CN217667072U - Welded assembly - Google Patents

Abstract

The utility model discloses a welding assembly, which comprises a base, a plurality of lower welding tongs and an upper welding tongs, wherein the lower welding tongs are arranged on the base; the upper electrode holder is movable relative to the base to switchably oppose one of the plurality of lower electrode holders, and the upper electrode holder is adapted to cooperate with the opposing lower electrode holder to hold, release, and weld a workpiece. According to the utility model discloses the welding subassembly has set up a plurality of soldering turret down to the removal that utilizes the soldering turret adjusts welding position, has characteristics such as small, the combination is nimble, it is little to receive the restriction of product size shape, space accessibility height.

Description

Welded assembly

Technical Field

The utility model relates to the field of welding technique, in particular to welding assembly.

Background

In the field of automotive welding production, resistance spot welding is the primary connection method, with lead-out welding being used as the primary solution for improving operability ergonomics in the event that conventional welding tongs are inaccessible.

There are two main ways for lead-out welding in the industry today: 1. each welding point is provided with a special lead-out welding clamp; 2. each welding point is provided with a set of non-standard leading-out welding mechanism. The lead-out welding tongs in the mode 1 are consistent with the structure of the conventional resistance spot welding tongs and are formed by combining a movable electrode arm and a fixed electrode arm, and the structure of the mode is complex and occupies large space; mode 2 is a lead-out welding nonstandard soldering turret, and is similar to the soldering turret in mode 1 in structure, and the difference lies in that the sound electrode arm adopts the nonstandard system, and relative arrangement spatial structure is nimble.

Both the above two modes are restricted by the moving and static electrode arms of the main body, and have the following problems:

the welding point positioning device is not suitable for areas with densely distributed welding points, occupies the space of a positioning clamp at the periphery of a product, has large restriction on the size and the shape of the product due to the size of a movable electrode arm and a static electrode arm, causes the position deviation of the welding point due to abrasion compensation, and the like, and restricts the use scene of leading-out welding.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a welding assembly has set up a plurality of soldering turret down to the removal that utilizes the soldering turret adjusts the welding position, has characteristics such as small, the combination is nimble, it is little to receive the restriction of product size shape, space accessibility height.

The welding assembly according to the embodiment of the utility model comprises a base, a plurality of lower welding tongs and an upper welding tongs, wherein the lower welding tongs are arranged on the base; the upper electrode holder is movable relative to the base to switchably oppose one of the plurality of lower electrode holders, and the upper electrode holder is adapted to cooperate with the opposing lower electrode holder to hold, release, and weld a workpiece.

According to the utility model discloses the welding subassembly has set up a plurality of soldering turret down to the removal that utilizes the soldering turret adjusts welding position, has characteristics such as small, the combination is nimble, it is little to receive the restriction of product size shape, space accessibility height.

Optionally, at least one of the upper electrode holder and the lower electrode holder comprises a welding device and a driving device, wherein the driving device is connected with the welding device and is suitable for driving the welding device to extend and retract so as to clamp and release the workpiece.

Optionally, the at least one welding tongs further comprises an insulation device, and the insulation device is arranged between the driving device and the welding device to insulate the welding device from the driving device.

Optionally, the insulation means comprises: the gasket, the partition plate and the sleeve are arranged on one side of the welding device; the partition plate is arranged on the other side of the welding device, the sleeve is embedded into the welding device, and two ends of the sleeve are opposite to the gasket and the partition plate respectively; .

Optionally, the at least one welding jaw further comprises a limiting device configured and adapted to limit the displacement of the welding device extension.

Optionally, the at least one soldering turret further includes a mounting seat and a fixing block, the fixing block is movably connected to the mounting seat, the driving device is mounted on the mounting seat and connected to the fixing block to drive the fixing block to move, the welding device is connected to the fixing block, and the limiting device is connected to the mounting seat and limits the fixing block.

Optionally, the at least one soldering turret further includes a guide rod, the guide rod is telescopically embedded in the mounting base, the driving device and the fixing block are respectively disposed on two opposite sides of the mounting base, one end of the guide rod is connected with a driving shaft of the driving device, and the other end of the guide rod is connected with the fixing block.

Optionally, the limiting device includes a main body portion and a limiting block, the main body portion is connected to the mounting seat, the limiting block is connected to the main body portion to form an "L" shape, and the fixing block is limited between the limiting block and the mounting seat.

Optionally, the welding device includes an electrode arm and an electrode cap, and the electrode cap is sleeved on an end of the electrode arm.

Optionally, the drive means is a pneumatic drive or a hydraulic drive.

Optionally, the welding assembly further comprises a mechanical arm connected with the upper welding tongs to drive the upper welding tongs to move.

Optionally, a handheld structure is arranged on the upper welding tongs, and the handheld structure is suitable for being handheld to drive the upper welding tongs to move.

Drawings

Fig. 1 is a schematic view of a welding assembly according to an embodiment of the present invention.

Fig. 2 is a schematic view of a welding jaw of a welding assembly according to an embodiment of the present invention.

Fig. 3 is a schematic view of a driving device of a welding device according to an embodiment of the present invention.

Reference numerals:

the welding assembly 100, the mounting frame 10, the bottom plate 11, the side plate 12, the lower electrode holder 20a, the upper electrode holder 20b, the welding device 21, the electrode arm 211, the electrode cap 212, the driving device 22, the fixing block 221, the guide rod 222, the insulating device 23, the gasket 231, the partition plate 232, the limiting device 24, the main body portion 241, the limiting block 242, the mounting seat 25, the mechanical arm 30 and the mounting plate 31.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

Referring to fig. 1, a welding assembly 100 according to an embodiment of the present invention includes a base, a plurality of lower electrode holders 20a and upper electrode holders 20b.

Wherein, a plurality of lower electrode holders 20a are arranged on the base, and the base provides support for the plurality of lower electrode holders 20 a. The upper electrode holder 20b is movable relative to the base to switchably oppose one of the plurality of lower electrode holders 20 a. In use, the upper electrode holder 20b can be positioned opposite one lower electrode holder 20a to effect welding of a workpiece, and the upper electrode holder 20b can be moved to position the upper electrode holder 20b opposite the other lower electrode holder 20a for a subsequent weld. And the upper electrode holder 20b is adapted to cooperate with the opposite lower electrode holder 20a to hold, release and weld a workpiece so that welding of the workpiece can be performed by cooperation of the upper electrode holder 20b with the lower electrode holder 20a, and after completion of welding, the upper electrode holder 20b is moved to engage the upper electrode holder 20b with the other lower electrode holder 20 a.

According to the utility model discloses welding assembly 100, a plurality of soldering turret 20a down have been set up, come to pair with a plurality of soldering turret 20a alternatives through removing soldering turret 20b, need not set up in addition that the drive structure comes to drive down soldering turret 20a and realize the welding of work piece different positions, can avoid down the influence of soldering turret 20 a's drive structure to welding assembly 100's anchor clamps, improve space utilization, can utilize the removal of soldering turret 20b to adjust the welding position, small has, the combination is nimble, it is little to receive product size shape restriction, characteristics such as space accessibility height.

In addition, the upper electrode holder 20b and the lower electrode holder 20a are relatively independent, which can provide a greater degree of freedom for the welding assembly 100, and achieve a better welding effect. Specifically, in use, a workpiece is placed at a predetermined position, the upper electrode holder 20b is moved to be opposed to one lower electrode holder 20a, and the workpiece is held by cooperation of the upper electrode holder 20b and the lower electrode holder 20a, a holding force is provided for welding, and welding of the workpiece is completed by cooperation of the upper electrode holder 20b and the lower electrode holder 20 a; after the welding is completed, the upper and lower nippers 20b and 20a are controlled to move away from each other to loosen the workpiece; the upper electrode holder 20b is then moved to be opposed to the other lower electrode holder 20a for the next welding.

The lower electrode holder 20a of the present invention may include two, three or more electrode holders, and may be set according to actual requirements. In addition, according to actual requirements, the plurality of lower welding tongs 20a can adopt different arrangement forms to satisfy different welding requirements. The utility model provides a plurality of soldering turret 20a down can be arranged along straight line, curve, broken line etc. correspond ground soldering turret 20b and can remove along the direction of arranging of soldering turret 20a down.

In addition, in order to facilitate actions such as clamping and pressing a workpiece, at least one of the upper electrode holder 20b and the lower electrode holder 20a may include a driving device 22, and clamping and releasing the workpiece may be achieved by driving the driving device 22, and of course, the upper electrode holder 20b or the lower electrode holder 20a may be driven by another driving structure to clamp and release the workpiece, for example, the mechanical arm 30 of the present invention described below may be used to clamp and release the workpiece. The present invention provides some embodiments that facilitate clamping and releasing a workpiece, but this is not a limitation of the scope of the present invention.

As shown in fig. 1 and 2, in some embodiments of the present invention, at least one of the upper electrode holder 20b and the lower electrode holder 20a includes a welding device 21 and a driving device 22, and the driving device 22 is connected to the welding device 21 and adapted to drive the welding device 21 to extend and retract to clamp and unclamp a workpiece. The method comprises the following technical scheme: the upper electrode holder 20b includes a welding device 21 and a driving device 22; the lower electrode holder 20a includes a welding device 21 and a driving device 22; the upper electrode holder 20b and the lower electrode holder 20a each comprise a welding device 21 and a drive device 22. Wherein the welding device 21 can be used to weld a workpiece and the driving device 22 can drive the welding device 21 to extend and retract to achieve clamping and unclamping of the workpiece.

Optionally, the upper electrode holder 20b and the lower electrode holder 20a each comprise a welding device 21, and at least one of the upper electrode holder 20b and the lower electrode holder 20a comprises a driving device 22, wherein during welding, the driving device 22 drives the welding device 21 of the upper electrode holder 20b and the welding device 21 of the lower electrode holder 20a to cooperate to clamp and weld a workpiece; after the welding is completed, the driving device 22 drives the welding device 21 of the upper electrode holder 20b and the welding device 21 of the lower electrode holder 20a away from each other to loosen the workpiece.

Taking the following electrode holder 20a including the driving device 22 and the welding device 21 as an example, before welding, the welding devices 21 in the plurality of lower electrode holders 20a are all in a retracted state, and the workpiece is mounted in place and positioned by a jig; the upper electrode holder 20b is opposite to one of the lower electrode holders 20a, the welding device 21 is driven by the driving device 22 of the lower electrode holder 20a to extend out and press against the workpiece, and the upper electrode holder 20b and the lower electrode holder 20a are matched to press and weld the workpiece; after the welding is completed, the corresponding welding device 21 is driven to retract by the driving device 22, and the upper electrode holder 20b is moved to a position opposite to the other lower electrode holder 20a to perform the next welding process.

As shown in fig. 2, the welding device 21 may include an electrode arm 211 and an electrode cap 212, and the electrode cap 212 is sleeved on an end of the electrode arm 211. The electrode arm 211 may be used to connect an electrode, and an electrode cap 212 may be provided at an end of the electrode arm 211 for welding a workpiece. Wherein, the electrode cap 212 may be provided as a cylindrical part, and one end of the electrode cap 212 is open and the other end is closed, so as to construct a groove inside the electrode cap 212, embedding the electrode arm 211 into the electrode cap 212. The outer end surface of the closed end of the electrode cap 212 may be configured as an arc-shaped surface having a middle portion protruding toward the outer side of the electrode cap 212. The welding device 21 is disposed on each of the upper electrode holder 20b and the lower electrode holder 20a, the end surface of the electrode cap 212 on the upper electrode holder 20b is different from the end surface of the electrode cap 212 on the lower electrode holder 20a in size, and the end surface of the electrode cap 212 on the upper electrode holder 20b is larger than the end surface of the electrode cap 212 on the lower electrode holder 20 a. Since the sizes of the outer end surfaces of the electrode caps 212 of the upper electrode holder 20b and the lower electrode holder 20a corresponding to each other are different, even if there is a fitting deviation between the two opposing electrode caps 212 during welding, welding adjustment can be satisfied to complete welding. Wherein the electrode cap 212 may be provided in a cylindrical shape, and the radial dimension of the end surface of the electrode cap 212 of the upper electrode holder 20b and the radial dimension of the end surface of the electrode cap 212 of the lower electrode holder 20a, which correspond to each other, are different. Of course, the electrode cap 212 may be formed in other shapes, such as a square cylinder, a square table, a pentagonal cylinder, etc.

The electrode arm 211 may include a positioning block and a cantilever, the cantilever is connected to the positioning block, and the end of the cantilever is connected to the electrode cap 212, wherein the end face and the side face of the positioning block are both provided with mounting holes for connecting the driving device 22 and the power supply. In addition, the utility model discloses an electrode cap 212 is connected with electrode arm 211 detachably to make things convenient for the dismouting and the change of electrode cap 212.

Further, since insulation is required between the welding device 21 and the driving device 22, an insulating structure may be provided in the welding device 21 or the driving device 22, or an insulating structure may be provided between the welding device 21 and the driving device 22 for insulation. As shown in fig. 2, in some embodiments of the present invention, the at least one welding tongs further comprises an insulating device 23, and the insulating device 23 is disposed between the driving device 22 and the welding device 21 to insulate the welding device 21 from the driving device 22, so as to improve the stability of the welding assembly 100.

Wherein, the insulating device 23 may include a washer 231, a spacer 232, and a sleeve (not shown), the washer 231 is disposed on one side of the welding device 21, the spacer 232 is disposed on the other side of the welding device 21, the sleeve may be embedded in the welding device 21, and both ends of the sleeve are respectively opposite to the washer 231 and the spacer 232, and when the welding device 21 and the driving device 22 are connected by a fixing member such as a bolt or a screw, the bolt may pass through the washer 231, the sleeve, and the spacer 232 to be connected to the driving device 22. The washer 231 spaces the head of the bolt from the welding device 21, the sleeve spaces the shank of the bolt from the welding device 21, and the spacer 232 spaces the drive device 22 from the welding device 21, thereby providing insulation between the bolt and the welding device 21, and thus between the drive device 22 and the welding device 21. In addition, the sleeve may be attached, nested, spaced apart, or integrally formed with the spacer 232 and the sleeve may be attached, nested, spaced apart, or integrally formed with the washer 231. Wherein, the driving device 22 may include a fixing block 221, the welding device 21 may be fixedly connected with the fixing block 221 and fixedly connect the fixing block 221 with the driving device 22, and the fixing block 221 may be connected with a driving shaft of the driving device 22.

Additionally, the utility model provides a welding set 21 can stretch out and draw back in order to compress tightly the work piece through drive arrangement 22 drive, in order to avoid the excessive pressure of supporting to the work piece, the utility model discloses in still having set up stop device 24, stop device 24 can carry on spacingly to welding set 21 to in order to avoid the flexible displacement of welding set 21 too big, not only can guarantee the stable connection between drive arrangement 22 and the welding set 21, can also provide the protection to the work piece. In particular, the at least one welding jaw further comprises a limiting device 24, the limiting device 24 being configured and adapted to limit the extension displacement of the welding device 21.

The utility model discloses a stop device 24 can set to direct spacing welding set 21's structure, for example, sets up the stopper at stop device 24's tip, and the stopper is located on insulating device 23's the direction of stretching out to block insulating device 23, when insulating device 23 removed extreme position, will be blockked by the stopper, thereby through the limiting displacement of stopper, realize the injecing to the displacement that welding set 21 stretches out.

As shown in fig. 2 and 3, in some embodiments of the present invention, the at least one soldering turret further includes a mounting seat 25, the mounting seat 25 may provide support for the driving device 22 and the welding device 21, and in consideration of requirements of insulation, protection of the welding device 21, etc., the at least one soldering turret further includes a fixing block 221, the fixing block 221 is movably connected to the mounting seat 25, wherein the driving device 22 is mounted on the mounting seat 25 and connected to the fixing block 221 to drive the fixing block 221 to move, the welding device 21 is connected to the fixing block 221, and the limiting device 24 is connected to the mounting seat 25 and limits the fixing block 221. The driving device 22 can be stably installed through the installation seat 25, the driving stability of the driving device 22 on the welding device 21 is improved, the limiting device 24 is used for limiting the welding device 21, and the stability and the safety of the welding process are improved.

As shown in fig. 2 and 3, in some embodiments of the present invention, the lower electrode holder 20a is disposed on a base, the base may include a mounting frame 10, the mounting frame 10 is connected to the mounting base 25, the driving device 22 is stably mounted on the base, wherein the mounting frame 10 may include a bottom plate 11 and a side plate 12, the bottom plate 11 may be connected to the base, the side plate 12 may be connected to the mounting base 25, the side plate 12 may be perpendicular to the bottom plate 11, so as to facilitate stable mounting of the bottom plate 11 and the side plate 12, and a reinforcing rib may be connected between the bottom plate 11 and the side plate 12, so as to improve structural strength of the mounting frame 10. In addition, the installation of the plurality of lower electrode holders 20a may be implemented by one mounting bracket 10, or the individual installation of the plurality of lower electrode holders 20a may be implemented by providing one mounting bracket 10 corresponding to each lower electrode holder 20 a.

As shown in fig. 3, the at least one soldering turret further includes a guide rod 222, the guide rod 222 is telescopically inserted into the mounting base 25, wherein the driving device 22 and the fixing block 221 are respectively disposed at two opposite sides of the mounting base 25, one end of the guide rod 222 is connected to the driving shaft of the driving device 22, and the other end is connected to the fixing block 221. By arranging the guide rod 222, stable guiding of the fixing block 221 can be realized, and further, the movement of the welding device can be stably guided, and the driving device 22 is connected with the fixing block 221 through the guide rod 222, so that the structure of the driving device can be simplified, and the driving device is prevented from being provided with an overlong driving shaft. Wherein the guide rod 222 may be integrally provided with the fixing block 221 or the driving shaft.

In addition, the mounting seat 25 may be a hollow structure, the upper end of the mounting seat is provided with a through hole for matching with the shaft hole of the guide rod 222 to prevent the guide block 221 from inclining, and the driving device may be fixed on the lower end surface of the mounting seat 25, so as to extend the driving shaft of the driving device into the mounting seat 25 and connect with the guide rod 222.

Referring to fig. 2 and 3, the limiting device 24 includes a main body portion 241 and a limiting block 242, the main body portion 241 is connected to the mounting seat 25, the limiting block 242 is connected to the main body portion 241 to form an "L" shape, and the fixing block 221 is limited between the limiting block 242 and the mounting seat 25. Therefore, the fixing block 221 can be stably limited by the matching of the limiting block 242 and the mounting seat 25, and the limiting of the welding device is further realized.

Optionally, the limiting device 24 may be disposed on two opposite sides of the mounting seat 25, so as to improve the stability of the limiting device 24 in limiting the welding device 21. In combination with the above, the limiting device 24 includes a main body portion 241 and a limiting block 242, the main body portion 241 is connected to the mounting seat 25 and extends along the extending and retracting direction of the welding device 21, the end portion of the main body portion 241 is connected to the limiting block 242, and the main body portion 241 and the limiting block 242 may be connected to be substantially "L" shaped. The relative both sides of mount pad 25 all are equipped with stop device 24, and the stop block 242 of the stop device of the relative both sides of mount pad 25 extends towards relative direction, and when welding set 21 stretched out extreme position, welding set 21's relative both sides were spacing by stop device 24 to improve the spacing stability of welding set 21.

In the using process, when the driving device 22 drives the welding device 21 to move to the set position, the limiting block 242 can limit the fixed block 221, so that the extending displacement of the welding device 21 can be limited by the fixed block 221, the welding device 21 can be prevented from being in direct contact with the limiting block 242, and the insulation effect between the driving device 22 and the welding device 21 is further improved. The fixing block 221 may be the same as or integrated with the insulating block.

The utility model provides a stop device 24 can be integrated on drive arrangement 22 to realize the displacement that spacing welding set 21 removed through the injecing to drive arrangement 22's drive displacement.

As shown in fig. 2, the driving device 22 of the present invention may be a hydraulic driving device. Through hydraulic drive spare, can provide comparatively accurate output pressure to realize supporting stably to pressing and the centre gripping to the work piece, and simple structure, convenient realization. Of course, the driving device 22 of the present invention may also be an electric driving device, a pneumatic driving device, etc.

The upper welding tongs 20b of the present invention can be driven manually or automatically, for example, when the pressing force required by the workpiece welding is small (for example, less than 30 kgf), the upper welding tongs can be matched with the lower welding tongs for welding in a manual mode; and when the pressing force required by the welding of the workpiece is larger, the welding can be carried out by adopting a mechanical driving mode.

As shown in fig. 2, in some embodiments of the present invention, the welding assembly 100 further comprises a robotic arm 30, the robotic arm 30 being connected to the upper welding jaw 20b for driving the upper welding jaw 20b to move. Therefore, the upper welding tongs 20b can be moved by the mechanical arm 30, the occupied space of the mechanical arm 30 at the position of the upper welding tongs 20b is small, and the problem that the arrangement of other structures in the welding assembly 100 is influenced can be avoided. The robot arm 30 may be a six-axis robot or the like.

Go up soldering turret 20b and can also include mounting panel 31, mounting panel 31 can link to each other with mount pad 25 and arm 30 respectively to will go up soldering turret 20b and install steadily on arm 30, wherein mounting panel 31 can set to the disc shape, can set up the multiunit mounting hole of arranging inside and outside on the mounting panel 31, the mounting hole of inboard is used for connecting mount pad 25, the mounting hole of outside is used for connecting arm 30.

In combination with the above, the mounting frame 10 may be disposed on the base to mount the lower electrode holder 20a, and the mounting plate 31 may be disposed on the robot arm 30 to mount the upper electrode holder 20b, so that the structures of the upper electrode holder 20b and the lower electrode holder 20a may be the same, which facilitates the modularized production and assembly, and improves the production and assembly efficiency.

In addition, the upper welding tongs 20b of the present invention can be set to a manual driving mode, and the upper welding tongs 20b can be moved manually. Wherein, a holding structure can be arranged on the upper electrode holder 20b, and the holding structure is suitable for holding to drive the upper electrode holder 20b to move. Therefore, the upper electrode holder 20b can be conveniently driven manually, and the welding efficiency and effect can be improved particularly under the condition of low welding pressure.

The holding structure may be a connecting rod or a groove suitable for holding provided on the upper electrode holder 20b.

In combination with the foregoing, the present invention provides a welding assembly 100, when the welding assembly 100 is used, the plurality of sets of lower welding tongs 20a are arranged according to the welding spot position of the product, and are integrated on the base (e.g., the clamp bottom plate 11) for practical use through the mounting seat 25. The electrode arms 211 of the upper electrode holder 20b and the lower electrode holder 20a are connected with cables through the side mounting holes, and the two cables are respectively connected with a welding machine to form a power-on circuit. The upper electrode holder 20b is mounted on the robot arm 30 through a mounting plate 31, and the first product and the second product are placed on the corresponding jigs. The upper electrode holder 20b is moved to the upper side of the first welding point by the robot arm 30 and the electrode cap 212 of the electrode holder is attached to the upper surface of the product. The lower electrode holder 20a is pushed upward by the driving device 22 to apply pressure to the lower surface of the product, and then is energized to complete the welding. The lower welding tongs 20a is driven by the driving device 22 to retreat; meanwhile, the upper welding tongs 20b moves to the upper surface of the second welding point through the mechanical arm 30, the lower welding tongs 20a corresponding to the second welding point is pushed upwards, and the welding process of the first welding point is repeated.

Compared with the related art, the welding assembly has the following advantages:

(1) in the related technology, the relative positions of the integrated soldering turret and the dynamic and static soldering turrets are fixed. Limited by the size of the electrode arm 211, poor welding compatibility; the split of the movable and static welding tongs (the upper welding tongs 20b and the lower welding tongs 20 a) of the utility model is independent and not influenced, the upper welding tongs adopts the mechanical arm 30 or manual drive, the operation is convenient, the restriction on the product size is greatly reduced, the welding assembly 100 is not restricted by the welding tongs size, the upper welding tongs 20b can adopt manual drive or robot drive, the activity space is large, and the accessibility of the product welding is good;

(2) in the related technology, the dynamic and static welding tongs are used in a one-to-one arrangement; the utility model discloses the sound soldering turret split is independent, goes up soldering turret 20b and soldering turret 20a combination down and corresponds a movable soldering turret for a plurality of fixed soldering turrets, and the no one is to the connection structure restriction of one, and is high to product solder joint position compatibility, adopts the fixed soldering turret 20a of lower and a sharing of multiunit to go up soldering turret 20b and makes up the use, reduces the restriction to equipment space.

(3) In the related art, the electrodes all rotate around a shaft, and welding spots are deviated after being worn. The utility model discloses a welding set 21 adopts linear drive, eliminates solder joint offset phenomenon, and the compensation deviation condition that rotatory leads to is avoided along electrode axis to drive arrangement 22 direction of motion.

(4) In the related technology, the welding pressure in the welding parameters is constant, so that the welding parameters are inconvenient to adjust and poor in compatibility. The utility model discloses going up downside soldering turret and all taking drive arrangement 22, can promoting the soldering turret compatibility according to adjusting welding parameter such as product overlap joint department panel beating number of piles, thickness, the drive arrangement 22 output pressure of soldering turret is adjustable, and is high to the product compatibility of different materials, thickness etc..

In the description of the present invention, it is to be understood that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are merely for convenience of description of the present invention and simplification of description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," 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 invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

Claims (10)

1. A welding assembly, comprising:

a base;

a plurality of lower welding tongs (20 a), a plurality of lower welding tongs (20 a) are arranged on the base;

an upper electrode holder (20 b), the upper electrode holder (20 b) being movable relative to the base to switchably oppose one of the plurality of lower electrode holders (20 a), and the upper electrode holder (20 b) being adapted to cooperate with the opposing lower electrode holder (20 a) to hold, release and weld a workpiece.

2. Welding assembly according to claim 1, wherein at least one of said upper electrode holder (20 b) and said lower electrode holder (20 a) comprises:

a welding device (21);

a driving device (22), wherein the driving device (22) is connected with the welding device (21) and is suitable for driving the welding device (21) to extend and retract so as to clamp and release workpieces.

3. The welding assembly of claim 2 wherein said at least one electrode holder further comprises:

an insulating device (23), the insulating device (23) being provided between the driving device (22) and the welding device (21) to insulate between the welding device (21) and the driving device (22).

4. Welding assembly according to claim 3, characterized in that said insulating means (23) comprise:

a washer (231), the washer (231) being provided on one side of the welding device (21);

the separator (232), the said separator (232) locates at another side of the said welding set (21);

a sleeve embedded in the welding device (21) and having two ends respectively opposite to the gasket (231) and the spacer (232).

5. The welding assembly of claim 2 wherein said at least one electrode holder further comprises:

a limiting device (24), said limiting device (24) being configured and adapted to limit the displacement of said welding device (21) in extension.

6. The welding assembly of claim 5 wherein said at least one electrode holder further comprises:

a mounting seat (25) is arranged on the base,

a fixed block (221), the fixed block (221) being movably connected with the mounting seat (25),

the driving device (22) is installed on the installation seat (25) and connected with the fixing block (221) to drive the fixing block (221) to move, the welding device (21) is connected with the fixing block (221), and the limiting device (24) is connected with the installation seat (25) and limits the fixing block (221).

7. The welding assembly of claim 6 wherein said at least one soldering tweezers further comprises:

a guide rod (222), the guide rod (222) is telescopically embedded into the mounting seat (25),

the driving device (22) and the fixing block (221) are respectively arranged on two opposite sides of the mounting base (25), one end of the guide rod (222) is connected with a driving shaft of the driving device (22), and the other end of the guide rod (222) is connected with the fixing block (221).

8. The welding assembly according to claim 6, characterized in that the limiting device (24) comprises a main body portion (241) and a limiting block (242), the main body portion (241) is connected with the mounting seat (25), the limiting block (242) is connected with the main body portion (241) in an L shape, and the fixing block (221) is limited between the limiting block (242) and the mounting seat (25).

9. The welding assembly of claim 2,

the welding device (21) comprises an electrode arm (211) and an electrode cap (212), wherein the electrode cap (212) is sleeved at the end part of the electrode arm (211);

the driving device (22) is a pneumatic driving part or a hydraulic driving part.

10. Welding assembly according to one of the claims 1 to 9,

the welding assembly further comprises a mechanical arm (30), and the mechanical arm (30) is connected with the upper welding tongs (20 b) to drive the upper welding tongs (20 b) to move; and/or

And a handheld structure is arranged on the upper welding tongs (20 b), and the handheld structure is suitable for driving the upper welding tongs (20 b) to move in a handheld mode.

Images