. 1 is a schematic structural view of a post terminal;

FIG. 2 is a cross-sectional view A-A of FIG. 1;

FIG. 3 is a schematic diagram of a welding fixture for pole terminals according to the present utility model;

FIG. 4 is a schematic diagram of a combined structure of a supporting and positioning mechanism and a jacking mechanism in a pole terminal welding jig according to the present utility model;

FIG. 5 is a schematic diagram showing a combination structure of a supporting base and a jacking mechanism in a pole terminal welding jig according to the present utility model;

FIG. 6 is a schematic diagram of a structure of an exchanging unit in a pole terminal welding jig according to the present utility model;

FIG. 7 is a schematic diagram of a positioning seat in a welding fixture for pole terminals according to the present utility model;

FIG. 8 is a schematic view of the structure of an interchangeable plate in a pole terminal welding jig according to the present utility model;

FIG. 9 is a schematic view of a positioning block in a terminal welding jig for a pole according to the present utility model;

FIG. 10 is a schematic view of a positioning plate in a terminal welding jig of a pole according to the present utility model;

FIG. 11 is a schematic view of a press mechanism in a pole terminal welding jig according to the present utility model;

fig. 12 is a schematic structure of a pressing part in the pole terminal welding jig of the present utility model.

The meaning of the reference numerals in the drawings are:

a post terminal-1; a collecting tray-11; pole piece-12; a sealing ring-13; applying plastic cement-14; a top cover sheet-15; lower plastic-16; a terminal-17; strip-111; round sheet-112; a first circular hole-113; a pole piece body-121; welding groove-122; a first seal ring-131; a second seal ring-132; a first plastic plate-141; a plastic flange-142; a second circular hole-143; a top cover body-151; a first stepped hole-152; a second plastic plate-161; a second stepped hole-162; first plastic ring-163; a second plastic ring-164; a terminal lower portion-171; terminal upper portion-172; supporting a positioning mechanism-2; a pressing and holding mechanism-3; a pressing driving mechanism-4; a jacking mechanism-5; a support base-21; an exchange unit-22; a base-211; a support plate-212; a connection portion-213; a first positioning portion-214; third through hole-2121; a connecting post-2131; a first positioning post-2141; a second positioning post-2142; a housing part-221; positioning seat-222; a positioning plate-223; collecting disc positioning groove-2211; the plastic positioning groove-2212 is arranged; top cover positioning groove-2213; lower plastic positioning groove-2214; terminal positioning groove-2215; interchange plate-2221; a pushing section-2222; an insert-2223; a second positioning portion-2224; a positioning block-2225; a third positioning portion-2226; fourth positioning portion-2227; a receiving groove-22211; first spring mounting groove-22212; second through-hole-22213; first detent-22214; second positioning groove-22215; elastic member-22221; slide column-22231; a stop-22232; third positioning column-22241; a guide post-22242; first via-22251; positioning block body-22252; first insert-22253; second insert-22254; third positioning groove-22252 a; a second spring mounting groove 22252-b; guide hole-22252 c; first insert mounting groove-22252 d; second insert mounting groove-22252 e; first finger groove-22252 f; second finger groove-22252 g; first tunnel-22252 h; second tunnel-22253 a; fourth positioning column-22261; fifth positioning column-22271; a positioning plate body-2231; insert mounting hole-2232; third insert-2233; a first communication channel-22311; first positioning holes-22312; fourth through-hole-22313; second connecting channel-22331; first finger hole-22332; second finger hole-22333; a collision member-31; a pressing part-32; a collision plate-311; an interference protrusion-312; a fifth through hole-313; second locating holes-314; a platen-322; an elastic block-323; elastic block mounting groove-3221; sixth through hole-3222; seventh through-hole-3231; a holding drive unit 41; a push rod-51; a jack-up driving mechanism-52; a jack-up drive unit-521; and connecting plates-522.

Detailed Description

In order to make the objects, technical solutions and advantages of the present utility model more apparent, the technical solutions of the present utility model will be clearly and completely described below with reference to specific embodiments of the present utility model and corresponding drawings. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It will be understood that when an element is referred to as being "fixed 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 utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.

In order to clearly describe the welding jig for the post terminal of the present utility model, a specific structure of the post terminal is briefly described:

as shown in fig. 1 and 2, a post terminal 171 includes a current collecting plate 11, a post sheet 12, a seal ring 13, an upper plastic 14, a top cover sheet 15, a lower plastic 16, and a terminal 17. The collecting tray 11 includes a strip-shaped sheet 111, a circular sheet 112 provided at a first end of the strip-shaped sheet 111, and a first circular hole 113 formed at a second end of the strip-shaped sheet 111 and vertically penetrating through upper and lower sides of the strip-shaped sheet 111. The pole piece 12 includes a pole piece body 121 welded to the lower side surface of the strip-shaped piece 111, and a welding groove 122 formed by stretching downwards from the position of the pole piece body 121 corresponding to the first round hole 113. The seal ring 13 includes a first seal ring 131 disposed on the lower side of the pole piece body 121 and surrounding the outer wall of the welding groove 122, and a second seal ring 132 protruding downward from the inner hole edge of the first seal ring 131. The upper plastic 14 comprises a first plastic plate 141 arranged at the lower side of the pole piece body 121, a plastic flange 142 formed by protruding upwards from the edge of the first plastic plate 141, and a second round hole 143 formed in the middle of the first plastic plate 141 and corresponding to the position of the first sealing ring 131 and vertically penetrating through the upper side and the lower side of the first sealing ring, the second round hole 143 is arranged around the first sealing ring 131 in a surrounding manner, and the edge of the second round hole 143 is positioned in the edge range of the pole piece body 121. The top cover sheet 15 includes a top cover sheet body 151 disposed at the lower side of the first plastic plate 141, and a first step hole 152 formed on the top cover sheet body 151 and corresponding to the position of the welding groove 122, where the big hole section is communicated with the lower surface of the top cover sheet body 151, and the small hole section is communicated with the upper surface of the top cover sheet body 151, and the small hole section of the first step hole 152 is disposed on the second sealing ring 132 in a ring manner and is adapted to the second sealing ring 132. The lower plastic 16 includes a second plastic plate 161 disposed in the large hole section of the first step hole 152 and adapted to the large hole section of the first step hole 152, a second step hole 162 formed on the second plastic plate 161 and corresponding to the position of the welding groove 122, in which the large hole section is communicated with the lower surface of the second plastic plate 161, in which the small hole section is communicated with the upper surface of the second plastic plate 161, a first plastic ring 163 formed by protruding downward from the edge of the large hole section of the second step hole 162 and protruding out of the lower surface of the top cover sheet body 151, and a second plastic ring 164 formed by protruding upward from the upper surface of the second plastic plate 161 corresponding to the position of the small hole section edge and adapted to the inner hole of the second sealing ring 132. The terminal 17 includes a terminal lower portion 171 disposed in the large hole section of the second step hole 162 and adapted to the large hole section of the second step hole 162, and a terminal upper portion 172 formed by protruding upward from the upper surface of the terminal lower portion 171 corresponding to the small hole section of the second step hole 162, wherein the lower end of the terminal lower portion 171 protrudes downward from the lower end of the first plastic ring 163, and the upper end of the terminal upper portion 172 sequentially passes through the small Kong Duanyi of the second step hole 162 and the inner hole of the second plastic ring 164 upward and then is welded to the lower end of the welding groove 122.

As shown in fig. 3, an embodiment of the welding fixture for pole terminals of the present utility model includes a supporting and positioning mechanism 2, a pressing and holding mechanism 3, a pressing and holding driving mechanism 4 and a jacking mechanism 5, wherein the supporting and positioning mechanism 2 is used for supporting and positioning the pole terminal 171, the pressing and holding mechanism 3 is arranged on the upper side of the supporting and positioning mechanism 2, the pressing and holding driving mechanism 4 is used for driving the pressing and holding mechanism 3 to descend and press the pole terminal 171, and the pressing and holding driving mechanism 4 is also used for driving the pressing and holding mechanism 3 to ascend so as to release the pressing and holding of the pole terminal 171; a laser traversing channel penetrating through the upper and lower sides of the pressing mechanism 3 is formed at a position, corresponding to the position to be welded, of the pole terminal 171, and the laser traversing channel is used for allowing laser to traverse downwards from the upper side of the pressing mechanism 3 to the position to be welded so as to weld the pole terminal 171.

The welding jig for the pole terminal has the advantage of being convenient to clamp the pole terminal 171. When the pole terminal welding jig is used for clamping the pole terminal 171, the pole terminal 171 is supported and positioned by the supporting and positioning mechanism 2, and then the pressing and driving mechanism 4 drives the pressing and driving mechanism 3 to descend and press and hold the pole terminal 171, so that the clamping of the pole terminal 171 can be realized. And then, the position to be welded of the pole terminal 171 can be welded by a laser welder, and laser generated by the laser welder passes through the laser passing channel and acts on the position to be welded, so that the welding of the pole terminal 171 can be realized. After the welding is completed, the pressing mechanism 3 is driven to rise by the pressing driving mechanism 4 to release the pressing of the pole terminal 171, and then the welded pole terminal 171 can be taken out from the supporting and positioning mechanism 2. In the present embodiment, the jacking mechanism 5 is used to jack up the post terminal 171 from the supporting and positioning mechanism 2 after the welding of the post terminal 171 is completed, and the jacking mechanism 5 is not regarded as an essential element.

As shown in fig. 4, the supporting and positioning mechanism 2 includes a supporting seat 21 and an exchanging unit 22, the exchanging unit 22 is supported and positioned on the supporting seat 21, the exchanging unit 22 can move upwards and separate from the supporting seat 21, that is, the exchanging unit 22 can be removed from the supporting seat 21, and the exchanging unit 22 is used for supporting and positioning the pole terminal 171. The pressing mechanism 3 is provided on the upper side of the exchanging unit 22. The pole terminal welding jig of the present utility model can be configured with two or more exchanging units 22, wherein when one exchanging unit 22 supporting and positioning a pole terminal 171 is supported and positioned on the supporting seat 21, the pole terminal 171 to be welded can be mounted on the other exchanging unit 22, after the pole terminal 171 supported and positioned on the exchanging unit 22 on the supporting seat 21 is welded, the other exchanging unit 22 mounted with the pole terminal 171 to be welded can be directly replaced on the supporting seat 21, the situations of a robot and the like can be reduced, and the welding efficiency of the pole terminal 171 can be improved.

As shown in fig. 5, the support base 21 includes a base 211, a support plate 212, a connection portion 213, and a first positioning portion 214, the support plate 212 is disposed above the base 211, the connection portion 213 is used for connecting the base 211 and the support plate 212, a third through hole 2121 vertically penetrating through the upper and lower surfaces of the support plate 212 is formed in the support plate 212, the exchange unit 22 is supported on the support plate 212, and the first positioning portion 214 is used for positioning the exchange unit 22 on the support plate 212, so that the exchange unit 22 is supported and positioned on the support base 21.

The connecting portion 213 includes two vertically arranged connecting columns 2131, the lower ends of the connecting columns 2131 are fixed on the base 211, and the upper ends of the connecting columns 2131 are fixed on the support plate 212, so that the support plate 212 can be connected above the base 211, it is understood that the number of the connecting columns 2131 is not limited to two, and in other embodiments, the number of the connecting columns 2131 can be other.

The first positioning portion 214 includes two first positioning posts 2141 and four second positioning posts 2142 disposed on the connecting plate 522, and the exchanging unit 22 is positioned on the supporting plate 212 by the two first positioning posts 2141 and the four second positioning posts 2142. It is understood that in other embodiments, the first positioning posts 2141 and the second positioning posts 2142 may each be in other numbers.

As shown in fig. 6, the exchanging unit 22 includes a receiving portion 221, a positioning seat 222, and a positioning plate 223, where the receiving portion 221 is formed by recessing downward from an upper surface of the exchanging unit 22, the receiving portion 221 is used for receiving and positioning the pole terminal 171, the positioning seat 222 is supported and positioned on the supporting seat 21, specifically, the positioning seat 222 is supported and positioned on the supporting plate 212, the positioning seat 222 can move upward and separate from the supporting plate 212, i.e., the positioning seat 222 can be removed from the supporting plate 212, the positioning plate 223 is supported and positioned on the positioning seat 222, and the positioning plate 223 can move upward and separate from the positioning seat 222, i.e., the positioning plate 223 can be removed from the positioning seat 222.

The accommodating portion 221 includes a current collecting plate positioning groove 2211, an upper plastic positioning groove 2212, a top cover piece positioning groove 2213, a lower plastic positioning groove 2214, and a terminal positioning groove 2215, wherein the current collecting plate positioning groove 2211 is formed by recessing downwards from the upper surface of the exchange unit 22, and specifically, the current collecting plate positioning groove 2211 is formed by recessing downwards from the upper surface of the positioning seat 222. The collecting tray positioning groove 2211 is adapted to the collecting tray 11, specifically, the collecting tray positioning groove 2211 is adapted to the first end of the strip-shaped sheet 111 and the circular sheet 112. The upper plastic positioning groove 2212 is formed by recessing downwards from the upper surface of the exchange unit 22, specifically, the upper plastic positioning groove 2212 vertically penetrates through the positioning plate 223, the upper plastic positioning groove 2212 is adapted to the upper plastic 14, and the upper plastic positioning groove 2212 is located at one side of the collecting disc positioning groove 2211 and is communicated with the collecting disc positioning groove 2211. The top cover piece positioning groove 2213 is formed by downwards sinking from the groove bottom wall of the upper plastic positioning groove 2212, specifically, the top cover piece positioning groove 2213 is formed by downwards sinking from the upper surface of the positioning seat 222, the top cover piece positioning groove 2213 is matched with the top cover piece 15, and specifically, the top cover piece positioning groove 2213 is matched with the top cover piece body 151. The lower plastic positioning groove 2214 is formed by recessing downwards from the bottom wall of the top cover piece positioning groove 2213, the lower plastic positioning groove 2214 is matched with the lower plastic 16, and specifically, the lower plastic positioning groove 2214 is matched with the first plastic ring 163. The terminal positioning groove 2215 is formed by recessing from the bottom wall of the lower plastic positioning groove 2214, the terminal positioning groove 2215 is adapted to the terminal 17, and specifically, the terminal positioning groove 2215 is adapted to the terminal lower portion 171.

The accommodating part 221 can accommodate and position the current collecting tray 11 through the current collecting tray positioning groove 2211, can accommodate and position the upper plastic 14 through the upper plastic positioning groove 2212, can accommodate and position the top cover sheet 15 through the top cover sheet positioning groove 2213, can accommodate and position the lower plastic 16 through the lower plastic positioning groove 2214 and can accommodate and position the terminal 17 through the terminal positioning groove 2215. Before positioning the post terminal 171, the post sheet 12 is welded to the current collecting plate 11, and positioning of the post sheet 12 is completed while positioning the current collecting plate 11, that is, the accommodating portion 221 can position the current collecting plate 11, the post sheet 12, the upper plastic 14, the top cover sheet 15, the lower plastic 16 and the terminal 17, so that positioning accuracy of the post terminal 171 is high, and further welding accuracy of the post terminal 171 is high.

In this embodiment, the diameter of the top cover sheet 15 is larger than that of the upper plastic 14, since the upper plastic positioning groove 2212 is formed in the positioning plate 223 and the positioning plate 223 can be removed from the positioning seat 222, when the pole terminal 171 needs to be placed in the accommodating portion 221, the positioning plate 223 is removed from the positioning seat 222, then the terminal 17 is placed in the terminal positioning groove 2215, the lower plastic 16 is placed in the lower plastic positioning groove 2214, and the top cover sheet 15 is placed in the top cover sheet positioning groove 2213 in sequence from bottom to top, then the positioning plate 223 is supported and positioned on the positioning seat 222, and the upper plastic 14 is placed in the upper plastic positioning groove 2212, then the current collecting plate 11 is placed in the current collecting plate positioning groove 2211, specifically, the second end of the strip sheet 111 and the pole 12 welded to the lower side of the second end of the strip sheet 111 are positioned in the current collecting plate positioning groove 2211, and the pole terminal 171 is positioned in the position corresponding to the position of the top cover sheet 2212, thus the top cover sheet 2213 can be prevented from being positioned in the top cover sheet 15, and thus the top cover sheet 2213 can be prevented from being positioned in the position of the top cover sheet 15.

As shown in fig. 7, the positioning base 222 includes an exchange plate 2221, a pressing portion 2222, an inner insert portion 2223, a second positioning portion 2224, a positioning block 2225, a third positioning portion 2226, and a fourth positioning portion 2227, the exchange plate 2221 is supported and positioned on the support base 21, the positioning block 2225 is liftably disposed on the upper side of the exchange plate 2221, the pressing portion 2222 is disposed on the exchange plate 2221, the pressing portion 2222 is used for pressing the positioning block 2225 upward, the inner insert portion 2223 is disposed on the exchange plate 2221 at a position corresponding to the terminal positioning groove 2215, the second positioning portion 2224 is used for positioning the positioning block 2225, and the current collecting tray positioning groove 2211, the top cover piece positioning groove 2213, the lower plastic positioning groove 2214, and the terminal positioning groove 2215 are all disposed on the positioning block 2225.

As shown in fig. 7 and 8, the top surface of the interchange plate 2221 is formed with a receiving groove 22211 that is recessed downward, and the top surface of the interchange plate 2221 is formed with four first elastic member mounting grooves 22212, it will be understood that the first elastic member mounting grooves 22212 are not limited to four, and for example, in some embodiments, the first elastic member mounting grooves 22212 may be other numbers, and for example, in other embodiments, the first elastic member mounting grooves 22212 may not be provided on the interchange plate 2221. The interchange plate 2221 is formed with a second through hole 22213 that vertically penetrates through the bottom wall of the accommodation groove 22211 and the lower surface of the interchange plate 2221, the second through hole 22213 being located on the interchange plate 2221 at a position corresponding to the third through hole 2121. The lower surface of the exchange plate 2221 is formed with a first positioning groove 22214 corresponding to the first positioning columns 2141, the lower surface of the exchange plate 2221 is formed with a second positioning groove 22215 corresponding to the second positioning columns 2142, when the exchange plate 2221 is placed on the support plate 212, the first positioning columns 2141 are respectively located in the corresponding first positioning grooves 22214, and the second positioning columns 2142 are respectively located in the corresponding second positioning grooves 22215, so that the support positioning of the exchange plate 2221 on the support plate 212, that is, the support positioning of the exchange unit 22 on the support seat 21, can be achieved.

As shown in fig. 7, the pressing portion 2222 includes four elastic members 22221 disposed in one-to-one correspondence with the four first elastic member mounting grooves 22212, the elastic members 22221 are coil springs or elastic rubber columns, each elastic member 22221 is disposed in the corresponding first elastic member mounting groove 22212, and the upper end of the elastic member 22221 protrudes from the upper surface of the exchange plate 2221, so that the pressing portion 2222 presses the positioning block 2225 upward under the elastic action of the elastic member 22221. It is understood that the spring 22221 is not limited to four, for example, in some embodiments, the spring 22221 may be other numbers. In addition, the lower end of the elastic member 22221 is not limited to be mounted in the first elastic member mounting groove 22212, and for example, in some embodiments, the elastic member 22221 may be directly fixed on the upper surface of the exchange plate 2221.

The inner insert portion 2223 is disposed on the exchange plate 2221 in a vertically sliding manner, the inner insert portion 2223 includes a sliding column 22231 and a limiting piece 22232, the lower portion of the sliding column 22231 is in sliding fit with the second through hole 22213, the limiting piece 22232 is formed by protruding outwards from the outer surface of the sliding column 22231 at the position corresponding to the accommodating groove 22211, the lower surface of the limiting piece 22232 is supported on the bottom wall of the accommodating groove 22211, the upper surface of the limiting piece 22232 is located below the upper surface of the exchange plate 2221, through the sliding fit of the lower portion of the sliding column 22231 and the second through hole 22213, lifting of the inner insert portion 2223 on the exchange plate 2221 is achieved, when the limiting piece 22232 abuts against the bottom wall of the accommodating groove 22211, the sliding column 22231 cannot continue to move downwards, namely, the limiting piece 22232 can limit the limit position of the sliding column 22231 to move downwards. In this embodiment, the limiting member 22232 is a limiting ring disposed around the sliding column 22231, it is understood that the limiting member 22232 is not limited to be a limiting ring, for example, in some embodiments, the limiting member 22232 may be a limiting bump protruding from one side of the sliding column 22231. In addition, the insert 2223 is not limited to the above-described structure, and for example, in some embodiments, the insert 2223 may be a fixing post fixedly disposed on the upper side of the exchange plate 2221.

The second positioning portion 2224 includes four third positioning columns 22241 disposed on the upper side of the exchange plate 2221, and two guide columns 22242 disposed on the upper side of the exchange plate 2221 and having upper ends protruding from the upper side of the exchange plate 2221, and the positioning block 2225 is positioned on the exchange plate 2221 by the four third positioning columns 22241 and the two guide columns 22242, and in addition, the guide columns 22242 are further used for guiding lifting of the positioning block 2225. It is understood that the third positioning columns 22241 are not limited to four, for example, in some embodiments, the third positioning columns 22241 may be other numbers, and the guiding columns 22242 are not limited to two, for example, in some embodiments, the guiding columns 22242 may be other numbers.

The positioning block 2225 is formed with a first through hole 22251 vertically penetrating through the bottom wall of the lower plastic positioning groove 2214 and the lower surface of the exchange plate, specifically, the first through hole 22251 is formed on the positioning block 2225 at a position corresponding to the accommodating groove 22211 and the second through hole 22213, the upper portion of the embedded portion 2223 is slidably fitted in the first through hole 22251, specifically, the upper portion of the sliding column 22231 is slidably fitted in the first through hole 22251, the terminal positioning groove 2215 is formed by the upper end surface of the embedded portion 2223 and the hole wall of the first through hole 22251, specifically, the terminal positioning groove 2215 is formed by the upper end surface of the sliding column 22231 and the upper end side wall of the through hole. After the pressing driving mechanism 4 drives the pressing mechanism 3 to raise and release the pressure on the positioning block 2225, the pressing portion 2222 lifts up the positioning block 2225 by a certain distance, and then the first through hole 22251 moves up on the sliding column 22231 by a certain distance, that is, the first through hole 22251 moves up on the insert portion 2223 by a certain distance, so that the depth of the positioning groove increases, and the positioning of the terminal 17 is easier.

The positioning block 2225 includes a positioning block body 22252 supported and positioned on the exchange plate 2221, a first insert 22253 provided on the positioning block body 22252 and corresponding to the top cover positioning slot 2213, and a second insert 22254 provided on the positioning block body 22252 and corresponding to the current collecting tray positioning slot 2211, wherein the top cover positioning slot 2213, the lower plastic positioning slot 2214 and the terminal positioning slot 2215 are all formed on the first insert 22253, and the current collecting tray positioning slot 2211 is formed on the second insert 22254. The first insert 22253 and the second insert 22254 are made of plastic materials, and the possibility of scratching the current collecting plate 11, the top cover sheet 15, the lower plastic 16 and the terminal 17 can be reduced when the holding mechanism 3 holds the post terminal 171 due to the lower hardness of the plastic materials.

As shown in fig. 7 and 9, the lower surface of the positioning block body 22252 is formed with a third positioning groove 22252a corresponding to each third positioning column 22241 and recessed upward at a position corresponding to each third positioning column 22241, and the lower surface of the positioning block body 22252 is formed with a second elastic member mounting groove 22252b corresponding to each elastic member 22221 and recessed upward at a position corresponding to each elastic member 22221, it is understood that the second elastic member mounting groove 22252b is not considered as a necessary structure, and the upper end of the elastic member 22221 is not limited to be mounted in the second elastic member mounting groove 22252b, for example, in some embodiments, the elastic member 22221 may also directly abut against the lower surface of the positioning block body 2252. The positioning block body 22252 is provided with guide holes 22252c vertically penetrating through the upper and lower sides of the positioning block body 22252 and adapted to the guide columns 22242, and the positioning of the positioning block body 22252 on the exchange plate 2221, that is, the positioning of the positioning block 2225 on the exchange plate 2221, can be achieved by the cooperation of the third positioning groove 22252a and the third positioning column 22241 and the cooperation of the guide columns 22242 and the guide holes 22252 c. The guiding function of the lifting of the positioning block body 22252 can be further performed by the cooperation of the guiding column 22242 and the guiding hole 22252c, so that the lifting of the positioning block body 22252 is more stable. The upper side of the positioning block body 22252 is formed with a first insert mounting groove 22252d adapted to the first insert 22253 at a position corresponding to the first insert 22253, the first insert 22253 is disposed in the first insert mounting groove 22252d, the upper side of the positioning block body 22252 is formed with a second insert mounting groove 22252e adapted to the second insert 22254 at a position corresponding to the second insert 22254, the second insert 22254 is disposed in the second insert mounting groove 22252e, the upper surface of the positioning block body 22252 is further formed with a first finger groove 22252f disposed at one side of the first insert mounting groove 22252d and a second finger groove 22252g disposed at the other opposite side of the first insert mounting groove 22252d, and the first finger groove 22252f and the second finger groove 22252g are both communicated with the top cover positioning plate positioning groove 2213. When the top cover sheet 15 is placed in the top cover sheet positioning groove 2213, two fingers are used for holding the two side edges of the top cover sheet 15 and placing the top cover sheet 15 in the top cover sheet positioning groove 2213, when the top cover sheet 15 is placed in the top cover sheet positioning groove 2213, the two fingers are respectively positioned at the positions of the first finger groove 22252f and the second finger groove 22252g, and the first finger groove 22252f and the second finger groove 22252g can have an avoidance effect on the two fingers, so that the top cover sheet 15 is placed in the top cover sheet positioning groove 2213 more conveniently. A first hole 22252h communicating with the lower side surface of the positioning block body 22252 is formed on the positioning block body 22252 at a position corresponding to the first through hole 22251.

As shown in fig. 7, the first insert 22253 is recessed downward at a position corresponding to the lower plastic positioning groove 2214 to form a second hole 22253a vertically penetrating through the bottom wall of the lower plastic positioning groove 2214 and the lower surface of the first insert 22253, the second hole 22253a and the first hole 22252h are opposite to each other to form the first through hole 22251, and the upper end surface of the sliding column 22231 and the hole wall of the second hole 22253a form the terminal positioning groove 2215. The upper surface of the second insert 22254 is recessed downward to form the collecting tray positioning groove 2211, and the collecting tray positioning groove 2211 communicates with the side surface of the second insert 22254 facing the first insert 22253.

The third positioning portion 2226 is configured to position the positioning plate 223 on the positioning block body 22252, and the third positioning portion 2226 includes two fourth positioning columns 22261 provided on the positioning block body 22252, it will be understood that the fourth positioning columns 22261 are not limited to two, and in other embodiments, the fourth positioning columns 22261 may have other numbers of more than two. The fourth positioning portion 2227 includes two fifth positioning columns 22271 disposed on the positioning block body 22252, and the upper ends of the fifth positioning columns 22271 pass through the positioning plate 223 upwards and then are located above the positioning plate 223.

As shown in fig. 10, the positioning plate 223 includes a positioning plate body 2231, an insert mounting hole 2232 formed in the positioning plate body 2231 at a position corresponding to the receiving portion 221, and a third insert 2233 provided in the insert mounting hole 2232. A first connecting channel 22311, one end of which is communicated with the current collecting disc positioning groove 2211 and the other end of which is communicated with the insert mounting hole 2232, is formed on the positioning plate body 2231 at a position corresponding to the current collecting disc positioning groove 2211, and a first positioning hole 22312 which vertically penetrates through the positioning plate body 2231 is formed on the positioning plate body 2231 at a position corresponding to each fourth positioning column 22261, so that the positioning of the positioning plate body 2231 on the positioning block body 22252 is realized through the cooperation of the first positioning holes 22312 and the fourth positioning columns 22261, namely the supporting positioning of the positioning plate 223 on the positioning seat 222 is realized. The positioning plate body 2231 is formed with a fourth through hole 22313 vertically penetrating through the positioning plate body 2231 at a position corresponding to each of the fifth positioning posts 22271, and the upper end of the fifth positioning post 22271 passes through the positioning plate body 2231 through the fourth through hole 22313 and then is located above the positioning plate body 2231.

The third insert 2233 is formed with the upper plastic positioning groove 2212 vertically penetrating through the third insert 2233 at a position corresponding to the top cover piece positioning groove 2213, and the third insert 2233 is formed with a second communication channel 22331 having one end communicating with the first communication channel 22311 and the other end communicating with the upper plastic positioning groove 2212 at a position corresponding to the first communication channel 22311, so that the current collecting tray positioning groove 2211 and the upper plastic positioning groove 2212 can be communicated through the first communication channel 22311 and the second communication channel 22331. The third insert 2233 is made of plastic material, and thus, the possibility of the upper plastic 14 being scratched when the pressing mechanism 3 presses the pole terminal 171 can be reduced due to the lower hardness of the plastic material. A first finger hole 22332 vertically penetrating the third insert 2233 and communicating with the upper plastic positioning groove 2212 is formed at a position of the third insert 2233 corresponding to the first finger groove 22252f, and a second finger hole 22333 vertically penetrating the third insert 2233 and communicating with the upper plastic positioning groove 2212 is formed at a position of the third insert 2233 corresponding to the second finger groove 22252 g. When the upper plastic 14 is placed in the upper plastic positioning groove 2212, two fingers are used to hold the two side edges of the upper plastic 14 and put the upper plastic 14 into the upper plastic positioning groove 2212, when the upper plastic 14 is placed in the upper plastic positioning groove 2212, the two fingers are respectively positioned at the positions of the first finger hole 22332 and the second finger hole 22333, and the first finger hole 22332 and the second finger hole 22333 can take avoidance action on the two fingers, so that the upper plastic 14 is more convenient to be placed in the upper plastic positioning groove 2212.

As shown in fig. 11, the holding mechanism 3 includes a pressing member 31 and a holding portion 32, the pressing member 31 is supported and positioned on the upper side of the supporting and positioning mechanism 2 and is used for pressing the pole terminal 171, the holding portion 32 is disposed above the pressing member 31, the holding portion 32 is used for holding the pressing member 31, the holding driving mechanism 4 is used for driving the holding portion 32 to descend and hold the pressing member 31, so as to hold the pole terminal 171, and the holding driving mechanism 4 is also used for driving the holding portion 32 to ascend and separate from the pressing member 31, so as to release the holding of the pole terminal 171. It will be appreciated that the pressing mechanism 3 is not limited to the above-described structure, and for example, in some embodiments, the abutting member 31 may be fixed on the pressing portion 32 and can be lifted up and down along with the pressing portion 32.

The abutting piece 31 includes an abutting plate 311 supported and positioned on the positioning plate body 2231, an abutting protrusion 312 protruding downward from a position of the lower side surface of the abutting plate 311 corresponding to the middle of the upper plastic 14, and a fifth through hole 313 formed on the abutting plate 311 corresponding to the position to be welded and penetrating through the upper side surface of the abutting plate 311 and the lower end surface of the abutting protrusion 312. The position of the abutting plate 311 corresponding to each of the fifth positioning posts 22271 is formed with a second positioning hole 314 vertically penetrating the abutting plate 311 and adapted to the fifth positioning post 22271. The second positioning hole 314 and the fifth positioning post 22271 cooperate to realize the supporting and positioning of the abutting plate 311 on the positioning plate 223, that is, the supporting and positioning of the abutting member 31 on the positioning plate 223. After the supporting and positioning of the supporting member 31 on the positioning plate 223, the lower end surface of the supporting protrusion 312 is supported and positioned on the portion of the collecting tray 11 located in the positioning hole of the upper plastic 14, and the edge of the fifth through hole 313 surrounds the first circular hole 113.

As shown in fig. 12, the pressing portion 32 includes a pressing plate 322 and an elastic block 323, the pressing plate 322 is disposed at an output end of the pressing driving mechanism 4, the elastic block 323 is disposed at a lower side of the pressing plate 322, specifically, an elastic block mounting groove 3221 adapted to the elastic block 323 is formed by recessing a lower side surface of the pressing plate 322, an upper portion of the elastic block 323 is embedded and fixed in the elastic block mounting groove 3221, a lower portion of the elastic block 323 protrudes out of a lower side surface of the pressing plate 322, the elastic block 323 may be a high-strength rubber block or an elastic rubber block, the elastic block 323 is used for pressing the pressing member 31, and specifically, the elastic block 323 is used for pressing the pressing plate 311. When the terminal 17 needs to be pressed, the pressing driving mechanism 4 drives the pressing plate 322 to descend, the elastic block 323 descends along with the pressing plate 322 and presses the abutting plate 311, and the abutting plate 311 presses the terminal 17 and compresses the sealing ring 13. The abutting piece 31 is pressed by the elastic block 323, so that the abutting plate 311 can be uniformly stressed even when the pressing plate 322 is slightly inclined, various parts of the sealing ring 13 can be more uniformly compressed, and the quality of the finished pole terminal 171 can be ensured. It will be appreciated that the pressing portion 32 is not limited to the above-described structure, for example, in some embodiments, the lower side of the pressing plate 322 is a plane, and the elastic rubber block is directly adhered and fixed to the lower side of the pressing plate 322.

A sixth through hole 3222 vertically penetrating through the upper surface of the pressing plate 322 and the bottom wall of the elastic block mounting groove 3221 is formed on the pressing plate 322 at a position corresponding to the fifth through hole 313, a seventh through hole 3231 vertically penetrating through the upper and lower sides of the elastic block 323 at a position corresponding to the sixth through hole 3222 is formed, and the fifth through hole 313, the sixth through hole 3222 and the seventh through hole 3231 together form the laser traversing channel.

As shown in fig. 3, the pressing driving mechanism 4 includes two pressing driving units 41 disposed on the bottom plate, two ends of the pressing plate 322 are respectively fixed on output shafts of the two pressing driving units 41, and the pressing driving units 41 may be an air cylinder, a hydraulic cylinder or a push rod motor. It will be appreciated that the holding drive unit 41 included in the holding drive mechanism 4 is not limited to two, and that in other embodiments, the holding drive unit 41 included in the holding drive mechanism 4 may be other numbers.

The lifting mechanism 5 is used for lifting the inner insert part 2223 to enable the inner insert part 2223 to lift the pole terminal 171 upwards, so that the pole terminal 171 is separated from the positioning block 2225 upwards, namely, the lifting mechanism 5 is used for lifting the sliding column 22231 upwards to enable the sliding column 22231 to move upwards and lift the pole terminal 171, so that the pole terminal 171 is separated from the positioning block 2225 upwards, specifically, the current collecting disc 11 is separated from the current collecting disc positioning groove 2211 upwards, and the top cover sheet 15, the lower plastic 16 and the terminal 17 are separated from the top cover sheet positioning groove 2213, the lower plastic positioning groove 2214 and the terminal positioning groove 2215 respectively. After the jacking mechanism 5 and the sliding column 22231 jack up the pole terminal 171 to be separated from the positioning block 2225, a worker can conveniently hold the round piece 112 at the first end of the collecting disc 11 by hand to take out the welded pole terminal 171, and the worker does not need to hold the top cover piece 15 by hand through the first finger groove 22252f and the second finger groove 22252g to take out the pole terminal 171, so that the worker can be prevented from being scalded by residual heat left on the top cover piece 15 due to high temperature generated during laser welding, and the safety of the pole terminal welding jig can be improved.

As shown in fig. 5, the jacking mechanism 5 includes a jack 51 and a jacking driving mechanism 52, the upper end of the jack 51 is disposed in the third through hole 2121, the jacking driving mechanism 52 is disposed between the support plate 212 and the base 211, the jacking driving mechanism 52 is configured to drive the jack 51 to lift up to jack up the sliding column 22231, and the jacking driving mechanism 52 is further configured to drive the jack 51 to descend to move down the sliding column 22231 for resetting, even if the sliding column 22231 moves down until the limiting member 22232 is supported on the bottom wall of the accommodating groove 22211. The jacking driving mechanism 52 includes a jacking driving unit 521, and a connection plate 522 provided on the jacking driving unit 521 and used for connecting an output shaft of the jacking driving unit 521 and the jack 51, where the jacking driving unit 521 may be an air cylinder, a hydraulic cylinder, or a push rod motor. It will be appreciated that the jack drive mechanism 52 is not limited to the above described configuration, for example, in some embodiments, the jack drive mechanism 52 may include only the jack drive unit 521, and the jack 51 may be directly connected to the output shaft of the jack drive unit 521.

The use principle of the welding jig for the pole terminal is as follows:

Placing the post terminal 171 to be welded on the exchange portion: the terminal 17 is placed in the terminal positioning groove 2215 with the terminal upper portion 172 facing upward, that is, the terminal 17 is placed in the second hole 22253a, and the lower end of the terminal lower portion 171 is supported on the upper end of the sliding column 22231. The lower plastic 16 is placed in the lower plastic positioning groove 2214, i.e., the second plastic plate 161 is placed in the top cover sheet positioning groove 2213 and the first plastic ring 163 is positioned in the lower plastic positioning groove 2214. The top cover piece 15 is placed in the top cover piece positioning groove 2213, so that the second plastic plate 161 is positioned in the large hole section of the first step hole 152, and the second plastic ring 164 is positioned in the small hole section of the first step hole 152. The sealing ring 13 is placed on the top cover sheet 15, so that the first sealing ring 131 is supported on the top cover sheet 15, and the second sealing ring 132 is located in the small hole section of the first step hole 152 and is annularly arranged on the second plastic ring 164. The positioning plate 223 is placed on the positioning block 2225, so that each fourth positioning column 22261 is located in a corresponding first positioning hole 22312 on the positioning plate body 2231, and each fifth positioning column 22271 is located in a corresponding fourth positioning hole 22313 on the positioning plate body 2231, and at this time, the supporting and positioning of the positioning plate 223 on the positioning block 2225 are completed. The upper plastic 14 is placed in the upper plastic positioning groove 2212, so that the first plastic plate 141 is supported on the top cover plate body 151, and the second round hole 143 is formed around the first sealing ring 131. Then, the collecting tray 11 is placed in the collecting tray positioning groove 2211, that is, the circular sheet 112 and the first end of the strip-shaped sheet 111 are placed in the collecting tray positioning groove 2211, so that the second end of the strip-shaped sheet 111 and the pole piece 12 welded to the second end of the strip-shaped sheet 111 are positioned in the upper plastic positioning groove 2212, and the pole piece body 121 is supported on the first sealing ring 131, and the welding groove 122 is positioned in the first sealing ring 131. The abutting piece 31 is disposed on the upper side of the positioning plate 223, so that each second positioning hole 314 on the abutting plate 311 is respectively connected to the corresponding fifth positioning post 22271 in series, at this time, the lower end surface of the abutting protrusion 312 abuts against the second end of the strip 111, and the edge of the fifth through hole 313 surrounds the first circular hole 113. At this time, the placement of the post terminal 171 to be welded on the interchanged part is completed.

The interchangeable part support where the post terminal 171 to be welded is placed is positioned on the support base 21: the interchange plate 2221 is supported on the support plate 212, and each of the first positioning posts 2141 is located in the corresponding first positioning slot 22214, and each of the second positioning posts 2142 is located in the corresponding second positioning slot 22215. At this time, the support positioning of the exchanging portion on the support base 21 is completed.

The pole terminal 171 is pressed by the pressing mechanism 3: the pressing plate 322 is driven to descend by the pressing driving mechanism 4, the elastic block 323 descends along with the pressing plate 322 and presses the pressing plate 311, the pressing plate 311 presses the terminal 17 and compresses the sealing ring 13, meanwhile, the pressing piece 31, the positioning plate 223 and the positioning block 2225 are pressed down to move and compress the elastic piece 22221, the collecting tray 11, the pole piece 12, the upper plastic 14, the top cover piece 15 and the lower plastic 16 move down along with the positioning plate 223 and the positioning block 2225 until the lower surface of the welding groove 122 of the pole piece 12 is pressed against the terminal 17 supported at the upper end of the sliding post 22231, and the lower surface of the welding groove 122 of the specific pole piece 12 presses the terminal upper portion 172 and the terminal upper portion 172 is located in the small hole section of the second step hole 162 and the second plastic ring 164. This completes the compression of the post terminal 171.

Welding the post terminal 171: the laser generated by the laser welder passes through the laser passing channel and acts on the position to be welded, specifically acts on the bottom wall of the welding groove 122, so that the welding of the pole terminal 171 can be realized.

And (3) taking out the welded post terminal 171: the pressing plate 322 is driven to rise by the pressing driving mechanism 4, and the elastic block 323 rises along with the pressing plate 322 and is separated from the abutting plate 311 until the pressing plate 322 and the elastic block 323 move to a certain distance above the abutting plate 311. The pressing portion 2222 presses the positioning block 2225 upward to move the positioning block 2225, the positioning plate 223, and the interference piece 31 upward for return. The interference plate 311 is manually moved upward to take out the interference plate 311 from the positioning plate 223 upward. The positioning plate 223 is manually moved upward to take out the positioning plate 223 upward from the positioning block 2225. The jacking driving unit 521 drives the connecting plate 522 to ascend, and the ejector rod 51 ascends along with the connecting plate 522 and pushes the sliding rod upwards, so that the sliding rod can jack up the welded pole terminal 171, and the pole terminal 171 is separated from the positioning block 2225 upwards. Finally, a worker holds the circular plate 112 of the first end of the current collecting plate 11 with his/her hand to remove the welded terminal 171 from the positioning block 2225.

Finally, the interchange plate 2221 is moved upward and the interchange plate 2221 is removed from the support plate 212 to remove the positioning seat 222 from the support plate 212, and then the other interchange unit 22, on which the pole terminal 171 to be welded is mounted, is supported and positioned on the support plate 212 to facilitate pressing and welding of the other pole terminal 171.

The foregoing examples only represent preferred embodiments of the present utility model, which are described in more detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims (10)

1. A pole terminal welding jig which is characterized in that: the device comprises a supporting and positioning mechanism for supporting and positioning the pole terminal, a pressing mechanism arranged on the upper side of the supporting and positioning mechanism, and a pressing driving mechanism for driving the pressing mechanism to descend and press the pole terminal, wherein the pressing driving mechanism is also used for driving the pressing mechanism to ascend so as to release the pressing of the pole terminal; and a laser traversing channel penetrating through the upper side surface and the lower side surface of the pressing mechanism is formed at the position, corresponding to the position to be welded, of the pole terminal, and the laser traversing channel is used for enabling laser to traverse downwards from the upper side of the pressing mechanism to the position to be welded so as to weld the pole terminal.

2. The pole terminal welding jig of claim 1, wherein: the support positioning mechanism comprises a support seat and an interchange unit which is positioned on the support seat and used for supporting and positioning the pole terminal, and the pressing mechanism is arranged on the upper side of the interchange unit.

3. The pole terminal welding jig according to claim 2, wherein: the upper surface of the exchange unit is downwards recessed to form a containing part for containing and positioning the pole terminal; the accommodating part comprises a current collecting disc positioning groove formed by downwards sinking from the upper surface of the exchange unit and matched with the current collecting disc of the pole terminal, an upper plastic positioning groove formed by downwards sinking from the upper surface of the exchange unit and matched with the upper plastic of the pole terminal, a top cover piece positioning groove formed by downwards sinking from the bottom wall of the upper plastic positioning groove and matched with the top cover piece of the pole terminal, a lower plastic positioning groove formed by downwards sinking from the bottom wall of the top cover piece positioning groove and matched with the lower plastic of the pole terminal, and a terminal positioning groove formed by downwards sinking from the bottom wall of the lower plastic positioning groove and matched with the terminal, wherein the current collecting disc positioning groove is positioned on one side of the upper plastic positioning groove and communicated with the upper plastic positioning groove.

4. A post terminal welding jig according to claim 3, wherein: the exchange unit comprises a positioning seat and a positioning plate, wherein the positioning seat is supported and positioned on the supporting seat, the positioning plate is supported and positioned on the positioning seat, the positioning groove of the collecting disc and the positioning groove of the top cover sheet are formed by downwards sinking from the upper surface of the positioning seat, and the upper plastic positioning groove vertically penetrates through the positioning plate.

5. The pole terminal welding jig of claim 4, wherein: the positioning seat comprises an interchange plate, a positioning block, a pushing part and an embedded part, wherein the interchange plate is supported and positioned on the supporting seat, the positioning block is arranged on the upper side of the interchange plate in a lifting mode, the pushing part is arranged on the interchange plate and used for pushing the positioning block upwards, and the embedded part is arranged on the interchange plate and corresponds to the terminal positioning groove; the positioning block is provided with a first through hole which vertically penetrates through the bottom wall of the lower plastic positioning groove and the lower surface of the exchange plate, the upper part of the embedded part is in sliding fit in the first through hole, and the terminal positioning groove is formed by the upper end surface of the embedded part and the hole wall of the first through hole.

6. The pole terminal welding jig of claim 5, wherein: the embedded part is arranged on the exchange plate in a vertically sliding mode, and the pole terminal lifting mechanism is used for lifting the embedded part to enable the embedded part to lift the pole terminal upwards, so that the pole terminal is separated from the positioning block upwards.

7. The pole terminal welding jig of claim 6, wherein: an accommodating groove is formed on the upper surface of the exchange plate in a downward sunken mode at the position corresponding to the first through hole, and a bottom wall vertically penetrating through the accommodating groove and a second through hole on the lower surface of the exchange plate are formed on the exchange plate at the position corresponding to the first through hole; the inner embedded part comprises a sliding column, the upper part of which is in sliding fit with the first through hole, the lower part of which is in sliding fit with the second through hole, and a limiting part, the outer surface of which is formed by protruding outwards from the position of the outer surface of the sliding column corresponding to the accommodating groove, the lower surface of the limiting part is supported on the bottom wall of the accommodating groove, the upper surface of the limiting part is positioned below the upper surface of the exchange plate, and the upper end surface of the sliding column and the side wall of the upper end of the through hole form the terminal positioning groove; the jacking mechanism is used for jacking the sliding column upwards so as to enable the sliding column to move upwards and jack the pole terminal, and therefore the pole terminal is separated from the positioning block upwards.

8. The pole terminal welding jig of claim 7, wherein: the supporting seat comprises a base, a supporting plate arranged above the base and a connecting part used for connecting the base and the supporting plate, and a third through hole vertically penetrating through the upper surface and the lower surface of the supporting plate is formed at the position, corresponding to the second through hole, of the supporting plate; the jacking mechanism comprises a jacking rod, a jacking driving mechanism and a jacking driving mechanism, wherein the upper end of the jacking rod is arranged in the third through hole, the jacking driving mechanism is arranged between the supporting plate and the base and used for driving the jacking rod to ascend so as to jack up the sliding column, and the jacking driving mechanism is also used for driving the jacking rod to descend so as to enable the sliding column to move downwards and reset.

9. The pole terminal welding jig according to any one of claims 1 to 8, wherein: the pressing and holding mechanism comprises a pressing and holding part, a pressing and holding driving mechanism and a pressing and holding driving mechanism, wherein the pressing and holding mechanism is positioned on the upper side of the supporting and positioning mechanism and is used for pressing and holding a pressing and holding part of the pole terminal, the pressing and holding driving mechanism is used for driving the pressing and holding part to descend and press and hold the pressing and holding part, so that the pole terminal is pressed and held, and the pressing and holding driving mechanism is further used for driving the pressing and holding part to ascend and separate from the pressing and holding part, so that the pressing and holding of the pole terminal are relieved.

10. The pole terminal welding jig of claim 9, wherein: the pressing part comprises a pressing plate arranged at the output end of the pressing driving mechanism and an elastic block arranged on the pressing plate and used for pressing the abutting piece.