WO1997031731A1 - Wheel rim manufacture - Google Patents
Wheel rim manufacture Download PDFInfo
- Publication number
- WO1997031731A1 WO1997031731A1 PCT/GB1997/000526 GB9700526W WO9731731A1 WO 1997031731 A1 WO1997031731 A1 WO 1997031731A1 GB 9700526 W GB9700526 W GB 9700526W WO 9731731 A1 WO9731731 A1 WO 9731731A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- wheel rim
- manufacturing
- mark
- strip
- rim
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D53/00—Making other particular articles
- B21D53/26—Making other particular articles wheels or the like
- B21D53/30—Making other particular articles wheels or the like wheel rims
Definitions
- This invention relates to wheel rim manufacture.
- a wheel rim particularly for the wheel of a car or other road vehicle, is conventionally manufactured by cutting steel strip to the required length, forming the strip into a hoop so that the two ends abut one another, and joining the ends together by a butt weld. Subsequent process operations include shaping or forming the hoop to form the flanges, bead seats and well of the rim, forming a hole in the rim for receiving an inflation valve, and testing the butt weld for any leaks.
- One method of locating the weld comprises shining a narrow light beam at the rim, receiving the reflected beam and detecting when the reflected beam is disturbed by the butt weld.
- the reflected beam is disturbed by a foreign body on the rim such as dirt or a patch of oil with the result that the subsequent operations which are required to be carried out at locations accurately measured from the weld are not so carried out.
- the rim is thus manufactured in a faulty condition and has to be rejected .
- a method of manufacturing a wheel rim comprises cutting steel strip to the required length, applying a mark to the strip at an accurately predetermined distance from an end of the length of strip and using the mark as a datum in any subsequent manufacturing operation required to be carried out at an accurately determined position on the rim with respect to the end.
- the mark may be applied after the end has been joined to the other end of the strip.
- the mark may be in the form of a small indentation applied to a surface of the strip which is preferably the radially outer but may also be the radially inner surface of the finished rim.
- the indentation may be applied by any suitable indentation tool such as a punch or a drill.
- the indentation is preferably detectable by an eddy-current detector or other suitable device.
- the mark may be in the form of an ink dot or line applied to the surface.
- the ink may be a magnetic ink so the mark is detectable by a suitable magnetic detecting device.
- a wheel rim 10 comprises a well 12, two bead seats 14, 15 and two flanges 16,17.
- a mark in the form of a small indentation 18 is applied to the outer surface of the rim in the well 12 at an accurately measured distance e g 20 mm from the weld joining the two ends of the length of steel strip from which the rim is formed.
- the indentation is applied by means of a small indenting punch.
- the position of the indentation is detected accurately by means of an eddy-current detecting device and the rim then rotated by a predetermined amount so that the point at which it is required to form a hole (not shown) for an inflation valve is moved beneath a hole forming tool, and the hole formed.
- the point for the hole is often diametrically opposite the weld so the point is thus half the rim well circumference ⁇ 20 mm (depending on the direction of rotation of the rim) away from the weld.
- the last stages of the manufacturing process include various control checks, for example checking to ensure that the weld does not leak.
- various control checks for example checking to ensure that the weld does not leak.
- the mark is detected by an eddy-current detecting device, one side of the rim is pressurised and the leak detector placed 20 mm circumferentially from the detected mark i.e. immediately adjacent the weld.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
- Length Measuring Devices By Optical Means (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
Abstract
Method for manufacturing a wheel rim comprises cutting steel strip to the required length, applying a mark (18) to the strip at an accurately predetermined distance from an end of the length of the strip and using the mark (18) as a datum in any subsequent manufacturing operation required to be carried out at an accurately determined position on the rim with respect to the end.
Description
WHEEL RIM MANUFACTURE
This invention relates to wheel rim manufacture.
A wheel rim, particularly for the wheel of a car or other road vehicle, is conventionally manufactured by cutting steel strip to the required length, forming the strip into a hoop so that the two ends abut one another, and joining the ends together by a butt weld. Subsequent process operations include shaping or forming the hoop to form the flanges, bead seats and well of the rim, forming a hole in the rim for receiving an inflation valve, and testing the butt weld for any leaks.
Some of the subsequent process operations need to be carried out at particular locations on the rim and the butt weld is used as a datum. Thus the butt weld has to be located accurately.
One method of locating the weld comprises shining a narrow light beam at the rim, receiving the reflected beam and detecting when the reflected beam is disturbed by the butt weld. However sometimes the reflected beam is disturbed by a foreign body on the rim such as dirt or a patch of oil with the result that the subsequent operations which are required to be carried out at locations accurately measured from the weld are not so carried out. The rim is thus manufactured in a faulty condition and has to be rejected .
One method of overcoming this problem was to form the hole for receiving the valve in the rim immediately after the butt welding had been carried out, the hole being located at an accurate predetermined distance from the weld, and the hole rather than the weld being used as the datum. However subsequent forming operations can cause distortion of the hole causing it to be unsuitable so again the rim has to be rejected.
It is an object of the present invention to provide a method of manufacturing a wheel rim which substantially overcomes the aforementioned
disadvantages.
In accordance with the invention, a method of manufacturing a wheel rim comprises cutting steel strip to the required length, applying a mark to the strip at an accurately predetermined distance from an end of the length of strip and using the mark as a datum in any subsequent manufacturing operation required to be carried out at an accurately determined position on the rim with respect to the end.
The mark may be applied after the end has been joined to the other end of the strip.
The mark may be in the form of a small indentation applied to a surface of the strip which is preferably the radially outer but may also be the radially inner surface of the finished rim. The indentation may be applied by any suitable indentation tool such as a punch or a drill. The indentation is preferably detectable by an eddy-current detector or other suitable device. Alternatively the mark may be in the form of an ink dot or line applied to the surface. The ink may be a magnetic ink so the mark is detectable by a suitable magnetic detecting device.
One embodiment will now be described by way of example only with reference to the accompanying drawing of a wheel rim manufactured according to the invention.
As shown in the drawing a wheel rim 10 comprises a well 12, two bead seats 14, 15 and two flanges 16,17. During the course of manufacture a mark in the form of a small indentation 18 is applied to the outer surface of the rim in the well 12 at an accurately measured distance e g 20 mm from the weld joining the two ends of the length of steel strip from which the rim is formed. The indentation is applied by means of a small indenting punch.
At a later stage in the manufacture of the rim the position of the indentation is detected accurately by means of an eddy-current detecting
device and the rim then rotated by a predetermined amount so that the point at which it is required to form a hole (not shown) for an inflation valve is moved beneath a hole forming tool, and the hole formed. The point for the hole is often diametrically opposite the weld so the point is thus half the rim well circumference ± 20 mm (depending on the direction of rotation of the rim) away from the weld.
The last stages of the manufacturing process include various control checks, for example checking to ensure that the weld does not leak. In order to do this the mark is detected by an eddy-current detecting device, one side of the rim is pressurised and the leak detector placed 20 mm circumferentially from the detected mark i.e. immediately adjacent the weld.
Claims
1. A method of manufacturing a wheel rim comprising cutting steel strip to the required length, applying a mark to the strip at an accurately predetermined distance from an end of the length of the strip and using the mark as a datum in any subsequent manufacturing operation required to be carried out at an accurately determined position on the rim with respect to the end.
2. A method of manufacturing a wheel rim according to Claim 1 comprising applying the mark after the end has been joined to the other end of the strip.
3. A method of manufacturing a wheel rim wherein the mark is in the form of a small indentation applied to a surface of the strip.
4. A method of manufacturing a wheel rim according to Claim 3 wherein the surface is the radially outer surface of the finished rim.
5. A method of manufacturing a wheel rim according to Claim 3 wherein the surface is the radially inner surface of the finished rim.
6. A method of manufacturing a wheel rim according to any one of Claims 3, 4 or 5 comprising applying the indentation by means of a suitable indentation tool such as a punch or a drill.
7. A method of manufacturing a wheel rim according to any one of Claims 3 to 6 wherein the indentation is detectable by an eddy current detector or other suitable device.
8. A method of manufacturing a wheel rim according to Claim 1 or Claim 2 wherein the mark is in the form of an ink dot or line applied to a surface of the strip.
9. A method of manufacturing a wheel rim according to Claim 8 wherein the ink is a magnetic ink and the mark is detectable by a suitable magnetic detecting device.
10. A method of manufacturing a wheel rim substantially as described herein with reference to and as illustrated in the accompanying drawing.
1 1 . A wheel rim manufactured by means of a method according to any one of the preceding claims.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9604214A GB2310639A (en) | 1996-02-28 | 1996-02-28 | Wheel rim manufacture |
GB9604214.8 | 1996-02-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1997031731A1 true WO1997031731A1 (en) | 1997-09-04 |
Family
ID=10789552
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/GB1997/000526 WO1997031731A1 (en) | 1996-02-28 | 1997-02-25 | Wheel rim manufacture |
Country Status (2)
Country | Link |
---|---|
GB (1) | GB2310639A (en) |
WO (1) | WO1997031731A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104540612A (en) * | 2012-08-07 | 2015-04-22 | 都美工业株式会社 | Method for manufacturing wheel rim for wheel |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2357052A (en) * | 1999-12-10 | 2001-06-13 | Chen Chien Cheng | Aluminium rim and its method of manufacture |
CN111958178B (en) * | 2020-07-07 | 2022-01-18 | 东风汽车底盘系统有限公司 | Method for manufacturing wheel rim |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DD100412B (en) * | ||||
US4072117A (en) * | 1976-09-15 | 1978-02-07 | Seal-Spout Corporation | Canister indexing spout-inserting machine |
FR2413226A1 (en) * | 1977-12-28 | 1979-07-27 | Dunlop Sa | Vehicle wheel consisting of rim spot welded to central disc - using indentations in rim and/or disc to reinforce the wheel |
JPS5939432A (en) * | 1982-08-25 | 1984-03-03 | Nissan Motor Co Ltd | Production of rim for load wheel |
JPH01205827A (en) * | 1988-02-12 | 1989-08-18 | Sumitomo Metal Ind Ltd | Automatic marking press for thread cutting part of steel pipe |
US5035569A (en) * | 1989-05-16 | 1991-07-30 | Elpatronic Ag | Method and apparatus for positioning a can body |
JPH07270380A (en) * | 1994-03-31 | 1995-10-20 | Topy Ind Ltd | Apparatus for detecting and positioning rim welded part for car |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1050786A (en) * | 1900-01-01 | |||
GB711614A (en) * | 1951-08-17 | 1954-07-07 | Jan Van Schothorst | Improvements in and relating to electrical pressure welding of tire rims |
GB1390645A (en) * | 1972-06-09 | 1975-04-16 | Norris Co Ltd Dc | Manufacture of annular metal rings and part annular metal components |
US4164133A (en) * | 1975-11-21 | 1979-08-14 | Holland Mechanics B.V. | Apparatus for forming circularly bent articles from a straight metal profiled strip |
-
1996
- 1996-02-28 GB GB9604214A patent/GB2310639A/en not_active Withdrawn
-
1997
- 1997-02-25 WO PCT/GB1997/000526 patent/WO1997031731A1/en active Application Filing
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DD100412B (en) * | ||||
US4072117A (en) * | 1976-09-15 | 1978-02-07 | Seal-Spout Corporation | Canister indexing spout-inserting machine |
FR2413226A1 (en) * | 1977-12-28 | 1979-07-27 | Dunlop Sa | Vehicle wheel consisting of rim spot welded to central disc - using indentations in rim and/or disc to reinforce the wheel |
JPS5939432A (en) * | 1982-08-25 | 1984-03-03 | Nissan Motor Co Ltd | Production of rim for load wheel |
JPH01205827A (en) * | 1988-02-12 | 1989-08-18 | Sumitomo Metal Ind Ltd | Automatic marking press for thread cutting part of steel pipe |
US5035569A (en) * | 1989-05-16 | 1991-07-30 | Elpatronic Ag | Method and apparatus for positioning a can body |
JPH07270380A (en) * | 1994-03-31 | 1995-10-20 | Topy Ind Ltd | Apparatus for detecting and positioning rim welded part for car |
Non-Patent Citations (3)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 008, no. 140 (M - 305) 29 June 1984 (1984-06-29) * |
PATENT ABSTRACTS OF JAPAN vol. 013, no. 512 (M - 893) 16 November 1989 (1989-11-16) * |
PATENT ABSTRACTS OF JAPAN vol. 096, no. 002 29 February 1996 (1996-02-29) * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104540612A (en) * | 2012-08-07 | 2015-04-22 | 都美工业株式会社 | Method for manufacturing wheel rim for wheel |
Also Published As
Publication number | Publication date |
---|---|
GB9604214D0 (en) | 1996-05-01 |
GB2310639A (en) | 1997-09-03 |
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