CN104353951A - Welding fixture - Google Patents

Abstract

The invention relates to a welding fixture which comprises a base (1), wherein an upright post (2) is arranged at the upper end of the base (1); a sleeve (3) is connected to the outer surface of the upright post in a sleeving manner; the sleeve (3) is in sliding connection with the upright post (2); a cross beam (4) is connected to one side of the sleeve (3); a cantilever rod (5) is movably connected to the outer end of the cross beam (4); a clamping head (6) is detachably connected to one side of the cantilever rod (5); an electricity box (7) is arranged on the outer side surface of the base (1); the electricity box (7) is connected with a welding gun (9) through an electric wire (8). The welding fixture solves the problems that multi-angle welding work cannot be flexibly carried out, the welding difficulty is high, and great inconvenience is caused as both the fixture and the welding device are required to be carried when the fixture is replaced and the welding is carried out for objects with different sizes.

Description

A kind of weld jig

Technical field

The present invention relates to a kind of fixture, particularly relate to a kind of weld jig.

Background technology

Fixture is used for fixing processing object in machine-building process, makes it to occupy correct position, to accept the device of constructing or detecting.In a broad sense, any operation in technical process, is used for rapidly, installs easily and safely the device of workpiece, all can be described as fixture.Such as weld jig, inspection jig, assembling jig, jig etc.Wherein jig is the most common, often referred to as fixture.On lathe during processing work, the dimensions reaching drawing for making the surface energy of workpiece and specify, geometry and with the technical requirements such as the relative-position error on other surfaces, workpiece must be installed (location) before processing, clip (clamping).Fixture is usually by compositions such as setting element (determining the tram of workpiece in fixture), clamping device, tool setting induction element (determine the relative position of cutter and workpiece or guide tool orientation), indexing means (make workpiece can complete the processing of several station in once mounting, have circular index device and rectilinear movement indexing means two class), Connection Element and clamp bodies (clamp base).

Fixture kind can be divided into by handling characteristics: 1. universal fixture.As machine vice, chuck, sucker, dividing head and rotary table etc., have very large versatility, can adapt to the conversion of manufacturing procedure and processing object preferably, its structure is shaped, the seriation of size, specification, wherein great majority have become a kind of standard accessory of lathe.2. specificity fixture.For the clamping of certain product parts on certain procedure needs and specialized designs manufacture, service object is single-minded, and specific aim is very strong, generally by product manufacturing factory designed, designed.Conventional has turning attachment, fraise jig, drill jig (guiding the jig that cutter is holed or reamed on workpiece), boring template (guiding the jig of boring cutter bar bore hole on workpiece) and pallet (mobile clamping on transfer line of modular machine, automatic production line of modular machine).3. flexible jig.Can change or adjust the special fixture of element.4. built-up jig.The fixture be made up of the standardized component of difformity, specification and purposes, is applicable to single-piece that trial production of new products and product often change, small serial production and temporary duty.

The versatility of fixture directly affects its economy.Adopt module, knockdown chucking appliance system, one-time investment is larger, and only have the reconfigurability of chucking appliance system, reconfigurability and scalability feature strong, applied range, versatility is good, and fixture utilization rate is high, recoups capital outlay fast, just can embody good economy performance.Germany demmeler (Dai Meile), the hole series of combination weld jig of company, only uses the kit that kind, specification are little, can be assembled into diversified weld jig.The function of element is strong, and make the versatility of fixture good, element is fewer but better, and supporting expense is low, economical and practical.

For ensureing weldment size, improving assembly precision and efficiency, preventing the fixture that welding deformation adopts.The design of Cab Welding Jig is an empirical very strong integrated technology, first will determine production outline, being familiar with product structure when designing, and understands deformation characteristics, holds product and assembly precision, understands thoroughly technological requirement.Only accomplish these, omnibearing design could be carried out to weld jig.

Weld jig accuracy standard is formulated by designing unit, wherein defines form and the required precision of base plate baseline trough and seat line; The size of alignment pin and other positioning support bearing member and Geometrical Tolerance Principle, manufacturer carries out detecting, judging Row sum-equal matrix of going forward side by side, with regard to fixed locating stud after qualified on request.Along with the raising of machine finish, in order to reduce position error, improving machining accuracy, requiring higher to the accuracy of manufacture of fixture.The location dimension precision between the holes of high-accuracy clamp is up to 0.01mm/ ± 5um, and the perpendicularity in fixture supports face reaches 0.01mm/300mm, and the depth of parallelism is up to 0.01mm/500mm.Germany demmeler (Dai Meile), the hole series of combination weld jig platform that 4m is long, 2m is wide that company manufactures, its high level error such as grade is ± 0.03mm; The depth of parallelism of precision flatnosed pliers and perpendicularity are within 5um; The positioning precision that fixture repeats to install is up to ± 5um; The repetitive positioning accuracy of Switzerland EROEA flexible fixture is up to 2-5um.The precision of jig brings up to micron order, world-famous fixture manufacturing company Dou Shi precision optical machinery manufacturing enterprise.Really, in order to adapt to demand and the economy of different industries, fixture has different models, and the accuracy standard of different class is selective.

At present in welding operation, there are flat surfacing, fillet welding, horizontal position welding, vertical position welding, overhead welding; Operation format has the docking of plate plate, tube sheet docking, the docking of pipe pipe; Work angle has all positon, the welding such as 45 degree.But weld jig is in the market all the fixing welding job cannot carrying out multi-angle flexibly, thus the requirement that cannot comprehensively reach in operation, add welding job difficulty, also will with changing fixture when the object of corresponding different size welds, and general weld jig is without welder, during welding, fixture and welder will carry simultaneously, very inconvenient.

Summary of the invention

The technical problem to be solved in the present invention is to provide a kind of weld jig, and this weld jig solves that welding job, the welding job difficulty that cannot carry out multi-angle are flexibly large, fixture and welder will carry very inconvenient problem simultaneously when will to change fixture and welding for the object of different size.

In order to solve the problems of the technologies described above, weld jig of the present invention comprises base, in base upper end, column is set, column outer surface socket sleeve, sleeve and column are slidably connected, sleeve side connecting cross beam, crossbeam outer end is flexibly connected cantilever lever, cantilever lever side removably connects chuck, and chassis outer side surface arranges electronic box, and electronic box connects welding gun by electric wire.

Described sleeve and beam welding.

Described crossbeam is connected with cantilever lever by turning cylinder.

Described cantilever lever is threaded with chuck.

Described base arranges roller.

Described roller is universal wheel.

Adopt this weld jig, due to column outer surface socket sleeve, sleeve and column are slidably connected, and chuck can carry out the adjustment of height according to the requirement of welding; Due to sleeve side connecting cross beam, crossbeam outer end is flexibly connected cantilever lever, can regulate cantilever lever angle, namely chuck angle is adjusted, because cantilever lever side removably connects chuck, can according to the size of welding object, change the size of chuck, need not with changing whole fixture; Because chassis outer side surface arranges electronic box, electronic box connects welding gun by electric wire, is combined together by welder like this with weld jig, carries more convenient; Crossbeam is connected with cantilever lever by turning cylinder, and cantilever lever rotates more convenient; Cantilever lever is threaded with chuck, and such chuck is dismantled, it is more convenient to install; Base arranges roller, and roller is universal wheel, and it is more convenient that whole weld jig moves.

Accompanying drawing explanation

Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.

Fig. 1 is the structural representation of a kind of weld jig of the present invention.

Wherein have: 1. base; 2. column; 3. sleeve; 4. crossbeam; 5. cantilever lever; 6. chuck; 7. electronic box; 8. electric wire; 9. welding gun; 10. roller.

Detailed description of the invention

Weld jig shown in Fig. 1, comprise base 1, in base 1 upper end, column 2 is set, column 2 outer surface socket sleeve 3, sleeve 3 and column 2 are slidably connected, sleeve 3 side connecting cross beam 4, crossbeam 4 outer end is flexibly connected cantilever lever 5, cantilever lever 5 side removably connects chuck 6, and base 1 outer surface arranges electronic box 7, and electronic box 7 connects welding gun 9 by electric wire 8.

Described sleeve 3 welds with crossbeam 4.

Described crossbeam 4 is connected with cantilever lever 5 by turning cylinder.

Described cantilever lever 5 is threaded with chuck 6.

Described base 1 arranges roller 10.

Described roller 10 is universal wheel.

Column 2 outer surface socket sleeve 3, sleeve 3 and column 2 are slidably connected, and chuck 6 can carry out the adjustment of height according to the requirement of welding; Sleeve 3 side connecting cross beam 4, crossbeam 4 outer end is flexibly connected cantilever lever 5, can regulate cantilever lever 5 angle, namely have adjusted the angle of chuck 6, and cantilever lever 5 side removably connects chuck 6, according to the size of welding object, can change the size of chuck 6; Base 1 outer surface arranges electronic box 7, and electronic box 7 connects welding gun 9 by electric wire 8, is combined together by welder like this with weld jig, carries more convenient; Crossbeam 4 is connected with cantilever lever 5 by turning cylinder, and cantilever lever 5 rotates more convenient; Cantilever lever 5 is threaded with chuck 6, and such chuck 6 is dismantled, it is more convenient to install; Base 1 arranges roller 10, and roller 10 is universal wheel, and it is more convenient that whole weld jig moves.

Because the height welding object is different, the height of regulating sleeve 3 on column 2 can be carried out according to the height of object.Column 2 with sleeve 3 arrange the identical hole of several sizes, when needs alignment jig height, only needs moving sleeve 3 to the position be applicable to, make the hole on sleeve 3 corresponding with the hole on column 2, then by bolt, sleeve 3 is fixed.

The technical characteristic described in detail is not had to be prior art in the application.Above-described embodiment is the principle of illustrative the application and effect thereof only, but not for limiting the application.Any person skilled in the art scholar all under the spirit and category of the application, can modify above-described embodiment or changes.Therefore, have in art and usually know that the knowledgeable modifies or changes not departing from all equivalences completed under the spirit and technological thought that the application discloses, must be contained by the claim of the application.

Claims (6)

1. a weld jig, it is characterized in that: comprise base (1), in base (1) upper end, column (2) is set, column (2) outer surface socket sleeve (3), sleeve (3) and column (2) are slidably connected, sleeve (3) side connecting cross beam (4), crossbeam (4) outer end is flexibly connected cantilever lever (5), cantilever lever (5) side removably connects chuck (6), and base (1) outer surface arranges electronic box (7), and electronic box (7) connects welding gun (9) by electric wire (8).

2. according to weld jig according to claim 1, it is characterized in that: described sleeve (3) welds with crossbeam (4).

3. according to weld jig according to claim 1, it is characterized in that: described crossbeam (4) is connected with cantilever lever (5) by turning cylinder.

4. according to weld jig according to claim 1, it is characterized in that: described cantilever lever (5) is threaded with chuck (6).

5. according to weld jig according to claim 1, it is characterized in that: described base (1) arranges roller (10).

6. according to weld jig according to claim 5, it is characterized in that: described roller (10) is universal wheel.