CN108326226B - Cold heading process and cold heading module for forming adjusting screw - Google Patents
Cold heading process and cold heading module for forming adjusting screw Download PDFInfo
- Publication number
- CN108326226B CN108326226B CN201810127096.6A CN201810127096A CN108326226B CN 108326226 B CN108326226 B CN 108326226B CN 201810127096 A CN201810127096 A CN 201810127096A CN 108326226 B CN108326226 B CN 108326226B
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- die
- upsetting
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- cold heading
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- 238000000034 method Methods 0.000 title claims abstract description 22
- 238000005516 engineering process Methods 0.000 claims abstract description 5
- 238000007493 shaping process Methods 0.000 claims abstract 2
- 230000007704 transition Effects 0.000 claims description 20
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000003754 machining Methods 0.000 abstract description 5
- 238000007514 turning Methods 0.000 abstract description 4
- 238000005520 cutting process Methods 0.000 abstract description 3
- 239000000463 material Substances 0.000 abstract description 3
- 238000004080 punching Methods 0.000 abstract description 3
- 238000012772 sequence design Methods 0.000 abstract 1
- 239000002994 raw material Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
- B21K1/00—Making machine elements
- B21K1/56—Making machine elements screw-threaded elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J13/00—Details of machines for forging, pressing, or hammering
- B21J13/02—Dies or mountings therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
- B21J5/06—Methods for forging, hammering, or pressing; Special equipment or accessories therefor for performing particular operations
- B21J5/08—Upsetting
Abstract
The invention relates to a cold heading process and a cold heading module for forming an adjusting screw. A cold heading process for forming an adjusting screw comprises the following steps: 1. cutting the wire; 2. a primary beam rod; 3. a secondary beam rod; 4. three times of rod bundling and one time of rough upsetting; 5. secondary upsetting; 6. chamfering and three times of upsetting; 7. upsetting the washer and bundle hexagon. A cold heading module for shaping adjusting screw is six moulds six towards cold heading moulds, and it includes first mould, second mould, third mould, fourth mould, fifth mould and sixth mould. The cold heading process and the cold heading module for forming the adjusting screw, disclosed by the invention, utilize the cold heading technology to finish all the dimensions of the adjusting screw, improve the machining efficiency, improve the mechanical property, save materials, ensure the integrity of a streamline, improve the efficiency, replace the traditional machining operations such as turning and punching, have clear and reasonable process step sequence design, ensure the dimensional accuracy, effectively reduce the production cost and meet the demands of customers.
Description
Technical Field
The invention relates to manufacturing of an adjusting screw for fixing a solar panel, in particular to a cold heading process and a cold heading module for forming the adjusting screw.
Background
Currently, with the development of solar panels, in order to fix the solar panels firmly, it is required to use an adjusting screw shown in fig. 3 to fix the solar panels, wherein the adjusting screw comprises a first portion a of Φ8.66, a second portion B of Φ13.5, a transitional third portion C, a fourth portion D of Φ14.4, a washer portion E of Φ17.2, a fifth portion F of Φ7.12, a sixth portion G of Φ5.91, and a hexagonal portion H; the requirement on the size is higher, the current processing mode generally adopts numerical control turning, then a washer E and a cold heading hexagonal part H are welded, and finally threads are formed, and the internal structure of the screw is not in a streamline trend and is not high in strength due to the use of the process, so that the mechanical property of the adjusting screw is influenced, the service life of the product is shortened, the process is complex, the production period is longer, the cost is overhigh, and the requirement of enterprises for reducing the cost is not met; and the cold heading technology is adopted for processing, and great difficulty is caused to the design of the cold heading die due to the complex structure of the adjusting screw and the requirement of multiple part sizes.
Disclosure of Invention
The invention provides a cold heading forming process and a cold heading module for an adjusting screw, which have the advantages of simple production process, short period, low cost, streamline internal structure and strength increase.
A cold heading process for forming an adjusting screw comprises the following steps: 1. preparing raw materials: cutting the wire rod to a required length; 2. carrying out primary rod binding on the wire rod cut in the step one through cold heading to form a sixth part; 3. carrying out secondary rod binding on the part processed in the second step through cold heading to form a fifth part; 4. carrying out third binding and first rough upsetting on the part processed in the third step through cold upsetting to form a first part and a first rough part; 5. upsetting the part processed in the fourth step for the second time through cold upsetting, and upsetting the primary thick part to form a secondary thick part; 6. chamfering and three times of upsetting are carried out on the part processed in the fifth step through cold upsetting, the second coarse part is upsetted to form a third coarse part, and the tail end of the sixth part is chamfered; 7. upsetting the washer and binding the hexagon of the part processed in the step six through cold heading, forming a second part, a third part, a fourth part and a washer part on the triple-rough part, and forming a hexagon part at the tail end of the sixth part, thus completing cold heading forming of the adjusting screw.
The cold heading die set for forming the adjusting screw is a six-die six-punch cold heading die set, and comprises a first die, a second die, a third die, a fourth die, a fifth die and a sixth die; the first die is used for carrying out primary beam rod on the part to form a sixth part; the second die is used for carrying out secondary beam rod on the part to form a fifth part; the third die is used for carrying out third binding rod and first rough upsetting on the part to form a first part and a first rough part; the fourth die is used for carrying out secondary upsetting on the part, and upsetting the primary thick part to form a secondary thick part; the fifth die is used for chamfering and three-time upsetting of the part, the second coarse part is upset to form a third coarse part, and the tail end of the sixth part is chamfered; the sixth die is used for upsetting the washer and the beam hexagon of the part, forming a second part, a third part, a fourth part and a washer part on the tertiary thick part, and forming a hexagon part at the tail end of the sixth part; the first die, the second die, the third die, the fourth die, the fifth die and the sixth die all comprise a stamping die and a main die; the stamping die comprises a stamping die sleeve, a stamping die cushion block positioned at the rear side of the stamping die sleeve and a stamping rod fixed at the front end of the stamping die sleeve; the main die comprises a main die shell, a main die upper section positioned at the front of the inner side of the main die shell, a main die lower section positioned at the rear of the inner side of the main die shell, a main die rear lock and a main die cushion block positioned at the rear side of the main die lower section, a main die thimble penetrating in the main die and a main die thimble sleeve fixed at the rear side of the main die thimble; a third beam rod cavity and a first left half upsetting cavity are arranged in the stamping die of the third die, a first right half upsetting cavity is also arranged in the main die of the third die, and the two first half upsetting cavities form a first upsetting cavity when the two first half upsetting cavities are matched; a second left half upsetting cavity is arranged in the stamping die of the fourth die, a second right half upsetting cavity is also arranged in the main die of the fourth die, and the two second half upsetting cavities form a second upsetting cavity when the dies are closed; a third upsetting cavity is formed in the stamping die of the fifth die, and a chamfering cavity is formed in the tail end of the part in the main die; a fourth upsetting cavity is formed in the stamping die of the sixth die, a washer cavity is formed between the stamping die and the main die when the stamping die is closed, and a hexagonal beam cavity is formed in the main die of the sixth die and located at the tail end of the part.
The main die of the first die further comprises a first beam rod cavity for carrying out first beam rod on the part to form a sixth part.
The main die of the second die further comprises a second beam rod cavity for carrying out second beam rod on the part to form a fifth part.
The left side of the first left half upsetting cavity and the right side of the first right half upsetting cavity of the third die are respectively provided with a transition inclined plane.
The taper angle formed by the transition inclined plane at the left side of the first left half upsetting cavity of the third die is 30 degrees, and the taper angle formed by the transition inclined plane at the right side of the first right half upsetting cavity is 80 degrees.
The left side of the second left half upsetting cavity and the right side of the second right half upsetting cavity of the fourth die are respectively provided with a transition inclined plane.
The taper angle formed by the transition inclined plane at the left side of the second left half upsetting cavity of the fourth die is 50 degrees, and the taper angle formed by the transition inclined plane at the right side of the second right half upsetting cavity is 80 degrees.
The left side of the third upsetting cavity of the fifth die is a right-angle plane, and no transition inclined plane exists.
The fourth upsetting cavity of the sixth die corresponds to the second portion, the third portion, and the fourth portion of the part.
The invention has the advantages that: the cold heading process and the cold heading module for forming the adjusting screw, disclosed by the invention, utilize the cold heading technology to finish all the sizes of the adjusting screw, integrate part of the process on one die for cold heading forming, not only can improve the processing efficiency, but also can ensure that the internal structure of the adjusting screw is more compact and presents a complete streamline trend to improve the mechanical property, save materials, ensure the streamline is complete, improve the efficiency, replace the traditional machining operations such as turning and punching, ensure the dimensional accuracy, effectively reduce the production cost and meet the demands of customers.
Drawings
FIG. 1 is a schematic flow chart of a cold heading process for forming an adjusting screw according to an embodiment;
FIG. 2 is a schematic diagram of a cold heading module for forming an adjusting screw according to an embodiment;
FIG. 3 is a schematic view of an adjustment screw;
fig. 4 is an enlarged schematic view of the hexagonal portion of fig. 3.
Detailed Description
The present invention will be further described in detail with reference to the drawings and examples, which are only for the purpose of illustrating the invention and are not to be construed as limiting the scope of the invention.
Examples
As shown in fig. 1, the embodiment provides a cold heading process for forming an adjusting screw, which specifically comprises the following steps: 1. preparing raw materials: cutting the wire rod to a required length; 2. carrying out primary rod binding on the wire rod cut in the step one through cold heading to form a sixth part G; 3. carrying out secondary rod binding on the part processed in the second step through cold heading to form a fifth part F; 4. carrying out third binding and first rough upsetting on the part processed in the third step through cold upsetting to form a first part A and a first rough part; 5. upsetting the part processed in the fourth step for the second time through cold upsetting, and upsetting the primary thick part to form a secondary thick part; 6. chamfering and three times of upsetting are carried out on the part processed in the fifth step through cold upsetting, the secondary thick part is upsetted to form a three times thick part, and the tail end of the sixth part G forms a chamfer; 7. upsetting the washer and the hexagonal bundle of the part processed in the step six through cold heading, forming a second part B, a third part C, a fourth part D and a washer part E on the three-time thick part, and forming a hexagonal part H at the tail end of a sixth part G, thus completing the cold heading forming of the adjusting screw. The parts processed in the second step to the step sequentially correspond to the part (1), the part (2), the part (3), the part (4), the part (5) and the part (6) shown in fig. 1.
As shown in fig. 2, the present embodiment further provides a cold heading module for forming an adjusting screw, which is a six-die six-punch cold heading die, including a first die, a second die, a third die, a fourth die, a fifth die, and a sixth die; the first die is used for carrying out primary beam rod on the part to form a sixth part G; the second die is used for carrying out secondary beam rod on the part to form a fifth part F; the third die is used for carrying out third binding rod and first rough upsetting on the part to form a first part A and a first rough part; the fourth die is used for carrying out secondary upsetting on the part, and upsetting the primary thick part to form a secondary thick part; the fifth die is used for chamfering and three times of upsetting the part, upsetting the secondary thick part to form a three times thick part, and chamfering the tail end of the sixth part G; the sixth die is used for upsetting the washer and the hexagonal bundle of the part, forming a second part B, a third part C, a fourth part D and a washer part E on the tertiary thick part, and forming a hexagonal part H at the tail end of a sixth part G; the first die, the second die, the third die, the fourth die, the fifth die and the sixth die all comprise a stamping die and a main die; the stamping die comprises a stamping die sleeve 3, a stamping die cushion block positioned at the rear side of the stamping die sleeve 3 and a stamping rod 2 fixed at the front end of the stamping die sleeve 3; the main die comprises a main die shell 4, a main die upper section 5 positioned at the front inner side of the main die shell 4, a main die lower section 6 positioned at the rear inner side of the main die shell 4, a main die rear lock 7 and a main die cushion block 8 positioned at the rear side of the main die lower section 6, a main die thimble 9 penetrating the main die and a main die thimble sleeve 10 fixed at the rear side of the main die thimble 9; a third beam rod cavity 11 and a first left half upsetting cavity 12 are arranged in the stamping die of the third die, a first right half upsetting cavity 13 is also arranged in the main die of the third die, and the two first half upsetting cavities form a first upsetting cavity when the die is closed; a second left half upsetting cavity 14 is arranged in the stamping die of the fourth die, a second right half upsetting cavity 15 is also arranged in the main die of the fourth die, and the two second half upsetting cavities form a second upsetting cavity when the dies are closed; a third upsetting cavity 16 is arranged in the stamping die of the fifth die, and a chamfering cavity 17 is arranged at the tail end of the part in the main die; a fourth upsetting cavity 18 is formed in the stamping die of the sixth die, a washer cavity is formed between the stamping die and the main die when the stamping die is closed, and a hexagonal cavity 19 is formed in the main die of the sixth die and positioned at the tail end of the part; the main die of the first die further comprises a first beam rod cavity for carrying out first beam rod on the part to form a sixth part G; the main die of the second die further comprises a second beam rod cavity for carrying out second beam rod on the part to form a fifth part F; the left side of the first left half upsetting cavity 12 and the right side of the first right half upsetting cavity 13 of the third die are respectively provided with transition inclined planes; the taper angle formed by the transition inclined plane at the left side of the first left half upsetting cavity 12 of the third die is 30 degrees, and the taper angle formed by the transition inclined plane at the right side of the first right half upsetting cavity 13 is 80 degrees; the left side of the second left half upsetting cavity 14 and the right side of the second right half upsetting cavity 15 of the fourth die are respectively provided with transition inclined planes; the taper angle formed by the transition inclined plane at the left side of the second left half upsetting cavity 14 of the fourth die is 50 degrees, and the taper angle formed by the transition inclined plane at the right side of the second right half upsetting cavity 15 is 80 degrees; the left side of the third upsetting cavity 16 of the fifth die is a right-angle plane without a transitional inclined plane; the fourth upsetting cavity 18 of the sixth die corresponds to the second part B, the third part C, and the fourth part D of the part.
According to the cold heading process and the cold heading module for forming the adjusting screw, through the design of angles and sizes of the cavities and the design of sequences of processing steps, all structures and sizes of the adjusting screw can be formed through one set of cold heading die.
The cold heading process and the cold heading module for forming the adjusting screw utilize the cold heading technology to finish all the sizes of the adjusting screw, integrate part of the process on one die for cold heading forming, improve the machining efficiency, ensure that the internal structure of the adjusting screw is more compact and presents a complete streamline trend to improve the mechanical property, save materials, ensure the streamline is complete, improve the efficiency, replace the traditional turning and punching and other machining operations, ensure the dimensional accuracy, effectively reduce the production cost and meet the demands of customers.
The above embodiments should not limit the present invention in any way, and all technical solutions obtained by equivalent substitution or equivalent conversion fall within the protection scope of the present invention.
Claims (5)
1. A cold heading module that is used for cold heading technology of shaping adjusting screw, its characterized in that: the cold heading module is a six-die six-punch cold heading die and comprises a first die, a second die, a third die, a fourth die, a fifth die and a sixth die; the first die is used for carrying out primary beam rod on the part to form a sixth part; the second die is used for carrying out secondary beam rod on the part to form a fifth part; the third die is used for carrying out third binding rod and primary rough upsetting on the part to form a first part and a primary rough part; the fourth die is used for carrying out secondary upsetting on the part, and upsetting the primary thick part to form a secondary thick part; the fifth die is used for chamfering and three-time upsetting of the part, the second coarse part is upset to form a third coarse part, and the tail end of the sixth part is chamfered; the sixth die is used for upsetting the washer and the beam hexagon of the part, forming a second part, a third part, a fourth part and a washer part on the tertiary thick part, and forming a hexagon part at the tail end of the sixth part; the first die, the second die, the third die, the fourth die, the fifth die and the sixth die all comprise a stamping die and a main die; the stamping die comprises a stamping die sleeve, a stamping die cushion block positioned at the rear side of the stamping die sleeve and a stamping rod fixed at the front end of the stamping die sleeve; the main die comprises a main die shell, a main die upper section positioned at the front of the inner side of the main die shell, a main die lower section positioned at the rear of the inner side of the main die shell, a main die rear lock and a main die cushion block positioned at the rear side of the main die lower section, a main die thimble penetrating in the main die and a main die thimble sleeve fixed at the rear side of the main die thimble; a third beam rod cavity and a first left half upsetting cavity are arranged in the stamping die of the third die, a first right half upsetting cavity is also arranged in the main die of the third die, and the two first half upsetting cavities form a first upsetting cavity when the two first half upsetting cavities are matched;
a second left half upsetting cavity is arranged in the stamping die of the fourth die, a second right half upsetting cavity is also arranged in the main die of the fourth die, and the two second half upsetting cavities form a second upsetting cavity when the dies are closed; a third upsetting cavity is formed in the stamping die of the fifth die, and a chamfering cavity is formed in the tail end of the part in the main die; a fourth upsetting cavity is formed in the stamping die of the sixth die, a washer cavity is formed between the stamping die and the main die when the stamping die is closed, and a hexagonal beam cavity is formed in the main die of the sixth die and positioned at the tail end of the part; the left side of the first left half upsetting cavity and the right side of the first right half upsetting cavity of the third die are respectively provided with a transition inclined plane; the taper angle formed by the transition inclined plane at the left side of the first left half upsetting cavity of the third die is 30 degrees, and the taper angle formed by the transition inclined plane at the right side of the first right half upsetting cavity is 80 degrees; the left side of the second left half upsetting cavity and the right side of the second right half upsetting cavity of the fourth die are respectively provided with a transition inclined plane; the taper angle formed by the transition inclined plane at the left side of the second left half upsetting cavity of the fourth die is 50 degrees, and the taper angle formed by the transition inclined plane at the right side of the second right half upsetting cavity is 80 degrees.
2. A cold heading die set for use in a cold heading process for forming set screws as defined in claim 1, wherein: the main die of the first die further comprises a first beam rod cavity for carrying out first beam rod on the part to form a sixth part.
3. A cold heading die set for use in a cold heading process for forming set screws as defined in claim 1, wherein: the main die of the second die further comprises a second beam rod cavity for carrying out second beam rod on the part to form a fifth part.
4. A cold heading die set for use in a cold heading process for forming set screws as defined in claim 1, wherein: the left side of the third upsetting cavity of the fifth die is a right-angle plane, and no transition inclined plane exists.
5. A cold heading die set for use in a cold heading process for forming set screws as defined in claim 1, wherein: the fourth upsetting cavity of the sixth die corresponds to the second portion, the third portion, and the fourth portion of the part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810127096.6A CN108326226B (en) | 2018-02-08 | 2018-02-08 | Cold heading process and cold heading module for forming adjusting screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810127096.6A CN108326226B (en) | 2018-02-08 | 2018-02-08 | Cold heading process and cold heading module for forming adjusting screw |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108326226A CN108326226A (en) | 2018-07-27 |
| CN108326226B true CN108326226B (en) | 2024-03-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810127096.6A Active CN108326226B (en) | 2018-02-08 | 2018-02-08 | Cold heading process and cold heading module for forming adjusting screw |
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| CN (1) | CN108326226B (en) |
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| CN109013996B (en) * | 2018-09-06 | 2023-08-01 | 宁波思明汽车附件有限公司 | Cold heading molding inflating valve and molding process thereof |
| CN109301668A (en) * | 2018-10-30 | 2019-02-01 | 上海索力迪紧固件系统有限公司 | The cold-heading processing technology of igniter for automobile HV Terminal |
| CN114074168A (en) * | 2020-08-19 | 2022-02-22 | 宾科汽车紧固件（昆山）有限公司 | Bolt forming method and cold heading device |
| CN113118360B (en) * | 2021-04-08 | 2023-03-28 | 浙江华远汽车科技股份有限公司 | Two-section beam cold heading device |
| CN113634707B (en) * | 2021-06-29 | 2023-04-14 | 中国航空工业标准件制造有限责任公司 | Preparation method for 302 stainless steel self-locking nut hot heading forming |
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| AT258095B (en) * | 1964-12-21 | 1967-11-10 | Csavararugyar Fa | Tool for making screws with shaped heads |
| CN103909202A (en) * | 2012-12-29 | 2014-07-09 | 宾科汽车紧固件（昆山）有限公司 | Screw cold heading device and cold heading technology thereof |
| CN204094041U (en) * | 2014-08-15 | 2015-01-14 | 宾科汽车紧固件（昆山）有限公司 | Adjusting screw(rod) cold-heading device |
| CN104399845A (en) * | 2014-11-03 | 2015-03-11 | 苏州工业园区新凯精密五金有限公司 | Pin shaft cold heading forming process and cutting mold structure of pin shaft cold heading forming process |
| CN104588987A (en) * | 2014-12-01 | 2015-05-06 | 宁波安拓实业有限公司 | High-low screw work piece manufacturing technique |
| CN104646581A (en) * | 2015-03-10 | 2015-05-27 | 富奥汽车零部件股份有限公司 | Manufacturing method and mold structure of oversized-head pole bolt |
| CN207887817U (en) * | 2018-02-08 | 2018-09-21 | 苏州工业园区新凯精密五金有限公司 | A kind of cold-heading module for being molded adjusting screw |
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2018
- 2018-02-08 CN CN201810127096.6A patent/CN108326226B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT258095B (en) * | 1964-12-21 | 1967-11-10 | Csavararugyar Fa | Tool for making screws with shaped heads |
| CN103909202A (en) * | 2012-12-29 | 2014-07-09 | 宾科汽车紧固件（昆山）有限公司 | Screw cold heading device and cold heading technology thereof |
| CN204094041U (en) * | 2014-08-15 | 2015-01-14 | 宾科汽车紧固件（昆山）有限公司 | Adjusting screw(rod) cold-heading device |
| CN104399845A (en) * | 2014-11-03 | 2015-03-11 | 苏州工业园区新凯精密五金有限公司 | Pin shaft cold heading forming process and cutting mold structure of pin shaft cold heading forming process |
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| CN108326226A (en) | 2018-07-27 |
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| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Country or region after: China Address after: 215000 No. 36, Jiasheng Road, Shengpu Town, Suzhou Industrial Park, Suzhou Area, China (Jiangsu) Pilot Free Trade Zone, Suzhou, Jiangsu Province Applicant after: Suzhou Xinkai fastening system Co.,Ltd. Address before: No.36, Jiasheng Road, Shengpu Town, Suzhou Industrial Park, Suzhou, Jiangsu Province, 215000 Applicant before: SUZHOU INDUSTRIAL PARK XINKAI PRECISION FASTENER Co.,Ltd. Country or region before: China |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |