CN1868626A - Precision shaping method of solid bearing holder - Google Patents
Precision shaping method of solid bearing holder Download PDFInfo
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- CN1868626A CN1868626A CN 200510017622 CN200510017622A CN1868626A CN 1868626 A CN1868626 A CN 1868626A CN 200510017622 CN200510017622 CN 200510017622 CN 200510017622 A CN200510017622 A CN 200510017622A CN 1868626 A CN1868626 A CN 1868626A
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Abstract
A precise forming method for the solid bearing holder includes such steps as coating lubricant on the surface of blank, heating at 580-850 deg.C for 10-20 min, putting it in a die set at 560-820 deg.C, and press forming.
Description
Technical field
The invention belongs to the forming technique field of retainer, what relate generally to is a kind of accurate forming method of solid bearing cage.
Background technology
Railway locomotive and some high speeds, heave-load device are in running, because the influence of impacting, vibrating and turn to, the retainer of its key position bears great impact load randomly.Require retainer except that should having characteristics such as mechanical property height, high temperature resistant, wear resistant friction reducing, also require its riveting intensity height, bearing assembly easily separated.Copper alloy has the characteristics of wear resistant friction reducing, and mechanical behavior under high temperature is also relatively good, is used widely in the high-speed overload bearing.But owing to be subjected to the restriction of technical conditions, at present, the copper/copper alloy bearing retainer still adopts traditional cutting working method to be shaped, and working (machining) efficiency and stock utilization are all lower, because of blank is that founding materials makes its mechanical property not high.For improving the retainer new construction of its riveting intensity and increase bearing assembly separating degree, also the defective because of process technology is difficult to adopt.Now existing people has proposed to adopt superplasticforming to produce the method for retainer, and working (machining) efficiency, stock utilization and material property are improved.But this technology has adopted conventional tissue hyper-plastic's method, need carry out complicated superplasticity pretreating process such as thermomechanical treatment, cycle heat treatment, makes process complications, and processing cost improves, and is difficult to carry out large-scale production.
Summary of the invention
The objective of the invention is to overcome the defective of above-mentioned processing method, propose a kind of accurate forming method of solid bearing cage.Thereby the simplification forming technology is enhanced productivity, and cuts down finished cost, and can realize large-scale industrial production.
The present invention realizes that the technical scheme that above-mentioned purpose is taked is: be incubated 10～20 minutes after the blank that will scribble lubricant is heated to 580～850 ℃, put into temperature and be 560～820 ℃ mould extrusion molding.
Blank material of the present invention is brass HPb59-1 or albronze QAl 10-4-4-3-1.5.
The present invention utilizes the crystallization superplasticity again of big crystal grain Cu alloy material, directly adopts the as cast condition annular blank, carries out the inferior superplasticity extrusion molding of retainer, and does not need complicated superplasticity pretreating process.The tissue of shaping product is continuous streamline structure feature, along the product contoured profile, and the surface quality height, mechanical property is good.The present invention can utilize the extruding annular blank to form equally.
The present invention adopts extrusion forming method, and the mechanical performance that the makes product particularly riveting intensity of body and end cap improves a lot than special-purpose rivet type retainer.Thereby satisfy the instructions for use of railway locomotive and jumbo to bearing.Compare with tissue hyper-plastic's method of routine, saved complicated superplasticity pretreating process, forming technology is simplified, production efficiency improves, and processing cost reduces.
The manufacturing process that the present invention adopts, but once-forming goes out the body and the end cap of retainer, adopts machining that both are separated then, can make its shaping through a spot of machining again.Compare with the cutting technology of routine, its stock utilization and production efficiency significantly improve.
The manufacturing process that the present invention adopts, can make the shaping of the retainer that carries rivet become very simple, can change simultaneously the side view of retainer lintel easily, form difform pocket pore structure, bring bigger convenience to the structure optimization of retainer and bearing.As passing through the optimization of pocket pore structure, the designing requirement of bearing high separation is satisfied in separating of inner ring, outer ring, rolling element and the retainer of realization bearing, makes things convenient for the loading and unloading and the maintenance of bearing.
Description of drawings
Accompanying drawing 1 is the structural representation of mold for extruding and forming of the present invention.
Among the figure: 1, pressure head, 2, product, 3, die, 4, backing-out punch, 5, little push rod, 6, extruded sleeve, 7, die shoe.
The specific embodiment
In conjunction with the accompanying drawings, embodiments of the invention are elaborated.
The used blank of present embodiment is a brass HPb59-1 cast tube material, makes annular blank through turning.The blanking volume of blank should comprise the edge of a knife materials of retainer body part, end cap part, separation circuit and machining clout etc.
Blank is preheating to 120 ℃ is coated with the aqueous graphite lubricant, insulation was 20 minutes after blank was put into cabinet-type electric furnace and is heated to 620 ℃, put into temperature then and be 580 ℃ mould, made the blank distortion be full of the die die cavity and was shaped.The press that present embodiment adopts is a hydraulic press.Mould is as shown in Figure 1: the extrusion molding part mainly by pressure head 1, die 3, backing-out punch 4, little push rod 5, extruded sleeve 6, and die shoe 7 constitute.Wherein, pressure head 1 is fixed on the moved cross beam of press by fixture; Die 3 is positioned at below the extruded sleeve 6, and both are fixed on the die shoe 7 together, and backing-out punch 4 is arranged in the die shoe 7, is provided with little push rod 5 on backing-out punch 4.
The course of work of present embodiment is, starting press makes pressure head 1 descending near counterdie extruded sleeve 6 fast, descending at a slow speed then contact blank, and make blank 2 produce plastic deformations and progressively be full of die 3 die cavitys with the speed of 1 mm/second, pressure head 1 arrived bottom dead centre when press pressure progressively rose to 18MPa, and product is shaped.Handle press and make the pressure head backhaul, backing-out punch 4 moves upward, and by little push rod 5 extrusion is ejected, and finishes the forming process of a retainer.
The used blank of present embodiment is a brass HPb59-1 extruded tube material, makes annular blank through turning.The blanking volume of blank should comprise the edge of a knife materials of retainer body part, end cap part, separation circuit and machining clout etc.
Blank is preheating to 180 ℃ is coated with the aqueous graphite lubricant, insulation was 15 minutes after blank put into cabinet-type electric furnace and be heated to 650 ℃, put into temperature then and be 620 ℃ mould, with the operating rate of 2 mm/second, the pressure of 15MPa makes the blank distortion and is full of the die die cavity and finishes extrusion process.The press that present embodiment adopts is conventional press.Its structure and the course of work are with embodiment 1.
The used blank of present embodiment is a brass HPb59-1 cast tube material, makes annular blank through turning.The blanking volume of blank should comprise the edge of a knife materials of retainer body part, end cap part, separation circuit and machining clout etc.
Blank is preheating to 220 ℃ is coated with the aqueous graphite lubricant, insulation was 15 minutes after blank put into cabinet-type electric furnace and be heated to 680 ℃, put into temperature then and be 650 ℃ mould, with the operating rate of 2 mm/second, the pressure of 12MPa makes the blank distortion and is full of the die die cavity and finishes extrusion process.The press that present embodiment adopts is conventional press.Its structure and the course of work are with embodiment 1.
Embodiment 4
The used blank of present embodiment is albronze QAl 10-4-4-3-1.5 extruded tube material, makes annular blank through turning.The blanking volume of blank should comprise the edge of a knife materials of retainer body part, end cap part, separation circuit and machining clout etc.
Blank is preheating to 180 ℃ is coated with the aqueous graphite lubricant, insulation was 15 minutes after blank put into cabinet-type electric furnace and be heated to 850 ℃, put into temperature then and be 620 ℃ mould, with the operating rate of 2 mm/second, the pressure of 15MPa makes the blank distortion and is full of the die die cavity and finishes extrusion process.The press that present embodiment adopts is conventional press.Its structure and the course of work are with embodiment 1.
The used blank of present embodiment is albronze QAl 10-4-4-3-1.5 cast tube material, makes annular blank through turning.The blanking volume of blank should comprise the edge of a knife materials of retainer body part, end cap part, separation circuit and machining clout etc.
Blank is preheating to 220 ℃ is coated with the aqueous graphite lubricant, insulation was 15 minutes after blank put into cabinet-type electric furnace and be heated to 820 ℃, put into temperature then and be 650 ℃ mould, with the operating rate of 1 mm/second, the pressure of 25MPa makes the blank distortion and is full of the die die cavity and finishes extrusion process.The press that present embodiment adopts is conventional press.Its structure and the course of work are with embodiment 1.
The used blank of present embodiment is albronze QAl 10-4-4-3-1.5 cast tube material, makes annular blank through turning.The blanking volume of blank should comprise the edge of a knife materials of retainer body part, end cap part, separation circuit and machining clout etc.
Blank is preheating to 140 ℃ is coated with the aqueous graphite lubricant, insulation was 20 minutes after blank put into cabinet-type electric furnace and be heated to 780 ℃, put into temperature then and be 750 ℃ mould, with the operating rate of 3 mm/second, the pressure of 22MPa makes the blank distortion and is full of the die die cavity and finishes extrusion process.The press that present embodiment adopts is conventional press.Its structure and the course of work are with embodiment 1.
Claims (6)
1, a kind of accurate forming method of bearing holder is characterized in that: be incubated 10～20 minutes after the blank that will scribble lubricant is heated to 580～850 ℃, put into temperature and be 560～820 ℃ mould extrusion molding.
2, the accurate forming method of bearing holder according to claim 1 is characterized in that: described blank material is brass HPb59-1 or aluminium bronze QAl 10-3-1.5.
3, the accurate forming method of bearing holder according to claim 1 and 2 is characterized in that: described blank is cast tube material or extruded tube material.
4, according to the accurate forming method of claim 1 or 3 described bearing holders, it is characterized in that: described blank material is brass HPb59-1, and its blank heating-up temperature is 580～700 ℃, 560～680 ℃ of mold temperatures.
5, according to the accurate forming method of claim 1 or 3 described bearing holders, it is characterized in that: described blank material is aluminium bronze QAl 10-3-1.5, and its blank heating-up temperature is 700～850 ℃, 620～680 ℃ of mold temperatures.
6, the accurate forming method of bearing holder according to claim 1 is characterized in that: described blank carries out preheating to it before being coated with lubricant, and preheat temperature is 120～220 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510017622 CN1868626A (en) | 2005-05-27 | 2005-05-27 | Precision shaping method of solid bearing holder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510017622 CN1868626A (en) | 2005-05-27 | 2005-05-27 | Precision shaping method of solid bearing holder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1868626A true CN1868626A (en) | 2006-11-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510017622 Pending CN1868626A (en) | 2005-05-27 | 2005-05-27 | Precision shaping method of solid bearing holder |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104324970A (en) * | 2014-09-03 | 2015-02-04 | 西安交通大学 | Electromagnetic radial impact type semisolid extrusion die of rolling bearing holder |
| CN110744002A (en) * | 2019-10-09 | 2020-02-04 | 洪方正 | Vacuum breaker valve and preparation method thereof |
| CN116135358A (en) * | 2023-03-13 | 2023-05-19 | 山东普瑞而机械制造有限公司 | Warm extrusion manufacturing method of gear |
-
2005
- 2005-05-27 CN CN 200510017622 patent/CN1868626A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104324970A (en) * | 2014-09-03 | 2015-02-04 | 西安交通大学 | Electromagnetic radial impact type semisolid extrusion die of rolling bearing holder |
| CN104324970B (en) * | 2014-09-03 | 2016-04-13 | 西安交通大学 | A kind of rolling bearing retainer electromagnetism radial impact formula semi-solid state extrusion mould |
| CN110744002A (en) * | 2019-10-09 | 2020-02-04 | 洪方正 | Vacuum breaker valve and preparation method thereof |
| CN116135358A (en) * | 2023-03-13 | 2023-05-19 | 山东普瑞而机械制造有限公司 | Warm extrusion manufacturing method of gear |
| CN116135358B (en) * | 2023-03-13 | 2024-05-07 | 山东普瑞而机械制造有限公司 | Warm extrusion manufacturing method of gear |
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