CN102500711A - Shell nosing process for oil reservoir of shock absorber and equipment used thereby - Google Patents
Shell nosing process for oil reservoir of shock absorber and equipment used thereby Download PDFInfo
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- CN102500711A CN102500711A CN2011103090769A CN201110309076A CN102500711A CN 102500711 A CN102500711 A CN 102500711A CN 2011103090769 A CN2011103090769 A CN 2011103090769A CN 201110309076 A CN201110309076 A CN 201110309076A CN 102500711 A CN102500711 A CN 102500711A
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Abstract
The invention discloses a shell nosing process for an oil reservoir of a shock absorber, comprising the following steps of: (1) feeding materials; and (2) successively pre-pressing a work piece, inserting a core mould into an inner hole, carrying out shell nosing, pressing the work piece, drawing an inner hole by the core mould until a pipe wall is 0.05-0.1 mm, pulling out a shell nosing mould, releasing the work piece, taking out the work piece, and then entering the next cycle. Equipment used by the shell nosing process for the oil reservoir of the shock absorber comprises an upper mould and a lower mould which are matched with each other and are used for pressing the work piece; a concave mould a and a cushion sleeve a are arranged at the left side of the upper mould and the lower mould in sequence; a concave mould b, a concave mould c and a cushion sleeve b are arranged at the right side of the upper mould and the lower mould in sequence; the equipment further comprises a core shaft a and a core shaft b; when the core shaft a works, the core shaft a stretches into the inner hole at the left side of the work piece along the inner holes of the cushion sleeve a and the concave mould a to be drawn; and when the core shaft b works, the core shaft b stretches into the inner hole at the right side of the work piece along the inner holes of the cushion sleeve b, the concave mould c and the concave mould b to be drawn. According to the invention, a process of firstly withdrawing the core shaft and then withdrawing the concave mould is realized and the plastic deformation of the materials is small, thereby meeting technological requirements of the oil reservoir.
Description
Technical field
The present invention relates to the shaping of vehicle shock absorber oil storage cylinder, relate in particular to damper oil storage cylinder bottling technique and equipment.
Background technology
Former oil storage cylinder closing in operation is not because of there being special closing-in equipment, and the mould design is used on the 100T hydraulic press, but receives the restriction of hydraulic press device structure, and part can only close up by an end.Mould structure is that closing in mandrel and external diameter closing-in mould are fixed on counterdie, by on be embossed in the part top and down enter in the closing-in mould, because of oil storage cylinder length generally more than 200cm; The stressed buckling deformation phenomenon that occurs easily in bottom in the closing in process; And down during the oil cylinder material returned, part closing in end face is stressed, and horn mouth appears in the closing in end face; Machine adds planar end surface will all be removed the horn mouth position, has increased the cost of part.After buy special closing-in equipment oil storage cylinder horizontal type double-side trimmer, the moulding of special equipment action is that workpiece is fixed on the mould, two ends closing in internal diameter mandrel runs in the part earlier; Die moves and closes up; Die withdraws from earlier after close up accomplishing, and withdraws from behind the internal diameter mandrel, and this moulding method of operating withdraws from after because of the internal diameter mandrel; Big and the external diameter of material plastic deformation not constraint causes oral area or horn mouth, and the cylindricity of diameter can not satisfy the requirement of vibration damper complement.
Summary of the invention
To the problem that above-mentioned prior art exists, the object of the invention is to provide a kind of damper oil storage cylinder bottling technique and equipment, realizes that moving back mandrel earlier retreats die, and the plastic deformation of material is little, has reached the technological requirement of oil storage cylinder.
Technical scheme of the present invention is: a kind of damper oil storage cylinder bottling technique may further comprise the steps:
(1) feeding;
(2)---heart mould inserts endoporus, and------Work-sheet pressing---heart die drawing that closes up pulls out endoporus, and tube wall draws thin 0.05-0.1mm, and---pickup that Closing in die is pulled out---unclamping workpiece---gets into next circulation to workpiece pre-compacted.
A kind of equipment that is used for damper oil storage cylinder bottling technique; The upper die and lower die that comprise the workpiece pressing that cooperatively interacts; Die a that the left side of upper die and lower die is provided with successively and cushion cover a, the right side of upper die and lower die is provided with die b, die c and cushion cover b successively, also comprises mandrel a and mandrel b; In mandrel a when work, carried out drawing along the left side endoporus that the endoporus of cushion cover a and die a stretches into workpiece, and the right side endoporus that stretches into workpiece along the endoporus of cushion cover b, die c and die b when mandrel b works carries out drawing.
The invention has the beneficial effects as follows: former closing in equipment-oil storage cylinder horizontal type double-side trimmer is replaced with oil storage cylinder double end reducing trimmer, and these two kinds of equipment all are the special equipments according to our company's production technology Demand Design.The characteristics of this patent just are the material analysis of plastic deformation, have proposed to move back the theory that mandrel is retreated die earlier, add man-hour in closing in; The plug drawing again of closing up earlier, tube wall produces plastic deformation, reaches the integer purpose; Two hole axiality≤0.05mm after guaranteeing to close up, the dimensional accuracy in hole reaches the H8 level, and this theory maintains the leading position at home; Special equipment oil storage cylinder double end reducing trimmer designs according to this theory; Realized moving back the action that mandrel is retreated die earlier after part closes up, solved product closing in oral area horn mouth and cylindricity problem, guaranteed product quality.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Among the figure: 1, patrix; 2, counterdie; 3, die a; 4, cushion cover a; 5, mandrel a; 6, die b; 7, die c; 8, cushion cover b; 9, mandrel b; 10, workpiece.
The specific embodiment
As one embodiment of the present invention; As shown in Figure 1; A kind of damper oil storage cylinder closing in equipment comprises the upper die and lower die of the workpiece pressing that cooperatively interacts, die a that the left side of upper die and lower die is provided with successively and cushion cover a; The right side of upper die and lower die is provided with die b, die c and cushion cover b successively; Also comprise mandrel a and mandrel b, in mandrel a when work, carried out drawing along the left side endoporus that the endoporus of cushion cover a and die a stretches into workpiece, and the right side endoporus that stretches into workpiece along the endoporus of cushion cover b, die c and die b when mandrel b works carries out drawing.
A kind of damper oil storage cylinder bottling technique may further comprise the steps:
(1) feeding;
(2)---mandrel inserts the workpiece endoporus, and------Work-sheet pressing---heart die drawing that closed up in the workpiece two ends simultaneously pulls out endoporus, and tube wall draws thin 0.05-0.1mm, and---pickup that Closing in die is pulled out---unclamping workpiece---gets into next circulation to workpiece pre-compacted.
The mould operational process is following in the closing in process:
Workpiece is placed on the counterdie------mandrel at workpiece two ends inserts the workpiece endoporus to the workpiece direction operation, and---die operation in two ends is closed up, and---mandrel at workpiece two ends is outwards extracted out, and---die withdraws from, and---patrix upwards---taken off workpiece to the descending workpiece pressing of patrix.
The present invention replaces with oil storage cylinder double end reducing trimmer (Shenzhen production) with former closing in equipment-oil storage cylinder horizontal type double-side trimmer (Changchun production), and these two kinds of equipment all are the special equipments according to our company's production technology Demand Design.Characteristics of the present invention have proposed to move back the theory that mandrel is retreated die earlier with regard to after being that to material the plastic deformation in the closing in process is analyzed, and add man-hour in closing in; The plug drawing again of closing up earlier, tube wall produces plastic deformation, reaches the integer purpose; Two hole axiality≤0.05mm after guaranteeing to close up, the dimensional accuracy in hole reaches the H8 level, has guaranteed product quality; Reduced the damper leakage phenomenon, had the top standard aspect the cylinder body moulding process, this theory maintains the leading position at home; The special equipment oil storage cylinder double end reducing trimmer that Shenzhen produces designs according to this theory; Realized moving back the action that mandrel is retreated die earlier after part closes up, solved product closing in oral area horn mouth and cylindricity problem, guaranteed product quality.
Claims (2)
1. damper oil storage cylinder bottling technique is characterized in that: may further comprise the steps:
(1) feeding;
(2)---heart mould inserts endoporus, and------Work-sheet pressing---heart die drawing that closes up pulls out endoporus, and tube wall draws thin 0.05-0.1mm, and---pickup that Closing in die is pulled out---unclamping workpiece---gets into next circulation to workpiece pre-compacted.
2. equipment that is used for the described damper oil storage cylinder of claim 1 bottling technique; It is characterized in that: the upper die and lower die that comprise the workpiece pressing that cooperatively interacts; Die a that the left side of upper die and lower die is provided with successively and cushion cover a; The right side of upper die and lower die is provided with die b, die c and cushion cover b successively; Also comprise mandrel a and mandrel b, in mandrel a when work, carried out drawing along the left side endoporus that the endoporus of cushion cover a and die a stretches into workpiece, and the right side endoporus that stretches into workpiece along the endoporus of cushion cover b, die c and die b when mandrel b works carries out drawing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103090769A CN102500711A (en) | 2011-10-13 | 2011-10-13 | Shell nosing process for oil reservoir of shock absorber and equipment used thereby |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103090769A CN102500711A (en) | 2011-10-13 | 2011-10-13 | Shell nosing process for oil reservoir of shock absorber and equipment used thereby |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102500711A true CN102500711A (en) | 2012-06-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103090769A Pending CN102500711A (en) | 2011-10-13 | 2011-10-13 | Shell nosing process for oil reservoir of shock absorber and equipment used thereby |
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| CN (1) | CN102500711A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114472583A (en) * | 2022-03-11 | 2022-05-13 | 湖南中创空天新材料股份有限公司 | Processing method of special-shaped reducing thin-wall seamless aluminum pipe with two closed ends at two ends |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0188086A2 (en) * | 1985-01-12 | 1986-07-23 | STEVENS & BULLIVANT LIMITED | Manufacture of tubular components |
| CN2136084Y (en) * | 1992-09-29 | 1993-06-16 | 第一汽车制造厂工艺处 | Floating arbor type precision diameter reducing mould for thin-walled tube |
| US5249449A (en) * | 1992-04-23 | 1993-10-05 | Reynolds Metals Company | Can necking apparatus with spindle containing pressurizing gas reservoir |
| CN201275579Y (en) * | 2008-10-23 | 2009-07-22 | 应端忠 | Double-ended necking and concentricity processing equipment |
-
2011
- 2011-10-13 CN CN2011103090769A patent/CN102500711A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0188086A2 (en) * | 1985-01-12 | 1986-07-23 | STEVENS & BULLIVANT LIMITED | Manufacture of tubular components |
| US5249449A (en) * | 1992-04-23 | 1993-10-05 | Reynolds Metals Company | Can necking apparatus with spindle containing pressurizing gas reservoir |
| CN2136084Y (en) * | 1992-09-29 | 1993-06-16 | 第一汽车制造厂工艺处 | Floating arbor type precision diameter reducing mould for thin-walled tube |
| CN201275579Y (en) * | 2008-10-23 | 2009-07-22 | 应端忠 | Double-ended necking and concentricity processing equipment |
Non-Patent Citations (1)
| Title |
|---|
| 肖祥芷等: "《中国模具工程大典 第4卷冲压模具设计》", 31 March 2007, article "缩口与扩口模", pages: 606-607 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114472583A (en) * | 2022-03-11 | 2022-05-13 | 湖南中创空天新材料股份有限公司 | Processing method of special-shaped reducing thin-wall seamless aluminum pipe with two closed ends at two ends |
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Application publication date: 20120620 |