CN210549070U

CN210549070U - Fillet welding equipment

Info

Publication number: CN210549070U
Application number: CN201920818884.XU
Authority: CN
Inventors: 沈根法; 夏忠良; 王伟东; 朱庆川; 杨永金; 沈松月
Original assignee: Zhejiang Tengyun Refrigeration Technology Co Ltd
Current assignee: Zhejiang Tengyun Refrigeration Technology Co Ltd
Priority date: 2019-05-31
Filing date: 2019-05-31
Publication date: 2020-05-19
Anticipated expiration: 2029-05-31

Abstract

The utility model discloses fillet welding equipment, which comprises an underframe, a sliding assembly, a control part and a welding assembly; the control part is used for controlling the welding assembly to move according to a set track; the sliding assembly comprises a bottom plate fixed on the upper part of the bottom frame and a sliding block capable of sliding on the bottom plate; the welding assembly comprises a rotating motor, a welding gun and a base fixed on the sliding block; the rotating motor is fixed on the fifth fixing block, and the welding gun is connected with the rotating motor in a matching manner; welder and the rotating electrical machines cooperation among this technical scheme can make welder accomplish circular motion, and the rotating electrical machines is fixed on the base, and the base can accomplish the removal of four directions from top to bottom around, and the base is fixed on the slider, and the slider can accomplish the removal of two directions about on the slide, and welder just can accomplish the removal and the circular motion of six directions from top to bottom all around according to the demand like this to make welder can accomplish the removal of setting for the orbit according to the setting of control part.

Description

Fillet welding equipment

Technical Field

The invention relates to the technical field of welding, in particular to fillet welding equipment.

Background

In the production of metal products such as stainless steel water tanks, the arc-shaped splicing surfaces are often welded, at present, two blocks to be welded are spliced and fixed manually, and then the splicing surfaces are welded by using a welding gun, and the welding mode mainly has the following problems: 1. at least one person is needed to be responsible for fixing, and the other person is responsible for welding, so that the labor is wasted; 2. the welding seams of manual welding are irregular; 3. there is a certain potential safety hazard. Therefore, the main problem to be solved at present is to design a welding machine which can fix a to-be-welded part and can stably move along a welding seam.

Therefore, chinese patent publication No. CN203973098U, applied at 03/12/2014, relates to a multi-specification fillet welding machine, which includes a bottom plate, a clamping portion, a welding portion, and an electric control portion for controlling the clamping portion and the welding portion to perform coordinated actions, wherein the clamping portion includes a lower support mounted on the bottom plate, and a pressing plate capable of pressing a to-be-welded member against the lower support; the welding part comprises a welding gun and a driving mechanism. According to the invention, the pressure plate is utilized to tightly press the to-be-welded piece on the lower support, and the driving mechanism drives the welding gun to stably move and weld along the splicing seam, so that the welding efficiency is high, the labor cost is saved, the welding seam is neat, the welding effect is good, and the potential safety hazard in the manual welding process is eliminated.

However, in the long-term use, the fillet welding machine disclosed in the above document is found to weld only fillets of various specific specifications, and cannot weld fillets according to various requirements, and secondly, the fillet welding machine disclosed in the above document presses the to-be-welded part on the lower support only through the pressure plate, so that the degrees of freedom of the to-be-welded part in two directions are only restricted, and the stability during welding is questionable.

Disclosure of Invention

The invention aims to solve the problems and provides fillet welding equipment which can restrain six degrees of freedom of a workpiece to be welded in six directions, ensure the stability in the welding process and weld fillets of different specifications according to various requirements.

In order to achieve the purpose, the invention adopts the following technical scheme:

a fillet welding device comprises a base frame, a sliding assembly and a control part which are arranged on the base frame, and a welding assembly which is arranged on the sliding assembly; the control part is used for controlling the welding assembly to move according to a set track;

the sliding assembly comprises a bottom plate fixed on the upper part of the bottom frame and a sliding block capable of sliding on the bottom plate;

the welding assembly comprises a rotating motor, a welding gun and a base fixed on the sliding block;

the base comprises a first fixed block fixed on the sliding block, a second fixed block capable of sliding on the first fixed block, a third fixed block fixedly connected with or integrally formed with the first fixed block, a first bolt matched with the third fixed block in a threaded manner and capable of driving the second fixed block to slide on the first fixed block, a fourth fixed block fixedly connected with or integrally formed with the second fixed block, a fifth fixed block capable of sliding on the fourth fixed block, a sixth fixed block fixedly connected with or integrally formed with the fourth fixed block, and a second bolt matched with the sixth fixed block in a threaded manner and capable of driving the fifth fixed block to slide on the fourth fixed block;

the rotating motor is fixed on the fifth fixing block, and the welding gun is connected with the rotating motor in a matched mode.

Preferably, the first fixing block and the fourth fixing block are provided with dovetail grooves, the second fixing block is provided with a first protruding part matched with the dovetail groove on the first fixing block, so that the second fixing block can only slide on the first fixing block, and the fifth fixing block is provided with a second protruding part matched with the dovetail groove on the fourth fixing block, so that the fifth fixing block can only slide on the fourth fixing block.

Preferably, a first mounting hole is formed in the first side face of the second fixing block, a first pin hole is formed in the second side face connected with the first side face, a pin opposite to the first pin hole is arranged in the first pin hole, the first pin hole is intersected with the edge area of the first mounting hole, a first bolt is in threaded fit with the third fixing block and is mounted in the first mounting hole, and the second fixing block can be driven to slide on the first fixing block through rotation of the first bolt.

Preferably, a second mounting hole is formed in the first side face of the fifth fixing block, a second pin hole is formed in the second side face connected with the first side face, a pin opposite to the second pin hole is arranged in the second pin hole, the second pin hole is intersected with the edge area of the second mounting hole, a second bolt is in threaded fit with the sixth fixing block and is mounted in the second mounting hole, and the fifth fixing block can be driven to slide on the fourth fixing block through rotation of the second bolt.

Preferably, a first buffer block is arranged between the first fixing block and the second fixing block, and the first buffer block is mounted on the side wall of the dovetail groove of the first fixing block through an adjusting screw.

Preferably, a second buffer block is arranged between the fourth fixing block and the fifth fixing block, and the second buffer block is mounted on the side wall of the dovetail groove of the fourth fixing block through an adjusting screw.

Preferably, a first positioning block and a second positioning block are respectively arranged at two ends of the bottom plate, the sliding block slides between the first positioning block and the second positioning block, and when the sliding block is tightly attached to the first positioning block or the second positioning block, the center shaft of the rotating motor can be coaxial with the circle center of the welding fillet by adjusting the first bolt or the second bolt.

Preferably, the bottom of the underframe is a parallelogram-shaped first frame, an inner frame is arranged inside the first frame, a vertical second frame and a vertical third frame are arranged on the frame of the first frame, a vertical fourth frame and a vertical fifth frame are arranged on the inner frame, the second frame, the fourth frame, the fifth frame and the third frame are sequentially arranged and parallel, a third buffer block is arranged between the second frame and the fourth frame, and a fourth buffer block is arranged between the fifth frame and the third frame.

Preferably, the second frame and the third frame are respectively provided with a clamping assembly, and the clamping assemblies are used for pressing the to-be-welded part on the fourth frame and the fifth frame.

Preferably, the clamping assembly comprises a quick clamp fixed on the second frame or the third frame and a pressing piece positioned on the quick clamp, and the quick clamp comprises a handle, a first connecting frame, a second connecting frame, a connecting rod and a seventh fixing block; the seventh fixed block is fixedly connected with the second frame or the third frame through a threaded part; one end of the first connecting frame is hinged with the seventh fixing block, and the other end of the first connecting frame is fixedly connected with the handle; one end of the second connecting frame penetrates through the first connecting frame and then is hinged with the seventh fixed block and is fixedly connected with the pressing piece, one end of the connecting rod is hinged with the first connecting frame, and the other end of the connecting rod is hinged with the second connecting frame.

The invention has the beneficial effects that:

1) the fillet welding equipment controls the welding assembly to move according to a set track through the control part, so that the fillet welding equipment can weld fillets of various specifications according to requirements;

2) the welding gun is matched with the rotating motor, so that the welding gun can complete circular motion, the rotating motor is fixed on the base, the base can complete the movement in four directions, namely front, back, up and down, the base is fixed on the sliding block, and the sliding block can complete the movement in two directions, namely left and right, on the sliding plate, so that the welding gun can complete the movement in six directions, namely front, back, left, right, up and down, and the circular motion according to the requirement, and the welding gun can complete the movement of a set track according to the setting of the control part.

3) The part to be welded is fixed on the underframe through clamping, the freedom degrees in the upper direction and the lower direction of the part to be welded are restrained under the action of the gravity of the part to be welded, the freedom degrees in the left direction and the right direction of the part to be welded are restrained through the second frame, the fourth frame, the fifth frame, the third buffer block and the fourth buffer block, the part to be welded is tightly pressed on the fourth frame and the fifth frame through the clamping assembly, the freedom degrees in the front direction and the rear direction of the part to be welded are restrained, and therefore the restraint of the freedom degrees in the six directions of the part to be welded is completed, and the welding process is very stable.

Drawings

FIG. 1 is a schematic view of the fillet welding apparatus of the present invention;

FIG. 2 is a schematic structural view of a base of the fillet welding equipment of the present invention;

FIG. 3 is a schematic structural view of a second fixing block of the fillet welding device of the present invention;

FIG. 4 is a schematic structural view of a fifth fixing block of the fillet welding device of the present invention;

FIG. 5 is a schematic structural view of a chassis of the fillet welding device of the present invention;

FIG. 6 is a schematic structural view of a clamping assembly of the fillet welding equipment of the invention;

FIG. 7 is a schematic view of the fillet welding apparatus of the present invention (two flat plates);

figure 8 is a schematic view of the fillet welding device of the invention (three flat plates) during the welding process.

Description of reference numerals: 1. a chassis; 2. a sliding assembly; 3. welding the assembly; 21. a base plate; 22. a slider; 31. a rotating electric machine; 32. a welding gun; 33. a base; 330. a first fixed block; 331. a second fixed block; 332. a third fixed block; 334. a fourth fixed block; 335. a fifth fixed block; 336. a sixth fixed block; 337. a second bolt; 338. a first buffer block; 3311. a first mounting hole; 3312. a first pin hole; 3351. a second mounting hole; 3352. a second pin hole; 23. a first positioning block; 24. a second positioning block; 25. a slide bar; 11. a first frame; 12. a second frame; 13. a third frame; 14. a fourth frame; 15. a fifth frame; 16. reinforcing ribs; 17. a third buffer block; 18. a fourth buffer block; 4. a clamping assembly; 41. a compression member; 42. a handle; 43. a first connecting frame; 44. a second link frame; 45. a connecting rod; 46. and a seventh fixed block.

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 or similar 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 illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be considered 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 one or more of that feature. In the description of the present invention, unless otherwise specified, "a plurality" means two or more unless explicitly defined otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be 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 meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

A fillet welding apparatus as shown in fig. 1, comprising a base frame 1, a sliding assembly 2 and a control part mounted on the base frame 1, and a welding assembly 3 mounted on the sliding assembly 2; the control part is used for controlling the welding assembly 3 to move according to a set track;

the sliding assembly 2 comprises a bottom plate 21 fixed on the upper part of the chassis 1 and a sliding block 22 capable of sliding on the bottom plate 21; in the present embodiment, the plane of the bottom plate 21 is taken as a horizontal plane, and the slider 22 slides left and right on the bottom plate 21;

the welding assembly 3 comprises a rotating motor 31, a welding gun 32 and a base 33 fixed on the sliding block 22; the rotating motor 31 is fixed on the base 33, and the welding gun 32 is connected with the rotating motor 31 in a matching way.

As shown in fig. 2, the base 33 includes a first fixing block 330 fixed on the sliding block 22, a second fixing block 331 capable of horizontally sliding on the first fixing block 330, a third fixing block 332 fixedly connected to or integrally formed with the first fixing block 330, a first bolt screwed with the third fixing block 332 and capable of driving the second fixing block 331 to horizontally slide on the first fixing block 330, a fourth fixing block 334 fixedly connected to or integrally formed with the second fixing block 331, a fifth fixing block 335 capable of vertically sliding on the fourth fixing block 334, a sixth fixing block 336 fixedly connected to or integrally formed with the fourth fixing block 334, and a second bolt 337 screwed with the sixth fixing block 336 and capable of driving the fifth fixing block 335 to vertically slide on the fourth fixing block 334.

In other embodiments, the base 33 includes a first fixing block 330 fixed on the sliding block 22, a second fixing block 331 vertically slidable on the first fixing block 330, a third fixing block 332 fixedly connected to or integrally formed with the first fixing block 330, a first bolt threadedly engaged with the third fixing block 332 and driving the second fixing block 331 to vertically slide on the first fixing block 330, a fourth fixing block 334 fixedly connected to or integrally formed with the second fixing block 331, a fifth fixing block 335 horizontally slidable on the fourth fixing block 334, a sixth fixing block 336 fixedly connected to or integrally formed with the fourth fixing block 334, and a second bolt 337 threadedly engaged with the sixth fixing block 336 and driving the fifth fixing block 335 to horizontally slide on the third fixing block 332.

It should be noted that, in the above two embodiments, the second fixing block 331 and the fourth fixing block 334 are arranged at a right angle, but it is obvious that the welding gun 32 can move up and down and back and forth only when there is a certain angle between the second fixing block 331 and the fourth fixing block 334, but it is preferable that the second fixing block 331 and the fourth fixing block 334 are arranged at a right angle in consideration of the difficulty.

In addition, in the present embodiment, in view of the difficulty of the manufacturing process, it is preferable that the first fixing block 330 and the third fixing block 332 are fixedly connected by a screw, the second fixing block 331 and the fourth fixing block 334 are fixedly connected by a screw, and the fourth fixing block 334 and the sixth fixing block 336 are fixedly connected by a screw.

Specifically, dovetail grooves are formed in the first fixing block 330 and the fourth fixing block 334, a first protruding portion matched with the dovetail groove in the first fixing block 330 is formed in the second fixing block 331, and the second protruding portion is arranged in such a manner that the second fixing block 331 can only be taken out through sliding on the first fixing block 330 but cannot be taken out through other modes, a second protruding portion matched with the dovetail groove in the fourth fixing block 334 is formed in the fifth fixing block 335, so that the fifth fixing block 335 can only be taken out through sliding on the fourth fixing block 334 but cannot be taken out through other modes, and thus, the dovetail grooves are formed in the first fixing block 330 and the fourth fixing block 334, so that the welding gun 32 can stably move in four directions, namely, the front direction, the rear direction and the up direction.

It should be noted that, when the first fixing block 330 and the fourth fixing block 334 are provided with grooves of common shapes, such as rectangular grooves, semicircular grooves, and other grooves, and the side walls of the grooves are further provided with other grooves for limiting the second fixing block 331 and the second fixing block 331 to move up and down, the welding gun 32 can still move up and down in four directions in a very stable manner, but in terms of the difficulty of the manufacturing process and the strength of the components, the first fixing block 330 and the fourth fixing block 334 are preferably provided with dovetail grooves.

Specifically, a first buffer block 338 is disposed between the first fixed block 330 and the second fixed block 331, and the first buffer block 338 is mounted on a side wall of the dovetail groove of the first fixed block 330 by an adjusting screw.

Specifically, a second buffer block is arranged between the fourth fixed block 334 and the fifth fixed block 335, and the second buffer block is mounted on the side wall of the dovetail groove of the fourth fixed block 334 through an adjusting screw.

Thus, since the first fixing block 330 and the second fixing block 331 are only fitted through the dovetail groove, and the fourth fixing block 334 and the fifth fixing block 335 are only fitted through the dovetail groove, theoretically, the second fixing block 331 can smoothly slide on the first fixing block 330 and the fifth fixing block 335 can smoothly slide on the fourth fixing block 334, but considering the fitting tolerance problem, if the first fixing block 330 is in interference fit with the second fixing block 331 and the fourth fixing block 334 is in interference fit with the fifth fixing block 335, it is obvious that the second fixing block 331 cannot smoothly slide on the first fixing block 330 and the fifth fixing block 335 cannot smoothly slide on the fourth fixing block 334, and if the first fixing block 330 is in interference fit with the second fixing block 331 and the fourth fixing block 334 is in clearance fit with the fifth fixing block 335, it is obvious that the second fixing block 331 slides on the first fixing block 330 and the fifth fixing block 335 slides on the fourth fixing block 334, the deviation to both sides of the dovetail groove occurs, and the above problem can be solved by adding the first buffer block 338 and the second buffer block.

As shown in fig. 3, a first mounting hole 3311 is formed in a first side surface of the second fixing block 331, a first pin hole 3312 is formed in a second side surface connected to the first side surface, a pin corresponding to the first pin hole 3312 is formed in the first pin hole 3312, the first pin hole 3312 intersects with an edge region of the first mounting hole 3311, a first bolt is threadedly engaged with the third fixing block 332 and is mounted in the first mounting hole 3311, and the second fixing block 331 is driven to slide on the first fixing block 330 by the first bolt through rotation.

As shown in fig. 4, a second mounting hole 3351 is formed on a first side surface of the fifth fixing block 335, a second pin hole 3352 is formed on a second side surface connected to the first side surface, a pin is disposed in the second pin hole 3352, the second pin hole 3352 intersects with an edge region of the second mounting hole 3351, a second bolt 337 is threadedly engaged with the sixth fixing block 336 and is mounted in the second mounting hole 3351, and the fifth fixing block 335 is driven to slide on the fourth fixing block 334 by the second bolt 337 through rotation.

The first pin hole 3312 and the second pin hole 3352 may be square holes or circular holes, and the corresponding pins are square pins or round pins.

Thus, the first bolt is in threaded fit with the third fixing block 332, when the first bolt moves forward by clockwise rotation, the top end of the first bolt idles in the first mounting hole 3311, but the first pin hole 3312 intersects with the edge area of the first mounting hole 3311, that is, the square pin is in tight fit with the first bolt, so that when the first bolt moves forward by clockwise rotation, the square pin can be driven to move forward, so that the second fixing block 331 slides forward on the first fixing block 330, and similarly, when the first bolt moves backward by counterclockwise rotation, the second fixing block 331 can slide backward on the first fixing block 330.

The principle of the second bolt 337 controlling the fifth fixing block 335 to slide up and down on the fourth fixing block 334 is the same as the principle of the first bolt controlling the second fixing block 331 to slide back and forth on the first fixing block 330.

Specifically, a first positioning block 23 and a second positioning block 24 are respectively arranged at two ends of the bottom plate 21, a sliding rod 25 is arranged on the first positioning block 23 and the second positioning block 24, the sliding block 22 slides between the first positioning block 23 and the second positioning block 24 through the sliding rod 25, in other embodiments, the first positioning block 23 and the second positioning block 24 are respectively arranged at two ends of the bottom plate 21, a sliding groove is arranged on the bottom plate 21, the sliding block 22 is matched with the sliding groove to slide between the first positioning block 23 and the second positioning block 24, and when the sliding block 22 is tightly attached to the first positioning block 23 or the second positioning block 24, the center shaft of the rotating motor 31 can be coaxial with the circle center of the welding fillet by adjusting the first bolt or the second bolt 337.

Thus, the control unit controls the first bolt to rotate, so that the welding gun 32 can move in the front and rear directions; the welding gun 32 can complete the movement in the up and down directions by controlling the rotation of the second bolt 337; through the control slider 22 slip, alright make welder 32 accomplish the removal of two directions all around, through control rotating electrical machines 31, alright make welder 32 accomplish circular motion, like this when input welding track in the control part, the control part alright make welder 32 accomplish the removal of setting for the orbit through controlling first bolt, second bolt 337, slider 22 and rotating electrical machines 31, can make this fillet welding equipment can weld the fillet of multiple different specifications as required.

As shown in fig. 5, the bottom of the underframe 1 is a rectangular first frame 11, two inner frames parallel to the frames are arranged inside the first frame 11, a vertical second frame 12 and a vertical third frame 13 with equal height are arranged on the frames of the first frame 11, a vertical fourth frame 14 and a vertical fifth frame 15 with equal height are arranged on the inner frames, the second frame 12, the fourth frame 14, the fifth frame 15 and the third frame 13 are sequentially arranged and parallel, the second frame 12 and the third frame 13 are equal in height to the fourth frame 14 and the fifth frame 15, a bottom plate 21 is fixed on the second frame 12 and the third frame 13 through screws, a third buffer block 17 is fixed on the second frame 12, a fourth buffer block 18 is fixed between the third frames 13, and the third buffer block 17 and the fourth buffer block 18 are elastic members.

In other embodiments, the bottom of the underframe 1 is a parallelogram-shaped first frame 11, a plurality of nonparallel inner frames are arranged inside the first frame 11, vertical equal-height second frames 12 and third frames 13 are arranged on the frames of the first frame 11, vertical equal-height fourth frames 14 and fifth frames 15 are arranged on the inner frames, the second frames 12, the fourth frames 14, the fifth frames 15 and the third frames 13 are sequentially arranged and parallel, the second frames 12 and the third frames 13 are lower than the fourth frames 14 and the fifth frames 15, a bottom plate 21 is fixed on the fourth frames 14 and the fifth frames 15 through screws, third buffer blocks 17 are fixed on the fourth frames 14, fourth buffer blocks 18 are fixed between the fifth frames 15, and the third buffer blocks 17 and the fourth buffer blocks 18 are elastic members.

More preferably, two parallel reinforcing ribs 16 are further arranged between the fourth frame 14 and the fifth frame 15, and the reinforcing ribs 16 are positioned at the top ends of the fourth frame 14 and the fifth frame 15.

Specifically, the side arms of the second frame 12 and the third frame 13 are respectively provided with a clamping assembly 4 as shown in fig. 6, the clamping assembly 4 is used for pressing a to-be-welded part on the fourth frame 14 and the fifth frame 15, the clamping assembly 4 comprises a quick clamp fixed on the second frame 12 or the third frame 13, and a pressing part 41 positioned on the quick clamp, and the quick clamp comprises a handle 42, a first connecting frame 43, a second connecting frame 44, a connecting rod 45 and a seventh fixing block 46; the seventh fixing block 46 is fixedly connected with the second frame 12 or the third frame 13 through a threaded part; one end of the first connecting frame 43 is hinged to the seventh fixing block 46, and the other end is fixedly connected to the handle 42; one end of the second connecting frame 44 is hinged to the seventh fixing block 46 after passing through the first connecting frame 43, and is fixedly connected to the pressing member 41, one end of the connecting rod 45 is hinged to the first connecting frame 43, and the other end is hinged to the second connecting frame 44.

So set up, wherein treat the degree of freedom of two directions about the welding owing to treat the action of gravity restraint of welding itself, through second frame 12, fourth frame 14, fifth frame 15, the restraint of treating welding two direction degrees of freedom about the welding is accomplished to third frame 13 and third buffer block 17 and fourth buffer block 18, will treat through centre gripping subassembly 4 that the welding is sticis and accomplish on fourth frame 14 and fifth frame 15 and treat the restraint of two direction degrees of freedom around the welding, and like this, just accomplished the restraint of treating welding six direction degrees of freedom, make welding process very stable.

For fillet welding, when the member to be welded is a combination of two flat plates, as shown in fig. 7, one flat plate is fixed between the second frame 12 and the fourth frame 14, the other flat plate is pressed against the fourth frame 14 and the fifth frame 15 by the clamping assembly 4, and the two flat plates are distributed at right angles, so that the welding gun 32 can be controlled by the control part to complete fillet welding.

For refrigerators and other similar cabinet structures, the parts to be welded are often welded by three, four or more flat plates, and the parts to be welded are a combination of three flat plates, as shown in fig. 8, a first flat plate is fixed between a second frame 12 and a fourth frame 14, a second flat plate is pressed against the fourth frame 14 and a fifth frame 15 by a clamping assembly 4, and a third flat plate is fixed between a third frame 13 and a fifth frame 15, so that a welding gun 32 is controlled by a control part to complete fillet welding.

When the piece to be welded is the combination of four flat plates, the four flat plates can be selected to be welded pairwise, the welding mode is as shown in figure 7, and after the welding is finished, a non-cover and non-bottom rectangular frame is formed and fixed in the invention, so that the control part can control the welding gun 32 to finish fillet welding; alternatively, three plates may be welded in a manner shown in fig. 8, and then fixed between the third frame 13 and the fifth frame 15 and between the second frame 12 and the fourth frame 14, and another plate is pressed against the fourth frame 14 and the fifth frame 15 by the clamping assembly 4, so that the control unit controls the welding gun 32 to complete fillet welding.

When the welding part is a combination of five flat plates, the flat plates can be divided into three or two parts for welding, the welding modes are respectively shown in fig. 7 and 8, and after the welding is finished, a bottomless rectangular frame is formed and fixed in the invention, so that the welding gun 32 can be controlled by the control part to finish fillet welding.

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 do not necessarily 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.

Although embodiments of the present invention have been shown and described above, 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 in the above embodiments by those of ordinary skill in the art without departing from the principle and spirit of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A fillet welding device comprises a base frame (1), a sliding assembly (2) and a control part which are installed on the base frame (1), and a welding assembly (3) which is installed on the sliding assembly (2); the control part is used for controlling the welding assembly (3) to move according to a set track;

the sliding assembly (2) comprises a bottom plate (21) fixed on the upper part of the bottom frame (1) and a sliding block (22) capable of sliding on the bottom plate (21);

the welding assembly (3) comprises a rotating motor (31), a welding gun (32) and a base (33) fixed on the sliding block (22);

the base (33) comprises a first fixed block (330) fixed on the sliding block (22), a second fixed block (331) capable of sliding on the first fixed block (330), a third fixed block (332) fixedly connected with the first fixed block (330) or integrally formed, a first bolt which is in threaded fit with the third fixed block (332) and can drive the second fixed block (331) to slide on the first fixed block (330), a fourth fixed block (334) fixedly connected with the second fixed block (331) or integrally formed, a fifth fixed block (335) capable of sliding on the fourth fixed block (334), a sixth fixed block (336) fixedly connected with the fourth fixed block (334) or integrally formed, and a second bolt (337) which is in threaded fit with the sixth fixed block (336) and can drive the fifth fixed block (335) to slide on the fourth fixed block (334);

the rotating motor (31) is fixed on the fifth fixing block (335), and the welding gun (32) is connected with the rotating motor (31) in a matched mode.

2. The fillet welding device according to claim 1, wherein the first fixing block (330) and the fourth fixing block (334) are provided with dovetail grooves, the second fixing block (331) is provided with a first protruding part which is matched with the dovetail groove on the first fixing block (330) so that the second fixing block (331) can only slide on the first fixing block (330), and the fifth fixing block (335) is provided with a second protruding part which is matched with the dovetail groove on the fourth fixing block (334) so that the fifth fixing block (335) can only slide on the fourth fixing block (334).

3. The fillet welding equipment as claimed in claim 1, wherein a first mounting hole (3311) is formed in a first side surface of the second fixing block (331), a first pin hole (3312) is formed in a second side surface connected with the first side surface, a pin opposite to the first pin hole (3312) is arranged in the first pin hole (3312), the first pin hole (3312) intersects with an edge region of the first mounting hole (3311), a first bolt is in threaded fit with the third fixing block (332) and is mounted in the first mounting hole (3311), and the second fixing block (331) can be driven to slide on the first fixing block (330) by the first bolt through rotation.

4. The fillet welding device as claimed in claim 1, wherein a second mounting hole (3351) is formed in a first side surface of the fifth fixing block (335), a second pin hole (3352) is formed in a second side surface connected with the first side surface, a pin is arranged in the second pin hole (3352) and is opposite to the first side surface, the second pin hole (3352) intersects with an edge region of the second mounting hole (3351), the second bolt (337) is in threaded fit with the sixth fixing block (336) and is mounted in the second mounting hole (3351), and the fifth fixing block (335) can be driven to slide on the fourth fixing block (334) by the second bolt (337) through rotation.

5. The fillet welding device as claimed in claim 2, wherein a first buffer block (338) is arranged between the first fixing block (330) and the second fixing block (331), and the first buffer block (338) is mounted on the side wall of the dovetail groove of the first fixing block (330) through an adjusting screw.

6. The fillet welding device as claimed in claim 2, wherein a second buffer block is arranged between the fourth fixing block (334) and the fifth fixing block (335), and the second buffer block is mounted on the side wall of the dovetail groove of the fourth fixing block (334) through an adjusting screw.

7. The fillet welding device according to claim 1, wherein a first positioning block (23) and a second positioning block (24) are respectively arranged at two ends of the bottom plate (21), the sliding block (22) slides between the first positioning block (23) and the second positioning block (24), and when the sliding block (22) is tightly attached to the first positioning block (23) or the second positioning block (24), the center axis of the rotating motor (31) can be coaxial with the circle center of the welding fillet by adjusting the first bolt or the second bolt (337).

8. The fillet welding equipment according to claim 1, wherein the bottom of the base frame (1) is a parallelogram-shaped first frame (11), an inner frame is arranged inside the first frame (11), a vertical second frame (12) and a vertical third frame (13) are arranged on the frame of the first frame (11), a vertical fourth frame (14) and a vertical fifth frame (15) are arranged on the inner frame, the second frame (12), the fourth frame (14), the fifth frame (15) and the third frame (13) are sequentially arranged and parallel, a third buffer block (17) is arranged between the second frame (12) and the fourth frame (14), and a fourth buffer block (18) is arranged between the fifth frame (15) and the third frame (13).

9. The fillet welding equipment according to claim 8, characterized in that the second frame (12) and the third frame (13) are provided with clamping assemblies (4) on the side arms, respectively, the clamping assemblies (4) being used for pressing the piece to be welded against the fourth frame (14) and the fifth frame (15).

10. The fillet welding equipment as recited in claim 9, characterized in that the clamping assembly (4) comprises a quick clamp fixed on the second frame (12) or the third frame (13), and a pressing member (41) on the quick clamp, the quick clamp comprises a handle (42), a first connecting frame (43), a second connecting frame (44), a connecting rod (45) and a seventh fixing block (46); the seventh fixing block (46) is fixedly connected with the second frame (12) or the third frame (13) through a threaded piece; one end of the first connecting frame (43) is hinged with the seventh fixing block (46), and the other end of the first connecting frame is fixedly connected with the handle (42); one end of the second connecting frame (44) penetrates through the first connecting frame (43) and then is hinged with the seventh fixing block (46) and is fixedly connected with the pressing piece (41), one end of the connecting rod (45) is hinged with the first connecting frame (43), and the other end of the connecting rod is hinged with the second connecting frame (44).