WO2016186588A1 - Rectangular cross section hot forming tool with motion mechanism - Google Patents
Rectangular cross section hot forming tool with motion mechanism Download PDFInfo
- Publication number
- WO2016186588A1 WO2016186588A1 PCT/TR2015/000225 TR2015000225W WO2016186588A1 WO 2016186588 A1 WO2016186588 A1 WO 2016186588A1 TR 2015000225 W TR2015000225 W TR 2015000225W WO 2016186588 A1 WO2016186588 A1 WO 2016186588A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- mentioned
- punch
- die
- transfer block
- axle housing
- 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
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/20—Deep-drawing
- B21D22/30—Deep-drawing to finish articles formed by deep-drawing
-
- 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
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/02—Stamping using rigid devices or tools
- B21D22/06—Stamping using rigid devices or tools having relatively-movable die parts
-
- 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
Definitions
- This invention is related with the forming process and production method of the rectangular cross sectional area of the arms of the fabricated axle housings, which are used in heavy-duty commercial vehicles to carry the loads transfered from the chassis and the forces transfered through the wheel end.
- the specified invention is related with the forming process and production method of the fabricated axle housing halves and obtaining the desired geometry on the bending radius of the rectangular cross section of housing arms with the use of motion of the mechanism to the sides as the punch starts to close down on the die during the forming process, thus making the forming process a two-step process which is currently a four-step process.
- axle housings are one of the crucial elements which take part in heavy duty commercial vehicles. Therefore, all innovations and improvements on this element are of great importance when production costs and the increase in useful load are taken into account.
- the most important criterion for the axle housings which are used in modern heavy duty commercial vehicles is weight. Production of axle housings with a single sheet thickness value creates an unnecessary weight increase for the axle housing. The increase in the weight of axle housing not only decreases the useful load but also creates unnecessary production costs.
- the current application of hot forming process of axle housing halves on the press consists of four steps which includes two initial forming steps and two truncated radius forming steps. These four steps can be described as; first step being initial forming, second step being ironing and weld groove forming, third step being ring side rectangular cross section truncated radius forming and fourth step being cover side rectangular cross section truncated radius forming.
- the aim of the 3. and 4. steps are to increase the durability of spring seat contact surfaces and to strengthen the rectangular cross section. Since the current applications has many forming steps, the operation time is longer and force required is higher due to the decrease in the workpiece temperature during the operation.
- the aim of the invention is to reduce the current number of steps for forming operation of the axle housing halves from four to two steps.
- the aim of the invention is to do savings on time with the reduction on number of steps and consequently to increase efficiency.
- Another aim of the invention is to decrease the force required for pressing and to increase the press machine life.
- the aim of the invention is to decrease the production costs close to 50 % with the reduction on number of steps for the process.
- Another aim of the invention is to have balanced, well distributed and less pressing force for the operation. Since there are less number of steps for the operation and the workpiece is at a higher temperature, less pressing force will be enough for forming operation.
- Another aim of the invention is to decrease hot forming tooling costs. Unlike the previous applications, the operation is performed with only one hot forming tool.
- Another aim of the invention is to decrease maintenance costs and time required to mount the hot forming tool to the press, since there is not a second tool which is used for truncated radius forming.
- Another aim of the invention is to obtain longer service life and more durable axle housing halves which can undertake the same task despite the fact that the number of steps for forming operation is decreased.
- FIGURES RELATED WITH THE INVENTION FIGURE -1; Top view of the die for fabricated axle housing.
- FIGURE -2 Top view of the punch for fabricated axle housing.
- FIGURE -3 Drawing of the plate for fixing the punch mechanism in the truncated radius forming group.
- FIGURE -4 Drawing of the rectangular cross section die in the truncated radius forming group.
- FIGURE -5 Drawing of the lifter spring in the truncated radius forming group.
- FIGURE -6 Drawing of the adjuster bolt in the truncated radius forming group.
- FIGURE -7 Drawing of the punch jaw in the truncated radius forming group.
- FIGURE -8 Drawing of the dove tail on the motion transfer block in the truncated radius forming group.
- This invention is a new system for the forming process of the rectangular cross sectional area of the arms of fabricated axle housing halves, which are used in heavy-duty commercial vehicles to carry the loads transfered from the chassis and the forces transfered through the wheel end.
- the system consists of; plate (110) which supports the mechanism on the punch (150) that is mounted on the hydraulic press, die (120) which the unformed fabricated axle housing half (100) is placed in and which forms the unformed fabricated axle housing half (100), punch (150) which fits in the die (120) that is used to form the unformed fabricated axle housing half (100), an angular motion transfer block (160) which is used to position the punch (150) inside the die (120) and to apply pressure to the to the sides of the die (120), lifting springs (130) located on the punch (150) which are used to apply lifting force on the punch (150) after the forming process, spring adjuster bolts (140) passing through the plate (110) and located on the motion transfer block (160) and punch (150) which are
- the system also consists of, punch guide slot (151) located on the punch (150) which is used to position the motion transfer block (160) and guide its motion, motion transfer wedge dove tail (161) positioned on the die (120) which is used to apply angular force to the punch (150) on the horizontal axis and which positions the punch (150) laterally on the die (120), punch jaw (152) located on the punch (150) and angled outwards which is used to apply horizontal force on the bottom of die (120), weld groove forming region (153) located on the punch (150) which is used to form the weld groove on the upper side of the fabricated axle housing half (100) that eases the welding operation.
- Die (120) and punch (150) are shown on the Figure-1 and Figure-2.
- Die (120) whose cross section is shown on the Figure-4 is positioned on the ground, and unformed fabricated axle housing half (100) is placed inside the die (120).
- punch (150) whose cross section is shown on Figure-7 is placed.
- Lifting springs (130) which are shown on Figure-5 are placed on the punch (150), and motion transfer block (160) which is shown on the Figure-8 and Figure-9 is placed on the lifting springs (130).
- the plate (110) which is shown on the Figure-3 is placed on the motion transfer block (160) and, spring adjuster bolt (140) which is shown on the Figure-6 is connected to the motion transfer block (160) and punch (150) passing through the plate (110).
- Spring adjuster bolt (140) is also used for adjusting the pushing action of the lifting spring (130).
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
This invention is related with the forming process and production method of the rectangular cross sectional area of the arms of the fabricated axle housing halves (100), which are used in heavy-duty commercial vehicles to carry the loads transferred from the chassis and the forces transferred through the wheel end. Mentioned invention is related with the press forming operation system and production process of fabricated axle housing halves, with the utilization of the forming mechanisms located on the punch (150) which moves to the sides and forms the bending radius area of the rectangular cross section of axle housing half as the hot forming tool is closed, which consequently reduces the number of work steps to two instead of four, by eliminating two steps necessary only for truncated radius forming operation.
Description
INSTRUCTIONS
RECTANGULAR CROSS SECTION HOT FORMING TOOL WITH MOTION MECHANISM TECHNICAL FIELD
This invention is related with the forming process and production method of the rectangular cross sectional area of the arms of the fabricated axle housings, which are used in heavy-duty commercial vehicles to carry the loads transfered from the chassis and the forces transfered through the wheel end.
The specified invention is related with the forming process and production method of the fabricated axle housing halves and obtaining the desired geometry on the bending radius of the rectangular cross section of housing arms with the use of motion of the mechanism to the sides as the punch starts to close down on the die during the forming process, thus making the forming process a two-step process which is currently a four-step process.
BACKGROUND OF THE INVENTION Currently, fabricated axle housings are one of the crucial elements which take part in heavy duty commercial vehicles. Therefore, all innovations and improvements on this element are of great importance when production costs and the increase in useful load are taken into account. The most important criterion for the axle housings which are used in modern heavy duty commercial vehicles is weight. Production of axle housings with a single sheet thickness value creates an unnecessary weight increase for the axle housing. The increase in the weight of axle housing not only decreases the useful load but also creates unnecessary production costs.
The current application of hot forming process of axle housing halves on the press consists of four steps which includes two initial forming steps and two truncated radius forming steps. These four steps can be described as; first step being initial forming, second step being ironing and weld groove forming, third step being ring side rectangular cross section truncated radius forming and fourth step being cover side rectangular cross section truncated radius forming. The aim of the 3. and 4. steps are to increase the durability of spring seat contact surfaces and to strengthen the rectangular cross section.
Since the current applications has many forming steps, the operation time is longer and force required is higher due to the decrease in the workpiece temperature during the operation.
AIM OF THE INVENTION
The aim of the invention is to reduce the current number of steps for forming operation of the axle housing halves from four to two steps.
The aim of the invention is to do savings on time with the reduction on number of steps and consequently to increase efficiency. Another aim of the invention is to decrease the force required for pressing and to increase the press machine life.
The aim of the invention is to decrease the production costs close to 50 % with the reduction on number of steps for the process.
Another aim of the invention is to have balanced, well distributed and less pressing force for the operation. Since there are less number of steps for the operation and the workpiece is at a higher temperature, less pressing force will be enough for forming operation.
Another aim of the invention is to decrease hot forming tooling costs. Unlike the previous applications, the operation is performed with only one hot forming tool.
Another aim of the invention is to decrease maintenance costs and time required to mount the hot forming tool to the press, since there is not a second tool which is used for truncated radius forming.
Another aim of the invention is to obtain longer service life and more durable axle housing halves which can undertake the same task despite the fact that the number of steps for forming operation is decreased.
FIGURES RELATED WITH THE INVENTION
FIGURE -1; Top view of the die for fabricated axle housing.
FIGURE -2; Top view of the punch for fabricated axle housing.
FIGURE -3; Drawing of the plate for fixing the punch mechanism in the truncated radius forming group.
FIGURE -4; Drawing of the rectangular cross section die in the truncated radius forming group.
FIGURE -5; Drawing of the lifter spring in the truncated radius forming group.
FIGURE -6; Drawing of the adjuster bolt in the truncated radius forming group.
FIGURE -7; Drawing of the punch jaw in the truncated radius forming group.
FIGURE -8; Drawing of the dove tail on the motion transfer block in the truncated radius forming group.
REFERENCE NUMBERS
100. Fabricated Axle Housing Half - Radius not Formed
105. Fabricated Axle Housing Half - Radius Formed
110. Plate
111. Plate Mounting Surface
120. Die
130. Lifting Spring
140. Spring Adjuster Bolt
150. Punch
151. Punch Guide Slot
152. Punch Jaw
153. Weld Groove Forming Region
160. Motion Transfer Block
161. Motion Transfer Wedge Dove Tail
DETAILED DESCRIPTION OF THE INVENTION
This invention is a new system for the forming process of the rectangular cross sectional area of the arms of fabricated axle housing halves, which are used in heavy-duty commercial vehicles to carry the loads transfered from the chassis and the forces transfered through the wheel end. The system consists of; plate (110) which supports the mechanism on the punch (150) that is mounted on the hydraulic press, die (120) which the unformed fabricated axle housing half (100) is placed in and which forms the unformed fabricated axle housing half (100), punch (150) which fits in the die (120) that is used to form the unformed fabricated axle housing half (100), an angular motion transfer block (160) which is used to position the punch (150) inside the die (120) and to apply pressure to the to the sides of the die (120), lifting springs (130) located on the punch (150) which are used to apply lifting force on the punch (150) after the forming process, spring adjuster bolts (140) passing through the plate (110) and located on the motion transfer block (160) and punch (150) which are used to adjust the pushing distance of the lifting springs (130).
The system also consists of, punch guide slot (151) located on the punch (150) which is used to position the motion transfer block (160) and guide its motion, motion transfer wedge dove tail (161) positioned on the die (120) which is used to apply angular force to the punch (150) on the horizontal axis and which positions the punch (150) laterally on the die (120), punch jaw (152) located on the punch (150) and angled outwards which is used to apply horizontal force on the bottom of die (120), weld groove forming region (153) located on the punch (150) which is used to form the weld groove on the upper side of the fabricated axle housing half (100) that eases the welding operation.
Die (120) and punch (150) are shown on the Figure-1 and Figure-2. During the production die (120) whose cross section is shown on the Figure-4 is positioned on the ground, and unformed fabricated axle housing half (100) is placed inside the die (120). After positioning the unformed fabricated axle housing half (100) inside the die (120), punch (150) whose cross section is
shown on Figure-7 is placed. Lifting springs (130) which are shown on Figure-5 are placed on the punch (150), and motion transfer block (160) which is shown on the Figure-8 and Figure-9 is placed on the lifting springs (130). The plate (110) which is shown on the Figure-3 is placed on the motion transfer block (160) and, spring adjuster bolt (140) which is shown on the Figure-6 is connected to the motion transfer block (160) and punch (150) passing through the plate (110). Spring adjuster bolt (140) is also used for adjusting the pushing action of the lifting spring (130). After the parts are connected to each other, pressing force is applied on the plate (110) and, the motion of the punch (150) and punch guide slot (151) to the sides are provided with the use of the anglular surface of motion transfer block (160). On Figure-10 and Figure-11, different views are shown as one side is pressed and one side is not pressed. After the progression of the punch (150) to the empty areas around the outside mould line on the die (120) is completed and positioned correctly, the press is lifted upwards and the motion of the punch (150) is carried out. After the upwards motion of the punch (150), forming operation is completed with the pushing force applied by the lifting springs (130) on the formed fabricated axle housing half (105).
Claims
1. This invention is a system which is used for forming the rectangular cross sectional area of the arms of the fabricated axle housings, which are used in heavy-duty commercial vehicles to carry the loads transfered from the chassis and the forces transfered through the wheel end, and it is characterised by the inclusion of;
• die (120) which the unformed fabricated axle housing half (100) is placed in and which forms the unformed fabricated axle housing half (100),
• punch (150) which fits in the mentioned die (120) that is used to form the unformed fabricated axle housing half (100), · plate (110) which supports the mechanism on the mentioned punch (150) that is mounted on the hydraulic press,
• motion transfer block (160) which is used to position the mentioned punch (150) inside the mentioned die (120) and to apply pressure to the to the sides of the mentioned die (120), · lifting springs (130) located on the mentioned punch (150) which are used to apply lifting force on the mentioned punch (150) after the forming process,
• spring adjuster bolts (140) passing through the mentioned plate (110) and located on the mentioned motion transfer block (160) and mentioned punch (150) which are used to adjust the pushing distance of the mentioned lifting springs (130),
2. Punch (150) which is compatible with Claim-1 and characterised by the inclusion of punch guide slot (151) located on the mentioned punch (150) which is used to position the mentioned motion transfer block (160) and guide its motion.
3. Motion transfer block (160) which is compatible with Claim-1 and characterised by the inclusion of motion transfer wedge dove tail (161) positioned on the mentioned die (120) which is used to apply angular force to the mentioned punch (150) on the horizontal axis and which positions the mentioned punch (150) laterally on the mentioned die (120).
4. Motion transfer block (160) which is compatible with Claim-l and characterised by the angled form of the mentioned motion transfer block (160).
5. Punch (150) which is compatible with Claim-l and characterised by the inclusion of punch jaw (152) located on the mentioned punch (150) which is used to apply horizontal force on the bottom of mentioned die (120).
6. Punch (150) which is compatible with Claim-l and Claim-5 and characterised by the mentioned outwards angled punch jaws (152) which are located on the mentioned punch (150).
7. Punch (150) which is compatible with Claim-l and characterised by the inclusion of weld groove forming region (153) located on the mentioned punch (150) which is used to form the weld groove on the upper side of the fabricated axle housing half (100) that eases the welding operation.
8. This invention is a sheet metal forming method which is used for forming the rectangular cross sectional area of the arms of the fabricated axle housings, which are used in heavy-duty commercial vehicles to carry the loads transfered from the chassis and the forces transfered through the wheel end, and it is characterised by inclusion of work steps which are;
• positioning of the die (120) on the ground,
• positioning of the unformed fabricated axle housing half (100) inside the mentioned die (120),
• positioning of the punch (150) after the positioning of unformed fabricated axle housing half inside the mentioned die (120),
• positioning of the lifting springs (130) on the mentioned punch (150),
• positioning of the motion transfer block (160) on the mentioned lifting springs (130),
• positioning of the plate (110) on the mentioned motion transfer block (160),
• adjusting the pushing action of the mentioned lifting springs (130) by passing the spring adjuster bolts (140) through the mentioned piate (110) and by locating on the mentioned motion transfer block (160) and mentioned punch (150),
• application of pressing process on mentioned plate (110),
• motion of mentioned punch (150) and motion of mentioned motion transfer block to the sides on the punch guide slot (151) which is on the mentioned punch (150) due to the angled surface of the mentioned motion transfer block (160), · progression of the mentioned punch (150) to the empty areas around the outside mould line on the mentioned die (120) and positioning correctly,
• lifting of press upwards after positioning,
• upwards motion of mentioned punch (150),
• application of pushing force on the formed fabricated axle housing half (105) by mentioned lifting springs (130) after the upwards motion of mentioned punch (150),
• completion of forming operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/TR2015/000225 WO2016186588A1 (en) | 2015-05-21 | 2015-05-21 | Rectangular cross section hot forming tool with motion mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/TR2015/000225 WO2016186588A1 (en) | 2015-05-21 | 2015-05-21 | Rectangular cross section hot forming tool with motion mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2016186588A1 true WO2016186588A1 (en) | 2016-11-24 |
Family
ID=53490228
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/TR2015/000225 WO2016186588A1 (en) | 2015-05-21 | 2015-05-21 | Rectangular cross section hot forming tool with motion mechanism |
Country Status (1)
| Country | Link |
|---|---|
| WO (1) | WO2016186588A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109954769A (en) * | 2019-04-30 | 2019-07-02 | 冯程阳 | A kind of stamping parts punching press method for controlling springback |
| CN112453238A (en) * | 2020-11-17 | 2021-03-09 | 燕山大学 | Stamping forming method of integral axle housing bridge package |
| CN113857352A (en) * | 2021-09-27 | 2021-12-31 | 潍坊青特车桥有限公司 | Precise shaping shearing straight seam die, manufacturing system of stamping axle housing sheet and using method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5406819A (en) * | 1991-12-31 | 1995-04-18 | Wang; Xiandong | Method and equipment for forming the axle housing of an automobile using an integral steel tube |
| US5970776A (en) * | 1997-02-28 | 1999-10-26 | Unisia Jecs Corporation | Apparatus for forming a cup-shaped cage |
-
2015
- 2015-05-21 WO PCT/TR2015/000225 patent/WO2016186588A1/en active Application Filing
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5406819A (en) * | 1991-12-31 | 1995-04-18 | Wang; Xiandong | Method and equipment for forming the axle housing of an automobile using an integral steel tube |
| US5970776A (en) * | 1997-02-28 | 1999-10-26 | Unisia Jecs Corporation | Apparatus for forming a cup-shaped cage |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109954769A (en) * | 2019-04-30 | 2019-07-02 | 冯程阳 | A kind of stamping parts punching press method for controlling springback |
| CN109954769B (en) * | 2019-04-30 | 2020-05-05 | 安徽和泰汽车配件股份有限公司 | Stamping part stamping springback control method |
| CN112453238A (en) * | 2020-11-17 | 2021-03-09 | 燕山大学 | Stamping forming method of integral axle housing bridge package |
| CN112453238B (en) * | 2020-11-17 | 2023-06-16 | 燕山大学 | Stamping forming method of integral axle housing and axle package |
| CN113857352A (en) * | 2021-09-27 | 2021-12-31 | 潍坊青特车桥有限公司 | Precise shaping shearing straight seam die, manufacturing system of stamping axle housing sheet and using method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5426656B2 (en) | Double occlusion hydraulic die set | |
| CN209319280U (en) | A kind of positioning device for mechanical machining | |
| CN112872152B (en) | Stamping device for sheet metal parts | |
| WO2016186588A1 (en) | Rectangular cross section hot forming tool with motion mechanism | |
| CN203578572U (en) | Multi-boss one-step molding die for enclosure of automobile starter | |
| CN102366885A (en) | Nut press mounting mould | |
| CN106583567A (en) | Anti-deformation machining die | |
| CN102189428B (en) | Positioning device for automatically centering pore of casting | |
| CN201596742U (en) | Integrated forging die for automobile knuckles | |
| CN108097792A (en) | A kind of processing technology of Automobile Chassis Parts | |
| KR102041038B1 (en) | Rivet coupling apparatus of vertical pressing type | |
| CN102500692A (en) | Mould of beading groove at end part of heavy type plate spring | |
| CN202343712U (en) | Mold for heavy-duty plate spring end part pressed rib groove | |
| CN204122537U (en) | Bender | |
| CN103447708A (en) | Method of preventing welding deformation of steel plate base for steel structure having steel plate base | |
| JP2011041967A (en) | Die for press working | |
| CN111633115B (en) | Die structure of plate resilience experiment capable of realizing switching of various stamping processes | |
| CN210586795U (en) | Positioning block of tilting press suitable for hinged plate | |
| CN100457316C (en) | Fixture and mold for wheel web of truck | |
| CN205290239U (en) | Electric automobile girder welding jig | |
| CN109968009B (en) | Die of front bumper energy-absorbing box riveting assembly | |
| KR101577707B1 (en) | burring apparatus | |
| CN215746193U (en) | Hot stamping and forging die demoulding device | |
| CN110695285A (en) | Lower die for metal forging and stamping | |
| CN213033456U (en) | Mounting sleeve hole expanding tool |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 15732075 Country of ref document: EP Kind code of ref document: A1 |
|
| NENP | Non-entry into the national phase |
Ref country code: DE |
|
| 122 | Ep: pct application non-entry in european phase |
Ref document number: 15732075 Country of ref document: EP Kind code of ref document: A1 |