CN116571623A - Manufacturing process of high-strength wiper arm head - Google Patents
Manufacturing process of high-strength wiper arm head Download PDFInfo
- Publication number
- CN116571623A CN116571623A CN202310433133.7A CN202310433133A CN116571623A CN 116571623 A CN116571623 A CN 116571623A CN 202310433133 A CN202310433133 A CN 202310433133A CN 116571623 A CN116571623 A CN 116571623A
- Authority
- CN
- China
- Prior art keywords
- wiper arm
- arm head
- head
- forming
- strength
- 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.)
- Pending
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 21
- 238000000034 method Methods 0.000 claims abstract description 17
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 14
- 238000007493 shaping process Methods 0.000 claims abstract description 14
- 239000010959 steel Substances 0.000 claims abstract description 14
- 238000005452 bending Methods 0.000 claims abstract description 9
- 238000004080 punching Methods 0.000 claims abstract description 9
- 230000000750 progressive effect Effects 0.000 claims abstract description 8
- 238000005520 cutting process Methods 0.000 claims abstract description 4
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 3
- 238000000465 moulding Methods 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 4
- 229910001297 Zn alloy Inorganic materials 0.000 abstract description 8
- 239000000047 product Substances 0.000 description 7
- 238000003754 machining Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000004512 die casting Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000011265 semifinished product Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
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
- B21D35/00—Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
- B21D35/001—Shaping combined with punching, e.g. stamping and perforating
-
- 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
- B21D35/00—Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
- B21D35/002—Processes combined with methods covered by groups B21D1/00 - B21D31/00
-
- 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
- B21D53/88—Making other particular articles other parts for vehicles, e.g. cowlings, mudguards
Abstract
A manufacturing process of a high-strength wiper arm head comprises the following steps: adopting steel coil stock, and then using a progressive die to punch on punching equipment to integrally form the steel coil stock; the process steps are as follows: blanking and forming the tail part of the head of the wiper arm, and continuously stretching and shaping the position of the taper hole; punching a taper hole at the tail part of the wiper arm head, forming the taper shape of the hole, and forming the whole contour of the wiper arm head by a reinforcing flanging at the tail part of the hole; bending and forming the appearance of the wiper arm head and flanging and forming the appearance; bending and forming a fixed clamping hook at the bottom of the wiper arm head, punching and shaping two holes of a drag hook rivet hole and a connecting hole at the head of the fixed clamping hook; shaping and rounding the angle of the fixed clamping hook; and finally, the high-strength finished product of the wiper arm head is manufactured by cutting and stripping the whole wiper arm head. The invention has the advantages of convenient manufacturing process, high production efficiency, light and thin whole wiper arm head finished product, good strength and small movement space, and the same shape is cheaper than a zinc alloy structure product, and the whole steel strength is better than the zinc alloy structure product.
Description
Technical Field
The invention relates to a manufacturing process of a wiper arm head of a wiper arm assembly applied to an automobile wiper.
Background
At present, a wiper (also called a wiper) is an indispensable part of an automobile, and the wiper is used for receiving power transmitted by a wiper motor and a connecting rod mechanism and generating wiper arm pressure at the same time, and wiping the windshield by a wiper blade so as to clean foreign matters on the windshield. A typical wiper blade is comprised of a plurality of subassemblies including a wiper motor, a linkage (including an output shaft) and wiper arm assembly, a wiper blade, a motor mounting plate assembly, and the like, and is also equipped with a wiper water spray device. The wiper arm assembly comprises a wiper arm head (also called a wiper joint) and an extension arm, the connecting structure of the wiper arm head is simple, and the wiper arm head is basically made of aluminum alloy and zinc alloy through die casting. The existing wiper arm head of the heavy truck is generally die-cast by zinc alloy, has molding height of more than 15mm in consideration of the problem of working strength, and is inconvenient to arrange when the space requirement of the hidden car body is high. After the die casting of the wiper arm head, machining treatment is needed to be performed by manufacturing tool equipment, the environment protection requirement is high, the price of zinc raw materials is higher and higher, the manufacturing cost and the production cost are both increased, and the strength is also not ideal.
Disclosure of Invention
In view of the technical problems existing at present, the invention provides the manufacturing process of the high-strength wiper arm head, which has the advantages of simple modeling, convenient manufacturing process, small forming height and occupied space and better strength of the wiper arm head.
The aim of the invention can be achieved by the following technical scheme: the manufacturing process of the high-strength wiper arm head comprises the following steps: firstly, adopting steel coiled materials, and then stamping the steel coiled materials on stamping equipment by using a progressive die to form an integrated structure through a plurality of procedures; the process steps are as follows:
1. blanking and forming the tail part of the head of the wiper arm; 2. continuous stretching of the tail taper hole position of the head of the wiper arm; 3. shaping the tail taper hole of the head of the wiper arm; 4. punching a tail taper hole of the head of the wiper arm and shaping the taper shape of the tail taper hole; 5. the method comprises the steps of (1) forming a reinforcing flanging at the tail part of the wiper arm head and the whole contour of the wiper arm head; 6. bending and forming the appearance of the wiper arm head; 7. the shape of the wiper arm head is flanging and forming; 8. bending and forming a fixed clamping hook at the bottom of the wiper arm head; 9. punching and shaping two holes of a drag hook rivet hole and a connecting hole of the head part of the wiper arm head; 10. shaping and rounding the angle of the fixed clamping hook; 11. and finally, the high-strength finished product of the wiper arm head is manufactured for integrally cutting and stripping the wiper arm head.
The model of the steel coil stock is DC04, and the thickness is 3-5mm. The overall molding height of the wiper arm head is controlled within 10 mm.
The invention adopts DC04 type steel coil stock to manufacture the progressive die, the progressive die is integrally formed by stamping, no later machining treatment is needed, the integral molding height of the wiper arm head is controlled within 10mm (comprising a middle bending part), the molding is simple, the manufacturing process is convenient, the equivalent molding is cheaper than a zinc alloy structural product, and the integral strength of steel is better than that of the zinc alloy structural product. The invention can be applied to heavy commercial vehicles, the finished product of the wiper arm head is light and thin in whole, good in strength and small in movement space, and particularly, the invention is more suitable for vehicles with high requirements on the movement space of the vehicle body, and the progressive die stamping is integrated into a whole, so that the production efficiency is high.
Drawings
Fig. 1 is a schematic structural view of a high-strength wiper arm head manufactured by the present invention.
Fig. 2 is a flow chart of a manufacturing process of the present invention.
Detailed Description
The invention is described in detail below with reference to the drawings and the detailed description.
As shown in fig. 1 and 2, the manufacturing process of the high-strength wiper arm head (also called a wiper joint) of the invention is as follows: firstly, steel coil stock is adopted, then a progressive die (3.6 m length) is used for stamping and integrally forming on stamping equipment (500 tons) through a plurality of procedures (34 procedures), and the procedures (eleven procedures) are as follows:
1. blanking and forming the tail part of the head of the wiper arm (1-3 procedures); 2. continuous stretching of the tail taper hole position of the head of the wiper arm (4-12 procedures); 3. shaping the tail taper hole position of the head of the wiper arm (13-16 procedures); 4. punching a tail taper hole 1a of the head of the wiper arm and forming the taper shape (17-19 steps); 5. the method comprises the steps of (1) forming the whole outline of the wiper arm head by a reinforced flanging at the tail part of the wiper arm head (20-22 steps); 6. bending and forming the shape of the wiper arm head (23-24 steps); 7. the outer shape of the wiper arm head is flanging and molded (25-28 procedures); 8. the fixed hooks 1b (three for fixing the wiper water outlet pipe) at the bottom (under the body) of the wiper arm head are bent and formed (29 steps); 9. punching and shaping two holes of a drag hook rivet hole 1c and a connecting hole (namely a bushing fixing hole) 1d of the head part of the wiper arm head (30-31 steps); 10. shaping and rounding the angle of the fixed hook 1b (three steps) and (32-33 steps); 11. and finally, the finished product of the high-strength wiper arm head (34 procedures) is obtained for integrally cutting and stripping the wiper arm head (semi-finished product). The model of the steel coil stock is DC04, and the thickness is 3-5mm. The overall molding height of the wiper arm head is controlled within 10mm (the seventh step is embodied).
As shown in fig. 1, a combination of a composite bushing and a pin is installed at one end (head part and left end part) of a high-strength wiper arm head 1 and at a joint with an extension arm through a connecting hole 1d, a drag hook rivet is installed at one end (head part) of the high-strength wiper arm head 1 and at a position close to the connecting hole through a drag hook rivet hole 1c, a taper hole 1a (used for connecting with a wiper output shaft) is arranged at the other end (tail part and right end part) of the high-strength wiper arm head 1, and a fixed clamping hook 1b (three parts) are arranged at the bottom (body part) of the high-strength wiper arm head 1 and used for installing a wiper outlet pipe, so that water outlet is hidden. The invention adopts DC04 type steel coil stock to manufacture progressive die stamping and integrally forms, does not need to carry out later machining treatment, controls the forming height of the wiper arm head within 10mm (comprising middle bending parts), has the same shape cheaper than zinc alloy structural products (about 5 yuan per piece), and has overall strength superior to zinc alloy structural products.
Claims (3)
1. The manufacturing process of the high-strength wiper arm head is characterized by comprising the following steps of: firstly, adopting steel coiled materials, and then stamping the steel coiled materials on stamping equipment by using a progressive die to form an integrated structure through a plurality of procedures; the process steps are as follows:
1. blanking and forming the tail part of the head of the wiper arm; 2. continuous stretching of the tail taper hole position of the head of the wiper arm; 3. shaping the tail taper hole of the head of the wiper arm; 4. punching a tail taper hole of the head of the wiper arm and shaping the taper shape of the tail taper hole; 5. the method comprises the steps of (1) forming a reinforcing flanging at the tail part of the wiper arm head and the whole contour of the wiper arm head; 6. bending and forming the appearance of the wiper arm head; 7. the shape of the wiper arm head is flanging and forming; 8. bending and forming a fixed clamping hook at the bottom of the wiper arm head; 9. punching and shaping two holes of a drag hook rivet hole and a connecting hole of the head part of the wiper arm head; 10. shaping and rounding the angle of the fixed clamping hook; 11. and finally, the high-strength finished product of the wiper arm head is manufactured for integrally cutting and stripping the wiper arm head.
2. The manufacturing process of the high-strength wiper arm head according to claim 1, wherein: the model of the steel coil stock is DC04, and the thickness is 3-5mm.
3. The manufacturing process of the high-strength wiper arm head according to claim 1 or 2, characterized in that: the overall molding height of the wiper arm head is controlled within 10 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310433133.7A CN116571623A (en) | 2023-04-16 | 2023-04-16 | Manufacturing process of high-strength wiper arm head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310433133.7A CN116571623A (en) | 2023-04-16 | 2023-04-16 | Manufacturing process of high-strength wiper arm head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116571623A true CN116571623A (en) | 2023-08-11 |
Family
ID=87538692
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310433133.7A Pending CN116571623A (en) | 2023-04-16 | 2023-04-16 | Manufacturing process of high-strength wiper arm head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116571623A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117225989A (en) * | 2023-11-15 | 2023-12-15 | 苏州铭峰精密机械有限公司 | Integral type wiper arm forming process |
-
2023
- 2023-04-16 CN CN202310433133.7A patent/CN116571623A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117225989A (en) * | 2023-11-15 | 2023-12-15 | 苏州铭峰精密机械有限公司 | Integral type wiper arm forming process |
| CN117225989B (en) * | 2023-11-15 | 2024-02-23 | 苏州铭峰精密机械有限公司 | Integral type wiper arm forming process |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination |