CN210281180U - General welding frock of thin wall shield cover - Google Patents
General welding frock of thin wall shield cover Download PDFInfo
- Publication number
- CN210281180U CN210281180U CN201920793190.5U CN201920793190U CN210281180U CN 210281180 U CN210281180 U CN 210281180U CN 201920793190 U CN201920793190 U CN 201920793190U CN 210281180 U CN210281180 U CN 210281180U
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- China
- Prior art keywords
- cover
- guide screw
- demoulding
- screw rod
- wall
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- Expired - Fee Related
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Abstract
The utility model provides a general welding frock of thin wall shield cover, includes: a guide screw, a positioning nut, a demoulding cover, a demoulding device and a plug mould. The demoulding cover and the demoulding device are welded into a whole, the demoulding cover is provided with a central through hole, the guide screw rod is a rod piece processed with external threads, the positioning nut is connected with the guide screw rod through threads, and one end of the guide screw rod sequentially penetrates through the positioning nut and the central through hole of the demoulding cover to be fixedly connected with the plug mould; the outer wall of the ejector is in clearance fit with the inner wall of the plug die, and the ejector and the plug die can move relatively along the axial direction of the guide screw. The welding shielding cover of the utility model can be accurately positioned, and simultaneously, the problems of deformation and damage of the shielding cover and the inflow of welding flux into a welding seam are avoided, and the product quality is improved; all parts are conventional parts, specially-made parts are not needed, the maintenance and replacement are convenient, and the production cost is greatly reduced; the tool is suitable for various working environments, can still well operate under complex working conditions, and is high in operability.
Description
Technical Field
The utility model relates to a general welding frock of thin wall shield cover belongs to welding frock technical field.
Background
The aerospace electronic components are core parts of the manned aerospace control system, and the quality, safety and reliability of the aerospace electronic components are related to the operation of the whole manned aerospace system. In order to protect aerospace electronic components better, designers often add shielding cases outside aerospace electronic components, and aerospace electronic components also play a role in shielding electromagnetic waves.
In order to improve the space utilization rate and reduce the weight, the shielding cover of the aerospace electronic component is mostly of a thin-wall structure, the shielding cover welded by using a traditional welding method is easy to deform and difficult to correct, and even if the correction is successful, the inner welding seam of the shielding cover cannot be cleaned, so that the shielding cover is scrapped in large quantities, and the delivery period is delayed.
In the prior art, the conventional welding method for the thin-wall shielding case mainly has the following problems: 1) the traditional welding method is low in welding efficiency and is not suitable for mass production; 2) by using the traditional welding method, the welding deformation is large, and the one-time qualification rate of the product is low; 3) when the traditional welding method is used, metal melts and flows into the thin-wall shielding case during welding, an inner welding line needs to be cleaned, the cleaning method is improper or not clean, products are easily damaged or components cannot be installed, and the rejection rate of the products is high; 4) the traditional welding method has many unsafe factors and is easy to cause personal injury.
SUMMERY OF THE UTILITY MODEL
The technical solution problem of the utility model is that: overcome prior art's not enough, the utility model provides a general welding frock of thin wall shield cover can solve thin wall shield cover location difficult, welding back shield cover yielding, vulnerable, the difficult technical problem who clears up of interior welding seam in the shield cover.
The technical scheme of the utility model is that:
the utility model provides a general welding frock of thin wall shield cover, includes: a guide screw, an adjusting and positioning nut, a demoulding cover, a demoulding device and a plug mould;
the demoulding cover and the demoulding device are welded into a whole, the demoulding cover is provided with a central through hole, the guide screw rod is a rod piece processed with external threads, the adjusting and positioning nut is connected with the guide screw rod through threads, and one end of the guide screw rod sequentially penetrates through the adjusting and positioning nut and the central through hole of the demoulding cover to be fixedly connected with the plug die;
the outer wall of the ejector is in clearance fit with the inner wall of the plug die, and the ejector and the plug die can move relatively along the axial direction of the guide screw; the outer wall of the plug die is matched with the inner wall of the shielding case in size.
The plug die is a cuboid, and the plug die is connected with the guide screw rod through threads.
And the end surface of the ejector is provided with a notch matched with the support lug of the shielding cover.
The aperture of the central through hole of the demoulding cover is larger than the major diameter of the external thread of the guide screw and smaller than the flat size of the adjusting positioning nut.
The size of the cross section of the demoulding cover is matched with that of the cross section of the demoulding device, and the welding surface of the demoulding cover and the welding surface of the demoulding device are in smooth transition.
The length of four edges of the plug die parallel to the axial direction of the guide screw is greater than the length of the other eight edges.
Compared with the prior art, the utility model beneficial effect be:
1. the utility model ensures that the positioning nut can adjust the position of the nut at will according to the requirement of an operator by matching the guide screw rod with the positioning nut, and solves the technical problem of difficult positioning of the welding thin-wall shielding case;
2. the utility model adopts a square structure, the plug mould and the shielding cover adopt small clearance fit, the shielding cover and the plug mould are tightly attached during welding, the technical problem that the inner welding seam in the thin-wall shielding cover is difficult to clean when metal melts and flows during welding is solved, and the product quality is improved; the upper end face of the plug die is provided with a threaded hole, so that the integrity of the guide screw of the plug die is ensured;
3. the utility model adopts a hollow thin-wall structure, the size of the inner frame of the demoulding device is in clearance fit with the shielding cover, the shielding cover and the plug die are quickly dropped off after welding, the shielding cover is prevented from being knocked by a mechanical method to be separated from the plug die to damage products, and the technical problem that the shielding cover is easy to deform and damage after welding is solved;
4. the utility model is provided with a gap matched with the two bulges on the shielding cover in the middle of the lower sides of the two parallel surfaces of the demoulding device, thereby protecting the support lugs of the shielding cover and reserving enough space for the two support lugs of the shielding cover when the shielding cover falls off from the plug mould;
5. the demoulding cover of the utility model is of a square plate structure, the external dimension of the demoulding cover is consistent with that of the demoulding device, the whole dimension of the demoulding cover and the demoulding device during welding is ensured, the demoulding cover and the demoulding device are integrated after welding, and the difficult problems of difficult processing and material cost of the tool are solved; the size of the hole in the demoulding cover is larger than that of the threaded hole of the guide screw, so that the demoulding cover and the demoulding device can quickly move up and down along the guide screw;
6. the components of the utility model are conventional parts, which is not specially made and is convenient for maintenance and replacement, thereby greatly reducing the production cost;
7. the utility model has the advantages that the whole structure is compact, is applicable to multiple operational environment, still can good operation, maneuverability is strong under complicated operating mode.
Drawings
FIG. 1 is a schematic view of the present invention;
fig. 2 is a schematic structural view of a thin-wall shield.
Detailed Description
The shield to be welded is in a thin plate structure before being welded and formed, and a thin-wall shield with an opening at one side is formed by welding 4 edges, as shown in fig. 2.
The invention will be further described with reference to the following description and specific examples, taken in conjunction with the accompanying drawings:
as shown in fig. 1, a general welding fixture for a thin-wall shielding case includes: the device comprises a guide screw rod 1, an adjusting and positioning nut 2, a demoulding cover 3, a demoulding device 4 and a plug mould 5. The demoulding cover 3 and the demoulding device 4 are welded into a whole, the demoulding cover 3 is provided with a central through hole, the guide screw rod 1 is a rod piece processed with external threads, the adjusting and positioning nut 2 is a hexagon nut, and a threaded hole used for connecting the guide screw rod 1 is formed in the hexagon nut; the adjusting and positioning nut 2 is connected with the guide screw rod 1 through threads, and one end of the guide screw rod 1 sequentially penetrates through the adjusting and positioning nut 2 and a central through hole of the demoulding cover 3 to be fixedly connected with the plug mould 5; the outer wall of the ejector 4 is in clearance fit with the inner wall of the plug die 5, and the ejector 4 and the plug die 5 can move relatively along the axial direction of the guide screw rod 1; the outer wall of the plug die 5 is matched with the inner wall of the shielding case in size. The other end of the guide screw rod 1 is provided with a step shaft as a large cylindrical end, and the outer diameter of the step shaft is larger than the large diameter of the external thread.
The plug die 5 is a cuboid, so that the shielding case is tightly attached to the plug die 5 during welding, the technical problem that the inner welding seam of the thin-wall shielding case is difficult to clean when metal melts and flows into the thin-wall shielding case during welding is solved, and the product quality is improved; the plug die 5 is in threaded connection with the guide screw rod 1, and integrity of the plug die and the guide screw rod is guaranteed. The length of four edges of the plug die 5 parallel to the axial direction of the guide screw rod 1 is larger than the length of the other eight edges.
The end face of the ejector 4 is provided with a notch matched with the support lug of the shielding cover, the support lug of the shielding cover is protected, and enough space is reserved for the two support lugs of the shielding cover when the shielding cover falls off from the plug mold 5.
The aperture of the central through hole of the demoulding cover 3 is larger than the major diameter of the external thread of the guide screw rod 1 and smaller than the flat size of the adjusting and positioning nut 2.
The sectional dimension of the demoulding cover 3 is matched with that of the demoulding device 4, and the welding surface of the demoulding cover 3 and the demoulding device 4 is in smooth transition.
Firstly, the adjusting and positioning nut 2 is connected with the guide screw rod 1, then the welded demoulding cover 3 and the demoulding device 4 are connected with the guide screw rod 1, and finally the plug mould 5 is screwed on the guide screw rod 1.
The guide screw rod 1 is matched with the adjusting and positioning nut 2, so that the adjusting and positioning nut 2 can be adjusted randomly according to the requirement of an operator, and the technical problem of difficult positioning of the welding thin-wall shielding case is solved; the plug die 5 and the shielding cover are in small clearance fit, so that the shielding cover and the plug die 5 are tightly attached during welding, and the technical problem that the inner welding seam of the thin-wall shielding cover is difficult to clean when metal melts and flows into the thin-wall shielding cover during welding is solved; the upper end face of the plug die 5 is provided with a threaded hole, so that the integrity of the plug die 5 and the guide screw rod 1 is ensured; the size of the inner frame of the stripper 4 is in clearance fit with the shielding cover, so that the shielding cover and the plug die 5 are quickly separated after welding, the shielding cover is prevented from being knocked by a mechanical method to be separated from the plug die 5 to damage a product, and the technical problem that the shielding cover is easy to deform and damage after welding is solved; notches matched with the two bulges on the shielding cover are arranged in the middle of the lower sides of the two parallel surfaces of the stripper 4, so that enough space is reserved for the two lugs of the shielding cover when the shielding cover falls off from the plug die 5, and the supporting lugs of the shielding cover are protected; the overall dimension of the demoulding cover 3 is consistent with that of the demoulding device 4, so that the overall dimension of the demoulding cover 3 and the demoulding device 4 during welding is ensured, the demoulding cover 3 and the demoulding device 4 are integrated after welding, and the problems of difficult processing and material cost of a tool are solved.
The utility model discloses a theory of operation is:
the demoulding cover 3 and the demoulding device 4 are welded into a whole, the adjusting positioning nut 2 is connected with the guide screw rod 1, then the demoulding cover 3 and the demoulding device 4 which are welded together are connected with the guide screw rod 1, and finally the plug mould 5 is screwed on the guide screw rod 1. Before welding the shielding case, the adjusting and positioning nut 2 is screwed to the large cylindrical end of the guide screw rod 1 by hand, the shielding case is sleeved on the plug die 5 for welding, after the shielding case is cooled after welding, a hexagonal wrench is used for applying torque on the adjusting and positioning nut 2, under the action of the adjusting and positioning nut 2, the demolding cover 3 and the demolding device 4 advance along the guide screw rod 1 until the demolding device 4 is in contact with the thin wall of the shielding case, and under the action of screwing force, the shielding case is separated from the plug die 5. In one embodiment, the welded thin-walled shield structure of the present invention is 20mm 15mm 25 mm.
Those skilled in the art will appreciate that the details of the present invention not described in detail herein are well within the skill of those skilled in the art.
Claims (6)
1. The utility model provides a general welding frock of thin wall shield cover which characterized in that includes: the device comprises a guide screw rod (1), an adjusting and positioning nut (2), a demoulding cover (3), a demoulding device (4) and a plug mould (5);
the demolding cover (3) and the demolding device (4) are welded into a whole, a central through hole is formed in the demolding cover (3), the guide screw (1) is a rod piece with an external thread, the adjusting and positioning nut (2) is connected with the guide screw (1) through a thread, and one end of the guide screw (1) sequentially penetrates through the adjusting and positioning nut (2) and the central through hole of the demolding cover (3) to be fixedly connected with the plug mold (5);
the outer wall of the ejector (4) is in clearance fit with the inner wall of the plug die (5), and the ejector (4) and the plug die (5) can move relatively along the axial direction of the guide screw (1);
the outer wall of the plug die (5) is matched with the inner wall of the shielding case in size.
2. The general welding frock of thin wall shield cover of claim 1, its characterized in that: the plug die (5) is a cuboid, and the plug die (5) is connected with the guide screw rod (1) through threads.
3. The general welding frock of thin wall shield cover of claim 2, its characterized in that: and the end surface of the ejector (4) is provided with a notch matched with the support lug of the shielding cover.
4. The general welding frock of thin wall shield cover of claim 2 ~ 3, its characterized in that: the aperture of the central through hole of the demoulding cover (3) is larger than the major diameter of the external thread of the guide screw rod (1) and smaller than the flat size of the adjusting and positioning nut (2).
5. The general welding frock of thin wall shield cover of claim 4, its characterized in that: the section size of the demolding cover (3) is matched with that of the demolding device (4), and the welding surface of the demolding cover (3) and the demolding device (4) is in smooth transition.
6. The universal welding tool for the thin-wall shielding case according to claim 5, characterized in that: the length of four edges of the plug die (5) parallel to the axial direction of the guide screw rod (1) is greater than the length of the other eight edges.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920793190.5U CN210281180U (en) | 2019-05-29 | 2019-05-29 | General welding frock of thin wall shield cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920793190.5U CN210281180U (en) | 2019-05-29 | 2019-05-29 | General welding frock of thin wall shield cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210281180U true CN210281180U (en) | 2020-04-10 |
Family
ID=70072146
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920793190.5U Expired - Fee Related CN210281180U (en) | 2019-05-29 | 2019-05-29 | General welding frock of thin wall shield cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210281180U (en) |
-
2019
- 2019-05-29 CN CN201920793190.5U patent/CN210281180U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200410 Termination date: 20210529 |
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| CF01 | Termination of patent right due to non-payment of annual fee |