CN219074104U - Backboard punching die - Google Patents

Backboard punching die Download PDF

Info

Publication number
CN219074104U
CN219074104U CN202222530618.1U CN202222530618U CN219074104U CN 219074104 U CN219074104 U CN 219074104U CN 202222530618 U CN202222530618 U CN 202222530618U CN 219074104 U CN219074104 U CN 219074104U
Authority
CN
China
Prior art keywords
punching
die
lower die
punch
rack
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202222530618.1U
Other languages
Chinese (zh)
Inventor
樊玉斌
赵郑平
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shanghai Yuyao Machinery Equipment Co ltd
Original Assignee
Shanghai Yuyao Machinery Equipment Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shanghai Yuyao Machinery Equipment Co ltd filed Critical Shanghai Yuyao Machinery Equipment Co ltd
Priority to CN202222530618.1U priority Critical patent/CN219074104U/en
Application granted granted Critical
Publication of CN219074104U publication Critical patent/CN219074104U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • 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
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/50Photovoltaic [PV] energy

Landscapes

  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)

Abstract

The utility model relates to a back plate punching die which comprises a lower die body, wherein the lower die body is matched with an upper die body in a sliding manner through a guide sliding column, the lower die body comprises a lower die positioning long bar block, the lower die positioning long bar block is provided with a lower die positioning long groove, a lower die positioning rack is arranged in the lower die positioning long groove, the lower die positioning rack is connected with a lower die punching insert through a tooth slot in a clamping manner, the upper die body comprises an upper die positioning long bar block, the upper die positioning long bar block is provided with an upper die positioning long groove, an upper die positioning rack is arranged in the upper die positioning long groove, an upper die punching punch is connected with the upper die positioning rack through the tooth slot in a clamping manner, and the upper die punching punch is positioned right above the lower die punching insert. According to the utility model, through the design of the integral structure, the punching work requirements of the backboard with different numbers and different hole distances on the installation holes of different models can be met without replacing the backboard punching die.

Description

Backboard punching die
Technical Field
The application relates to the technical field of back plate punching dies, in particular to a back plate punching die.
Background
Typically, a plurality of mounting holes are provided in the back plate, and the back plate mounting holes are punched by a back plate punching die. The backboard of different models is provided with different mounting holes, for example, five mounting holes such as a round hole, a waist hole, a round hole, a waist hole and a round hole are sequentially formed in the backboard of the model A, and the hole distance between every two adjacent mounting holes is 75mm; the model B backboard is sequentially provided with four mounting holes such as a waist hole, a round hole, a waist hole and a round hole, and the hole distance between every two adjacent mounting holes is 90mm. Therefore, the model A backboard and the model B backboard are provided with mounting holes with different numbers and different hole pitches, so that two backboard punching dies are needed to be used for punching the model A backboard and the model B backboard respectively, and the production cost is greatly increased; and when the punching work of the backboard of the model A is replaced by the punching work of the backboard of the model B, the backboard punching die needs to be replaced, so that the working efficiency is greatly reduced.
Chinese patent publication No. CN210160244U discloses a computer backplate cut-out press, when using, firstly place computer backplate at the board top of placing, the workman can clockwise or anticlockwise rotate the threaded rod, the nut in threaded rod outside receives the spacing of stopper, can not rotate along with the threaded rod, can only move to both ends or intermediate position department simultaneously through the screw thread, the nut drives splint and moves together, until splint inboard and laminating with computer backplate, press from both sides the backplate tightly through splint, workman accessible screws into the screw hole of punching block bottom difference, thereby can adjust the mounted position of punch, adjust the position of punching a hole of backplate according to the demand, during punching a hole, insert the punching rod respectively in the locating hole at die holder top earlier, be connected the upper die base with actuating device's output, actuating device promotes the upper die base and moves down, buffer spring can cushion impact force, avoid impact force great, impact speed is too fast to cause the backplate to damage, the punch a hole to computer backplate surface, the upper die base is continuously moved down, until upper die pad and lower die pad laminating, can accomplish the process of punching a computer backplate.
From the above, the distance between the punches in the product cannot be changed, and the punching requirement of the backboard with different types of mounting holes with different hole pitches cannot be met.
It should be noted that the information disclosed in the foregoing background section is only for enhancement of understanding of the background of the present application and thus may include information that does not form the prior art that is already known to those of ordinary skill in the art.
Disclosure of Invention
In view of at least one of the above technical problems, the present application provides a back plate punching die.
According to one aspect of the application, there is provided a back plate punching die, including the lower die body, the lower die body passes through guide slide post sliding fit upper die body, a serial communication port, the lower die body includes lower die location rectangular piece, lower die location rectangular piece is provided with the lower die location elongated slot, install the lower die location rack in the lower die location elongated slot, the lower die location rack has the lower die to punch into the son through the tooth's socket joint, the upper die body includes the upper die location rectangular piece, the upper die location rectangular piece is provided with the upper die location elongated slot, install the upper die location rack in the upper die location elongated slot, the upper die location rack has the upper die punching punch through the tooth's socket joint, the upper die punching punch is located directly over the lower die punching into the son.
In one implementation, the lower die punching insert comprises a lower clamping block, the lower clamping block is provided with an insert hole, a tooth protrusion of the lower clamping block is clamped with a tooth groove of the lower die positioning rack, the upper die punching punch comprises an upper clamping block, the lower part of the upper clamping block is fixedly connected with a punch, the tooth protrusion of the upper clamping block is clamped with the tooth groove of the upper die positioning rack, and the punch stretches into the insert hole.
In one implementation, the length of the lower clamping block is smaller than the length of the lower die positioning rack, and the length of the upper clamping block is smaller than the length of the upper die positioning rack.
In one implementation, the insert holes are provided in a circular, waist or diamond shape, and the shape of the punch is adapted to the shape of the insert holes.
In one implementation mode, a plurality of lower threaded holes are formed in one side of the lower die positioning long bar block, which is close to the lower die punching insert, and are in threaded connection with lower fastening screws, the lower fastening screws penetrate through the lower threaded holes to be connected with the lower clamping blocks, a plurality of upper threaded holes are formed in one side of the upper die positioning long bar block, which is close to the upper die punching punch, and the upper threaded holes are in threaded connection with upper fastening screws, and the upper fastening screws penetrate through the upper threaded holes to be connected with the upper clamping blocks.
In one implementation, a plurality of back plate front-back adjusting components are fixedly arranged above the lower die positioning racks, and each back plate front-back adjusting component comprises an outer rectangular block, and inner cutting bars are inserted into the outer rectangular blocks.
In one implementation, a plurality of size scale marks are fixedly arranged above the lower die positioning rack.
In one implementation, the lower die body comprises a lower connecting long plate, the lower connecting long plate is connected with a lower die positioning long block, a plurality of lower connecting holes are formed in the lower connecting long plate, the upper die body comprises an upper connecting long plate, the bottom side of the upper connecting long plate is connected with the upper die positioning long block, a plurality of upper connecting holes are formed in the upper connecting long plate, the lower connecting long plate is connected with the bottom end of the guide sliding column, the bottom side of the upper connecting long plate is fixedly connected with the cylinder body, and the top end of the guide sliding column penetrates through the cylinder body and the upper connecting long plate.
The application has the following technical effects:
this application has the lower mould positioning rack through having set up, and the lower mould positioning rack has the lower mould to punch a hole the go-in through tooth's socket joint, then the number of lower mould to punch a hole the go-in and the interval between the go-in of adjacent lower mould punching hole all can change, the same reason has set up the upper mould positioning rack, and the upper mould positioning rack has an upper mould punching punch through tooth's socket joint, then the number of upper mould punching punch and the interval between the adjacent upper mould punching punch all can change, consequently, need not to change backplate cut-out press, can satisfy the work requirement of punching a hole to the different model backplate that has the mounting hole of different numbers, different hole pitches.
The present application is further described below with reference to the accompanying drawings and examples.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following description will briefly explain the embodiments or the drawings needed in the prior art, and it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of the structure of one view angle of the present application;
FIG. 2 is a schematic view of another view of the present application;
FIG. 3 is a schematic view of a further view of the present application;
fig. 4 is an enlarged view of the structure at a in fig. 3;
FIG. 5 is a schematic structural view of a back plate;
fig. 6 is a schematic structural diagram of the mating back plate of the present application.
Reference numerals: 1. a lower die body; 101. positioning a long bar block by a lower die; 101a, positioning a long groove by a lower die; 102. positioning a rack by a lower die; 103. punching a punch in a lower die; 103a, lower clamping blocks; 103b, a sub-hole; 104. a lower fastening screw; 105. a back plate front-rear adjustment assembly; 105a, outer rectangular blocks; 105b, interpolation bars; 106. size scale marks; 107. the lower connecting long plate; 107a, lower connection holes; 2. an upper die body; 201. positioning a long bar block by an upper die; 201a, an upper die positioning long groove; 202. positioning racks by an upper die; 203. an upper die punching punch; 203a, an upper clamping block; 203b, a punch; 204. a fastening screw is arranged on the upper part; 205. the upper connecting long plate; 205a, upper connecting holes; 206. a cylinder; 3. a guide strut; 4. a back plate; 4a, round holes; 4b, waist holes.
Detailed Description
In order to make the above objects, features and advantages of the present application more comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is, however, susceptible of embodiment in many other forms than those described herein and similar modifications can be made by those skilled in the art without departing from the spirit of the application, and therefore the application is not to be limited to the specific embodiments disclosed below.
In the description of the present application, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, merely to facilitate description of the present application and simplify the description, and do not indicate or imply that the devices or elements being referred to must have a specific orientation, be configured and operated in a specific orientation, and are not to be construed as limiting the present application.
In the description of the present application, it should be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or an implicit indication of the number of technical features being indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "plurality" is at least two, such as two, three, etc., unless explicitly defined otherwise.
In the embodiments of the present application, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the embodiments of the present application will be understood by those of ordinary skill in the art according to the specific circumstances.
In one embodiment of the present application, as shown in fig. 1 to 6, a back plate punching die is provided, which includes a lower die body 1, the lower die body 1 is slidably matched with an upper die body 2 through a guide sliding column 3, a space is provided between the lower die body 1 and the upper die body 2, the upper die body 2 slides up and down along the guide sliding column 3, and the space between the lower die body 1 and the upper die body 2 can be changed.
The lower die body 1 includes a lower die positioning bar 101, and the lower die positioning bar 101 is provided with a lower die positioning long groove 101a, so that the lower die positioning bar 101 is provided as a concave bar. A lower die positioning rack 102 is installed in the lower die positioning long groove 101a, specifically, a threaded through hole is formed in the lower die positioning rack 102, and the lower die positioning rack is connected with the bottom of the lower die positioning long groove 101a through a bolt passing through the threaded through hole.
The lower die positioning racks 102 are connected with the lower die punching insert 103 through tooth grooves in a clamping mode, specifically, the lower die punching insert 103 comprises lower clamping blocks 103a, the lower clamping blocks 103a are provided with insert holes 103b, tooth protrusions of the lower clamping blocks 103a are connected with tooth grooves of the lower die positioning racks 102 in a clamping mode, the length of each lower clamping block 103a is smaller than that of each lower die positioning rack 102, at most 30 lower clamping blocks 103a can be connected with one lower die positioning rack 102 in a clamping mode at the same time, each lower die positioning rack 102 is provided with 600 tooth grooves, and each lower clamping block 103a is provided with 3 tooth protrusions and other parts are planes. Further, one side of the lower die positioning long bar 101 abuts against the lower die punching insert 103, and the other side abuts against the lower die positioning rack 102; the lower die positioning long bar 101 is provided with 50 lower threaded holes near one side of the lower die punching insert 103, the 50 lower threaded holes are arranged in a row, the lower threaded holes are in threaded connection with lower fastening screws 104, and the lower fastening screws 104 penetrate through the lower threaded holes to be connected with the lower clamping blocks 103a, so that the position of the lower clamping blocks 103a is locked through the lower fastening screws 104.
Similarly, the upper die body 2 includes an upper die positioning long bar 201, and the upper die positioning long bar 201 is provided with an upper die positioning long groove 201a, so that the upper die positioning long bar 201 is provided as a concave long bar. An upper die positioning rack 202 is installed in the upper die positioning long groove 201a, specifically, a threaded through hole is provided on the upper die positioning rack 202, and is connected with the bottom of the upper die positioning long groove 201a through a bolt passing through the threaded through hole.
The upper die positioning rack 202 is connected with an upper die punching punch 203 in a clamping manner through a tooth slot, and the upper die punching punch 203 is positioned right above the lower die punching insert 103. Specifically, the upper die punching punch 203 comprises an upper clamping block 203a, the punch 203b is fixedly connected below the upper clamping block 203a, tooth protrusions of the upper clamping block 203a are clamped with tooth grooves of the upper die positioning rack 202, the length of the upper clamping block 203a is smaller than that of the upper die positioning rack 202, at most 30 upper clamping blocks 203a can be clamped on one upper die positioning rack 202 at the same time, the upper die positioning rack 202 is provided with 600 tooth grooves, and the upper clamping block 203a is provided with 3 tooth protrusions and other parts are planes. Further, one side of the upper die positioning long bar 201 abuts against the upper die punching punch 203, and the other side of the upper die positioning long bar 201 abuts against the upper die positioning rack 202; the upper die positioning long bar 201 is provided with 50 upper threaded holes near one side of the upper die punching punch 203, the 50 upper threaded holes are aligned, the upper threaded holes are connected with the upper fastening screw 204 in a threaded manner, and the upper fastening screw 204 penetrates through the upper threaded holes to be connected with the upper clamping block 203a, so that the position of the upper clamping block 203a is locked through the upper fastening screw 204.
Finally, the punch 203b is inserted into the sub-hole 103b as the upper die body 2 slides down the guide runner 3.
In addition, the upper die punch 203 and the lower die punch insert 103 may punch holes of different shapes, specifically, the insert hole 103b in the lower die punch insert 103 is provided in a circular hole type, a waist hole type or a diamond shape, and the shape of the punch 203b in the upper die punch 203 is adapted to the shape of the insert hole 103 b.
Further, 4 back plate front- rear adjusting assemblies 105,4 are fixedly arranged above the lower die positioning rack 102, the back plate front-rear adjusting assemblies 105 are arranged in a row, each back plate front-rear adjusting assembly 105 comprises an outer rectangular block 105a, each outer rectangular block 105a is inserted with an inner inserting strip 105b, each outer rectangular block 105a is provided with a vertical screw hole, a bolt is connected through the corresponding vertical screw hole in a threaded mode, the bolt downwards penetrates through the corresponding vertical screw hole to be abutted against the corresponding inner inserting strip 105b, and therefore the position of each inner inserting strip 105b is locked. The insert 105b is abutted against the back plate 4, and the front-rear position of the back plate 4 can be adjusted by adjusting the position of the insert 105 b.
A plurality of dimension graduation marks 106 are fixedly arranged above the lower die positioning rack 102, the dimension graduation marks 106 are arranged on one side, close to the tooth groove position of the lower die positioning rack 102, of the dimension graduation marks 106, and the dimension graduation marks 106 cannot overlap with the back plate front-back adjusting assembly 105. The size graduation marks 106 are used to intuitively and accurately adjust the position of the lower die punch insert 103.
The lower die body 1 includes a lower connection long plate 107, the lower connection long plate 107 is connected with the lower die positioning long bar 101, a plurality of lower connection holes 107a are provided on the lower connection long plate 107, the lower connection long plate 107 is mounted on a platform, and the platform is connected with the lower connection long plate 107 through bolts passing through the lower connection holes 107 a.
The upper die body 2 comprises an upper connecting long plate 205, the bottom side of the upper connecting long plate 205 is connected with an upper die positioning long bar 201, a plurality of upper connecting holes 205a are formed in the upper connecting long plate 205, the upper connecting long plate 205 is arranged on the bottom side of an upper movable plate and a lower movable plate, and the upper movable plate and the lower movable plate are fixedly connected with a hydraulic pump or a piston rod of a pneumatic pump.
Further, the lower connecting long plate 107 is connected to the bottom end of the guide strut 3, the bottom side of the upper connecting long plate 205 is fixedly connected to the cylinder 206, and the top end of the guide strut 3 penetrates through the cylinder 206 and the upper connecting long plate 205.
The working procedure of "punching out the circular hole 4a, the waist hole 4b, the circular hole 4a" on the side of the back plate 4 of the present embodiment will be further described below:
for the position to be punched according to the mounting hole on the side edge of the back plate 4, a lower die punching insert 103 of a circular hole type insert hole 103b, a lower die punching insert 103 of a waist hole type insert hole 103b and a lower die punching insert 103 of a circular hole type insert hole 103b are mounted on the lower die body 1; similarly, an upper die punch 203 of the circular hole punch 203b, an upper die punch 203 of the waist hole punch 203b, and an upper die punch 203 of the circular hole punch 203b are mounted on the upper die body 2;
adjusting the interpolation bar 105b in the back plate front-back adjusting assembly 105, wherein the side edge of the back plate 4 is abutted against the interpolation bar 105 b;
the upper die body 2 moves downward along the guide spool 3, and the punch 203b of the upper die punch 203 punches the back plate 4 and protrudes into the sub-hole 103b after the punch 203b penetrates the back plate 4.
The foregoing description is only of the preferred embodiments of the present application and is not intended to limit the present application in any way. Any person skilled in the art may make many possible variations and modifications to the technical solution of the present application, or modify equivalent embodiments, using the methods and technical contents disclosed above, without departing from the scope of the technical solution of the present application. Therefore, all equivalent changes according to the shape, structure and principle of the present application are covered in the protection scope of the present application.

Claims (8)

1. The utility model provides a backplate cut-out press, includes the lower die body, the lower die body passes through guide strut sliding fit and goes up the die body, its characterized in that, the lower die body includes lower mould location rectangular piece, lower mould location rectangular piece is provided with the lower mould location elongated slot, install the lower mould location rack in the lower mould location elongated slot, the lower mould location rack has the lower mould to punch a hole the income through the tooth's socket joint, the die body includes the upper mould location rectangular piece, the upper mould location rectangular piece is provided with the upper mould location elongated slot, install the upper mould location rack in the upper mould location elongated slot, the upper mould location rack has the upper mould punching punch through the tooth's socket joint, the upper mould punching punch is in directly over the lower mould punching a hole the income.
2. The back plate punching die according to claim 1, wherein the lower die punching insert comprises a lower clamping block, the lower clamping block is provided with an insert hole, a tooth protrusion of the lower clamping block is clamped with a tooth groove of the lower die positioning rack, the upper die punching punch comprises an upper clamping block, a punch is fixedly connected below the upper clamping block, a tooth protrusion of the upper clamping block is clamped with the tooth groove of the upper die positioning rack, and the punch extends into the insert hole.
3. The back plate punching die according to claim 2, wherein the length of the lower clamping block is smaller than the length of the lower die positioning rack, and the length of the upper clamping block is smaller than the length of the upper die positioning rack.
4. The back plate punching die according to claim 2, wherein the insert holes are round holes, waist holes or rhombus holes, and the shape of the punch head is matched with the shape of the insert holes.
5. The back plate punching die according to claim 2, wherein a plurality of lower threaded holes are formed in a side edge, close to the lower die punching insert, of the lower die positioning long bar block, lower fastening screws are connected with the lower clamping blocks through threaded holes, a plurality of upper threaded holes are formed in a side edge, close to the upper die punching punch, of the upper die positioning long bar block, upper fastening screws are connected with the upper threaded holes through threaded connections, and the upper fastening screws are connected with the upper clamping blocks through the upper threaded holes.
6. The back plate punching die according to claim 1, wherein a plurality of back plate front-rear adjusting assemblies are fixedly arranged above the lower die positioning racks, and each back plate front-rear adjusting assembly comprises an outer rectangular block, and each outer rectangular block is inserted with an inner cutting.
7. The back plate punching die according to claim 1, wherein a plurality of size scale marks are fixedly arranged above the lower die positioning rack.
8. The back plate punching die according to claim 1, wherein the lower die body comprises a lower connecting long plate, the lower connecting long plate is connected with the lower die positioning long block, a plurality of lower connecting holes are formed in the lower connecting long plate, the upper die body comprises an upper connecting long plate, the bottom side of the upper connecting long plate is connected with the upper die positioning long block, a plurality of upper connecting holes are formed in the upper connecting long plate, the lower connecting long plate is connected with the bottom end of the guide sliding column, the bottom side of the upper connecting long plate is fixedly connected with the cylinder, and the top end of the guide sliding column penetrates through the cylinder and the upper connecting long plate.
CN202222530618.1U 2022-09-24 2022-09-24 Backboard punching die Active CN219074104U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202222530618.1U CN219074104U (en) 2022-09-24 2022-09-24 Backboard punching die

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202222530618.1U CN219074104U (en) 2022-09-24 2022-09-24 Backboard punching die

Publications (1)

Publication Number Publication Date
CN219074104U true CN219074104U (en) 2023-05-26

Family

ID=86402845

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202222530618.1U Active CN219074104U (en) 2022-09-24 2022-09-24 Backboard punching die

Country Status (1)

Country Link
CN (1) CN219074104U (en)

Similar Documents

Publication Publication Date Title
CN219074104U (en) Backboard punching die
CN213701386U (en) Processing device for elevator guide rail bracket
CN113231570B (en) Component pin forming device
CN212551280U (en) Steel pipe piercing press
CN115464042A (en) Back plate punching die and back plate punching processing technology
CN212168712U (en) Fast switching mold
CN218946086U (en) Complex driving punching die
CN211614022U (en) A cut-out press for hardware processing
CN211938756U (en) Novel rivet-free connecting tool
CN216262986U (en) Square pipe ladder front frame integral type return bend equipment that punches a hole
CN210756244U (en) Synchronous feeding device of angle assembling machine
CN213162657U (en) Aluminum frame door punching device
CN220942793U (en) Stamping die with a plurality of punches
CN216324330U (en) Guider for bender
CN212242704U (en) Multi-directional stamping equipment
CN214290363U (en) Automatic punching machine
CN210791310U (en) Sheet cutting die
CN214644320U (en) Semi-automatic round angle blanking machine
CN210059518U (en) Precise stamping die capable of being rapidly positioned
CN214639663U (en) Aluminium alloy stamping die that tolerance is high
JP2000301264A (en) Cam unit
CN218946122U (en) Fool-proof stamping die
CN210358737U (en) Adjustable punching mechanism for punching machine
CN103785746B (en) Quick die change device
CN217992864U (en) Plank atmospheric pressure punching device

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant