CN108380751A - A kind of diel that punching press is stablized - Google Patents
A kind of diel that punching press is stablized Download PDFInfo
- Publication number
- CN108380751A CN108380751A CN201810251136.8A CN201810251136A CN108380751A CN 108380751 A CN108380751 A CN 108380751A CN 201810251136 A CN201810251136 A CN 201810251136A CN 108380751 A CN108380751 A CN 108380751A
- Authority
- CN
- China
- Prior art keywords
- fixedly connected
- lower die
- diel
- stablized
- punching press
- 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.)
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Classifications
-
- 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
- B21D37/10—Die sets; Pillar guides
Abstract
The invention discloses the diels that a kind of punching press is stablized, and are related to Stamping Die Technology field.The diel that the punching press is stablized, including pedestal, it is provided with lower die above the pedestal, and lower die two bottom sides are respectively arranged below there are two fixing sleeve, the bottom of two fixing sleeves be fixedly connected at the top of pedestal, the both sides of the lower die bottom are respectively fixedly connected with there are two stabiliser bar, and through-hole is offered at the top of the fixing sleeve, and spring groove is offered in fixing sleeve, the top of the spring groove is connected to the bottom of through-hole.The diel that the punching press is stablized, by the way that motor, threaded rod and thread bush is arranged, and fixed ring and fixed link are equipped with, pressing mold is carried out so as to make motor that upper mold be driven to be moved at the top of lower die along fixed link, by the way that stabiliser bar is arranged, and fixing sleeve, spring and buffer board are equipped with, so as to effectively buffer the pressure that lower die during pressing mold is born.
Description
Technical field
The present invention relates to Stamping Die Technology field, specially a kind of diel of punching press stabilization.
Background technology
Diel is in Cold Press Working, and a kind of special process that material is processed into part or semi-finished product is equipped,
Referred to as cold punching die.Punching press is to apply pressure to material using the mold being mounted on forcing press at room temperature, makes its generation
Separation or plastic deformation, to obtain a kind of pressure processing method of required part.
Majority diel stability of mobile mechanism in punching course is poor at present, and rolling is also easy to produce in punching course
It is dynamic, to easily presswork be caused the case where flaw occur, directly influence the processing quality of diel.
Invention content
（One）The technical issues of solution
In view of the deficiencies of the prior art, the present invention provides the diel that a kind of punching press is stablized, most punching presses at present are solved
The mold stability of mobile mechanism poor the problem of influencing processing quality in punching course.
（Two）Technical solution
In order to achieve the above object, the present invention is achieved by the following technical programs：A kind of diel that punching press is stablized, including
Pedestal, is provided with lower die above the pedestal, and lower die two bottom sides are respectively arranged below that there are two fixing sleeve, two institutes
State the bottom of fixing sleeve be fixedly connected at the top of pedestal, the both sides of the lower die bottom are respectively fixedly connected with that there are two stablize
Bar offers through-hole at the top of the fixing sleeve, and offers spring groove in fixing sleeve, the top of the spring groove and through-hole
Bottom is connected to, and the inner wall bottom of spring groove is fixedly connected with the bottom end of spring, the top of the spring and the bottom of buffer board
Be fixedly connected, one end of the opposite lower die of stabiliser bar through through-hole and be fixedly connected at the top of buffer board.
The both sides of the base top are respectively fixedly connected with there are two support plate, and are provided between two support plates
Mould is provided with crossbeam above the upper mold, and the both ends of crossbeam are fixedly connected with the opposite side of two support plates respectively, institute
It states and is installed with motor at the top of crossbeam, and the output shaft of motor, by shaft coupling and threaded rod, the front of the upper mold is solid
Dingan County is equipped with thread bush, and thread bush is threadedly coupled with threaded rod, and fixed block, and fixed block are provided with below the threaded rod
Bottom and pedestal at the top of be fixedly connected, ball axis is embedded at the top of the fixed block, and threaded rod is socketed in ball axis
Bottom end.
Two sides at the lower die back side are respectively fixedly connected with there are two fixed ring, and have been respectively interposed in two fixed rings
Two fixed links, the bottom ends of two fixed links be fixedly connected at the top of pedestal, two support plate opposite sides
Top offer two sliding slots respectively, the both sides of the upper mold are respectively fixedly connected with that there are two fixinig plates, and two fixinig plates
On be movably connected with there are two axis pin, be respectively sleeved on two pulleys on two axis pins, and two pulleys are far from two
The side of fixinig plate is slidably connected with two opposite sides of sliding slot inner wall respectively.
Preferably, the diameter of the through-hole is less than the diameter of spring groove, and the spacing of through-hole wall and stabiliser bar side surface
No more than two millimeters.
Preferably, the elastic force of the spring is more than the dead weight of lower die, and between the side surface of spring and the inner wall of spring groove
There are gaps.
Preferably, the threaded rod is not provided with screw thread on one end of ball axis, and threaded rod is socketed in the portion in ball axis
It point is fixedly connected with the inner ring of ball axis.
Preferably, fit closely at the top of the inner wall of the top of the buffer board and spring groove, and the side surface of buffer board with
There are gaps between the inner wall of spring groove.
Preferably, the length of the sliding slot is more than the spacing of upper mold and lower die, and the circle centre position of the pulley is socketed in axis pin
On.
（Three）Advantageous effect
The present invention provides the diels that a kind of punching press is stablized.Has following advantageous effect：
（1）, the diel stablized of the punching press, by the way that motor, threaded rod and thread bush and fixed ring and fixed link is arranged
It is equipped with, carries out pressing mold so as to make motor running that upper mold be driven to be moved at the top of lower die along fixed link, greatly carry
The high punching press stability of the diel, while by being equipped with and can effectively stablize of fixinig plate, axis pin and pulley
The movement of mould efficiently solves the problems, such as that mobile mechanism's stability of most diels at present is poor, so as to effectively carry
The processing quality of high diel.
（2）, the diel stablized of the punching press, by the bottom of lower die be arranged stabiliser bar and fixing sleeve, through-hole,
Spring groove, spring and buffer board are equipped with, so as to effectively buffer the pressure that lower die during pressing mold is born, to pole
The earth extends the service life of the diel, while can effectively ensure that the processing quality of diel.
Description of the drawings
Fig. 1 is schematic structural view of the invention；
Fig. 2 is structure of the invention rearview；
Fig. 3 is the sectional view of fixing sleeve of the present invention.
In figure：1 pedestal, 2 lower dies, 3 fixing sleeves, 4 stabiliser bars, 5 through-holes, 6 spring grooves, 7 springs, 8 buffer boards, 9 support plates,
10 upper molds, 11 crossbeams, 12 motors, 13 threaded rods, 14 thread bush, 15 fixed blocks, 16 ball axis, 17 fixed rings, 18 fixed links, 19 are slided
Slot, 20 fixinig plates, 21 axis pins, 22 pulleys.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.
Examples of the embodiments are shown in the accompanying drawings, and in which the same or similar labels are throughly indicated identical or classes
As element or element with the same or similar functions.The embodiments described below with reference to the accompanying drawings are exemplary, purport
For explaining the present invention, and it is not considered as limiting the invention.
In the description of the present invention, it is to be understood that, term "center", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " be orientation based on ... shown in the drawings or
Position relationship is merely for convenience of description of the present invention and simplification of the description, and does not indicate or imply the indicated device or element must
There must be specific orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；Can be that machinery connects
It connects, can also be electrical connection；It can be directly connected, can also can be indirectly connected through an intermediary in two elements
The interaction relationship of the connection in portion or two elements.It for the ordinary skill in the art, can be according to specific feelings
Condition understands the concrete meaning of above-mentioned term in the present invention.
- 3 are please referred to Fig.1, the present invention provides a kind of technical solution：A kind of diel that punching press is stablized, including pedestal 1,
The top of pedestal 1 is provided with lower die 2, and 2 two bottom sides of lower die are respectively arranged below that there are two fixing sleeve 3, two fixing sleeves 3
Bottom be fixedly connected with the top of pedestal 1, the both sides of 2 bottom of lower die are respectively fixedly connected with that there are two stabiliser bar 4, fixing sleeves
3 top offers through-hole 5, and spring groove 6 is offered in fixing sleeve 3, and the diameter of through-hole 5 is less than the diameter of spring groove 6, and logical
5 inner wall of hole and the spacing of 4 side surface of stabiliser bar are no more than two millimeters, and design through this structure can effectively stablize stabiliser bar
4 movement in through-hole 5, to effectively increase the structural stability of the diel, top and the through-hole 5 of spring groove 6
Bottom is connected to, and the inner wall bottom of spring groove 6 is fixedly connected with the bottom end of spring 7, and the elastic force of spring 7 is more than the dead weight of lower die 2,
And there are gaps between the side surface and the inner wall of spring groove 6 of spring 7, are designed through this structure so as to make spring 7
Support effect is played to lower die 2, the normal use of lower die 2 has been effectively ensured, while spring 7 can be made to have in spring groove 6
The design rationality of spring 7 has been effectively ensured in certain deformation space, and the top of spring 7 is fixed with the bottom of buffer board 8 to be connected
It connects, one end of 4 opposite lower die 2 of stabiliser bar is fixedly connected through through-hole 5 and with the top of buffer board 8, by the bottom of lower die 2
Being equipped with for stabiliser bar 4 and fixing sleeve 3, through-hole 5, spring groove 6, spring 7 and buffer board 8 is set, so as to effectively slow
The pressure that lower die 2 is born during stamping die, to greatly extend the service life of the diel, while can be effective
Ensure the processing quality of diel, is fitted closely at the top of the top of buffer board 8 and the inner wall of spring groove 6, and the side of buffer board 8
There are gaps, through this structure design effectively to avoid buffer board 8 from spring groove between surface and the inner wall of spring groove 6
The case where abjection, occurs in 6, the normal use of buffer board 8 has been effectively ensured, while can effectively avoid the side surface of buffer board 8
There is a situation where frictional influences to occur to buffering lower die 2 with the inner wall of spring groove 6.
The both sides at the top of pedestal 1 are respectively fixedly connected with that there are two support plates 9, and are provided with upper mold between two support plates 9
10, the top of upper mold 10 is provided with crossbeam 11, and the both ends of crossbeam 11 are fixed with the opposite side of two support plates 9 connect respectively
It connects, the top of crossbeam 11 is installed with motor 12, and the output shaft of motor 12 is by shaft coupling and threaded rod 13, upper mold 10
Front is installed with thread bush 14, and thread bush 14 is threadedly coupled with threaded rod 13, and the lower section of threaded rod 13 is provided with fixation
Block 15, and the bottom of fixed block 15 is fixedly connected with the top of pedestal 1, the top of fixed block 15 is embedded with ball axis 16, and ball axis
The bottom end of threaded rod 13 is socketed in 16, threaded rod 13 is not provided with screw thread on one end of ball axis 16, and threaded rod 13 is socketed
Part in ball axis 16 is fixedly connected with the inner ring of ball axis 16, through this structure design can effectively by threaded rod 13 with
Frictional force between fixed block 15 greatly improves the diel to effectively increase the rotational efficienty of threaded rod 13
Working efficiency.
Two sides at 10 back side of lower die are respectively fixedly connected with there are two fixed ring 17, and are respectively interposed in two fixed rings 17
There are two fixed link 18, the bottom end of two fixed links 18 is fixedly connected with the top of pedestal 1, designs energy through this structure
The moving direction of enough effectively limitation upper molds 10, while the moving stability of upper mold 10 can be effectively improved, two support plates 9 are opposite
The top of side offers two sliding slots 19 respectively, and the both sides of upper mold 10 are respectively fixedly connected with there are two fixinig plate 20, and two
It is movably connected on fixinig plate 20 there are two axis pin 21, two pulleys 22, and two cunnings is respectively sleeved on two axis pins 21
22 sides far from two fixinig plates 20 of wheel are slidably connected with two opposite sides of 19 inner wall of sliding slot respectively, by the way that motor is arranged
12, threaded rod 13 and thread bush 14 and fixed ring 17 and fixed link 18 are equipped with, so as to make motor 12 operate band
Dynamic upper mold 10 is moved to 2 top of lower die along fixed link 18 and carries out pressing mold, and the punching press for greatly improving the diel is stablized
Property, while the movement of upper mold 10 can effectively be stablized by being equipped with for fixinig plate 20, axis pin 21 and pulley 22, effectively solve
The poor problem of mobile mechanism's stability of current most diels, so as to effectively improving the processing matter of diel
Amount, the length of sliding slot 19 are more than the spacing of upper mold 10 and lower die 2, and the circle centre position of pulley 22 is socketed on axis pin 21, in this way
Structure design the case where capable of effectively avoiding sliding slot 19 from influencing 10 normal movement of upper mold occur, the stamping die has been effectively ensured
The property reasonable in design of tool.
When the diel work that the punching press is stablized, the ball for driving threaded rod 13 on fixed block 15 is operated by motor 12
Rotation in axis 16 limits upper mold 10 along solid to drive upper mold 10 to be moved to lower die 2 by thread bush 14 by fixed ring 17
Fixed pole 18 moves, and carries out punching press to make upper mold 10 be bonded with lower die 2, oppressing buffer board 8 by stabiliser bar 4 and move down makes bullet
Spring 7 generates deformation and it is steady to have reached the diel punching press to make spring 7 bear the impact force that upper mold 10 acts in lower die 2
Fixed effect.
It can to sum up obtain, the diel which stablizes, by the way that stabiliser bar 4 and fixing sleeve is arranged in the bottom of lower die 2
3, through-hole 5, spring groove 6, spring 7 and buffer board 8 are equipped with, and have effectively buffered the pressure that lower die 2 during pressing mold is born,
The service life of the diel is greatly extended, while the processing quality of diel has been effectively ensured.
Meanwhile it being set by the way that motor 12, threaded rod 13 and thread bush 14 and fixed ring 17 and the cooperation of fixed link 18 is arranged
It sets, makes the running of motor 12 that upper mold 10 be driven to be moved to 2 top of lower die along fixed link 18 and carry out pressing mold, greatly improve the punching
The punching press stability of compression mould, while upper mold 10 is effectively stabilized by being equipped with for fixinig plate 20, axis pin 21 and pulley 22
Movement, efficiently solve the problems, such as that mobile mechanism's stability of most diels at present is poor, effectively increase stamping die
The processing quality of tool.
The electric elements occurred in this article are electrically connected with extraneous main controller and 220V alternating currents, and main controller can be meter
Calculation machine etc. plays the conventionally known equipment of control.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Any one skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (6)
1. the diel that a kind of punching press is stablized, including pedestal（1）, it is characterised in that：The pedestal（1）Top be provided with down
Mould（2）, and lower die（2）Two bottom sides are respectively arranged below there are two fixing sleeve（3）, two fixing sleeves（3）Bottom
And pedestal（1）Top be fixedly connected, the lower die（2）The both sides of bottom are respectively fixedly connected with there are two stabiliser bar（4）, institute
State fixing sleeve（3）Top offer through-hole（5）, and fixing sleeve（3）Inside offer spring groove（6）, the spring groove（6）Top
Portion and through-hole（5）Bottom connection, and spring groove（6）Inner wall bottom be fixedly connected with spring（7）Bottom end, the spring
（7）Top and buffer board（8）Bottom be fixedly connected, the stabiliser bar（4）Opposite lower die（2）One end run through through-hole（5）
And and buffer board（8）Top be fixedly connected；
The pedestal（1）The both sides at top are respectively fixedly connected with there are two support plate（9）, and two support plates（9）Between be arranged
There is upper mold（10）, the upper mold（10）Top be provided with crossbeam（11）, and crossbeam（11）Both ends respectively with two support plates
（9）Opposite side be fixedly connected, the crossbeam（11）Top be installed with motor（12）, and motor（12）Output shaft
Pass through shaft coupling and threaded rod（13）, the upper mold（10）Front be installed with thread bush（14）, and thread bush（14）With
Threaded rod（13）It is threadedly coupled, the threaded rod（13）Lower section be provided with fixed block（15）, and fixed block（15）Bottom with
Pedestal（1）Top be fixedly connected, the fixed block（15）Top be embedded with ball axis（16）, and ball axis（16）Inside it is socketed with spiral shell
Rasp bar（13）Bottom end；
The lower die（10）Two sides at the back side are respectively fixedly connected with there are two fixed ring（17）, and two fixed rings（17）Interior point
It Chuan Cha not be there are two fixed link（18）, two fixed links（18）Bottom end and pedestal（1）Top be fixedly connected, two
The support plate（9）The top of opposite side offers two sliding slots respectively（19）, the upper mold（10）Both sides fix respectively
There are two fixinig plates for connection（20）, and two fixinig plates（20）On be movably connected with there are two axis pin（21）, two pins
Axis（21）On be respectively sleeved on two pulleys（22）, and two pulleys（22）Far from two fixinig plates（20）Side respectively with two
A sliding slot（19）The opposite side of inner wall is slidably connected.
2. the diel that a kind of punching press according to claim 1 is stablized, it is characterised in that：The through-hole（5）Diameter
Less than spring groove（6）Diameter, and through-hole（5）Inner wall and stabiliser bar（4）The spacing of side surface is no more than two millimeters.
3. the diel that a kind of punching press according to claim 1 is stablized, it is characterised in that：The spring（7）Elastic force
More than lower die（2）Dead weight, and spring（7）Side surface and spring groove（6）Inner wall between there are gaps.
4. the diel that a kind of punching press according to claim 1 is stablized, it is characterised in that：The threaded rod（13）It is close
Ball axis（16）One end on be not provided with screw thread, and threaded rod（13）It is socketed in ball axis（16）Interior part and ball axis（16）Inner ring
It is fixedly connected.
5. the diel that a kind of punching press according to claim 1 is stablized, it is characterised in that：The buffer board（8）Top
Portion and spring groove（6）Inner wall at the top of fit closely, and buffer board（8）Side surface and spring groove（6）Inner wall between there are
Gap.
6. the diel that a kind of punching press according to claim 1 is stablized, it is characterised in that：The sliding slot（19）Length
More than upper mold（10）With lower die（2）Spacing, the pulley（22）Circle centre position be socketed in axis pin（21）On.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810251136.8A CN108380751A (en) | 2018-03-26 | 2018-03-26 | A kind of diel that punching press is stablized |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810251136.8A CN108380751A (en) | 2018-03-26 | 2018-03-26 | A kind of diel that punching press is stablized |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108380751A true CN108380751A (en) | 2018-08-10 |
Family
ID=63072161
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810251136.8A Pending CN108380751A (en) | 2018-03-26 | 2018-03-26 | A kind of diel that punching press is stablized |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108380751A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20120077720A (en) * | 2010-12-31 | 2012-07-10 | 대우조선해양 주식회사 | Servo press apparatus for curvature forming of metal member |
| CN103611815A (en) * | 2013-12-02 | 2014-03-05 | 国家电网公司 | Prismatic cross beam forming mould |
| CN205914633U (en) * | 2016-08-29 | 2017-02-01 | 四川蜀腾母线有限公司 | Bus duct end former |
| CN107199286A (en) * | 2017-07-28 | 2017-09-26 | 郴州金通信息科技有限公司 | A kind of accurate metal stamping die |
| CN206613925U (en) * | 2017-03-27 | 2017-11-07 | 浙江工业职业技术学院 | A kind of stable diel of performance |
| CN107552644A (en) * | 2017-08-30 | 2018-01-09 | 扬州市中福商业管理有限公司 | A kind of mould processing device with buffering effect |
| CN107755502A (en) * | 2017-11-09 | 2018-03-06 | 无锡三众模具有限公司 | A kind of high-efficiency and continuous diel |
-
2018
- 2018-03-26 CN CN201810251136.8A patent/CN108380751A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20120077720A (en) * | 2010-12-31 | 2012-07-10 | 대우조선해양 주식회사 | Servo press apparatus for curvature forming of metal member |
| CN103611815A (en) * | 2013-12-02 | 2014-03-05 | 国家电网公司 | Prismatic cross beam forming mould |
| CN205914633U (en) * | 2016-08-29 | 2017-02-01 | 四川蜀腾母线有限公司 | Bus duct end former |
| CN206613925U (en) * | 2017-03-27 | 2017-11-07 | 浙江工业职业技术学院 | A kind of stable diel of performance |
| CN107199286A (en) * | 2017-07-28 | 2017-09-26 | 郴州金通信息科技有限公司 | A kind of accurate metal stamping die |
| CN107552644A (en) * | 2017-08-30 | 2018-01-09 | 扬州市中福商业管理有限公司 | A kind of mould processing device with buffering effect |
| CN107755502A (en) * | 2017-11-09 | 2018-03-06 | 无锡三众模具有限公司 | A kind of high-efficiency and continuous diel |
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Application publication date: 20180810 |
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