CN207480423U - A kind of precision machinery fixture - Google Patents
A kind of precision machinery fixture Download PDFInfo
- Publication number
- CN207480423U CN207480423U CN201720816978.4U CN201720816978U CN207480423U CN 207480423 U CN207480423 U CN 207480423U CN 201720816978 U CN201720816978 U CN 201720816978U CN 207480423 U CN207480423 U CN 207480423U
- Authority
- CN
- China
- Prior art keywords
- gear
- fixture
- bull stick
- main shaft
- hole
- 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.)
- Expired - Fee Related
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- Jigs For Machine Tools (AREA)
Abstract
A kind of precision machinery fixture includes deep groove ball bearing, and deep groove ball bearing front end is inserted by main shaft, and rear end is connected with the wheel hub of gear；Front-end of spindle is equipped with hole, and bull stick is equipped in hole, and to transmit movement, rear-end of spindle is connected cooperation bull stick by the axis hole of deep groove ball bearing with gear；Upper fixture top of the trellis has screw to fix, and there is fixed gear in rear end；Gear is meshed with the rack of clamp rod upper end；Clamp rod lower end is connected with clamp head by internal thread；Clip groove is equipped with below clamp head；Clip groove is fixed on pedestal by screw；Lower fixture stand is welded with above pedestal；5 rotation driven gear 3 of bull stick rotates；Fixed gear rotation, passes through rack drives clamp rod longitudinal movement；Clamp rod drives clamp head to move downward, and clamp head clamps equipment to cooperation with foaming fixture slot below；With the advantages of cheap, theory structure is simple, low to environmental requirement, and clamping effect is good.
Description
Technical field
The invention belongs to clamp arts, and in particular to a kind of precision machinery fixture.
Background technology
At present field of fixtures is difficult to accurately give there are displacement clamping force or for some fixtures exist it is complicated and
It is expensive for the more demanding of material, for E-clamp aging waterproof ability it is poor situations such as, there are it to involve great expense,
The problem of theory structure is complicated, high to environmental requirement, the fixture of clamping effect difference.
Invention content
In order to overcome the above-mentioned deficiencies of the prior art, the object of the present invention is to provide a kind of precision machinery fixture, tools
There is the characteristics of cheap, simple in structure and clamping effect is good.
To achieve the above object, the technical solution adopted by the present invention is：A kind of precision machinery fixture, includes deep-groove ball axis
It holds, deep groove ball bearing front end is inserted by main shaft, and rear end is connected with the wheel hub of gear；Front-end of spindle is equipped with hole, and bull stick is equipped in hole,
To transmit movement, rear-end of spindle is connected cooperation bull stick by the axis hole of deep groove ball bearing with gear；Upper fixture top of the trellis has spiral shell
Nail is fixed, and there is fixed gear in rear end；Gear is meshed with the rack of clamp rod upper end；Clamp rod lower end is connected with by internal thread
Clamp head；Clip groove is equipped with below clamp head；Clip groove is fixed on pedestal by screw；Lower fixture stand is welded with above pedestal.
In the middle part of the axis of the gear fixed main shaft, screens is carried out by oil scraper ring on rear side of gear, the position of gear is fixed
It is motionless；Gear is spur gear wheel, its rotation is driven by the rotation of bull stick.
The bull stick is driving link, rod-shaped in long cylinder, is symmetrically installed in the hole of main shaft.
Rack is welded on the clamp rod, in oval column, by the transmission of rack, clamp rod is driven longitudinally to transport
It is dynamic；The device realizes monodirectional locking by the ratchet being located on main shaft and the ratchet pawl being used cooperatively with ratchet.
Fixation is bolted with lower fixture stand in the upper fixture frame；Lower fixture stand is opposite with clip groove in clamp head
Position be provided with the through-hole of rectangle.
The beneficial effects of the invention are as follows：
The present invention is by the engagement of rack-and-pinion, so having the characteristics that push the apparatus for fastening of clamp rod laborsaving；Due to
The engagement in rotation of rack-and-pinion is employed, so having the characteristics that circular motion drives rectilinear motion；It is transported as a result of angle
Dynamic engaged transmission is moved in line style, so with displacement is more accurately applied, by accurate displacement movement known to rigidity
In the case of and the characteristics of realize the accurate clamping article of power.
Since the gear used is spur gear wheel, so being easier with to angle controlling relative to linear movement
Reduce error and it is more accurate the characteristics of；
Accurate mobile apply after accurate load through clamp head and folder can be realized in a manner that rack-and-pinion is meshed
, it can be achieved that its is cheap, theory structure is simple, low to environmental requirement, clamps for the relative position of tool and the mechanical grip that carries out
The advantages of effect is good.
Description of the drawings
Fig. 1 is the structural diagram of the present invention.
Another state that Fig. 2 is Fig. 1 of the present invention is illustrated.
Specific embodiment
Referring to Fig. 1, a kind of precision machinery fixture, which is characterized in that include deep groove ball bearing 1,1 front end of deep groove ball bearing
It is inserted by main shaft 2, rear end is connected with the wheel hub of gear 3；2 front end of main shaft is equipped with hole, and bull stick 5 is equipped in hole, coordinate bull stick 5 so as to
Movement is transmitted, 2 rear end of main shaft is connected by the axis hole of deep groove ball bearing 1 with gear 3；4 top of upper fixture frame has screw to fix, after
There is fixed gear 3 at end；Gear 3 is meshed with the rack of 6 upper end of clamp rod；6 lower end of clamp rod is connected with fixture by internal thread
First 7；7 lower section of clamp head is equipped with clip groove 10；Clip groove 10 is fixed on pedestal 9 by screw；9 top of pedestal is welded with lower fixture
Frame 8.
In the middle part of the axis of 3 fixed main shaft 2 of gear, screens is carried out by oil scraper ring on rear side of gear, the position of gear is consolidated
It is fixed motionless；Gear 3 is spur gear wheel, its rotation is driven by the rotation of bull stick 5.
The bull stick 5 is driving link, rod-shaped in long cylinder, is symmetrically installed in the hole of main shaft 2.
Rack is welded on the clamp rod 6, in oval column, by the transmission of rack, drives 6 longitudinal direction fortune of clamp rod
It is dynamic；The device realizes monodirectional locking by the ratchet 11 being located on main shaft 2 and the ratchet pawl 12 being used cooperatively with ratchet 11.
Fixation is bolted with lower fixture stand 8 in the upper fixture frame 4；Lower fixture stand 8 is in clamp head 7 and clip groove
10 opposite positions are provided with the through-hole of rectangle.
The present invention operation principle be：
Bull stick 5 is rotated, 5 rotation driven gear 3 of bull stick rotates；Fixed gear rotation, passes through rack drives clamp rod longitudinal direction
Movement；Clamp rod drives clamp head to move downward, and clamp head clamps equipment to cooperation with foaming fixture slot below；Pass through gear
The mode that rack is meshed can realize it is accurate mobile apply after accurate load by clamp head and the relative position of fixture and into
Capable mechanical grip.
Claims (5)
1. a kind of precision machinery fixture, which is characterized in that include deep groove ball bearing（1）, deep groove ball bearing（1）Front end is by main shaft
（2）It is inserted into, rear end and gear（3）Wheel hub be connected；Main shaft（2）Front end is equipped with hole, is equipped with bull stick 5 in hole, coordinates bull stick（5）With
Just movement, main shaft are transmitted（2）Rear end passes through deep groove ball bearing（1）Axis hole and gear（3）It is connected；Upper fixture frame（4）Top has
Screw is fixed, and there is fixed gear in rear end（3）；Gear（3）With clamp rod（6）The rack of upper end is meshed；Clamp rod（6）Lower end leads to
It crosses internal thread and is connected with clamp head（7）；Clamp head（7）Lower section is equipped with clip groove（10）；Clip groove（10）It is fixed on by screw
Pedestal（9）；Pedestal（9）Top is welded with lower fixture stand（8）.
A kind of 2. precision machinery fixture according to claim 1, which is characterized in that the gear（3）Fixed main shaft（2）
Axis in the middle part of, screens is carried out by oil scraper ring on rear side of gear, the position of gear is fixed；Gear（3）For spur gear wheel, lead to
Cross bull stick（5）Rotation drive its rotation.
A kind of 3. precision machinery fixture according to claim 1, which is characterized in that the bull stick（5）It is driving link, is in
Long cylinder is rod-shaped, is symmetrically installed main shaft（2）Hole in.
A kind of 4. precision machinery fixture according to claim 1, which is characterized in that the clamp rod（6）On be welded with
Rack in oval column, by the transmission of rack, drives clamp rod（6）Longitudinal movement；Precision machinery fixture is by being located at main shaft
（2）On ratchet（11）With with ratchet（11）The ratchet pawl being used cooperatively（12）Realize monodirectional locking.
A kind of 5. precision machinery fixture according to claim 1, which is characterized in that upper fixture frame（4）With lower fixture stand（8）
Fixation is bolted；Lower fixture stand（8）In clamp head（7）With clip groove（10）Opposite position is provided with the through-hole of rectangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720816978.4U CN207480423U (en) | 2017-07-07 | 2017-07-07 | A kind of precision machinery fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720816978.4U CN207480423U (en) | 2017-07-07 | 2017-07-07 | A kind of precision machinery fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207480423U true CN207480423U (en) | 2018-06-12 |
Family
ID=62484278
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720816978.4U Expired - Fee Related CN207480423U (en) | 2017-07-07 | 2017-07-07 | A kind of precision machinery fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207480423U (en) |
-
2017
- 2017-07-07 CN CN201720816978.4U patent/CN207480423U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180612 Termination date: 20190707 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |