CN220480623U - Jacking mechanism and welding equipment - Google Patents

Abstract

The utility model discloses a jacking mechanism and welding equipment, wherein the jacking mechanism comprises: the fixing piece is used for abutting the top cover; the supporting pieces are arranged below the fixing pieces at intervals and used for supporting the shell; the driving piece is connected with the supporting piece and can drive the supporting piece to ascend so as to be close to the fixing piece; the jacking mechanism can buffer the shell, so that the stress of the shell is uniform, and the welding effect of the shell and the top cover is improved.

Description

Jacking mechanism and welding equipment

Technical Field

The utility model relates to the technical field of battery manufacturing equipment, in particular to a jacking mechanism and welding equipment.

Background

In the related art, after the battery cell is mounted in the housing, the housing and the top cover are required to be welded. In order to improve the production efficiency, a welding device is generally used to weld the case and the top cover. In the welding process, in order to avoid the phenomenon of cold joint or partial welding, the existing welding equipment can set a plurality of springs below the shell when the shell is lifted. The spring can play the effect that makes top cap and fixed plate parallel, and the spring can also play the effect of buffering simultaneously, avoids the casing to receive the damage on the fixed plate under the effect of driving piece butt.

However, after a plurality of springs in the existing welding equipment are used for a long time, the problem of elastic fatigue can occur, and as the elastic fatigue of each spring is inconsistent, when the plurality of springs buffer the shell, the stress of different positions of the shell is uneven, so that the shell is inclined, and finally, the welding effect of the shell and the top cover is poor.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the utility model provides the jacking mechanism which can lead the stress of the shell to be uniform when buffering the shell, thereby improving the welding effect of the shell and the top cover.

The utility model also provides welding equipment.

According to a first aspect of the present utility model, an embodiment of a jacking mechanism includes:

the fixing piece is used for abutting the top cover;

the supporting pieces are arranged below the fixing pieces at intervals and used for supporting the shell;

the driving piece is connected with the supporting piece and can drive the supporting piece to ascend so as to be close to the fixing piece;

the top surface of the first elastic piece covers and is connected to the bottom surface of the supporting piece, and the bottom surface of the first elastic piece is connected with the driving piece.

The jacking mechanism provided by the embodiment of the utility model has at least the following beneficial effects: the mounting of climbing mechanism is used for the butt top cap, support piece can support the top of casing, the driving piece can drive support piece towards the mounting motion, thereby make top cap and casing butt, wherein, set up first elastic component between driving piece and support piece, the top surface of first elastic component covers and connects in the bottom surface of support piece, thereby first elastic component can play the cushioning effect to each position on the support piece, make support piece atress even, and further, because support piece has supported the casing, when each position of support piece can receive the effect of buffering, each position of the bottom of casing also can receive the buffering, that is each position atress of casing even, the casing can not take place to warp. In the prior art, because the elastic fatigue of each spring is different, the stress of each position of the shell cannot be uniform. Thus, when the jacking mechanism is used for buffering the shell, the stress of the shell is uniform, and therefore the welding effect of the shell and the top cover is improved.

According to some embodiments of the utility model, the material of the first elastic member is one of thermoplastic polyester elastomer, polyurethane thermoplastic elastomer and thermoplastic vulcanized rubber.

According to some embodiments of the utility model, the thickness of the first elastic member ranges from 10mm to 20mm.

According to some embodiments of the utility model, the lifting mechanism further comprises an intermediate member and a pushing member, the pushing member is fixedly connected to the driving member, the intermediate member is fixedly connected to the first elastic member, the intermediate member is further slidably connected to the pushing member, and the intermediate member can slide in a horizontal direction relative to the pushing member.

According to some embodiments of the utility model, the lifting mechanism further comprises a locking member capable of restricting the intermediate member from sliding relative to the pushing member.

According to the jacking mechanism of some embodiments of the present utility model, the jacking mechanism further includes a second elastic member, two ends of the second elastic member are respectively connected with the pushing member and the intermediate member, and elastic force of the second elastic member can drive the intermediate member to reset.

According to a second aspect of the present utility model, an embodiment of a jacking mechanism includes:

the fixing piece is used for abutting the top cover;

the supporting pieces are arranged below the fixing pieces at intervals;

the first elastic piece is arranged on one side of the supporting piece, which faces the fixing piece, and can cover and support the bottom of the shell;

the driving piece is connected with the supporting piece and can drive the supporting piece to ascend so as to be close to the fixing piece.

The jacking mechanism provided by the embodiment of the utility model has at least the following beneficial effects: the mounting of climbing mechanism is used for the butt top cap, and support piece can support the top of casing, and the driving piece can drive support piece towards mounting motion to make top cap and casing butt, wherein, set up first elastic component between support piece towards one side of mounting, first elastic component covers and connects in the bottom of casing, thereby first elastic component can play the effect of buffering to each position of the bottom of casing, and each position atress of casing is even promptly, and the casing can not take place to warp. In the prior art, because the elastic fatigue of each spring is different, the stress of each position of the shell cannot be uniform. Thus, when the jacking mechanism is used for buffering the shell, the stress of the shell is uniform, and therefore the welding effect of the shell and the top cover is improved.

According to some embodiments of the utility model, the thickness of the first elastic member ranges from 10mm to 20mm.

According to an embodiment of the third aspect of the present utility model, a jacking mechanism includes:

the fixing piece is used for abutting the top cover;

the supporting pieces are arranged below the fixing pieces at intervals and used for supporting the shell;

the driving piece is connected with the fixing piece and can drive the fixing piece to descend so as to be close to the supporting piece;

the bottom surface of the first elastic piece covers and is connected to the top surface of the fixing piece, and the top surface of the first elastic piece is connected with the driving piece.

The jacking mechanism provided by the embodiment of the utility model has at least the following beneficial effects: the mounting of climbing mechanism is used for the butt top cap, support piece can support the casing, the driving piece can drive the mounting and move towards support piece, thereby make top cap and casing butt, wherein, set up first elastic component between driving piece and mounting, the bottom surface of first elastic component covers and connects in the top surface of mounting, thereby first elastic component can play the effect of buffering to each position on the mounting, make the mounting atress even, further, because the mounting has supported the top cap, when each position of mounting can receive the effect of buffering, each position of top cap also can receive the buffering, also each position atress of top cap is even. When the stress at each position of the top cover is even, the top cover is abutted with the shell, so that the stress of the shell is even, and the shell cannot be inclined. In the prior art, because the elastic fatigue of each spring is different, the stress of each position of the shell cannot be uniform. Thus, when the jacking mechanism is used for buffering the shell, the stress of the shell is uniform, and therefore the welding effect of the shell and the top cover is improved.

According to a fourth aspect of the utility model, a welding apparatus comprises:

a jacking mechanism as set forth in any one of the first, second and third aspects;

and the welding head can be used for welding the shell and the top cover.

The welding equipment provided by the embodiment of the utility model has at least the following beneficial effects: because climbing mechanism, when can buffering the casing, make the atress of casing even to improve the welding effect of casing and top cap, further, welding equipment who has climbing mechanism also can have better welding effect to casing and top cap.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The utility model is further described with reference to the accompanying drawings and examples, in which:

FIG. 1 is a schematic view of a housing and a top cover of a prior art battery cell;

FIG. 2 is a schematic illustration of a jacking mechanism according to some embodiments of the present utility model;

fig. 3 is a schematic diagram of a jacking mechanism jacking a single battery according to a first embodiment of the present utility model;

fig. 4 is a schematic diagram of a jacking mechanism jacking a single battery according to a second embodiment of the present utility model;

FIG. 5 is an enlarged view of FIG. 4 at A;

fig. 6 is a schematic cross-sectional view of a slide bar and a reset portion of a jacking mechanism according to some embodiments of the present utility model.

Reference numerals:

a jacking mechanism 10, a shell 11 and a top cover 12;

the fixing member 100, the supporting member 200, the driving member 300, the first elastic member 400, the intermediate member 500, the slider 510, the slide bar 520, the pushing member 600, the guide rail 610, the restoring portion 620, the storage chamber 630, and the spring 640.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

In the description of the present utility model, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present utility model and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, the meaning of a number is one or more, the meaning of a number is two or more, and greater than, less than, exceeding, etc. are understood to exclude the present number, and the meaning of a number is understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present utility model, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present utility model can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.

In the description of the present utility model, the descriptions of the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Referring to fig. 1, the composition of the unit cells is first described. The unit cell includes a cell case 11 (hereinafter, simply referred to as case 11), an electric core, and a top cover 12. The battery cell is placed in the case 11, and then the opening of the case 11 is closed by the top cover 12. Typically, the top cover 12 and the housing 11 are welded using a welding device. The present application relates to a jacking mechanism 10 for mating a top cover 12 and a housing 11.

Referring to fig. 2, the jacking mechanism 10 is described below. In some embodiments, the jacking mechanism 10 includes: the fixing member 100, the supporting member 200, the driving member 300, and the first elastic member 400. The fixing member 100 is used for abutting the top cover 12. The supporting members 200 are spaced below the fixing members and serve to support the bottom of the housing 11. The driving member 300 is connected to the supporting member 200, and the driving member 300 can drive the supporting member 200 to approach the fixing member 100. The driving member 300 may be a motor or a cylinder. When the housing 11 is placed on the support 200, and then the top cover 12 is placed on the housing 11, the cylinder drives the support 200 to approach the fixing member 100, so that the fixing member 100 and the top cover 12 abut. After the fixing member 100 abuts the top cover 12, the top cover 12 and the housing 11 are kept fixed, and the top cover 12 and the housing 11 can be welded by laser. The top surface of the first elastic member 400 covers and is coupled to the bottom surface of the supporting member 200, and the bottom surface of the first elastic member 400 is coupled to the driving member 300. Specifically, referring to fig. 3, the fixing member 100 of the lifting mechanism 10 is configured to abut against the top cover 12, the supporting member 200 may support the top of the housing 11, the driving member 300 may drive the supporting member 200 to move toward the fixing member 100, so that the top cover 12 abuts against the housing 11, where a first elastic member 400 is disposed between the driving member 300 and the supporting member 200, and a top surface of the first elastic member 400 covers and is connected to a bottom surface of the supporting member 200, so that the first elastic member 400 may play a role in buffering each position on the supporting member 200, and thus the supporting member 200 is uniformly stressed, and further, since the supporting member 200 supports the housing 11, when each position of the supporting member 200 may be buffered, each position of the bottom of the housing 11 may also be buffered, that is, each position of the housing 11 may be uniformly stressed, and the housing 11 may not be skewed. In the prior art, since elastic fatigue of each spring is different, it is impossible to uniformly stress each position of the housing 11. Specifically, it is known that the overall buffering effect is differentiated and compared. The springs used in the prior art are point-like cushioning. Failure of the spring portions, or inconsistent fatigue damage to each spring, can result in an imbalance in the upward positioning of the top cover 12 and housing 11. And the whole surface of the first elastic member 400 is stressed, so that the phenomenon can be effectively avoided. In this way, when the jacking mechanism 10 buffers the housing 11, the force applied to the housing 11 is uniform, and the welding effect between the housing 11 and the top cover 12 is improved.

The first elastic member 400 may be an elastomeric material. The elastomeric material is described below. The elastomeric material may be one of a thermoplastic polyester elastomer, a polyurethane thermoplastic elastomer, and a thermoplastic vulcanizate.

Among them, thermoplastic polyester elastomers are a class of linear block copolymers containing hard segments (crystalline phase) of polybutylene terephthalate polyester and soft segments (amorphous phase) of aliphatic polyesters or polyethers. The thermoplastic polyester elastomer belongs to a high-performance engineering-grade elastomer and has the advantages of high mechanical strength, good elasticity, impact resistance, creep resistance, cold resistance, bending fatigue resistance, oil resistance, chemical resistance, solvent corrosion resistance and the like. The physical characteristics of the thermoplastic polyester elastomer are mainly as follows: (1) mechanical properties. The hardness of the thermoplastic polyester elastomer can be varied from Shore D32 to D80 by adjusting the ratio of the soft segment to the hard segment, and the elasticity and the strength of the thermoplastic polyester elastomer are between those of rubber and plastic. The thermoplastic polyester elastomer has a higher modulus than other thermoplastic elastomers of the same hardness under low strain conditions than other thermoplastic elastomers. When modulus is an important design condition, the cross-sectional area of the product can be reduced by using the thermoplastic polyester elastomer, and the material consumption is reduced. (2) tensile strength. The compression modulus and the tensile modulus of the thermoplastic polyester elastomer are much higher than those of the polyurethane elastomer, and the same part is made of the same hardness thermoplastic polyester elastomer and polyurethane thermoplastic elastomer, the former can bear larger load. Above room temperature, the thermoplastic polyester elastomer has high flexural modulus, is suitable for manufacturing cantilever beams or torque type parts, and is particularly suitable for manufacturing high-temperature parts. The thermoplastic polyester elastomer has good low-temperature flexibility, the low-temperature notch impact strength is superior to other thermoplastic elastomers, and the wear resistance is equivalent to that of polyurethane thermoplastic elastomers. The thermoplastic polyester elastomer has excellent fatigue resistance and is combined with high elasticity, so that the material becomes an ideal material under the condition of repeated cyclic loading use, and is suitable for manufacturing gears, rubber rollers, flexible couplings, belts and the like. (3) heat resistance. The thermoplastic polyester elastomer has excellent heat resistance, and the higher the hardness is, the better the heat resistance is. The tensile strength of the thermoplastic polyester elastomer is far higher than that of the polyurethane thermoplastic elastomer when the thermoplastic polyester elastomer is used at the temperature of more than 120 ℃. In addition, the thermoplastic polyester elastomer has excellent low temperature resistance. The brittleness of the thermoplastic polyester elastomer is lower than-70 ℃, and the lower the hardness is, the better the cold resistance is, and most of the thermoplastic polyester elastomer can be used for a long time at-40 ℃. The thermoplastic polyester elastomer has a very wide working temperature range due to the balanced properties exhibited at high and low temperatures, and can be used at-70 to 200 ℃. (4) chemical resistant media. Thermoplastic polyester elastomers have excellent oil resistance and are resistant to most polar liquid chemical media (e.g., acids, bases, amines, and glycols) at room temperature, with their resistance to chemicals increasing with increasing hardness. The thermoplastic polyester elastomer has better anti-swelling performance and anti-permeability performance for most organic solvents, fuels and gases, and the permeability for fuel oil is only 1/3-1/300 of that of oil-resistant rubber such as neoprene, chlorosulfonated polyethylene, nitrile rubber and the like. (5) weather resistance and aging resistance. The thermoplastic polyester elastomer has excellent chemical stability under various external conditions such as water mist, ozone, outdoor atmosphere and the like. As with most thermoplastic elastomers, they degrade under the action of ultraviolet light, so for outdoor applications or articles exposed to sunlight, ultraviolet light protection aids, including carbon black and various pigments or other shielding materials, phenolic antioxidants and benzotriazole ultraviolet light shielding agents, are added to the formulation to effectively prevent ultraviolet light aging. (6) high resilience. (7) processability. The thermoplastic polyester elastomer has excellent melt stability and sufficient thermoplasticity, and thus has good processability. At low shear rates, the melt viscosity of the thermoplastic polyester elastomer is insensitive to shear rates, while at high shear rates, the melt viscosity decreases with increasing shear rates. Because the thermoplastic polyester elastomer melt is very sensitive to temperature, the melt viscosity of the thermoplastic polyester elastomer melt changes by several times to tens times within the range of 10 ℃, so that the temperature should be strictly controlled during molding.

In some embodiments, the first elastic member 400 is made of polyurethane thermoplastic elastomer, which is also called polyurethane rubber, and belongs to a class of elastic polymer materials containing more urethane groups (-NHCOO-) in the molecular chain. It is prepared by the interaction of oligoester diisocyanate and polyether or polyester polyol with terminal hydroxyl and low molecular weight diol chain extender. Polyurethane thermoplastic elastomers are block polymers, typically comprising soft segments of flexible long chains of polyols and hard segments of diisocyanates and chain extenders. The hard segments and the hard segments are alternately arranged in order to form a repeated structural crystallization unit, so that the elastomer is endowed with high strength, rigidity, high melting point and other properties; the soft segments are arranged in a disordered and curled manner to form amorphous regions, which give the elastomer flexibility, elasticity, hygroscopicity and low temperature resistance. The polyurethane thermoplastic elastomer molecular chain contains a large amount of urethane groups and ether, ester and urea groups, and is formed by strong hydrogen bonding. Formulations made from numerous ethers and esters can give polyurethane thermoplastic elastomer varieties with very different properties. These structural features provide the polyurethane thermoplastic elastomer with excellent wear resistance, toughness and high elasticity, and also with easy compatibility with other polymers. The properties of the polyurethane thermoplastic elastomer are mainly as follows: (1) The polyurethane thermoplastic elastomer has various forms and combinations, various varieties, mixing type, casting mold and thermoplastic type, complex chemical structure and various performances, such as high mechanical property, good oil resistance and poor water resistance of the polyester polyurethane thermoplastic elastomer; the polyether polyurethane thermoplastic elastomer has better low temperature resistance and water resistance than polyester type, but has poorer oil resistance and mechanical property than polyester type. Overall, they have a good physical combination of properties, which is intermediate between that of conventional rubber and thermoplastic. Polyurethane thermoplastic elastomers are generally classified into a kneading type, a casting type and a thermoplastic type. (2) The polyurethane thermoplastic elastomer is a block copolymer, and the ratio of the components of the hard segment to the soft segment determines the properties of the polyurethane thermoplastic elastomer. The hard segments have a special effect on modulus, hardness and tear strength, while the soft segments mainly affect the elasticity and low temperature properties of the article. The polyurethane thermoplastic elastomer has excellent softness and rebound resilience, can range from very soft to very hard, has very good flexibility to very high rigidity, or ranges from a hydrophilic type capable of absorbing water to hydrophobic type capable of repelling water, and keeps higher elasticity in a wider hardness range (Shore A10-D75), and has higher bearing capacity than other elastomers under the same hardness. (3) The polyurethane thermoplastic elastomer has excellent wear resistance, and the wear resistance is 2-10 times of that of natural rubber; the elongation at break is up to 600% -800%, and is 300% higher than that of natural rubber. (4) The polyurethane thermoplastic elastomer has higher impact strength, density of 1.14-1.22 g/cm3, tensile strength of 30-65 MPa, and the ester polyurethane thermoplastic elastomer is slightly higher than the ether polyurethane thermoplastic elastomer. The thermal performance is also high, and the long-term use temperature also shows good soft elasticity at the temperature of between 50 ℃ below zero and 90 ℃. (5) The polyurethane thermoplastic elastomer has good chemical resistance, oil resistance, radiation resistance, oxygen resistance, ozone resistance, fatigue resistance and vibration resistance, high heat resistance and low molding and processing cost. (6) Compared with metal materials, the polyurethane thermoplastic elastomer product has the advantages of light weight, low noise, abrasion resistance, low processing cost, corrosion resistance and the like; compared with plastics, the polyurethane thermoplastic elastomer has the advantages of no brittleness, elastic memory, wear resistance and the like; compared with rubber, the polyurethane thermoplastic elastomer has the advantages of wear resistance, cutting resistance, tearing resistance, high bearing capacity, potting, casting, wide hardness range and the like. (7) The polyurethane thermoplastic elastomer has poor weather resistance and is easy to age and degrade under sunlight, so that an antioxidant and a light stabilizer are added in the processing.

Thermoplastic vulcanizates, which are mainly composed of two parts, one being plastic, as the continuous phase; and secondly, rubber is used as a disperse phase. Typically the rubber needs to be compounded with a softening oil or plasticizer. Vulcanizing agents and some auxiliary aids are also indispensable. In addition, some inorganic fillers may be added to reduce cost or improve performance in some way. The properties of thermoplastic vulcanizates are mainly: (1) The rubber has good elasticity and compression deformation resistance, and the environmental resistance and aging resistance are equivalent to those of ethylene propylene diene monomer rubber, and the oil resistance and solvent resistance are comparable to those of general chloroprene rubber. (2) The application temperature range is wide (-60-150 ℃), the application range of hardness is wide (25A-54D), and the product is easy to dye, so that the degree of freedom of product design is greatly improved. (3) excellent processability: the method can be used for processing thermoplastic plastics such as injection, extrusion and the like, and has the advantages of high efficiency, simplicity, easy implementation, no need of additional equipment, high fluidity and small shrinkage. (4) The environment-friendly and recyclable water-based paint is environment-friendly, and has no obvious reduction in performance after repeated use for six times. (5) The specific gravity is light (0.90-0.97), the appearance quality is uniform, the surface grade is high, and the hand feeling is good.

Further, in some embodiments, the thickness of the first elastic member 400 ranges from 10mm to 20mm. When the thickness of the first elastic member 400 is smaller than 10mm, the magnitude of the recess is smaller when the first elastic member 400 is stressed, which may result in poor buffering effect of the first elastic member 400 on the housing 11. When the thickness of the first elastic member 400 is greater than 20mm, although a good buffering effect is achieved, waste of materials is caused, resulting in high costs. Wherein the shore hardness of the first elastic member 400 may be between a30 and a 50.

Further, the driving member 300 sometimes needs to position the housing 11 and the top cover 12 after the driving support member 200 approaches the fixing member 100. Because the laser needs to travel a fixed path during laser welding, the welding effect on the top cover 12 and the shell 11 can be better only after the top cover 12 and the shell 11 are positioned to meet the positioning requirement. Specifically, referring to fig. 4, in some embodiments, the jacking mechanism 10 further includes a middle member 500 and a pushing member 600. The pushing member 600 is fixedly connected to the driving member 300, one end of the intermediate member 500 is fixedly connected to the first elastic member 400, the other end of the intermediate member 500 is slidably connected to the pushing member 600 in the horizontal direction, and the intermediate member 500 can slide in the horizontal direction relative to the pushing member 600. Specifically, in the vertical direction, the driving member 300 may drive the pushing member 600 to move, the pushing member 600 drives the intermediate member 500 to move, the intermediate member 500 drives the first elastic member 400 to move, and the first elastic member 400 drives the supporting member 200 to move, thereby making the supporting member 200 approach the fixing member 100. This can accomplish that both ends of the top cover 12 abut against the housing 11 and the fixing member 100, respectively, in the vertical direction. In the horizontal direction, after the intermediate member 500 and the pushing member 600 are slidably connected, positioning in the horizontal direction can be completed, thereby ensuring a good welding effect of the top cover 12 and the housing 11.

The intermediate member 500 and the pushing member 600 may be slidably connected by a slider 510 and a rail 610. Specifically, referring to fig. 5, in some embodiments, the pushing member 600 has a guide rail 610, the guide rail 610 extends along a horizontal direction, the middle member 500 has a slider 510, and the slider 510 is slidably connected to the guide rail 610. In this manner, the slider 510 slides on the guide rail 610, and the pushing member 600 can slide with respect to the intermediate member 500. It is contemplated that the intermediate member 500 may also be driven to slide relative to the pusher 600 by a driver as the intermediate member 500 slides relative to the pusher 600. The drive may be a motor or a cylinder.

Further, in some embodiments, the jacking mechanism 10 further includes a lock that can limit the sliding of the intermediate member 500 relative to the pusher 600. Specifically, the locking member may restrict the intermediate member 500 from sliding with respect to the pusher 600 after the intermediate member 500 and the pusher 600 are slid relatively in the horizontal direction. In this way, the locking member can fix the position between the intermediate member 500 and the pushing member 600, thereby achieving positioning. The locking member may be a screw, which is screwed to the slider, and the locking member passes through the slider 510 to abut against the guide rail 610, thereby restricting the slider 510 from sliding on the guide rail 610.

Further, before the case 11 and the top cover 12 are welded, the positioning may be completed by sliding the intermediate member 500 with respect to the pushing member 600, and after the case 11 and the top cover 12 are welded, a new case 11 and a new top cover 12 may be replaced for welding. At this time, the intermediate piece 500 can be slid and reset to the original position, so that the shell 11 is convenient to feed. Specifically, referring to fig. 5 and 6, in some embodiments, the jacking mechanism 10 further includes a second elastic member, two ends of the second elastic member are respectively connected to the pushing member 600 and the middle member 500, and the elastic force of the second elastic member can drive the middle member 500 to return. Specifically, the second elastic member may be a spring 640, the intermediate member 500 has a slide bar 520, the pushing member 600 has a restoring portion 620 and a spring 640, two ends of the spring 640 respectively abut against the restoring portion 620 and the slide bar 520, and the spring force of the spring 640 can drive the slide bar 520 to slide relative to the restoring portion 620. Specifically, the middle member 500 moves left or right with respect to the pusher 600, and then the spring 640 may drive the slide bar 520 to move right or left to return. In another manner, the reset portion 620 has a storage cavity 630, the sliding rod 520 and the spring 640 are disposed in the storage cavity 630, two ends of the spring 640 are respectively abutted against the sliding rod 520 and the cavity wall of the storage cavity 630, and the elastic force of the spring 640 can drive the sliding rod 520 to slide relative to the cavity wall of the storage cavity 630. Specifically, the middle member 500 moves left or right with respect to the pusher 600, and then the spring 640 may drive the slide bar 520 to move right or left to return.

In some embodiments, the jacking mechanism 10 includes: the fixing member 100, the supporting member 200, the driving member 300, and the first elastic member 400. The fixing member 100 is used for abutting the top cover 12. The supporting members 200 are spaced below the fixing member 100, and the first elastic member 400 is disposed at a side of the supporting member 200 facing the fixing member 100, and the first elastic member 400 can cover and support the bottom of the housing 11. The driving member 300 is connected to the supporting member 200, and the driving member 300 can drive the supporting member 200 to rise to approach the fixing member 100. Specifically, the fixing member 100 of the jacking mechanism 10 is used for abutting against the top cover 12, the supporting member 200 can support the top of the housing 11, the driving member 300 can drive the supporting member 200 to move towards the fixing member 100, so that the top cover 12 is abutted against the housing 11, wherein the first elastic member 400 is arranged between one side of the supporting member 200 facing the fixing member 100, and the first elastic member 400 covers and is connected to the bottom of the housing 11, so that the first elastic member 400 can buffer all positions of the bottom of the housing 11, that is, all positions of the housing 11 are uniformly stressed, and the housing 11 cannot be skewed. In the prior art, since elastic fatigue of each spring is different, it is impossible to uniformly stress each position of the housing 11. In this way, when the jacking mechanism 10 buffers the housing 11, the force applied to the housing 11 is uniform, and the welding effect between the housing 11 and the top cover 12 is improved.

Further, in some embodiments, the thickness of the first elastic member 400 ranges from 10mm to 20mm. When the thickness of the first elastic member 400 is smaller than 10mm, the magnitude of the recess is smaller when the first elastic member 400 is stressed, which may result in poor buffering effect of the first elastic member 400 on the housing 11. When the thickness of the first elastic member 400 is greater than 20mm, although a good buffering effect is achieved, waste of materials is caused, resulting in high costs.

In addition to the embodiments described above, there are additional embodiments. In some embodiments, the jacking mechanism 10 includes: the fixing member 100, the supporting member 200, the driving member 300, and the first elastic member 400. The fixing member 100 is used for abutting the top cover 12. The supporting members 200 are spaced below the fixing member 100, and the supporting members 200 serve to support the housing 11. The driving member 300 is connected to the fixing member 100, and the driving member 300 can drive the fixing member 100 to descend to approach the supporting member 200. The bottom surface of the first elastic member 400 covers and is coupled to the top surface of the fixing member 100, and the top surface of the first elastic member 400 is coupled to the driving member 300. The fixing piece 100 of the jacking mechanism 10 is used for abutting the top cover 12, the supporting piece 200 can support the shell 11, the driving piece 300 can drive the fixing piece 100 to move towards the supporting piece 200, so that the top cover 12 is abutted with the shell 11, the first elastic piece 400 is arranged between the driving piece 300 and the fixing piece 100, the bottom surface of the first elastic piece 400 covers and is connected to the top surface of the fixing piece 100, therefore, the first elastic piece 400 can buffer all positions on the fixing piece 100, the fixing piece 100 is uniformly stressed, further, due to the fact that the fixing piece 100 supports the top cover 12, all positions of the top cover 12 can be buffered when all positions of the fixing piece 100 can be buffered, namely, all positions of the top cover 12 are uniformly stressed, and the shell 11 cannot be skewed. When the stress at each position of the top cover 12 is uniform, the top cover 12 and the housing 11 are abutted, and the stress of the housing 11 can be uniform. In the prior art, since elastic fatigue of each spring is different, it is impossible to uniformly stress each position of the housing 11. In this way, when the jacking mechanism 10 buffers the housing 11, the force applied to the housing 11 is uniform, and the welding effect between the housing 11 and the top cover 12 is improved.

The welding apparatus is described below. In some embodiments, a welding apparatus includes: the jacking mechanism 10 and the welding head of any one of the above embodiments. The welding head is capable of welding the housing 11 and the top cover 12. Since the lifting mechanism 10 can buffer the housing 11, the stress of the housing 11 is uniform, so that the welding effect of the housing 11 and the top cover 12 is improved, and furthermore, the welding equipment with the lifting mechanism 10 can also have a better welding effect on the housing 11 and the top cover 12.

In some embodiments, the welding apparatus further includes a positioning mechanism that can abut against each side of the top cover 12 to secure the top cover 12. Specifically, when the housing 11 is placed on the support 200, and then the top cover 12 is placed on the housing 11, the cylinder drives the support 200 to approach the fixing member 100, so that the fixing member 100 and the top cover 12 abut. After the fixing member 100 abuts against the top cover 12, the top cover 12 is fixed by the positioning mechanisms, the number of the positioning mechanisms can be four, the top cover 12 is square, and the four side walls of the top cover 12 are respectively abutted by the four positioning mechanisms, so that the top cover 12 is positioned and positioned. And then the top cover 12 and the shell 11 are welded by laser, so that the welding of the top cover 12 on the shell 11 can be completed. The positioning mechanism may also have a plurality of positioning mechanisms, and one positioning mechanism abuts against each side wall of the housing 11, thereby fixing the housing 11. It is conceivable that the positioning mechanism can improve the welding effect of the top cover 12 and the housing 11 after fixing the top cover 12.

The embodiments of the present utility model have been described in detail with reference to the accompanying drawings, but the present utility model is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present utility model. Furthermore, embodiments of the utility model and features of the embodiments may be combined with each other without conflict.

Claims (10)

1. Jacking mechanism, its characterized in that includes:

the fixing piece is used for abutting the top cover;

the supporting pieces are arranged below the fixing pieces at intervals and used for supporting the shell;

the driving piece is connected with the supporting piece and can drive the supporting piece to ascend so as to be close to the fixing piece;

the top surface of the first elastic piece covers and is connected to the bottom surface of the supporting piece, and the bottom surface of the first elastic piece is connected with the driving piece.

2. The jack-up mechanism of claim 1, wherein the first elastic member is one of a thermoplastic polyester elastomer, a polyurethane thermoplastic elastomer and a thermoplastic vulcanized rubber.

3. The jacking mechanism of claim 1, wherein the first resilient member has a thickness of 10mm to 20mm.

4. The jacking mechanism of claim 1, further comprising an intermediate member and a pushing member, wherein the pushing member is fixedly connected to the driving member, wherein the intermediate member is fixedly connected to the first elastic member, wherein the intermediate member is further slidably connected to the pushing member, and wherein the intermediate member is capable of sliding in a horizontal direction relative to the pushing member.

5. The lift mechanism of claim 4, further comprising a lock capable of restricting sliding movement of the intermediate member relative to the pusher.

6. The lifting mechanism according to claim 5, further comprising a second elastic member, wherein two ends of the second elastic member are respectively connected with the pushing member and the intermediate member, and elastic force of the second elastic member can drive the intermediate member to reset.

7. Jacking mechanism, its characterized in that includes:

the fixing piece is used for abutting the top cover;

the supporting pieces are arranged below the fixing pieces at intervals;

the first elastic piece is arranged on one side of the supporting piece, which faces the fixing piece, and can cover and support the bottom of the shell;

the driving piece is connected with the supporting piece and can drive the supporting piece to ascend so as to be close to the fixing piece.

8. The jacking mechanism of claim 7, wherein the first resilient member has a thickness of 10mm to 20mm.

9. Jacking mechanism, its characterized in that includes:

the fixing piece is used for abutting the top cover;

the supporting pieces are arranged below the fixing pieces at intervals and used for supporting the shell;

the driving piece is connected with the fixing piece and can drive the fixing piece to descend so as to be close to the supporting piece;

the bottom surface of the first elastic piece covers and is connected to the top surface of the fixing piece, and the top surface of the first elastic piece is connected with the driving piece.

10. Welding equipment, its characterized in that includes:

the jacking mechanism of any one of claims 1 to 9;

and the welding head can be used for welding the shell and the top cover.