CN213105263U - Battery welding and bending combined assembly jig - Google Patents

Abstract

The utility model provides a battery welding allies oneself with and allies oneself with combination and assembles tool of buckling. The utility model comprises a base, a product seat and a welding seat; the product seat is movably arranged on the base and can be vertically turned so as to be vertically connected with the base, a profiling cavity for placing a product to be assembled is arranged on the product seat, and the profiling cavity is connected with a positioning mechanism for positioning the product to be assembled; the welding seat is arranged on the base and located on one side of the product seat, the welding seat is located at one end, to be bent, of the positive plate on the product to be assembled, a gland used for fixing the positive plate on the product to be assembled is arranged on the welding seat, and a welding hole is formed in the gland. The utility model completes the welding operation through the welding hole on the gland; opening the gland to vertically turn over the product seat, and vertically connecting the product seat with the base to finish the bending work of the positive plate; the assembly jig is simple in structure, comprehensive in function and high in automation degree, the assembly efficiency and the qualification rate of products are obviously improved, the assembly cost is reduced, and the assembly jig is economical and practical.

Description

Battery welding and bending combined assembly jig

Technical Field

The utility model relates to a battery assembling tool's technical field especially relates to a battery welding is buckled and is used equipment tool jointly.

Background

At present, the demand of batteries on electronic devices such as earphones, bracelets, game machines and the like is increasing. The battery comprises a main body, a negative plate and a positive plate, wherein the positive plate is usually a nickel plate, the negative plate is assembled in the main body in advance, and the positive plate and the negative plate are firstly welded together to realize the conduction between the positive electrode and the negative electrode; then, the distal end of the positive electrode tab also needs to be bent over the end of the main body.

In the prior art, the welding of the positive plate and the negative plate and the bending of the positive plate are separately operated, which are two working procedures; the welding of the positive plate and the negative plate and the bending of the positive plate are finished only by matching two different profiling tools without special assembling tools. On one hand, the profiling tool for welding the positive plate and the negative plate is simple in structure and single in function, only one-direction action can be realized in the using process, only one-direction welding can be carried out, and the bending of the positive plate cannot be realized after the welding; after welding, if the positive plate needs to be bent, the welded battery needs to be switched into another profiling tool, so that the positive plate is bent; on the other hand, the profiling tool for bending the positive plate can only realize the action in one direction, and the welding operation between the positive plate and the negative plate cannot be realized on the profiling tool for bending the positive plate. Therefore, the assembly process of the battery is semi-automatic operation, the conversion between the welding and bending processes is completely operated manually, the production labor intensity is high, the production efficiency is low, and the product quality is unstable; moreover, the conversion of the two tools also has the undesirable phenomena that the product is scratched in the transfer process and the like; in addition, the number of the tools is large, the storage is inconvenient, and the processing and manufacturing cost of the two tools is also high.

Disclosure of Invention

The utility model aims at providing a battery welding allies oneself with and allies oneself with equipment tool of buckling aims at solving and does not have the battery welding to buckle and allies oneself with the problem of allies oneself with the equipment instrument and lead to that battery equipment operation is complicated, packaging efficiency is low, with high costs and easy fish tail product among the prior art.

In order to solve the technical problem, the utility model discloses a following technical scheme realizes:

the utility model provides a battery welding and bending combined assembly jig, which comprises a base, a product seat and a welding seat; the base plays a role in fixing and supporting; the product seat is movably arranged on the base, the product seat can be vertically turned in a first direction so as to be vertically connected with the base, a profiling cavity for placing a product to be assembled is arranged on the product seat, and the profiling cavity is connected with a positioning mechanism for positioning the product to be assembled; the welding seat set up in on the base and be located one side of product seat, the welding seat with the product seat is arranged along first direction, the welding seat is located the one end that the positive plate was treated buckling on treating the product of equipment, be equipped with on the welding seat and be used for treating the product of equipment on the positive plate carry out the gland fixed, be equipped with the welding hole on the gland.

In a preferred embodiment, the positioning mechanism includes a fixed pressing claw and a fixed support rod connected with the fixed pressing claw, and the fixed support rod is arranged on a rotating shaft.

As a preferred embodiment, a positioning seat is disposed on the product seat, the fixing support rod is fixedly connected to the rotating shaft, and the rotating shaft is rotatably connected to the positioning seat.

As a preferred embodiment, a positioning pin is disposed on a side surface of the product seat, and a positioning hole adapted to the positioning pin is disposed on the base.

As a preferred embodiment, the product seat and the base are further connected by a first magnetic assembly, the first magnetic assembly includes a first element located outside the positioning pin and a second element located outside the positioning hole, and the first element and the second element are magnetically attracted.

As a preferred embodiment, the welding seat is connected with the product seat through a second magnetic assembly, the second magnetic assembly includes a third element located on a side surface of the welding seat and a fourth element located on a side of the product seat close to the welding seat, and the third element and the fourth element are magnetically attracted.

As a preferred embodiment, the base is provided with mounting blocks on both sides of the product holder for limiting the movement of the product holder in the second direction.

As a preferred embodiment, the side surfaces of the product seat close to the mounting block are respectively provided with a plurality of insertion holes for enabling the product seat to be close to or far away from the base, and the mounting block is provided with a groove for enabling the insertion holes to be exposed.

As a preferred embodiment, the pressing cover is provided with two fixing protrusions for fixing the positive plate on the product to be assembled, and the fixing protrusions are respectively located on two sides of the welding hole.

As a preferred embodiment, one end of the gland is rotatably connected with the welding seat, the middle part of the gland is further connected with the welding seat through a third magnetic assembly, the third magnetic assembly comprises a fifth element positioned on the gland and a sixth element positioned on the welding seat, and the fifth element and the sixth element are attracted by magnetic force.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model places the product to be assembled in the profiling cavity, positions the middle part of the product to be assembled through the positioning mechanism, and reinforces the end part of the product to be assembled under the action of the gland on the welding seat, thereby further increasing the stability of the positive plate on the product to be assembled; the welding operation is completed through the welding hole on the gland; then, the gland is opened to enable the product seat to be vertically turned over and vertically connected with the base, and the welded product to be assembled is still firmly fixed in the profiling cavity of the product seat under the action of the positioning mechanism, so that the tail end of the positive plate of the product to be assembled can be bent to the top of the product, and the bending work of the positive plate is completed; the assembly jig is simple in structure, comprehensive in function and high in automation degree, the labor intensity of production is greatly reduced, the production efficiency is obviously improved, the assembly cost of products is reduced, bad phenomena such as scratching products caused by conversion among multiple tools are avoided, the product qualification rate is high, the quality is stable, the size is small, the storage is convenient, and the assembly jig is economical and practical.

Drawings

In order to illustrate the embodiments of the present invention or the technical solutions in the prior art more clearly, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic perspective view of an embodiment of an assembly jig for welding and bending a battery provided by the present invention;

FIG. 2 is an enlarged view of the base of FIG. 1;

FIG. 3 is an enlarged view of the soldering nest shown in FIG. 1;

FIG. 4 is an enlarged view of the product holder of FIG. 1;

FIG. 5 is a schematic view of the structure of FIG. 4 during the flipping process;

FIG. 6 is an enlarged view of the figure 4 without the shape-imitating chamber and the positioning mechanism;

FIG. 7 is an enlarged schematic view of the shape-imitating chamber of FIG. 4;

FIG. 8 is an enlarged view of the positioning mechanism of FIG. 4;

FIG. 9 is an enlarged schematic view of the three-dimensional structure of the product to be assembled;

FIG. 10 is an enlarged view of the welded and bent product of FIG. 9;

in the figure: 100-a base; 101-a mounting block; 102-a groove; 103-a second element; 104-positioning holes; 200-a product holder; 201-imitation cavity; 202-a positioning mechanism; 203-a jack; 204-a first element; 205-locating pins; 206-a rotating shaft; 207-an adjusting seat; 208-a first seat; 209-a second seat; 211-taking groove; 221-fixing pressing claws; 222-a stationary strut; 300-a welding seat; 301-a gland; 302-fixing the projection; 303-welding holes; 304-a mount; 305-a rotating shaft; 306-a sixth element; 307-a third element; 308-placing a groove; 309-fool-proof post; 310-a connecting rod; 400-product; 401-positive plate; 411-the bent part.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings and embodiments.

It should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "left", "right", "upper", "lower", "front", "rear", etc. are based on the directions or positional relationships shown in the drawings, which are only for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," "fourth," "fifth," and "sixth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Referring to fig. 1 to 10, the present embodiment provides an assembly jig for welding and bending a battery, on which two processes of welding and bending the battery can be completed at one time; the assembling jig for welding and bending the battery comprises a base 100, a product seat 200 and a welding seat 300; the base 100 is positioned at the bottom and plays a role in fixing and supporting; the product seat 200 is movably arranged on the base 100, the product seat 200 can be vertically turned over in a first direction so as to be vertically connected with the base 100, the product seat 200 is provided with a profiling cavity 201 for placing a product 400 to be assembled, the first direction is a left-right direction and is also the length direction of the profiling cavity 201, the first direction is also the axial direction of the product 400 to be assembled, the first direction is also the length direction of the base 100, the profiling cavity 201 is connected with a positioning mechanism 202 for positioning the product 400 to be assembled, when the product seat 200 is horizontally arranged on the base 100, the welding process of the product 400 to be assembled can be completed, and when the product seat 200 is vertically arranged on the base 100, the bending process of the product 400 to be assembled can be completed; welding seat 300 sets up on base 100 and is located one side of product seat 200, welding seat 300 arranges along the first direction with product seat 200, welding seat 300 is located the one end that positive plate 401 waited to buckle on the product 400 of treating the equipment, product seat 200 is after the perpendicular upset on the first direction, the one end orientation that positive plate 401 waited to buckle on the product 400 of treating the equipment is directly over, be equipped with on the welding seat 300 and be used for treating the product 400 of treating the equipment on positive plate 401 carry out the gland 301 fixed, be equipped with welding hole 303 on the gland 301, accomplish positive plate 401's weldment work through welding hole 303.

Referring to fig. 9 and 10, in the present invention, a positive plate 401 is disposed on a product 400 to be assembled, one end of the positive plate 401 to be bent is generally referred to as a bent portion 411, before welding, the product 400 to be assembled is placed in the profiling cavity 201 of the product seat 200, the positive plate 401 abuts against the surface of the product 400 to be assembled, as shown in fig. 9, and after welding and bending, as shown in fig. 10. The utility model discloses in, place the product 400 of waiting to assemble in the imitative chamber 201 on product seat 200, wherein, the kink 411 of positive plate 401 on the product 400 of waiting to assemble is towards welded seat 300, utilize positioning mechanism 202 to fix a position the middle part of the product 400 of waiting to assemble, gland 301 pushes down the kink 411 of positive plate 401 on the product 400 of waiting to assemble on welded seat 300, the tip of the product 400 of waiting to assemble is consolidated, the stability of positive plate 401 on the product 400 of waiting to assemble has further been increased, accomplish welding operation through the welding hole 303 on gland 301; then, the pressing cover 301 is opened, so that the product holder 200 is vertically turned over and vertically connected with the base 100; due to the action of the positioning mechanism 202, the welded product 400 to be assembled is still firmly fixed in the profiling cavity 201 on the product seat 200, so that the bent part 411 of the positive plate 401 of the product 400 to be assembled can be bent to the top of the product 400, and the bending work of the positive plate 401 is completed.

Referring to fig. 1 and 2, in the present invention, the base 100 is a planar structure, one end of the base 100 is provided with a welding seat 300, the welding seat 300 is located at the left side of the base 100, the right side of the welding seat 300 is a product seat 200, and the product seat 200 is located at the middle part of the base 100; the two sides of the product seat 200 on the base 100 are respectively provided with a mounting block 101 for limiting the product seat 200 to move along a second direction, the second direction is perpendicular to the first direction, the second direction is a front-back direction, namely a width direction of the base 100, and the product seat 200 is clamped between the two mounting blocks 101 so as to be stably placed; a groove 102 is arranged on the mounting block 101, and the groove 102 enables the mounting block 101 to form a gap; the base 100 is further provided with a positioning hole 104, a second element 103 is arranged outside the positioning hole 104, the positioning hole 104 and the second element 103 are both located on the right side of the mounting block 101, and the positioning hole 104 and the second element 103 are used for vertically connecting the product holder 200 with the base 100.

Referring to fig. 1 and 3, in the present invention, the soldering nest 300 is a base for soldering, the side surface, i.e. the right side surface, of the soldering nest 300 is provided with the third element 307, the third elements 307 are two and are respectively located at the front end and the rear end of the right side surface, and the third element 307 is used for magnetically connecting the soldering nest 300 with the product base 200. Be equipped with U type standing groove 308 on the welded seat 300, standing groove 308 is used for holding the kink 411 of positive plate 401 and negative pole piece on the product 400 of treating the equipment, makes the kink 411 of positive plate 401 and negative pole piece stably fix in standing groove 308, has improved on the product 400 of treating the equipment convenience and accuracy of positive plate 401 welding. The welding seat 300 is further provided with a sixth element 306, and the sixth element 306 is used for enabling the gland 301 to be connected with the welding seat 300 in a magnetic attraction manner. The top of the welding seat 300 is provided with a gland 301, one end, namely the left end, of the gland 301 is rotatably connected with the welding seat 300, the welding seat 300 is provided with an installation seat 304, the installation seat 304 is provided with a rotating shaft 305, the left end of the gland 301 is provided with a rotating shaft hole, the middle part of the rotating shaft 305 penetrates through the rotating shaft hole, and two ends of the rotating shaft 305 are installed on the installation seat 304, so that the gland 301 is rotatably connected with the welding seat 300; the middle part of the gland 301 is also connected with the welding seat 300 through a third magnetic assembly, the third magnetic assembly comprises a fifth element positioned on the gland 301 and a sixth element 306 positioned on the welding seat 300, and the fifth element and the sixth element 306 are attracted by magnetic force; the fifth element is arranged in the middle of the gland 301, and is not shown in fig. 3 because the fifth element is located inside the gland 301, the fifth element and the sixth element 306 can be both magnets with opposite magnetic levels, of course, one of the fifth element and the sixth element can be a magnet, the other is an iron block, and the fifth element is matched with the sixth element 306, so that the gland 301 is attracted to the welding seat 300 through magnetic force; the fixing protrusions 302 for fixing the positive plate 401 on the product 400 to be assembled are arranged on the pressing cover 301, namely the right end, the two fixing protrusions 302 are respectively positioned on two sides of the welding hole 303, the fixing protrusions 302 are directly contacted with the positive plate 401 on the product 400 to be assembled, and the positive plate 401 on the product 400 to be assembled is further fixed, so that the welding convenience is improved; the number of the pressing covers 301 is two, the pressing covers 301 are respectively located at the front end and the rear end of the welding seat 300, the two pressing covers 301 are symmetrically arranged, the two pressing covers 301 are connected through the connecting rod 310, the two pressing covers 301 can be opened simultaneously by pulling the connecting rod 310 towards the upper left, and the two pressing covers 301 can be simultaneously covered and closed by pulling the connecting rod 310 along the opposite direction, namely the lower right. A fool-proof post 309 is also provided on the right side of the soldering nest 300 between the two third elements 307 for connecting the product nest 200.

Referring to fig. 1, 4, 5, 6, 7 and 8, in the present invention, the product holder 200 is located on the right side of the welding holder 300, the welding holder 300 is connected to the product holder 200 through a second magnetic assembly, the second magnetic assembly includes a third element 307 located on the side surface, i.e. the right side surface, of the welding holder 300 and a fourth element located on one side, i.e. the left side surface, of the product holder 200 close to the welding holder 300, the fourth element is located inside the product holder 200, the fourth element is not shown in fig. 5, and the third element 307 is attracted to the fourth element by magnetic force; the third element 307 may be a magnet, and the fourth element may be a magnet or an iron block with a magnetic pole opposite to that of the third element 307, or the fourth element may be a magnet, and the third element 307 may be a magnet or an iron block with a magnetic pole opposite to that of the fourth element, and the third element 307 and the fourth element cooperate to magnetically attract the product holder 200 to the right side of the welding holder 300. In general, the product holder 200 is provided with a fool-proof groove, and the fool-proof groove is matched with the fool-proof post 309 on the welding holder 300, so that the product holder 200 and the welding holder 300 can be conveniently connected, the mounting direction of the product holder 200 is prevented from being reversed, and the use convenience is improved; a positioning pin 205 is arranged on the side surface, namely the right side surface, of the product base 200, the positioning pin 205 is matched with the positioning hole 104 on the base 100, and when the product base 200 is vertically connected with the base 100, the positioning pin 205 is inserted into the positioning hole 104; further, the product holder 200 and the base 100 are further connected through a first magnetic assembly, the first magnetic assembly includes a first element 204 located outside the positioning pin 205 and a second element 103 located outside the positioning hole 104, the first element 204 and the second element 103 are magnetically attracted, the first element 204 may be a magnet, the second element 103 is a magnet or an iron block with a magnetic pole opposite to that of the first element 204, the right side of the product holder 200 faces a downward direction after the product holder 200 is vertically turned over in the first direction, and when the product holder 200 is vertically connected with the base 100, the product holder 200 is also magnetically attracted to the base 100. The side surfaces, namely the front side surface and the rear side surface, close to the mounting block 101 of the product seat 200 are respectively provided with a plurality of insertion holes 203 for enabling the product seat 200 to be close to or far away from the base 100, the grooves 102 on the mounting block 101 are used for facilitating the exposure of the insertion holes 203, tools such as clamping jaws are inserted into the grooves 102, the whole product seat 200 can be lifted along the vertical direction so as to be far away from the base 100, and then the product seat is vertically turned over and is vertically connected to the base 100 through the matching of the positioning pins 205, the positioning holes 104 and the first element 204 and the second element 103; moving in the opposite direction, the product holder 200 may be horizontally connected to the base 100 again and positioned at the right side of the welding holder 300. The product seat 200 is provided with two installation grooves for installing the profiling cavities 201, the profiling cavities 201 are respectively positioned at the front end and the rear end of the product seat 200, the profiling cavities 201 are U-shaped, and the profiling cavities 201 are closely matched with the placement grooves 308 on the welding seat 300; the profiling cavity 201 is also provided with a taking groove 211 which is axially arranged along the product 400 to be assembled, and the arrangement of the taking groove 211 facilitates the product 400 to be assembled to be placed into the profiling cavity 201 or taken out of the profiling cavity 201, so that the use convenience is improved; the product seat 200 is further provided with a positioning seat, the positioning seat comprises a first seat body 208 and a second seat body 209, and the positioning mechanism 202 is arranged on the positioning seat; specifically, the positioning mechanism 202 includes a fixed pressing claw 221 and a fixed supporting rod 222 connected thereto, the fixed pressing claw 221 is used for positioning the product 400 to be assembled mounted in the profiling cavity 201, and the fixed supporting rod 222 is disposed on a rotating shaft 206; in general, the fixing support bar 222 is fixedly connected to the rotating shaft 206, and the rotating shaft 206 is rotatably connected to the positioning seat, specifically, the rotating shaft 206 is disposed on the first seat 208 and the second seat 209; an adjusting seat 207 is arranged at the tail end, namely the right end, of the rotating shaft 206, and an external tool enables the rotating shaft 206 to rotate through the adjusting seat 207, so that the positioning mechanism 202 is pressed on the profiling cavity 201 or separated from the profiling cavity 201, and the product 400 to be assembled is positioned or released; two positioning mechanisms 202 are provided, the positioning mechanisms 202 are located inside the profiling cavity 201, in order to avoid mutual interference, the fixing strut 222 in the positioning mechanism 202 located at the front end of the product holder 200 is located between the first holder body 208 and the second holder body 209, and the fixing strut 222 in the positioning mechanism 202 located at the rear end of the product holder 200 is located on the right side of the second holder body 209; the assembling jig for welding and bending the batteries can simultaneously complete the welding and bending of the two batteries, has high automation degree and greatly improves the assembling efficiency; of course, the number of the profiling cavities 201 on the assembly jig for welding and bending the battery can be other numbers, for example: three, four, five or six, while fitting the same number of positioning mechanisms 202 and the same number of glands 301, thereby further improving the production efficiency.

Therefore, compared with the prior art, the beneficial effects of the utility model are that: the utility model places the product 400 to be assembled in the profiling cavity 201, positions the middle part of the product 400 to be assembled through the positioning mechanism 202, and reinforces the end part of the product 400 to be assembled under the action of the gland 301 on the welding seat 300, thereby further increasing the stability of the positive plate 401 on the product 400 to be assembled; the welding operation is completed through the welding hole 303 on the gland 301; then, the pressing cover 301 is opened to enable the product seat 200 to be vertically turned over and vertically connected with the base 100, and the welded product 400 to be assembled is still firmly fixed in the profiling cavity 201 of the product seat 200 under the action of the positioning mechanism 202, so that the tail end of the positive plate 401 on the product 400 to be assembled can be bent to the top of the product 400, and the bending work of the positive plate 401 is completed; the assembly jig is simple in structure, comprehensive in function and high in automation degree, the labor intensity of production is greatly reduced, the production efficiency is obviously improved, the assembly cost of the product 400 is reduced, bad phenomena such as scratching of the product 400 caused by conversion among multiple tools are avoided, and the product 400 is high in qualification rate, stable in quality, small in size, convenient to store, economical and practical.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. The utility model provides a battery welding is buckled and is used equipment tool, its characterized in that includes:

the base plays a role in fixing and supporting;

the product seat is movably arranged on the base and can be vertically turned in a first direction so as to be vertically connected with the base, a profiling cavity for placing a product to be assembled is arranged on the product seat, and the profiling cavity is connected with a positioning mechanism for positioning the product to be assembled;

the welding seat set up in on the base and be located one side of product seat, the welding seat with the product seat is arranged along first direction, the welding seat is located the one end that the positive plate was treated and is buckled on treating the product of equipment, be equipped with on the welding seat and be used for treating that the positive plate carries out the gland fixed on the product of equipment, be equipped with the welding hole on the gland.

2. The battery welding and bending combined assembly jig according to claim 1, wherein:

the positioning mechanism comprises a fixed pressing claw and a fixed supporting rod connected with the fixed pressing claw, and the fixed supporting rod is arranged on a rotating shaft.

3. The battery welding and bending combined assembly jig according to claim 2, wherein:

the product seat is provided with a positioning seat, the fixed support rod is fixedly connected with the rotating shaft, and the rotating shaft is rotatably connected with the positioning seat.

4. The battery welding and bending combined assembly jig according to claim 1, wherein:

the side surface of the product seat is provided with a positioning pin, and the base is provided with a positioning hole matched with the positioning pin.

5. The battery welding and bending combined assembly jig according to claim 4, wherein:

the product seat with the base still connects through a magnetic component, a magnetic component is including being located the first component in the locating pin outside with be located the second component in the locating hole outside, first component with second component magnetic attraction.

6. The battery welding and bending combined assembly jig according to claim 1, wherein:

the welding seat with the product seat is connected through second magnetic component, second magnetic component is including being located third component on the side of welding seat and being located the product seat is being close to the fourth component on one side of welding seat, third component with the magnetic attraction of fourth component.

7. The battery welding and bending combined assembly jig according to claim 6, wherein:

the base is located both sides of product seat all are equipped with and are used for restricting the installation piece that the product seat removed along the second direction.

8. The battery welding and bending combined assembly jig according to claim 7, wherein:

the product seat is being close to all be equipped with on the side of installation piece and be used for making the product seat is close to or keeps away from a plurality of jack of base, be equipped with on the installation piece and make the recess that the jack exposes.

9. The assembly jig for welding and bending battery according to any one of claims 1 to 8, wherein:

the pressing cover is provided with fixing bulges used for fixing the positive plate on the product to be assembled, and the two fixing bulges are respectively positioned on two sides of the welding hole.

10. The battery welding and bending combined assembly jig according to claim 9, wherein:

the one end of gland with the welding seat rotates to be connected, the middle part of gland still through third magnetic component with the welding seat is connected, third magnetic component is including being located fifth component on the gland with be located sixth component on the welding seat, the fifth component with the actuation of sixth component magnetic force.

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