CN110252921B - Automatic warm mound machine of bolt - Google Patents
Automatic warm mound machine of bolt Download PDFInfo
- Publication number
- CN110252921B CN110252921B CN201910468616.4A CN201910468616A CN110252921B CN 110252921 B CN110252921 B CN 110252921B CN 201910468616 A CN201910468616 A CN 201910468616A CN 110252921 B CN110252921 B CN 110252921B
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- China
- Prior art keywords
- bolt
- upsetting
- pushing block
- heating
- blanks
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- 230000007246 mechanism Effects 0.000 claims abstract description 109
- 238000010438 heat treatment Methods 0.000 claims abstract description 62
- 230000005540 biological transmission Effects 0.000 claims abstract description 21
- 230000009471 action Effects 0.000 claims abstract description 5
- 210000000078 claw Anatomy 0.000 claims description 48
- 238000003825 pressing Methods 0.000 claims description 26
- 230000006698 induction Effects 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 208000012260 Accidental injury Diseases 0.000 abstract description 2
- 208000014674 injury Diseases 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 206010053615 Thermal burn Diseases 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
Classifications
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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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J9/00—Forging presses
- B21J9/02—Special design or construction
- B21J9/06—Swaging presses; Upsetting presses
- B21J9/08—Swaging presses; Upsetting presses equipped with devices for heating the work-piece
-
- 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
- B21K1/44—Making machine elements bolts, studs, or the like
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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
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Press Drives And Press Lines (AREA)
- Forging (AREA)
Abstract
The application relates to a bolt automatic warm heading machine which is used for heading bolt blanks and comprises a machine table, a feeding mechanism, a heating mechanism, a pushing block, a clamping mechanism, a heading mechanism, a blanking channel and a transmission mechanism, wherein the feeding mechanism, the heating mechanism, the pushing block, the clamping mechanism, the heading mechanism, the blanking channel and the transmission mechanism are arranged on the machine table; bolt blanks on the feeding channel sequentially slide down along the feeding channel under the action of self weight of the bolt blanks and enter the heating pipe, the heating pipe is stacked and supported on the pushing block, the heating pipe sequentially heats the upsetting portions of the bolt blanks, the stacked bolt blanks move along with the pushing block and sequentially slide down into the trough, the clamping mechanism clamps the bolt blanks and sends the bolt blanks to the upsetting mechanism, the upsetting mechanism upsetting the bolt blanks, and the upsetting-completed bolt blanks fall into the blanking channel. The automatic bolt-blank automatic device reduces the manual work, improves the production efficiency, and avoids personnel from directly contacting high-temperature bolt blanks, thereby avoiding accidental injury caused by high-temperature scalding.
Description
Technical Field
The application relates to the technical field of bolt processing, in particular to an automatic bolt warm heading machine.
Background
In the past in bolt processing process, generally by the manual work with the bolt blank that heats to the press, carry out stamping forming by the press again, production efficiency is low, and need consume a plurality of manual works and operate respectively, and need the bolt blank of punching press be in the high temperature state, by the manual work transportation and carry out the punching press, easily cause the scald at this in-process.
Publication No.: CN206842568U discloses a stepped feeding mechanism for an automatic bolt feeding machine.
Disclosure of Invention
In order to solve the problems, the application provides a bolt automatic warm heading machine.
A bolt automatic warm heading machine is used for heading bolt blanks and comprises a machine table, a feeding mechanism, a heating mechanism, a pushing block, a clamping mechanism, a heading mechanism, a blanking channel and a transmission mechanism, wherein the feeding mechanism, the heating mechanism, the pushing block, the clamping mechanism, the heading mechanism, the blanking channel and the transmission mechanism are arranged on the machine table; the transmission mechanism is respectively in driving connection with the pushing block, the clamping mechanism and the upsetting mechanism, and the pushing block, the clamping mechanism and the upsetting mechanism are linked; the feeding mechanism comprises a feeding channel which is obliquely arranged, the heating mechanism comprises a heating pipe which is obliquely arranged, the feeding channel is communicated with the heating pipe, the pushing block is arranged at the lower end of the heating pipe in a covering mode and used for supporting bolt blanks in the heating pipe, a trough for accommodating the bolt blanks is arranged on the pushing block, a clamping opening for clamping by the clamping mechanism is formed in the bottom of the trough, and the trough is communicated with the heating pipe along with the movement of the pushing block; the blanking channel penetrates through the machine table, and the top opening is opposite to the upsetting mechanism.
The bolt feeding equipment sequentially arranges bolts into a feeding channel, sequentially slides into a heating pipe along the feeding channel under the action of self weight of the bolt feeding equipment, is stacked and supported on a pushing block, the heating pipe sequentially heats the upsetting part of the bolt blank, the stacked bolt blank moves along with the pushing block and sequentially slides into a trough, a clamping mechanism clamps the bolt blank and sends the bolt blank to a upsetting mechanism, the upsetting mechanism upsets the bolt blank, and finished products after upsetting fall into a blanking channel; thereby realizing automatic warm pier of the bolt. In the operation process, a person skilled in the art can adjust the linkage modes of the pushing block, the clamping mechanism and the upsetting mechanism according to actual requirements so as to adapt to the automatic operation of the application.
The technical scheme is further improved and refined, the feeding mechanism further comprises bolt feeding equipment, and the bolt feeding equipment is connected with the feeding channel.
The technical scheme is further improved and refined, the heating mechanism further comprises all-solid-state induction heating equipment, the heating pipe comprises two sections of pipelines which are sequentially arranged, and two heating coils of the all-solid-state induction heating equipment are respectively arranged between two adjacent sections of pipelines and are connected to form a complete channel; the bolt blanks are stacked in the heating pipes, and the two heating coils are respectively and correspondingly surrounded on the outer sides of the upsetting parts of the two lowest bolt blanks; the all-solid-state induction heating device is manufactured by Yongjia, and the model is WZP.
The technical scheme is further improved and refined, the clamping mechanism comprises a bottom plate, a fixed claw, an elastic claw and a side plate, the fixed claw is fixed on the bottom plate, the elastic claw is elastically arranged on the fixed claw, is opposite to the fixed claw, and forms a jaw for clamping a bolt blank together, and the jaw extends out of the bottom plate; the side plate is fixed on the bottom plate and positioned at the opposite side of the fixed claw, the fixed claw is connected with the side plate through a guide pillar, the guide pillar penetrates through the elastic claw and leaves a gap with the elastic claw, a fixed block is arranged on the guide pillar, the fixed block is positioned between the elastic claw and the side plate, a spring is sleeved on the guide pillar, and two ends of the spring are respectively propped against the elastic claw and the fixed block; the transmission mechanism drives the connecting bottom plate, and the driving bottom plate drives the claw to rotate.
The bolt blank in the trough of the pushing block moves along with the pushing block and is opposite to the jaw, the bottom plate drives the claw to rotate, the jaw is contacted with the bolt blank in the trough of the pushing block, under the action of the rotating force of the jaw, the elastic claw is opened, the bolt blank enters the jaw, then under the action of the spring, the elastic claw is closed, the bottom plate drives the claw to reset, and the pushing block resets, so that the clamping of the bolt blank is completed.
The technical scheme is further improved and refined, and the upsetting mechanism comprises an upsetting head and a supporting seat; the pier pressing head is slidably mounted on the machine table, the supporting seat is fixedly mounted on the machine table, and the pier pressing head is opposite to the supporting seat; the transmission mechanism drives the connecting pier pressing head to drive the pier pressing head to move relative to the supporting seat.
The bottom plate drives the claw to rotate to a position between the pier pressing head and the supporting seat, the bolt blank clamped in the jaw is propped against the supporting seat, the pier pressing part of the bolt blank is opposite to the pier pressing head, the pier pressing head moves relative to the supporting seat to extrude the bolt blank, meanwhile, the bottom plate drives the claw to reset, the extrusion force of the pier pressing head and the supporting seat overcomes the clamping force of the elastic claw, and the spring contracts to loosen the bolt blank; after the pier pressing is finished, the pier pressing head is reset, the bolt blank loses support, and the bolt blank directly falls into the blanking channel.
The technical scheme is further improved and refined, and the transmission mechanism comprises two eccentric wheels, a upsetting connecting rod, a main rotating shaft, two cams and two connecting rods; the main rotating shaft is rotatably mounted on the machine table and driven to rotate by the driving device, the gear boxes are arranged at two ends of the main rotating shaft, each gear box comprises two output ends, one output end is connected with an eccentric wheel, the other output end is connected with a cam, the two eccentric wheels are opposite and are connected with the pier pressing head through pier pressing connecting rods in a mutual corresponding and matched mode, the two cams are connected with the two connecting rods in a one-to-one mode, the two connecting rods are movably mounted on the machine table respectively and sleeved with a reset spring, one connecting rod is in driving connection with an auxiliary rotating shaft, the auxiliary rotating shaft is rotatably mounted on the machine table, the driving connection with a bottom plate, the other connecting rod is in driving connection with a right-angle connecting rod, the right-angle connecting rod is horizontally rotatably mounted on the machine table, and the driving connection with a pushing block.
The technical scheme is further improved and refined, and the driving device is formed by connecting a driving motor with a belt wheel and a belt.
The application has the advantages of reasonable design and simple structure, integrates heating and upsetting, simultaneously realizes the heating and upsetting of bolt blanks, designs a feeding channel and a heating pipe from top to bottom and links a pushing block, a clamping mechanism and a upsetting mechanism, realizes automation, reduces the need of manpower, improves the production efficiency, and avoids personnel from directly contacting the high-temperature bolt blanks, thereby avoiding accidental injury caused by high-temperature scalding.
Drawings
Fig. 1 is a schematic diagram of a structure of an automatic bolt warm pier machine.
Fig. 2 is a partial top view of the automatic screw warm pier machine.
Fig. 3 is a schematic view of the closing of the jaws of the clamping mechanism.
Fig. 4 is a schematic view of the opening of the jaws of the clamping mechanism.
Fig. 5 is a schematic diagram of the structure of the pushing block.
In the drawing, a machine table 1, a feeding mechanism 2, a heating mechanism 3, a pushing block 4, a clamping mechanism 5, a upsetting mechanism 6, a blanking channel 7, a transmission mechanism 8, a feeding channel 2-1, a heating pipe 3-1, a trough 4-1, a clamping opening 4-2, a feeding device 2-2, an all-solid-state induction heating device 3-2, a bottom plate 5-1, a fixed claw 5-2, an elastic claw 5-3, a side plate 5-4, a guide post 5-5, a fixed block 5-6, a spring 5-7, a upsetting head 6-1, a supporting seat 6-2, an eccentric wheel 8-1, a upsetting connecting rod 8-2, a main rotating shaft 8-3, a cam 8-4, a connecting rod 8-5, a gear box 8-6, a reset spring 8-7, a secondary rotating shaft 8-8 and a right-angle connecting rod 8-9.
Detailed Description
As shown in fig. 1-5, an automatic bolt warm heading machine is used for heading bolt blanks and comprises a machine table 1, a feeding mechanism 2, a heating mechanism 3, a pushing block 4, a clamping mechanism 5, a heading mechanism 6, a blanking channel 7 and a transmission mechanism 8, wherein the feeding mechanism 2, the heating mechanism 3, the pushing block 4, the clamping mechanism 5, the heading mechanism 6 and the transmission mechanism 8 are arranged on the machine table 1; the transmission mechanism 8 is respectively in driving connection with the pushing block 4, the clamping mechanism 5 and the upsetting mechanism 6, and the pushing block 4, the clamping mechanism 5 and the upsetting mechanism 6 are linked; the feeding mechanism 2 comprises a feeding channel 2-1 which is obliquely arranged, the heating mechanism 3 comprises a heating pipe 3-1 which is obliquely arranged, the feeding channel 2-1 is communicated with the heating pipe 3-1, the pushing block 4 is arranged at the lower end of the heating pipe 3-1 in a covering mode, bolt blanks in the heating pipe 3-1 are supported, a trough 4-1 for containing the bolt blanks is arranged on the bolt blanks, a clamping opening 4-2 for clamping by a clamping mechanism is formed in the bottom of the trough 4-1, and the trough 4-1 is communicated with the heating pipe 3-1 along with the movement of the pushing block 4; the blanking channel 7 penetrates through the machine table, and the top opening is opposite to the upsetting mechanism 6; the feeding mechanism 2 further comprises bolt feeding equipment 2-2, and the bolt feeding equipment 2-2 is connected with the feeding channel 2-1; the heating mechanism 3 further comprises an all-solid-state induction heating device 3-2, the heating tube 3-1 comprises two sections of pipelines which are sequentially arranged, and two heating coils of the all-solid-state induction heating device 3-2 are respectively arranged between two adjacent sections of pipelines and are connected to form a complete channel; the bolt blanks are stacked in the heating pipes 3-1, and the two heating coils are respectively and correspondingly surrounded on the outer sides of the upsetting parts of the two lowest bolt blanks one by one; the clamping mechanism 5 comprises a bottom plate 5-1, a fixed claw 5-2, an elastic claw 5-3 and a side plate 5-4, wherein the fixed claw 5-2 is fixed on the bottom plate 5-1, the elastic claw 5-3 is elastically arranged on the fixed claw 5-2, is opposite to the fixed claw 5-2, and jointly forms a jaw for clamping a bolt blank, and the jaw extends out of the bottom plate; the side plate 5-4 is fixed on the bottom plate 5-1 and is positioned at the opposite side of the fixed claw 5-2, the fixed claw 5-2 is connected with the side plate 5-4 through the guide post 5-5, the guide post 5-5 passes through the elastic claw 5-3 and leaves a gap with the elastic claw, the guide post 5-5 is provided with a fixed block 5-6, the fixed block 5-6 is positioned between the elastic claw 5-3 and the side plate 5-4, the guide post 5-5 is sleeved with a spring 5-7, and two ends of the spring 5-7 are respectively propped against the elastic claw 5-3 and the fixed block 5-6; the transmission mechanism 8 drives the connecting bottom plate 5-1, and drives the bottom plate 5-1 to drive the claw to rotate; the upsetting mechanism 6 comprises a upsetting head 6-1 and a supporting seat 6-2; the pier pressing head 6-1 is slidably mounted on the machine table 1, the supporting seat 6-2 is fixedly mounted on the machine table 1, and the pier pressing head 6-1 is opposite to the supporting seat 6-2; the transmission mechanism 8 drives the connecting pier pressing head 6-1 and drives the pier pressing head 6-1 to move relative to the supporting seat 6-2; the transmission mechanism 8 comprises two eccentric wheels 8-1, a pier-pressing connecting rod 8-2, a main rotating shaft 8-3, two cams 8-4 and two connecting rods 8-5; the main rotating shaft 8-3 is rotatably mounted on the machine table 1 and driven to rotate by a driving device, gear boxes 8-6 are arranged at two ends of the main rotating shaft 8-3, each gear box 8-6 comprises two output ends, one output end is connected with an eccentric wheel 8-1, the other output end is connected with a cam 8-4, the two eccentric wheels 8-1 are opposite and are jointly connected with the upsetting head 6-1 through a upsetting connecting rod 8-2, the two cams 8-4 are in one-to-one corresponding fit connection with the two connecting rods 8-5, the two connecting rods 8-5 are respectively movably mounted on the machine table 1, reset springs 8-7 are respectively sleeved on the two connecting rods, one connecting rod 8-4 is in driving connection with an auxiliary rotating shaft 8-8, the auxiliary rotating shaft 8-8 is rotatably mounted on the machine table 1, the other connecting rod 8-4 is in driving connection with a right-angle connecting rod 8-9, the right-angle connecting rod 8-9 is horizontally rotatably mounted on the machine table 1, and the pushing block 4 is in driving connection; the driving device is formed by connecting a driving motor with a belt wheel and a belt.
Because of the limited text expression and the limitless specific structure, it is possible for those skilled in the art to make several improvements, modifications or changes without departing from the principles of the present application, and to combine the above technical features in a suitable manner; such modifications, variations and combinations, or the direct application of the inventive concepts and aspects to other applications without modification, are contemplated as falling within the scope of the present application.
Claims (3)
1. The automatic bolt warm heading machine is used for heading bolt blanks and is characterized by comprising a machine table, a feeding mechanism, a heating mechanism, a pushing block, a clamping mechanism, a heading mechanism, a blanking channel and a transmission mechanism, wherein the feeding mechanism, the heating mechanism, the pushing block, the clamping mechanism, the heading mechanism, the blanking channel and the transmission mechanism are arranged on the machine table; the transmission mechanism is respectively in driving connection with the pushing block, the clamping mechanism and the upsetting mechanism, and the pushing block, the clamping mechanism and the upsetting mechanism are linked; the feeding mechanism comprises a feeding channel which is obliquely arranged, the heating mechanism comprises a heating pipe which is obliquely arranged, the feeding channel is communicated with the heating pipe, the pushing block is arranged at the lower end of the heating pipe in a covering mode and used for supporting bolt blanks in the heating pipe, a trough for accommodating the bolt blanks is arranged on the pushing block, a clamping opening for clamping by the clamping mechanism is formed in the bottom of the trough, and the trough is communicated with the heating pipe along with the movement of the pushing block; the blanking channel penetrates through the machine table, and the top opening is opposite to the upsetting mechanism; bolt blanks on the feeding channel sequentially slide down along the feeding channel under the action of self weight of the bolt blanks and enter a heating pipe, the heating pipe is stacked and supported on a pushing block, the heating pipe sequentially heats the upsetting parts of the bolt blanks, the stacked bolt blanks move along with the pushing block and sequentially slide down into a trough, a clamping mechanism clamps the bolt blanks and sends the bolt blanks to a upsetting mechanism, the upsetting mechanism upsets the bolt blanks, and the upsetting-completed bolt blanks fall into a blanking channel;
the feeding mechanism further comprises bolt feeding equipment, and the bolt feeding equipment is connected with the feeding channel;
the clamping mechanism comprises a bottom plate, a fixed claw, an elastic claw and a side plate, wherein the fixed claw is fixed on the bottom plate, the elastic claw is elastically arranged on the fixed claw, is opposite to the fixed claw and jointly forms a jaw for clamping a bolt blank, and the jaw extends out of the bottom plate; the side plate is fixed on the bottom plate and positioned at the opposite side of the fixed claw, the fixed claw is connected with the side plate through a guide pillar, the guide pillar penetrates through the elastic claw and leaves a gap with the elastic claw, a fixed block is arranged on the guide pillar, the fixed block is positioned between the elastic claw and the side plate, a spring is sleeved on the guide pillar, and two ends of the spring are respectively propped against the elastic claw and the fixed block; the transmission mechanism drives the connecting bottom plate, and drives the bottom plate to drive the claw to rotate;
the upsetting mechanism comprises a upsetting head and a supporting seat; the pier pressing head is slidably mounted on the machine table, the supporting seat is fixedly mounted on the machine table, and the pier pressing head is opposite to the supporting seat; the transmission mechanism drives the connecting pier pressing head to drive the pier pressing head to move relative to the supporting seat;
the transmission mechanism comprises two eccentric wheels, a pier-pressing connecting rod, a main rotating shaft, two cams and two connecting rods; the main rotating shaft is rotatably mounted on the machine table and driven to rotate by the driving device, the gear boxes are arranged at two ends of the main rotating shaft, each gear box comprises two output ends, one output end is connected with an eccentric wheel, the other output end is connected with a cam, the two eccentric wheels are opposite and are connected with the pier pressing head through pier pressing connecting rods in a mutual corresponding and matched mode, the two cams are connected with the two connecting rods in a one-to-one mode, the two connecting rods are movably mounted on the machine table respectively and sleeved with a reset spring, one connecting rod is in driving connection with an auxiliary rotating shaft, the auxiliary rotating shaft is rotatably mounted on the machine table, the driving connection with a bottom plate, the other connecting rod is in driving connection with a right-angle connecting rod, the right-angle connecting rod is horizontally rotatably mounted on the machine table, and the driving connection with a pushing block.
2. The automatic bolt temperature pier machine according to claim 1, wherein the heating mechanism further comprises an all-solid-state induction heating device, the heating pipe comprises two sections of pipelines which are sequentially arranged, and two heating coils of the all-solid-state induction heating device are respectively arranged between two adjacent sections of pipelines and are connected to form a complete channel; the bolt blanks are stacked in the heating pipes, and the two heating coils are respectively and correspondingly surrounded on the outer sides of the pier pressing parts of the two lowest bolt blanks.
3. The automatic bolt warm pier machine according to claim 1, wherein the driving device is formed by connecting a driving motor with a belt wheel and a belt.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201910468616.4A CN110252921B (en) | 2019-05-31 | 2019-05-31 | Automatic warm mound machine of bolt |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201910468616.4A CN110252921B (en) | 2019-05-31 | 2019-05-31 | Automatic warm mound machine of bolt |
Publications (2)
Publication Number | Publication Date |
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CN110252921A CN110252921A (en) | 2019-09-20 |
CN110252921B true CN110252921B (en) | 2023-12-08 |
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CN201910468616.4A Active CN110252921B (en) | 2019-05-31 | 2019-05-31 | Automatic warm mound machine of bolt |
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CN (1) | CN110252921B (en) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB238685A (en) * | 1924-07-31 | 1925-08-27 | Charles Fassinger | Improved machine for heading bolts or like metal objects |
CN104624901A (en) * | 2015-01-27 | 2015-05-20 | 浙江龙力机械有限公司 | Roll forging machine |
CN105964871A (en) * | 2016-06-07 | 2016-09-28 | 四川省泰禾机械有限公司 | Device for upsetting long bolt hexagonal head through stamping device |
CN107052221A (en) * | 2017-04-19 | 2017-08-18 | 嘉兴学院 | A kind of hot upsetting device for automatically molding |
CN208696194U (en) * | 2018-07-17 | 2019-04-05 | 东莞辉科机器人自动化股份有限公司 | A kind of full-automatic nut forging machine |
-
2019
- 2019-05-31 CN CN201910468616.4A patent/CN110252921B/en active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB238685A (en) * | 1924-07-31 | 1925-08-27 | Charles Fassinger | Improved machine for heading bolts or like metal objects |
CN104624901A (en) * | 2015-01-27 | 2015-05-20 | 浙江龙力机械有限公司 | Roll forging machine |
CN105964871A (en) * | 2016-06-07 | 2016-09-28 | 四川省泰禾机械有限公司 | Device for upsetting long bolt hexagonal head through stamping device |
CN107052221A (en) * | 2017-04-19 | 2017-08-18 | 嘉兴学院 | A kind of hot upsetting device for automatically molding |
CN208696194U (en) * | 2018-07-17 | 2019-04-05 | 东莞辉科机器人自动化股份有限公司 | A kind of full-automatic nut forging machine |
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CN110252921A (en) | 2019-09-20 |
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