CN210360054U

CN210360054U - Welding jig

Info

Publication number: CN210360054U
Application number: CN201921364564.8U
Authority: CN
Inventors: 薛文; 王林; 周俊杰
Original assignee: Guangdong Lyric Robot Automation Co Ltd
Current assignee: Guangdong Lyric Robot Automation Co Ltd
Priority date: 2019-08-20
Filing date: 2019-08-20
Publication date: 2020-04-21
Anticipated expiration: 2029-08-20

Abstract

The application provides a welding jig relates to the welding technology field. The welding jig comprises a base, a first pressing assembly used for pressing a first workpiece, and a second pressing assembly used for pressing a second workpiece, wherein the first pressing assembly and the second pressing assembly are arranged on the base and arranged along a preset direction, each pressing assembly comprises a workpiece placing plate and a pressing arm, the workpiece placing plates are used for placing workpieces, and the pressing arms are used for placing the clamping workpieces in a matching mode with the workpiece placing plates. The welding jig can place the board and press the arm to provide a reliable centre gripping fixedly for the concatenation of work piece through the work piece that compresses tightly the subassembly.

Description

Welding jig

Technical Field

The application relates to the technical field of welding, particularly, relate to a welding jig.

Background

The welding jig is a welding fixture designed and manufactured according to the size coordinate points of the appearance of the welded part which is calibrated when a welded product is designed.

For the workpieces needing to be spliced and welded, a jig capable of ensuring fixation is needed, and the workpieces are conveniently spliced.

SUMMERY OF THE UTILITY MODEL

An object of this application is to provide a welding jig, its fixed problem when can solving the work piece and carry out the concatenation welding.

The embodiment of the application is realized as follows:

the embodiment of the application provides a welding jig, welding jig includes the base, is used for compressing tightly the first subassembly that compresses tightly of first work piece, is used for compressing tightly the second of second work piece and compresses tightly the subassembly, first compress tightly the subassembly with the second compresses tightly the subassembly setting and is in arrange on the base and along predetermineeing the direction, and every compresses tightly the subassembly and includes that the work piece places the board and press the arm, the work piece is placed the board and is used for placing the work piece, press the arm be used for with the work piece is placed board cooperation centre gripping work piece.

The welding jig can place the board and press the arm to provide a reliable centre gripping fixedly for the concatenation of work piece through the work piece that compresses tightly the subassembly.

In addition, the welding jig provided according to the embodiment of the application may further have the following additional technical features:

in an alternative embodiment of the present application, the pressing arm is rotatably connected to the workpiece placing plate about a first axis.

So can make pressure arm and work piece place the board and have direct connection, need not in addition to take the pressure arm to install the use during the use again, use more portably.

In an alternative embodiment of the present application, the pressing assembly further comprises a locking mechanism for releasably locking the pressing arm to the workpiece placing plate.

Through using locking mechanism, can make things convenient for the pressure arm to lock the work piece on the board is placed to the work piece to it is also convenient to take out the work piece.

In an optional embodiment of the present application, the locking mechanism includes a locking screw and a locking nut, one end of the locking screw is screwed with the workpiece placing plate, and the other end of the locking screw penetrates through the pressing arm and is locked on the pressing arm by the locking nut.

By adopting the matching of the locking screw rod and the locking nut, when the thicknesses of the workpieces are different, the locking nut can be adjusted to adapt to the workpieces with different thicknesses, and the locking is guaranteed.

In an alternative embodiment of the present application, a middle portion of the pressing arm is rotatably connected to the workpiece placing plate around the first axis, an elastic member is disposed between one end of the pressing arm and the workpiece placing plate, and the other end of the pressing arm is used for pressing the workpiece.

Through the design elastic component, can provide the pretightning force for pressing the arm, conveniently carry out the pretension to the work piece earlier before locking the work piece, guarantee that the position of placing of work piece meets the requirements.

In an optional embodiment of the present application, the pressing assembly further includes an adjusting post and a pressing handle, the adjusting post is disposed through the pressing arm, one end of the adjusting post is fixed to the workpiece placing plate, the pressing handle is mounted at the other end of the adjusting post, the pressing arm has a first position for pressing the first workpiece and a second position for releasing the first workpiece, and the pressing handle is configured to drive the pressing arm to overcome the acting force of the elastic member to rotate from the first position to the second position.

When a workpiece is placed or taken out, the pressing arm can be pulled by pulling the pressing handle, and then the operation is carried out without pulling the pressing arm by one hand and operating by one hand. So that the workpiece can be taken and placed more conveniently.

In an alternative embodiment of the present application, the other end of the pressing arm is mounted with a pressing block.

The briquetting can agree with the work piece more, need not to press the arm and has crossed lowly.

In an alternative embodiment of the present application, the pressing block includes a first pressing block made of an elastic material and having a pressing face, and a second pressing block having a pressing edge that is farther from the first axis than the pressing face.

Compress tightly the surface of work piece through first briquetting, compress tightly the position that is close to the welding of work piece through the second briquetting, can both ensure the work piece and compressed tightly, can avoid needing welded position to take place the perk again, avoid influencing the welding.

In an alternative embodiment of the present application, the pressing assembly further includes a base plate, the workpiece placing plate is located between the base plate and the pressing arm, and one end of the workpiece placing plate is rotatably connected to the base plate around a second axis that is parallel to the first axis and perpendicular to the predetermined direction.

By designing the workpiece placing plate to be rotatable with respect to the base plate, a foundation can be provided for the oblique welding.

In an optional embodiment of the present application, the pressing assembly further includes an angle adjusting mechanism for adjusting an included angle between the workpiece placing plate and the bottom plate.

By using the angle adjusting mechanism, the angle of the workpiece can be adjusted according to the angle requirement of the oblique welding.

In the optional embodiment of this application, angle adjustment mechanism includes regulating block, adjusting screw, first adjusting nut and second adjusting nut, the regulating block rotationally connect in the board is placed to the work piece, be provided with the spout on the bottom plate, the spout along with the second axis vertically direction extends, adjusting screw wears to locate the spout and lock in through first adjusting nut and second adjusting nut in the bottom plate, adjusting screw's one end with the regulating block links to each other.

Through the cooperation of regulating block, adjusting screw, first adjusting nut and second adjusting nut, can make the angular adjustment of work piece normally implement, need not to dispose the used tool of oblique welding specially.

In an optional embodiment of the application, the pressing assembly further includes a stopper and a fixing member, a guide groove is provided on the workpiece placing plate, the direction of the guide groove is the same as the preset direction, the stopper is in sliding fit with the guide groove and can be locked by the fixing member, and the stopper is used for stopping the workpiece.

The workpiece is adjusted by the stop block and the fixing piece, so that clamping and fixing requirements of workpieces with different lengths are met, the workpieces can be normally held on the workpiece placing plate, and the welding and fixing requirements of the workpieces with different models are met.

In an optional embodiment of the application, the welding jig further includes a position adjusting mechanism, and the position adjusting mechanism is configured to adjust a position of the first pressing component along the preset direction, so that the first pressing component is close to or away from the second pressing component.

The relative positions of the first pressing assembly and the second pressing assembly are adjusted through the position adjusting mechanism, so that the first workpiece and the second workpiece can be normally clamped and drawn together to facilitate welding after the sizes and the shapes of the first workpiece and the second workpiece are changed.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.

Fig. 1 is a schematic view of a welding jig according to an embodiment of the present disclosure;

FIG. 2 is a schematic view of FIG. 1 with the first and second clamping assemblies hidden;

FIG. 3 is a schematic illustration of the mating of the first compression assembly and the second compression assembly of FIG. 1;

FIG. 4 is a top view of FIG. 3;

FIG. 5 is a schematic view of the decompression arm of FIG. 1 shown in hidden position;

FIG. 6 is a schematic view of another perspective of FIG. 5;

fig. 7 is a schematic view of the welding jig shown in fig. 1 after being assembled with the blowing device and the air extracting device.

Icon: 100-welding a jig; 10-a base; 20-a first hold-down assembly; 21-a bottom plate; 212-a chute; 23-a workpiece placing plate; 232-a guide groove; 25-a press arm; 27-an angle adjustment mechanism; 272-a regulating block; 274-adjusting screw; 276-a first adjusting nut; 278-a second adjusting nut; 280-a locking block; 29-a second shaft; 31-a first shaft block; 33-a locking mechanism; 332-locking screw rod; 334-a locking nut; 35-a second spindle block; 37-a first shaft; 39-an elastic member; 41-briquetting; 412-a first compact; 414-second compact; 45-adjusting the column; 47-pressing the handle; 49-a stop block; 51-a fixture; 60-a second hold-down assembly; 70-a position adjustment mechanism; 71-a track; 73-a slide; 75-a screw rod; 80-a baffle plate; 200-a blowing device; 300-an air extraction device; 1001-first workpiece; 1002-a second workpiece; 1003-preset direction; 1004 — dust removal gap.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present application, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the product conventionally places when used, and are only used for convenience of description and simplification of description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

In the description of the present application, it is also to be noted that, unless otherwise explicitly specified or limited, the terms "disposed" and "connected" are to be interpreted broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

Examples

Referring to fig. 1 to 7, the present embodiment provides a welding jig 100, where the welding jig 100 includes a base 10, a first pressing component 20 for pressing a first workpiece 1001, and a second pressing component 60 for pressing a second workpiece 1002, where the first pressing component 20 and the second pressing component 60 are disposed on the base 10 and arranged along a preset direction 1003, each pressing component includes a workpiece placing plate 23 and a pressing arm 25, the workpiece placing plate 23 is used for placing a workpiece, and the pressing arm 25 is used for cooperating with the workpiece placing plate 23 to clamp the workpiece.

The first workpiece 1001 and the second workpiece 1002 are workpieces to be welded together, and the sizes and shapes of the workpieces may be varied, for example, the workpieces may be rectangular as shown in the drawing of the present embodiment, polygonal workpieces with other shapes or irregular workpieces, and the material of the workpieces may also be common workpieces in laser welding such as lithium sheets and steel sheets. In addition, the first workpiece 1001 and the second workpiece 1002 are not limited to the stitch welding of two workpieces, and the workpiece fixed to the first pressing member 20 may be generally referred to as the first workpiece 1001 and the workpiece fixed to the second pressing member 60 as the second workpiece 1002.

Referring to fig. 2, in particular, in the present embodiment, the welding jig 100 further includes a position adjusting mechanism 70, and the position adjusting mechanism 70 is configured to adjust a position of the first pressing assembly 20 along a preset direction 1003, so that the first pressing assembly 20 is close to or away from the second pressing assembly 60. The position adjusting mechanism 70 includes a rail 71, a slider 73 and a screw 75, the rail 71 is fixed to the base 10 and extends along the preset direction 1003, the slider 73 is slidably fitted to the rail 71, the screw 75 is threadedly fitted to the slider 73, the first pressing assembly 20 is mounted on the slider 73, and the second pressing assembly 60 is mounted on the base 10. Specifically, the base plate 21 (set forth below) of the hold-down assembly is mounted on the slide 73. In the present embodiment, the first pressing assembly 20 and the second pressing assembly 60 are identical in structure.

The relative positions of the first pressing assembly 20 and the second pressing assembly 60 are adjusted by the position adjusting mechanism 70, so that the first workpiece 1001 and the second workpiece 1002 can be normally clamped and drawn together for welding after being changed in size and shape. Therefore, the whole jig does not need to be replaced when the workpiece is replaced, unnecessary operation is reduced, the welding jig 100 does not need to be manufactured into jigs matched with various models like the common technology when in use, and the total cost is correspondingly reduced.

Besides, in addition to the solution shown in the present embodiment that the first pressing assembly 20 is mounted on the position adjusting mechanism 70 and the second pressing assembly 60 is mounted on the base 10, in other embodiments, the first pressing assembly 20 and the second pressing assembly 60 may be mounted on one position adjusting mechanism 70 respectively, so that the approaching and the departing of the first pressing assembly 20 and the second pressing assembly 60 can be adjusted respectively. In other embodiments, the first pressing assembly 20 and the second pressing assembly 60 may be disposed on the same position adjusting mechanism 70. Specifically, the position adjusting mechanism 70 at this time has two sliding blocks 73 installed on the same screw rod 75, the screw rod 75 is divided into a first section and a second section, the thread directions of the two sections are opposite, the two sliding blocks 73 are respectively arranged on the first section and the second section, the first pressing component 20 is matched with one of the sliding blocks 73, the second pressing component 60 is matched with the other sliding block 73, and when the screw rod 75 is rotated, the first pressing component 20 and the second pressing component 60 can move in the same time in the opposite direction or in the opposite direction.

Referring to fig. 3 and 4, in particular, in the present embodiment, the pressing assembly further includes a bottom plate 21, the workpiece placing plate 23 is located between the bottom plate 21 and the pressing arm 25, one end of the workpiece placing plate 23 is rotatably connected to the bottom plate 21 around a second axis, the second axis is parallel to the first axis, and the second axis is perpendicular to the preset direction 1003. The base plate 21 is connected to a position adjustment mechanism 70.

The pressing assembly further comprises an angle adjusting mechanism 27, and the angle adjusting mechanism 27 is used for adjusting the included angle between the workpiece placing plate 23 and the bottom plate 21. In the present embodiment, the rotatable connection of the workpiece placement plate 23 with respect to the base plate 21 is realized in such a manner that the second rotary shaft 29 engages with the first rotary shaft block 31. The first rotary shaft block 31 is provided to the bottom plate 21, the second rotary shaft 29 is connected to the workpiece placing plate 23, and the second rotary shaft 29 is rotatably connected to the first rotary shaft block 31. In the present embodiment, the second axis is a rotation axis of the second rotation shaft 29.

More specifically, the angle adjusting mechanism 27 includes an adjusting block 272, an adjusting screw 274, a first adjusting nut 276 and a second adjusting nut 278, the adjusting block 272 is rotatably connected to the workpiece placing plate 23, the bottom plate 21 is provided with a sliding groove 212, the sliding groove 212 extends in a direction perpendicular to the second axis, the adjusting screw 274 is inserted into the sliding groove 212 and is locked to the bottom plate 21 by the first adjusting nut 276 and the second adjusting nut 278, and one end of the adjusting screw 274 is connected to the adjusting block 272. In the present embodiment, a locking block 280 is fixed on the workpiece placing plate 23, and the adjusting block 272 is rotatably connected to the locking block 280.

When the angle of the workpiece placing plate 23 relative to the bottom plate 21 needs to be adjusted, the second adjusting nut 278 is firstly loosened, in this embodiment, two angle adjusting mechanisms 27 are adopted to obtain better stability, and then both the two angle adjusting mechanisms 27 need to firstly loosen the second adjusting nut 278, and after the workpiece placing plate 23 is pulled upwards to a required position, the first adjusting nut 276 is screwed, so that the position of the adjusting screw 274 relative to the bottom plate 21 is fixed. Due to the rotation of the adjusting block 272, the adjusting screw 274 can be maintained in a vertical state in cooperation with the presence of the slide groove 212, thereby ensuring that the first adjusting nut 276 and the second adjusting nut 278 can stably lock the adjusting screw 274 to the bottom plate 21 after the angle of the workpiece placement plate 23 with respect to the bottom plate 21 is adjusted. Through the contained angle between the adjustment work piece placing plate 23 and the bottom plate 21, the welding jig 100 of the application can also meet the oblique welding requirements of the first work piece 1001 and the second work piece 1002, can save the jig used for the oblique welding of special configuration, does not need to be replaced, and saves the jig cost.

More specifically, the pressing arm 25 is rotatably connected to the workpiece placing plate 23 about the first axis.

The pressing assembly further includes a locking mechanism 33, and the locking mechanism 33 is used for releasably locking the pressing arm 25 to the workpiece placing plate 23. In the present embodiment, the workpiece placing plate 23 is provided with a second rotating shaft block 35, the first rotating shaft 37 is fixed on the pressing arm 25, and the first rotating shaft 37 is rotatably connected to the second rotating shaft block 35, so as to realize the rotation of the pressing arm 25 relative to the workpiece placing plate 23, and the first axis of the present embodiment is a rotating axis of the first rotating shaft 37.

As for the lock mechanism 33, in detail, the lock mechanism 33 includes a lock screw 332 and a lock nut 334, one end of the lock screw 332 is screwed with the workpiece placing plate 23, and the other end thereof is inserted through the pressing arm 25 and locked to the pressing arm 25 by the lock nut 334. In this embodiment, there are two locking mechanisms 33 of each pressing assembly, the two locking mechanisms 33 are arranged at intervals along a direction parallel to the first axis, and the pressing block 41 is located between the two locking mechanisms 33.

Further, the present embodiment is such that the middle portion of the pressing arm 25 is rotatably connected to the workpiece placing plate 23 about the first axis. Further, an elastic member 39 is provided between one end of the pressing arm 25 and the workpiece placing plate 23, and the other end of the pressing arm 25 is used to press the workpiece. In the present embodiment, the other end of the pressing arm 25 is provided with a pressing piece 41. The elastic member 39 is used to urge the pressing arm 25 so that the pressing piece 41 can press the first workpiece 1001 on the workpiece placement plate 23. The first pressing component 20 further includes a guiding post (not shown), one end of the guiding post is fixed on the bottom plate 21, the other end of the guiding post penetrates through the pressing arm 25, and the elastic element 39 (a spring is adopted in this embodiment) is sleeved on the guiding post. When the spring-fit guide post is not used, an elastic member such as an elastic sheet capable of providing a linear restoring force may be used to provide the pressing force to the pressing piece 41. By pressing the pressing block 41, the first workpiece 1001 can be pre-tightened and positioned, and the first workpiece 1001 is prevented from being shifted due to the locking process of the locking mechanism 33. This can reduce the trouble of repeatedly positioning the first workpiece 1001 to some extent. The middle of the pressing arm 25 refers to a position where the pressing arm 25 is rotatably connected to the workpiece placing plate 23, and is a position between the elastic member 39 and the pressing piece 41 with respect to a position where the elastic member 39 and the pressing piece 41 are located, and does not refer to an absolute middle position in the size of the pressing arm 25.

The elastic member 39 is pre-tightened by the pressing piece 41, and the first workpiece 1001 is stably fixed to the workpiece placement plate 23 by the locking mechanism 33.

More specifically, both ends of the locking screw 332 have screw thread sections, the workpiece placing plate 23 is provided with a matching screw hole, the locking screw 332 penetrates through the pressing arm 25, one end of the locking screw abuts against the pressing arm 25 through the locking nut 334, and the other end of the locking screw is in threaded connection with the screw hole, so that the position of the pressing arm 25 relative to the workpiece placing plate 23 is kept fixed, and the first workpiece 1001 is kept stable. In unlocking, the locking screw 332 is screwed so that the locking screw 332 is separated from the screw hole, that is, the pressing arm 25 can be moved relative to the workpiece placing plate 23. If the thickness dimension of the first workpiece 1001 is increased or decreased, the lock nut 334 may be adjusted, for example, if the lock nut 334 is screwed upward in the view of fig. 3, the distance between the pressing block 41 and the workpiece placement plate 23 may be increased to accommodate the first workpiece 1001 having a larger thickness dimension, whereas if the lock nut 334 is screwed downward further, the pressing block 41 may be brought closer to the workpiece placement plate 23 to fit the thinner first workpiece 1001.

Alternatively, the locking screw may be fixed to the workpiece placing plate 23, the pressing arm 25 may be provided with a hole having a size that allows the locking screw to pass through when the pressing arm 25 moves, so that there is no interference between the locking screw and the pressing arm 25, and then the locking nut may be screwed to lock the pressing arm 25 and the workpiece placing plate 23. Alternatively, since the movement of the pressing arm 25 is a rotation, there is a certain arc of movement, and the locking screw may be designed to have a certain curvature, so that the locking screw can pass through the hole without interfering with the pressing arm 25 when the pressing arm 25 moves.

With respect to the pressing block 41, in detail, the pressing block 41 includes a first pressing block 412 and a second pressing block 414, the first pressing block 412 is made of an elastic material, the first pressing block 412 has a pressing face, and the second pressing block 414 has a pressing edge, and the pressing edge is farther from the first axis than the pressing face. In the present embodiment, the pressing arm 25 is first connected to the second pressing block 414 and then connected to the first pressing block 412 through bolts. Since the first pressing block 412 is made of an elastic material and is not in hard contact with the first workpiece 1001, the first workpiece 1001 which is not flat can be pressed, and the pressing edge of the second pressing block 414 is pressed at a position close to the welding of the first workpiece 1001, so that the welding effect can be prevented from being influenced by the tilting of the first workpiece 1001.

In this embodiment, the pressing assembly further includes an adjusting column 45 and a pressing handle 47, the adjusting column 45 is disposed through the pressing arm 25, one end of the adjusting column 45 is fixed to the workpiece placing plate 23, the pressing handle 47 is mounted at the other end of the adjusting column 45, the pressing arm 25 has a first position for pressing the first workpiece 1001 and a second position for releasing the first workpiece 1001, and the pressing handle 47 is used for driving the pressing arm 25 to rotate from the first position to the second position against the acting force of the elastic member 39. Therefore, when the first workpiece 1001 needs to be placed, the pressing handle 47 is pulled first, so that the pressing arm 25 is abutted by the pressing handle 47 and compresses the elastic element 39, and the pressing arm 25 tilts, so that the first workpiece 1001 is placed on the workpiece placing plate 23. And facilitates fine adjustment of the position of the first workpiece 1001 using the stop 49 described below.

Specifically, please refer to fig. 5, the pressing assembly further includes a stopper 49 and a fixing member 51, the workpiece placing plate 23 is provided with a guide slot 232, the direction of the guide slot 232 is the same as the preset direction 1003, the stopper 49 is slidably fitted in the guide slot 232 and can be locked by the fixing member 51, and the stopper 49 is used for stopping the workpiece. The fixing member 51 of this embodiment is a screw, and the stopper 49 can be fixed or movable by screwing or unscrewing.

In practical use, when the first workpiece 1001 and the second workpiece 1002 are placed, the first pressing assembly 20 and the second pressing assembly 60 are first brought into close proximity by rotating the screw 75 if the first workpiece 1001 and the second workpiece 1002 have not yet reached the abutting position. Further, the position of the stopper 49 may be adjusted so that the first and

second workpieces

1001, 1002 can move in length and to abut against each other. Thereby satisfying the clamping and fixing requirements of workpieces with different lengths. The work placing plate 23 of the present application reserves a sufficient space in the width direction, so that the first work 1001 and the second work 1002 can be compatible in the width direction. In addition, the distance between the pressing block 41 and the workpiece placing plate 23 can be adjusted, and the first workpiece 1001 and the second workpiece 1002 can be compatible with each other in the thickness direction. Wherein, if the stop block 49 is not used, the lead screw 75 with higher precision can be considered to meet the adjustment requirement. The scheme of the stop block 49 adopted by the embodiment can reduce the requirement on the screw rod 75, and can also provide certain limit support when a workpiece is placed before oblique welding.

Thus, the welding jig 100 of the present application can achieve compression of workpieces of different sizes and shapes, and is adapted to welding requirements of workpieces of various models.

Further, when the first workpiece 1001 is spliced with the second workpiece 1002, a dust removing gap 1004 is formed between the workpiece placing plate 23 of the first pressing assembly 20 and the workpiece placing plate 23 of the second pressing assembly 60. This is beneficial for gas circulation and dust removal.

On the basis of the design of the dust removing gap 1004, please refer to fig. 3 and fig. 6, the welding jig 100 further includes a baffle 80, the baffle 80 is disposed on the bottom plate 21 of the first pressing component 20 or the bottom plate 21 of the second pressing component 60 (the bottom plate 21 of the first pressing component 20 in this embodiment), and the baffle 80 is located below the dust removing gap 1004. The baffle 80 is located between the position adjustment mechanism 70 and the dust removal gap 1004. The baffle 80 can prevent the welding slag from falling onto other parts such as the position adjusting mechanism 70, and the welding slag is prevented from influencing the normal operation of the welding jig 100. In addition, laser damage to other devices during laser welding can be prevented.

Referring to fig. 7, the blowing device 200 and the air extractor 300 may be disposed on the welding jig 100, and the blowing device 200 and the air extractor 300 may be mounted on the base 10 as shown in fig. 7, or may be separately mounted on two sides of the welding jig 100. The gas blowing device 200 and the gas suction device 300 face the welding position, and the gas blowing device 200 can perform gas blowing protection on the welding workpiece, such as blowing protection gas like nitrogen. The air extractor 300 extracts air from the dust generated by welding and discharges the extracted air, and the dust can be removed more easily in cooperation with the dust removing gap 1004. The specific structures and functions of the blowing device 200 and the air extractor 300 can refer to a blowing protection device and a dust suction device used in common laser welding, and are not described in detail herein.

To sum up, the welding jig 100 of the present application can provide a reliable clamping for the splice welding of the workpiece through the workpiece placing plate 23 and the pressing arm 25 of the pressing assembly.

In addition, through carrying out position control to the welding work piece in length direction, carry out the compatibility at width direction, thickness direction to the corresponding size of welding work piece to can adapt to the welding of the welding work piece of multiple model and compress tightly the requirement, when the work piece remodelling, need not to change whole tool, convenient operation. And because generally do not need to dispose multiple tool for the welding work piece of multiple model, holistic cost is also lower.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. The utility model provides a welding jig, its characterized in that, welding jig includes the base, is used for compressing tightly the first subassembly that compresses tightly of first work piece, is used for compressing tightly the second of second work piece and compresses tightly the subassembly, first compress tightly the subassembly with the second compresses tightly the subassembly setting and is in just arrange along preset direction on the base, and every compresses tightly the subassembly and includes that the work piece places board and pressure arm, the work piece is placed the board and is used for placing the work piece, pressure arm be used for with the work piece is placed board cooperation centre gripping work piece.

2. The welding jig of claim 1, wherein the press arm is rotatably connected to the workpiece placement plate about a first axis.

3. The welding jig of claim 2, wherein the hold down assembly further comprises a locking mechanism for releasably locking the press arm to the workpiece rest plate.

4. The welding jig of claim 3, wherein the locking mechanism comprises a locking screw and a locking nut, one end of the locking screw is in threaded connection with the workpiece placing plate, and the other end of the locking screw penetrates through the pressure arm and is locked on the pressure arm by the locking nut.

5. The welding jig of claim 3, wherein the middle portion of the pressing arm is rotatably connected to the workpiece placing plate around the first axis, an elastic member is disposed between one end of the pressing arm and the workpiece placing plate, and the other end of the pressing arm is used for pressing the workpiece.

6. The welding jig of claim 5, wherein the pressing assembly further comprises an adjusting post and a pressing handle, the adjusting post is arranged through the pressing arm, one end of the adjusting post is fixed to the workpiece placing plate, the pressing handle is mounted at the other end of the adjusting post, the pressing arm has a first position for pressing the first workpiece and a second position for releasing the first workpiece, and the pressing handle is used for driving the pressing arm to overcome the acting force of the elastic member so as to rotate from the first position to the second position.

7. The welding jig of claim 5, wherein the other end of the press arm is mounted with a press block.

8. The welding jig of claim 7, wherein the press block comprises a first press block and a second press block, the first press block being made of an elastic material, the first press block having a press face, the second press block having a press edge, the press edge being further from the first axis than the press face.

9. The welding jig of claim 2, wherein the compression assembly further comprises a base plate, the workpiece placement plate is located between the base plate and the compression arm, one end of the workpiece placement plate is rotatably connected to the base plate about a second axis, the second axis is parallel to the first axis, and the second axis is perpendicular to the predetermined direction.

10. The welding jig of claim 9, wherein the pressing assembly further comprises an angle adjustment mechanism for adjusting an included angle between the workpiece placing plate and the base plate.

11. The welding jig of claim 10, wherein the angle adjustment mechanism comprises an adjustment block, an adjustment screw, a first adjustment nut, and a second adjustment nut, the adjustment block is rotatably connected to the workpiece placement plate, the bottom plate is provided with a sliding groove, the sliding groove extends in a direction perpendicular to the second axis, the adjustment screw is inserted into the sliding groove and is locked to the bottom plate through the first adjustment nut and the second adjustment nut, and one end of the adjustment screw is connected to the adjustment block.

12. The welding jig of claim 1, wherein the pressing assembly further comprises a stopper and a fixing member, a guide groove is formed in the workpiece placing plate, the direction of the guide groove is the same as the preset direction, the stopper is slidably fitted in the guide groove and can be locked by the fixing member, and the stopper is used for stopping the workpiece.

13. The welding jig of claim 1, further comprising a position adjustment mechanism for adjusting a position of the first pressing assembly along the preset direction to cause the first pressing assembly to approach or depart from the second pressing assembly.