CN105563012A - Lifting lug orifice fillet method - Google Patents
Lifting lug orifice fillet method Download PDFInfo
- Publication number
- CN105563012A CN105563012A CN201410498208.0A CN201410498208A CN105563012A CN 105563012 A CN105563012 A CN 105563012A CN 201410498208 A CN201410498208 A CN 201410498208A CN 105563012 A CN105563012 A CN 105563012A
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- Prior art keywords
- fillet
- drift
- hanger
- extrusion
- aperture
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Abstract
The invention discloses a lifting lug orifice fillet method. The method includes an extrusion fillet punch and an extrusion tooling and includes the following steps: a step A, performing rough machining on a lifting lug, completing machining of a press-fitting hole of the lifting lug, machining a small fillet at an orifice of the press-fitting hole; and a step B, placing the lifting lug with the small fillet orifice obtained from the step A in the extrusion tooling, knocking the top of the extrusion fillet punch by using a copper bar, allowing the extrusion fillet punch to cooperate the extrusion tooling to extrude the small fillet of the orifice into a smooth transition fillet through a cold extruding method. The method is simple in operation, and through cooperation of the extrusion fillet punch and the extrusion tooling, the smooth transition fillet of the lifting lug can be extruded by adoption of the cold extruding method; the machined fillet has a strong regularity and has no edges, cannot damage an outer round face of a sliding bearing during press-fitting, and is good in applicability; and the machining efficiency can be effectively ensured, the machining cost can be decreased, and the practicability is good.
Description
Technical field
The invention belongs to rounding method and technology field, be specifically related to a kind of hanger aperture rounding method.
Background technology
The sliding bearing press mounting hole processing of prior art to hanger usually adopts to have and adopts roughing to carry out down big angle, then fine finishining adopts pulling force pulling eye, rely on two ends, hole self-assembling formation chamfering, although it can complete the rounding processing of sliding bearing press mounting hole, but there is irregular seamed edge in the orifice chamfer of its processing, easily damage the periphery of sliding bearing when press-fiting, applicability is affected; Also have and adopt common boring machine right boring hole and chamfering, its working (machining) efficiency is general and orifice chamfer is also more regular, but it also exists rib power, and easily damage the periphery of sliding bearing when press-fiting, applicability is affected, and is difficult to the demand meeting market.
Summary of the invention
In order to solve the problems of the technologies described above, the invention provides a kind of simple to operate, aperture fillet can be met and seamlessly transit requirement and cost-effective hanger aperture rounding method.
The technical scheme realizing the object of the invention is a kind of hanger aperture rounding method, comprises extruding fillet drift and extrusion tooling, comprises the following steps
Steps A, carries out roughing by hanger, completes the processing to hanger press mounting hole, processes little chamfering in the aperture of press mounting hole simultaneously;
Step B, is placed in extrusion tooling by the hanger in steps A with little chamfering aperture, uses copper rod to knock the top of extruding fillet drift, makes extruding fillet drift coordinate extrusion tooling that the little chamfering in aperture is squeezed out level and smooth knuckle by cold-extruded platen press.
Described extruding fillet drift comprises drift force column, be arranged on the drift baffle plate of described drift force column lower end and be arranged on the fillet punch body of nest plate lower end, the diameter of described fillet punch body is that 40.5mm is arranged, the height of described drift force column is that 65mm is arranged, the thickness of described drift baffle plate is that 15mm is arranged, and the diameter of described drift force column is that 50mm is arranged.
The force-bearing base that described extrusion tooling comprises base and is vertically arranged on base, the height of described force-bearing base is identical with the length of hanger press mounting hole, when described fillet punch body enters hanger press mounting hole, the end face that the lower surface of described drift plate washer is pressed on force-bearing base realizes fillet depth localization.
In described steps A, hanger press mounting hole is that broaching machine broaching is shaping.
The present invention has positive effect: method of the present invention is simple to operate, extrusion tooling is coordinated by extruding fillet drift, cold-extruded platen press is adopted to realize completing hanger squeezing out level and smooth knuckle, chamfering systematicness of its processing is strong and do not have rib power, be not easy the periphery damaging sliding bearing when press-fiting, applicability is good, effectively can ensure working (machining) efficiency simultaneously, cut down finished cost, practicality is good.
Accompanying drawing explanation
In order to make content of the present invention be more likely to be clearly understood, below according to specific embodiment also by reference to the accompanying drawings, the present invention is further detailed explanation, wherein:
Fig. 1 is method structured flowchart of the present invention;
Fig. 2 is the concrete structure schematic diagram extruding fillet drift in the present invention;
Fig. 3 is the present invention's structural representation when extruding fillet drift and extrusion tooling Combined machining.
Detailed description of the invention
(embodiment 1)
Fig. 1 to Fig. 3 shows a kind of detailed description of the invention of the present invention, and wherein Fig. 1 is method structured flowchart of the present invention; Fig. 2 is the concrete structure schematic diagram extruding fillet drift in the present invention; Fig. 3 is the present invention's structural representation when extruding fillet drift and extrusion tooling Combined machining.
See Fig. 1 to Fig. 3, wherein in Fig. 3, drawing reference numeral 3 is hanger workpiece, a kind of hanger aperture rounding method, comprises extruding fillet drift 1 and extrusion tooling 2, comprises the following steps
Steps A, carries out roughing by hanger, completes the processing to hanger press mounting hole, processes little chamfering in the aperture of press mounting hole simultaneously;
Step B, is placed in extrusion tooling by the hanger in steps A with little chamfering aperture, uses copper rod to knock the top of extruding fillet drift, makes extruding fillet drift coordinate extrusion tooling that the little chamfering in aperture is squeezed out level and smooth knuckle by cold-extruded platen press.
Described extruding fillet drift 1 comprises drift force column 11, be arranged on the drift baffle plate 12 of described drift force column 11 lower end and be arranged on the fillet punch body 13 of nest plate 12 lower end, the diameter of described fillet punch body 13 is that 40.5mm is arranged, the height of described drift force column 11 is that 65mm is arranged, the thickness of described drift baffle plate 12 is that 15mm is arranged, and the diameter of described drift force column 11 is that 50mm is arranged.
Described extrusion tooling 2 comprises base 21 and is vertically arranged on the force-bearing base 22 on base 21, the height of described force-bearing base is identical with the length of hanger press mounting hole, when described fillet punch body enters hanger press mounting hole, the end face that the lower surface of described drift plate washer is pressed on force-bearing base realizes fillet depth localization.
In described steps A, hanger press mounting hole is that broaching machine broaching is shaping.
Obviously, the above embodiment of the present invention is only for example of the present invention is clearly described, and is not the restriction to embodiments of the present invention.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all embodiments.And these belong to connotation of the present invention the apparent change of extending out or variation still belong to protection scope of the present invention.
Claims (4)
1. a hanger aperture rounding method, comprises extruding fillet drift and extrusion tooling, it is characterized in that: comprise the following steps
Steps A, carries out roughing by hanger, completes the processing to hanger press mounting hole, processes little chamfering in the aperture of press mounting hole simultaneously;
Step B, is placed in extrusion tooling by the hanger in steps A with little chamfering aperture, uses copper rod to knock the top of extruding fillet drift, makes extruding fillet drift coordinate extrusion tooling that the little chamfering in aperture is squeezed out level and smooth knuckle by cold-extruded platen press.
2. hanger aperture according to claim 1 rounding method, it is characterized in that: described extruding fillet drift comprises drift force column, be arranged on the drift baffle plate of described drift force column lower end and be arranged on the fillet punch body of nest plate lower end, the diameter of described fillet punch body is that 40.5mm is arranged, the height of described drift force column is that 65mm is arranged, the thickness of described drift baffle plate is that 15mm is arranged, and the diameter of described drift force column is that 50mm is arranged.
3. hanger aperture according to claim 2 rounding method, it is characterized in that: the force-bearing base that described extrusion tooling comprises base and is vertically arranged on base, the height of described force-bearing base is identical with the length of hanger press mounting hole, when described fillet punch body enters hanger press mounting hole, the end face that the lower surface of described drift plate washer is pressed on force-bearing base realizes fillet depth localization.
4. hanger aperture according to claim 3 rounding method, is characterized in that: in described steps A, and hanger press mounting hole is that broaching machine broaching is shaping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410498208.0A CN105563012A (en) | 2014-09-26 | 2014-09-26 | Lifting lug orifice fillet method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410498208.0A CN105563012A (en) | 2014-09-26 | 2014-09-26 | Lifting lug orifice fillet method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105563012A true CN105563012A (en) | 2016-05-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410498208.0A Pending CN105563012A (en) | 2014-09-26 | 2014-09-26 | Lifting lug orifice fillet method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105563012A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3326820A1 (en) * | 1983-07-26 | 1985-02-07 | Alexander 8399 Ruhstorf Geyer | Device for machining bore edges |
| CN201338050Y (en) * | 2009-01-09 | 2009-11-04 | 嘉兴和新精冲科技有限公司 | Orifice chamfering or rounding die |
| CN102773725A (en) * | 2012-04-28 | 2012-11-14 | 苏州金牛精密机械有限公司 | Chamfering tool of orifice of small turning piece |
| CN103028623A (en) * | 2012-12-05 | 2013-04-10 | 柳州市桥厦工程管材有限公司 | Method for realizing upper/lower chamfering forming of pre-stressed anchorage device |
| CN203778561U (en) * | 2014-04-09 | 2014-08-20 | 重庆奥顺特机械制造有限公司 | Motorcycle clutch driven gear side hole chamfering device |
-
2014
- 2014-09-26 CN CN201410498208.0A patent/CN105563012A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3326820A1 (en) * | 1983-07-26 | 1985-02-07 | Alexander 8399 Ruhstorf Geyer | Device for machining bore edges |
| CN201338050Y (en) * | 2009-01-09 | 2009-11-04 | 嘉兴和新精冲科技有限公司 | Orifice chamfering or rounding die |
| CN102773725A (en) * | 2012-04-28 | 2012-11-14 | 苏州金牛精密机械有限公司 | Chamfering tool of orifice of small turning piece |
| CN103028623A (en) * | 2012-12-05 | 2013-04-10 | 柳州市桥厦工程管材有限公司 | Method for realizing upper/lower chamfering forming of pre-stressed anchorage device |
| CN203778561U (en) * | 2014-04-09 | 2014-08-20 | 重庆奥顺特机械制造有限公司 | Motorcycle clutch driven gear side hole chamfering device |
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| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160511 |
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| RJ01 | Rejection of invention patent application after publication |