CN114102053A - Method and system for machining rolled rear end of plate spring - Google Patents

Method and system for machining rolled rear end of plate spring Download PDF

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Publication number
CN114102053A
CN114102053A CN202111229545.6A CN202111229545A CN114102053A CN 114102053 A CN114102053 A CN 114102053A CN 202111229545 A CN202111229545 A CN 202111229545A CN 114102053 A CN114102053 A CN 114102053A
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China
Prior art keywords
station
robot
plate spring
puts
die
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CN202111229545.6A
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Chinese (zh)
Inventor
张治军
沈文军
王凤
徐华华
谢娟
王义博
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Dongfeng Motor Chassis Systems Co Ltd
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Dongfeng Motor Chassis Systems Co Ltd
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Priority to CN202111229545.6A priority Critical patent/CN114102053A/en
Publication of CN114102053A publication Critical patent/CN114102053A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23PMETAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P15/00Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23PMETAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P23/00Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass
    • B23P23/04Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass for both machining and other metal-working operations

Abstract

The invention relates to a method and a system for processing the rolled rear end part of a plate spring. The system is sequentially provided with a feeding frame, an inductor, descaling equipment, a rolling mill, a thermal straightening machine, a six-station hydraulic press, a bracket and a discharging frame from front to back, and further comprises a first robot, a second robot, a third robot, a fourth robot, a fifth robot and a sixth robot which are sequentially arranged from front to back. The purpose of rapid heating can be achieved by adopting the inductor for heating, and the oxide skin can be efficiently removed at low cost by adopting high-pressure water dephosphorization equipment. By adopting the six-station hydraulic press, different products can be rolled by utilizing waste heat cutting, the die does not need to be replaced, the workload is reduced, the die replacement time is shortened, and the production efficiency is improved.

Description

Method and system for machining rolled rear end of plate spring
Technical Field
The invention relates to the technical field of automobile part processing, in particular to a method and a system for processing a rolled rear end part of a plate spring.
Background
Three-station hydraulic presses and four-station hydraulic presses are now more common in the leaf spring industry. Each time a rolled product is replaced, one or more of the dies of the press must be removed and replaced with the corresponding desired die. The average time spent on changing molds per shift of 8 hours is 1.5 hours, greatly affecting production efficiency. In the existing production process, the yield of finished products is not ideal due to the heating temperature, the oxide scale on the surface of the plate spring and the like.
Disclosure of Invention
Based on the above description, the invention provides a method and a system for machining the rolled rear end part of a plate spring, so as to solve the problem that the traditional production method is low in efficiency.
The technical scheme for solving the technical problems is as follows:
a method for machining the rolled rear end of a plate spring comprises the following operation steps:
the method comprises the following steps: a first robot takes materials from the material loading frame and then puts the taken plate spring into heating equipment for heating treatment; through heating treatment, the hardness of the plate spring is reduced, the rear end cutting processing is facilitated, and the oxide skin at the rear end is removed conveniently;
step two: the second robot takes out the heated plate spring from the heating equipment and then puts the plate spring into descaling equipment for descaling; the processing quality of the plate spring is ensured by removing oxide skin;
step three: the third robot takes the plate spring without the oxide skin from the oxide skin removing equipment and then puts the plate spring into a rolling mill for rolling treatment; by flattening the ends of the steel plate, the weight can be reduced, the stress distribution is uniform, and the riding comfort of the automobile can be improved.
Step four: taking out the rolled plate spring from the rolling mill by a third robot, and then putting the plate spring into a thermal straightening machine for straightening treatment; by straightening the plate spring, the lateral bending of the steel plate in the width direction is reduced, and the steel plate is straight after rolling.
Step five: taking the straightened plate spring out of the thermal straightening machine by a fourth robot, and then putting the straightened plate spring into the first station for end cropping;
step six: the fourth robot takes out the plate spring from the first station, then puts the plate spring into the second station or the third station, and carries out rib pressing and groove pressing or punching processing on the end part of the plate spring;
step seven: the fifth robot takes out the processed plate spring from the second station or the third station, then puts the plate spring into the fourth station or the fifth station, and performs corner cutting or edge cutting treatment on the plate spring;
step eight: the fifth robot takes out the edge-cut plate spring from the fourth station or the fifth station and then puts the plate spring into the sixth station for bending treatment;
step nine: the fifth robot takes out the bent plate spring from the sixth station and then puts the plate spring into a bracket;
step ten: the sixth robot takes out the leaf spring from the bracket and then puts it into the blanking frame.
Preferably, in the first step, the heating device is an inductor. Through inductor electrical heating, can reach the purpose for the leaf spring rapid heating, shorten heat time, the temperature that can accurate control simultaneously heats.
Preferably, the heating temperature is 950-1050 ℃ and the heating time is 200-240 seconds. By accurately controlling the heating temperature and the heating time, the consistency and the reliability of the processing quality are ensured.
Preferably, in the second step, the descaling device is a high-pressure water dephosphorization device. High-pressure water is adopted to remove the oxide skin, the removal rate is high, and the comprehensive cost is low.
Preferably, the high-pressure water pressure is 14-16Mpa, and the water speed is 5-6L/s. Through accurate control water pressure and discharge for the clearance rate of cinder is high, avoids overcooling leaf spring simultaneously.
Preferably, the water outlet time is 4 seconds.
Preferably, in the third step, the leaf spring is subjected to short rolling or long rolling.
Preferably, the temperature of the plate spring after the rolling in the rolling mill is greater than or equal to 800 ℃.
A processing system for the rolled rear end part of a plate spring is used for realizing the operation method of any one of claims 1 to 8, and comprises a feeding frame, an inductor, a descaling device, a rolling mill, a thermal straightening machine, a six-station hydraulic press, a bracket and a discharging frame which are sequentially arranged from front to back, and further comprises a first robot, a second robot, a third robot, a fourth robot, a fifth robot and a sixth robot which are sequentially arranged from front to back; the first robot is positioned between the feeding frame and the inductor, the second robot is close to the descaling device, the third robot is positioned between the rolling mill and the thermal straightening machine, the fourth robot and the fifth robot are close to the six-station hydraulic press, and the sixth robot is positioned between the bracket and the feeding frame; the six-station hydraulic press comprises a first station, a second station, a third station, a fourth station, a fifth station and a sixth station, wherein a head cutting die, a rib pressing groove die, a three-hole punching die, a corner cutting die, a trimming die and a bending die are arranged on the six stations.
Preferably, the first station and the sixth station are respectively provided with a head cutting die and a bending die, the second station and the third station are provided with a rib pressing groove die and a three-hole punching die, and the fourth station and the fifth station are provided with a corner cutting die and an edge cutting die.
Compared with the prior art, the technical scheme of the application has the following beneficial technical effects: the application relates to a method and a system for machining the rolled rear end part of a plate spring, wherein the plate spring can be machined fully automatically and efficiently, the purpose of rapid heating can be achieved by adopting an inductor for heating, and oxide skin can be removed efficiently and inexpensively by adopting high-pressure water dephosphorization equipment. And a six-station hydraulic press is adopted, and the rolling waste heat is utilized to process the end part of the steel plate spring. Therefore, even if the rolling variety is frequently replaced, the die does not need to be replaced, and the workload is reduced. The time for replacing the die is shortened, and the production efficiency is improved. Labor intensity is reduced, most of work is completed by the robot, and only one operator is needed to monitor the production line. Can meet the requirement of processing most products.
Drawings
FIG. 1 is a flow chart of the steps of the process of the present invention;
FIG. 2 is a layout view of a system according to the present invention;
in the drawings, the components represented by the respective reference numerals are listed below:
1. a feeding frame; 2. an inductor; 3. descaling equipment; 4. a rolling mill; 5. a thermal straightener; 6. a bracket; 7. a blanking frame; r1, a first robot; r2, second robot; r3, third robot; r4, fourth robot; r5, fifth robot; r6, sixth robot; g1, a first station; g2, a second station; g3, a third station; g4, a fourth station; g5, a fifth station; g6, a sixth station;
m1, cutting head mould; m2, pressing a rib groove die; m3, punching a three-hole die; m4, corner cutting die; m5, trimming die; m6, bending die.
Detailed Description
To facilitate an understanding of the present application, the present application will now be described more fully with reference to the accompanying drawings. Embodiments of the present application are set forth in the accompanying drawings. This application may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
In this embodiment, as shown in fig. 1 and 2. A method for processing the rolled rear end part of a plate spring,
the operation steps are as follows:
the method comprises the following steps: the first robot R1 takes materials from the feeding rack 1, and then puts the taken plate spring into heating equipment for heating treatment; the first robot R1 takes out the plate spring to be processed from the loading frame 1, and through heat treatment, reduces the hardness of the plate spring, facilitating rear end cutting processing and removing scale at the rear end.
Step two: the second robot R2 takes out the heated plate spring from the heating apparatus, and then puts it into the descaling apparatus 3 to perform descaling; the surface of the steel plate is oxidized to easily form scale, and if the scale on the surface is not removed during forging or rolling, the scale is easily pressed into the forged piece, and the steel plate becomes a waste product seriously. The life of the die is also reduced during forging or rolling.
Step three: the third robot R3 takes the plate spring with the oxide skin removed from the oxide skin removing device 3 and then puts the plate spring into the rolling mill 4 for rolling treatment;
step four: the third robot R3 takes out the rolled plate spring from the rolling mill 4 and then puts the plate spring into the hot straightening machine 5 for straightening treatment; the hot straightening machine 5 is used for straightening the rolled plate spring, so that the lateral bending of the steel plate in the width direction is reduced, and the rolled steel plate is straight.
Step five: the fourth robot R4 takes out the straightened plate spring from the heat straightening machine 5, and then puts the plate spring into the first station G1 for end cropping; the six-station hydraulic press is adopted in the application, and the rolling waste heat is utilized to process the end part of the leaf spring. The six-station hydraulic press is respectively corresponding to a first station G1, a second station G2, a third station G3, a fourth station G4, a fifth station G5 and a sixth station G6. And a set of processing die is respectively installed at the six stations. When the plate spring is processed, a head cutting die M1, a rib groove punching die M2, a three-hole punching die M3, a corner cutting die M4, an edge cutting die M5 and a bending die M6 are respectively arranged at a first station G1, a second station G2, a third station G3, a fourth station G4, a fifth station G5 and a sixth station G6. The positions of the rib groove punching die M2 and the three-hole punching die M3 can be changed, namely the three-hole punching die M3 and the rib groove punching die M2 are respectively installed at the second station G2 and the third station G3. The positions of the corner cutting die M4 and the edge cutting die M5 can be changed, namely the fourth station G4 and the fifth station G5 are respectively provided with the edge cutting die M5 and the corner cutting die M4. Therefore, even if different types of varieties are rolled, the die does not need to be replaced, and the workload is reduced.
Step six: a fourth robot R4 takes out the plate spring from the first station G1, then puts the plate spring into the second station G2 or the third station G3, and carries out end ribbing, grooving or punching treatment on the plate spring;
step seven: the fifth robot R5 takes out the processed plate spring from the second station G2 or the third station G3, then puts the plate spring into the fourth station G4 or the fifth station G5, and carries out corner cutting or edge cutting treatment on the plate spring;
step eight: the fifth robot R5 takes out the leaf spring after trimming from the fourth station G4 or the fifth station G5 and then puts the leaf spring into the sixth station G6 for bending processing;
step nine: the fifth robot R5 takes out the bent plate spring from the sixth station G6 and then puts the plate spring into a bracket;
step ten: the sixth robot R6 takes out the leaf spring from the carriage and then puts it into the hopper 7.
The second station G2 and the third station G3 are fixed in position. And a bead groove punching die M2 and a three-hole punching die M3 are respectively arranged at the second station G2 and the third station G3, or a three-hole punching die M3 and a bead groove punching die M2 are respectively arranged. The plate springs of different models can be selectively subjected to rib pressing or punching processing. In operation, the fourth robot R4 takes out the leaf spring with its end cut from the first station G1, and puts it into the second station G2 to perform the rib and groove pressing process, or puts it into the third station G3 to perform the punching process.
A bead-pressing groove die M2 for forming a convex hull, called a bead, on the top of the steel plate end. While a groove is formed below the end of the steel plate. During assembly, the ribs at the ends of the second sheet of steel plate fall into the slots of the first sheet. The rib at the end part of the third steel plate falls into the groove of the second steel plate, and so on. The main effect is to prevent the steel sheet and transversely the dislocation after the assembly, can play spacing effect. And the three-hole punching die M3 is used for punching 3 holes on the plate spring, and one hole is a rivet hole. The other two holes are noise reduction holes. In order to reduce friction and noise between the steel plates, a plastic noise reduction sheet is arranged between the two steel plates, and two small bosses are arranged on the plastic noise reduction sheet and just arranged in two noise reduction holes.
The fourth station G4 and the fifth station G5 are fixed in position. The fourth station G4 and the fifth station G5 are respectively provided with a corner cutting die M4 and an edge cutting die M5, or are respectively provided with an edge cutting die M5 and an angle cutting die M4. And (4) carrying out corner cutting or edge cutting treatment on the plate spring. In operation, the fifth robot R5 takes out the punched leaf spring from the third station G3, and puts the leaf spring into the fourth station G4 to perform corner cutting or puts the leaf spring into the fifth station G5 to perform edge cutting.
In this embodiment, as shown in fig. 1 and 2. In the first step, the heating device is an inductor 2. Through 2 electrical heating of inductor, can reach the purpose of giving the leaf spring rapid heating, shorten heat time, the temperature that can accurate control simultaneously heats. The heating temperature is 950-1050 ℃, and the heating time is 200-240 seconds. The plate spring is heated to 950-1050 ℃, so that rolling processing and subsequent cutting processing are facilitated, and subsequent descaling by high-pressure water is facilitated.
In this embodiment, as shown in fig. 1 and 2. In the second step, the descaling device 3 is a high-pressure water dephosphorization device. When the rolled piece is cooled by high-pressure water jet, the scale is forced to be peeled off from the steel plate by the tangential shearing force generated by the difference of the shrinkage rates of the steel plate and the scale layer on the surface layer of the steel plate. The water pressure of the high-pressure water is 14-16Mpa, and the water speed is 5-6L/s. The water outlet time is 4 seconds. When the water spraying amount per square centimeter area is large, the cooling speed is high, the cooling effect is increased, the temperature difference between the steel plate and the oxide scale layer is increased, and when the water spraying amount is controlled to be an optimal value, the oxide scale layer is just peeled off after being cooled and shrunk, the steel plate is not cooled, and the rear-end cutting process is convenient.
In this embodiment, as shown in fig. 1 and 2. And in the third step, performing short rolling or long rolling on the plate spring. And after the plate spring is put into the rolling mill 4 for rolling, the temperature is more than or equal to 800 ℃. The phenomenon that the steel plate is easy to crack and has larger damage to equipment when the steel plate is rolled at too low temperature is avoided. The rolling mill 4 flattens the end of the steel plate, so that the weight can be reduced, the stress distribution is uniform, and the riding comfort of the automobile can be improved. The end flattening can be divided into short flattening and long flattening. The short flattening is generally applied to a plurality of plate springs, and the flattening length is generally less than 2 times of the plate width; the long-rolled flat, full-length conical spring leaf is generally applied to a few leaf spring.
In this embodiment, as shown in fig. 1 and 2. A processing system for rolled rear end parts of leaf springs comprises a feeding frame 1, an inductor 2, a descaling device 3, a rolling mill 4, a heat straightening machine 5, a six-station hydraulic press, a bracket 6 and a blanking frame 7 which are sequentially arranged from front to back, and further comprises a first robot R1, a second robot R2, a third robot R3, a fourth robot R4, a fifth robot R5 and a sixth robot R6 which are sequentially arranged from front to back; a first robot R1 is positioned between the feeding rack 1 and the inductor 2, a second robot R2 is close to the descaling device 3, a third robot R3 is positioned between the rolling mill 4 and the heat straightening machine 5, a fourth robot R4 and a fifth robot R5 are close to a six-station hydraulic press, and a sixth robot R6 is positioned between the bracket 6 and the feeding rack 7; the six-station hydraulic press comprises a first station G1, a second station G2, a third station G3, a fourth station G4, a fifth station G5 and a sixth station G6, and a head cutting die M1, a rib groove die M2, a three-hole punching die M3, a corner cutting die M4, an edge cutting die M5 and a bending die M6 are correspondingly and respectively installed. The system comprises a parallel processing line and a production line, wherein the processing line comprises a feeding frame 1, an inductor 2, a descaling device 3, a rolling mill 4, a thermal straightening machine 5, a six-station hydraulic press, a bracket 6 and a blanking frame 7 which are arranged from front to back; the assembly line comprises a first robot R1, a second robot R2, a third robot R3, a fourth robot R4, a fifth robot R5 and a sixth robot R6 from front to back.
The first robot R1 sucks the plate spring from the loading frame 1, and then feeds the plate spring to the inductor 2 to heat the plate spring. After the leaf springs are heated to a suitable temperature, the second robot R2 grips the leaf springs from the inductor 2 and then sequentially feeds the leaf springs into the descaling device 3. The third robot R3 grips the plate spring after descaling and then feeds it into the rolling mill 4 and the hot straightener 5. And the fourth robot R4 grabs the hot and straightened plate spring and then sequentially sends the plate spring into a first station G1, a second station G2 or a third station G3 in a six-station hydraulic press machine for end machining. The fifth robot R5 grips the plate spring from the second station G2 or the third station G3, and then sequentially feeds the plate spring to the fourth station G4 or the fifth station G5 and the sixth station G6 in the six-station hydraulic press, performs end processing, and then feeds the plate spring to the carriage 6. The robot R6 sucks the leaf spring from the carriage 6 and then feeds the leaf spring into the hopper 7.
And (4) rolling the plate spring by using a six-station hydraulic press and then processing the end part. A head cutting die M1 is arranged at a first station G1; a second station G2 is provided with a bead pressing groove die M2; a three-hole punching die M3 is arranged at a third station G3; a corner cutting die M4 is arranged at a fourth station G4; a fifth station G5 is provided with an edge cutting die M5; a press brake M6 is mounted at the sixth station G6. The rib groove die M2 and the three-hole punching die M3 can be interchanged in position, the die corner cutting die M4 and the trimming die M5 can be interchanged in position, and the positions of other dies cannot be changed. After the six sets of dies are arranged, if rolling varieties are replaced, the six sets of dies do not need to be disassembled and replaced. If the end part processing procedure of the product is as follows: cutting head → punching → trimming → bending. The hydraulic press with four stations is only required to work, the first station G1, the third station G3, the fifth station G5 and the sixth station G6 are enabled to work, and the second station G2 and the fourth station G4 do not work. If the end part processing procedure of the product is as follows: cutting head → pressing tendon groove → cutting corner → pressing bending. The hydraulic press with four stations is only required to work, the first station G1, the second station G2, the fourth station G4 and the sixth station G6 are enabled to work, and the third station G3 and the fifth station G5 do not work.
Through carrying out research and analysis on the end part processing structures of a large number of variable-section leaf spring products, the end part processing after rolling of 99% of leaf spring products can be realized by utilizing six sets of dies, and the dies do not need to be replaced. The end part of a very small amount of rolled steel plate springs is complex in structure, a complex die is needed, and other common rolling mills can be used for rolling and processing the end part. Therefore, the end part processing after rolling of 99% of the steel plate spring products can be realized by utilizing the six-station hydraulic press.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims (10)

1. A method for processing a rolled rear end part of a plate spring is characterized by comprising the following operation steps:
the method comprises the following steps: a first robot (R1) takes materials from the feeding rack (1), and then puts the taken plate spring into heating equipment for heating treatment;
step two: the second robot (R2) takes the heated plate spring out of the heating equipment and then puts the plate spring into descaling equipment (3) for descaling treatment;
step three: a third robot (R3) takes the plate spring with the oxide skin removed from the oxide skin removing device (3) and then puts the plate spring into a rolling mill (4) for rolling treatment;
step four: a third robot (R3) takes out the rolled plate spring from the rolling mill (4) and then puts the plate spring into a hot straightening machine (5) for straightening treatment;
step five: a fourth robot (R4) takes out the straightened plate spring from the heat straightener (5), and then puts the plate spring into a first station (G1) for end cropping;
step six: a fourth robot (R4) takes out the plate spring from the first station (G1), then puts the plate spring into the second station (G2) or the third station (G3), and carries out end ribbing, grooving or punching treatment on the plate spring;
step seven: a fifth robot (R5) takes out the processed plate spring from the second station (G2) or the third station (G3), then puts the plate spring into the fourth station (G4) or the fifth station (G5), and carries out corner cutting or edge cutting treatment on the plate spring;
step eight: a fifth robot (R5) takes out the leaf spring after trimming from the fourth station (G4) or the fifth station (G5), and then puts the leaf spring into a sixth station (G6) for bending processing;
step nine: the fifth robot (R5) takes out the bent plate spring from the sixth station (G6) and then puts the plate spring into a bracket;
step ten: a sixth robot (R6) takes out the leaf spring from the carrier and then puts it into the hopper (7).
2. The method for machining the rolled rear end of the leaf spring according to claim 1, wherein in the first step, the heating device is an inductor (2).
3. The method as claimed in claim 2, wherein the heating temperature is 950 to 1050 ℃ and the heating time is 200 to 240 seconds.
4. The method for machining the rolled rear end of the plate spring according to claim 1, wherein in the second step, the descaling device (3) is a high-pressure water dephosphorization device.
5. The method as claimed in claim 4, wherein the pressure of the high pressure water is 14 to 16Mpa and the water velocity is 5 to 6 l/s.
6. The method for machining a rolled rear end portion of a plate spring according to claim 5, wherein the water discharge time is 4 seconds.
7. The rolled rear end processing method for a plate spring according to claim 1, 2, 3, 4 or 5, wherein in the third step, the plate spring is subjected to short rolling or long rolling.
8. A method for rolling a rolled rear end portion of a plate spring according to claim 1, 2, 3, 4 or 5, wherein the temperature of the plate spring after the plate spring is rolled in the rolling mill (4) is 800 ℃ or higher.
9. A rear end processing system for rolling a plate spring is used for realizing the operation method of any one of claims 1 to 8, and is characterized by comprising an upper material rack (1), an inductor (2), a descaling device (3), a rolling mill (4), a heat straightening machine (5), a six-station hydraulic press, a bracket (6) and a lower material rack (7) which are sequentially arranged from front to back, and further comprising a first robot (R1), a second robot (R2), a third robot (R3), a fourth robot (R4), a fifth robot (R5) and a sixth robot (R6) which are sequentially arranged from front to back; the first robot (R1) is positioned between the feeding rack (1) and the inductor (2), the second robot (R2) is close to the descaling device (3), the third robot (R3) is positioned between the rolling mill (4) and the heat straightening machine (5), the fourth robot (R4) and the fifth robot (R5) are close to the six-station hydraulic press, and the sixth robot (R6) is positioned between the bracket (6) and the blanking rack (7); six station hydraulic press include first station (G1), second station (G2), third station (G3), fourth station (G4), fifth station (G5), sixth station (G6), install crop mould (M1), bead groove mould (M2), towards three hole moulds (M3), corner cut mould (M4), side cut mould (M5), press bending mould (M6) on the six stations.
10. The system for processing the rolled rear end of the plate spring as claimed in claim 9, wherein the first station (G1) and the sixth station (G6) are respectively provided with a cropping die (M1) and a bending die (M6), the second station (G2) and the third station (G3) are respectively provided with a rib groove die (M2) and a three-hole punching die (M3), and the fourth station (G4) and the fifth station (G5) are respectively provided with a corner cutting die (M4) and a trimming die (M5).
CN202111229545.6A 2021-10-21 2021-10-21 Method and system for machining rolled rear end of plate spring Pending CN114102053A (en)

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CN202111229545.6A CN114102053A (en) 2021-10-21 2021-10-21 Method and system for machining rolled rear end of plate spring

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Application Number Priority Date Filing Date Title
CN202111229545.6A CN114102053A (en) 2021-10-21 2021-10-21 Method and system for machining rolled rear end of plate spring

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114700753A (en) * 2022-04-20 2022-07-05 宝鸡市德立钛业有限责任公司 Titanium bar forming process system

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102744574A (en) * 2012-07-19 2012-10-24 安徽安簧机械股份有限公司 Full-automatic production technology and production equipment for variable cross-section reed blank
CN105642668A (en) * 2014-11-09 2016-06-08 东风汽车悬架弹簧有限公司 Automatic production line for rolling of automobile plate spring

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102744574A (en) * 2012-07-19 2012-10-24 安徽安簧机械股份有限公司 Full-automatic production technology and production equipment for variable cross-section reed blank
CN105642668A (en) * 2014-11-09 2016-06-08 东风汽车悬架弹簧有限公司 Automatic production line for rolling of automobile plate spring

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114700753A (en) * 2022-04-20 2022-07-05 宝鸡市德立钛业有限责任公司 Titanium bar forming process system
CN114700753B (en) * 2022-04-20 2023-10-13 宝鸡市德立钛业有限责任公司 Titanium rod forming process system

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Application publication date: 20220301