CN1298782A - Technology for manufacturing front brake holder of bicycle - Google Patents
Technology for manufacturing front brake holder of bicycle Download PDFInfo
- Publication number
- CN1298782A CN1298782A CN 99125904 CN99125904A CN1298782A CN 1298782 A CN1298782 A CN 1298782A CN 99125904 CN99125904 CN 99125904 CN 99125904 A CN99125904 A CN 99125904A CN 1298782 A CN1298782 A CN 1298782A
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- CN
- China
- Prior art keywords
- stock
- ora terminalis
- side edges
- brake mount
- front fork
- 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.)
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Abstract
A manufacturing method of bicycle front fork brake seat is as follows: cut metal sheet into the blank which has two side edges and two end edges, there is folding seam between side edge and end edge, the blank is putin die cavity and pressed by punch die into form, the side edge and end edge are closely fitted. Said method is simple, can reduce production cost and reduce production time.
Description
The present invention relates to a kind of method for making of bicycle front fork brake mount.
The manufacture method of present finding brake mount, as shown in Figure 1, its generally be with take off cured manufacturing, generally forge or processing mode such as punching press for it, wherein take off cured manufacturing and be mode with the molten metal curing molding, its numerous and diverse trifling process is well imagined, and before its casting, must be poured into mould with wax water earlier, with the molten metal perfusion wherein, take off cured action by this again, reach the purpose of casting, not only processing procedure is time-consuming, and the cost of this lost wax casting is very high, and is very uneconomical.
If adopt general forging or impact style manufacturing, though can reduce its manufacturing cost, but the structural form of its punching press gained is not satisfactory, it is that the sheet stock is placed on the tool, again with the direct punch forming of drift, but with the brake mount of this moulding, the degree of depth of its inner rim arc is quite limited, so in the car body front fork is done relative welding, the area that offsets is therebetween limited to by this also, can not provide bigger bonding area to be strengthened; If the stock of this sheet cut out a bead, the mode punch forming of punching press by this again, though the inner edge that the brake mount of its gained can be darker, see outside its forging and pressing very coarse, so take a broad view of the method for making of present brake mount, necessary improvement.
The object of the present invention is to provide a kind of method for making of bicycle front fork brake mount, make the brake mount root edge have dark radian, make it when welding with front fork, can increase its affixed area, strengthening its structure, and this method for making is simple, can reduce production costs, reduce the production time.
Technical scheme of the present invention is:
A kind of method for making of bicycle front fork brake mount is characterized in that the steps include:
(1) sheet metal is cut into stock, this stock has both side edges and two ora terminalis, forms crease between lateral margin and ora terminalis;
(2) stock is placed carry out punch forming between slotted hole shape die cavity and punch die, stock lateral margin and ora terminalis are fitted tightly.
The method for making of described bicycle front fork brake mount is characterized in that: the both side edges of this stock and two ora terminalis are symmetry shape, form crease in the last edge place of this lateral margin and ora terminalis.
The method for making of described bicycle front fork brake mount is characterized in that: the both side edges of this stock is symmetry shape, and the ora terminalis in two ora terminalis forms prominent arcuation, and the other end forms crease, and this crease is between the tip of this both side edges.
Advantage of the present invention is:
1, can make the brake mount root edge have dark radian, make it the time, can increase bonding area therebetween relatively, so that structure-reinforced with the front fork solder bond.
2, have benefit attractive in appearance: very smooth when stock is subjected to punching press and during extensional, because of this stock is preset with crease, the both side edges of stock and ora terminalis is fitted tightly, and needn't impose any modification again, can be a precision and all structures of holding concurrently attractive in appearance.
3, meet economic benefit: its processing mode is simple, can produce in a large number, brake mount with method for making production of the present invention, having the brake mount of producing than general forging is good precision, produce brake mount than the dewaxing moulding and have better economic benefit, and the brake mount than general process for stamping production has the root edge of radian deeply, more meets practicality and economic benefit.
The present invention will with preferred embodiment attached with graphic detailed description as the back:
The drawing explanation of accompanying drawing:
Fig. 1 is known brake mount manufacturing flow chart.
Fig. 2 is the present invention's manufacturing flow chart.
Fig. 3 A-D is the schematic perspective view of manufacture method of the present invention.
Fig. 4 is another embodiment schematic diagram of stock of the present invention.
Fig. 5 is a finished product user mode schematic diagram of the present invention.
Please cooperate and consult Fig. 2,3, shown in 5, the method for making of bicycle front fork brake mount of the present invention is the stock 10 that earlier sheet material is cut into required form, make it to have to being referred to as both side edges 11 and ora terminalis 12, and each therebetween last edge place is formed with crease 13 respectively, and utilize the stretching technology of plastic working, on the mat one, bed die 20,30 punch die 21 is involutory with die cavity 31, and stock 10 that should be to be processed places therebetween, cooperate 21 pairs of die cavitys of punch die 31 to carry out punching press, then this stock 10 is squeezed among the die cavity 31, and with lateral margin 11 with ora terminalis 12 extruding and utilize the metal grain displacement to make the plastic deformation that is extension, to be shaped to brake mount 40.
Because of this stock 10 is provided with crease 13 in both side edges 11 and 12 of two ora terminalis, card closes shape to make the both side edges 11 of stock 10 form closely after punching press with ora terminalis 12, thereby make brake mount 40 form darker root edge radian 14, make it when carrying out solder bond with front fork 50, can increase bonding area relatively, structure is strengthened.
As shown in Figure 4, stock in the method for making of the present invention also can be cut into following shape, even this stock 60 has the both side edges 61 of symmetry, and be formed with the ora terminalis 62 of a prominent arcuation in one end place, the in addition end place of its correspondence then is formed with a crease 63, and crease 63 just is between both side edges 61 tips, is stamped after the moulding with the stock of this shape, make the both side edges 61 of stock 60 can form tight applying shape with one ora terminalis 62, the brake mount of institute's moulding also has above-mentioned effect.
Claims (3)
1, a kind of method for making of bicycle front fork brake mount is characterized in that the steps include:
(1) sheet metal is cut into stock, this stock has both side edges and two ora terminalis, forms crease between lateral margin and ora terminalis;
(2) stock is placed carry out punch forming between slotted hole shape die cavity and punch die, stock lateral margin and ora terminalis are fitted tightly.
2, the method for making of bicycle front fork brake mount according to claim 1 is characterized in that: the both side edges of this stock and two ora terminalis are symmetry shape, form crease in the last edge place of this lateral margin and ora terminalis.
3, the method for making of bicycle front fork brake mount according to claim 1 is characterized in that: the both side edges of this stock is symmetry shape, and the ora terminalis in two ora terminalis forms prominent arcuation, and the other end forms crease, and this crease is between the tip of this both side edges.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99125904 CN1105608C (en) | 1999-12-08 | 1999-12-08 | Technology for manufacturing front brake holder of bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99125904 CN1105608C (en) | 1999-12-08 | 1999-12-08 | Technology for manufacturing front brake holder of bicycle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1298782A true CN1298782A (en) | 2001-06-13 |
| CN1105608C CN1105608C (en) | 2003-04-16 |
Family
ID=5284221
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99125904 Expired - Fee Related CN1105608C (en) | 1999-12-08 | 1999-12-08 | Technology for manufacturing front brake holder of bicycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1105608C (en) |
-
1999
- 1999-12-08 CN CN 99125904 patent/CN1105608C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1105608C (en) | 2003-04-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |