CN113714442A - Cold heading system and machining process for forming welded nut - Google Patents
Cold heading system and machining process for forming welded nut Download PDFInfo
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- CN113714442A CN113714442A CN202111022416.XA CN202111022416A CN113714442A CN 113714442 A CN113714442 A CN 113714442A CN 202111022416 A CN202111022416 A CN 202111022416A CN 113714442 A CN113714442 A CN 113714442A
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- plate
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- cold heading
- heading
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- 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
- B21J5/002—Hybrid process, e.g. forging following casting
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- 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
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- 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
- B21K1/64—Making machine elements nuts
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
Abstract
The invention discloses a cold heading system for forming a welded nut and a processing technology thereof, comprising a frame, wherein a lower die set is fixedly arranged on the surface of one side of the frame, the surfaces of the two ends of the frame are both hinged with swing shafts, the surfaces of the swing shafts are hinged with lifting telescopic rods, the rod head of the lifting telescopic rod is fixedly provided with a swinging plate, the surface of the swinging plate is provided with a strip through groove, a sliding plate is slidably arranged on the side surface of the strip through groove, an electromagnet is fixedly arranged on the surface of one side of the sliding plate, a right-angle side plate is fixedly arranged on the surface of the other side of the frame, cold-heading telescopic rods are fixedly arranged on the surfaces of the two ends of the right-angle side plate, the rod head of the cold heading telescopic rod is slidably provided with a cold heading plate, the surface of one side of the cold heading plate is fixedly provided with an upper die set, the convenience and the stability that use can be improved greatly like this, cold-heading fashioned accuracy and high efficiency are guaranteed.
Description
Technical Field
The invention relates to the field of nut processing, in particular to a cold heading system and a processing technology for forming a welded nut.
Background
In the processing process of welding the nut, cold heading equipment is mostly adopted, the cut wire rods are formed through multiple times of cold heading, nut blanks are processed, and finally thread finish machining is carried out.
However, in the existing welded nut cold heading equipment, a plurality of dies are installed in a split mode, and after one process is completed, the blanks in the middle are transferred to the next die in batches, so that the processing efficiency is greatly reduced, the blanks in different processes are prone to being mixed and disordered, the accurate cold heading efficiency and the safety are affected, meanwhile, the multiple cold heading processing of one nut is not beneficial to controlling the discharging angle and the feeding angle and depth, the cold heading quality is affected, and improvement is needed.
Disclosure of Invention
Aiming at the problems in the prior art, the invention aims to provide a cold heading system and a processing technology for forming a welded nut.
In order to solve the above problems, the present invention adopts the following technical solutions.
A cold heading system and a processing technology for forming a welded nut comprise a rack, wherein a lower die set is fixedly arranged on one side surface of the rack, swing shafts are hinged to the two end surfaces of the rack, a lifting telescopic rod is hinged to the surface of the swing shafts, a swing plate is fixedly arranged on a rod head of the lifting telescopic rod, one side surface of the swing plate is located on one end side surface of the lower die set, a long-strip through groove is formed in the surface of the swing plate, a sliding plate is slidably arranged on the side surface of the long-strip through groove, an electromagnet is fixedly arranged on one side surface of the sliding plate, one end surface of the electromagnet is aligned to one end surface of the lower die set, a right-angle side plate is fixedly arranged on the other side surface of the rack, cold heading telescopic rods are fixedly arranged on the two end surfaces of the right-angle side plate, a cold heading plate is slidably arranged on the rod head of the cold heading telescopic rod, and the side surface of the cold heading plate is located on one side position of the right-angle side plate, one side fixed surface of cold-heading plate installs mould group, the one end surface of going up mould group is to the one side position that is located lower mould group.
Furthermore, the side face of one end of the swinging plate is fixedly provided with an adjusting telescopic rod, one end rod head of the adjusting telescopic rod is fixedly connected to the surface of one end of the sliding plate, and the adjusting telescopic rod is connected with the sliding plate, so that the transverse sliding adjustment can be realized, and the discharging is convenient.
Furthermore, horizontal round rods are fixedly connected to two ends of the side face of the strip through groove and located on the side faces of two ends of the swing plate.
Furthermore, the two side surfaces of the sliding plate are provided with transverse through grooves, the side surfaces of the transverse through grooves are connected to one side surface of the transverse round rod in a sliding mode, the transverse round rod is connected through the transverse through grooves, the sliding plate can be guided and supported, dislocation is avoided, and adjustment and use are facilitated.
Further, another side fixed surface of frame is connected with a supporting bench, the one end surface of frame is equipped with the discharge gate, one side fixed surface of discharge gate installs the slope baffle, through discharge gate installation slope baffle, can lead the ejection of compact to finished product nut, does benefit to centralized processing.
Further, lifting telescopic rod's other end side fixed mounting has driven gear, driven gear is located the both ends position of frame, through installation driven gear, does benefit to drive angle regulation, conveniently dodges the operation.
Further, the opposite side fixed surface of frame is connected with the mounting panel, a side fixed surface of mounting panel installs swing motor, through mounting panel installation swing motor, can the edgewise drive adjust, avoids interfering, and is convenient high-efficient.
Furthermore, the shaft end of the swing motor is rotatably provided with a driving gear, one side surface of the driving gear is meshed with one side surface of the driven gear, the driving gear is meshed with the driven gear, the angle can be driven to be adjusted, and control and operation are facilitated.
Further, lower mould group and last mould group all have five, and correspond the equidistant arrangement in position from top to bottom, through arranging five groups of moulds, can carry out upsetting, fixed point cold-heading, thick mound shaping, fine upsetting shaping and punch a hole respectively, do benefit to the integrated shaping processing.
Further, the processing technology comprises the following steps:
s1, placing the cut wire rods into a first die of a lower die set, and feeding and positioning;
s2, controlling the expansion rod of the cold heading to extend out, pushing the cold heading plate and the upper die set to perform downward pressing cold heading, and completing upsetting operation;
s3, controlling the cold heading telescopic rod and the cold heading plate to reset upwards and separating from the lower die set;
s4, starting a swing motor to drive a driving gear to rotate, and meshing a driven gear to drive a lifting telescopic rod to turn over at an angle and turn over from a side position to a vertical position;
s5, the swinging plate and the sliding plate move right above the lower die set, the lifting telescopic rod is controlled to contract and reduce the height, the electromagnet adsorbs upset blanks, the blanks are reset and pulled upwards, and the blanks are separated from the lower die set for discharging;
s6, controlling the adjusting telescopic rod to contract and pull the sliding plate to move a station, driving the blank to enter the next die, then swinging the motor to rotate reversely, and enabling the swinging angle of the swinging plate to be avoided to the side surface to separate from the lower die set;
s7, replacing a new wire rod, and sequentially performing cold heading, discharging and feeding operations;
and S8, sequentially carrying out five times of cold upsetting on the blank, continuously completing the processes of upsetting, fixed-point cold upsetting, thick-pier forming, fine upsetting forming and punching, and finally discharging from a discharge port to finish machining.
Compared with the prior art, the invention has the advantages that:
(1) this scheme passes through frame installation bed die set, and right angle curb plate installation cold-heading board and last mould group can carry out the cold-heading shaping in proper order by the one-to-one, combines side articulated lifting telescopic link to connect the swinging plate, and then through sliding plate installation electro-magnet, convenient upset is dodged, avoids interfering, can carry out the continuity of operation by the ejection of compact in proper order simultaneously, and is high-efficient stable.
(2) The telescopic rod is adjusted to be connected with the sliding plate, so that the sliding plate can be adjusted in a transverse sliding mode, and discharging is facilitated.
(3) The sliding plate can be guided and supported by connecting the transverse through grooves with the transverse round rods, so that dislocation is avoided, and adjustment and use are facilitated.
(4) Through the inclined baffle of discharge gate installation, can lead the ejection of compact to finished product nut, do benefit to centralized processing.
(5) Through the installation driven gear, do benefit to drive angle regulation, conveniently dodge the operation.
(6) Through mounting panel installation swing motor, can the edgewise drive adjust, avoid interfering, convenient high-efficient.
(7) The driving gear is meshed with the driven gear, so that the angle can be driven to be adjusted, and the control operation is convenient.
(8) Through arranging five groups of dies, upsetting, fixed-point cold heading, thick heading forming, fine heading forming and punching can be respectively carried out, and integrated forming and processing are facilitated.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of a partial structure of a swing motor connection according to the present invention;
FIG. 3 is a partial schematic view of the slide plate mounting of the present invention;
fig. 4 is a schematic structural view of the connection of the upper mold set according to the present invention.
The reference numbers in the figures illustrate:
the device comprises a machine frame 1, a lower die set 11, a swing shaft 12, a lifting telescopic rod 13, a swing plate 14, a long through groove 15, a sliding plate 16, an electromagnet 17, a right-angle side plate 18, a cold heading telescopic rod 2, a cold heading plate 21, an upper die set 22, an adjusting telescopic rod 23, a transverse round rod 24, a transverse through groove 25, a supporting table 26, a discharge port 27, an inclined baffle 28, a driven gear 3, a mounting plate 31, a swing motor 32 and a driving gear 33.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.
Referring to fig. 1-4, a cold heading system and a processing technique for forming a welded nut, including a frame 1, referring to fig. 1 and 4, a lower die set 11 is fixedly installed on a surface of one side of the frame 1, a swing shaft 12 is hinged on both end surfaces of the frame 1, a lifting telescopic rod 13 is hinged on a surface of the swing shaft 12, a swing plate 14 is fixedly installed on a rod head of the lifting telescopic rod 13, and can swing to adjust an angle, thereby avoiding a cold heading position, avoiding interference, and facilitating control and use, a surface of one side of the swing plate 14 is located on a side surface of one end of the lower die set 11, a long strip through groove 15 is arranged on a surface of the swing plate 14, a sliding plate 16 is slidably installed on a side surface of the long strip through groove 15, an electromagnet 17 is fixedly installed on a surface of one side of the sliding plate 16, and can slide to adjust a position transversely, thereby taking out a previous blank and placing the blank into a next die, and facilitating continuous operation for cold heading forming, the accuracy and the efficiency are ensured, the control production is convenient, one end surface of the electromagnet 17 is opposite to one end surface of the lower die set 11, the other side surface of the frame 1 is fixedly provided with a right-angle side plate 18, the surfaces of the two ends of the right-angle side plate 18 are fixedly provided with the cold-heading telescopic rod 2, the cold heading forming can be carried out by lifting, the use is controlled, the cold heading plate 21 is arranged at the rod head of the cold heading telescopic rod 2 in a sliding way, the side surface of the cold heading plate 21 is positioned at one side position of the right-angle side plate 18, the upper die set 22 is fixedly arranged on the surface of one side of the cold heading plate 21, five lower die sets 11 and five upper die sets 22 are arranged at equal intervals at the corresponding upper and lower positions, and by arranging the five sets of dies, upsetting, fixed-point cold heading, upsetting forming, fine heading forming and punching can be respectively carried out, integral forming processing is facilitated, and one end surface of the upper die set 22 is opposite to one side position of the lower die set 11.
Referring to fig. 1 and 3, an adjusting telescopic rod 23 is fixedly mounted on one side surface of the oscillating plate 14, one end rod head of the adjusting telescopic rod 23 is fixedly connected to one end surface of the sliding plate 16, the adjusting telescopic rod 23 is connected to the sliding plate 16, the transverse sliding adjustment is possible, the discharging is convenient, transverse round rods 24 are fixedly connected to two side ends of the long through groove 15, the transverse round rods 24 are located on two side surfaces of the oscillating plate 14, transverse through grooves 25 are formed in two side surfaces of the sliding plate 16, the side surfaces of the transverse through grooves 25 are slidably connected to one side surface of the transverse round rods 24, the transverse round rods 23 are connected through the transverse through grooves 25, the sliding plate 16 can be guided and supported, the dislocation is avoided, and the adjusting use is convenient.
Referring to fig. 1 and 2, a support table 26 is fixedly connected to the other side surface of the frame 1, a discharge port 27 is formed in one end surface of the frame 1, an inclined baffle 28 is fixedly installed on one side surface of the discharge port 27, the inclined baffle 28 is installed through the discharge port 27 to guide and discharge finished nuts, so as to facilitate centralized processing, driven gears 3 are fixedly installed on the other end side surface of the lifting telescopic rod 13, the driven gears 3 are located at two end positions of the frame 1, driving and angle adjustment are facilitated by installing the driven gears 3, so as to facilitate avoiding operation, an installation plate 31 is fixedly connected to the other side surface of the frame 1, a swing motor 32 is fixedly installed on one side surface of the installation plate 31, the swing motor 32 is installed through the installation plate 31, so as to be capable of driving and adjusting from the side surface, so as to avoid interference, and the operation is convenient and efficient, a driving gear 33 is rotatably installed at the shaft end of the swing motor 32, and one side surface of the driving gear 33 is meshed with one side surface of the driven gear 3, the driving gear 33 is meshed with the driven gear 3, so that the angle can be driven to be adjusted, and the control operation is convenient.
The processing technology comprises the following steps:
s1, placing the cut wire rods into a first die of a lower die set, and feeding and positioning;
s2, controlling the expansion rod of the cold heading to extend out, pushing the cold heading plate and the upper die set to perform downward pressing cold heading, and completing upsetting operation;
s3, controlling the cold heading telescopic rod and the cold heading plate to reset upwards and separating from the lower die set;
s4, starting a swing motor to drive a driving gear to rotate, and meshing a driven gear to drive a lifting telescopic rod to turn over at an angle and turn over from a side position to a vertical position;
s5, the swinging plate and the sliding plate move right above the lower die set, the lifting telescopic rod is controlled to contract and reduce the height, the electromagnet adsorbs upset blanks, the blanks are reset and pulled upwards, and the blanks are separated from the lower die set for discharging;
s6, controlling the adjusting telescopic rod to contract and pull the sliding plate to move a station, driving the blank to enter the next die, then swinging the motor to rotate reversely, and enabling the swinging angle of the swinging plate to be avoided to the side surface to separate from the lower die set;
s7, replacing a new wire rod, and sequentially performing cold heading, discharging and feeding operations;
and S8, sequentially carrying out five times of cold upsetting on the blank, continuously completing the processes of upsetting, fixed-point cold upsetting, thick-pier forming, fine upsetting forming and punching, and finally discharging from a discharge port to finish machining.
The foregoing is only a preferred embodiment of the present invention; the scope of the invention is not limited thereto. Any person skilled in the art should be able to cover the technical scope of the present invention by equivalent or modified solutions and modifications within the technical scope of the present invention.
Claims (10)
1. The utility model provides a cold-heading system and processing technology of shaping welded nut, includes frame (1), its characterized in that: the hot forging forming die is characterized in that a lower die set (11) is fixedly mounted on the surface of one side of the rack (1), swing shafts (12) are hinged to the surfaces of the two ends of the rack (1), a lifting telescopic rod (13) is hinged to the surface of the swing shafts (12), a swing plate (14) is fixedly mounted on the rod head of the lifting telescopic rod (13), the surface of one side of the swing plate (14) is located on the side face of one end of the lower die set (11), a strip through groove (15) is arranged on the surface of the swing plate (14), a sliding plate (16) is slidably mounted on the side face of the strip through groove (15), an electromagnet (17) is fixedly mounted on the surface of one side of the sliding plate (16), the surface of one end of the electromagnet (17) is aligned to the surface of one end of the lower die set (11), a right-angle side plate (18) is fixedly mounted on the surface of the other side of the rack (1), and cold forging telescopic rods (2) are fixedly mounted on the surfaces of the two ends of the right-angle side plate (18), the pole head slidable mounting of cold-heading telescopic link (2) has cold-heading board (21), the side of cold-heading board (21) is located one side position of right angle curb plate (18), one side fixed surface of cold-heading board (21) installs mould group (22), the one end surface of going up mould group (22) is to one side position that is located lower mould group (11).
2. The cold heading system for forming weld nuts as claimed in claim 1, wherein: an adjusting telescopic rod (23) is fixedly installed on one end side face of the swinging plate (14), and one end rod head of the adjusting telescopic rod (23) is fixedly connected to one end surface of the sliding plate (16).
3. The cold heading system for forming weld nuts as claimed in claim 1, wherein: the two ends of the side face of the strip through groove (15) are fixedly connected with transverse round rods (24), and the transverse round rods (24) are located on the side faces of the two ends of the swinging plate (14).
4. The cold heading system for forming weld nuts as claimed in claim 1, wherein: the two side surfaces of the sliding plate (16) are provided with transverse through grooves (25), and the side surfaces of the transverse through grooves (25) are connected with one side surface of the transverse round rod (24) in a sliding mode.
5. The cold heading system for forming weld nuts as claimed in claim 1, wherein: the utility model discloses a frame, including frame (1), one end surface of frame (1) is equipped with discharge gate (27), the other side fixed surface of frame (1) is connected with brace table (26), one side fixed surface of discharge gate (27) installs slope baffle (28).
6. The cold heading system for forming weld nuts as claimed in claim 1, wherein: the other end side face of the lifting telescopic rod (13) is fixedly provided with a driven gear (3), and the driven gear (3) is located at two ends of the rack (1).
7. The cold heading system for forming weld nuts, as claimed in claim 6, wherein: the surface of the other side of the rack (1) is fixedly connected with a mounting plate (31), and a surface of one side of the mounting plate (31) is fixedly provided with a swing motor (32).
8. The cold-heading system for forming weld nuts, as claimed in claim 7, wherein: and a driving gear (33) is rotatably arranged at the shaft end of the swing motor (32), and one side surface of the driving gear (33) is meshed with one side surface of the driven gear (3).
9. The cold heading system for forming weld nuts as claimed in claim 1, wherein: the lower die set (11) and the upper die set (22) are five in number and are arranged at equal intervals in corresponding positions up and down.
10. The processing technology of the cold heading system for forming the weld nut as claimed in claim 1, wherein the processing technology comprises the following steps: the processing technology comprises the following steps:
s1, placing the cut wire rods into a first die of a lower die set, and feeding and positioning;
s2, controlling the expansion rod of the cold heading to extend out, pushing the cold heading plate and the upper die set to perform downward pressing cold heading, and completing upsetting operation;
s3, controlling the cold heading telescopic rod and the cold heading plate to reset upwards and separating from the lower die set;
s4, starting a swing motor to drive a driving gear to rotate, and meshing a driven gear to drive a lifting telescopic rod to turn over at an angle and turn over from a side position to a vertical position;
s5, the swinging plate and the sliding plate move right above the lower die set, the lifting telescopic rod is controlled to contract and reduce the height, the electromagnet adsorbs upset blanks, the blanks are reset and pulled upwards, and the blanks are separated from the lower die set for discharging;
s6, controlling the adjusting telescopic rod to contract and pull the sliding plate to move a station, driving the blank to enter the next die, then swinging the motor to rotate reversely, and enabling the swinging angle of the swinging plate to be avoided to the side surface to separate from the lower die set;
s7, replacing a new wire rod, and sequentially performing cold heading, discharging and feeding operations;
and S8, sequentially carrying out five times of cold upsetting on the blank, continuously completing the processes of upsetting, fixed-point cold upsetting, thick-pier forming, fine upsetting forming and punching, and finally discharging from a discharge port to finish machining.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111022416.XA CN113714442B (en) | 2021-09-01 | 2021-09-01 | Cold heading system for forming welded nuts and machining process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111022416.XA CN113714442B (en) | 2021-09-01 | 2021-09-01 | Cold heading system for forming welded nuts and machining process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113714442A true CN113714442A (en) | 2021-11-30 |
| CN113714442B CN113714442B (en) | 2023-08-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111022416.XA Active CN113714442B (en) | 2021-09-01 | 2021-09-01 | Cold heading system for forming welded nuts and machining process |
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| CN (1) | CN113714442B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102765206A (en) * | 2012-08-01 | 2012-11-07 | 天津贝迪安全设备有限公司 | System for making shoes automatically from polyurethane |
| CN202969249U (en) * | 2012-08-22 | 2013-06-05 | 成都亚佳工程新技术开发有限公司 | Piston type tension and compression limiter |
| CN103253510A (en) * | 2013-06-05 | 2013-08-21 | 赵伟明 | Charge method and automatic charge mechanism of double-end halogen lamp aging machine |
| CN204263415U (en) * | 2014-12-03 | 2015-04-15 | 嘉兴鸿利机械有限公司 | Die turnover apparatus |
| CN106363698A (en) * | 2016-11-01 | 2017-02-01 | 广东长盈精密技术有限公司 | Integrated feeding and cutting mechanism |
| CN210359080U (en) * | 2019-08-27 | 2020-04-21 | 苏州工业园区新凯精密五金有限公司 | Cold-heading module of forming welded nut |
| CN212704196U (en) * | 2020-07-24 | 2021-03-16 | 丽水市吴越机械制造有限公司 | Cold header for processing integrated bearing |
-
2021
- 2021-09-01 CN CN202111022416.XA patent/CN113714442B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102765206A (en) * | 2012-08-01 | 2012-11-07 | 天津贝迪安全设备有限公司 | System for making shoes automatically from polyurethane |
| CN202969249U (en) * | 2012-08-22 | 2013-06-05 | 成都亚佳工程新技术开发有限公司 | Piston type tension and compression limiter |
| CN103253510A (en) * | 2013-06-05 | 2013-08-21 | 赵伟明 | Charge method and automatic charge mechanism of double-end halogen lamp aging machine |
| CN204263415U (en) * | 2014-12-03 | 2015-04-15 | 嘉兴鸿利机械有限公司 | Die turnover apparatus |
| CN106363698A (en) * | 2016-11-01 | 2017-02-01 | 广东长盈精密技术有限公司 | Integrated feeding and cutting mechanism |
| CN210359080U (en) * | 2019-08-27 | 2020-04-21 | 苏州工业园区新凯精密五金有限公司 | Cold-heading module of forming welded nut |
| CN212704196U (en) * | 2020-07-24 | 2021-03-16 | 丽水市吴越机械制造有限公司 | Cold header for processing integrated bearing |
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| Publication number | Publication date |
|---|---|
| CN113714442B (en) | 2023-08-29 |
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