CN203892496U - Nut seat fastening device - Google Patents
Nut seat fastening device Download PDFInfo
- Publication number
- CN203892496U CN203892496U CN201420247336.3U CN201420247336U CN203892496U CN 203892496 U CN203892496 U CN 203892496U CN 201420247336 U CN201420247336 U CN 201420247336U CN 203892496 U CN203892496 U CN 203892496U
- Authority
- CN
- China
- Prior art keywords
- nut seat
- positioning hole
- locating stud
- fixed block
- securing means
- 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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- Connection Of Plates (AREA)
Abstract
The utility model relates to a nut seat fastening device which comprises a nut seat, a fixing part, two fastening bolts and a positioning pin. Two through holes are formed in the fixing part, two screw holes are formed in the nut seat, and the two through holes of the fixing part are in one-to-one correspondence to the two screw holes of the nut seat. The two fastening bolts respectively penetrate the through holes of the fixing part and are screwed in the corresponding screw holes of the nut seat until the nut seat is connected with the fixing part in a fastened manner. A positioning hole is formed in the fixing part, and a positioning groove which corresponds to the positioning hole is formed in the nut seat; the positioning pin is provided with a polygonal pin head; the pin head of the positioning pin penetrates the positioning hole and is clamped in the positioning groove, a pin tail of the positioning pin is in interference fit with the positioning hole at the moment, and the pin head of the positioning pin is in interference fit with the positioning groove. The nut seat fastening device has the advantages of simple structure, low cost and convenience in implementation.
Description
Technical field
The utility model relates to a kind of securing means of member, particularly relates to a kind of securing means of nut seat.
Background technique
Screw-nut mechanism claims again screw-drive mechanism.It is mainly used to by rotatablely moving, be transformed to straight line motion or straight line motion is transformed to and is rotatablely moved.Have and take transferring energy as main (as screw press, jack etc.); Also having the motion of transmitting is main (as the feed screw of machine table); Adjust in addition the screw-drive mechanism of relative position between part etc.Ball screw pair not only has outside requirement the transmission accuracy of single direction own, and its axial clearance is also had to strict demand, to guarantee its reversing drive precision.The axial clearance of ball screw pair is that when carrying is in the caused nut seat displacement amount of resiliently deformable of ball and raceway profile point of contact and the summation of nut seat original interstice.In affecting all factors of axial clearance size, the fastening degree between nut seat and fixed block is most important.Conventionally adopt at present clamping bolt to carry out pretension to nut seat, so that resiliently deformable is controlled in inferior limit, to reduce or to eliminate axial clearance, and can improve the rigidity of ball screw pair.But in long-term engineering practice, find, because clamping bolt there will be loosening in long-term vibrations, thereby the resiliently deformable of ball and raceway profile point of contact can become large, and then increased axial clearance, precision on screw-nut mechanism driving has caused impact, especially for take, transmit the screw-nut mechanism that super large energy is object, the increase of axial clearance even may cause danger.
Model utility content
The technical problems to be solved in the utility model be to provide a kind of simple in structure, cost is low, implement nut seat securing means easily.
A nut seat securing means, comprising: nut seat, fixed block.Described fixed block is provided with two through holes, and described nut seat is provided with two screws, and two through holes of fixed block are corresponding one by one with two screws of nut seat.Also comprise two clamping bolts, described two clamping bolts are respectively through fixed block through hole nut seat screw corresponding to precession, until nut seat and fixed block are fastenedly connected.Described fixed block is provided with a positioning hole, and described nut seat is provided with a locating slot corresponding with positioning hole; Also comprise a locating stud, the plunger of described locating stud is many ribs type; The plunger of described locating stud is through positioning hole and stick into locating slot, now the pin tail of locating stud and positioning hole interference fit, the plunger of locating stud and locating slot interference fit.
The utility model nut seat securing means, wherein said locating stud is internal thread locating stud.
The utility model nut seat securing means, the plunger cross section of wherein said locating stud is the closed loop of triangle or straight line and circular arc composition.
The utility model nut seat securing means, wherein said positioning hole inlet is also provided with a door, and described door is threaded with positioning hole inlet.
The utility model nut seat securing means difference from prior art is: the utility model nut seat securing means has increased a locating stud on the basis of prior art nut seat securing means, especially the locating stud plunger increasing is many ribs type, the annexation of having reinforced nut seat and fixed block on the one hand, reduce the axial clearance of nut seat, improved the precision of screw-nut transmission; On the other hand; the locating stud increasing has played the effect of second class protection, and when the clamping bolt of nut seat and fixed block becomes flexible, locating stud has just played the effect of interim fastening nut seat and fixed block; avoid the generation of nut seat from the situation of fixing piece from falling, protected dirivig member.
The utility model nut seat securing means positioning hole inlet is also provided with a door, and restriction has been done in its axial motion to locating stud, prevents in mechanical vibration environment the situation that locating stud comes off.
Below in conjunction with accompanying drawing, the utility model nut seat securing means is described further.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model nut seat securing means;
Fig. 2 is the structural drawing of locating stud in the utility model nut seat securing means.
Embodiment
As shown in Figure 1 and Figure 2, the utility model nut seat positioning device comprises: nut seat 6, fixed block 1; Fixed block 1 is provided with two through holes, and nut seat is provided with two screws, and two through holes of fixed block 1 are corresponding one by one with two screws of nut seat 6; Also comprise that 2, two clamping bolts 2 of two clamping bolts are respectively through the screw of the through hole of fixed block 1 nut seat 6 corresponding to precession, until nut seat 6 and fixed block 1 are fastenedly connected; Fixed block 1 is also provided with a positioning hole, and nut seat 6 is also provided with a locating slot corresponding with positioning hole; Also comprise an internal thread locating stud 3, locating stud 3 comprises plunger 7 and pin tail 8; Plunger 7 is through positioning hole and stick into locating slot, now, and pin tail 8 and positioning hole interference fit, plunger 7 and locating slot interference fit.Positioning hole inlet is also provided with a door 5, door 5 with positioning hole inlet for being threaded.
The utility model nut seat positioning device, the top of wherein selling tail 8 is also provided with a screw 4, its objective is in needs, can easily locating stud 3 be taken out from positioning hole by this screw 4.Plunger 7 is that the part cutting by stock forms, and the shape of cross section of plunger 7 can be that triangle, pentagon or other have prismatic shape, can be even also straight line and the closed loop of circular arc composition.Why select plunger 7 for many ribs type, consider that exactly the locating stud location of many ribs type is more accurate.
The utility model nut seat securing means has increased a locating stud 3 on the basis of prior art nut seat securing means, and the plunger 7 of the locating stud 3 increasing is many ribs type, reinforced on the one hand the annexation of nut seat 6 with fixed block 1, reduce the axial clearance of nut seat 6, improved the precision of screw-nut transmission; On the other hand; the locating stud 3 increasing has played the effect of second class protection; when the clamping bolt 2 of nut seat 6 and fixed block 1 becomes flexible; locating stud 3 has just played the effect of connecting filament female seat 6 with fixed block 1 temporarily; avoided the generation of the situation that nut seat 6 comes off from fixed block 1, the protective action of having played to dirivig member.The utility model nut seat securing means positioning hole inlet is provided with a door 5, and restriction has been done in its axial motion to locating stud 3, prevents in mechanical vibration environment the situation that locating stud 3 comes off.
Above-described embodiment is described preferred implementation of the present utility model; not scope of the present utility model is limited; do not departing under the prerequisite of the utility model design spirit; various distortion and improvement that those of ordinary skills make the technical solution of the utility model, all should fall in the definite protection domain of the utility model claims.
Claims (4)
1. a nut seat securing means, comprising: nut seat, fixed block; Described fixed block is provided with two through holes, and described nut seat is provided with two screws, and two through holes of fixed block are corresponding one by one with two screws of nut seat; Also comprise two clamping bolts, described two clamping bolts are respectively through fixed block through hole nut seat screw corresponding to precession, until nut seat and fixed block are fastenedly connected; It is characterized in that: described fixed block is provided with a positioning hole, described nut seat is provided with a locating slot corresponding with positioning hole; Also comprise a locating stud, the plunger of described locating stud is many ribs type; The plunger of described locating stud is through positioning hole and stick into locating slot, now the pin tail of locating stud and positioning hole interference fit, the plunger of locating stud and locating slot interference fit.
2. nut seat securing means according to claim 1, is characterized in that: described locating stud is internal thread locating stud.
3. nut seat securing means according to claim 1, is characterized in that: the plunger cross section of described locating stud is the closed loop of triangle or straight line and circular arc composition.
4. nut seat securing means according to claim 1, is characterized in that: described positioning hole inlet is also provided with a door, and described door is threaded with positioning hole inlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420247336.3U CN203892496U (en) | 2014-05-15 | 2014-05-15 | Nut seat fastening device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420247336.3U CN203892496U (en) | 2014-05-15 | 2014-05-15 | Nut seat fastening device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203892496U true CN203892496U (en) | 2014-10-22 |
Family
ID=51718904
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420247336.3U Expired - Fee Related CN203892496U (en) | 2014-05-15 | 2014-05-15 | Nut seat fastening device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203892496U (en) |
-
2014
- 2014-05-15 CN CN201420247336.3U patent/CN203892496U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: JINGDA HEBEI MACHINE TOOL MANUFACTURING CO., LTD. Free format text: FORMER NAME: BOTOU JINGDA MEASURING TOOL CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 062150 No. 4 road, CNC Machine Tool Industrial Park, Botou Economic Development Zone, Hebei, Cangzhou Patentee after: JINGDA HEBEI MACHINE TOOLS MANUFACTURING CO., LTD. Address before: 062150, Hebei, Cangzhou province Botou City Station Street Post and telecommunications building on the east side Patentee before: BOTOU JINGDA TOOLS CO., LTD. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141022 Termination date: 20210515 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |