CN202622195U - Connecting structure of weldment and spot welding bolt - Google Patents
Connecting structure of weldment and spot welding bolt Download PDFInfo
- Publication number
- CN202622195U CN202622195U CN 201220235877 CN201220235877U CN202622195U CN 202622195 U CN202622195 U CN 202622195U CN 201220235877 CN201220235877 CN 201220235877 CN 201220235877 U CN201220235877 U CN 201220235877U CN 202622195 U CN202622195 U CN 202622195U
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- weldment
- spot welding
- hole
- welding bolt
- bolt
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- 238000003466 welding Methods 0.000 title claims abstract description 52
- 230000007704 transition Effects 0.000 claims description 6
- 241000276425 Xiphophorus maculatus Species 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000012467 final product Substances 0.000 description 2
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Abstract
The utility model discloses a connecting structure of weldment and spot welding bolt, including weldment and spot welding bolt, be provided with the through-hole on the weldment, spot welding bolt includes screw rod portion and nut portion, the outer face of cylinder of screw rod portion with the terminal surface of nut portion passes through with fillet R, the screw rod portion of spot welding bolt passes through the through-hole, the nut portion of spot welding bolt with the weldment welding; the through hole is a flanging hole with a flanging extending to the side back to the nut, and the inner wall of the through hole is transited with the surface of the weldment by a fillet r. The utility model provides a weldment and spot welding bolt's connection structure, the through-hole of weldment is the flanging hole, and the fillet R of this flanging hole has structurally avoided the fillet R of bolt, has solved the bolt problem of desoldering that leads to because of structural interference; and the aperture phi D of the through hole on the weldment can be as small as possible (the aperture phi D is slightly larger than the diameter phi D of the bolt), so that the high precision of the part is realized.
Description
Technical field
The utility model relates to mechanical connecting structure, particularly relates to the syndeton of a kind of weldment and spot welding bolt.
Background technology
At present, in mechanical field, go up welding spot welding bolt at support (hereinafter to be referred as weldment) usually and fix parts (like compressor etc.).On weldment during the spot welding bolt, need on weldment through hole in advance, that is: adopt through-hole structure spot welding bolt on the weldment.Because the threaded shank of bolt and the intermediate location of nut portion have fillet R (as shown in Figure 1), and the too small meeting of this fillet causes the bolt stress raisers and cause head to rupture, so fillet R is bigger generally speaking.At the internal orifice dimension Φ of through hole D hour, when this fillet R can cause spot welding because of the constructive interference sealing-off, and if increase the aperture Φ D of through hole, then can influence element precision.
Summary of the invention
To above-mentioned prior art present situation, the utility model technical problem to be solved is, the syndeton of a kind of weldment and spot welding bolt is provided, and it can guarantee precision, can solve the problem of spot welding sealing-off again.
The utility model solves the problems of the technologies described above the technical scheme that is adopted: the syndeton of a kind of weldment and spot welding bolt; Comprise weldment and spot welding bolt; Said weldment is provided with through hole, and said spot welding bolt comprises threaded shank and nut portion, and the end face of the external cylindrical surface of said threaded shank and said nut portion is with fillet R transition; The threaded shank of said spot welding bolt is passed said through hole, the nut portion of said spot welding bolt and the welding of said weldment; Said through hole is a flange to the flange hole of extending back to said nut portion side, and the surface of the inwall of said through hole and said weldment is with fillet r transition.
Among embodiment, the radius of said fillet R equals the radius of said fillet r therein.
Among embodiment, the bearing of trend of said flange is parallel with the centerline direction of said through hole therein.
Among embodiment, the aperture Φ D of said through hole is than the big 0.3mm to 4mm of external diameter Φ d of said threaded shank therein.
Among embodiment, the height H of said flange is 2mm to 30mm therein.
Among embodiment, said nut portion and said weldment facing surfaces are provided with positioning convex and the detent that matches therein.
Therein among embodiment, said positioning convex is arranged in the said nut portion, and said detent is arranged on the said weldment.
Among embodiment, said threaded shank is a ledge structure therein, and it comprises the anterior reduced diameter section and the enlarged diameter section at rear portion, and the external cylindrical surface of said reduced diameter section is provided with screw thread.
Among embodiment, said weldment is a platy structure therein.
Compared with prior art, the syndeton of weldment that the utility model provided and spot welding bolt, the through hole of weldment is the flange hole, has avoided the fillet R of bolt on the fillet r structure in this flange hole, has solved the bolt sealing-off problem that causes because of constructive interference; And the aperture Φ D of through hole can as far as possible little (getting final product slightly greatly than diameter of bolt Φ d) on the weldment, realized the high accuracy of part.
This shows that the utility model can effectively solve the sealing-off problem of spot welding bolt, realize the high accuracy of part simultaneously.
Description of drawings
Fig. 1 is the syndeton sketch map of existing weldment and spot welding bolt;
Fig. 2 is weldment and the structural representation of spot welding bolt among one of them embodiment of the utility model;
Fig. 3 is a weldment shown in Figure 2 and the sketch map that is connected of spot welding bolt.
More than each figure in, 100-weldment, 110-through hole, 111-flange, 200-spot welding bolt, 210-threaded shank, 211-reduced diameter section, 212-enlarged diameter section, 220-nut portion, 221-positioning convex.
The specific embodiment
Below with reference to accompanying drawing and combine embodiment that the utility model is elaborated.Need to prove, under the situation of not conflicting, below characteristic among each embodiment and the embodiment can make up each other.
Referring to Fig. 2 and Fig. 3; The weldment among one of them embodiment of the utility model and the syndeton of spot welding bolt; Comprise weldment 100 and spot welding bolt 200; Said weldment 100 is provided with through hole 110, and said through hole 110 is a flange 111 to the flange hole of extending back to said nut portion 220 sides, and the surface of the inwall of said through hole 110 and said weldment 100 is with fillet r transition.Said spot welding bolt 200 comprises threaded shank 210 and nut portion 220; The end face of the external cylindrical surface of said threaded shank 210 and said nut portion 220 is with fillet R transition; The threaded shank 210 of said spot welding bolt 200 is passed said through hole 110, the nut portion 220 of said spot welding bolt 200 and said weldment 100 welding.
Owing to adopt this kind structure, avoided the fillet R of spot welding bolt 200 on the fillet r structure of through hole 110, solved the bolt sealing-off problem that causes because of constructive interference; And the aperture Φ D of through hole 110 can as far as possible little (getting final product slightly greatly than diameter of bolt Φ d) on the weldment 100, realized the high accuracy of part.
Among embodiment, in order better to solve the bolt sealing-off problem that causes because of constructive interference, the radius of said fillet R equals the radius of said fillet r therein.
Among embodiment, the bearing of trend of said flange 111 is parallel with the centerline direction of said through hole 110 therein, to realize that weldment 100 is connected with spot welding bolt 200 high accuracy.Further preferred, the aperture Φ D of said through hole 110 is than the big 0.3mm to 4mm of external diameter Φ d of said threaded shank 210.Further preferred, the height H of said flange 111 is 2mm to 30mm.
Therein among embodiment, welding for ease, said nut portion 220 is provided with positioning convex 221 and the detent (not shown on the figure) that matches with said weldment 100 facing surfaces.Further preferred, said positioning convex 221 is arranged in the said nut portion 220, and said detent is arranged on the said weldment 100.
Among embodiment, said threaded shank 210 is a ledge structure therein, and it comprises the enlarged diameter section 212 at anterior reduced diameter section 211 and rear portion, and the external cylindrical surface of said reduced diameter section 211 is provided with screw thread.
Among embodiment, said weldment 100 is a platy structure therein.
The above embodiment has only expressed several kinds of embodiments of the utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model claim.Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the utility model design, can also make some distortion and improvement, these all belong to the protection domain of the utility model.Therefore, the protection domain of the utility model patent should be as the criterion with accompanying claims.
Claims (9)
1. the syndeton of weldment and spot welding bolt; Comprise weldment and spot welding bolt; Said weldment is provided with through hole, and said spot welding bolt comprises threaded shank and nut portion, and the end face of the external cylindrical surface of said threaded shank and said nut portion is with fillet R transition; The threaded shank of said spot welding bolt is passed said through hole, the nut portion of said spot welding bolt and the welding of said weldment; It is characterized in that said through hole is a flange to the flange hole of extending back to said nut portion side, and the surface of the inwall of said through hole and said weldment is with fillet r transition.
2. the syndeton of weldment according to claim 1 and spot welding bolt is characterized in that the radius of said fillet R equals the radius of said fillet r.
3. the syndeton of weldment according to claim 1 and spot welding bolt is characterized in that the bearing of trend of said flange is parallel with the centerline direction of said through hole.
4. the syndeton of weldment according to claim 2 and spot welding bolt is characterized in that, the aperture Φ D of said through hole is than the big 0.3mm to 4mm of external diameter Φ d of said threaded shank.
5. the syndeton of weldment according to claim 2 and spot welding bolt is characterized in that, the height H of said flange is 2mm to 30mm.
6. according to the syndeton of any described weldment and spot welding bolt in the claim 1 to 5, it is characterized in that said nut portion and said weldment facing surfaces are provided with positioning convex and the detent that matches.
7. the syndeton of weldment according to claim 6 and spot welding bolt is characterized in that, said positioning convex is arranged in the said nut portion, and said detent is arranged on the said weldment.
8. according to the syndeton of any described weldment and spot welding bolt in the claim 1 to 5; It is characterized in that; Said threaded shank is a ledge structure, and it comprises the anterior reduced diameter section and the enlarged diameter section at rear portion, and the external cylindrical surface of said reduced diameter section is provided with screw thread.
9. according to the syndeton of any described weldment and spot welding bolt in the claim 1 to 5, it is characterized in that said weldment is a platy structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220235877 CN202622195U (en) | 2012-05-23 | 2012-05-23 | Connecting structure of weldment and spot welding bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220235877 CN202622195U (en) | 2012-05-23 | 2012-05-23 | Connecting structure of weldment and spot welding bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202622195U true CN202622195U (en) | 2012-12-26 |
Family
ID=47375438
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220235877 Expired - Lifetime CN202622195U (en) | 2012-05-23 | 2012-05-23 | Connecting structure of weldment and spot welding bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202622195U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103418925A (en) * | 2012-05-23 | 2013-12-04 | 珠海格力电器股份有限公司 | Connecting structure of weldment and spot welding bolt |
| CN109862987A (en) * | 2016-08-19 | 2019-06-07 | Ejot 有限责任公司 | Method for connecting at least two components layers to the preparatory drilling of cap rock using plasma beam |
-
2012
- 2012-05-23 CN CN 201220235877 patent/CN202622195U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103418925A (en) * | 2012-05-23 | 2013-12-04 | 珠海格力电器股份有限公司 | Connecting structure of weldment and spot welding bolt |
| CN103418925B (en) * | 2012-05-23 | 2016-06-08 | 珠海格力电器股份有限公司 | Connecting structure of weldment and spot welding bolt |
| CN109862987A (en) * | 2016-08-19 | 2019-06-07 | Ejot 有限责任公司 | Method for connecting at least two components layers to the preparatory drilling of cap rock using plasma beam |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20121226 Effective date of abandoning: 20160608 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |