CN221019092U - Electron beam welding fixture for aluminum alloy heat exchanger assembly - Google Patents
Electron beam welding fixture for aluminum alloy heat exchanger assembly Download PDFInfo
- Publication number
- CN221019092U CN221019092U CN202322757193.2U CN202322757193U CN221019092U CN 221019092 U CN221019092 U CN 221019092U CN 202322757193 U CN202322757193 U CN 202322757193U CN 221019092 U CN221019092 U CN 221019092U
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- Prior art keywords
- electron beam
- positioning
- beam welding
- heat exchanger
- aluminum alloy
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- 238000003466 welding Methods 0.000 title claims abstract description 87
- 238000010894 electron beam technology Methods 0.000 title claims abstract description 41
- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 21
- 230000007246 mechanism Effects 0.000 claims abstract description 18
- 230000001681 protective effect Effects 0.000 claims description 6
- 238000007688 edging Methods 0.000 claims description 4
- 230000000712 assembly Effects 0.000 abstract description 7
- 238000000429 assembly Methods 0.000 abstract description 7
- 238000009434 installation Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 210000005056 cell body Anatomy 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 238000010923 batch production Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 238000005219 brazing Methods 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
Landscapes
- Welding Or Cutting Using Electron Beams (AREA)
Abstract
The utility model discloses an electron beam welding fixture for an aluminum alloy heat exchanger component, which comprises a rotary workbench and a plurality of fixtures for fixing the component, wherein the rotary workbench is rotatably arranged in welding equipment, an electron beam welding head is arranged above the rotary workbench, the fixtures are detachably arranged on the rotary workbench at equal intervals in a circular shape, the rotary workbench is provided with a plurality of positioning mechanisms corresponding to the fixtures one by one, and the fixtures are detachably fixed on the rotary workbench through the positioning mechanisms. According to the utility model, the plurality of clamps are arranged on the rotatable rotary workbench, so that the welding work of a plurality of assemblies is finished by one-time vacuumizing, and the welding efficiency of batch assemblies is improved.
Description
Technical Field
The utility model relates to the field of electron beam welding processing, in particular to an electron beam welding fixture for an aluminum alloy heat exchanger component.
Background
The heat exchanger is a device for transferring part of heat of hot fluid to cold fluid, wherein a welding process is generally used in the industrial production of the aluminum alloy heat exchanger, and the common welding process of the aluminum alloy heat exchanger comprises argon arc welding, brazing, electron beam welding and the like, wherein the electron beam welding is to impact the surface of a heat exchanger component by utilizing focused electron beam to melt the component to realize welding in a vacuum environment, and has the advantages of strong penetrating capacity, small heat input amount, high welding speed, high welding seam purity under the vacuum condition and small welding deformation and residual stress.
The existing electron beam welding aluminum alloy heat exchanger assembly process needs to install and remove assemblies from fixtures in the welding process, and vacuumizing operation is needed when each time of welding, but the existing fixture usually only can install and fix one assembly at each time, so that the times of vacuumizing in welding equipment in production are more, and therefore, the welding efficiency of batch assemblies is lower; meanwhile, in order to facilitate numerical control programming of the welding equipment to realize automation of welding, when the components are mounted on the clamp, the same position of each component is required to be ensured as much as possible when the components are located in a welding area, the existing electron beam welding clamp is usually directly fixed in the welding equipment and is not replaceable, in order to enable the clamp to meet clamping fixation of the components with different specifications, the clamp is usually adjustable, the positions of the components are required to be manually adjusted and positioned when the components are mounted, and then the components are fixed through the clamp, because the accuracy of manual operation is difficult to ensure, the repeated positioning accuracy is lower, and the inconvenience of numerical control programming is caused.
Disclosure of utility model
The utility model aims to provide an electron beam welding fixture for an aluminum alloy heat exchanger assembly, which realizes the welding work of a plurality of assemblies by arranging a plurality of fixtures on a rotatable rotary workbench, thereby improving the welding efficiency of batch assemblies.
The utility model solves the problems by adopting the following technical scheme:
The utility model provides an aluminum alloy heat exchanger subassembly electron beam welding frock clamp, includes rotary table and a plurality of anchor clamps that are used for the subassembly to be fixed, the rotary table rotate and set up in welding equipment, the top of rotary table is provided with the electron beam welding head, a plurality of anchor clamps be circular equidistant demountable installation on the rotary table, be provided with a plurality of positioning mechanism with anchor clamps one-to-one on the rotary table, the anchor clamps pass through positioning mechanism demountable fixation on the rotary table.
In the above technical solution, preferably, a protective cover is fixed at the head end of the electron beam welding head through a locking jackscrew.
Among the above-mentioned technical scheme, preferably, positioning mechanism include cell body, locating pin and locating piece, the cell body offer on the rotary table, the cell body is the T type, be provided with three with the cell body cooperation gliding nut that is the T type in the cell body, the locating pin peg graft on the rotary table, the side of locating pin is provided with and is planar edging, the locating piece support on edging and the locating piece pass through the bolt fastening on one of them nut, the anchor clamps support on the locating piece and the anchor clamps pass through the bolt fastening on remaining two nuts.
In the above technical solution, preferably, two first positioning keys are provided at the bottom of the positioning block, and the nut is inserted between the two first positioning keys and abuts against the side surfaces of the two first positioning keys.
In the above technical solution, preferably, three second positioning keys are provided at the bottom of the fixture, and the two nuts are respectively located between two adjacent second positioning keys.
In the above technical scheme, preferably, the upper end face of the clamp is provided with a positioning groove for assembly matching and inserting.
Compared with the prior art, the utility model has the following advantages and effects:
(1) According to the utility model, the plurality of clamps are arranged on the rotary workbench, the components fixed on each clamp are sequentially moved to the welding area below the electron beam welding head through the rotation of the rotary workbench, and then the components in the welding area are subjected to electron beam welding through the electron beam welding head, so that the welding equipment can realize one-time vacuumizing in the welding equipment to finish the welding work of the plurality of components, reduce the times of vacuumizing in the production of the welding equipment, improve the welding efficiency of batch components, reduce the welding cost of single components and be suitable for batch production;
(2) Each clamp is detachably mounted on the rotary workbench through a positioning mechanism, the positioning mechanism can improve the accuracy of the mounting position of the clamp, the consistency of the positions of the clamps when each clamp moves to a welding area is guaranteed, the repeated positioning accuracy is higher, numerical control programming of welding equipment is facilitated, the electron beam can accurately act on the area needing to be welded on each assembly, the consistency of the welding area after welding of batch assemblies is improved, and the yield of assembly production is improved.
Drawings
Fig. 1 is a schematic structural diagram of an electron beam welding fixture for an aluminum alloy heat exchanger assembly according to an embodiment of the utility model.
Fig. 2 is a schematic view of the structure of the head end of the electron beam welding head of fig. 1.
Fig. 3 is a schematic view of a vertical cross-section of the clamp of fig. 1 in position.
Fig. 4 is a schematic bottom view of the clamp of fig. 1.
Fig. 5 is a schematic top view of the clamp of fig. 1.
The device comprises a rotary workbench 1, a clamp 2, an assembly 3, an electron beam welding head 4, a protective cover 41, a positioning mechanism 5, a groove body 51, a positioning pin 52, a positioning block 53, a nut 54, a trimming 55, a first positioning key 56, a second positioning key 57, a positioning groove 58 and a clearance hole 59.
Detailed Description
The present utility model will be described in further detail by way of examples with reference to the accompanying drawings, which are illustrative of the present utility model and not limited to the following examples.
Referring to fig. 1-5, the electron beam welding fixture for the aluminum alloy heat exchanger component of the embodiment comprises a rotary table 1 and a plurality of fixtures 2 for fixing the component 3, wherein the rotary table 1 is rotatably arranged in welding equipment, an electron beam welding head 4 is arranged above the rotary table 1, the fixtures 2 are detachably arranged on the rotary table 1 at equal intervals in a circular shape, a plurality of positioning mechanisms 5 corresponding to the fixtures 2 one by one are arranged on the rotary table 1, and the fixtures 2 are detachably fixed on the rotary table 1 through the positioning mechanisms 5.
According to the utility model, the plurality of clamps 2 (the number of the clamps 2 is eight in the embodiment) are arranged on the rotary table 1, the components 3 fixed on each clamp 2 are sequentially moved to a welding area below the electron beam welding head 4 through the rotation of the rotary table 1 (the rotary table 1 is driven to rotate by a driving device such as a stepping motor) and then the electron beam welding is carried out on the components 3 in the welding area through the electron beam welding head 4, so that the welding work of the plurality of components 3 can be completed by one-time vacuumizing in the welding equipment, the times of vacuumizing the welding equipment in production are reduced, the welding efficiency of batches of the components 3 is improved, the welding cost of single components 3 is reduced, and the welding equipment is suitable for batch production;
In this embodiment, since the fixture 2 can be manufactured according to the parameter specification of the component 3, the fixture 2 and the component 3 have better suitability, and accurate installation between the component 3 and the fixture 2 can be easily realized, so in the utility model, only the accuracy of the installation position of the fixture 2 is guaranteed, and each fixture 2 is detachably installed on the rotary workbench 1 through the positioning mechanism 5, the positioning mechanism 5 can improve the accuracy of the installation position of the fixture 2, ensure the consistency of the positions of the fixtures 2 when each fixture 2 moves to the welding area, have higher repeated positioning accuracy, thereby facilitating numerical control programming of the welding equipment, ensuring that the electron beam can accurately act on the area to be welded on each component 3, improving the consistency of the welding area after the batch of components 3 are welded, and improving the yield of the production of the components 3.
Referring to fig. 2, the head end of the electron beam welding head 4 is fixed with a protective cover 41 through a locking jackscrew.
The heat exchanger is usually made of metal materials, stainless steel, carbon steel, copper, aluminum, titanium, nickel and the like are usually adopted, and the heat exchanger made of aluminum alloy is low in boiling point (about 2400 ℃) of aluminum alloy, and high in temperature (usually more than 3500 ℃) of welding spots during electron beam welding, so that a large amount of metal vapor is usually generated during welding the aluminum alloy heat exchanger by the electron beam welding mode, and the metal vapor easily enters the electron gun to cause discharge of the electron gun, so that problems such as concave, shrinkage cavity, unfused and even crack defects are caused.
In the utility model, the detachable protective cover 41 is arranged at the head end of the electron beam welding head 4, so that metal vapor can be effectively prevented from entering the electron gun, the discharge times are reduced, and the welding quality is improved.
Referring to fig. 1 and 3, the positioning mechanism 5 includes a groove 51, a positioning pin 52 and a positioning block 53, the groove 51 is opened on the rotary table 1, the groove 51 is T-shaped, three T-shaped nuts 54 sliding in cooperation with the groove 51 are provided in the groove 51, the positioning pin 52 is inserted on the rotary table 1, a plane chamfered edge 55 is provided on a side surface of the positioning pin 52, the positioning block 53 abuts against the chamfered edge 55 and the positioning block 53 is fixed on one of the nuts 54 through bolts, the clamp 2 abuts against the positioning block 53 and the clamp 2 is fixed on the other two nuts 54 through bolts.
The positioning mechanism 5 is simple and convenient to operate in a positioning mode, and is convenient to install and detach the clamp 2, so that the convenience in operation is improved.
Referring to fig. 3 and 4, two first positioning keys 56 are disposed at the bottom of the positioning block 53, and the nut 54 is cooperatively inserted between the two first positioning keys 56 and abuts against the side surfaces of the two first positioning keys 56.
Because the nut 54 is attached to the groove body 51 and slides, the nut 54 is not rotatable in the groove body 51, when the positioning block 53 is clamped to the nut 54 through the two first positioning keys 56, because the first positioning keys 56 are also inserted into the groove body 51, the rotation of the positioning block 53 in the horizontal direction is limited by the interaction of the first positioning keys 56 and the groove body 51, the whole positioning block 53 and the nut 54 move along the direction of the groove body 51, so that the positioning block 53 and the nut 54 are fixed through bolts after the positioning block 53 is positioned, and meanwhile, in the embodiment, when the positioning pin 52 is inserted onto the rotary table 1, a slight direction error of the chamfered edge 55 of the positioning pin 52 can be allowed, when the positioning block 53 abuts against the chamfered edge 55, the direction of the positioning pin 52 is corrected, meanwhile, the positioning block 53 is positioned on the groove body 51, and the convenience of positioning of the positioning block 53 is improved through the first positioning keys 56.
Referring to fig. 3 and 4, three second positioning keys 57 are disposed at the bottom of the fixture 2, and the two nuts 54 are respectively located between two adjacent second positioning keys 57.
When the clamp 2 is mounted on the rotary table 1, the three second positioning keys 57 at the bottom of the clamp 2 are inserted into the groove body 51, the two nuts 54 are respectively positioned in two intervals between the three second positioning keys 57, the clamp 2 is driven to slide along the groove body 51, one end of the clamp 2 is abutted against the positioning block 53, and then the clamp 2 and the nuts 54 are fixedly connected through bolts, so that the clamp 2 is fixed, and the convenience in positioning of the clamp 2 is improved through the second positioning keys 57.
Referring to fig. 5, the upper end surface of the fixture 2 is provided with a positioning groove 58 for the assembly 3 to be inserted in a matching manner.
The specification parameters of the positioning groove 58 are matched with the specification parameters of the assembly 3, the assembly 3 is inserted into the positioning groove 58 to realize the installation and fixation between the assembly 3 and the clamp 2, and the bottom surface and the surrounding part of the side surfaces of the assembly 3 are in contact with the inner wall of the positioning groove 58, so that the assembly 3 is conveniently installed on the clamp 2, and the installation efficiency of the clamp 2 is improved.
Referring to fig. 5, in this embodiment, the positioning groove 58 is square, four clearance holes 59 are provided at four corners of the positioning groove 58, for reducing the friction force of the component 3 during ejection, and the component 3 and the fixture 2 are fixed by a plurality of bolts, so as to enhance the fixing effect.
In this embodiment, the rotary table 1, the fixture 2, the positioning mechanism 5 and the protective cover 41 are all made of 2a12 aluminum alloy materials with non-magnetic properties, linear expansion coefficients close to those of the base material, high hardness and light weight, and can meet the requirements of the fixture 2 for good rigidity and difficult deformation while meeting the requirements of the electron beam welding tool for non-magnetic properties. In addition, the material is common in the market, has good cutting processability and is convenient to manufacture.
The utility model comprises the following steps:
(1) Positioning pin 52 is installed in a counter-sunk hole of rotary table 1, chamfered edge 55 is positioned in an angle to be perpendicular to groove body 51 (a certain Xu Dingxiang error is allowed), and nut 54 is placed in groove body 51;
(2) The positioning block 53 is installed in the groove body 51, the positioning block 53 is tightly attached to the chamfered edge 55 for positioning, and then the positioning block 53 is locked with the nut 54;
(3) The clamp 2 is installed in the groove body 51, pushed to be tightly attached to the positioning block 53 for positioning, and then the clamp 2 is locked with the nut 54;
(4) The component 3 to be welded is placed in the positioning groove 58 of the clamp 2, and after positioning is confirmed, the component 3 is locked with the clamp 2 by bolts.
The foregoing description of the utility model is merely exemplary of the utility model. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions, without departing from the scope of the utility model as defined in the accompanying claims.
Claims (6)
1. An aluminum alloy heat exchanger subassembly electron beam welding frock clamp, its characterized in that: including rotary table and a plurality of anchor clamps that are used for the subassembly to be fixed, the rotary table rotate and set up in welding equipment, the top of rotary table is provided with the electron beam welding head, a plurality of anchor clamps be circular equidistant detachable and install on the rotary table, be provided with a plurality of positioning mechanism with anchor clamps one-to-one on the rotary table, anchor clamps pass through positioning mechanism detachable fixed on the rotary table.
2. The aluminum alloy heat exchanger assembly electron beam welding tooling fixture of claim 1, wherein: the head end of the electron beam welding head is fixed with a protective cover through a locking jackscrew.
3. The aluminum alloy heat exchanger assembly electron beam welding tooling fixture of claim 1, wherein: the positioning mechanism comprises a groove body, a positioning pin and a positioning block, wherein the groove body is arranged on a rotary workbench, the groove body is of a T shape, three nuts which slide in a matched manner with the groove body and are of a T shape are arranged in the groove body, the positioning pin is inserted on the rotary workbench, a plane edging is arranged on the side face of the positioning pin, the positioning block abuts against the edging and is fixed on one of the nuts through bolts, and the clamp abuts against the positioning block and is fixed on the other two nuts through bolts.
4. An aluminum alloy heat exchanger assembly electron beam welding tooling fixture as set forth in claim 3 wherein: the bottom of locating piece be provided with two first locating keys, the nut cooperation insert locate between two first locating keys and with support on the side of two first locating keys.
5. An aluminum alloy heat exchanger assembly electron beam welding tooling fixture as set forth in claim 3 wherein: the bottom of the clamp is provided with three second positioning keys, and the two nuts are respectively positioned between the two adjacent second positioning keys.
6. The aluminum alloy heat exchanger assembly electron beam welding tooling fixture of claim 1, wherein: the upper end face of the clamp is provided with a positioning groove for the assembly to be matched and inserted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322757193.2U CN221019092U (en) | 2023-10-13 | 2023-10-13 | Electron beam welding fixture for aluminum alloy heat exchanger assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322757193.2U CN221019092U (en) | 2023-10-13 | 2023-10-13 | Electron beam welding fixture for aluminum alloy heat exchanger assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221019092U true CN221019092U (en) | 2024-05-28 |
Family
ID=91174558
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322757193.2U Active CN221019092U (en) | 2023-10-13 | 2023-10-13 | Electron beam welding fixture for aluminum alloy heat exchanger assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221019092U (en) |
-
2023
- 2023-10-13 CN CN202322757193.2U patent/CN221019092U/en active Active
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