CN109333413A - A kind of fixture - Google Patents
A kind of fixture Download PDFInfo
- Publication number
- CN109333413A CN109333413A CN201811505396.XA CN201811505396A CN109333413A CN 109333413 A CN109333413 A CN 109333413A CN 201811505396 A CN201811505396 A CN 201811505396A CN 109333413 A CN109333413 A CN 109333413A
- Authority
- CN
- China
- Prior art keywords
- screw rod
- annulus
- nut head
- annular groove
- shape annular
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
Abstract
The invention belongs to processing technique field more particularly to a kind of fixtures, it includes the first screw rod, multiple hold-down mechanisms, mobile mechanism, telescoping mechanism and the first nut head, and wherein telescoping mechanism is installed between first screw rod and first nut head；Liang Ge mobile mechanism is installed on the first screw rod, and Liang Ge mobile mechanism is distributed along the axis of the first screw rod；Liang Ge mobile mechanism is symmetrically distributed on the first screw rod；The circumferentially uniform outside for being distributed in the first screw rod of three hold-down mechanisms, and three hold-down mechanisms are connect with Liang Ge mobile mechanism；Fixture in the present invention, which has, increases the area that fixture pressure workpiece is pressed; so that in the case where clamp pressing power is constant; achieve the purpose that increase clamp workpieces processing surface area, so that the pressure that fixture is contacted with workpieces processing reduces, reaches the purpose on protection workpieces processing surface.
Description
Technical field
The invention belongs to processing technique field more particularly to a kind of fixtures.
Background technique
Current existing clamp structure is simple, and fixture and structure at workpieces processing contact position are simple, in order to add in workpiece
The movement that workpiece is prevented during work, often by screw tightening, so that at fixture and the contact position of workpieces processing
Active force is larger, this active force will be tightly pressed on workpiece, so that the surface to workpiece leaves impression, if workpiece is hard
When spending not high, fixture is smaller to the compression area of workpiece, and the pressure being subject on the unit area of workpieces processing at this time is big, thus right
The injury of workpiece surface is also larger, so the fixture for designing a kind of adjustable protection workpiece machined surface of clamping force is that have very much must
It wants.
Summary of the invention
The embodiment of the invention provides a kind of fixture, can prevent from damaging the surface of workpieces processing.
The embodiment of the present invention provides a kind of fixture, including the first screw rod, hold-down mechanism, mobile mechanism, the first nut head, stretches
Contracting mechanism, the telescoping mechanism are connected between first nut head and first screw rod, and two mobile mechanisms are equal
It is mounted on first screw rod, and Liang Ge mobile mechanism is distributed along the axis of the first screw rod；Liang Ge mobile mechanism is symmetrical
On the first screw rod；Three hold-down mechanisms are distributed in the outside of the first screw rod, three hold-down mechanisms with two moving machines
Structure connection；
The mobile mechanism includes fixed ring, C-shaped ring, the second nut head, the first stop collar, the second stop collar, universal joint
Mechanism, the first T shape annular groove, the 2nd T shape annular groove, wherein cating nipple is mounted on the first screw rod；It is provided in second nut head
2nd T shape annular groove；The circular hole of perforation is provided on second nut end surface；Second nut head pass through the circular hole opened thereon with it is universal
Section mechanism is fitted on the first screw rod；C-shaped ring inner headed face upper and lower ends are separately installed with the first stop collar and the second limit
Ring；C-shaped ring is mounted in the second nut head by the second stop collar and the 2nd being rotatably assorted for T shape annular groove；Outside the fixed ring
The first T shape annular groove is provided on disc；The fixed ring is mounted on C by the first stop collar and the first being rotatably assorted for T shape annular groove
On shape ring, and the fixed ring is nested on the outside of the first screw rod, and the fixed ring is opened on the end face far from second nut head
Equipped with three the 3rd T shape annular grooves around first screw rod setting；
The hold-down mechanism includes third nut head, first connecting rod, the second screw rod, movable block, the second connecting rod, first
Trunnion, the second trunnion, third trunnion, the 4th nut head, threaded hole, first trunnion lower end is provided with the first sliding block, described
First sliding block be set on the fixed ring upper surface that first screw axis direction is located in the mobile mechanism of upside one
A 3rd T shape annular groove matches；The upper end of second trunnion is provided with the second sliding block, first sliding block be set to
First screw axis direction is located at a 3rd T shape annular groove on the fixed ring lower end surface in the mobile mechanism of downside
It matches；The third trunnion is fixed on one side of the movable block；The first connecting rod and second connection
One end of bar is flexibly connected by straight pin with the third trunnion, the first connecting rod and second connecting rod it is another
End is flexibly connected by straight pin with first trunnion and the second trunnion respectively, and first sliding block and the second sliding block are right at its
Sliding in the 3rd T shape annular groove answered；The threaded hole of perforation is provided on the movable block end face；Second screw rod passes through outer spiral shell thereon
Line and threaded hole are fitted on movable block；Third nut head and the 4th is separately installed on the both ends end face of second screw rod
Nut head.
Further, the cating nipple includes the first annulus, the second annulus, first rotating shaft, third annulus, second turn
Axis is wherein provided with internal screw thread on third annulus inner headed face；Third annulus passes through institute on the internal screw thread and the first screw rod opened thereon
The external screw thread opened is mounted on the first screw rod by being threadedly engaged；Second annulus passes through two first turns be on same straight line
Axis is mounted on third annulus, and the second annulus is nested on the outside of third annulus；First annulus is in same straight line by two
On the second shaft be mounted on the second annulus, and the first annulus is nested on the outside of the second annulus；The line of two the second shafts
It is orthogonal with the line of two first rotating shafts.
Further, multiple convex blocks are installed on end face of the 4th nut head far from the second screw rod.
Further, the material that multiple convex blocks are equipped on end face of the 4th nut head far from the second screw rod is rubber
Glue.
Further, the telescoping mechanism includes electric telescopic rod, controller and control switch, the electric telescopic rod
Output shaft is fixedly connected with first screw rod, and the control switch and the controller are electrically connected, and the control switch is used
In sending climb command or decline instruction to the controller, the controller is according to the climb command or decline instruction control
The electric telescopic rod elongation is shunk.
Further, the telescoping mechanism includes the casing with upper and lower opening, adjustable spring, bearing plate and mobile group
Part, wherein the bearing plate is collar plate shape, and the outer diameter of the bearing plate is less than or equal to the internal diameter of described sleeve pipe；Described sleeve pipe
Lower end be fixedly connected with first nut head, the moving assembly includes swivel becket, connecting rod and sliding shoe；The set
The sliding slot to match with the connecting rod is offered on the side wall of pipe, the sliding slot extends upwardly to close from described sleeve pipe bottom
Position at the top of described sleeve pipe；Multiple card slots communicated with the sliding slot are also provided on the side wall of described sleeve pipe, it is multiple described
Card slot is alternatively arranged along the direction of the sliding slot；The bottom of first screw rod is provided with the company that outer diameter is less than first screw rod
Socket part, first screw rod are fixedly connected by the interconnecting piece with the top surface of the bearing plate, the bottom surface of the bearing plate with
One end of the adjustable spring is fixedly connected, and the other end of the adjustable spring is fixedly connected with first nut head；It is described
The outer peripheral surface of interconnecting piece is provided with the swivel becket with interconnecting piece rotation connection, described connecting rod one end and the rotation
The lateral wall of ring is fixedly connected, and the other end of the connecting rod passes through the sliding slot or the card slot and the fixed company of the sliding shoe
It connects.
Further, the perforation circular hole inner headed face opened in the periphery of first annulus and the second nut head passes through key
It is coupled.
Further, first annulus, the second annulus, the thickness of third annulus are all the same.
Further, lubricating oil, the second stop collar and the 2nd T are coated between first stop collar and the first T shape annular groove
Lubricating oil is coated between shape annular groove.
Further, first screw rod is divided into top and lower part, and the top of first screw rod has the first screw thread, institute
The lower part for stating the first screw rod has the second screw thread, and the hand of spiral of first screw thread and second screw thread is on the contrary, described the
One screw thread and second screw thread are symmetrically distributed on first screw rod.
It is appreciated that the fixture in the present invention, which has, increases what fixture pressure workpiece was pressed relative to traditional clamp technology
Area, so that achieve the purpose that increase clamp workpieces processing surface area in the case where clamp pressing power is constant,
So that the pressure that fixture is contacted with workpieces processing reduces, the purpose on protection workpieces processing surface is reached.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below to needed in embodiment description
Attached drawing is briefly described, it should be apparent that, drawings in the following description are some embodiments of the invention, general for this field
For logical technical staff, without creative efforts, it is also possible to obtain other drawings based on these drawings.
It constitutes a part of attached drawing of the invention to be used to provide further understanding of the present invention, schematic implementation of the invention
Example and its specification are used to explain the present invention, and do not constitute the improper restriction to not allowing you to invent.
Fig. 1 is global facility distribution schematic diagram；
Fig. 2 is hold-down mechanism and mobile mechanism's mounting structure schematic diagram；
Fig. 3 is first connecting rod and the second connecting rod mounting structure schematic diagram；
Fig. 4 is the first support lug structure schematic diagram；
Fig. 5 is mobile mechanism's structural schematic diagram；
Fig. 6 is C-shaped ring structural schematic diagram；
Fig. 7 is fixed ring structural schematic diagram；
Fig. 8 is the second nut head structural schematic diagram；
Fig. 9 is first rotating shaft mounting structure schematic diagram；
Figure 10 is cating nipple mounting structure schematic diagram；
Figure 11 is telescoping mechanism structural perspective；
Figure 12 is telescoping mechanism structural representation；
Figure 13 is cannula structure schematic diagram；
Figure label title: 1, the first screw rod；2, hold-down mechanism；3, mobile mechanism；4, the first nut head；5, third nut
Head；9, the first trunnion；10, first connecting rod；11, the second screw rod；12, the second trunnion；13, movable block；14, the second connecting rod；
15, third trunnion；16, the 4th nut head；17, threaded hole；18, fixed ring；19, C-shaped ring；20, the second nut head；21, first
Stop collar；22, the second stop collar；23, the first annulus；24, the second annulus；25, first rotating shaft；26, third annulus；27, second
Shaft；28, the first T shape annular groove；29, the 2nd T shape annular groove；30, cating nipple；31, the 3rd T shape annular groove；32, the first sliding block；
33, the second sliding block.
Specific embodiment
It is clear in order to be more clear the purpose of the present invention, technical solution and advantageous effects, below in conjunction with this hair
Attached drawing in bright embodiment, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described
Embodiment is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field
Those of ordinary skill's every other embodiment obtained without making creative work, belongs to protection of the present invention
Range.
It should be understood that in the absence of conflict, the feature in embodiment and embodiment in the present invention can be combined with each other.
It should be noted that it can be directly to separately when a device is considered as " connection " another device
One device may be simultaneously present device placed in the middle.Term as used herein " upward " " downward " "horizontal", " spacing ", with
And similar statement is for illustrative purposes only.
Unless otherwise defined, all technical and scientific terms used herein and belong to technical field of the invention
The normally understood meaning of technical staff is identical.Term as used herein in the specification of the present invention is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term as used herein "or" includes one or more related
Listed item any and all combinations.
In the description of the present invention, it is to be understood that, the orientation or positional relationship of the instructions such as term " center " be based on
Orientation or positional relationship shown in the drawings, is merely for convenience of description of the present invention and simplification of the description, rather than indication or suggestion institute
The device or element of finger must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as to this hair
Bright limitation.In addition, term " first ", " second ", " third ", " the 4th " etc. are used for description purposes only, and should not be understood as referring to
Show or imply relative importance or implicitly indicates the quantity of indicated technical characteristic." first ", " are defined as a result,
Two ", the feature of " third ", " the 4th " etc. can explicitly or implicitly include one or more of the features.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " rotation " " connects
Connect " it shall be understood in a broad sense, for example, it may be being fixedly connected, it may be a detachable connection, or connection；It can be mechanical connection,
It is also possible to be electrically connected；It can be directly connected, can also can be inside two elements indirectly connected through an intermediary
Connection.For the ordinary skill in the art, the tool of above-mentioned term in the present invention can be understood by concrete condition
Body meaning.
As shown in Figure 1, the present invention provides a kind of fixture, including the first screw rod 1, multiple hold-down mechanisms 2, Liang Ge mobile mechanism
3, the first nut head 4 and the telescoping mechanism 6, wherein the telescoping mechanism 6 is connected to first nut head 4 and described
Between one screw rod 1, the hold-down mechanism 2 is for compressing workpiece to be processed；Two mobile mechanisms 3 are installed in described first
On screw rod, and Liang Ge mobile mechanism 3 is distributed along the axis of the first screw rod；Liang Ge mobile mechanism 3 is symmetrically distributed in the first screw rod 1
On；Three hold-down mechanisms 2 are distributed in the outside of the first screw rod 1, and three hold-down mechanisms 2 are connect with Liang Ge mobile mechanism 3；
As shown in Figure 1, further, first nut head 4 in the fixture provided by the invention as support and
Equalizing feature, material can be for metal, alloys etc., and the shape that first nut head be parallel to the plane on horizontal line can be with
For round, hexagon or triangle.In the present embodiment, in order to keep the fixture more firm, first nut head 4
The shape for being parallel to the plane on horizontal line is hexagon.
In an embodiment of the present invention, first screw rod 1 divides for top and lower part, the top tool of first screw rod 1
There is the first screw thread, the lower part of first screw rod 1 has the second screw thread, the screw thread side of first screw thread and second screw thread
To on the contrary, first screw thread and second screw thread are symmetrically distributed on first screw rod 1, two mobile mechanisms 3
It is located at top and corresponding first screw rod of second screw thread of corresponding first screw rod 1 of first screw thread
1 lower part, and moved on first screw rod along first screw thread and second screw thread respectively, when Liang Ge mobile mechanism
When 3 the first screw motion described in identical external force lower edge, one of mobile mechanism 3 moves downwards a certain distance,
Another described mobile mechanism 3 is moved upward identical distance.Three hold-down mechanisms 2 are circumferentially uniform to be distributed in first
The outside of screw rod 1, and three hold-down mechanisms 2 are connect with Liang Ge mobile mechanism 3.
As shown in figure 5, the mobile mechanism 3 includes fixed ring 18, C-shaped ring 19, the second nut head 20, the first stop collar
21, the second stop collar 22, cating nipple 30, the first T shape annular groove 28, the 2nd T shape annular groove 29 and the 3rd T shape annular groove 31；Such as Fig. 1
And shown in Fig. 2, the cating nipple 30 is mounted on first screw rod 1；As shown in figure 8, in second nut head 20
It is provided with the 2nd T shape annular groove 29, the circular hole of perforation is provided on 20 end face of the second nut head；As shown in Figures 1 and 2, the second spiral shell
Female 20 passes through the circular hole opened thereon and cating nipple 30 is fitted on the first screw rod 1, further, described first
The perforation circular hole inner headed face opened on the periphery of annulus 23 and the second nut head 20 is coupled by key；As shown in fig. 6, institute
It states 19 inner headed face upper and lower ends of C-shaped ring and is separately installed with the first stop collar 21 and the second stop collar 22；As shown in figure 5, the C-shaped
Ring 19 is mounted in the second nut head 20 by the second stop collar 22 and being rotatably assorted for the 2nd T shape annular groove 29；As shown in fig. 7,
The first T shape annular groove 28 is provided on 18 periphery of fixed ring；As shown in figure 5, the fixed ring 18 passes through the first stop collar 21
It is mounted in C-shaped ring 19 with the first being rotatably assorted for T shape annular groove 28, and fixed ring 18 is nested in 1 outside of the first screw rod, needs to infuse
Meaning, the fixed ring 18 are not connected to first screw rod 1；46 inner headed face of mounting ring is fixedly mounted on fixed ring 18
On inner headed face.It is to be appreciated that the C-shaped ring 19 works as institute for connecting second nut head 20 and the fixed ring 18
When stating the rotation of the second nut head 20, the C-shaped ring 19 not will drive the fixed ring 18 and rotate, in order to reduce the C-shaped ring
Frictional force between 19 and the fixed ring prevents the C-shaped ring 19 from the fixed ring 18 being driven to rotate, it is preferred that in order to anti-
Lubricating oil, the second stop collar 22 and the 2nd T shape annular groove are only coated between first stop collar 21 and the first T shape annular groove 28
Lubricating oil is coated between 29.It is appreciated that when operator drives two the second nut heads by using tool with identical external force
20 when moving simultaneously, since first screw rod 1 has contrary the first screw thread and the second screw thread, described two nut heads
For 20 direction of motion always on the contrary, the second nut head 20 of movement will will drive the first annulus 23 and move, the first annulus 23 will
The second shaft 27 is driven to move, the second shaft 27 will will drive the second annulus 24 and move, and the second annulus 24 will will drive first turn
Axis 25 moves, and first rotating shaft 25 will will drive the first annulus 23 and move, and the first annulus 23 will be moved along the first screw rod 1, movement
The second nut head 20 will be moved along the axis direction of the first screw rod 1；Second nut head 20 of movement is axial along the first screw rod 1
Movement will will drive the second stop collar 22 and be axially moved along the first screw rod 1；Second stop collar 22 of movement is along first screw rod 1
Axial movement will will drive C-shaped ring 19 and be axially moved along the first screw rod 1, and the C-shaped ring 19 of movement will will drive the first stop collar 21
It is axially moved along the first screw rod 1, the first stop collar 21 will will drive fixed ring 18 and be axially moved along the first screw rod 1, the fixation
Ring 18 will will drive 3 hold-down mechanisms 2 and move, wherein since first screw rod 1 has contrary the first screw thread and the
Two screw threads, the first screw thread and second screw thread are symmetrically distributed on first screw rod 1, therefore, two mobile mechanisms 3
It can be moved, and then may be implemented pair with respect to or along the direction that mutually deviates from first screw rod 1 with identical speed
Vertical range between the hold-down mechanism 2 and the center line of first screw rod 1 is adjusted, it will be understood that the application's
Fixture is adjusted the vertical range between the hold-down mechanism 2 and the center line of first screw rod 1 by realizing, in turn
The processing tool of different shape and size can be adjusted.
Further, as shown in Figure 1 to Figure 3, it is opened up on end face of the fixed ring 18 far from second nut head 20
There are three the 3rd T shape annular grooves 31 around first screw rod 1 setting；In the present embodiment, due to folder proposed by the present invention
There are two mobile mechanisms 3 for tool tool, and the corresponding fixed ring 18 of each mobile mechanism 3, two fixed rings 18 are described first
It is oppositely arranged, therefore is respectively provided on the opposite face of the fixed ring 18 there are three the 3rd T shape annular groove 31 on screw rod 1, described in three
3rd T shape sliding slot 31 is not connected, and each 3rd T shape sliding slot is correspondingly connected with a hold-down mechanism 2.
Further, continue as shown in Figure 1 to Figure 3, the hold-down mechanism 2 includes third nut head 5, first connecting rod
10, the second screw rod 11, movable block 13, the second connecting rod 14, the first trunnion 9, the second trunnion 12, third trunnion 13, the 4th nut
First 5, threaded hole 17, as shown in figure 4,9 lower end of the first trunnion is provided with the first sliding block 32, first sliding block 32 and setting
In the 3rd T on 18 upper surface of fixed ring in the mobile mechanism 3 that 1 axis direction of the first screw rod is located at upside
Shape annular groove 31 matches；As shown in figure 3, the upper end of second trunnion 12 is provided with the second sliding block 32, first sliding block 32
With an institute being set on 18 lower end surface of fixed ring that 1 axis direction of the first screw rod is located in the mobile mechanism 3 of downside
The 3rd T shape annular groove 31 is stated to match；The third trunnion 15 is fixed on one side of the movable block 13；Described first connects
One end of extension bar 10 and second connecting rod 14 is flexibly connected by straight pin with the third trunnion 15, first connection
Bar 10 and the other end of second connecting rod 14 pass through straight pin and first trunnion 9 and 14 activity of the second trunnion even respectively
It connects, first sliding block 32 and the second sliding block 33 slide in its corresponding 3rd T shape annular groove 31；On 13 end face of movable block
It is provided with the threaded hole 17 of perforation；As shown in Figures 2 and 3, the cooperation that the second screw rod 11 passes through external screw thread and threaded hole 17 thereon
It is mounted on movable block 13；Third nut head 5 and the 4th nut head 16 are separately installed on the both ends end face of second screw rod 11.
It is appreciated that operator can be rotated by driving third nut head 5, rotation when needing workpiece pressing
Third nut head 5 will will drive the second screw rod 11 and move, the second screw rod 11 will will drive the 4th nut head 16 and move, at this time
4th nut head 16 will compacting processing workpiece so that the fixture in the present invention can reach while can clamping workpiece again
To the purpose of protection workpiece institute clamp surface, in the present embodiment, in order to increase clamping force and holding area, further, institute
It states and multiple convex blocks is installed on end face of the 4th nut head 16 far from the second screw rod 11, the 4th nut head 16 is far from the second spiral shell
The material that multiple convex blocks are equipped on the end face of bar 11 is rubber.It should also be noted that, first sliding block 32 is in the case where being located at
Sliding in the 3rd T shape annular groove 31 in the fixed ring 18 of side, three the first sliding blocks 32 of three hold-down mechanisms 2 are in place respectively
It is slided in three the 3rd T shape annular grooves 31 in the fixed ring 18 of downside, second sliding block 33 is in the fixed ring for being located at upside
Sliding in the 3rd T shape annular groove 31 on 18, three the first sliding blocks 32 of three hold-down mechanisms 2 are in the fixed ring for being located at upside
The side of sliding in three the 3rd T shape annular grooves 31 on 18, first sliding block 32 and second sliding block 33 is cambered surface, and with
The 3rd T shape annular groove 31 matches, and the upper surface and lower end surface of first sliding block 32 and second sliding block 33 are flat
Face.It is appreciated that being equipped with by above-mentioned first sliding block 32, second sliding block 33 and the 3rd T shape sliding slot 31, it can
So that three hold-down mechanisms 2 are rotated around first screw rod, and then it is adapted to the surface of workpiece of different shapes.
As shown in Figure 11 to Figure 13, in some embodiments of the invention, the telescoping mechanism 6 includes having to open above and below
Casing 61, adjustable spring 46, bearing plate 62 and the moving assembly 63 that mouth and upper and lower opening are connected, wherein the bearing plate 62
For collar plate shape, the outer diameter of the bearing plate 62 is less than or equal to the internal diameter of described sleeve pipe；The lower end of described sleeve pipe 61 and described the
One nut head 4 is fixedly connected, and the moving assembly 63 includes swivel becket 631, connecting rod 632 and sliding shoe 633；Described sleeve pipe
The sliding slot 611 to match with the connecting rod 632 is offered on 61 side wall, the sliding slot 611 is the sliding slot on vertical direction
611, the sliding slot 611 extends upwardly to the position close to 61 top of described sleeve pipe from 61 bottom of described sleeve pipe；Described sleeve pipe 61
Side wall on be also provided with multiple card slots 612 communicated with the sliding slot 611, multiple card slots 612 are along the sliding slot 611
Direction is alternatively arranged；The bottom of first screw rod 1 is provided with interconnecting piece a of the outer diameter less than first screw rod 1, and described first
Screw rod 1 is fixedly connected by the interconnecting piece a with the top surface of the bearing plate 62, and the bottom surface of the bearing plate 62 is stretched with described
One end of spring 46 is fixedly connected, and the other end of the adjustable spring 46 is fixedly connected with first nut head 4；The connection
The outer peripheral surface of portion a be provided with the interconnecting piece a rotation connection the swivel becket 631, described 632 one end of connecting rod with it is described
The lateral wall of swivel becket 631 is fixedly connected, the other end of the connecting rod 632 pass through the sliding slot 611 or the card slot 612 with
The sliding shoe 633 is fixedly connected；It is understood that the bearing plate 62 is fixed on described the by the adjustable spring 46
The upper surface of one nut head, the lower surface of the bearing plate 62 are fixedly connected with the interconnecting piece a of first screw rod, the rotation
Ring 631 be set in the interconnecting piece a outer surface and the interconnecting piece a be rotatablely connected, described 632 one end of connecting rod with described turn
The lateral wall of rotating ring 631 is fixedly connected, and the other end of the connecting rod 632 passes through the sliding slot 611 or the card slot 612 and institute
It states sliding shoe 633 to be fixedly connected, when needing realization to be adjusted the height of first screw rod 1, grasps the cunning
Motion block 633 and force apply the sliding shoe 633 upwardly or downwardly to the bearing plate 62 by the connecting rod 632
Power, and then make to stretch on the adjustable spring 46 or lower contracting, while the bearing plate 62 drives the connecting rod 632 in the sliding slot
It is slided up and down in 611, until the height of first screw rod 1 is adjusted to object height, then rotates the sliding shoe 633,
So that the sliding shoe 633 and the connecting rod 632 are caught in the card slot 612, to realize to 62 height of bearing plate
It is fixed, and then realize the fixation to 1 height of the first screw rod.It is appreciated that passing through the telescoping mechanism 6, Ke Yishi
Now to the variation of 1 height of the first screw rod, the hold-down mechanism 2 is adjusted to the pressing force of the workpiece to be processed.
Further, in the present embodiment, the quantity of the card slot 612 is 10, certainly, the number of the card slot 612
Amount can increase or decrease, and be required with specific reference to the degree of regulation to 1 height of the first screw rod to determine.More specifically, in order to
Realize the card slot 612 to the good fixed function of the sliding shoe 633,10 card slots 612 include 5 the first card slots and
5 the second card slots, 5 first card slots are located at the upper area of 61 side wall of described sleeve pipe, and 5 second card slots are located at institute
The lower area of 61 side wall of casing is stated, 10 card slots 612 are located at the same side of the sliding slot 611 and are arranged as one directly
Line, first card slot include being connected to the sliding slot 611 and the first vertical slot and bottom lead to repeatedly with first slot
The second slot, second card slot includes being connected to the sliding slot 611 and vertical third slot and top and the third slot
4th slot of connection.It should be noted that in the present embodiment, the adjustable spring 46 (is neither located under natural conditions
Be not at the state of compression again in stretching) level height be located at first card slot and second card slot level height it
Between, when the adjustable spring 46 compression, the connecting rod 632 is stuck in the 4th slot of second card slot and with described second
The top of slot abuts, when the adjustable spring 46 stretches, the connecting rod 632 be stuck in the second slot of first card slot and
It is abutted with the bottom of second slot.
Further, in order to avoid when the connecting rod 632 is stuck in the card slot 612, the bearing plate 62 is uneven
Weighing apparatus, causes first screw rod 1 is unbalanced to happen, it is preferred that the quantity of the sliding slot 611 can be 2, described in two
Sliding slot 611 can be oppositely arranged in 61 side of described sleeve pipe, corresponding, and the quantity of the card slot 612 can be 20, i.e., each
Corresponding 10 card slots 612 of the sliding slot 611, corresponding, the quantity of the moving assembly 63 can be 2.
Further, described first screw rod, 1 one end is fixedly mounted on the upper table of the bearing plate 62 by the interconnecting piece a
Mian Shangliangge mobile mechanism 3 is installed on the first screw rod 1, and Liang Ge mobile mechanism 3 is distributed along the axis of the first screw rod 1.
Further, in other embodiments of the invention, the telescoping mechanism 6 further includes electric telescopic rod, control
Device and control switch, the output shaft of the electric telescopic rod are fixedly connected with first screw rod, the control switch with it is described
Controller is electrically connected, and the control switch is for sending climb command or decline instruction to the controller, the controller
The electric telescopic rod elongation is controlled according to the climb command or decline instruction or is shunk.
As shown in figure Fig. 9 and Figure 10, the cating nipple 30 includes the first annulus 23, the second annulus 24, first rotating shaft
25, third annulus 26, the second shaft 27 are wherein provided with internal screw thread on 26 inner headed face of third annulus；Third annulus 26 is by thereon
The external screw thread opened on the internal screw thread and the first screw rod 1 opened is mounted on the first screw rod 1 by being threadedly engaged；Second annulus 24
It is mounted on third annulus 26 by two first rotating shafts 25 on same straight line, and the second annulus 24 is nested in third circle
26 outside of ring；First annulus 23 is mounted on the second annulus 24 by two the second shafts 27 on same straight line, and the
One annulus 23 is nested in 24 outside of the second annulus；The line of two the second shafts 27 hangs down mutually with the line of two first rotating shafts 25
Directly；Preferably, in order to improve the reliability and uniformity of the fixture, further, first annulus 23, the second annulus
24, the thickness of third annulus 26 is all the same.
A specific embodiment of the invention are as follows: when the fixture in the present invention will clamping machining workpiece when；Operator passes through
When driving two the second nut heads 20 to move simultaneously with identical external force using tool, two 20 relative motions of the second nut head,
Second nut head 20 of movement will will drive the first annulus 23 and move, and the first annulus 23 will will drive the second shaft 27 and move, the
Two shafts 27 will will drive the second annulus 24 and move, and the second annulus 24 will will drive first rotating shaft 25 and move, and first rotating shaft 25 will
It will drive the movement of the first annulus 23, the first annulus 23 will move along the first screw rod 1, and the second nut head 20 of movement will be along the
The axis direction of one screw rod 1 moves；Second nut head 20 of movement will will drive the second stop collar along the axial movement of the first screw rod 1
22 are axially moved along the first screw rod 1；Second stop collar 22 of movement will will drive C-shaped ring along first screw rod 1 axial movement
19 are axially moved along the first screw rod 1, and the C-shaped ring 19 of movement will will drive the first stop collar 21 and be axially moved along the first screw rod 1, the
One stop collar 21 will will drive fixed ring 18 and be axially moved along the first screw rod 1, and fixed ring 18 will will drive 3 hold-down mechanisms 2 and transport
It is dynamic, wherein since first screw rod 1 has contrary the first screw thread and the second screw thread, the first screw thread and described second
Screw thread is symmetrically distributed on first screw rod 1, and therefore, two mobile mechanisms 3 can be with identical speed described first
It moves, and then may be implemented to the hold-down mechanism 2 and first spiral shell with respect to or along the direction that mutually deviates from screw rod 1
Vertical range between the center line of bar 1 is adjusted, and moves the hold-down mechanism 2 in the horizontal direction, and then make the pressure
Tight mechanism 2 is vertically aligned the processing stand of workpiece to be processed.Then, operator adjusts institute by the telescoping mechanism 6
The level height of the first screw rod 1 is stated, and then keeps the hold-down mechanism 2 vertically moving, until compressing workpiece to be processed；When
When the plane of workpieces processing is uneven, operator at this time carries out driving third nut head 5 and rotates, the third nut head of rotation
5, which will will drive the second screw rod 11, moves, and the second screw rod 11 will will drive the 4th nut head 16 and move, the 4th nut head 16 at this time
Will compacting processing workpiece so that the fixture in the present invention can achieve again while can clamping workpiece protection workpiece institute
The purpose of clamp surface；When needing to adjust the position of the 4th nut head 16 clamping workpiece, operator can make described first
Sliding block 32 and second sliding block 33 are slided in the 3rd T shape annular groove, and then are adjusted the 4th nut head 16 and clamped
The position of workpiece, to adapt to different workpiece.
In conclusion it is restricted embodiment of the invention, all those skilled in the art that above embodiment, which is not,
On the basis of substantive content of the invention, several improvements and modifications can also be made, these improvements and modifications also should be regarded as this
The protection scope of invention.But those skilled in the art one further, although preferred embodiments of the present invention have been described,
Denier knows basic creative concept, then additional changes and modifications may be made to these embodiments.So appended claims
It is intended to be construed to include preferred embodiment and all change and modification for falling into the scope of the invention.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
Mind and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to include these modifications and variations.
Claims (10)
1. a kind of fixture, it is characterised in that: including the first screw rod, hold-down mechanism, mobile mechanism, the first nut head, telescoping mechanism,
The telescoping mechanism is connected between first nut head and first screw rod, and two mobile mechanisms are installed in institute
It states on the first screw rod, and Liang Ge mobile mechanism is distributed along the axis of the first screw rod；Liang Ge mobile mechanism is symmetrically distributed in the first spiral shell
On bar；Three hold-down mechanisms are distributed in the outside of the first screw rod, and three hold-down mechanisms are connect with Liang Ge mobile mechanism；
The mobile mechanism include fixed ring, C-shaped ring, the second nut head, the first stop collar, the second stop collar, cating nipple,
First T shape annular groove, the 2nd T shape annular groove, the 3rd T shape annular groove, wherein cating nipple is mounted on the first screw rod；Second nut head
On be provided with the 2nd T shape annular groove；The circular hole of perforation is provided on second nut end surface；Second nut head passes through the circular hole opened thereon
It is fitted on the first screw rod with cating nipple；C-shaped ring inner headed face upper and lower ends are separately installed with the first stop collar and
Two stop collars；C-shaped ring is mounted in the second nut head by the second stop collar and the 2nd being rotatably assorted for T shape annular groove；It is described solid
Determine to be provided with the first T shape annular groove on ring periphery；The fixed ring passes through the peace that is rotatably assorted of the first stop collar and the first T shape annular groove
In C-shaped ring, and the fixed ring is nested on the outside of the first screw rod, end face of the fixed ring far from second nut head
On offer around first screw rod setting three the 3rd T shape annular grooves；
The hold-down mechanism includes third nut head, first connecting rod, the second screw rod, movable block, the second connecting rod, first
Ear, the second trunnion, third trunnion, the 4th nut head, threaded hole, first trunnion lower end are provided with the first sliding block, and described
One sliding block and be set on the fixed ring upper surface that first screw axis direction is located in the mobile mechanism of upside one
The 3rd T shape annular groove matches；The upper end of second trunnion is provided with the second sliding block, first sliding block and is set to institute
State a 3rd T shape annular groove phase on the fixed ring lower end surface that the first screw axis direction is located in the mobile mechanism of downside
Cooperation；The third trunnion is fixed on one side of the movable block；The first connecting rod and second connecting rod
One end be flexibly connected with the third trunnion by straight pin, the other end of the first connecting rod and second connecting rod
It is flexibly connected respectively by straight pin with first trunnion and the second trunnion, first sliding block and the second sliding block are in its correspondence
The 3rd T shape annular groove in sliding；The threaded hole of perforation is provided on the movable block end face；Second screw rod passes through external screw thread thereon
With being fitted on movable block for threaded hole；Third nut head and the 4th spiral shell are separately installed on the both ends end face of second screw rod
Female.
2. a kind of fixture according to claim 1, it is characterised in that: the cating nipple includes the first annulus, second
Annulus, first rotating shaft, third annulus, the second shaft are wherein provided with internal screw thread on third annulus inner headed face；Third annulus passes through it
On the external screw thread opened on the internal screw thread and the first screw rod opened be mounted on the first screw rod by being threadedly engaged；Second annulus is logical
It crosses two first rotating shafts on same straight line to be mounted on third annulus, and the second annulus is nested on the outside of third annulus；
First annulus is mounted on the second annulus by two the second shafts on same straight line, and the first annulus is nested in second
On the outside of annulus；The line of two the second shafts and the line of two first rotating shafts are orthogonal.
3. a kind of fixture according to claim 1, it is characterised in that: the periphery and the second nut head of first annulus
On the perforation circular hole inner headed face opened be coupled by key.
4. a kind of fixture according to claim 1, it is characterised in that: the telescoping mechanism includes electric telescopic rod, control
Device and control switch, the output shaft of the electric telescopic rod are fixedly connected with first screw rod, the control switch with it is described
Controller is electrically connected, and the control switch is for sending climb command or decline instruction to the controller, the controller
The electric telescopic rod elongation is controlled according to the climb command or decline instruction or is shunk.
5. a kind of fixture according to claim 1, it is characterised in that: the telescoping mechanism includes having upper and lower opening
Casing, adjustable spring, bearing plate and moving assembly, wherein the bearing plate be collar plate shape, the outer diameter of the bearing plate be less than or
Equal to the internal diameter of described sleeve pipe；The lower end of described sleeve pipe is fixedly connected with first nut head, and the moving assembly includes turning
Rotating ring, connecting rod and sliding shoe；The sliding slot to match with the connecting rod, the sliding slot are offered on the side wall of described sleeve pipe
The position at the top of described sleeve pipe is extended upwardly to from described sleeve pipe bottom；Be also provided on the side wall of described sleeve pipe it is multiple with
The card slot that the sliding slot communicates, multiple card slots are alternatively arranged along the direction of the sliding slot；The bottom of first screw rod is set
It is equipped with the interconnecting piece that outer diameter is less than first screw rod, first screw rod passes through the top surface of the interconnecting piece and the bearing plate
Be fixedly connected, the bottom surface of the bearing plate is fixedly connected with one end of the adjustable spring, the other end of the adjustable spring with
First nut head is fixedly connected；The outer peripheral surface of the interconnecting piece is provided with the rotation with interconnecting piece rotation connection
Ring, described connecting rod one end are fixedly connected with the lateral wall of the swivel becket, and the other end of the connecting rod passes through the sliding slot
Or the card slot is fixedly connected with the sliding shoe.
6. fixture according to claim 1, it is characterised in that: the 4th nut head is pacified on the end face far from the second screw rod
Equipped with multiple convex blocks.
7. a kind of fixture according to claim 2, it is characterised in that: end face of the 4th nut head far from the second screw rod
On be equipped with multiple convex blocks material be rubber.
8. a kind of fixture according to claim 1, it is characterised in that: between first stop collar and the first T shape annular groove
It is coated with lubricating oil, is coated with lubricating oil between the second stop collar and the 2nd T shape annular groove.
9. a kind of fixture according to claim 1, it is characterised in that: first screw rod is divided into top and lower part, described
The top of first screw rod has the first screw thread, and the lower part of first screw rod has the second screw thread, first screw thread with it is described
The hand of spiral of second screw thread is on the contrary, first screw thread and second screw thread are symmetrically distributed on first screw rod.
10. a kind of fixture according to claim 1, it is characterised in that: first annulus, the second annulus, third annulus
Thickness it is all the same.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811505396.XA CN109333413A (en) | 2018-12-10 | 2018-12-10 | A kind of fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811505396.XA CN109333413A (en) | 2018-12-10 | 2018-12-10 | A kind of fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109333413A true CN109333413A (en) | 2019-02-15 |
Family
ID=65303486
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811505396.XA Pending CN109333413A (en) | 2018-12-10 | 2018-12-10 | A kind of fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109333413A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110900254A (en) * | 2019-12-24 | 2020-03-24 | 李芹芹 | Clamping device for machining high-precision disc sleeve type parts |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0236672A1 (en) * | 1986-02-08 | 1987-09-16 | Festo KG | Device for clamping work pieces onto benches or onto the working areas of processing devices or machines |
| DE202004009050U1 (en) * | 2004-06-08 | 2004-08-12 | Vischer & Bolli Ag | Pneumatically operated clamping DE4vice with retainer bolt, comprising sensor unit for control of air ducts |
| DE202007018104U1 (en) * | 2007-12-21 | 2008-05-29 | ULClassics Bürger / Martin GbR (vertretungsberechtigter Gesellschafter: Herr Michael Martin, 30826 Garbsen) | Clamping and clamping device for machining pipe and profile material |
| CN102338144A (en) * | 2010-07-15 | 2012-02-01 | 黄国光 | Telescopic regulation structure |
| CN102773819A (en) * | 2012-08-21 | 2012-11-14 | 中国科学院自动化研究所 | Manual inner wall holding device and method of thin wall cylindrical component |
| CN203765506U (en) * | 2014-04-16 | 2014-08-13 | 中国重汽集团成都王牌商用车有限公司 | Bi-directional thread tightening device |
| CN108422357A (en) * | 2018-05-30 | 2018-08-21 | 杨定邦 | A kind of fixture of the adjustable protection workpiece machined surface of clamping force |
| CN108422358A (en) * | 2018-05-30 | 2018-08-21 | 敖桃荣 | A kind of fixture with the machined surface function of protecting workpiece |
-
2018
- 2018-12-10 CN CN201811505396.XA patent/CN109333413A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0236672A1 (en) * | 1986-02-08 | 1987-09-16 | Festo KG | Device for clamping work pieces onto benches or onto the working areas of processing devices or machines |
| DE202004009050U1 (en) * | 2004-06-08 | 2004-08-12 | Vischer & Bolli Ag | Pneumatically operated clamping DE4vice with retainer bolt, comprising sensor unit for control of air ducts |
| DE202007018104U1 (en) * | 2007-12-21 | 2008-05-29 | ULClassics Bürger / Martin GbR (vertretungsberechtigter Gesellschafter: Herr Michael Martin, 30826 Garbsen) | Clamping and clamping device for machining pipe and profile material |
| CN102338144A (en) * | 2010-07-15 | 2012-02-01 | 黄国光 | Telescopic regulation structure |
| CN102773819A (en) * | 2012-08-21 | 2012-11-14 | 中国科学院自动化研究所 | Manual inner wall holding device and method of thin wall cylindrical component |
| CN203765506U (en) * | 2014-04-16 | 2014-08-13 | 中国重汽集团成都王牌商用车有限公司 | Bi-directional thread tightening device |
| CN108422357A (en) * | 2018-05-30 | 2018-08-21 | 杨定邦 | A kind of fixture of the adjustable protection workpiece machined surface of clamping force |
| CN108422358A (en) * | 2018-05-30 | 2018-08-21 | 敖桃荣 | A kind of fixture with the machined surface function of protecting workpiece |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110900254A (en) * | 2019-12-24 | 2020-03-24 | 李芹芹 | Clamping device for machining high-precision disc sleeve type parts |
| CN110900254B (en) * | 2019-12-24 | 2020-11-03 | 徐州晨晓精密机械制造有限公司 | Clamping device for machining high-precision disc sleeve type parts |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106662136A (en) | Bolt for bracing parts lying on one another | |
| CN107322549B (en) | A kind of axial workpiece safety protection frame held tightly automatically | |
| CN109015607A (en) | A kind of adjustable connection pedestal of industrial robot | |
| CN108994754A (en) | A kind of fixture of the machined surface function with protection workpiece | |
| CN208262345U (en) | A kind of novel Cutting platform | |
| CN109333413A (en) | A kind of fixture | |
| CN207903759U (en) | A kind of hoisting fixture | |
| CN206445727U (en) | Adjustable pressing device | |
| CN108422357A (en) | A kind of fixture of the adjustable protection workpiece machined surface of clamping force | |
| US3194548A (en) | Clamping arrangement | |
| CN106311882A (en) | Steel plate die fixing and clamping device | |
| CN208323170U (en) | A kind of fixture of the adjustable protection workpiece machined surface of clamping force | |
| CN109048719A (en) | A kind of fixture | |
| CN109333113A (en) | A kind of axial workpiece groove milling clamp for machining | |
| CN207577908U (en) | A kind of positioning clamp for machining | |
| CN112809537A (en) | Workpiece is lapping burnishing machine for raw material processing | |
| CN208322769U (en) | A kind of machine-building clamping device | |
| CN206802715U (en) | A kind of two-stage mobile phone fixture for rotating regulation and width adjusting | |
| CN207431776U (en) | A kind of adjustable machine clamp for machining | |
| CN211916215U (en) | Bearing machining positioning device | |
| CN209370310U (en) | A kind of testing device | |
| CN208867024U (en) | A kind of pipe material clamp | |
| CN210189079U (en) | Clamping device is used in bearing production of adjustable elasticity | |
| CN207522450U (en) | A kind of axially stacking formula valve fixture | |
| CN209520621U (en) | A kind of fixture for gear eccentricity hole machined |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190215 |