CN113305191A - Environment-friendly hydraulic punching machine for sheet metal machining based on cooling circulation - Google Patents
Environment-friendly hydraulic punching machine for sheet metal machining based on cooling circulation Download PDFInfo
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- CN113305191A CN113305191A CN202110871165.6A CN202110871165A CN113305191A CN 113305191 A CN113305191 A CN 113305191A CN 202110871165 A CN202110871165 A CN 202110871165A CN 113305191 A CN113305191 A CN 113305191A
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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
- B21D19/00—Flanging or other edge treatment, e.g. of tubes
- B21D19/005—Edge deburring or smoothing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C51/00—Measuring, gauging, indicating, counting, or marking devices specially adapted for use in the production or manipulation of material in accordance with subclasses B21B - B21F
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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
- B21D37/16—Heating or cooling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/26—Programme control arrangements
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Punching Or Piercing (AREA)
Abstract
The invention discloses an environment-friendly hydraulic punching machine for sheet metal machining based on cooling circulation, which comprises a shell and is characterized in that: the environment-friendly hydraulic punching machine for metal plate machining based on cooling circulation comprises a punching system, wherein the punching system comprises a scanning module, a data transmission module, a data receiving module and an execution module, and a strengthening module is electrically connected between the pushing head and the burr processor; the device comprises a scanning module, a data transmission module, a data receiving module, a data transmission module and a data processing module, wherein the scanning module is electrically connected with the data transmission module, and the data receiving module is electrically connected with the data transmission module.
Description
Technical Field
The invention relates to the technical field of sheet metal machining, in particular to an environment-friendly hydraulic punch press for sheet metal machining based on cooling circulation.
Background
According to research, in the process of punching and cutting a metal plate, the circular waste metal plate after punching is stuck on a hole due to different internal structures of the metal plate, the circular waste metal plate needs to be stripped in an auxiliary mode, burrs at the edge of the hole need to be treated, otherwise, the surface quality is easily influenced, in the prior art, punches cannot be switched according to different metal plate materials, the punches are often easily damaged, the waste metal plate and the metal plate cannot be effectively stripped, the deburring effect is poor, and therefore the hydraulic punching machine for environment-friendly metal plate machining based on cooling circulation and capable of achieving good burr treatment effect and assisting in stripping of the metal plate is necessary.
Disclosure of Invention
The invention aims to provide an environment-friendly hydraulic press for sheet metal machining based on cooling circulation, which aims to solve the problems in the background technology.
In order to solve the technical problems, the invention provides the following technical scheme: environmental protection type hydraulic press for sheet metal working based on cooling cycle, including the casing, its characterized in that: the environment-friendly hydraulic punching machine for metal plate machining based on cooling circulation comprises a punching system, wherein the punching system comprises a scanning module, a data transmission module, a data receiving module and an execution module, and a strengthening module is electrically connected between the pushing head and the burr processor;
the scanning module is electrically connected with the data transmission module, the data receiving module is electrically connected with the execution module, the execution module is electrically connected with the punch, the push head and the burr processor respectively, the scanning module has an internal data function of scanning metal plates, the data transmission module can transmit data, the data receiving module can receive the transmitted data, the execution module can control the internal operation of the device, and the strengthening module can strengthen the power of the burr processor and has a timing function.
According to the technical scheme, the scanning module comprises the projection module, the analysis module and the data acquisition module, the projection module is electrically connected with the analysis module, the analysis module is electrically connected with the data acquisition module, the projection module can perform projection imaging on the scanned metal plate, the analysis module can analyze the internal components of the imaged metal plate, and the data acquisition module can acquire the analyzed data and transmit the data into the data transmission module.
According to the technical scheme, the data transmission module comprises a data summarizing module, a data packaging module and a data transmitting module, the data summarizing module is electrically connected with the data packaging module, the data summarizing module is electrically connected with the data acquisition module, the data packaging module is electrically connected with the data transmitting module, the data summarizing module summarizes data, the data packaging module packages the summarized data, and the data transmitting module transmits the packaged data into the data receiving module.
According to the technical scheme, the data receiving module comprises a data decompression module, a database module and a data input module, the data decompression module and the database module are respectively and electrically connected with the data transmitting module, the data input module is electrically connected with the data decompression module, the data decompression module receives and decompresses packed data, the database module inputs the packed data into the database, and the data input module inputs the decompressed data into the execution module.
According to the technical scheme, the execution module comprises a data calculation module, an instruction transmitting module and a control module, the data calculation module is electrically connected with the data input module, the instruction transmitting module is electrically connected with the data calculation module, the control module is electrically connected with the instruction transmitting module, the control module is electrically connected with the push head, the punch and the burr processor respectively, the data calculation module calculates received data to obtain a result, the instruction transmitting module is used for editing the calculation result into an instruction to be transmitted, and the control module can control the push head, the punch and the burr processor.
According to the technical scheme, the stamping system comprises the following operation steps:
s1, starting the hydraulic punch press, and operating the punching system;
s2, the scanning module starts to scan the metal plate on the conveyor belt, the internal projection module projects and images the metal plate, and the analysis module analyzes the material of the imaged metal plate;
s3, data acquisition is carried out on the data obtained by analysis through a data acquisition module, and then the acquired data are input into a data summarization module;
s4, the data summarization module summarizes the data and then packages the data through the packaging module, and the packaged data packet is transmitted out through the data transmitting module and enters the data receiving module;
s5, decompressing the transmitted data packet by the data decompressing module, entering the decompressed data into the data input module, and simultaneously collecting the packed data packet by the database module and entering the database;
s6, the data input module transmits the data to the execution module, the data calculation module in the execution module calculates the result and inputs the result into the instruction transmitting module;
s7, the instruction transmitting module edits the data into an instruction to be transmitted into the control module, and the control module controls the push head, the punch and the burr processor;
s8, performing power strengthening on the burr processor through a thrust control strengthening module of the pushing head;
s9, after completing the primary punching, repeating the steps S2 to S8.
According to the above technical solution, in the steps S2 to S7, the analysis module analyzes how much non-hard material in the metal plate is different, the hardness of the metal plate is also different,
(ii) a Wherein
As a single coefficient of thrust
Angle multiplied by thrust
The resulting overall thrust coefficient is a constant,
the hardness of the non-hard material is equal to that of the hard material,
for the thrust of the pushing head, the pushing force of the pushing head is increased when the hardness of the non-hard material is increased
The smaller.
According to the technical scheme, in the steps S2 to S7, after the sheet metal is punched, the burr amount at the punched position is different, the force required to be applied to the push head is different,
(ii) a Wherein
Medium single burr
Multiplied by the thrust required by conventional burrs
The thrust coefficient of the resulting burr is a constant,
for burr volume size, when the burr is more, the thrust of pushing away the head then is big more to it is stronger to drive the file power of file to the burr.
According to the technical scheme, in the step S8, the thrust of the push head driven by the sheet metal with lower hardness is larger, so that the power of the burr processor is changed through the strengthening module, and the calculation formula is as follows:
wherein
For scraping off the burr quantity
Total power of the burr processor and force to scrape off burrs
Multiplied by the angle at which the burr is scraped
The resulting coefficient of scraped-off burr is a constant,
is the direction of force
Multiplying the angular variation value when scraping burrs
The coefficient of the obtained same-direction burr scraping is constant,
for operating power of the burr processor, the material hardness is lower when the non-hard material is more, so that the more burr is scraped off, the more power the burr processor processes.
Compared with the prior art, the invention has the following beneficial effects: according to the invention, through the arrangement of the stamping system, the thrust on the sheet metal piece can be reduced aiming at the sheet metal with lower hardness, the damage to the device caused by the sheet metal piece being clamped on the punch due to overlarge thrust is avoided, and meanwhile, the thrust on the sheet metal piece is increased aiming at the difficulty in falling off of the sheet metal piece stamped by the sheet metal with higher hardness, so that the sheet metal piece can be fully stripped.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic diagram of the apparatus of the present invention;
FIG. 2 is a schematic flow diagram of the system of the present invention;
in the figure: 1. a housing; 2. hydraulic punching; 3. a conveyor belt; 4. a punch; 5. pushing the head; 6. filing; 7. a burr processor.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-2, the present invention provides the following technical solutions: the environment-friendly hydraulic punching machine for sheet metal machining based on cooling circulation comprises a shell 1, a hydraulic punching machine 2 is arranged inside the shell 1, a conveying belt 3 is connected to the bottom of the shell 1 in a sliding mode, a plurality of punches 4 are fixed to the bottom of the hydraulic punching machine 2, rotary tables are connected among the punches 4, a push head 5 is fixed below the conveying belt 3, a file 6 is embedded on the outer surface of the push head 5, burr processors 7 are arranged on two sides of the push head 5, the environment-friendly hydraulic punching machine for sheet metal machining based on cooling circulation comprises a punching system, the punching system comprises a scanning module, a data transmission module, a data receiving module and an execution module, and a strengthening module is electrically connected between the push head 5 and the burr processors 7;
the scanning module is electrically connected with the data transmission module, the data receiving module is electrically connected with the execution module, the execution module is respectively electrically connected with the punch 4, the push head 5 and the burr processor 7, the scanning module has an internal data function of scanning metal plates, the data transmission module can transmit data, the data receiving module can receive the transmitted data, the execution module can control the internal operation of the device, and the strengthening module can strengthen the power of the burr processor 7 and has a timing function.
The scanning module is including projection module, analysis module and data acquisition module, projection module and analysis module electricity are connected, analysis module and data acquisition module electricity are connected, projection module can carry out the projection formation of image to the panel beating after the scanning, analysis module can carry out the analysis to the inside composition of the panel beating of formation of image, data acquisition module can gather the data after the analysis and transmit to in the data transmission module.
The data transmission module comprises a data summarizing module, a data packaging module and a data transmitting module, the data summarizing module is electrically connected with the data packaging module, the data summarizing module is electrically connected with the data acquisition module, the data packaging module is electrically connected with the data transmitting module, the data summarizing module summarizes data, the data packaging module packages the summarized data, and the data transmitting module transmits the packaged data into the data receiving module.
The data receiving module comprises a data decompression module, a database module and a data input module, the data decompression module and the database module are respectively and electrically connected with the data transmitting module, the data input module is electrically connected with the data decompression module, the data decompression module receives and decompresses the packed data, the database module inputs the packed data into a database, and the data input module inputs the decompressed data into the execution module.
The execution module comprises a data calculation module, an instruction transmitting module and a control module, the data calculation module is electrically connected with the data input module, the instruction transmitting module is electrically connected with the data calculation module, the control module is electrically connected with the instruction transmitting module, the control module is respectively electrically connected with the push head 5, the punch 4 and the burr processor 7, the data calculation module calculates received data to obtain a result, the instruction transmitting module is used for editing the calculation result into an instruction to be transmitted, and the control module can control the push head 5, the punch 4 and the burr processor 7.
The stamping system comprises the following operation steps:
s1, starting the hydraulic punch 2, and operating a punching system;
s2, the scanning module starts to scan the metal plate on the conveyor belt 3, the internal projection module projects and images the metal plate, and the analysis module analyzes the material of the imaged metal plate;
s3, data acquisition is carried out on the data obtained by analysis through a data acquisition module, and then the acquired data are input into a data summarization module;
s4, the data summarization module summarizes the data and then packages the data through the packaging module, and the packaged data packet is transmitted out through the data transmitting module and enters the data receiving module;
s5, decompressing the transmitted data packet by the data decompressing module, entering the decompressed data into the data input module, and simultaneously collecting the packed data packet by the database module and entering the database;
s6, the data input module transmits the data to the execution module, the data calculation module in the execution module calculates the result and inputs the result into the instruction transmitting module;
s7, the instruction transmitting module edits the data into an instruction and transmits the instruction into the control module, and the control module controls the push head 5, the punch 4 and the burr processor 7;
s8, performing power strengthening on the burr processor 7 through a thrust control strengthening module of the push head 5;
s9, after completing the primary punching, repeating the steps S2 to S8.
In steps S2 to S7, the analysis module analyzes how much the non-hard material in the metal plate is different, the hardness of the metal plate is different,
(ii) a Wherein
As a single coefficient of thrust
Angle multiplied by thrust
The resulting overall thrust coefficient is a constant,
the hardness of the non-hard material is equal to that of the hard material,
for the magnitude of the pushing force of the pushing head 5, the pushing force of the pushing head 5 is increased when the hardness of the non-hard material is increased
The smaller the thrust to the sheet metal piece can be increaseed to the lower panel beating of hardness, and the sheet metal piece after making the lower panel beating of hardness punching press is lived by the adhesion and is difficult for droing and increaseing the thrust to it, makes the sheet metal piece can be fully peeled off, reduces thrust to the higher panel beating of hardness simultaneously, avoids pushing force too big to lead to the sheet metal piece card to lead to damaging the device on drift 4.
In steps S2 to S7, after the sheet metal is punched, the burr amount at the punched hole is different, the force required to be applied to the pushing head 5 is different,
(ii) a Wherein
Medium single burr
Multiplied by the thrust required by conventional burrs
The thrust coefficient of the resulting burr is a constant,
for the amount of burr, when the burr is more, the pushing force of the pushing head 5 is larger, thereby driving the file 6 to the burrThe stronger the file power, can be with more burr fully processed totally, avoid panel beating surface burr to remain, to the less dynamics that reduces file 6 of burr, prevent that the more influence panel beating precision of panel beating volume of filing away simultaneously.
In step S8, the thrust of the pusher 5 carried by the sheet metal with lower hardness is greater, so that the power of the burr processor 7 is changed by the strengthening module, and the calculation formula is:
wherein
For scraping off the burr quantity
The total power of the burr processor 7 and the force to scrape off burrs
Multiplied by the angle at which the burr is scraped
The resulting coefficient of scraped-off burr is a constant,
is the direction of force
Multiplying the angular variation value when scraping burrs
The coefficient of the obtained same-direction burr scraping is constant,
for burr treatment ware 7's operating power, when non-rigid material is more, the material hardness is lower, thereby the burr volume that makes striking off is more, the power that burr treatment ware 7 was handled is bigger, the burr volume that can strike off to harder sheet metal material is few and reduce burr treatment ware 7's operating power, reduce the energy consumption, and can prevent that the too high power from leading to burning out burr treatment ware 7, simultaneously to softer sheet metal material burr is many, thereby increase burr treatment ware 7 power, increase the processing speed to the burr, prevent that the burr from piling up the clean degree that influences the device in casing 1.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the 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. Environmental protection type sheet metal working is with fluid pressure type punch press based on cooling cycle, including casing (1), its characterized in that: the environment-friendly metal plate processing hydraulic punching machine based on cooling circulation comprises a punching system, wherein a hydraulic punching machine (2) is arranged in the shell (1), a conveying belt (3) is connected to the bottom of the shell (1) in a sliding mode, a plurality of punches (4) are fixed to the bottom of the hydraulic punching machine (2), rotary tables are connected among the punches (4), a push head (5) is fixed to the lower portion of the conveying belt (3), files (6) are inlaid on the outer surface of the push head (5), burr processors (7) are arranged on two sides of the push head (5), the environment-friendly metal plate processing hydraulic punching machine based on cooling circulation comprises a punching system, the punching system comprises a scanning module, a data transmission module, a data receiving module and an execution module, and a strengthening module is electrically connected between the push head (5) and the burr processors (7);
the utility model discloses a burr processor, including scanning module, data transmission module, scanning module, executive module, data transmission module, scanning module and data transmission module electricity are connected, data reception module and executive module electricity are connected, executive module is connected with drift (4), push head (5) and burr treater (7) electricity respectively, scanning module has the inside data function of scanning the panel beating, data transmission module can transmit data, data reception module can receive the data of transmission, executive module can the inside operation of controlling means, the power that burr treater (7) can be strengthened and timing function has to the intensive module.
2. The hydraulic press for machining environment-friendly sheet metal based on cooling circulation according to claim 1, characterized in that: the scanning module is including projection module, analysis module and data acquisition module, projection module and analysis module electricity are connected, analysis module and data acquisition module electricity are connected, projection module can carry out the projection formation of image to the panel beating after the scanning, analysis module can carry out the analysis to the inside composition of the panel beating of formation of image, data acquisition module can gather the data after the analysis and transmit to in the data transmission module.
3. The hydraulic press for machining environment-friendly sheet metal based on cooling circulation according to claim 2, characterized in that: the data transmission module comprises a data summarizing module, a data packaging module and a data transmitting module, the data summarizing module is electrically connected with the data packaging module, the data summarizing module is electrically connected with the data acquisition module, the data packaging module is electrically connected with the data transmitting module, the data summarizing module summarizes data, the data packaging module packages the summarized data, and the data transmitting module transmits the packaged data into the data receiving module.
4. The hydraulic press for machining environment-friendly sheet metal based on cooling circulation according to claim 3, characterized in that: the data receiving module comprises a data decompression module, a database module and a data input module, the data decompression module and the database module are respectively electrically connected with the data transmitting module, the data input module is electrically connected with the data decompression module, the data decompression module receives and decompresses packed data, the database module inputs the packed data into the database, and the data input module inputs the decompressed data into the execution module.
5. The hydraulic press for machining environment-friendly sheet metal based on cooling circulation according to claim 4, characterized in that: the execution module comprises a data calculation module, an instruction transmitting module and a control module, the data calculation module is electrically connected with the data input module, the instruction transmitting module is electrically connected with the data calculation module, the control module is electrically connected with the instruction transmitting module, the control module is electrically connected with the push head (5), the punch (4) and the burr processor (7) respectively, the data calculation module calculates received data to obtain a result, the instruction transmitting module is used for editing the calculation result into an instruction to be transmitted, and the control module can control the push head (5), the punch (4) and the burr processor (7).
6. The hydraulic press for machining environment-friendly sheet metal based on cooling circulation according to claim 5, characterized in that: the stamping system comprises the following operation steps:
s1, starting the hydraulic punch (2), and operating a punching system;
s2, the scanning module starts to scan the metal plate on the conveyor belt (3), the internal projection module projects and images the metal plate, and the analysis module analyzes the material of the imaged metal plate;
s3, data acquisition is carried out on the data obtained by analysis through a data acquisition module, and then the acquired data are input into a data summarization module;
s4, the data summarization module summarizes the data and then packages the data through the packaging module, and the packaged data packet is transmitted out through the data transmitting module and enters the data receiving module;
s5, decompressing the transmitted data packet by the data decompressing module, entering the decompressed data into the data input module, and simultaneously collecting the packed data packet by the database module and entering the database;
s6, the data input module transmits the data to the execution module, the data calculation module in the execution module calculates the result and inputs the result into the instruction transmitting module;
s7, the instruction transmitting module edits the data into an instruction and transmits the instruction into the control module, and the control module controls the push head (5), the punch (4) and the burr processor (7);
s8, performing power strengthening on the burr processor (7) through a thrust control strengthening module of the push head (5);
s9, after completing the primary punching, repeating the steps S2 to S8.
7. The hydraulic press for machining environment-friendly sheet metal based on cooling circulation according to claim 6, characterized in that: in the steps S2 to S7, the analysis module analyzes how much the non-hard material in the metal plate is different, the hardness of the metal plate is different,
(ii) a Which is a single thrust coefficient
Angle multiplied by thrust
The resulting overall thrust coefficient is a constant,
the hardness of the non-hard material is equal to that of the hard material,
the pushing force of the pushing head (5) is larger when the hardness of the non-hard material is larger
The smaller.
8. The hydraulic press for machining environment-friendly sheet metal based on cooling circulation according to claim 7, characterized in that: in the steps S2 to S7, after the sheet metal is punched, the burr amount at the punched position is different, the force required to be applied to the push head (5) is different,
(ii) a Wherein
Medium single burr
Multiplied by the thrust required by conventional burrs
The thrust coefficient of the resulting burr is a constant,
the more the burr is, the larger the pushing force of the pushing head (5) is, so that the stronger the filing force of the file (6) to the burr is driven.
9. The hydraulic press for machining environment-friendly sheet metal based on cooling circulation according to claim 8, characterized in that: in the step S8, the thrust of the pushing head (5) carried by the sheet metal with lower hardness is larger, so that the power of the burr processor (7) is changed through the strengthening module, and the calculation formula is as follows:
wherein
For scraping off the burr quantity
Is the total power of the burr processor (7) and the force for scraping off burrs
Multiplied by the angle at which the burr is scraped
The resulting coefficient of scraped-off burr is a constant,
is the direction of force
Multiplying the angular variation value when scraping burrs
The obtained burrs are scraped in the same directionThe coefficient is a constant which is a constant,
for the operating power of the burr processor (7), the material hardness is lower when the non-hard material is more, so that the more burr is scraped off, the more power the burr processor (7) processes.
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| CN206936990U (en) * | 2017-04-24 | 2018-01-30 | 泸州市胜科模具制造有限公司 | Burr polishing device for punching die |
| CN209811011U (en) * | 2018-12-25 | 2019-12-20 | 吴江索南精密机械有限公司 | Punching and blanking die with deburring function |
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2021
- 2021-07-30 CN CN202110871165.6A patent/CN113305191B/en active Active
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| JP2002066653A (en) * | 2000-08-30 | 2002-03-05 | Sanyo Seisakusho:Kk | Press working method and apparatus for metallic plate |
| JP2008302373A (en) * | 2007-06-06 | 2008-12-18 | Nec Corp | Punch press die |
| CN102847767A (en) * | 2012-09-17 | 2013-01-02 | 广西工学院 | Punching processing quality control method of large-scale covering component |
| CN105268830A (en) * | 2015-11-28 | 2016-01-27 | 孙新梅 | Multifunctional punching device of stamping part |
| CN105945139A (en) * | 2016-07-18 | 2016-09-21 | 昆山市力勋达精密机械有限公司 | Stamping process for sheet metal |
| CN206936990U (en) * | 2017-04-24 | 2018-01-30 | 泸州市胜科模具制造有限公司 | Burr polishing device for punching die |
| CN209811011U (en) * | 2018-12-25 | 2019-12-20 | 吴江索南精密机械有限公司 | Punching and blanking die with deburring function |
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| CN113305191B (en) | 2021-09-28 |
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Denomination of invention: Environmental friendly hydraulic punch for sheet metal processing based on cooling cycle Effective date of registration: 20220126 Granted publication date: 20210928 Pledgee: Nantong Jiangsu rural commercial bank Limited by Share Ltd. Pledgor: Jiangsu guanan electromechanical Co.,Ltd. Registration number: Y2022980001164 |
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Date of cancellation: 20230418 Granted publication date: 20210928 Pledgee: Nantong Jiangsu rural commercial bank Limited by Share Ltd. Pledgor: Jiangsu guanan electromechanical Co.,Ltd. Registration number: Y2022980001164 |