CN207983201U - A kind of fixture - Google Patents
A kind of fixture Download PDFInfo
- Publication number
- CN207983201U CN207983201U CN201820403300.8U CN201820403300U CN207983201U CN 207983201 U CN207983201 U CN 207983201U CN 201820403300 U CN201820403300 U CN 201820403300U CN 207983201 U CN207983201 U CN 207983201U
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- CN
- China
- Prior art keywords
- driven member
- fixture
- convex surface
- disc cam
- testee
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Abstract
The utility model discloses a kind of fixture, including pedestal, pedestal sets disc cam and driven member, and motor is connect by axis with disc cam, and disc cam is equipped with convex surface；Driven member is connect by fixing piece with pedestal, and driven member includes push rod and extension spring, and extension spring one end is connect with fixing piece, and the extension spring other end is connect with push rod, and driven member is circumferentially distributed along disc cam, and when clamping, convex surface contacts with driven member.The utility model provides one kind and is positioned over inside testee to realize to testee clamping, the fixture of energy Automatic-clamping and release, and fixture is made more to stablize when testee is clamped.
Description
Technical field
The utility model is related to clamping device fields, more specifically, it is related to a kind of fixture.
Background technology
In manufacturing industry, it is often necessary to detect the outer surface of some plant machineries.For example, between nacelle and nacelle and cabin
The connection of in-vivo device is attached often by bolt.Due to the high request and geometric dimension of the product structure performance
The diameter of height limitation, through-hole or bolt hole cannot be excessive, and the asymmetry of position can lead to installation deviation, comes to bolt band huge
Big shearing force.If sleeve joint hole is circumferentially distributed uneven, then being easy by ambient atmosphere during sporting flying
The influence of resistance, wind speed etc. generates vibrations, the shock loading of alternation.Speed is very big when flight, by being influenced
It can aggravate, bolt hole unevenly distributed makes the bolt tension force of connection and shearing force extremely increase in this case, holds very much
Easily lead to bolt fracture.So the circumferentially distributed measurement of nacelle sleeve joint hole is particularly significant.But traditional fixture to nacelle or
When other objects under test grip, it is generally disposed on the outside of testee, nacelle or other determinand body surfaces can be blocked
The sleeve joint hole in face, or the outer surface detected is needed, to be detected to sleeve joint hole or outer surface.
Invention content
The purpose of this utility model is to provide one kind to be positioned over inside testee to realize to testee clamping,
And the fixture of energy Automatic-clamping and release.
Technical solution adopted by the utility model to solve its technical problems is：
A kind of fixture, including pedestal, pedestal set disc cam and driven member, and motor is connect by axis with disc cam, disk
Shape cam is equipped with convex surface；Driven member is connect by fixing piece with pedestal, and driven member includes push rod and extension spring, extension spring one
End is connect with fixing piece, and the extension spring other end is connect with push rod, and driven member is circumferentially distributed along disc cam, when clamping, convex surface
It is contacted with driven member.Weldering can be used in the connection type and extension spring of extension spring and fixing piece and the connection type of push rod
Connect mode.
Further, it includes multiple convex surfaces and multiple concave surfaces that disc cam, which uses flower pattern disk cam, flower pattern disk cam,
Concave surface is alternately distributed with convex surface；When release, driven member is towards concave surface.Concave surface is smoothly connected with convex surface, to reduce disc cam rotation
The resistance for coming from driven member is encountered during turning, to realize that disc cam smoothly rotates.
Further, flower pattern disk cam is equipped with the identical convex surface of at least three, convex surface equidistantly distributed；Driven member and convex surface
It corresponds.Preferably, pedestal is equipped with 3 driven members, and 3 driven members can ensure the stability that testee is clamped, simultaneously
The quantity of driven member 3 can be reduced.
Further, push rod includes the first bar, buffer spring and the second bar, buffer spring be located at the first bar and the second bar it
Between.When fixture excessively squeezes testee, buffer spring compression, the first bar and the second bar are relatively moved, are avoided driven
Part excessively squeezes testee, to avoid damage testee.
Further, the first rod end surface is equipped with ball.Ball and testee makes point contact, reduce forced area, increase
Pressure, to improve the function and effect of pressure.Face material uses plastics, increases friction when contact with testee surface
Power also avoids damage to measured object.
Further, pedestal is provided with multiple directional holes that can accommodate ball, and directional hole is corresponded with driven member.It clamps
When, driven member passes through directional hole and is contacted with the inner surface of testee, and driven member is not easy to deviate disk when testee is clamped
The radial position of shape cam makes clamping more stablize.
The course of work of the utility model：Testee is positioned over outside fixture, stepper motor rotates fixed angles every time
Degree, drives coupled axis to synchronize rotation, and the rotation of axis drives the rotation of disc cam.Disc cam turns to convex
When face is contacted with push rod, push rod moves under the action of convex surface squeezes to testee direction, realizes to testee
It clamps；When disc cam turns to push rod towards concave surface, push rod is transported under the action of extension spring to disc cam direction
It is dynamic, realize the release to testee.
Advantage is the utility model compared with prior art：1, fixture is positioned over inside testee, clamps measured object
Body avoids the outer surface for blocking testee or sleeve joint hole.
2, by setting the rotational angle of stepper motor, driven member is made to generate back and forth movement along disc cam male and fomale(M＆F), in fact
Now to the Automatic-clamping of testee and release.
3, pedestal is provided with multiple directional holes, and when clamping, driven member passes through directional hole and contacted with the inner surface of testee,
Fixture is set more to stablize when testee is clamped.
Description of the drawings
FIG. 1 is a schematic structural view of the utility model.
Fig. 2 is the sectional view of the utility model.
Fig. 3 is the vertical view of the utility model.
Fig. 4 is the structural schematic diagram of driven member.
It is identified in figure：Pedestal 1, disc cam 2, driven member 3, motor 21, axis 22, convex surface 231, concave surface 232, push rod 31,
Extension spring 32, the first bar 311, buffer spring 313, the second bar 312, ball 33, fixing piece 11, directional hole 12.
Specific implementation mode
The utility model is further illustrated with reference to the accompanying drawings and detailed description.
A kind of fixture, as depicted in figs. 1 and 2, including pedestal 1, pedestal 1 set disc cam 2, and motor 21 passes through axis 22 and disk
Shape cam 2 connects, and disc cam 2 is equipped with convex surface 231；Pedestal 1 connects driven member 33 by fixing piece 11, and driven member 33 includes pushing away
Bar 31 and extension spring 32,32 one end of extension spring are connect with fixing piece 11, and 32 other end of extension spring is connect with push rod 31, from
Moving part 3 is circumferentially distributed along disc cam 2, and when clamping, convex surface 231 contacts with driven member 3.Fixing piece 11 is hollow shape, driven member
33 pass through fixing piece 11.The forms such as bolt, welding can be used in fixing piece 11 and the connection type of pedestal 1.Extension spring 32 with it is solid
Welding manner can be used in the connection type of the connection type and extension spring 32 and push rod 31 of determining part 11.
As shown in figure 3, disc cam 2 uses flower pattern disk cam, flower pattern disk cam includes multiple convex surfaces 231, and more
A concave surface 232, concave surface 232 are alternately distributed with convex surface 231；When release, driven member 3 is towards concave surface 232.Concave surface 232 and convex surface 231
It is smoothly connected, the resistance for coming from driven member 3 is encountered in 2 rotary course of disc cam to reduce, to realize that disc cam 2 is suitable
Profit rotation.
Flower pattern disk cam is equipped with the identical convex surface 231 of at least three, 231 equidistantly distributed of convex surface；Driven member 3 and convex surface
231 correspond.Preferably, pedestal 1 is equipped with 3 driven members 3, and flower pattern disk cam is equipped with 12 identical convex surfaces 231, such as schemes
Shown in 3,3 driven members 3 can ensure the stability of fixture clamping testee, while can reduce the quantity of driven member 3 to drop
Low cost.
As shown in Figure 2 and Figure 4, push rod 31 includes the first bar 311, buffer spring 313 and the second bar 312, buffer spring 313
Between the first bar 311 and the second bar 312.First bar 311 is contacted with testee, and the second bar 312 is towards disc cam 2.
When fixture excessively squeezes testee, buffer spring 313 is compressed, and opposite move occurs for the first bar 311 and the second bar 312
It is dynamic, avoid driven member 3 from excessively squeezing testee, to avoid damage testee.
First bar, 311 end face is equipped with ball 33, as shown in Figure 2.Ball 33 and testee makes point contact, reduce stress
Area increases pressure, to improve the clamping action to testee.Face material uses plastics, is connect with testee surface
Increase frictional force when tactile, also avoids damage to measured object.
Pedestal 1 is provided with multiple directional holes 12 that can accommodate ball 33, and directional hole 12 is corresponded with driven member 3, such as Fig. 1
It is shown.When clamping, driven member 3 passes through directional hole 12 and is contacted with the inner surface of testee, and driven member 3 is in clamping testee
Shi Buyi deviates the radial position of disc cam 2, and clamping is made more to stablize.
Content described in this specification embodiment is only enumerating for the way of realization conceived to utility model, this practicality is new
The protection domain of type is not construed as being only limitted to the concrete form that embodiment is stated, the scope of protection of the utility model also and
In those skilled in the art according to the utility model design it is conceivable that equivalent technologies mean.
Claims (6)
1. a kind of fixture, it is characterised in that：Including pedestal, pedestal sets disc cam and driven member, and motor is convex with dish type by axis
Wheel connection, disc cam are equipped with convex surface；Driven member is connect by fixing piece with pedestal, and driven member includes push rod and extension spring,
Extension spring one end is connect with fixing piece, and the extension spring other end is connect with push rod, and driven member is circumferentially distributed along disc cam, folder
When tight, convex surface contacts with driven member.
2. a kind of fixture as described in claim 1, it is characterised in that：Disc cam uses flower pattern disk cam, flower pattern disk
Cam includes multiple convex surfaces and multiple concave surfaces, and concave surface is alternately distributed with convex surface；When release, driven member is towards concave surface.
3. a kind of fixture as claimed in claim 2, it is characterised in that：Flower pattern disk cam is equipped with the identical convex surface of at least three,
Convex surface equidistantly distributed；Driven member is corresponded with convex surface.
4. a kind of fixture as described in claim 1, it is characterised in that：Push rod includes the first bar, buffer spring and the second bar, is delayed
Spring is rushed between the first bar and the second bar.
5. a kind of fixture as claimed in claim 4, it is characterised in that：First rod end surface is equipped with ball.
6. a kind of fixture as claimed in claim 5, it is characterised in that：Pedestal is provided with multiple directional holes that can accommodate ball,
Directional hole is corresponded with driven member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820403300.8U CN207983201U (en) | 2018-03-23 | 2018-03-23 | A kind of fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820403300.8U CN207983201U (en) | 2018-03-23 | 2018-03-23 | A kind of fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207983201U true CN207983201U (en) | 2018-10-19 |
Family
ID=63829864
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820403300.8U Active CN207983201U (en) | 2018-03-23 | 2018-03-23 | A kind of fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207983201U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108284408A (en) * | 2018-03-23 | 2018-07-17 | 浙江大学山东工业技术研究院 | A kind of fixture |
| CN109807770A (en) * | 2018-12-26 | 2019-05-28 | 沈阳富创精密设备有限公司 | A kind of special-shaped part cam clamping device |
-
2018
- 2018-03-23 CN CN201820403300.8U patent/CN207983201U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108284408A (en) * | 2018-03-23 | 2018-07-17 | 浙江大学山东工业技术研究院 | A kind of fixture |
| CN109807770A (en) * | 2018-12-26 | 2019-05-28 | 沈阳富创精密设备有限公司 | A kind of special-shaped part cam clamping device |
| CN109807770B (en) * | 2018-12-26 | 2021-03-30 | 沈阳富创精密设备股份有限公司 | Special-shaped part cam clamping device |
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| GR01 | Patent grant |