CN203409079U - Hole expansion device for car rear axle - Google Patents
Hole expansion device for car rear axle Download PDFInfo
- Publication number
- CN203409079U CN203409079U CN201320500016.XU CN201320500016U CN203409079U CN 203409079 U CN203409079 U CN 203409079U CN 201320500016 U CN201320500016 U CN 201320500016U CN 203409079 U CN203409079 U CN 203409079U
- Authority
- CN
- China
- Prior art keywords
- swollen
- rear axle
- hind axle
- machine tool
- automobile hind
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a hole expansion device for a car rear axle. The hole expansion device comprises a hole expansion machine, a machine tool rail and a car rear axle, wherein an oil pump is mounted on each of the two ends of the machine tool rail by using a gasket and a bolt; the distance between the two oil pumps is slightly greater than the length of the car rear axle; the machine tool rail is further provided with two rear axle clamping devices by using gaskets and bolts; each rear axle clamping device is mounted on one part which is one fifth far away from the end head of the car rear axle; the end part of each piston push rod of each of the two oil pumps is fixedly provided with a hole expansion die head. Therefore, not only the dimensional precision, the roughness and the coaxiality of mounting holes in the two ends of the car rear axle can be higher than technical requirements, but also the work efficiency is improved by two times and the operation is convenient and safe.
Description
Technical field
The utility model relates to field of machining, relates in particular to a kind of swollen aperture apparatus of double end of automobile hind axle.
Background technology
Automobile hind axle is a crux part on automobile chassis, and length is more than 1.4m, and the installing hole at two ends not only dimensional accuracy and roughness requires highly, and axiality requires to be less than 0.2mm.Prior art is to carrying out respectively bore hole after the installing hole turning at two ends again, and the result axiality of processing requires to be difficult to guarantee, and production efficiency is low.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of installing hole axiality requirement that can guarantee automobile hind axle two ends, and the high processing unit (plant) of work efficiency.
To achieve these goals, the technical scheme that the utility model is taked is: a kind of swollen aperture apparatus of double end of automobile hind axle, comprise swollen hole machine, machine tool track, automobile hind axle, an oil pump is respectively installed with packing ring and bolt in described machine tool track two ends, two oil pump spacing are a bit larger tham the length of automobile hind axle, shaft clamping device also install two with packing ring and bolt on machine tool track after, rear shaft clamping device is arranged on from the position of automobile hind axle termination 1/5th, fixedly mounts a swollen casement head in the piston push rod end of two oil pumps.
The utility model further improves and is: the limit deviation of the working face external diameter of described swollen casement head is got n6-n8 level, working face case hardness HRC52-HRC55, working face surface roughness is higher than Ra0.8, and the working face of swollen casement head and the radius of corner of end face are 2-3 times of position, swollen hole wall thickness.
The beneficial effects of the utility model are: not only make installing hole dimensional accuracy, roughness and the axiality at automobile hind axle two ends all higher than specification requirement, and work efficiency has improved 2 times, easy to operate, safety.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model:
Fig. 2 is swollen casement header structure schematic diagram of the present utility model.
In figure: 1. swollen hole machine, 2. machine tool track, 3. packing ring, 4. bolt, 5. oil pump, 6. piston push rod, 7. swollen casement head, 8. rear shaft clamping device, 9. automobile hind axle, 10. working face, 11. fillets, 12. end faces.
The specific embodiment
In order to deepen, to understanding of the present utility model, below in conjunction with embodiment and accompanying drawing, the utility model to be further described, this embodiment only, for explaining the utility model, does not form the restriction of the utility model protection domain.
As shown in Figure 1: the swollen aperture apparatus of double end of a kind of automobile hind axle of the present utility model, comprise swollen hole machine 1, machine tool track 2, automobile hind axle 9, at machine tool track 2 two ends, with packing ring 3 and bolt 4, an oil pump 5 is respectively installed, two length that oil pump 5 spacing are a bit larger tham automobile hind axle 9, shaft clamping device 8 after also installing two with packing ring 3 and bolt 4 on machine tool track 2, rear shaft clamping device 8 is arranged on from the position of automobile hind axle 9 terminations 1/5th, in piston push rod 6 ends of two oil pumps 5, all fixedly mount a swollen casement head 7, the limit deviation of working face 10 external diameters of described swollen casement head 7 is got n6-n8 level, working face 10 case hardness HRC52-HRC55, working face 10 surface roughnesses are higher than Ra0.8, the working face 10 of swollen casement head 7 and fillet 11 radiuses of end face 12 are 2-3 times of position, swollen hole wall thickness.
When the utility model is implemented, after clamping on shaft clamping device 8 after operator is placed on two by automobile hind axle 9 semi-finished product, start two oil pumps 5, make two piston push rods 6 to the two ends installing hole of automobile hind axle 9, move swollen hole to the degree of depth of regulation together with swollen casement head 7 simultaneously.
The utility model not only makes installing hole dimensional accuracy, roughness and the axiality at automobile hind axle two ends all higher than specification requirement after implementing, and work efficiency has improved 2 times, easy to operate, safety.
Claims (2)
1. the swollen aperture apparatus of an automobile hind axle, comprise swollen hole machine, machine tool track, automobile hind axle, it is characterized in that: an oil pump is respectively installed with packing ring and bolt in described machine tool track two ends, and two oil pump spacing are a bit larger tham the length of automobile hind axle, on machine tool track, also with packing ring and bolt, install two after shaft clamping device, rear shaft clamping device is arranged on from the position of automobile hind axle termination 1/5th, fixedly mounts a swollen casement head in the piston push rod end of two oil pumps.
2. the swollen aperture apparatus of a kind of automobile hind axle according to claim 1, it is characterized in that: the limit deviation of the working face external diameter of described swollen casement head is got n6--n8 level, working face case hardness HRC52--HRC55, working face surface roughness is higher than Ra0.8, and the working face of swollen casement head and the radius of corner of end face are 2--3 times of position, swollen hole wall thickness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320500016.XU CN203409079U (en) | 2013-08-16 | 2013-08-16 | Hole expansion device for car rear axle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320500016.XU CN203409079U (en) | 2013-08-16 | 2013-08-16 | Hole expansion device for car rear axle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203409079U true CN203409079U (en) | 2014-01-29 |
Family
ID=49972007
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320500016.XU Expired - Fee Related CN203409079U (en) | 2013-08-16 | 2013-08-16 | Hole expansion device for car rear axle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203409079U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104259755A (en) * | 2014-08-13 | 2015-01-07 | 中国长安汽车集团股份有限公司四川建安车桥分公司 | Machining process for rear axle tube of lightweight car and rear axle tube machined according to machining process |
-
2013
- 2013-08-16 CN CN201320500016.XU patent/CN203409079U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104259755A (en) * | 2014-08-13 | 2015-01-07 | 中国长安汽车集团股份有限公司四川建安车桥分公司 | Machining process for rear axle tube of lightweight car and rear axle tube machined according to machining process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140129 Termination date: 20150816 |
|
| EXPY | Termination of patent right or utility model |