CN112588955A - Automatic production line for manufacturing U-shaped clips of leaf springs - Google Patents
Automatic production line for manufacturing U-shaped clips of leaf springs Download PDFInfo
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- CN112588955A CN112588955A CN202011394593.6A CN202011394593A CN112588955A CN 112588955 A CN112588955 A CN 112588955A CN 202011394593 A CN202011394593 A CN 202011394593A CN 112588955 A CN112588955 A CN 112588955A
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 35
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 71
- 239000010959 steel Substances 0.000 claims abstract description 71
- 230000007246 mechanism Effects 0.000 claims abstract description 68
- 238000000034 method Methods 0.000 claims abstract description 20
- 230000008569 process Effects 0.000 claims abstract description 17
- 239000000463 material Substances 0.000 claims description 76
- 238000004080 punching Methods 0.000 claims description 49
- 239000003638 chemical reducing agent Substances 0.000 claims description 44
- 238000010008 shearing Methods 0.000 claims description 19
- 238000007599 discharging Methods 0.000 claims description 8
- 230000009471 action Effects 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims description 2
- 230000007306 turnover Effects 0.000 claims 1
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D35/00—Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
- B21D35/002—Processes combined with methods covered by groups B21D1/00 - B21D31/00
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Press Drives And Press Lines (AREA)
Abstract
The invention discloses an automatic production line for manufacturing a U-shaped clamp of a leaf spring. Firstly, each unit is tested to operate normally independently, then the flat steel is manually fed into a roll opening of the roll aligning mechanism along the length direction, and the flat steel passes through each station one by one to be processed in a series. After one flat steel is processed, the residual stub bar is manually cleaned by a tool, a second flat steel is simultaneously fed in, the processes are sequentially circulated, and the whole operation process only needs one person to watch. The invention has simple structure and low operation cost, and is convenient for carrying out various processes on the flat steel. The automation is very easy to realize, and the number of workers is reduced.
Description
Technical Field
The invention relates to the technical field of automatic production lines, in particular to an automatic production line for manufacturing a U-shaped clamp of a leaf spring.
Background
With the development of social economy, the labor intensity of enterprises is high, and meanwhile, the labor cost is increased, so that the enterprises urgently need to provide an automation unit to reduce the labor intensity and the labor cost. In actual production, products or workpieces need to be processed independently or in multiple processes and multiple stations, and the multiple processes or stations only perform simple and repeated single actions. How to replace the procedures (stations) which only do simple and repeated single actions by equipment and reduce manual work posts becomes a problem which needs to be solved urgently at present.
The U-shaped clamp for the leaf spring is generally manufactured by two processes: blanking process (also called material breaking) and forming process. The blanking refers to cutting flat steel (a raw material of a U-shaped clamp of a steel plate spring) according to the required size, and the forming refers to bending the cut flat steel into a U shape. The two processes are both punched by a punch press, the actions are single and repeated, the automation is very easy to realize, and the number of workers is reduced.
Disclosure of Invention
The invention aims to provide an automatic production line for manufacturing a U-shaped clamp of a steel plate spring, which has the advantages of simple structure and low operation cost, and flat steel passes through each procedure (station) one by one, so that the flat steel can be conveniently processed by various processes.
In order to achieve the purpose, the technical scheme of the invention is that an automatic production line for manufacturing a U-shaped clamp of a steel plate spring is characterized by comprising a feeding unit, a material conveying unit, a material punching and shearing unit and a material punching unit;
the feeding unit comprises a first speed reducer mechanism, a roller aligning mechanism and a feeding positioning mechanism; the first speed reducer mechanism consists of a motor and a speed reducer, the motor drives the speed reducer to rotate, and the speed reducer is connected with the counter roll mechanism through a chain to drive the counter roll mechanism to rotate; the feeding positioning mechanism comprises a first slide way, a first positioning block and a proximity switch S1, wherein the proximity switch S1 is arranged on the first positioning block, the position of the proximity switch is changed along with the movement of the first positioning block, and the first slide way is arranged on a lower die of a clip blanking and punching die and is parallel to the conveying chain;
the material conveying unit is arranged between the material punching and shearing unit and the material punching unit and comprises a second speed reducer mechanism and a conveying chain; the second speed reducer mechanism consists of a motor and a speed reducer, the motor drives the speed reducer to rotate, the speed reducer drives the conveying chain, and the conveying chain conveys the flat steel from the material punching and shearing unit to the material punching and shearing unit; the second reducer mechanism is faster than the first reducer mechanism;
the material punching and shearing unit comprises a first punch and a clip blanking and punching die, wherein the clip blanking and punching die consists of an upper die, a lower die and a bottom die, the bottom die is arranged on the working table surface of the first punch, and the lower die is arranged on the bottom die;
the material stamping unit comprises a second punch, a clip forming die, a positioning cylinder, a second slideway, a second positioning block, a proximity switch S2 and a discharging mechanism; the clamp forming die consists of an upper die, a lower die and a bottom die, wherein the bottom die is arranged on the working table surface of the second punch press, and the lower die is arranged on the bottom die; wherein the discharging mechanism consists of a material pushing cylinder and a material pushing plate; two lead rods arranged on a base provided with the pushing cylinder and a cylinder rod of the pushing cylinder form a triangle, the pushing plate is fixed, the stability of the pushing plate is ensured, and the pushing plate is not deformed and does not displace under resistance during pushing, so that the flat steel is not overturned; the material pushing cylinder is arranged on the working table surface of the second punch;
one end of the conveying chain extends into the clip blanking and punching die and is aligned with the center of the lower die of the clip blanking and punching die, and the upper surface of the chain is lower than that of the lower die of the clip blanking and punching die; the other end of the chain extends into the clip forming die and is parallel to the lower die of the clip forming die, and the upper surface of the chain and the upper surface of the lower die of the clip lower forming die are on the same horizontal plane;
a clip blanking and punching die is arranged on a first punch, and a first slideway is arranged on a lower die of the clip blanking and punching die; and a clip forming die is arranged on the second punch, a bottom die of the clip forming die is provided with a proximity switch S2, a positioning cylinder, a second slideway and a second positioning block, and the proximity switch S2 is arranged beside the conveying chain and used for detecting whether materials exist on the conveying chain.
Furthermore, the positioning cylinder, the second slideway and the second positioning block are arranged on the working table of the second punch press or on the bottom die of the clip forming die.
Furthermore, the centers of the positioning cylinder, the second slide way and the second positioning block are aligned on the same straight line, and the connecting line of the centers of the positioning cylinder and the second positioning block is parallel to the lower die of the clip forming die.
Furthermore, the moving direction of the material pushing cylinder is vertical to the conveying direction of the flat steel; the moving direction of the positioning cylinder is consistent with the conveying direction of the flat steel.
Further, the conveyor chain employs a double row roller chain.
Furthermore, the roller mechanism comprises an upper roller and a lower roller, wherein the lower roller is fixed, the upper roller is movable, the gap between the upper roller and the lower roller can be adjusted through flat steels with different thicknesses, and the lower roller is provided with a chain wheel and is connected with the speed reducer of the first speed reducer mechanism through a chain.
The invention has simple structure and low operation cost, and is convenient for carrying out various processes on the flat steel. The automation is very easy to realize, and the number of workers is reduced.
Drawings
FIG. 1 is a schematic view of an automatic production line for manufacturing U-shaped clips of leaf springs.
Figure 2 is a schematic view of a feed unit.
Fig. 3 is a schematic view of a material shearing and punching unit.
Fig. 4 is a schematic view of a material delivery unit.
Fig. 5 is a schematic front view of a material stamping unit.
Fig. 6 is a schematic top view of a material stamping unit.
The reference numbers illustrate: the device comprises a first speed reducer mechanism 1, a roller aligning mechanism 2, a second speed reducer mechanism 3, a conveying chain 4, a first punch 5, a clip blanking and punching die 6, a second punch 7, a clip forming die 8, a positioning cylinder 9, a material pushing cylinder 10, a material pushing plate 11, a first slide 12, a first positioning block 13, a second slide 14 and a second positioning block 15.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings.
As shown in fig. 1, the first punch press 5 of the material punching and shearing unit and the second punch press 7 of the material punching and shearing unit are adjusted so that the lower dies of the clip blanking punch die 6 and the clip forming die 8 mounted on the first punch press 5 and the second punch press 7 are on the same straight line.
As shown in fig. 2, the feeding unit is composed of a first speed reducer mechanism 1, a roll aligning mechanism 2, and a feeding positioning mechanism. The first speed reducer mechanism 1 consists of a motor and a speed reducer; the roll aligning mechanism 2 consists of an upper roll and a lower roll; the feeding positioning mechanism consists of a first slide way 12, a first positioning block 13 and a proximity switch S1, wherein the proximity switch S1 is arranged on the first positioning block 13 and changes along with the movement position of the first positioning block 13.
As shown in fig. 3, the material punching and shearing unit is composed of a first press 5 and a clip blanking and punching die 6. One end of the conveying chain 4 extends into the clip discharging and punching die 6, is arranged on the bottom die of the clip discharging and punching die 6 and is aligned with the center of the lower die of the clip discharging and punching die 6. A first positioning block 13 and a first slideway 12 of the feeding positioning mechanism are parallel to the conveying chain 4 and are arranged on a bottom die of the clamp blanking and punching die 6.
As shown in fig. 4, the material conveying unit is composed of a speed reducer mechanism 3 and a conveying chain 4.
As shown in fig. 5 and 6, the material stamping unit is composed of a second punch 7, a clip forming die 8, a positioning cylinder 9, a second slideway 14, a second positioning block 15, a proximity switch S2, and a discharging mechanism. The other end of the conveying chain 4 extends into the clip forming die 8. A proximity switch S2 is mounted on the bottom die of the clip forming die 8. The centers of the positioning cylinder 9, the second slide way 14 and the second positioning block 15 are aligned on the same straight line, and the center connecting line of the positioning cylinder 9 and the second positioning block 15 is parallel to the lower die of the clip forming die 9.
The working principle is as follows:
1. the working principle of the mechanical mechanism is as follows:
the two punching machines are arranged in parallel along the material conveying direction. Install on the table surface of first punch press 5 and second punch press 7 with checkpost unloading cut-out press 6 and checkpost forming die 8, adjust checkpost unloading cut-out press 6, checkpost forming die 8, the position of double roll mechanism 2, make 6 lower mould materials of checkpost unloading cut-out press place the plane, the plane is placed to 8 lower mould materials of checkpost forming die, the plane is placed at same horizontal plane to the material of the lower roll of double roll mechanism 2, ensure that the material can follow the material and dash and cut the unit and carry material punching press unit.
The first slideway 12 of the feeding positioning mechanism is parallel to the conveying chain 4, and the position of the first positioning block 13 is adjusted according to the length of the required material, and the proximity switch S1 moves along with the adjustment. Two ends of the conveying chain 4 are in the same horizontal plane, so that materials are conveyed to the material stamping unit from the material stamping and shearing unit.
The center of the positioning cylinder 9, the center of the second positioning block 15 and the center of the material at the final position of the clip forming die 8 are on the same straight line, and the positioning cylinder 9 and the second positioning block 15 can be installed on the working platform of the second punch 7 or the bottom die of the clip forming die 8. And adjusting the second positioning block 15 according to the blanking length of the required flat steel, so that the distance from the second positioning block 15 to the center of the lower die of the clip forming die 9 is equal to half of the required flat steel blanking length. The moving direction of the positioning cylinder 9 is consistent with the conveying direction of the flat steel.
The material pushing cylinder 10 is arranged on a bottom plate of a working table of the second punch press 7, and the two lead rods and the cylinder rod of the material pushing cylinder 10 form a triangular fixed material pushing plate 11, so that the material pushing plate 11 is ensured not to deform and displace under resistance when pushing materials, and the flat steel is prevented from overturning. The moving direction of the material pushing cylinder 10 is vertical to the conveying direction of the flat steel.
2. The automation working principle is as follows:
the first speed reducer mechanism 1 works to drive the roll aligning mechanism 2 to rotate, the flat steel is manually sent into the roll opening of the roll aligning mechanism 2 along the length direction, the roll aligning mechanism 2 drives the flat steel to move along the length direction, when the flat steel reaches the proximity switch S1, the proximity switch S1 sends a signal, the first speed reducer mechanism 1 stops working, the roll aligning mechanism 2 does not rotate any more, and the flat steel does not move any more. Meanwhile, the first punch 5 acts once after receiving the signal, punching and shearing are achieved, and the blanking process is completed.
After the first punch press 5 acts for once resetting, the second speed reducer mechanism 3 works after receiving a signal to drive the conveying chain 4 to rotate, the conveying chain 4 drives the flat steel to be conveyed from the material punching and shearing unit to the material punching unit, and the material conveying is completed.
When the flat steel reaches the proximity switch S2, the proximity switch S2 sends a signal, the second speed reducer mechanism 3 stops working, and the flat steel does not move any more. The material pushing cylinder 10 is connected with a signal action to push the flat steel to the lower die of the clip forming die 8. The lower die of the clip forming die 8 is provided with a stop dog, the flat steel is stopped at the final position, the positioning cylinder 9 acts to push the flat steel to return after touching the second positioning block 15, the pushing cylinder 10 returns, and the flat steel stops on the lower die of the clip forming die 8. The second punch 7 acts once, and the flat steel is punched. After the second punch 7 is reset, the pushing cylinder 10 receives a signal, the action is performed once again, the bent and formed clip is detached from the upper die of the clip forming die 8, and the first clip is manufactured. After the material pushing cylinder 10 returns, the first speed reducer transmission mechanism 1 receives signals to work, and the second clamp is manufactured and circulates in sequence.
The using method comprises the following steps:
as shown in figure 3, according to the required flat steel blanking length, the first positioning block 13 of the feeding positioning mechanism is adjusted, so that the distance from the proximity switch S1 to the center of the lower die of the clip blanking punching die 6 is equal to the required flat steel blanking length. As shown in fig. 5, according to the required flat steel blanking length, the second positioning block 15 of the material stamping unit is adjusted, so that the distance from the second positioning block 15 to the center of the lower die of the clip forming die 8 is equal to half of the required flat steel blanking length.
Firstly, each unit is tested to operate normally independently, then the flat steel is manually fed into a roll opening of a roll aligning mechanism 2 along the length direction, and the flat steel passes through each station one by one to be processed in a series. After one flat steel is processed, the residual stub bar is manually cleaned by a tool, a second flat steel is simultaneously fed in, the processes are sequentially circulated, and the whole operation process only needs one person to watch.
The automatic production line is suitable for manufacturing the U-shaped clips of the leaf springs.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that various changes, modifications and substitutions can be made without departing from the spirit and scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. An automatic production line for manufacturing a U-shaped clamp of a steel plate spring is characterized by comprising a feeding unit, a material conveying unit, a material punching and shearing unit and a material punching unit;
the feeding unit comprises a first speed reducer mechanism (1), a roll mechanism (2) and a feeding positioning mechanism; the first speed reducer mechanism (1) consists of a motor and a speed reducer, the motor drives the speed reducer to rotate, and the speed reducer is connected with the roll mechanism (2) through a chain to drive the roll mechanism (2) to rotate; the feeding positioning mechanism comprises a first slide way (12), a first positioning block (13) and a proximity switch S1, wherein the proximity switch S1 is installed on the first positioning block (13), the position of the proximity switch is changed along with the movement of the first positioning block (13), and the first slide way (12) is installed on the lower die of a clip blanking and punching die (6) and is parallel to the conveying chain (4);
the material conveying unit is arranged between the material punching and shearing unit and the material punching unit and comprises a second speed reducer mechanism (3) and a conveying chain (4); the second speed reducer mechanism (3) consists of a motor and a speed reducer, the motor drives the speed reducer to rotate, the speed reducer drives the conveying chain (4), and the conveying chain (4) conveys the flat steel from the material punching and shearing unit to the material punching and shearing unit; the second speed reducer mechanism (3) is faster than the first speed reducer mechanism (1);
the material punching and shearing unit comprises a first punch (5) and a clip blanking and punching die (6), wherein the clip blanking and punching die (6) consists of an upper die, a lower die and a bottom die, the bottom die is arranged on the working table surface of the first punch (5), and the lower die is arranged on the bottom die;
the material stamping unit comprises a second punch (7), a clip forming die (8), a positioning cylinder (9), a second slide way (14), a second positioning block (15), a proximity switch S2 and a discharging mechanism; the clamp forming die (8) consists of an upper die, a lower die and a bottom die, the bottom die is arranged on the working platform surface of the second punch (7), and the lower die is arranged on the bottom die; wherein the discharging mechanism consists of a material pushing cylinder (10) and a material pushing plate (11); two lead rods arranged on a base provided with the material pushing cylinder (10) and cylinder rods of the material pushing cylinder (10) form a triangle, the material pushing plate (11) is fixed, the material pushing plate (11) is ensured to be stable, and resistance does not deform and displace when pushing materials, so that the flat steel does not turn over; the material pushing cylinder (10) is arranged on the working table surface of the second punch (7);
one end of the conveying chain (4) extends into the clip blanking and punching die (6) and is aligned with the center of the lower die of the clip blanking and punching die (6), and the upper surface of the chain is lower than the upper surface of the lower die of the clip blanking and punching die (6); the other end of the chain extends into the clip forming die (8) and is parallel to the lower die of the clip forming die (8), and the upper surface of the chain and the upper surface of the lower die of the clip lower forming die (8) are on the same horizontal plane;
a clip blanking and punching die (6) is arranged on the first punch (5), and a first slideway (12) is arranged on the lower die of the clip blanking and punching die (6); install checkpost forming die (8) on second punch press (7), install proximity switch S2, location cylinder (9), second slide (14), second locating piece (15) on the die block of checkpost forming die (8), proximity switch S2 establishes the next door at conveying chain (4), detects whether there is the material on the conveying chain.
2. The automatic production line for manufacturing the U-shaped steel plate spring clips as claimed in claim 1, wherein the positioning cylinder (9), the second slideway (14) and the second positioning block (15) are arranged on a working table of the second punch press (7) or on a bottom die of the clip forming die (8).
3. The automatic production line for manufacturing the U-shaped clamp of the steel plate spring as claimed in claim 1, wherein centers of the positioning cylinder (9), the second slide way (14) and the second positioning block (15) are aligned on the same line, and a line connecting centers of the positioning cylinder (9) and the second positioning block (15) is parallel to a lower die of the clamp forming die (9).
4. The automatic production line for manufacturing the U-shaped steel plate spring clip as claimed in claim 1, wherein the movement direction of the pushing cylinder (10) is perpendicular to the conveying direction of the flat steel; the moving direction of the positioning cylinder (9) is consistent with the conveying direction of the flat steel.
5. The automatic production line for manufacturing the U-shaped clips of the leaf springs as claimed in claim 1, wherein the conveying chain (4) is a double-row roller chain.
6. The automatic production line for manufacturing the U-shaped steel plate spring clip as claimed in claim 1, wherein the roller mechanism (2) comprises an upper roller and a lower roller, wherein the lower roller is fixed, the upper roller is movable, the gap between the upper roller and the lower roller can be adjusted through flat steels with different thicknesses, and the lower roller is provided with a chain wheel which is connected with the speed reducer of the first speed reducer mechanism (1) through a chain.
7. An automatic production process for manufacturing a U-shaped clamp of a steel plate spring is characterized in that a first speed reducer mechanism (1) works to drive a roll aligning mechanism (2) to rotate, flat steel is manually fed into a roll opening of the roll aligning mechanism (2) along the length direction, the roll aligning mechanism (2) drives the flat steel to move along the length direction, when the flat steel reaches a proximity switch S1, the proximity switch S1 sends a signal, the first speed reducer mechanism (1) stops working, the roll aligning mechanism (2) does not rotate any more, the flat steel does not move any more, meanwhile, a first punch (5) acts once after receiving the signal, punching and shearing are realized, the flat steel falls on a conveying chain (4), and the blanking process is completed;
after the first punch (5) acts for once resetting, the second speed reducer mechanism (3) works after receiving a signal to drive the conveying chain (4) to rotate, the conveying chain (4) drives the flat steel to be conveyed from the material punching and shearing unit to the material punching unit, and the material conveying is finished;
when the flat steel reaches the proximity switch S2, the proximity switch S2 sends a signal, the second speed reducer mechanism (3) stops working, and the flat steel does not move any more; the pushing cylinder (10) receives signal action to push the flat steel to a lower die of the clip forming die (8), a stop block is arranged on the lower die of the clip forming die (8), the flat steel is stopped at a final position, the positioning cylinder (9) acts to push the flat steel to return after contacting with a second positioning block (15), the pushing cylinder (10) returns, and the flat steel stays at the center of the clip forming die (8); the second punch (7) acts once to complete the stamping of the flat steel; after the second punch (7) is reset, the material pushing cylinder (10) receives a signal, the action is performed once again, the bent and formed clip is detached from the upper die of the clip forming die (8), and the first clip is manufactured; after the material pushing cylinder (10) returns, the first speed reducer transmission mechanism (1) receives signals to work, and the second clamp starts to be manufactured, and the process is circulated in sequence.
8. An automated process for manufacturing U-shaped clips of leaf springs according to claim 7, wherein the first positioning block (12) of the feeding positioning mechanism is adjusted to make the distance from the proximity switch S1 to the center of the lower die of the clip blanking punch die (6) equal to the required flat steel blanking length.
9. The automated production process for manufacturing a U-shaped clip of a steel plate spring as claimed in claim 7, wherein the second positioning block (15) of the material stamping unit is adjusted according to the required blanking length of the flat steel, so that the distance from the second positioning block (15) to the center of the lower die of the clip forming die (8) is equal to half of the required blanking length of the flat steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011394593.6A CN112588955A (en) | 2020-12-03 | 2020-12-03 | Automatic production line for manufacturing U-shaped clips of leaf springs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011394593.6A CN112588955A (en) | 2020-12-03 | 2020-12-03 | Automatic production line for manufacturing U-shaped clips of leaf springs |
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| Publication Number | Publication Date |
|---|---|
| CN112588955A true CN112588955A (en) | 2021-04-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011394593.6A Pending CN112588955A (en) | 2020-12-03 | 2020-12-03 | Automatic production line for manufacturing U-shaped clips of leaf springs |
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| CN (1) | CN112588955A (en) |
Citations (7)
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|---|---|---|---|---|
| SU1819712A1 (en) * | 1991-02-25 | 1993-06-07 | Pk T Exi Mash | Method and consecutive action stamp for production of u-shaped pieces from metal strap |
| US20090108522A1 (en) * | 2007-10-31 | 2009-04-30 | Sankyo Seisakusho Co. | Sheet material feeding apparatus |
| CN110711839A (en) * | 2019-11-19 | 2020-01-21 | 安徽工业大学 | Multi-station stamping progressive die for automatic production of bent chain plates |
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| CN111097841A (en) * | 2020-01-06 | 2020-05-05 | 福建鑫成裕机器人科技有限公司 | Stamping and bending production line and production process for bent plate |
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| CN111974892A (en) * | 2019-05-24 | 2020-11-24 | 天津华舜汽配制造集团有限公司 | Automatic feeding device of punching machine tool |
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2020
- 2020-12-03 CN CN202011394593.6A patent/CN112588955A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1819712A1 (en) * | 1991-02-25 | 1993-06-07 | Pk T Exi Mash | Method and consecutive action stamp for production of u-shaped pieces from metal strap |
| US20090108522A1 (en) * | 2007-10-31 | 2009-04-30 | Sankyo Seisakusho Co. | Sheet material feeding apparatus |
| CN111974892A (en) * | 2019-05-24 | 2020-11-24 | 天津华舜汽配制造集团有限公司 | Automatic feeding device of punching machine tool |
| CN210847843U (en) * | 2019-09-09 | 2020-06-26 | 浙江民泰钢瓶有限公司 | Automatic feeding device for punching machine |
| CN110711839A (en) * | 2019-11-19 | 2020-01-21 | 安徽工业大学 | Multi-station stamping progressive die for automatic production of bent chain plates |
| CN110871228A (en) * | 2019-12-13 | 2020-03-10 | 银川特种轴承有限公司 | Stamping device for railway freight car bearing |
| CN111097841A (en) * | 2020-01-06 | 2020-05-05 | 福建鑫成裕机器人科技有限公司 | Stamping and bending production line and production process for bent plate |
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| 徐贤丰等: "钢板弹簧卡子生产线自动化改进", 《新疆钢铁》 * |
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Application publication date: 20210402 |