CN219684454U - Welding jig and welding equipment - Google Patents

Abstract

The utility model discloses a welding fixture and welding equipment. The welding fixture comprises a base, a supporting plate, a pressing plate and a driving assembly. The support plate is arranged on the base and used for supporting workpieces to be welded. The clamp plate sets up in the work piece one side that deviates from the backup pad, and clamp plate and backup pad are arranged along first direction. The drive assembly comprises a driver and a transmission shaft, the driver is arranged on the base and located on one side, away from the pressing plate, of the supporting plate, the driver is connected to the transmission shaft, and the transmission shaft is used for penetrating through the supporting plate and the workpiece and is detachably connected to the pressing plate. The transmission shaft is provided with an inserting space, the inserting space penetrates through the transmission shaft along a second direction, a part of the pressing plate is inserted into the inserting space along the second direction, and the second direction is perpendicular to the first direction. The driver is used for driving the pressing plate to move along the first direction through the transmission shaft.

Description

Welding jig and welding equipment

Technical Field

The utility model relates to the field of batteries, in particular to a welding fixture and welding equipment.

Background

With the development of new energy technology, the battery is increasingly widely applied, for example, to mobile phones, notebook computers, battery cars, electric automobiles, electric airplanes, electric ships, electric toy automobiles, electric toy ships, electric toy airplanes, electric tools and the like.

In the production of batteries, it is often necessary to join a plurality of workpieces by welding. How to improve the welding efficiency and the welding yield is always an important research direction in the battery production process.

Disclosure of Invention

The utility model provides a welding fixture and welding equipment, which can improve welding efficiency and welding quality.

In a first aspect, the present utility model provides a welding fixture comprising a base, a support plate, a platen, and a drive assembly. The support plate is arranged on the base and used for supporting workpieces to be welded. The clamp plate sets up in the work piece one side that deviates from the backup pad, and clamp plate and backup pad are arranged along first direction. The drive assembly comprises a driver and a transmission shaft, the driver is arranged on the base and located on one side, away from the pressing plate, of the supporting plate, the driver is connected to the transmission shaft, and the transmission shaft is used for penetrating through the supporting plate and the workpiece and is detachably connected to the pressing plate. The transmission shaft is provided with an inserting space, the inserting space penetrates through the transmission shaft along a second direction, a part of the pressing plate is inserted into the inserting space along the second direction, and the second direction is perpendicular to the first direction. The driver is used for driving the pressing plate to move along the first direction through the transmission shaft.

The external welding device can weld the workpiece from the side of the support plate facing the pressing plate; and set up the driver to the backup pad one side that deviates from the clamp plate, can reduce the risk that driver and outside welding set interfere, improve welding efficiency and welding quality. The transmission shaft can penetrate through the workpiece by utilizing the opening of the workpiece, so that the transmission shaft is connected with the pressing plate; the clamp plate is connected with the transmission shaft can be dismantled, and it can be after the transmission shaft passes the work piece again install the transmission shaft, can reduce the clamp plate when the transmission shaft passes the work piece with the risk that the work piece interfered, reduces the assembly degree of difficulty.

The pressing plate is inserted into the transmission shaft, so that the pressing plate and the transmission shaft can be conveniently assembled and disassembled, and the welding efficiency is improved. The pressing plate is inserted into the transmission shaft along the second direction, and the transmission shaft can limit the pressing plate in the first direction, so that the pressing plate can provide power for pressing the workpiece.

The inserting space is arranged on the transmission shaft, so that the radial maximum size of the transmission shaft can be reduced, and the transmission shaft can conveniently penetrate through a workpiece. The inserting space penetrates through the transmission shaft along the second direction so as to increase the contact area between the pressing plate and the transmission shaft and improve the inserting strength between the pressing plate and the transmission shaft.

In some embodiments, in the first direction, the thickness of the platen is t and the size of the mating space is h; h and t satisfy: h-t is more than or equal to 0mm and less than or equal to 0.3mm. h-t is greater than or equal to 0mm, so that the difficulty in inserting the pressing plate into the inserting space is reduced, and the dismounting efficiency is improved. h-t is less than or equal to 0.3mm, so that the stability of the connection between the pressing plate and the transmission shaft can be improved, and the shaking amplitude of the pressing plate in the moving process can be reduced.

In some embodiments, the plugging space is provided in two, and the two plugging spaces are located at two sides of the transmission shaft along a third direction, and the third direction is perpendicular to the first direction and the second direction.

When the pressing plate presses the workpiece, the parts of the pressing plate, which are inserted into the two inserting spaces, can bear force, so that the maximum pressure born by the pressing plate can be reduced, and the risks of deformation and fracture of the pressing plate are reduced. The part of transmission shaft that is located between two grafting spaces can also carry out spacingly to the clamp plate in the third direction, reduces the risk of clamp plate dislocation.

In some embodiments, the platen is provided with a through slot that extends through the platen in a first direction, and the through slot forms an opening at an end of the platen in a second direction. The transmission shaft comprises an insertion part, the insertion space is positioned at the side of the insertion part along a third direction, and the third direction is perpendicular to the first direction and the second direction. The insertion portion is inserted into the through-groove via the opening, and a portion of the pressing plate is inserted into the insertion space.

When the pressing plate is inserted in the second direction, the through groove with the opening can avoid the insertion part of the transmission shaft, so that the pressing plate can be inserted in the insertion space, and the insertion strength of the transmission shaft and the pressing plate is improved.

In some embodiments, in the third direction, the insert has a dimension L1 and the through slots have dimensions L2, L1 and L2 satisfying: L2-L1 is less than or equal to 0.1mm and less than or equal to 0.5mm. L2-L1 is more than or equal to 0.1mm, so that the resistance of the insertion part to the through groove can be reduced, the difficulty of the insertion part to the through groove is reduced, and the disassembly and assembly efficiency of the pressing plate is improved; L2-L1 is less than or equal to 0.5mm, so that the stability of the connection between the pressing plate and the transmission shaft can be improved, and the shaking amplitude of the pressing plate in the moving process can be reduced.

In some embodiments, the transmission shaft is internally provided with an accommodating space communicated with the plugging space, and the welding fixture further comprises an inductor accommodated in the accommodating space. The clamp plate is equipped with identification structure, and the inductor can sense identification structure at the clamp plate with the in-process of inserting the grafting space.

After the pressing plate is inserted into the transmission shaft, if the sensor can sense the identification structure, the pressing plate can be judged to be inserted into place, and the driver can drive the pressing plate to move; if the sensor cannot sense the identification structure, the pressing plate can be judged to be not inserted in place, the sensor can send a signal, and the pressing plate is inserted again. According to the embodiment of the utility model, the sensor and the identification structure are arranged, so that the risk caused by the deflection of the pressing plate can be reduced, and the reliability is improved.

In some embodiments, the identification structure comprises a through hole. The through holes are easy to process and convenient to identify.

In some embodiments, in the first direction, the receiving space is located on a side of the plugging space facing the driver. The drive shaft can have a larger dimension on the side of the plugging space facing the driver, facilitating the setting of the accommodation space and the installation of the inductor.

In some embodiments, the inductor is threadably coupled to the drive shaft. The stability of inductor and transmission shaft connection can be improved in threaded connection, reduces the risk that the inductor rocked at the in-process that the transmission shaft removed. The threaded connection reduces the difficulty in mounting the inductor to the drive shaft.

In some embodiments, the drive assembly includes a plurality of drive shafts. Through setting up a plurality of transmission shafts, can improve the homogeneity of clamp plate atress, reduce the deformation of clamp plate.

In a second aspect, the present utility model provides a welding apparatus comprising a welding device and a welding jig provided by any one of the embodiments of the first aspect, the support plate and the pressure plate of the welding jig being used to clamp a workpiece; the welding device is used for welding workpieces.

Drawings

Features, advantages, and technical effects of exemplary embodiments of the present utility model will be described below with reference to the accompanying drawings.

FIG. 1 is a schematic diagram of a welding fixture according to some embodiments of the present utility model;

FIG. 2 is a simplified schematic illustration of a welding fixture provided in accordance with some embodiments of the present utility model, wherein the base is omitted;

FIG. 3 is a schematic view of the welding fixture shown in FIG. 2 at another angle;

FIG. 4 is an enlarged schematic view of FIG. 3 at the circle;

FIG. 5 is a simplified schematic illustration of a welding fixture provided in accordance with some embodiments of the present utility model, wherein the platen is omitted;

FIG. 6 is an enlarged schematic view of FIG. 5 at the circle;

FIG. 7 is a schematic partial cross-sectional view of a welding fixture provided in accordance with some embodiments of the present utility model;

FIG. 8 is an enlarged schematic view of the circle frame portion of FIG. 7;

FIG. 9 is a schematic diagram of a platen of a welding jig according to some embodiments of the present utility model;

FIG. 10 is a schematic cross-sectional view of a drive shaft of a welding fixture provided in accordance with some embodiments of the present utility model;

fig. 11 is a schematic diagram of a welding apparatus according to some embodiments of the present utility model.

In the drawings, the drawings are not necessarily to scale.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present 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.

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 in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model; the terms "comprising" and "having" and any variations thereof in the description of the utility model and the claims and the description of the drawings above are intended to cover a non-exclusive inclusion. The terms first, second and the like in the description and in the claims or in the above-described figures, are used for distinguishing between different objects and not necessarily for describing a particular sequential or chronological order.

Reference in the specification to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the utility model. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "attached" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

The term "and/or" in the present utility model is merely an association relation describing the association object, and indicates that three kinds of relations may exist, for example, a and/or B may indicate: a exists alone, A and B exist together, and B exists alone. In the present utility model, the character "/" generally indicates that the front and rear related objects are an or relationship.

In the embodiments of the present utility model, the same reference numerals denote the same components, and detailed descriptions of the same components are omitted in different embodiments for the sake of brevity. It should be understood that the thickness, length, width, etc. dimensions of the various components in the embodiments of the utility model shown in the drawings, as well as the overall thickness, length, width, etc. dimensions of the integrated device, are merely illustrative and should not be construed as limiting the utility model in any way.

In embodiments of the present utility model, "parallel" includes not only the case of absolute parallelism, but also the case of substantially parallelism that is conventionally recognized in engineering; meanwhile, "vertical" includes not only the case of absolute vertical but also the case of substantially vertical as conventionally recognized in engineering. Illustratively, the angle between the two directions is 85 ° -90 °, which can be considered to be perpendicular; the included angle between the two directions is 0-5 degrees, and the two directions can be considered to be parallel.

The term "plurality" as used herein refers to two or more (including two).

In the production of batteries, it is often necessary to join a plurality of workpieces by welding. For example, the case cover of the battery may be prepared by welding a plurality of sheet metal members together. For another example, welding may be used during assembly of the battery case.

Welding may join two workpieces by means of heat, high temperature or high pressure. During welding, two workpieces are usually required to be pressed tightly, so that welding gaps between the workpieces are reduced, and welding strength and welding yield are improved.

During welding, two workpieces can be clamped by using a welding fixture so as to be tightly attached. Typically, a welding jig clamps a workpiece using a support plate that can support the workpiece from the underside and a platen that can press the workpiece from the upper side so as to bring the two workpieces into close contact.

A welding device (e.g., a laser welding head) may weld two workpieces after they are brought into close proximity. During the welding process, the welding device needs to be continuously moved to form a weld mark of a preset shape. The larger the range of the welding marks, the larger the distance the welding device moves.

However, the drive means for powering the platen is typically disposed above the platen. When the soldering range is large (for example, when the soldering is in a ring shape), the driving device may interfere with the soldering apparatus; in order to reduce interference, welding is generally divided into a plurality of times, which causes low welding efficiency, and the joint of welding marks generated by the plurality of times of welding is easy to generate defects, so that the welding quality is affected.

In view of this, an embodiment of the present utility model provides a welding jig including a base, a support plate, a pressing plate, and a driving assembly. The support plate is arranged on the base and used for supporting workpieces to be welded. The clamp plate sets up in the work piece one side that deviates from the backup pad, and clamp plate and backup pad are arranged along first direction. The drive assembly comprises a driver and a transmission shaft, the driver is arranged on the base and located on one side, away from the pressing plate, of the supporting plate, the driver is connected to the transmission shaft, and the transmission shaft is used for penetrating through the supporting plate and the workpiece and is detachably connected to the pressing plate. The driver is used for driving the pressing plate to move along the first direction through the transmission shaft.

In the embodiment of the utility model, the driver is arranged on one side of the supporting plate, which is away from the pressing plate, so that the risk of interference between the driver and the welding device can be reduced, and the welding efficiency and the welding quality can be improved. The transmission shaft can penetrate through the workpiece by utilizing the opening of the workpiece; the clamp plate is connected with the transmission shaft can be dismantled, and it can be after the transmission shaft passes the work piece again install the transmission shaft, can reduce the clamp plate when the transmission shaft passes the work piece with the risk that the work piece interfered, reduces the assembly degree of difficulty.

The welding fixture provided by the embodiment of the utility model is not limited to the field of batteries, and can be used in other fields. For example, the welding jig may be applied to welding of sheet metal parts of a vehicle.

The welding jig according to the embodiment of the present utility model is described in detail below with reference to the accompanying drawings.

FIG. 1 is a schematic diagram of a welding fixture according to some embodiments of the present utility model; FIG. 2 is a simplified schematic illustration of a welding fixture provided in accordance with some embodiments of the present utility model, wherein the base is omitted; FIG. 3 is a schematic view of the welding fixture shown in FIG. 2 at another angle; FIG. 4 is an enlarged schematic view of FIG. 3 at the circle; FIG. 5 is a simplified schematic illustration of a welding fixture provided in accordance with some embodiments of the present utility model, wherein the platen is omitted; FIG. 6 is an enlarged schematic view of FIG. 5 at the circle; fig. 7 is a schematic partial cross-sectional view of a welding fixture provided in accordance with some embodiments of the utility model.

Referring to fig. 1 to 7, an embodiment of the present utility model provides a welding jig 1000 including a base 1, a support plate 2, a pressing plate 3, and a driving assembly 4. A support plate 2 is provided to the base 1 and is used to support the workpieces to be welded. The pressure plate 3 is arranged on the side of the workpiece facing away from the support plate 2, the pressure plate 3 and the support plate 2 being arranged in a first direction Z. The drive assembly 4 comprises a drive 41 and a drive shaft 42, the drive 41 being arranged at the base 1 and at the side of the support plate 2 facing away from the platen 3, the drive 41 being connected to the drive shaft 42, the drive shaft 42 being arranged to pass through the support plate 2 and the workpiece and being detachably connected to the platen 3. The driver 41 is used for driving the pressing plate 3 to move along the first direction Z through the transmission shaft 42.

The base 1 is used to house a support plate 2 and a drive assembly 4, which may serve as a base structure for the welding fixture 1000. Illustratively, the base 1 may be a base 1 made of a metal material (such as iron, copper, steel or alloy) with a certain strength, so as to have better structural stability and bearing capacity, thereby reducing deformation when being stressed and further improving the reliability of welding.

The support plate 2 is used for carrying workpieces to be welded. The welding fixture 1000 of the present embodiment may be used to clamp a first workpiece 5 and a second workpiece 6. The number of the second workpieces 6 may be one or a plurality.

The pressing plate 3 is disposed opposite to the support plate 2 in the first direction Z. Illustratively, the pressing plate 3 and the support plate 2 are used to clamp the first workpiece 5 and the second workpiece 6 from both sides so as to bring the first workpiece 5 and the second workpiece 6 into close contact.

The driver 41 may drive the transmission shaft 42 to reciprocate linearly in the first direction Z. Illustratively, the first direction Z is parallel to the axial direction of the drive shaft 42.

The driver 41 may include, but is not limited to, one of a motor, a cylinder, and a hydraulic cylinder. Of course, the driver 41 may be other components capable of driving the transmission shaft 42 to make a linear motion.

The driver 41 may be coupled to the drive shaft 42 by a snap fit, threaded connection, adhesive, welding, fastener connection, or other means.

The driver 41 may be directly connected to the drive shaft 42, or may be indirectly connected to the drive shaft 42 through other members.

The drive shaft 42 may be cylindrical, prismatic, or other shaft-like structure.

The number of the transmission shafts 42 of the driving assembly 4 may be one or more.

The pressure plate 3 may be connected to the drive shaft 42 by a snap fit, plug fit, threaded connection, fastener connection, magnetic attachment, or other removable connection.

The platen 3 may be used to press against a second workpiece 6 provided with a passage through which the drive shaft 42 may pass. The channel may be an opening, for example.

The welding fixture 1000 of the embodiment of the utility model can clamp various workpieces according to the requirements. The operation of the welding fixture 1000 is briefly described in one manner.

Illustratively, the first and second workpieces 5, 6 may be welded in accordance with the following steps;

i) the driver 41 drives the drive shaft 42 to rise in the first direction Z and pass through the support plate 2;

II) placing the first workpiece 5 on the support plate 2, alternatively the first workpiece 5 may have a first opening 51, the drive shaft 42 being inserted into the first opening 51;

III) placing the second workpiece 6 on the first workpiece 5, optionally with the second workpiece 6 covering the first opening 51 and the second workpiece 6 being provided with a second opening 61, the transmission shaft 42 passing through the second opening 61;

iv) mounting the pressing plate 3 to the portion of the drive shaft 42 that protrudes from the second opening 61;

v) the driver 41 drives the pressing plate 3 to move towards the second workpiece 6 through the transmission shaft 42 so as to press the second workpiece 6 downwards, so that the second workpiece 6 is tightly pressed on the first workpiece 5;

vi) a welding device, for example a laser welding device, emits laser light towards a surface of the second workpiece 6 facing away from the first workpiece 5 to weld a portion of the second workpiece 6 overlapping the first workpiece 5 in the first direction Z.

VII) removing the press plate 3 and removing the first and second workpieces 5, 6 welded together.

In the embodiment of the utility model, the welding device can weld the workpiece from the side of the support plate 2 facing the pressing plate 3; and the driver 41 is arranged on one side of the supporting plate 2, which is away from the pressing plate 3, so that the risk of interference between the driver 41 and an external welding device can be reduced, and the welding efficiency and the welding quality can be improved. The transmission shaft 42 can penetrate through the workpiece by utilizing the opening of the workpiece to realize connection with the pressing plate 3; the pressing plate 3 is detachably connected with the transmission shaft 42, and the pressing plate 3 can be mounted on the transmission shaft 42 after the transmission shaft 42 passes through a workpiece, so that the risk of interference between the pressing plate 3 and the workpiece when the transmission shaft 42 passes through the workpiece can be reduced, and the assembly difficulty is reduced.

In some embodiments, when the workpiece is not required to be clamped, the transmission shaft 42 can also be retracted to the lower side of the support plate 2 under the driving of the driver 41, so that the space occupied by the welding fixture 1000 is reduced, and the risk of collision of the welding fixture 1000 with other devices during the carrying process is reduced.

In some embodiments, the size of the drive shaft 42 is smaller, and therefore, the welding fixture 1000 may be applied to workpieces having smaller openings.

In some embodiments, the weld marks formed by welding the first workpiece 5 and the second workpiece 6 encircle the first opening 51 for one week. The platen 3 is located in a region surrounded by the solder marks as viewed in the first direction Z.

In the welding process, the pressing plate 3 is not easy to interfere with a welding device, the welding device can continuously weld at one time and form annular closed welding marks, the welding efficiency and the welding quality are improved, and the welding defects are reduced.

In some embodiments, the drive shaft 42 may be used for positioning of the second workpiece 6. Illustratively, the shape of the driving shaft 42 is matched with the shape of the second opening 61, and the driving shaft 42 inserted into the second opening 61 can position the second workpiece 6, thereby improving positioning accuracy and efficiency.

The embodiment of the utility model utilizes the transmission shaft 42 for positioning, can reduce the number of the positioning pins of the welding fixture 1000, and simplifies the structure of the welding fixture 1000.

In some embodiments, the first direction Z is parallel to the up-down direction.

In some embodiments, the base 1 includes a base plate 11 and a mount 12, the mount 12 being fixed to the base plate 11. The driver 41 and the support plate 2 may be mounted to the mount 12.

In some embodiments, the driver 41 is secured to the mount 12 by fasteners. Alternatively, the driver 41 is fixed to the mount 12 by bolts.

In some embodiments, the driver 41 comprises a cylinder.

In some embodiments, the welding fixture 1000 further includes a clamping mechanism 7 disposed on the substrate 11. The clamping mechanism 7 may be used to clamp the first workpiece 5.

For example, in the case where the size of the first workpiece 5 is large, the region of the first workpiece 5 to be welded may be supported by the support plate 2. The edge of the first workpiece 5 remote from the welding zone may be clamped, supported by the clamping means 7.

In some embodiments, the welding fixture 1000 may include a plurality of clamping assemblies, each clamping assembly including a support plate 2, a platen 3, and a drive assembly 4. The plurality of clamping assemblies can simultaneously press the plurality of second workpieces 6 on the first workpiece 5, so that welding efficiency is improved.

In some embodiments, the base 1 includes a plurality of mounts 12, with one clamp assembly mounted on each mount 12.

FIG. 8 is an enlarged schematic view of the circle frame portion of FIG. 7; FIG. 9 is a schematic diagram of a platen of a welding jig according to some embodiments of the present utility model; fig. 10 is a schematic cross-sectional view of a drive shaft of a welding jig provided in some embodiments of the utility model.

Referring to fig. 4 to 10, in some embodiments, the platen 3 is inserted into the transmission shaft 42 along a second direction X, and the second direction X is perpendicular to the first direction Z.

In some examples, the platen 3 is provided with a slot into which the drive shaft 42 is inserted to mate the platen 3 with the drive shaft 42. In other examples, the drive shaft 42 is provided with a slot into which the platen 3 is inserted to allow the platen 3 to be inserted into the drive shaft 42.

In the embodiment of the utility model, the pressing plate 3 is spliced with the transmission shaft 42, so that the pressing plate 3 and the transmission shaft 42 can be conveniently disassembled and assembled, and the welding efficiency is improved. The pressing plate 3 is inserted into the transmission shaft 42 along the second direction X, and the transmission shaft 42 can limit the pressing plate 3 in the first direction Z, so that the pressing plate 3 can provide power for pressing the workpiece.

In some embodiments, the drive shaft 42 is provided with a socket space 421, and a portion of the platen 3 is inserted into the socket space 421.

The mating space 421 includes, but is not limited to, at least one of a hole and a groove.

The inserting space 421 is arranged on the transmission shaft 42, so that the maximum radial size of the transmission shaft 42 can be reduced, and the transmission shaft 42 can conveniently penetrate through a workpiece.

In some embodiments, in the first direction Z, the thickness of the platen 3 is t, and the size of the plugging space 421 is h; h and t satisfy: h-t is more than or equal to 0mm and less than or equal to 0.3mm.

By way of example, h-t is 0mm, 0.05mm, 0.1mm, 0.15mm, 0.2mm, 0.25mm or 0.3mm.

h-t is larger than or equal to 0mm, so that the difficulty of inserting the pressing plate 3 into the inserting space 421 is reduced, and the dismounting efficiency is improved. h-t is smaller than or equal to 0.3mm, so that the stability of the insertion connection of the pressing plate 3 and the transmission shaft 42 can be improved, and the shaking amplitude of the pressing plate 3 in the moving process can be reduced.

In some embodiments, 0.1 mm.ltoreq.h-t.ltoreq.0.2 mm.

In some embodiments, the mating space 421 extends through the drive shaft 42 in the second direction X.

As an example, the plugging space 421 may be a through hole penetrating the transmission shaft 42 in the second direction X, or may be an open slot penetrating the transmission shaft 42 in the second direction X.

The embodiment of the utility model can increase the contact area between the pressing plate 3 and the transmission shaft 42 and improve the inserting strength between the pressing plate 3 and the transmission shaft 42.

In some embodiments, the plugging space 421 is provided in two, and the two plugging spaces 421 are located at two sides of the transmission shaft 42 along the third direction Y, and the third direction Y is perpendicular to the first direction Z and the second direction X.

Illustratively, the mating space 421 is a slot-like structure, in other words, the mating space 421 may be a slot.

When the pressing plate 3 presses the workpiece, the part of the pressing plate 3 inserted into the two inserting spaces 421 can bear force, so that the maximum pressure of the pressing plate 3 can be reduced, and the risks of deformation and fracture of the pressing plate 3 are reduced. The portion of the transmission shaft 42 located between the two plugging spaces 421 can also limit the pressing plate 3 in the third direction Y, so as to reduce the risk of dislocation of the pressing plate 3.

In some embodiments, the platen 3 is provided with a through slot 31, the through slot 31 extending through the platen 3 in the first direction Z, and the through slot 31 forming an opening at an end of the platen 3 in the second direction X. The transmission shaft 42 includes an insertion portion 422, and the insertion space 421 is located at a side of the insertion portion 422 along a third direction Y, which is perpendicular to the first direction Z and the second direction X. The insertion portion 422 is inserted into the through groove 31 via the opening, and a part of the pressing plate 3 is inserted into the insertion space 421.

In some examples, the plugging space 421 is one, and the plugging space 421 is located at one side of the insertion portion 422 along the third direction Y; in other examples, there are two plugging spaces 421, and in the third direction Y, the insertion portion 422 is located between the two plugging spaces 421. The insertion portion 422 has a solid structure.

When the pressing plate 3 is inserted in the second direction X, the through groove 31 with the opening can avoid the insertion part 422 of the transmission shaft 42, so that the pressing plate 3 can be inserted into the insertion space 421, and the insertion strength of the transmission shaft 42 and the pressing plate 3 is improved.

In some embodiments, in the third direction Y, the insert 422 has a dimension L1, the through slot 31 has dimensions L2, and L1 and L2 satisfy: L2-L1 is less than or equal to 0.1mm and less than or equal to 0.5mm.

Alternatively, L2-L1 is 0.1mm, 0.2mm, 0.3mm, 0.4mm or 0.5mm.

L2-L1 is larger than or equal to 0.1mm, so that the resistance of the insertion part 422 to the through groove 31 can be reduced, the difficulty of the insertion part 422 to the through groove 31 is reduced, and the dismounting efficiency of the pressing plate 3 is improved; L2-L1 is less than or equal to 0.5mm, so that the stability of the connection between the pressing plate 3 and the transmission shaft 42 can be improved, and the shaking amplitude of the pressing plate 3 in the moving process can be reduced.

In some embodiments, the transmission shaft 42 is provided with a receiving space 423 in communication with the plugging space 421, and the welding fixture 1000 further includes an inductor 8 received in the receiving space 423. The platen 3 is provided with an identification structure 32, and the sensor 8 is capable of sensing the identification structure 32 during the process of inserting the platen 3 into the insertion space 421.

The identifying structure 32 may be a space structure such as a hole or a groove, a pattern with a specific shape or color coated on the surface of the platen 3, or other structures that can be identified.

After the pressing plate 3 is inserted into the transmission shaft 42, if the sensor 8 can sense the identification structure 32, the pressing plate 3 can be judged to be inserted into place, and the driver 41 can drive the pressing plate 3 to move; if the sensor 8 fails to sense the identification feature 32, it may be determined that the platen 3 is not plugged in place, the sensor 8 may signal that the platen 3 is plugged in again. By arranging the sensor 8 and the identification structure 32, the embodiment of the utility model can reduce the risk caused by the deflection of the pressing plate 3 (such as the pressing plate 3 is impacted by a welding device) and improve the reliability.

In some embodiments, the identification feature 32 includes a through hole. The through holes are easy to process and convenient to identify.

In some embodiments, the sensor 8 comprises a photo sensor.

In some embodiments, in the first direction Z, the receiving space 423 is located at a side of the plugging space 421 facing the driver 41.

The drive shaft 42 may have a larger size on the side of the plug space 421 facing the driver 41, facilitating the provision of the receiving space 423 and the installation of the inductor 8.

In some embodiments, the inductor 8 is threadably coupled to the drive shaft 42. The threaded connection can improve the stability of the connection of the inductor 8 and the transmission shaft 42, and reduce the risk of shaking of the inductor 8 in the process of moving the transmission shaft 42. The threaded connection reduces the difficulty of mounting the inductor 8 to the drive shaft 42.

In some embodiments, the inductor 8 is provided with a connector 81, the connector 81 being connectable to a controller by a wire harness.

For example, the detection signal sensed by the sensor 8 may be transmitted to the controller through the wire harness, and the controller controls the start and stop of the driver 41 and the start and stop of the welding device according to the detection signal.

In some embodiments, the drive assembly 4 includes a plurality of drive shafts 42.

Illustratively, the number and shape of the drive shafts 42 may be determined according to the number and shape of the second openings 61 of the second workpiece 6.

By providing a plurality of transmission shafts 42, the uniformity of the stress of the platen 3 can be improved, and the deformation of the platen 3 can be reduced.

Fig. 11 is a schematic diagram of a welding apparatus according to some embodiments of the present utility model.

As shown in fig. 11, the embodiment of the present utility model further provides a welding apparatus, which includes a welding device 2000 and the welding fixture 1000 provided in any of the above embodiments. The support plate 2 and the pressing plate 3 are used for clamping a workpiece. The welding device 2000 is used for welding workpieces.

In some embodiments, welding device 2000 comprises a laser welding device.

Referring to fig. 1 to 10, an embodiment of the present utility model provides a welding jig 1000 including a base 1 and a plurality of clamping assemblies. The base 1 includes a substrate 11 and a plurality of mount bases 12, and the plurality of mount bases 12 are fixed to the substrate 11. The clamping assemblies are the same in number and are arranged in one-to-one correspondence with the mounting seats 12.

The clamping assembly comprises a support plate 2, a pressure plate 3 and a driving assembly 4. The support plate 2 and the drive assembly 4 are mounted to a mount 12.

The support plate 2 is used for supporting workpieces to be welded. The pressure plate 3 is arranged on the side of the workpiece facing away from the support plate 2, the pressure plate 3 and the support plate 2 being arranged in a first direction Z. The driving assembly 4 comprises a driver 41 and a plurality of driving shafts 42, wherein the driver 41 is arranged on the mounting seat 12 and is positioned on one side of the supporting plate 2 away from the pressing plate 3, the driver 41 is connected with the driving shafts 42 and is used for driving the driving shafts 42 to move along the first direction Z, and the driving shafts 42 are used for penetrating the supporting plate 2 and the workpiece and are connected with the pressing plate 3.

The transmission shaft 42 is provided with two plug-in spaces 421, each plug-in space 421 is of a groove-shaped structure and penetrates through the transmission shaft 42 along the second direction X, the two plug-in spaces 421 are arranged along the third direction Y, and the first direction Z, the second direction X and the third direction Y are perpendicular to each other. The pressing plate 3 can be inserted into the two inserting spaces 421 along the second direction X, so that the pressing plate 3 is inserted into the transmission shaft 42 along the second direction X.

The transmission shaft 42 is internally provided with an accommodating space 423 communicating with the plugging space 421, and the welding jig 1000 further includes an inductor 8 accommodated in the accommodating space 423. The platen 3 is provided with an identification through hole, and the sensor 8 can sense the identification through hole in the process of inserting the platen 3 into the insertion space 421.

While the utility model has been described with reference to a preferred embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the utility model, and in particular, the technical features set forth in the various embodiments may be combined in any manner so long as there is no structural conflict. The present utility model is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions falling within the scope of the claims.

Claims (11)

1. A welding fixture, comprising:

a base;

the support plate is arranged on the base and used for supporting a workpiece to be welded;

the pressing plate is arranged on one side, away from the supporting plate, of the workpiece, and the pressing plate and the supporting plate are arranged along a first direction;

the driving assembly comprises a driver and a transmission shaft, the driver is arranged on the base and is positioned on one side, away from the pressing plate, of the supporting plate, the driver is connected to the transmission shaft, the transmission shaft is used for penetrating through the supporting plate and the workpiece and is detachably connected to the pressing plate, the transmission shaft is provided with an inserting space, the inserting space penetrates through the transmission shaft along a second direction, a part of the pressing plate is inserted into the inserting space along the second direction, and the second direction is perpendicular to the first direction; the driver is used for driving the pressing plate to move along the first direction through the transmission shaft.

2. The welding jig according to claim 1, wherein in the first direction, the thickness of the pressing plate is t, and the size of the insertion space is h; h and t satisfy:

0mm≤h-t≤0.3mm。

3. the welding fixture of claim 1, wherein the mating space is provided in two, the two mating spaces being located on both sides of the drive shaft in a third direction, the third direction being perpendicular to the first and second directions.

4. The welding jig of claim 1 wherein the platen is provided with a through slot that passes through the platen in the first direction and that forms an opening at an end of the platen in the second direction;

the transmission shaft comprises an insertion part, the insertion space is positioned at the side of the insertion part along a third direction, and the third direction is perpendicular to the first direction and the second direction;

the insertion portion is inserted into the through groove via the opening, and a portion of the pressing plate is inserted into the insertion space.

5. The welding jig of claim 4 wherein in the third direction the insert is L1 in size and the through slots are L2 in size, L1 and L2 satisfying:

0.1mm≤L2-L1≤0.5mm。

6. the welding jig according to claim 1, wherein an accommodation space communicating with the insertion space is provided inside the drive shaft, the welding jig further comprising an inductor accommodated in the accommodation space;

the clamp plate is equipped with identification structure, the inductor can be in the clamp plate with insert the in-process in grafting space is sensed identification structure.

7. The welding fixture of claim 6, wherein the identification feature comprises a through hole.

8. The welding fixture of claim 6, wherein in the first direction, the receiving space is on a side of the mating space facing the driver.

9. The welding fixture of claim 6, wherein the inductor is threadably coupled to the drive shaft.

10. The welding fixture of claim 1, wherein the drive assembly comprises a plurality of the drive shafts.

11. A welding apparatus, comprising:

the welding fixture of any of claims 1-10, the support plate and the pressure plate to clamp a workpiece; and

and the welding device is used for welding the workpiece.