CN104959772A - Welding positioning device for water heater tank - Google Patents
Welding positioning device for water heater tank Download PDFInfo
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- CN104959772A CN104959772A CN201510426759.0A CN201510426759A CN104959772A CN 104959772 A CN104959772 A CN 104959772A CN 201510426759 A CN201510426759 A CN 201510426759A CN 104959772 A CN104959772 A CN 104959772A
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- centering
- water heater
- slide rail
- welding
- hydraulic cylinder
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/053—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work aligning cylindrical work; Clamping devices therefor
- B23K37/0533—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work aligning cylindrical work; Clamping devices therefor external pipe alignment clamps
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- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
The invention discloses a welding positioning device for a water heater tank, and belongs to the field of welding positioning devices. The welding positioning device for the water heater tank comprises a rack, clamping devices installed at the two sides of the rack and a support platform located between the two clamping devices. Each clamping device comprises a linear slide rail component, a pressing component and an centering component. The linear slide rail components are arranged on the rack. Slide rail connecting plates are arranged in the pressing components. The slide rail connecting plates are connected with first slide rails in the linear slide rail components in a sliding mode. The centering components are connected with the pressing components in a sliding mode. The centering components at the two sides of the support platform are controlled to clamp with each other through the pressing components. A top pressing device is arranged on the rack to reduce a welding seam. The welding positioning device for the water heater tank has the advantages that the spot welding quality is improved by vertically pressing and horizontally centering, the welding efficiency is high, and the welding positioning device for the water heater tank is suitable for positioning spot welding of the water heater of different sizes.
Description
Technical field
The present invention relates to apparatus for welding and positioning technical field, more particularly, relate to a kind of water heater liner apparatus for welding and positioning.
Background technology
Water heater liner is the device for storage of water in water heater, it must meet insulation, withstand voltage, non-corrosive, Non-scale, impermeable requirement, present water heater liner mainly stainless steel inner container, its advantage is that inner bag material is good, intensity is high, high temperature resistant, anticorrosive, stable performance, not easily gets rusty.Due to water heater liner once damage is difficult to repair, its manufacturing process seems quite important.As everyone knows, stainless steel inner container is difficult to welding, and wherein maximum hidden danger is weld seam technique, and in technological process, conventional water heaters inner bag adopts end cap welding method, and inner bag cylindrical shell adopts artificial hand steered location, cannot ensure its positioning precision; The quality of welding and the skilled operation degree of employee, mood are closely related, and easily produce rosin joint phenomenon, and are not easily found, and just easily get rusty and leak, and cannot check before rosin joint part of factory between time slightly long weld seam.As Fig. 1, when producing water heater liner at present, be mostly pulling form moulding, produce upper shell and the lower shell of inner bag, carry out processes, then spot welding location, finally carries out gap welding, completes the assembling of water heater liner.
Through retrieval, it is open that relevant technical matters has pertinent literature, as Chinese Patent Application No.: 201010548915.8, the applying date: on November 17th, 2010, this application case discloses a kind of end cover of water heater inner container automatic welding unit, comprise seam welder group, seam welder group comprises seam welder head, and seam welder head comprises float positioning device, seam welding electrode wheel and lowering or hoisting gear.Pass through such scheme, the end cap part of water heater liner can be held by float positioning device, coordinate lowering or hoisting gear, easily it can be docked with the shell portion of water heater liner, the cylindrical shell of water heater liner is by electrode wheel driven rotary, and the end cap of water heater liner and the welding edge of cylindrical shell are placed in stitch between welding electrode takes turns, carry out seam welder easily and do.Preferably, seam welder group upstream is also provided with spot welding unit, water heater liner is being transported into before seam welder group, first send into spot welding unit and carry out spot welding, and the end cap part of water heater liner is adsorbed by adsorption locating device, and provide rotary driving force by servomotor, spot welding work can be realized by soldering turret easily, and spot welding unit can weld at two ends simultaneously.The program is just fixed water heater liner at two ends, and locating effect is unsatisfactory, and can not ensure being uniformly distributed of spot welding anchor point, easily occur that stress is concentrated and causes water heater liner deformation phenomenon, affect product quality, during location, institute's spended time is more, affects working (machining) efficiency.
And for example Chinese Patent Application No. 201010281766.3, the applying date: on September 13rd, 2010, this application case discloses a kind of welding method of cylindrical shell of water heater, its main process is the stack shell of preparation one tubular, then the capping that root edge coordinates stack shell ora terminalis shape is prepared, capping is docked towards stack shell end with root edge, at the medial surface at stack shell ora terminalis place and capping root edge place, arrange one removably and put tool, the gap of corresponding capping and root edge, casting ditch is melted at the outer peripheral face putting tool recessed, finally weld along the joint of capping with stack shell ora terminalis, solder joint is made to fuse the root edge of capping, the ora terminalis of stack shell melting casts from and melts weldering ditch and form an interior welding bead.This welding manner still adopts traditional syllogic tube structure, cumbersome, and product easily leaks, and can not meet high-quality, efficient production requirement now.
Summary of the invention
1. invent the technical problem that will solve
The object of the invention is to overcome in prior art and locate inaccurate, inefficient deficiency when water heater liner spot welding is located, provide a kind of water heater liner apparatus for welding and positioning, technical scheme of the present invention, point quality is improve by longitudinally compressing and laterally feeling relieved, welding efficiency is high, is applicable to the tack-weld of different size water heater liner.
2. technical scheme
For achieving the above object, technical scheme provided by the invention is:
A kind of water heater liner apparatus for welding and positioning of the present invention, comprise support, be arranged on the clamping device of support both sides and the brace table between two clamping devices, described clamping device comprises line slide rail assembly, hold down assembly and feel relieved assembly, described line slide rail assembly is arranged on support, be provided with slide rail connecting plate in holding down assembly, the first slide rail in this slide rail connecting plate and line slide rail assembly is slidably connected; Described centering assembly is slidably connected with holding down assembly, and by holding down assembly, the centering assembly controlling brace table both sides engages mutually.
As further improvement of the present invention, described holding down assembly also comprises the second slide rail, hydraulic cylinder bearing and transverse hydraulic cylinder, described second slide rail, hydraulic cylinder bearing are all fixedly connected with slide rail connecting plate, and hydraulic cylinder bearing is between two the second slide rails be arranged in parallel; Described transverse hydraulic cylinder is fixed on hydraulic cylinder bearing, promotes centering assembly slide on the second slide rail by the horizontal piston rod in transverse hydraulic cylinder.
As further improvement of the present invention, described line slide rail assembly is primarily of sidepiece handwheel, feed screw and pair of nut composition, and described feed screw is supported by two bearing blocks fixed on the table, and feed screw outer end and sidepiece handwheel are connected; Described pair of nut is fixed on slide rail connecting plate lower end, and pair of nut and feed screw engaged transmission.
As further improvement of the present invention, described centering assembly comprises centering slide block, centering bearing, backstay and the centering collar, and described centering slide block is arranged on below centering bearing, and centering slide block and the second slide rail are slidably connected; Described backstay, the centering collar are horizontally installed on centering bearing side.
As further improvement of the present invention, the described centering collar is arranged at intervals with 2 ~ 4 some weld bonds, detent is provided with at the end face of the centering collar of workbench side, be provided with locating convex block at the end face of the centering collar of workbench opposite side, during two centering collar engagings, locating convex block is positioned at detent.
As further improvement of the present invention, described brace table comprises bottom handwheel, longitudinally regulates screw mandrel, bottom slide bar and bottom support plate, the described top of screw mandrel that longitudinally regulates is connected with bottom support plate by bearing, longitudinally regulate the nut engaged transmission on screw mandrel and support, upper end and the bottom support plate of described bottom slide bar are connected, and two bottom slide bars are symmetrical arranged about longitudinally regulating screw mandrel; Described bottom handwheel is fixed on and longitudinally regulates screw mandrel bottom.
As further improvement of the present invention, described cradle top is provided with top cross-bar, and top cross-bar is provided with top hold down gag.
As further improvement of the present invention, described top hold down gag comprises longitudinally compression hydraulic cylinder and top gland, and the described hydraulic cylinder that longitudinally compresses is fixedly connected with top cross-bar, and the piston rod driving top gland longitudinally compressing hydraulic cylinder moves up and down.
As further improvement of the present invention, the described hydraulic cylinder that longitudinally compresses regulates screw mandrel coaxially to arrange with longitudinal.
3. beneficial effect
Adopt technical scheme provided by the invention, compared with prior art, there is following beneficial effect:
(1) a kind of water heater liner apparatus for welding and positioning of the present invention, utilization holds down assembly and drives centering component movement, make two collar automatic fastenings of feeling relieved, detent, the locating convex block structure of centering ferrule end face can make centering collar accurate fit, the water heater liner collar of being felt relieved is blocked, not easily rocks; Centring sleeve ring-side wall is provided with a weld bond, directly can carries out spot welding at a weld bond behind location, efficiently fast;
(2) a kind of water heater liner apparatus for welding and positioning of the present invention, set line slide rail assembly can make to hold down assembly to horizontally slip, further increase the adjustable distance of the centering inter-module of support both sides, and brace table also its level height adjustable, make this device can adapt to the spot welding processing of the water heater liner of different size;
(3) a kind of water heater liner apparatus for welding and positioning of the present invention, the top cross-bar of support is provided with top hold down gag, it longitudinally compresses hydraulic cylinder and longitudinally regulates screw mandrel coaxially to arrange, the concentricity of water heater liner upper shell and lower shell can be ensured on the one hand, weld seam between the two can be reduced on the other hand, avoid the generation of rosin joint, improve product quality.
Accompanying drawing explanation
Fig. 1 is the structural representation of water heater liner;
Fig. 2 is the structural representation of water heater liner apparatus for welding and positioning of the present invention;
Fig. 3 holds down assembly in the present invention and the structural representation of assembly of feeling relieved;
Fig. 4 is the structural representation of cathetus slide track component of the present invention;
Fig. 5 is the side-looking structural representation of Fig. 3 shown device;
Fig. 6 is the fit structure schematic diagram of two centering collars in the present invention.
Label declaration in schematic diagram: 1, support; 101, workbench; 102, top cross-bar; 2, line slide rail assembly; 201, sidepiece handwheel; 202, feed screw; 203, pair of nut; 204, the first slide rail; 3, hold down assembly; 301, slide rail connecting plate; 302, the second slide rail; 303, hydraulic cylinder bearing; 304, transverse hydraulic cylinder; 305, horizontal piston rod; 4, centering assembly; 401, centering slide block; 402, centering bearing; 403, the first backstay; 404, the centering collar; 405, weld bond is put; 406, locating convex block; 407, the second backstay; 408, the 3rd backstay; 501, bottom handwheel; 502, longitudinally screw mandrel is regulated; 503, bottom slide bar; 504, bottom support plate; 601, longitudinally hydraulic cylinder is compressed; 602, top slide bar; 603, top fixing plate; 604, top gland.
Detailed description of the invention
For understanding content of the present invention further, the present invention is described in detail in conjunction with the accompanying drawings and embodiments.
Embodiment 1
Composition graphs 2, a kind of water heater liner apparatus for welding and positioning of the present embodiment, primarily of support 1, is arranged on the clamping device of support 1 both sides and the brace table composition between two clamping devices.Support 1 both sides are provided with workbench 101, and clamping device is arranged on workbench 101.Clamping device comprises line slide rail assembly 2, hold down assembly 3 and centering assembly 4.Wherein, line slide rail assembly 2 is arranged on support 1, holds down assembly in 3 and is provided with slide rail connecting plate 301, and this slide rail connecting plate 301 is slidably connected with the first slide rail 204 in line slide rail assembly 2; Described centering assembly 43 to be slidably connected with holding down assembly, and is mutually engaged by the centering assembly 4 of the 3 control brace table both sides that hold down assembly.
Composition graphs 2 and Fig. 4, line slide rail assembly 2 in the present embodiment forms primarily of sidepiece handwheel 201, feed screw 202 and pair of nut 203, feed screw 202 is supported by two bearing blocks be fixed on workbench 101, and feed screw 202 outer end and sidepiece handwheel 201 are connected; Pair of nut 203 is fixed on slide rail connecting plate 301 lower end, and pair of nut 203 and feed screw 202 engaged transmission.First slide rail 204 is set in parallel on workbench 101, and feed screw 202 and the first slide rail 204 be arranged in parallel, and between two the first slide rails 204.Clockwise or rotate counterclockwise sidepiece handwheel 201, pair of nut 203 can be controlled and advance on feed screw 202 or retreat, and then drive slide rail connecting plate 301 horizontally slips on the first slide rail 204, realizes the object of spacing.
Composition graphs 3 and Fig. 5, holding down assembly in the present embodiment 3 also comprises the second slide rail 302, hydraulic cylinder bearing 303 and transverse hydraulic cylinder 304, second slide rail 302, hydraulic cylinder bearing 303 are all fixedly connected with slide rail connecting plate 301, and hydraulic cylinder bearing 303 is between two the second slide rails 302 be arranged in parallel; Described transverse hydraulic cylinder 304 is fixed on hydraulic cylinder bearing 303, promotes centering assembly 4 slide on the second slide rail 302, for being compressed by water heater liner by the horizontal piston rod 305 in transverse hydraulic cylinder 304.
Its centering assembly 4 comprises centering slide block 401, centering bearing 402, backstay and the centering collar 404, and centering bearing 402 is made up of two pieces of perpendicular flat boards, is provided with set square reinforcement between two pieces of flat boards, to strengthen the structural strength of centering bearing 402.Centering slide block 401 is arranged on below centering bearing 402, and centering slide block 401 and the second slide rail 302 are slidably connected; The vertical plate of centering bearing 402 is connected with horizontal piston rod 305, drives centering bearing 402 to slide on the second slide rail 302 by horizontal piston rod 305.
Composition graphs 3 and Fig. 6, above-mentioned backstay, the centering collar 404 are horizontally installed on centering bearing 402 side, the centering collar 404 is arranged at intervals with 4 some weld bonds 405, makes a weld bond 405 be uniformly distributed as far as possible, during guarantee electric welding, water heater liner is heated evenly, and avoids producing excessive deformation quantity.The outer imperial palace of some weld bond 405 is little, is convenient to spot welding processing.In addition, can coordinate completely in order to two collars 404 of feeling relieved can be made, with the compactness of the accuracy and engaging that improve centering, the end face of the centering collar 404 on the left of workbench 101 is provided with detent, the end face of the centering collar 404 on the right side of workbench 101 is provided with locating convex block 406, and when two centering collars 404 engage, locating convex block 406 is positioned at detent, makes water heater liner be firmly stuck in the centering collar 404, directly spot welding can be carried out at a weld bond 405, efficiently fast behind location.
Referring to Fig. 3, described backstay comprises the first backstay 403, second backstay 407 and the 3rd backstay 408, first backstay 403 is positioned on the downside of the centering collar 404, for snapping in the water inlet of water heater liner, second backstay 407 and the 3rd backstay 408 are positioned at above the centering collar 404, wherein the second backstay 407 can insert delivery port location, and the 3rd backstay 408 can insert the sewage draining exit of water heater liner.First backstay 403, second backstay 407 and the 3rd backstay 408 not only can determine the distributing position of water heater liner, can also position the position distribution of upper shell and lower shell, ensure that water inlet, position height between delivery port and sewage draining exit are identical with setting height.
Referring to Fig. 2, brace table in the present embodiment comprises bottom handwheel 501, longitudinally regulates screw mandrel 502, bottom slide bar 503 and bottom support plate 504, the top of screw mandrel 502 is longitudinally regulated to be connected with bottom support plate 504 by bearing, longitudinally regulate screw mandrel 502 and the nut engaged transmission on support 1, upper end and the bottom support plate 504 of described bottom slide bar 503 are connected, and two bottom slide bars 503 are symmetrical arranged about longitudinally regulating screw mandrel 502; Bottom handwheel 501 is fixed on and longitudinally regulates screw mandrel 502 bottom, longitudinally regulates screw mandrel 502 for driving.Described bottom support plate 504 is provided with circular sleeve column, and this circular sleeve column can engage with the opening of water heater liner, has axial certralizing ability.When utilizing bottom handwheel 501 to drive bottom support plate 504 to move up and down, in order to prevent longitudinally regulating screw mandrel 502 deflection, bottom slide bar 503 is symmetrical arranged about longitudinally regulating screw mandrel 502, bottom this, slide bar 503 can slide in the lasso in support 1, realizes the firm effect longitudinally regulating screw mandrel 502.
In use, by the horizontal spacing between the adjustable centering assembly 4 of sidepiece handwheel 201, by the height of bottom handwheel 501 adjustable bottom support plate 504, and then the spot welding of the water heater liner that can adapt to different size is located, easy to use.When processing the water heater liner of same model, only sidepiece handwheel 201 and bottom handwheel 501 need be regulated when using first, without the need to again regulating during following process.
Embodiment 2
Composition graphs 2, a kind of water heater liner apparatus for welding and positioning of the present embodiment, it is identical with embodiment 1 that it connects this structure, and its difference is: support 1 top in the present embodiment is provided with top cross-bar 102, and top cross-bar 102 is provided with top hold down gag.This top hold down gag comprises longitudinally compression hydraulic cylinder 601, top slide bar 602, top fixing plate 603 and top gland 604, longitudinally compress hydraulic cylinder 601 to be fixedly connected with top cross-bar 102 by top fixing plate 603, the piston rod longitudinally compressing hydraulic cylinder 601 drives top gland 604 to move up and down.Two top slide bars 602 are symmetrical arranged about longitudinally compressing hydraulic cylinder 601, and top slide bar 602 and top fixing plate 603 are slidably connected, top slide bar 602 lower end is fixedly connected with top gland 604, when longitudinally compressing hydraulic cylinder 601 and driving top gland 604 to move up and down, top slide bar 602 can play axial certralizing ability.In addition, longitudinally compress hydraulic cylinder 601 and longitudinally regulate screw mandrel 502 coaxially to arrange, guaranteeing that water heater liner upper shell and lower shell are installed with one heart.
Set top hold down gag can ensure the concentricity of water heater liner upper shell and lower shell on the one hand, can play pressuring action on the other hand, reduces the weld seam between upper shell and lower shell, improves product quality.
Embodiment 3
A kind of water heater liner apparatus for welding and positioning of the present embodiment, it is identical with embodiment 2 that it connects this structure, and its difference is: each centering collar 404 is arranged at intervals with 2 some weld bonds 405 in the present embodiment.
According to embodiment 1 ~ 3, for apparatus for welding and positioning of the present invention, when specifically using, its process is as follows:
Step one, height according to water heater liner upper shell, then rotate bottom handwheel 501, regulates the height of bottom support plate 504 corresponding with the height of water heater liner upper shell; Rotate sidepiece handwheel 201 and regulate the horizontal spacing of feeling relieved between assembly 4, to adapt to the size of water heater liner;
Step 2, to be tipped upside down on by water heater liner upper shell on the support plate 504 of bottom, the opening of water heater liner engage with circular sleeve column, and axis is felt relieved, and the water inlet on water heater liner aligns with the first backstay 403, is convenient to follow-up contraposition;
Step 3, startup transverse hydraulic cylinder 304, transverse hydraulic cylinder 304 drives the centering collar 404 to the motion of water heater liner direction, and by water heater liner upper shell pretension;
Step 4, the delivery port of lower shell, sewage draining exit respectively with the second backstay the 407, the 3rd backstay 408 to be alignd, water inlet, delivery port and sewage draining exit are located on the same line, again start transverse hydraulic cylinder 304, locating convex block 406 is engaged with detent, and upper shell and lower shell are by radial centering;
Step 5, startup longitudinally compress hydraulic cylinder 601, make top gland 604 push down the bottom of lower shell, and to reduce the gap between upper shell and lower shell, the weld seam formed during spot welding location is less, is convenient to follow-up welding;
Step 6, carry out spot welding at each point weld bond 405, complete spot welding positioning work.
The present invention improves point quality by longitudinally compressing with horizontal centering, and welding efficiency is high, is applicable to the tack-weld of different size water heater liner, applied widely.
Schematically above be described the present invention and embodiment thereof, this description does not have restricted, and also just one of the embodiments of the present invention shown in accompanying drawing, actual structure is not limited thereto.So, if those of ordinary skill in the art enlightens by it, when not departing from the invention aim, designing the frame mode similar to this technical scheme and embodiment without creationary, all should protection scope of the present invention be belonged to.
Claims (9)
1. a water heater liner apparatus for welding and positioning, it is characterized in that: comprise support (1), be arranged on the clamping device of support (1) both sides and the brace table between two clamping devices, described clamping device comprises line slide rail assembly (2), hold down assembly (3) and feel relieved assembly (4), described line slide rail assembly (2) is arranged on support (1), hold down assembly in (3) and be provided with slide rail connecting plate (301), this slide rail connecting plate (301) is slidably connected with the first slide rail (204) in line slide rail assembly (2), described centering assembly (4) is slidably connected with hold down assembly (3), and the centering assembly (4) being controlled brace table both sides by hold down assembly (3) is engaged mutually.
2. a kind of water heater liner apparatus for welding and positioning according to claim 1, it is characterized in that: described hold down assembly (3) also comprise the second slide rail (302), hydraulic cylinder bearing (303) and transverse hydraulic cylinder (304), described second slide rail (302), hydraulic cylinder bearing (303) are all fixedly connected with slide rail connecting plate (301), and hydraulic cylinder bearing (303) is positioned between two the second slide rails (302) be arranged in parallel; Described transverse hydraulic cylinder (304) is fixed on hydraulic cylinder bearing (303), promotes centering assembly (4) in the upper slip of the second slide rail (302) by the horizontal piston rod (305) in transverse hydraulic cylinder (304).
3. a kind of water heater liner apparatus for welding and positioning according to claim 1, it is characterized in that: described line slide rail assembly (2) forms primarily of sidepiece handwheel (201), feed screw (202) and pair of nut (203), described feed screw (202) is supported by two bearing blocks be fixed on workbench (101), and feed screw (202) outer end and sidepiece handwheel (201) are connected; Described pair of nut (203) is fixed on slide rail connecting plate (301) lower end, and pair of nut (203) and feed screw (202) engaged transmission.
4. a kind of water heater liner apparatus for welding and positioning according to any one of claim 1 to 3, it is characterized in that: described centering assembly (4) comprises centering slide block (401), centering bearing (402), backstay and the centering collar (404), described centering slide block (401) is arranged on centering bearing (402) below, and centering slide block (401) and the second slide rail (302) are slidably connected; Described backstay, the centering collar (404) are horizontally installed on centering bearing (402) side.
5. a kind of water heater liner apparatus for welding and positioning according to claim 4, it is characterized in that: the described centering collar (404) is arranged at intervals with 2 ~ 4 some weld bonds (405), detent is provided with at the end face of the centering collar (404) of workbench (101) side, be provided with locating convex block (406) at the end face of the centering collar (404) of workbench (101) opposite side, during two the centering collar (404) engagings, locating convex block (406) is positioned at detent.
6. want a kind of water heater liner apparatus for welding and positioning described in 5 according to right, it is characterized in that: described brace table comprises bottom handwheel (501), longitudinally regulate screw mandrel (502), bottom slide bar (503) and bottom support plate (504), described longitudinal direction regulates the top of screw mandrel (502) to be connected with bottom support plate (504) by bearing, longitudinally regulate screw mandrel (502) and the nut engaged transmission on support (1), upper end and the bottom support plate (504) of described bottom slide bar (503) are connected, and two bottoms slide bar (503) are about longitudinally regulating screw mandrel (502) to be symmetrical arranged, described bottom handwheel (501) is fixed on and longitudinally regulates screw mandrel (502) bottom.
7. a kind of water heater liner apparatus for welding and positioning according to claim 6, is characterized in that: described support (1) top is provided with top cross-bar (102), top cross-bar (102) is provided with top hold down gag.
8. a kind of water heater liner apparatus for welding and positioning according to claim 7, it is characterized in that: described top hold down gag comprises longitudinal direction and compresses hydraulic cylinder (601) and top gland (604), described longitudinal direction compresses hydraulic cylinder (601) and is fixedly connected with top cross-bar (102), and the piston rod longitudinally compressing hydraulic cylinder (601) drives top gland (604) to move up and down.
9. a kind of water heater liner apparatus for welding and positioning according to claim 8, is characterized in that: described longitudinal direction compresses hydraulic cylinder (601) and longitudinally regulates screw mandrel (502) coaxially to arrange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510426759.0A CN104959772B (en) | 2015-07-17 | 2015-07-17 | A kind of water heater liner apparatus for welding and positioning |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510426759.0A CN104959772B (en) | 2015-07-17 | 2015-07-17 | A kind of water heater liner apparatus for welding and positioning |
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| CN104959772A true CN104959772A (en) | 2015-10-07 |
| CN104959772B CN104959772B (en) | 2016-07-27 |
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| CN201510426759.0A Active CN104959772B (en) | 2015-07-17 | 2015-07-17 | A kind of water heater liner apparatus for welding and positioning |
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| CN109317848A (en) * | 2018-11-12 | 2019-02-12 | 芜湖市星东塑胶模具制品有限公司 | A kind of air-suction silencer of compressor welder |
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| CN112059507A (en) * | 2020-09-17 | 2020-12-11 | 十堰翊鹏工贸有限公司 | Welding positioning device for automobile front cross beam |
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| CN109605760A (en) * | 2018-11-12 | 2019-04-12 | 芜湖市星东塑胶模具制品有限公司 | A kind of silencer pressing device |
| CN112059507A (en) * | 2020-09-17 | 2020-12-11 | 十堰翊鹏工贸有限公司 | Welding positioning device for automobile front cross beam |
| CN112059507B (en) * | 2020-09-17 | 2022-06-21 | 翊鹏(湖北)实业有限公司 | Welding positioning device for automobile front cross beam |
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| CN104959772B (en) | 2016-07-27 |
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