CN206253577U - Cold headers cutoff device - Google Patents
Cold headers cutoff device Download PDFInfo
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- CN206253577U CN206253577U CN201621366601.5U CN201621366601U CN206253577U CN 206253577 U CN206253577 U CN 206253577U CN 201621366601 U CN201621366601 U CN 201621366601U CN 206253577 U CN206253577 U CN 206253577U
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- swing arm
- cam
- cutting knife
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- arm
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Abstract
The utility model is related to using a kind of cold headers cutoff device,Including support,Cutting knife,Transmission mechanism and drive mechanism,Cutting knife is through transmission mechanism and drive mechanism power connector,Transmission mechanism includes rocking arm,Double-track cam and power transmission shaft,Double-track cam is fixedly mounted on power transmission shaft,Double-track cam includes the first cam monomer and the second cam monomer of coaxial and synchronous axial system,Power transmission shaft is connected with drive mechanism,The rocking arm middle part is rotatably provided on support through pivot shaft,Rocking arm includes driven swing arm,First active swing arm and the second active swing arm,First active swing arm and the second active swing arm are arranged in " people " font,The driven swing arm of rocking arm is articulated and connected with the footstalk of cutting knife,First active swing arm of rocking arm is engaged with the working curved surface of the first cam monomer,Second active swing arm of rocking arm is engaged with the working curved surface of the second cam monomer.The utility model uses double-cam structure form, has the advantages that cutter driving is reliable and stable and drive noise is low.
Description
Technical field
The utility model is related to cold headers, the specially cutoff device on cold headers.
Background technology
Cold-headingMachine is the special equipment for being specifically used to produce in batches the fasteners such as nut bolt based on pier.Cold-headingCut on machine
Material device generally includes drive mechanism, pass on Gong mechanism and cutting knife, and cutting knife coordinates on support in sliding, and drive mechanism is through transmission
Mechanism drives cutting knife sliding, so as to realize for wire rod blocking completion blank；Blank enters interior its end of corresponding mould through pier afterwards
Beat and form head.The cutoff device of existing cold headers has that structure design is unreasonable, and work the unreliable and big defect of noise.
The content of the invention
The present utility model purpose：It is the defect for overcoming prior art to exist, the utility model provides a kind of using double
Cam structure form, with the cold headers cutoff device that cutter driving is reliable and stable and drive noise is low.
To achieve the above object, the utility model provides following technical scheme：
A kind of cold headers cutoff device, including support, straight line slide the cutting knife coordinated on support, transmission mechanism and drive
Motivation structure, the cutting knife is through transmission mechanism and drive mechanism power connector, it is characterised in that：Described transmission mechanism is included and shaken
Arm, double-track cam and power transmission shaft, the double-track cam are fixedly mounted on power transmission shaft, and double-track cam includes coaxial and synchronous turn
Dynamic the first cam monomer and the second cam monomer, power transmission shaft is connected with drive mechanism, and the rocking arm middle part is through pivot shaft
Be rotatably provided on support, rocking arm include driven swing arm, the first active swing arm and the second active swing arm, the first active swing arm and
Second active swing arm arranges that driven swing arm and the footstalk of cutting knife of rocking arm are articulated and connected in " people " font, the first active of rocking arm
Swing arm is engaged with the working curved surface of the first cam monomer, and the second active swing arm of rocking arm is bent with the work of the second cam monomer
Face is engaged.
Drive axis are driven by using above-mentioned technical proposal, drive mechanism, drives double-track cam to rotate, be on rocking arm
The first active roll arm and the second active roll arm of herringbone arrangement are driven so as to complete cutting knife corresponding actions through double-track cam；
Coordinated using rocking arm and double-track cam, with the compact reliability of cooperation, the small advantage of stable and reliable in work and noise.
Preferably, the first active swing arm and the second active swing arm split is set, and the first active swing arm and second is actively
Swing arm is rotatably provided on support through pivot shaft, and the pivot part of the first active swing arm extends to form the driven swing arm, the
The elastic STATEMENT OF FEDERALLY SPONSORED for driving both contact jaws to close up, the first active swing arm are provided between one active swing arm and the second active swing arm
It is connected through elastic STATEMENT OF FEDERALLY SPONSORED with the second active swing arm.
By using above-mentioned technical proposal, two active swing arms of rocking arm are set using split and are realized through elastic STATEMENT OF FEDERALLY SPONSORED
Linkage, causes that the first active swing arm and the second swing arm are engaged reliability, and rocking arm and drop with double-track cam under the setting
Low double-track cam requirement on machining accuracy, regulation double-track cam reaches double-track cam with rocking arm cooperation reliability when being easy to assembling.
Preferably, the elastic STATEMENT OF FEDERALLY SPONSORED is compression spring, is extended with and slave pendulum in the pivot part of the second active swing arm
The adjutage of arm corresponding matching, compression spring compressed fit is between adjutage and driven swing arm.
By using above-mentioned technical proposal, designed using compression spring, simple structure, reliable operation.
Preferably, the driven swing arm includes driven swing arm main body and blank guard plate, the fixed installation of blank guard plate
In driven swing arm main body, driven swing arm main body is provided with installation axle, and blank guard plate is arranged on driven swing arm main body through installation axle
It is upper rotatable, the safety plug that can be blocked after certain shearing force is born is additionally provided between blank guard plate and driven swing arm main body,
Blank guard plate is constituted and is fixedly mounted in driven swing arm main body through installation axle, safety plug, the footstalk of blank guard plate and cutting knife
It is articulated and connected so as to realize that driven swing arm is articulated with the footstalk of cutting knife.
By using above-mentioned technical proposal, under normal usage, driven swing arm is rigid entirety, realizes that driving is cut
Knife is acted, and when cutting knife stress is excessive, the power between blank guard plate and driven swing arm main body withstands forces more than safety plug, insurance
Pin is blocked under shearing force so that can be relatively rotated between blank guard plate and driven swing arm main body, releases normal biography
It is dynamic, reach protective effect；Blank guard plate is attached through installation axle, and reaching can between blank guard plate and driven swing arm main body
By connection, realize being in connection status between blank guard plate and driven swing arm all the time, it is ensured that reliable operation.
Preferably, the driven shaft works along lateral arrangement and vertical with cutting knife glide direction on the first cam monomer
In the radially outer periphery of the first cam monomer, working curved surface is located at the footpath of the second cam monomer on the second cam monomer for curved surface
To on excircle, drive mechanism includes drive shaft, is connected through spiral beveled wheel auxiliary driving between drive shaft and driven shaft.
By using above-mentioned technical proposal, the mounting arrangements of double-track cam are simple and compact for structure, drive reliable.
Preferably, adjusting part is additionally provided between the driven swing arm and cutting knife, regulation is offered on the footstalk of cutting knife
Groove, adjusting part includes adjusting screw rod and adjusting slider, and adjusting screw rod arranges that adjusting screw rod is can revolve along cutting knife glide direction
On the footstalk of cutting knife, adjusting screw rod passes through the external screw thread bar segment correspondence of regulating tank, adjusting screw rod to exist to the mode location and installation for turning
In regulating tank, adjusting slider is provided with screwed hole, adjusting slider through screwed hole screw thread spinning in the screw thread bar segment of adjusting screw rod,
Adjusting slider location fit coordinates in regulating tank and with regulating tank slide-and-guide, and adjusting slider is provided with connecting shaft, connecting shaft
Upper rotation is provided with connecting plate, and connecting plate is pivotally connected with driven swing arm.
By using above-mentioned technical proposal, adjusting screw rod is rotated, due to the adjusted groove positioning of adjusting slider, so as to drive tune
Section sliding block is slided along regulating tank, realizes the regulation between cutting knife and driven swing arm, it is ensured that be linked reliability.
The utility model is further described below in conjunction with the accompanying drawings.
Brief description of the drawings
Fig. 1 is the utility model specific embodiment cold headers cutoff device structural representation；
Fig. 2 is the structural representation after the utility model specific embodiment cold headers cutoff device omits support；
Fig. 3 is the utility model specific embodiment rocking arm and double-track cam fit structure schematic diagram；
Fig. 4 is the utility model specific embodiment rocking arm and cutting knife fit structure schematic diagram.
Specific embodiment
Referring to accompanying drawing 1 to 4, a kind of cold headers cutoff device disclosed in the utility model, including support 1, cutting knife 2, transmission
Mechanism and drive mechanism, the footstalk straight line sliding of cutting knife 2 coordinate on support 1, and the cutting knife 2 is through transmission mechanism and driving machine
Structure power connector, described transmission mechanism includes rocking arm 3, double-track cam 4 and power transmission shaft 5, and the double-track cam 4 fixes peace
On power transmission shaft 5, double-track cam 4 includes the first cam monomer 41 and the second cam monomer 42 of coaxial and synchronous axial system, passes
Moving axis 5 is connected with drive mechanism, and the middle part of the rocking arm 3 is rotatably provided on support 1 through pivot shaft 30, and rocking arm 3 includes
Driven swing arm 33, the first active swing arm 31 and the second active swing arm 32, the first active swing arm 31 and the second active swing arm 32 are in
" people " font arranges that driven swing arm 33 and the footstalk of cutting knife 2 of rocking arm 3 be articulated and connected, the first active swing arm 31 of rocking arm 3 and the
The working curved surface of one cam monomer 41 is engaged, and the second active swing arm 32 of rocking arm 3 and the work of the second cam monomer 42 are bent
Face is engaged；Usually ensure that the first active swing arm and the second active swing arm coordinate reliable with double-track cam, first actively puts
Roller is set in arm and the second active swing arm.Drive mechanism drives drive axis, drives double-track cam to rotate, and is in people on rocking arm
The first active roll arm and the second active roll arm of font arrangement are driven so as to complete cutting knife corresponding actions through double-track cam；Adopt
Coordinated with rocking arm and double-track cam, with the compact reliability of cooperation, the small advantage of stable and reliable in work and noise.
To cause that rocking arm and double-track cam coordinate reliable, the first active swing arm 31 and the split of the second active swing arm 32 set
Put, the first active swing arm 31 and the second active swing arm 32 are rotatably provided on support 1 through pivot shaft 30, the first active swing arm
31 pivot part extends to form the driven swing arm 33, and driven swing arm 33 can be connected with the first active swing arm 31 through fastener
Connect, or it is welded be fixed as one, or be integrally machined shaping（Overall processing is used in this specific embodiment）；Described first actively puts
It is provided between the active swing arm 32 of arm 31 and second and drives both contact jaws（That is the first active swing arm 31 and the second active swing arm 32
On contact at one end on the working face of double-track cam 4）The elastic STATEMENT OF FEDERALLY SPONSORED closed up, so that the first active swing arm and the second master
Movable pendulum arm can be reliably with double-track cam working curved surface be engaged, the first active swing arm and the second active swing arm are through bullet
Property STATEMENT OF FEDERALLY SPONSORED is connected.Will between the first active swing arm and the second active swing arm using activity set, can reduce rocking arm and
The requirement on machining accuracy of double-track cam, it is ensured that reliable operation；In first cam monomer pushing tow the first active swing arm, driven swing arm
Action completes the driving to cutting knife, while under the effect of elastic STATEMENT OF FEDERALLY SPONSORED, thrust is applied to the second active swing arm, it is ensured that the second master
Movable pendulum arm contacts reliable with the second cam monomer；In second cam monomer pushing tow the second active swing arm, make in elastic STATEMENT OF FEDERALLY SPONSORED
Under, thrust is applied to the first active swing arm, drive the first active swing arm to swing, it is ensured that the first active swing arm and the first cam list
Body coordinates reliable, while so that the slave pendulum arm swing of the first active swing arm connection reaches driving cutting knife.Certainly as this practicality
New feasible scheme, the first active swing arm, the second active swing arm and slave pendulum can be used and be rigidly connected, but so under setting,
Quality of fit requirement is high during to the processing of double-track cam and rocking arm, therefore it is preferred that the first active swing arm and the in this specific embodiment
Set using activity between two active swing arms.
Wherein described elastic STATEMENT OF FEDERALLY SPONSORED is compression spring 34, is extended with and slave pendulum in the pivot part of the second active swing arm 32
The adjutage 35 of the corresponding matching of arm 33, the compressed fit of compression spring 34 is between adjutage 35 and driven swing arm 33.In adjutage
35 are provided with location hole of the spring, and location hole of the spring is designed using blind hole, spring seat board is set in driven swing arm 33, on spring seat board
Spring positioning through hole is provided with, the one end of compression spring 34 is supported in the location hole of the spring of adjutage 35, the other end of compression spring 34
It is placed in spring positioning through hole, the external port screw thread of spring positioning through hole is installed with stop nut 36, and compression spring 34 is connected to
On stop nut 36, facilitate the installation of compression spring, while the spring by screwing in, screwing out the adjustable compression spring of stop nut
Power.Elastic STATEMENT OF FEDERALLY SPONSORED can also be using the design such as torsion spring, extension spring.But preferred compressed spring is set, with simple structure, reliable operation
Advantage.
In this specific embodiment, the driven swing arm 33 includes driven swing arm main body 331 and blank guard plate 332, cuts
Material guard plate 332 is fixedly installed in driven swing arm main body 331, and driven swing arm main body 331 is provided with installation axle 333, blank safety
Plate 332 is arranged on rotatable in driven swing arm main body 331 through installation axle 333, blank guard plate 332 and driven swing arm main body 331
Between be additionally provided with the safety plug 334 that can be blocked after certain shearing force is born, safety plug 334 can be using screw or the bearing pin of polished rod
Deng design, blank guard plate 332 is constituted and is fixedly mounted in driven swing arm main body 331 through installation axle 333, safety plug 334, due to
At least 2 points are locked between blank guard plate and driven swing arm main body so that blank guard plate and driven swing arm main body rigidity
Connection, blank guard plate 332 is articulated and connected so as to realize that driven swing arm 33 is articulated with the footstalk of cutting knife 2 with the footstalk of cutting knife 2.
Under normal usage, driven swing arm is rigid entirety, realizes driving cutting knife action, when cutting knife stress is excessive, blank
Power between guard plate and driven swing arm main body is withstood forces more than safety plug, and safety plug is blocked under shearing force so that cut
Can be relatively rotated between material guard plate and driven swing arm main body, release normal transmission, reach protective effect；Blank guard plate is passed through
Installation axle is attached, and reaches and is reliably connected between blank guard plate and driven swing arm main body, realizes blank guard plate and driven
All the time connection status is between swing arm, it is ensured that reliable operation.
Along lateral arrangement and vertical with cutting knife glide direction, working curved surface sets the driven shaft on the first cam monomer 41
In in the radially outer periphery of the first cam monomer 41, working curved surface is located at the footpath of the second cam monomer 42 on the second cam monomer 42
To on excircle, drive mechanism includes drive shaft 6, is connected through helical offset teeth wheel set 7 between drive shaft 6 and driven shaft 5.
Active spiral beveled wheel is installed in drive shaft 6, driven spiral beveled wheel is set on driven shaft 5, active spiral beveled wheel with it is driven
Spiral beveled wheel engaged transmission.The mounting arrangements of double-track cam are simple and compact for structure, drive reliable.Certain double-track cam can be with
Axial side face is located at using its working curved surface, corresponding power transmission shaft arranged direction is changed, and power transmission shaft is passed with drive shaft power
Pass structure adaptability change, such as chain, V belt translation, or gear drive.
For convenience of the installation between cutting knife and driven swing arm, regulation group is additionally provided between the driven swing arm 33 and cutting knife 2
Part, offers regulating tank 21 on the footstalk of cutting knife 2, and adjusting part includes adjusting screw rod 81 and adjusting slider 82, adjusts spiral shell
Bar 81 arranges that rotatably location and installation on the footstalk of cutting knife 2, is adjusted adjusting screw rod 81 along the glide direction of cutting knife 2
Screw rod 81 passes through regulating tank 21, and in regulating tank 21, adjusting slider 82 is provided with spiral shell to the external screw thread bar segment correspondence of adjusting screw rod 81
Pit 821, adjusting slider 82 through screwed hole screw thread spinning in the screw thread bar segment of adjusting screw rod 81, the location fit of adjusting slider 82
Coordinate in regulating tank 21 and with the slide-and-guide of regulating tank 21, adjusting slider 82 is provided with connecting shaft 83, connecting shaft 83 and regulation
Sliding block 82 can also use separately machined close-fitting using overall processing shaping（Machine-shaping is integrated in this specific embodiment）, even
In spindle 83 rotate be provided with connecting plate 84, connecting plate 84 is pivotally connected with driven swing arm 33, in this specific embodiment connecting plate 84 with
Blank guard plate 332 is hinged.Rotation adjusting screw rod, due to the adjusted groove positioning of adjusting slider, so as to drive adjusting slider along tune
Section groove is slided, and realizes the regulation between cutting knife and driven swing arm, it is ensured that be linked reliability.
Claims (6)
1. a kind of cold headers cutoff device, including support, straight line sliding coordinates cutting knife on support, transmission mechanism and driving
Mechanism, the cutting knife is through transmission mechanism and drive mechanism power connector, it is characterised in that：Described transmission mechanism is included and shaken
Arm, double-track cam and power transmission shaft, the double-track cam are fixedly mounted on power transmission shaft, and double-track cam includes coaxial and synchronous turn
Dynamic the first cam monomer and the second cam monomer, power transmission shaft is connected with drive mechanism, and the rocking arm middle part is through pivot shaft
Be rotatably provided on support, rocking arm include driven swing arm, the first active swing arm and the second active swing arm, the first active swing arm and
Second active swing arm arranges that driven swing arm and the footstalk of cutting knife of rocking arm are articulated and connected in " people " font, the first active of rocking arm
Swing arm is engaged with the working curved surface of the first cam monomer, and the second active swing arm of rocking arm is bent with the work of the second cam monomer
Face is engaged.
2. cold headers cutoff device according to claim 1, it is characterised in that：The first active swing arm and second is actively put
Arm split is set, and the first active swing arm and the second active swing arm are rotatably provided on support through pivot shaft, and first actively puts
The pivot part of arm extends to form the driven swing arm, is provided between the first active swing arm and the second active swing arm and drives both connect
The elastic STATEMENT OF FEDERALLY SPONSORED that contravention closes up, the first active swing arm and the second active swing arm are connected through elastic STATEMENT OF FEDERALLY SPONSORED.
3. cold headers cutoff device according to claim 2, it is characterised in that：The elastic STATEMENT OF FEDERALLY SPONSORED is compression spring,
The pivot part of the second active swing arm is extended with the adjutage with driven swing arm corresponding matching, and compression spring compressed fit is in adjutage
And driven swing arm between.
4. the cold headers cutoff device according to claim 1 or 2 or 3, it is characterised in that：The driven swing arm includes slave pendulum
Arm main body and blank guard plate, blank guard plate are fixedly installed in driven swing arm main body, and driven swing arm main body is provided with installation
Axle, blank guard plate is arranged on rotatable in driven swing arm main body through installation axle, between blank guard plate and driven swing arm main body
The safety plug that can be blocked after certain shearing force is born is additionally provided with, blank guard plate constitutes fixed installation through installation axle, safety plug
In driven swing arm main body, blank guard plate is articulated and connected so as to realize that driven swing arm is articulated with the axle of cutting knife with the footstalk of cutting knife
On handle.
5. the cold headers cutoff device according to claim 1 or 2 or 3, it is characterised in that：The driven shaft is along lateral arrangement
And it is vertical with cutting knife glide direction, working curved surface is located in the radially outer periphery of the first cam monomer on the first cam monomer, the
In the radially outer periphery of the second cam monomer, drive mechanism includes drive shaft, drive shaft to working curved surface on two cam monomers
Connected through spiral beveled wheel auxiliary driving and driven shaft between.
6. the cold headers cutoff device according to claim 1 or 2 or 3, it is characterised in that：Between the driven swing arm and cutting knife
Adjusting part is additionally provided with, regulating tank is offered on the footstalk of cutting knife, adjusting part includes adjusting screw rod and adjusting slider, adjusts
Section screw rod arranges that rotatably location and installation on the footstalk of cutting knife, adjusts spiral shell to adjusting screw rod along cutting knife glide direction
Bar passes through regulating tank, and in regulating tank, adjusting slider is provided with screwed hole, adjusting slider to the external screw thread bar segment correspondence of adjusting screw rod
Through screwed hole screw thread spinning in the screw thread bar segment of adjusting screw rod, adjusting slider location fit is slided in regulating tank and with regulating tank
Action-oriented coordinates, and adjusting slider is provided with connecting shaft, is rotated in connecting shaft and is provided with connecting plate, connecting plate and driven swing arm pivot
Connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621366601.5U CN206253577U (en) | 2016-12-13 | 2016-12-13 | Cold headers cutoff device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621366601.5U CN206253577U (en) | 2016-12-13 | 2016-12-13 | Cold headers cutoff device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206253577U true CN206253577U (en) | 2017-06-16 |
Family
ID=59029228
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621366601.5U Active CN206253577U (en) | 2016-12-13 | 2016-12-13 | Cold headers cutoff device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206253577U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107790607A (en) * | 2017-12-08 | 2018-03-13 | 浙江东明不锈钢制品股份有限公司 | A kind of upsetter |
| CN108465727A (en) * | 2018-03-30 | 2018-08-31 | 平湖市钱江机械制造有限公司 | A kind of guide rail knife plate material cutting mechanism for processing round bar |
| CN114472794A (en) * | 2022-02-25 | 2022-05-13 | 湖北省腾丰机械科技有限公司 | Novel die opening and closing trimming device of cold header |
-
2016
- 2016-12-13 CN CN201621366601.5U patent/CN206253577U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107790607A (en) * | 2017-12-08 | 2018-03-13 | 浙江东明不锈钢制品股份有限公司 | A kind of upsetter |
| CN108465727A (en) * | 2018-03-30 | 2018-08-31 | 平湖市钱江机械制造有限公司 | A kind of guide rail knife plate material cutting mechanism for processing round bar |
| CN114472794A (en) * | 2022-02-25 | 2022-05-13 | 湖北省腾丰机械科技有限公司 | Novel die opening and closing trimming device of cold header |
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