CN112650178A - Complex industrial detection device for data-driven modeling and model-free adaptive control - Google Patents

Complex industrial detection device for data-driven modeling and model-free adaptive control Download PDF

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Publication number
CN112650178A
CN112650178A CN202011535985.XA CN202011535985A CN112650178A CN 112650178 A CN112650178 A CN 112650178A CN 202011535985 A CN202011535985 A CN 202011535985A CN 112650178 A CN112650178 A CN 112650178A
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CN
China
Prior art keywords
box
installation
column
spacing
auxiliary
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Pending
Application number
CN202011535985.XA
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Chinese (zh)
Inventor
孙德杰
荣蓉
李欣
高胜男
李刚
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Hebei Normal University of Science and Technology
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Hebei Normal University of Science and Technology
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Application filed by Hebei Normal University of Science and Technology filed Critical Hebei Normal University of Science and Technology
Priority to CN202011535985.XA priority Critical patent/CN112650178A/en
Publication of CN112650178A publication Critical patent/CN112650178A/en
Pending legal-status Critical Current

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    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05BCONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00Programme-control systems
    • G05B19/02Programme-control systems electric
    • G05B19/418Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS], computer integrated manufacturing [CIM]
    • G05B19/41885Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS], computer integrated manufacturing [CIM] characterised by modeling, simulation of the manufacturing system
    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05BCONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00Program-control systems
    • G05B2219/30Nc systems
    • G05B2219/32Operator till task planning
    • G05B2219/32339Object oriented modeling, design, analysis, implementation, simulation language
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P90/00Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
    • Y02P90/02Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]

Abstract

The complex industrial detection device comprises a processing column and a base, wherein fasteners are symmetrically arranged on the base and used for fixing a device body, an installation seat is arranged at the upper part of the processing column, and a power device is arranged at the bottom of the installation seat. According to the invention, two ends of the device body are inserted into the fastener, the handle is rotated, the power shaft is rotated, the threaded sleeve is rotated, then the threaded moving rod drives the trapezoidal base to move, the two matching blocks are arranged in a matching manner with the trapezoidal base, the hinged inclined rod rotates downwards, so that the device body is clamped together through the two clamping heads, the rope is wound to drive the installation transverse column to move, then the angle of the installation inclined rod is changed, the installation sleeve block is driven to slide on the installation vertical column, and the movable contact piece and the static contact piece are in contact with the alarm to give an alarm, so that the completion of the fixation of the device body.

Description

Complex industrial detection device for data-driven modeling and model-free adaptive control
Technical Field
The invention relates to the technical field of data-driven modeling, in particular to a complex industrial detection device for data-driven modeling and model-free adaptive control.
Background
With the continuous development of the world economy, the development of complex industries is more and more emphasized, and the complex industries become the marks for measuring the comprehensive strength. With more and more industrial equipment put into use, how to ensure healthy and stable operation of the complex industries becomes a crucial issue. The complex industrial equipment runs in a severe environment, and the complex industrial equipment has a fault due to environmental changes, performance loss and the like, so that the difficulty is increased for equipment management work. When the complex industrial equipment breaks down, a large amount of manpower and material resources are consumed to diagnose and solve the faults, if the possible faults can be deduced through observing the performance and data of the complex industrial equipment in all aspects before the faults happen and early warning is carried out, preventive measures are taken to predict the faults of the complex industrial key components in the manufacturing process, so that the probability of the faults happening is reduced within the minimum range, and the reliability of the operation of the complex industrial equipment is ensured.
The detection device in the existing complex industry mostly adopts a punching mode to process and manufacture in the hole forming process, meanwhile, the fixing effect is poor, the device does not have a buffering and damping function, the device is easy to shift in the punching process, and the impact force is too large to cause damage when the device punches the holes, so that the processing and manufacturing efficiency is influenced.
Disclosure of Invention
The invention aims to provide a complex industrial detection device for data-driven modeling and model-free adaptive control, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a complex industrial detection device for data-driven modeling and model-free adaptive control comprises a processing column and a base, wherein fasteners are symmetrically arranged on the base and used for fixing a device body, an installation seat is arranged at the upper part of the processing column, and a power device is arranged at the bottom of the installation seat;
the power device comprises a power box, wherein an air cylinder is arranged on the inner top wall of the power box, the free end of the air cylinder is connected with a sliding block, the sliding block is connected with a sliding column, the sliding column penetrates through the power box and is connected with an electric drill bit, stabilizing sleeve columns are symmetrically arranged in the power box, stabilizing sleeves are slidably sleeved on the stabilizing sleeve columns and are connected with the sliding column together, a limiting buffer is arranged at the top ends of the stabilizing sleeve columns, and the limiting buffer is matched with the sliding block;
spacing buffer includes spacing baffle-box, and spacing baffle-box setting is on stable set post top, be equipped with spacing spreader bar in the spacing baffle-box, the cover is equipped with spacing crosspiece on the spacing spreader bar, and the articulated spacing down tube that is equipped with on the spacing crosspiece, common articulated being connected with between two spacing down tubes is with the piece, is connected through the assistor between with spacing baffle-box, and spacing crosspiece bottom is equipped with the stabilization post, connects through the coordinator between two stabilization posts.
Preferably, the binding includes the fastening box, and the rotation is equipped with the thread bush in the fastening box, and threaded connection has the screw to move the pole in the thread bush, and the screw moves the pole and is connected with trapezoidal seat, and the thread bush is connected with the power shaft, and the power shaft passes the fastening box and is connected with the handle, be equipped with the wiring on the power shaft, the wiring is connected with the erector through the reel, articulated in the fastening box have articulated piece, articulated piece and articulated down tube hinge set up, and articulated down tube lower part is equipped with clamping head and counterpoint piece, and two counterpoint pieces set up with trapezoidal seat cooperation, two clamping head clamping device bodies jointly.
Preferably, the fastening box is connected with the hinged diagonal rod through a fastening spring.
Preferably, the installer comprises an installation box, an installation vertical post is arranged in the installation box, an installation sleeve block is sleeved on the installation vertical post in a sliding mode and is hinged to the installation inclined rod, the installation inclined rod is hinged to the installation transverse post and is connected with the installation transverse post, the installation transverse post is connected with the winding rope, a movable contact piece is arranged on the side portion of the installation sleeve block, a static contact piece is arranged on the inner top wall of the installation box, and the movable contact piece and the static contact piece are in contact with each other and used for alarming of the alarm.
Preferably, the assistor comprises an auxiliary box, an auxiliary sliding block is arranged in the auxiliary box in a sliding mode, an auxiliary sliding column is arranged on the auxiliary sliding block, and the auxiliary sliding column penetrates through the auxiliary box and is connected with the same block.
Preferably, the auxiliary slider is connected with the inner bottom wall of the auxiliary box through an auxiliary spring.
Preferably, the coordinators comprise coordination boxes, coordination sliding blocks are slidably arranged between the coordination boxes, the two coordination sliding blocks are respectively provided with a coordination sliding column, the coordination sliding columns are connected with the stabilizing column, connecting inclined rods are hinged between the two coordination sliding blocks, and the two connecting inclined rods are hinged.
Preferably, the two connecting diagonal rods are connected through a connecting spring.
Preferably, the two limit cross blocks are connected through a limit spring.
Compared with the prior art, the invention has the beneficial effects that
(1) According to the invention, two ends of a device body are inserted into a fastener, a handle is rotated, a power shaft is rotated, a threaded sleeve is rotated, then a threaded moving rod drives a trapezoidal seat to move, two matching blocks are arranged in a matching way with the trapezoidal seat, a hinged inclined rod rotates downwards, so that the device body is clamped together through two clamping heads, a rope is wound to drive an installation transverse column to move, then the angle of the installation inclined rod is changed, the installation sleeve block is driven to slide on an installation vertical column, and a movable contact piece and a static contact piece are contacted with an alarm to give an alarm, so that the completion of the fixation of the device body is reminded; the actuating cylinder, the cylinder free end drives the sliding block downstream, then electric drill head downstream, accomplish drilling effect, slide on stable set post through stable cover simultaneously, electric drill head drilling stability has further been improved, simultaneously the sliding block downstream, with the piece contact, thereby through spacing down tube angle change, it slides on spacing spreader to drive spacing spreader, spacing spring further extension, thereby play the buffering effect when electric drill head drills down, play protection electric drill bit, can play protection electric drill bit through spacing buffer, can play the gliding position of spacing stable set again.
(2) The auxiliary sliding column moves downwards to drive the auxiliary sliding block to move in the auxiliary box, so that the auxiliary spring is further compressed; the stabilizing column moves to drive the coordination sliding column to move, the coordination sliding block moves at the same time, the angles of the two connecting inclined rods are changed, the connecting spring is further stretched, and a buffering effect is further achieved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the power unit of the present invention;
FIG. 3 is a schematic diagram of a limiting buffer according to the present invention;
FIG. 4 is a schematic view of the fastener of the present invention;
FIG. 5 is a diagram illustrating an exemplary mounter structure;
FIG. 6 is a schematic view of the structure of the auxiliary device of the present invention;
FIG. 7 is a schematic view of the dispenser of the present invention.
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. 1-7, in the embodiment of the present invention, the complex industrial detection device with data-driven modeling and model-free adaptive control includes a processing column 1 and a base 2, where the base 2 is symmetrically provided with fasteners 3, the fasteners 3 are used to fix a device body 4, the upper portion of the processing column 1 is provided with an installation base 5, and the bottom of the installation base 5 is provided with a power device 6;
the power device 6 comprises a power box 61, a cylinder 62 is arranged on the inner top wall of the power box 61, the free end of the cylinder 62 is connected with a sliding block 63, the sliding block 63 is connected with a sliding column 64, the sliding column 64 is connected with an electric drill 65 through the power box 61, stabilizing sleeve columns 66 are symmetrically arranged in the power box 61, stabilizing sleeves 67 are slidably sleeved on the stabilizing sleeve columns 66, the two stabilizing sleeves 67 are connected with the sliding column 64 together, a limiting buffer 68 is arranged at the top end of each stabilizing sleeve column 66, and the limiting buffer 68 is matched with the sliding block 63;
spacing buffer 68 includes spacing buffer tank 681, and spacing buffer tank 681 sets up on the 66 tops of stable sleeve post, be equipped with spacing stull 682 in the spacing buffer tank 681, the cover is equipped with spacing stull 683 on the spacing stull 682, and the articulated spacing down tube 684 that is equipped with on the spacing stull 683, and articulated being connected with together piece 685 between two spacing down tube 684 jointly, be connected through assistor 686 between with piece 685 and the spacing buffer tank 681, and spacing stull 683 bottom is equipped with the stabilization post 687, connects through coordinators 688 between two stabilization posts 687, connects through spacing spring 684 between two spacing stulls 683.
Start cylinder 62, cylinder 62 free end drives sliding block 63 downstream, then electric drill bit 65 downstream, accomplish drilling effect, slide on stable sleeve post 66 through stable cover 67 simultaneously, electric drill bit 65 drilling stability has further been improved, sliding block 63 downstream simultaneously, with the contact of piece 685, thereby change through spacing down tube 684 angle, drive spacing horizontal block 683 and slide on spacing horizontal post 682, spacing spring 684 further is tensile, thereby play the buffering effect when electric drill bit 65 drills down, play protection electric drill bit 65, can be in order to play protection electric drill bit 65 through spacing buffer 68, can play the gliding position of spacing stable sleeve 67 again.
The fastener 3 of this embodiment includes fastening box 31, and the fastening box 31 internal rotation is equipped with thread bush 32, and thread bush 32 internal thread connection has the screw to move pole 33, and screw moves pole 33 and is connected with trapezoidal seat 34, and thread bush 32 is connected with power shaft 35, and power shaft 35 passes fastening box 31 and is connected with handle 36, be equipped with wiring 37 on the power shaft 35, wiring 37 is connected with erector 39 through reel 38, it has articulated piece 310 to articulate in the fastening box 31, and articulated piece 310 is articulated to be set up with articulated down tube 311, and articulated down tube 311 lower part is equipped with clamping head 312 and coordination block 313, and two coordination blocks 313 set up with trapezoidal seat 34 cooperation, two clamping head 312 clamp device bodies 4 jointly.
The fastening box 31 of the present embodiment is connected to the hinge slant rod 311 by a fastening spring 314.
Installer 39 of this embodiment includes mounting box 391, is equipped with installation upright 392 in the mounting box 391, and the slip cap is equipped with installation sleeve 393 on installation upright 392, and installation sleeve 393 is articulated with installation sloping pole 394 and sets up, and installation sleeve 393 passes through installation spring coupling with the bottom wall in mounting box 391, and installation sloping pole 394 is articulated with installation crossbar 395 and is connected the setting, and installation crossbar 395 is connected with wiring 37, installation sleeve 393 lateral part is equipped with movable contact 396, and the roof is equipped with static contact 397 in the mounting box 391, and movable contact 396, the contact of static contact 397 are used for 398 of alarm to report to the police.
Inserting two ends of a device body 4 into a fastener 3, rotating a handle 36, rotating a power shaft 35, rotating a threaded sleeve 32, driving a threaded rod 33 to drive a trapezoidal seat 34 to move, arranging two matching blocks 313 and the trapezoidal seat 34 in a matched mode, and downwards rotating a hinged inclined rod 311, so that the device body 4 is clamped together through two clamping heads 312, a rope winding 37 contracts, a mounting transverse column 395 is driven to move, an angle of the mounting inclined rod 394 is changed, a mounting sleeve block 393 is driven to slide on a mounting vertical column 392, a movable contact plate 396 and a static contact plate 397 are in contact with an alarm 398 to give an alarm, and therefore the device body 4 is reminded of finishing fixing;
the assistor 686 of this embodiment includes an auxiliary box 6861, an auxiliary slider 6862 is slidably disposed in the auxiliary box 6861, an auxiliary sliding post 6863 is disposed on the auxiliary slider 6862, and the auxiliary sliding post 6863 passes through the auxiliary box 6861 and is connected with the same block 685.
The auxiliary slider 6862 and the inner bottom wall of the auxiliary case 6861 of the present embodiment are connected by an auxiliary spring 6864.
The auxiliary sliding column 6863 moves downwards to drive the auxiliary sliding block 6862 to move in the auxiliary box 6861, so that the auxiliary spring 6864 is further compressed;
the coordinator 688 of this embodiment includes coordination box 6881, and it is equipped with coordination slider 6882 to slide between the coordination box 6881, and two coordination sliders 6882 all are equipped with coordination slide column 6883, and coordination slide column 6883 is connected with stabilizing post 687, and articulated being equipped with between two coordination sliders 6882 connects down tube 6884, and two are connected down tube 6884 and articulate.
The two connecting inclined rods 6884 of the present embodiment are connected by a connecting spring 6885.
Steady post 687 removes, drives coordination sliding column 6883 and removes, and coordination slider 6882 removes simultaneously, and then two connection sloping pole 6884 angles change, and the further extension of connecting spring 6885, and then further play the cushioning effect.
The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (9)

1. The complex industrial detection device comprises a processing column (1) and a base (2), and is characterized in that fasteners (3) are symmetrically arranged on the base (2), the fasteners (3) are used for fixing a device body (4), an installation seat (5) is arranged at the upper part of the processing column (1), and a power device (6) is arranged at the bottom of the installation seat (5);
the power device (6) comprises a power box (61), wherein a cylinder (62) is arranged on the inner top wall of the power box (61), the free end of the cylinder (62) is connected with a sliding block (63), the sliding block (63) is connected with a sliding column (64), the sliding column (64) penetrates through the power box (61) and is connected with an electric drill bit (65), a stable sleeve column (66) is symmetrically arranged in the power box (61), a stable sleeve (67) is sleeved on the stable sleeve column (66) in a sliding manner, the two stable sleeves (67) are connected with the sliding column (64) together, a limiting buffer (68) is arranged at the top end of the stable sleeve column (66), and the limiting buffer (68) is matched with the sliding block (63);
spacing buffer (68) are including spacing baffle-box (681), and spacing baffle-box (681) set up on stable jacket post (66) top, be equipped with spacing stull (682) in spacing baffle-box (681), the cover is equipped with spacing stull (683) on spacing stull (682), and articulated being equipped with spacing down tube (684) on spacing stull (683), and articulated being connected with together piece (685) between two spacing down tube (684) jointly, is connected through assistor (686) between with piece (685) and spacing baffle-box (681), and spacing stull (683) bottom is equipped with stabilization column (687), connects through coordinator (688) between two stabilization column (687).
2. The complex industrial detection device for data-driven modeling and model-free adaptive control according to claim 1, wherein the fastener (3) comprises a fastening box (31), a threaded sleeve (32) is rotatably arranged in the fastening box (31), a threaded moving rod (33) is connected in the threaded sleeve (32), a trapezoidal seat (34) is connected to the threaded moving rod (33), a power shaft (35) is connected to the threaded sleeve (32), the power shaft (35) penetrates through the fastening box (31) and is connected with a handle (36), a winding rope (37) is arranged on the power shaft (35), the winding rope (37) is connected with an installer (39) through a winding wheel (38), a hinge block (310) is hinged in the fastening box (31), the hinge block (310) is hinged to a hinge inclined rod (311), and a clamping head (312) and a coordination block (313) are arranged on the lower portion of the hinge inclined rod (311), the two matching blocks (313) are matched with the trapezoidal seat (34), and the two clamping heads (312) clamp the device body (4) together.
3. The complex industrial instrumentation device of the data driven modeling and model-free adaptive control according to claim 2, wherein the fastening box (31) is connected with the hinged diagonal rod (311) by a fastening spring (314).
4. The complex industrial detection device for the data-driven modeling and model-free adaptive control as claimed in claim 2, wherein the installer (39) comprises an installation box (391), an installation vertical column (392) is arranged in the installation box (391), an installation sleeve block (393) is slidably sleeved on the installation vertical column (392), the installation sleeve block (393) is hinged to an installation inclined rod (394), the installation inclined rod (394) is hinged to an installation cross column (395), the installation cross column (395) is connected to the rope winding (37), a movable contact piece (396) is arranged on the side of the installation sleeve block (393), a static contact piece (397) is arranged on the inner top wall of the installation box (391), and the movable contact piece (396) and the static contact piece (397) are in contact with the alarm (398) for alarming.
5. The complex industrial detection device for data-driven modeling and model-free adaptive control according to claim 1, wherein the assistor (686) comprises an auxiliary box (6861), an auxiliary sliding block (6862) is slidably arranged in the auxiliary box (6861), an auxiliary sliding column (6863) is arranged on the auxiliary sliding block (6862), and the auxiliary sliding column (6863) penetrates through the auxiliary box (6861) to be connected with the same block (685).
6. The complex industrial detection device for data-driven modeling and model-free adaptive control according to claim 5, wherein the auxiliary slider (6862) is connected with an inner bottom wall of the auxiliary box (6861) through an auxiliary spring (6864).
7. The complex industrial detection device for data-driven modeling and model-free adaptive control according to claim 1, wherein the coordinators (688) comprise coordination boxes (6881), coordination slide blocks (6882) are slidably arranged between the coordination boxes (6881), two coordination slide blocks (6882) are respectively provided with a coordination slide column (6883), the coordination slide columns (6883) are connected with stabilizing columns (687), connecting inclined rods (6884) are hinged between the two coordination slide blocks (6882), and the two connecting inclined rods (6884) are hinged.
8. The complex industrial instrumentation of data driven modeling and model-free adaptive control according to claim 7, wherein the two connecting diagonal rods (6884) are connected by a connecting spring (6885).
9. The complex industrial detection device for data-driven modeling and model-free adaptive control according to claim 1, wherein the two limit crossbars (683) are connected with each other through a limit spring (684).
CN202011535985.XA 2020-12-23 2020-12-23 Complex industrial detection device for data-driven modeling and model-free adaptive control Pending CN112650178A (en)

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CN202011535985.XA CN112650178A (en) 2020-12-23 2020-12-23 Complex industrial detection device for data-driven modeling and model-free adaptive control

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Application Number Priority Date Filing Date Title
CN202011535985.XA CN112650178A (en) 2020-12-23 2020-12-23 Complex industrial detection device for data-driven modeling and model-free adaptive control

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113582267A (en) * 2021-08-13 2021-11-02 广东腾昊建设工程有限公司 Efficient nitrogen and phosphorus removal sewage treatment device and sewage treatment process based on same

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CN207043100U (en) * 2017-06-10 2018-02-27 谷城鑫茂机械有限公司 A kind of stamping machine for being used to process auto parts and components
DE102017223536A1 (en) * 2017-12-21 2019-06-27 Te Connectivity Germany Gmbh Punching buffer for attachment to a lower or upper die part of a punching device, lower or upper die part, punching device
CN111009999A (en) * 2019-12-25 2020-04-14 扬中市飞达通信设备有限公司 Processing equipment for stator punching sheet
CN210877015U (en) * 2019-04-28 2020-06-30 绍兴精磊钢结构工程有限公司 Steel plate punching device capable of cushioning
CN211515744U (en) * 2019-12-07 2020-09-18 天津长宏杰金属制品有限公司 Numerical control punch for metal block machining

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN207043100U (en) * 2017-06-10 2018-02-27 谷城鑫茂机械有限公司 A kind of stamping machine for being used to process auto parts and components
DE102017223536A1 (en) * 2017-12-21 2019-06-27 Te Connectivity Germany Gmbh Punching buffer for attachment to a lower or upper die part of a punching device, lower or upper die part, punching device
CN210877015U (en) * 2019-04-28 2020-06-30 绍兴精磊钢结构工程有限公司 Steel plate punching device capable of cushioning
CN211515744U (en) * 2019-12-07 2020-09-18 天津长宏杰金属制品有限公司 Numerical control punch for metal block machining
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* Cited by examiner, † Cited by third party
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CN113582267A (en) * 2021-08-13 2021-11-02 广东腾昊建设工程有限公司 Efficient nitrogen and phosphorus removal sewage treatment device and sewage treatment process based on same

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