CN206550679U - A kind of anti-jamming wedge surface retaining mechanism - Google Patents
A kind of anti-jamming wedge surface retaining mechanism Download PDFInfo
- Publication number
- CN206550679U CN206550679U CN201720164148.8U CN201720164148U CN206550679U CN 206550679 U CN206550679 U CN 206550679U CN 201720164148 U CN201720164148 U CN 201720164148U CN 206550679 U CN206550679 U CN 206550679U
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- China
- Prior art keywords
- duct
- support shaft
- screw rod
- retaining mechanism
- ejector pin
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Abstract
The utility model discloses a kind of anti-jamming wedge surface retaining mechanism, including bearing, swivel nut, support shaft, nose cone ejector pin, T-shaped screw rod, guide finger and handle, self-locking inclined-plane and guide groove are provided with support shaft.Guide finger one end is slideably positioned in guide groove, and the other end is stretched out outside bearing, for limiting the axial stroke of support shaft and rotating in a circumferential direction.It is placed on due to the T-shaped structure on T-shaped screw rod in the T-slot on nose cone ejector pin, when rotating handle, T-shaped screw rod is rotated simultaneously, and by the cooperation of the internal thread set on the external screw thread and swivel nut in the middle part of T-shaped screw rod, driving T-shaped screw rod and nose cone ejector pin are axially moveable.When nose cone ejector pin is fitted with separating with the self-locking inclined-plane in support shaft, the self-locking of support shaft is realized respectively and self-locking is released.Beneficial effect is：Support shaft moving range is big, only by itself guide groove length limitation；Nose cone ejector pin is moved by T-shaped screw, and stress is larger, is not in stuck, it is ensured that the reliability of retaining mechanism.
Description
Technical field
The utility model is related to retaining mechanism technical field, more particularly to a kind of anti-jamming wedge surface retaining mechanism.
Background technology
In machining, workpiece generally requires fixture to position and clamp, but may deform thin-wall workpiece when clamping,
Influence Workpiece Machining Accuracy.Retaining mechanism of the prior art, generally processes surface groove vertically in support shaft, by ejector pin
Anti-rotation is processed in the middle of the inclined-plane of front end raised, and the anti-rotation projection is caught in support shaft surface groove, for support shaft and ejector pin
Guiding, but there is also following shortcoming：Anti-rotation is raised to limit ejector pin and the stroke of support shaft simultaneously, is needing larger stroke
It can lock inapplicable during workpiece；There is anti-rotation raised in the middle of the inclined-plane of ejector pin front end, ejector pin inclined-plane will be processed in two times, and flatness is not
It is good, influence locking effect；Ejector pin is retreated by support shaft inclined-plane, but iron filings and cutting fluid are distributed in ejector pin week during actual use
Enclose, easily cause that ejector pin is stuck to be retracted, the automatic regulation function failure of Shi Suojin mechanisms.
Utility model content
The purpose of this utility model is to provide the anti-jamming wedge surface locking machine that a kind of support shaft moving range is big, coupling mechanism force is big
Structure.
To achieve the above object, the utility model provides following scheme：
The utility model provides a kind of anti-jamming wedge surface retaining mechanism, including bearing, swivel nut, support shaft, nose cone ejector pin,
The first duct, the second duct and the 3rd duct are provided with T-shaped screw rod and guide finger, the bearing, first duct is logical
Hole, first duct and second duct is communicated and axis intersects vertically, first duct and the 3rd duct phase
Logical and axis intersects vertically, slide in the first duct in be provided with support shaft, the support shaft offer self-locking inclined-plane with
Guide groove, the self-locking inclined-plane is corresponding with the position in second duct, and the guide groove is corresponding with the 3rd duct position,
The guide finger is arranged in the 3rd duct, and the swivel nut is arranged on the bearing, band is provided with the swivel nut interior
4th duct of screw thread, the 4th duct is through hole and coaxial with second duct, and one end of the nose cone ejector pin is opened
There is T-slot, the other end is nose cone, described T-shaped screw rod one end is the T-shaped structure matched with the T-slot, the other end stretches out institute
State outside swivel nut, the T-shaped screw rod center section is provided with the external screw thread matched with the internal thread in the 4th duct.
Further, it is provided with first duct on bushing, the bushing and second duct and the described 3rd
Duct position corresponding position is provided with opening, and the support shaft is slideably positioned in the bushing.
Further, the rest base is provided with the second through hole.
Further, internal thread is provided with the 3rd duct, the guide finger is pin.
Further, the support shaft includes cylindrical section and spacing section, and the cylindrical section is slideably positioned in first hole
In road, the sliding stroke of the spacing section of limitation support shaft.
Further, second duct is vertical with the axis in the 3rd duct.
Further, the swivel nut includes cylindrical portion and fixed part, and the fixed part is fixed on the bearing, the circle
Cylinder portion is arranged in second duct, and the 4th duct and the cylindrical portion are coaxial, and the nose cone ejector pin, which is slided, to be set
In in the cylindrical portion.
Further, it is provided with first through hole, the bearing and is provided with and the first through hole pair on the fixed part
The bearing and the swivel nut are fixedly connected with by the first screw at the first screw answered, the first through hole.
Further, one end that the T-shaped screw rod is stretched out outside the swivel nut is connected with handle.
Further, one end that the T-shaped screw rod is stretched out outside the swivel nut is set in square structure, the square structure
Be provided with the heart on the second screw, the handle and the square structure corresponding position be provided with shoulder hole, the shoulder hole it is small
Hole section is the square hole matched with the square structure, the center section of the T-shaped screw rod and the square structure portion of the T-shaped screw rod
Ladder is provided between point, and the handle and the T-shaped screw rod are provided with the second spiral shell by the ladder clamping at the shoulder hole
Nail.
The utility model achieves following technique effect relative to prior art：
The ejector pin for playing self-locking and guide function simultaneously in the prior art is decomposed into enter using guide finger by the utility model
Guide frame and the self-locking structure using the progress self-locking of nose cone ejector pin that row is oriented to, expand the moving range of support shaft；Circle
The circular cone of conehead ejector pin can be machined for the first time, and precision is easily guaranteed that, and coupling mechanism force is big；Nose cone ejector pin relies on T-shaped spiral shell
Bar is moved, and stress is larger, is not in stuck phenomenon, it is ensured that the reliability of retaining mechanism.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
In required for the accompanying drawing that uses be briefly described, it should be apparent that, drawings in the following description are only of the present utility model
Some embodiments, for those of ordinary skill in the art, without having to pay creative labor, can also basis
These accompanying drawings obtain other accompanying drawings.
Fig. 1 is the anti-jamming wedge surface retaining mechanism schematic diagram of the utility model；
Fig. 2 is Fig. 1 front view；
Fig. 3 is Fig. 2 along A-A directions sectional view；
Fig. 4 is screw bushing structure schematic diagram；
Fig. 5 is T-shaped screw-rod structure schematic diagram；
Fig. 6 is nose cone ejector pin structural representation；
Description of reference numerals：1st, bearing；2nd, swivel nut；3rd, support shaft；4th, nose cone ejector pin；5th, T shapes screw rod；6th, guide finger；
7th, bushing；8th, the first duct；9th, the second duct；10th, the 3rd duct；11st, the 4th duct；12nd, self-locking inclined-plane；13rd, guide groove；
14th, cylindrical section；15th, spacing section；16th, T-slot；17th, nose cone；18th, T-shaped structure；19th, square structure；20th, the second screw；21、
Second screw；22nd, ladder；23rd, fixed part；24th, cylindrical portion；25th, first through hole；26th, the first screw；27th, handle；28th, ladder
Hole；29th, the second through hole.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belongs to the scope of the utility model protection.
To enable above-mentioned purpose of the present utility model, feature and advantage more obvious understandable, below in conjunction with the accompanying drawings and tool
Body embodiment is described in further detail to the utility model.
The purpose of this utility model is to provide the anti-jamming wedge surface locking machine that a kind of support shaft moving range is big, coupling mechanism force is big
Structure.
As shown in figures 1 to 6, the utility model provides a kind of anti-jamming wedge surface retaining mechanism, including bearing 1, swivel nut 2, supporting
Axle 3, nose cone ejector pin 4, T-shaped screw rod 5 and guide finger 6.
As shown in figure 1, the cross section of bearing 1 is "convex" shaped structure, the bottom of bearing 1 has outside extension, extends
The second through hole 29 is provided with portion, for fasteners such as mounting screws with hold-down support 1.As Figure 2-3, the top of bearing 1 is set
The first duct 8, the second duct 9 and the 3rd duct 10 are equipped with, the first duct 8 is through hole and passes through the front and rear end of bearing 1, the
One duct 8 and the second duct 9 is communicated and axis intersects vertically, the one end of the second duct 9 is connected with the first duct 8, and the other end is worn
Cross its right end face of bearing 1, the first duct 8 and the 3rd duct 10 is communicated and axis intersects vertically, one end of the 3rd duct 10 and the
One duct 8 is connected, and the other end passes through the top surface of bearing 1.Second duct 9 is horizontally disposed with, and the 3rd duct 10 is vertically arranged.
It is provided with bushing 7, bushing 7 and is provided with the second duct 9 and the position corresponding position of the 3rd duct 10 in first duct 8
Opening.Support shaft 3 is slideably positioned in bushing 7, and support shaft 3 includes cylindrical section and spacing section, and spacing section is slided for support shaft 3
When propped up with the end face of bearing 1 it is spacing.Self-locking inclined-plane 12 and guide groove 13, the duct of self-locking inclined-plane 12 and second are offered on cylindrical section
9 position correspondence, spacing section is located on the self-locking direction on self-locking inclined-plane in support shaft 3, and guide groove 13 is parallel to support shaft 3
Axis and corresponding with the position of the 3rd duct 10.
Internal thread is provided with 3rd duct 10, guide finger 6 is arranged in the 3rd duct 10, guide finger 6 is pin.Lead
It is slideably positioned in the one end of pin 6 in guide groove 13, the other end is stretched out outside bearing 1, guide finger 6 is used for the axial direction for limiting support shaft 3
Stroke and rotate in a circumferential direction.
As shown in figure 4, swivel nut 2 is fixed on the outer surface of bearing 1, swivel nut 2 includes fixed part 23 and cylindrical portion 24.Cylindrical portion 24
Match with the second duct 9, fixed part 23 is fixed on bearing 1.23 are provided with first through hole 25, bearing 1 and set on fixed part
It is equipped with first screw corresponding with first through hole 25, first through hole 25 and bearing 1 and swivel nut is fixedly connected with by the first screw 26
2.The 4th duct 11 is provided with fixed part 23, the 4th duct 11 is through hole and coaxial with cylindrical portion 24, the second duct 9.4th
Duct 11 is provided with internal thread, and nose cone ejector pin 4 is slideably positioned in cylindrical portion 24.
As shown in fig. 6, one end of nose cone ejector pin 4 is provided with T-slot 16, the axis in the 3rd duct 10 is located at T-slot 16
On the plane of symmetry.The other end of nose cone ejector pin 4 is nose cone 17, and the angle of the bus of nose cone 17 and the axis of nose cone ejector pin 4 is
α, the axis angle of 12 and first duct of self-locking inclined-plane 8 is β, and alpha+beta=90 ° make the bus of nose cone 17 be fitted with self-locking inclined-plane 12,
Play self-locking action.
As shown in figure 5, the one end of T-shaped screw rod 5 is the T-shaped structure 18 matched with T-slot 16, to be put into nose cone ejector pin 4
On T-slot 16 in, the center section of T-shaped screw rod 5 is provided with external screw thread, and external screw thread is matched with the internal thread in the 4th duct 11, T-shaped
The other end of screw rod 5 is stretched out outside swivel nut 2.One end that T-shaped screw rod 5 is stretched out outside swivel nut 2 is set to square structure 19, square structure 19
Center is provided with the second screw 20.Be provided with shoulder hole 28 on handle 27 with the corresponding position of square structure 19, shoulder hole 28 it is small
Hole section is the square hole matched with square structure 19, and square structure 19 is inserted into square hole, rotates handle 27, you can drive T-shaped screw rod 5
Rotate.Ladder 22, handle 27 and T-shaped spiral shell are provided between the center section of T-shaped screw rod 5 and the part of square structure 19 of T-shaped screw rod 5
Bar 5 is provided with the second screw 21 at shoulder hole 28, passes through the second screw 21 and the common work of ladder 22 by the clamping of ladder 22
With handle 27 and T-shaped screw rod 5 are fixed together.
In use, because the T-shaped structure 18 on T-shaped screw rod 5 is placed in the T-slot 16 on nose cone ejector pin 4, rotating hand
During handle 27, T-shaped screw rod 5 is rotated simultaneously, and the cooperation of the external screw thread and the internal thread in the 4th duct 11 by the middle part of T-shaped screw rod 5,
Axial movement of the T-shaped screw rod 5 along the 4th duct 11 is driven, and drives axial movement of the nose cone ejector pin 4 along the 4th duct 11.When
When nose cone ejector pin 4 is fitted with self-locking inclined-plane 12, make the self-locking of support shaft 3, when nose cone ejector pin 4 is separated with self-locking inclined-plane 12,
Release self-locking state.
The ejector pin for playing self-locking and guide function simultaneously in the prior art is decomposed into enter using guide finger by the utility model
Guide frame and the self-locking structure using the progress self-locking of nose cone ejector pin that row is oriented to, expand the moving range of support shaft, should
Moving range is only by the length limitation of guide groove.
Anti-rotation is provided with the middle of the inclined-plane of ejector pin front end in the prior art raised, ejector pin inclined-plane will be processed in two times, flatness
It is bad, influence locking effect；The circular cone of nose cone ejector pin of the present utility model can be machined for the first time, and precision is easily protected
Card, and coupling mechanism force is big.
Self-locking structure is divided into multistage, including nose cone ejector pin and T-shaped screw rod by the utility model, and nose cone ejector pin relies on T
Shape screw motion, stress is larger, is not in stuck phenomenon, it is ensured that the reliability of retaining mechanism.
It should be noted that the second duct is horizontally disposed with the present embodiment, the 3rd duct is vertically arranged, people in the art
Member can be selected the angle and position in the second duct and the 3rd duct according to actual needs, such as by the second duct and the 3rd
Duct is horizontally disposed with.
Apply specific case in this specification to be set forth principle of the present utility model and embodiment, the above is real
The explanation for applying example is only intended to help and understands method of the present utility model and its core concept；Simultaneously for the general of this area
Technical staff, according to thought of the present utility model, will change in specific embodiments and applications.To sum up institute
State, this specification content should not be construed as to limitation of the present utility model.
Claims (10)
1. a kind of anti-jamming wedge surface retaining mechanism, it is characterised in that including bearing, swivel nut, support shaft, nose cone ejector pin, T-shaped spiral shell
The first duct, the second duct and the 3rd duct are provided with bar and guide finger, the bearing, first duct is through hole, institute
State the first duct and second duct is communicated and axis intersects vertically, first duct and the 3rd duct are communicated and axle
Line intersects vertically, and slip, which is provided with support shaft, the support shaft, in first duct offers self-locking inclined-plane and guide groove,
The self-locking inclined-plane is corresponding with the position in second duct, and the guide groove is corresponding with the 3rd duct position, described to lead
It is arranged in the 3rd duct, the swivel nut is arranged on the bearing, is provided with the swivel nut tapped to pin
4th duct, the 4th duct is through hole and coaxial with second duct, and one end of the nose cone ejector pin is provided with T-shaped
Groove, the other end is nose cone, and described T-shaped screw rod one end is the T-shaped structure matched with the T-slot, and the other end stretches out the spiral shell
Set is outer, and the T-shaped screw rod center section is provided with the external screw thread matched with the internal thread in the 4th duct.
2. anti-jamming wedge surface retaining mechanism according to claim 1, it is characterised in that be provided with lining in first duct
Opening is provided with set, the bushing with second duct and the 3rd duct position corresponding position, the support shaft is slided
It is arranged in the bushing.
3. anti-jamming wedge surface retaining mechanism according to claim 1, it is characterised in that the rest base is provided with second
Through hole.
4. anti-jamming wedge surface retaining mechanism according to claim 1, it is characterised in that in being provided with the 3rd duct
Screw thread, the guide finger is pin.
5. anti-jamming wedge surface retaining mechanism according to claim 1, it is characterised in that the support shaft include cylindrical section and
Spacing section, the cylindrical section is slideably positioned in first duct, the sliding stroke of the spacing section of limitation support shaft.
6. anti-jamming wedge surface retaining mechanism according to claim 1, it is characterised in that second duct and the described 3rd
The axis in duct is vertical.
7. anti-jamming wedge surface retaining mechanism according to claim 1, it is characterised in that the swivel nut includes cylindrical portion and solid
Determine portion, the fixed part is fixed on the bearing, the cylindrical portion is arranged in second duct, the 4th duct with
The cylindrical portion is coaxial, and the nose cone ejector pin is slideably positioned in the cylindrical portion.
8. anti-jamming wedge surface retaining mechanism according to claim 7, it is characterised in that be provided with first on the fixed part
It is provided with through hole, the bearing at the first screw corresponding with the first through hole, the first through hole and passes through the first screw
It is fixedly connected with the bearing and the swivel nut.
9. anti-jamming wedge surface retaining mechanism according to claim 1, it is characterised in that the T-shaped screw rod stretches out the spiral shell
One end outside set is connected with handle.
10. anti-jamming wedge surface retaining mechanism according to claim 9, it is characterised in that the T-shaped screw rod stretches out the spiral shell
One end outside set is set to square structure, and the square structure center is provided with the second screw, the handle and the side
Shape structure corresponding position is provided with shoulder hole, and the aperture section of the shoulder hole is the square hole matched with the square structure, the T-shaped
Ladder is provided between the center section of screw rod and the square structure part of the T-shaped screw rod, the handle leads to the T-shaped screw rod
Cross at the ladder clamping, the shoulder hole and be provided with the second screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720164148.8U CN206550679U (en) | 2017-02-23 | 2017-02-23 | A kind of anti-jamming wedge surface retaining mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720164148.8U CN206550679U (en) | 2017-02-23 | 2017-02-23 | A kind of anti-jamming wedge surface retaining mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206550679U true CN206550679U (en) | 2017-10-13 |
Family
ID=60361564
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720164148.8U Expired - Fee Related CN206550679U (en) | 2017-02-23 | 2017-02-23 | A kind of anti-jamming wedge surface retaining mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206550679U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113894568A (en) * | 2021-09-01 | 2022-01-07 | 宜昌长机科技有限责任公司 | Phase control device and method for gear shaft machining |
-
2017
- 2017-02-23 CN CN201720164148.8U patent/CN206550679U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113894568A (en) * | 2021-09-01 | 2022-01-07 | 宜昌长机科技有限责任公司 | Phase control device and method for gear shaft machining |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171013 |