CN111604426A - Automatic replacing device for combined punching machine die - Google Patents
Automatic replacing device for combined punching machine die Download PDFInfo
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- CN111604426A CN111604426A CN202010548163.9A CN202010548163A CN111604426A CN 111604426 A CN111604426 A CN 111604426A CN 202010548163 A CN202010548163 A CN 202010548163A CN 111604426 A CN111604426 A CN 111604426A
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- Prior art keywords
- die
- punching machine
- frame
- guide rail
- tray
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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
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/14—Particular arrangements for handling and holding in place complete dies
Abstract
The invention discloses an automatic die replacing device of a combined punching machine, which comprises the combined punching machine, wherein the combined punching machine comprises an outer frame and an inner frame, the inner frame is arranged inside the outer frame, the combined punching machine also comprises a die changing device and a telescopic device, the telescopic device is connected with the die changing device and matched with the die changing device to form an extending position and a retracting position, a die shifting fork, a linear module and a first driving device are arranged on the inner frame, the first driving device respectively controls the die shifting fork and the linear module to move, the telescopic device is matched with the die shifting fork or the linear module when being at the extending position, and the telescopic device is matched with the die changing device when being at the retracting position. The matching of the parts and the components enables the process of replacing the stamping die to be more intelligent, the automation of the processes of warehouse-out, warehouse-in, transfer and positioning of the stamping die is realized, the personal safety of a user is protected, and the die replacing device is adopted to replace a die warehouse in a traditional form, so that the stamping die has the advantages of small overall volume, compact structure and high space utilization rate.
Description
Technical Field
The invention relates to a device for replacing a die of a punch press, in particular to an automatic replacing device for a die of a combined punch press.
Background
In the press working industry, replacement of the press die is an indispensable operation when changing the size of the product. In the combined punch press, the existing methods for replacing the mold mainly include two methods, one is to carry and replace the mold completely by manpower, and the other is to carry and replace the mold by a mechanical auxiliary manual mode. The two methods need more manpower in the processes of delivery, storage, transfer and positioning of the die, have larger potential safety hazard and cause waste of time and labor cost, so improvement is needed.
Disclosure of Invention
The invention provides a novel automatic die replacing device for a combined punching machine, aiming at the defects that the combined punching machine in the prior art needs more labor participation in the transferring and positioning processes of dies, has larger potential safety hazards, causes waste of time and labor cost and the like.
In order to solve the technical problems, the invention is realized by the following technical scheme:
the utility model provides an automatic change device of combination punch press mould, includes the combination punch press, the combination punch press includes outer frame, interior rack-mount is in inside the outer frame, still includes retooling device, telescoping device, the telescoping device with retooling device is connected and with retooling device cooperation forms the extended position and withdraws the position, be equipped with on the interior frame and move mould shift fork, sharp module, a drive arrangement controls respectively move mould shift fork and sharp module and remove, the telescoping device be in under the extended position with move mould shift fork or sharp module cooperate, the telescoping device be in under the retracted position with retooling device cooperatees.
The die changing device is used for changing and storing stamping dies, has the function of a die warehouse, ensures that the stamping dies are stored orderly, omits the manual steps of the dies in the processes of warehouse-out and warehouse-in, and the telescopic device is used for conveying the stamping dies between the inner rack and the die changing device, simplifies the manual steps of the dies in the process of transferring, and under the extended position, the die-moving shifting fork and the linear module can respectively complete the steps of positioning and transferring the stamping dies on the inner rack under the driving of the first driving device, thereby simplifying the manual steps of the dies in the positioning process, the invention has more intelligent process of changing the stamping dies by matching the components and the components, realizes the automation of the processes of warehouse-out, warehouse-in, transferring and positioning of the stamping dies, thereby eliminating potential safety hazards and protecting the personal safety of users, and adopts the die changing device to replace the die warehouse in the traditional form, the invention has the advantages of small integral volume, compact structure and high space utilization rate.
Preferably, the automatic die replacing device for the combined punching machine comprises a die replacing device frame, an annular rail, a tray moving mechanism, a tray transmission mechanism and a driving motor, wherein the annular rail is arranged above the die replacing device frame, the tray moving mechanism is connected with the annular rail in a sliding manner, the driving motor is positioned in the die replacing device frame and drives the tray transmission mechanism, and the tray transmission mechanism is matched with the tray moving mechanism.
The die changing device frame is used for fixedly mounting the annular rail, the driving motor and the tray transmission mechanism, a better fixing effect is achieved, the tray moving mechanism is connected with the annular rail in a sliding mode, the stamping die is driven by the tray transmission mechanism to circulate on the annular rail along with the tray moving mechanism, the function of automatically changing the die is achieved, and the effect that the stamping die changing process can be carried out orderly is achieved.
Preferably, the automatic replacement device for the combined punch die comprises a tray transmission mechanism and at least 2 synchronous pulleys, wherein the synchronous pulleys are connected to the frame of the die replacement device and located at the centers of circular rings at two ends of the circular rail, and the synchronous belts are arranged on the synchronous pulleys and connected with the tray transmission mechanism.
Through synchronous pulley, hold-in range drive tray moving mechanism to set up 2 synchronous pulleys and be used for reinforcing power, no matter the tray moving mechanism is in arbitrary position on the endless track can both stably transport stamping die, better assurance die changing device can the steady operation.
Preferably, the automatic replacement device for the die of the combined punching machine comprises a die tray, a rail system sliding seat and a rail system bearing, wherein the rail system bearing is connected with an annular rail in a sliding manner, the rail system sliding seat is arranged above the rail system bearing, and the die tray is arranged above the rail system sliding seat.
The mould tray is used for bearing the stamping die, and the following tray moving mechanism that makes the stamping die can be stable removes, and the track system bearing is used for connecting the circular orbit, can reduce the slip friction power between tray moving mechanism and the circular orbit, makes the tray moving mechanism motion process more level and smooth, and the track system slide is used for connecting track system bearing and track system slide, plays the effect that makes the transmission more stable.
Preferably, the automatic change device of combination punching machine mould, the telescoping device include guide rail link, telescopic frame, telescopic boom, second drive arrangement, stop gear, telescopic frame with retooling device connects, telescopic boom sliding connection is on telescopic frame, be equipped with the rack on the telescopic boom, second drive arrangement passes through the rack with telescopic boom cooperatees, the guide rail link sets up on the telescopic boom, be equipped with the movable guide on the guide rail link, the circular orbit is connected at the movable guide both ends.
The telescopic support frame plays a supporting role, the telescopic device is supported to stretch out and retract on the die changing device, the telescopic arm and the second driving device are matched with each other to enable the telescopic device to be capable of converting between a stretching position and a retracting position, the guide rail connecting frame is used for being connected with the annular rail, the stamping die moves to the guide rail connecting frame from the annular rail and then moves along with the telescopic device, when the stamping die is located on the telescopic device, the stamping die can be limited to be located at a fixed position by the aid of the limiting mechanism, the stamping die is prevented from being separated due to movement of the telescopic device, and die safety and personal safety are better guaranteed. The parts are mutually matched, so that the position of the stamping die is more accurate in the replacement process, and the time for manual correction is saved.
Preferably, the automatic replacement device for the combined punching machine die comprises a limiting connecting frame, a connecting strip, a limiting column, an elastic part and a roller, the number of the limiting connecting frames is 2, the limiting connecting frames are respectively connected with the two ends of the guide rail connecting frame in a sliding way, the connecting strip is positioned below the guide rail connecting frame and connected with the limiting connecting frames positioned at the two ends of the guide rail connecting frame, the roller is arranged on the outer side of the limiting connecting frame, the limiting column is arranged on the upper surface of the connecting strip and is matched with the guide rail connecting frame to form a restraining position and a free position, the elastic piece is arranged on the lower surface of the connecting strip, the elastic piece is in a contraction shape under the free position, the limiting column is located on the lower surface of the guide rail connecting frame, the elastic piece is in an extending shape under the restraint position, and the limiting column penetrates through the guide rail connecting frame and is located on the upper surface of the guide rail connecting frame.
Set up two spacing link difference sliding connection and just connect at guide rail link both ends and through the connecting strip, make spacing post on the elastic component along with spacing link synchronous motion when the elastic component is flexible, thereby form restraint position and free position and realize fixed stamping die's effect, further guarantee telescoping device operation in-process stamping die's stability, through setting up the gyro wheel, make the gyro wheel take place to contradict with the circular orbit under withdrawing the position, thereby compress the elastic component, realize stop gear restraint position and free position's conversion.
Preferably, in the automatic replacement device for a combined punch die, a lug is arranged on the synchronous belt, and the tray moving mechanism is matched with the lug.
The lug makes the tray moving mechanism be connected more stably with the hold-in range in the motion process, can play better transmission.
Preferably, in the automatic replacement device for the combined punch die, the number of the rollers is 2, and the rollers are respectively connected to the outer sides of the limiting connecting frames.
The number of the rollers is set to be 2, so that the stability of the limiting mechanism in the conversion process of the constraint position and the free position can be improved.
Preferably, in the automatic replacement device for a combined punch die, the elastic members are springs and are more than 1 in number, and the elastic member arrays are respectively arranged on the lower surfaces of the connecting strips.
By increasing the number of springs, the stability of the limiting mechanism in the conversion process of the restraining position and the free position is improved.
Preferably, in the automatic replacement device for a combined punch die described above, the first driving device and the second driving device are both servo motors.
The servo motor has higher precision, thereby ensuring high-precision positioning in the moving process of the die changing device and high-precision positioning during die changing, and workers can install and fix the die changing device without carrying out excessive positioning adjustment after the die is changed, thereby greatly reducing the workload of the workers.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged view of a portion A of FIG. 1;
FIG. 3 is a schematic top view of the mold changing device and the telescoping device of the present invention;
FIG. 4 is a partial enlarged view of portion B of FIG. 3;
FIG. 5 is a schematic side view of the mold changing device and the telescoping device of the present invention;
fig. 6 is a partially enlarged view of a portion C in fig. 5.
Detailed Description
The invention will be described in further detail below with reference to the accompanying figures 1-6 and the detailed description, but they are not intended to limit the invention:
example 1
The utility model provides an automatic change device of combination punching machine mould, includes combination punching machine 1, combination punching machine 1 includes outer frame 11, interior frame 12 is installed inside outer frame 11, still includes retooling device 2, telescoping device 3 with retooling device 2 connect and with retooling device 2 cooperation forms the extended position and withdraws the position, be equipped with on the interior frame 12 and move mould shift fork 122, sharp module 121, a drive arrangement 123 controls respectively move mould shift fork 122 and sharp module 121 remove, telescoping device 3 under the extended position with move mould shift fork 122 or sharp module 121 cooperate, telescoping device 3 under the receipts return with retooling device 2 cooperatees.
The method comprises the following steps when replacing the stamping die: firstly, starting the telescopic device 3 and moving the telescopic device to an extending position, and then starting the first driving device 123 and driving the mold moving fork 122 and the linear module 121 to move the stamping mold on the inner frame 12 to the telescopic device 3; secondly, after the die-moving shifting fork 122 and the linear die set 121 complete working, the telescopic device 3 moves to a withdrawing position, and the die changing device 2 changes a stamping die; thirdly, after the die change of the die changing device 2 is completed, the telescoping device 3 drives the changed stamping die to move to the extending position, at the moment, the first driving device 123 is started and drives the die moving fork 122 and the linear module 121 to move the stamping die on the telescoping device 3 to the inner frame 12, and at the moment, the die changing step is completed.
Preferably, the mold changing device 2 includes a mold changing device frame 21, an annular rail 22, a tray moving mechanism 23, a tray transmission mechanism 24, and a driving motor 25, the annular rail 22 is disposed above the mold changing device frame 21, the tray moving mechanism 23 is slidably connected to the annular rail 22, the driving motor 25 is disposed in the mold changing device frame 21 and drives the tray transmission mechanism 24, and the tray transmission mechanism 24 is matched with the tray moving mechanism 23.
Preferably, the tray transmission mechanism 24 includes at least 2 synchronous pulleys 243 and a synchronous belt 241, the synchronous pulleys 243 are connected to the mold changing device frame 21 and located at the centers of the circular rings at the two ends of the circular rail 22, and the synchronous belt 241 is disposed on the synchronous pulleys 243 and connected to the tray transmission mechanism 24.
Preferably, the tray moving mechanism 23 includes a mold tray 231, a rail system slide 232, and a rail system bearing 233, the rail system bearing 233 is slidably connected to the annular rail 22, the rail system slide 232 is disposed above the rail system bearing 233, and the mold tray 231 is disposed above the rail system slide 232.
Preferably, the telescopic device 3 includes a guide rail connecting frame 34, a telescopic support frame 31, a telescopic arm 32, a second driving device 33 and a limiting mechanism 35, the telescopic support frame 31 is connected with the mold changing device 2, the telescopic arm 32 is slidably connected to the telescopic support frame 31, a rack 321 is arranged on the telescopic arm 32, the second driving device 33 is matched with the telescopic arm 32 through the rack 321, the guide rail connecting frame 34 is arranged on the telescopic arm 32, a movable guide rail 341 is arranged on the guide rail connecting frame 34, and the two ends of the movable guide rail 341 are connected with the annular rail 22.
Preferably, the limiting mechanism 35 comprises a limiting connecting frame 351, a connecting bar 353, a limiting column 354, an elastic member 355 and a roller 352, the number of the limit connecting frames 351 is 2, the limit connecting frames 351 are respectively connected with two ends of the guide rail connecting frame 34 in a sliding way, the connecting bar 353 is positioned below the guide rail connecting frame 34 and connected with the limit connecting frames 351 positioned at the two ends of the guide rail connecting frame 34, the roller 352 is disposed outside the position-limiting connecting frame 351, the position-limiting column 354 is disposed on the upper surface of the connecting bar 353 and is matched with the guide rail connecting frame 34 to form a constrained position and a free position, the elastic member 355 is disposed on the lower surface of the connecting bar 353, and the elastic member 355 is contracted in the free position, the position-limiting post 354 is located on the lower surface of the rail connecting frame 34, the elastic member 355 is in an extended shape in the restraining position, the limiting post 354 penetrates through the guide rail connecting frame 34 and is located on the upper surface of the guide rail connecting frame 34.
Preferably, the timing belt 241 is provided with a lug 242, and the tray moving mechanism 23 is engaged with the lug 242.
Preferably, the number of the rollers 352 is 2, and the rollers are respectively connected to the outer sides of the limit connecting frames 351.
Preferably, the elastic members 355 are springs and have a number greater than 1, and the elastic members 355 are arranged in an array on the lower surface of the connecting bar 353, respectively.
Preferably, the first driving device 123 and the second driving device 33 are both servo motors.
More specifically, a die changing step: in the first step, the second driving device 33 is first started, the second driving device 33 rotates and then cooperates with the rack 321 to drive the telescopic arm 32 to extend to the extended position, at this time, the second driving device 33 stops operating, and the telescopic arm 32 remains stationary.
In the second step, when the telescopic arm 32 is in the extended position, the first driving device 123 is activated, and the first driving device 123 controls the mold-moving fork 122 and the linear module 121 to move and move the stamping mold on the inner frame 12 to the mold tray 231.
Thirdly, after the stamping die moves to the die tray 231, the second driving device 33 controls the telescopic arm 32 to retract, when the telescopic arm 32 is to be located at the retraction position, the roller 352 is abutted against the annular rail 22 and is subjected to pressure, the roller 352 transmits the pressure to the elastic member 355 through the limiting connecting frame 351 and the connecting strip 353, the elastic member 355 is subjected to pressure and is compressed in the retraction process, at this time, the limiting column 354 gradually descends to the free position, the telescopic arm 32 moves to the retraction position, and the guide rail connecting frame 34 is connected with the annular rail 22.
Fourthly, the synchronous belt wheel 243 rotates to drive the synchronous belt 241, the lug 242 on the synchronous belt 241 cooperates with the tray moving mechanism 23 to drive the tray moving mechanism 23 to move on the circular track 22, and when the required stamping die moves to the guide rail connecting frame 34 along the circular track 22, the synchronous belt wheel 243 stops running.
Fifthly, the second driving device 33 controls the telescopic arm 32 to extend, the contact between the roller 352 and the circular track 22 disappears, the elastic member 355 pushes the connecting bar 353 to move upwards to the restraining position, and at the moment, the limiting column 354 penetrates through the guide rail connecting frame 34 and is located on the upper surface of the guide rail connecting frame 34 to limit the stamping die located on the guide rail connecting frame 34.
Sixthly, when the expansion device 3 extends out to the extending position with the replaced stamping die, the first driving device 123 starts and controls the die-moving fork 122 and the linear module 121 to move the stamping die on the die tray 231 to the inner frame 12.
And seventhly, after the stamping die is replaced, the telescopic device 3 moves to a retracting position, and die replacement is completed.
In summary, the above-mentioned embodiments are only preferred embodiments of the present invention, and all equivalent changes and modifications made within the scope of the claims of the present invention should be covered by the present invention.
Claims (10)
1. The utility model provides a combination punching machine mould automatic exchange device, includes combination punching machine (1), combination punching machine (1) includes outer frame (11), interior frame (12) are installed inside outer frame (11), its characterized in that: still include retooling device (2), telescoping device (3) with retooling device (2) connect and with retooling device (2) cooperation forms the extended position and withdraws the position, be equipped with on interior frame (12) and move mould shift fork (122), sharp module (121), first drive arrangement (123) control respectively move mould shift fork (122) and sharp module (121) remove, telescoping device (3) be in under the extended position with move mould shift fork (122) or sharp module (121) cooperate, telescoping device (3) be in under the receipts return position with retooling device (2) cooperate.
2. The automatic die replacing device for the combined punching machine according to claim 1, wherein: retooling device (2) are including retooling device frame (21), circular orbit (22), tray moving mechanism (23), tray drive mechanism (24), driving motor (25), circular orbit (22) are located retooling device frame (21) top, tray moving mechanism (23) with circular orbit (22) sliding connection, driving motor (25) are located in retooling device frame (21) and drive tray drive mechanism (24), tray drive mechanism (24) with tray moving mechanism (23) cooperate.
3. The automatic die replacing device for the combined punching machine according to claim 2, wherein: the tray transmission mechanism (24) comprises synchronous belt wheels (243) and synchronous belts (241), the number of the synchronous belt wheels (243) is at least 2, the synchronous belt wheels (243) are connected to the die change device rack (21) and located at the centers of circular rings at two ends of the annular track (22), and the synchronous belts (241) are arranged on the synchronous belt wheels (243) and connected with the tray transmission mechanism (24).
4. The automatic die replacing device for the combined punching machine according to claim 2, wherein: tray moving mechanism (23) include mould tray (231), rail system slide (232), rail system bearing (233) and annular rail (22) sliding connection, rail system slide (232) are located rail system bearing (233) top, mould tray (231) are located rail system slide (232) top.
5. The automatic die replacing device for the combined punching machine according to claim 2, wherein: telescoping device (3) include guide rail link (34), telescopic support frame (31), flexible arm (32), second drive arrangement (33), stop gear (35), telescopic support frame (31) with retooling device (2) are connected, flexible arm (32) sliding connection is on telescopic support frame (31), be equipped with rack (321) on flexible arm (32), second drive arrangement (33) are passed through rack (321) with flexible arm (32) cooperate, guide rail link (34) set up on flexible arm (32), be equipped with on guide rail link (34) and remove guide rail (341), circular orbit (22) are connected at removal guide rail (341) both ends.
6. The automatic die replacing device for the combined punching machine according to claim 5, wherein: the limiting mechanism (35) comprises limiting connecting frames (351), connecting strips (353), limiting columns (354), elastic pieces (355) and rollers (352), the number of the limiting connecting frames (351) is 2, the limiting connecting frames (351) are respectively connected to two ends of the guide rail connecting frame (34) in a sliding mode, the connecting strips (353) are located below the guide rail connecting frame (34) and connected with the limiting connecting frames (351) located at two ends of the guide rail connecting frame (34), the rollers (352) are arranged on the outer sides of the limiting connecting frames (351), the limiting columns (354) are arranged on the upper surfaces of the connecting strips (353) and matched with the guide rail connecting frame (34) to form a restraining position and a free position, the elastic pieces (355) are arranged on the lower surfaces of the connecting strips (353), the elastic pieces (355) are in a contracting mode under the free position, and the limiting columns (354) are located on the lower surface of the guide rail connecting frame (34), the elastic piece (355) is in an extended state under the constraint position, and the limiting column (354) penetrates through the guide rail connecting frame (34) and is located on the upper surface of the guide rail connecting frame (34).
7. The automatic die replacing device for the combined punching machine according to claim 3, wherein: the synchronous belt (241) is provided with a lug (242), and the tray moving mechanism (23) is matched with the lug (242).
8. The automatic die replacing device for the combined punching machine according to claim 6, wherein: the number of the rollers (352) is 2, and the rollers are respectively connected to the outer side of the limiting connecting frame (351).
9. The automatic die replacing device for the combined punching machine according to claim 6, wherein: the elastic members (355) are springs, the number of the elastic members is more than 1, and the array of the elastic members (355) are respectively arranged on the lower surface of the connecting strip (353).
10. The automatic die replacing device for the combined punching machine according to claim 5, wherein: the first driving device (123) and the second driving device (33) are both servo motors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010548163.9A CN111604426B (en) | 2020-06-16 | 2020-06-16 | Automatic replacing device for combined punching machine die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010548163.9A CN111604426B (en) | 2020-06-16 | 2020-06-16 | Automatic replacing device for combined punching machine die |
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| Publication Number | Publication Date |
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| CN111604426A true CN111604426A (en) | 2020-09-01 |
| CN111604426B CN111604426B (en) | 2021-10-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010548163.9A Active CN111604426B (en) | 2020-06-16 | 2020-06-16 | Automatic replacing device for combined punching machine die |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1126456A (en) * | 1966-06-07 | 1968-09-05 | Fiat Spa | Workpiece feed and die change device |
| DE2839992A1 (en) * | 1978-09-14 | 1980-04-03 | Schuler Gmbh L | TOOL CHANGE DEVICE |
| CN201633155U (en) * | 2009-12-17 | 2010-11-17 | 必能信超声(上海)有限公司 | Device for quickly replacing mould |
| CN106040879A (en) * | 2016-07-15 | 2016-10-26 | 无锡明芳汽车部件工业有限公司 | Automatic die changing system for punching machine |
| CN207057453U (en) * | 2017-03-23 | 2018-03-02 | 青岛力磁电气股份有限公司 | Magnetic template component |
| CN109079037A (en) * | 2018-09-10 | 2018-12-25 | 广州德志金属制品有限公司 | A kind of device and its operating method for quick-replaceable edger |
| CN209631899U (en) * | 2019-02-02 | 2019-11-15 | 北京和田汽车改装有限公司 | Press machine |
| CN210475210U (en) * | 2019-09-12 | 2020-05-08 | 浙江金澳兰机床有限公司 | Die changing device for punch die |
-
2020
- 2020-06-16 CN CN202010548163.9A patent/CN111604426B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1126456A (en) * | 1966-06-07 | 1968-09-05 | Fiat Spa | Workpiece feed and die change device |
| DE2839992A1 (en) * | 1978-09-14 | 1980-04-03 | Schuler Gmbh L | TOOL CHANGE DEVICE |
| CN201633155U (en) * | 2009-12-17 | 2010-11-17 | 必能信超声(上海)有限公司 | Device for quickly replacing mould |
| CN106040879A (en) * | 2016-07-15 | 2016-10-26 | 无锡明芳汽车部件工业有限公司 | Automatic die changing system for punching machine |
| CN207057453U (en) * | 2017-03-23 | 2018-03-02 | 青岛力磁电气股份有限公司 | Magnetic template component |
| CN109079037A (en) * | 2018-09-10 | 2018-12-25 | 广州德志金属制品有限公司 | A kind of device and its operating method for quick-replaceable edger |
| CN209631899U (en) * | 2019-02-02 | 2019-11-15 | 北京和田汽车改装有限公司 | Press machine |
| CN210475210U (en) * | 2019-09-12 | 2020-05-08 | 浙江金澳兰机床有限公司 | Die changing device for punch die |
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| CN111604426B (en) | 2021-10-26 |
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