CN204985580U - Take lead screw of chip groove and adjustable length - Google Patents
Take lead screw of chip groove and adjustable length Download PDFInfo
- Publication number
- CN204985580U CN204985580U CN201520473172.0U CN201520473172U CN204985580U CN 204985580 U CN204985580 U CN 204985580U CN 201520473172 U CN201520473172 U CN 201520473172U CN 204985580 U CN204985580 U CN 204985580U
- Authority
- CN
- China
- Prior art keywords
- screw mandrel
- groove
- lead screw
- connecting rod
- barb
- 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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- Mutual Connection Of Rods And Tubes (AREA)
Abstract
The utility model discloses a take lead screw of chip groove and adjustable length, including lead screw body and connecting rod, the screw thread portion of one end for being equipped with the external screw thread of lead screw body, screw thread portion on seted up the chip groove, the other end of lead screw body is equipped with connecting portion, connecting portion constitute by a plurality of connecting blocks that are the circumference equipartition, the inner of connecting block is connected with lead screw body integrated into one piece, the outer end of connecting block is equipped with the barb, the one end of connecting rod is equipped with the installation keyway, the other end of connecting rod is equipped with the confession connecting portion male connecting hole on the lead screw body, just on the lateral wall of connecting hole still along the linear equipartition of axis direction have a plurality of with the barb forms to collude joins in marriage fixed slot. Through the structure of the utility model, the piece that does benefit to the production that is provided with of chip groove is in time discharged, simultaneously the utility model discloses still can realize the flexible regulation of the whole length of lead screw to make the lead screw can be applicable to more extensive application scenario.
Description
Technical field
The utility model relates to a kind of screw mandrel.
Background technique
At present, screw mandrel is widely used in the machinery of every field, but existing screw mandrel is integrate shaped type structure, and its length cannot regulate, thus there is narrow limitation in practical application.Meanwhile, the outside thread of existing screw mandrel lacks corresponding chip discharging structure, the chip therefore causing transmission to produce cannot be discharged in time, thus will affect the normal transmission of screw mandrel when chip deposits.
Summary of the invention
For the deficiencies in the prior art, the utility model provides a kind of band groove and length-adjustable screw mandrel.
For achieving the above object, the utility model provides a kind of band groove and length-adjustable screw mandrel, include screw mandrel body and connecting rod, one end of described screw mandrel body is for being provided with externally threaded screw section, described screw section offers groove, the other end of described screw mandrel body is provided with joint, described joint is made up of some circumferentially uniform contiguous blocks, the inner of described contiguous block is connected with this body by integral forming of screw mandrel, the outer end of described contiguous block is provided with barb, one end of described connecting rod is provided with installation keyway, the other end of described connecting rod is provided with the attachment hole inserted for the joint on described screw mandrel body, and the sidewall of described attachment hole is also linearly evenly equipped with in the axial direction several and described barb and is formed to hook and join fixing groove.
The beneficial effects of the utility model are: adopt said structure, and first because the utility model is provided with groove on the screw section of screw mandrel, the chip being therefore conducive to producing is discharged in time.Secondly, because screw mandrel provided by the utility model is that the screw mandrel body that arranged by split and connecting rod are formed, therefore join fixing by the hook of diverse location groove on contiguous block barb on screw mandrel body and connecting rod, the telescopic adjustment of screw mandrel entire length can be realized, thus make screw mandrel can be applicable to application widely.
The cross section that the utility model can be set to described groove further can, for triangular structure wide outside and narrow inside, can certainly be trapezium structure wide outside and narrow inside.
It is radial through on the outer peripheral surface of connecting rod that the utility model also can be set to described groove further.Such setting, not only can make to be formed between barb and groove hook more solid and reliablely join fixing, and the assembly connection be conducive between barb and groove or fractionation.
The utility model also can be set to described contiguous block further and be preferably two pieces, and has clamped Compress Spring between two pieces of contiguous blocks.Such setting, under the effect of Compress Spring, can effectively prevent barb from skidding off in groove.
The utility model also can be set to described Compress Spring correspondence further and be positioned at the inner side that contiguous block is provided with barb, and the inner side that described contiguous block is provided with barb is also provided with the projection of stationary positioned Compress Spring.Such setting, can make the spring energy of Compress Spring directly act on barb, and the setting of projection, then can form stationary positioned effectively to Compress Spring.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is wherein a kind of A-A sectional drawing of Fig. 1;
Fig. 3 is the another kind of A-A sectional drawing of Fig. 1.
Embodiment
Give a kind of band groove as shown in Figure 1 and length-adjustable screw mandrel, include screw mandrel body 1 and connecting rod 2, one end of described screw mandrel body 1 is for being provided with externally threaded screw section 14, described screw section 14 offers groove 141, the cross section of described groove 141 can be triangular structure wide outside and narrow inside as shown in Figure 2, also can be trapezium structure wide outside and narrow inside certainly as shown in Figure 3.The other end of described screw mandrel body 1 is provided with joint, described joint is made up of some circumferentially uniform contiguous blocks 11, the inner of described contiguous block 11 is connected with screw mandrel body 1 is one-body molded, the outer end of described contiguous block 11 is provided with barb 12, one end of described connecting rod 2 is provided with installs keyway 21, the other end of described connecting rod 2 is provided with the attachment hole 22 inserted for the joint on described screw mandrel body 1, and the sidewall of described attachment hole 22 is also linearly evenly equipped with in the axial direction several and described barb 12 and is formed to hook and join fixing groove 23, and described groove 23 is radial through on the outer peripheral surface of connecting rod 2.
Described contiguous block 11 is preferably two pieces, and has clamped Compress Spring 3 between two pieces of contiguous blocks 11.Described Compress Spring 3 correspondence is positioned at the inner side that contiguous block 11 is provided with barb 12, and the inner side that described contiguous block 11 is provided with barb 12 is also provided with the projection 13 of stationary positioned Compress Spring 3.
Adopt said structure, first because the utility model is provided with groove 141 on the screw section 14 of screw mandrel body 1, the chip being therefore conducive to producing is discharged in time.Secondly, because screw mandrel provided by the utility model is that the screw mandrel body 1 that arranged by split and connecting rod 2 are formed, therefore join fixing by contiguous block barb on screw mandrel body 1 12 and the hook of diverse location groove 23 on connecting rod 2, the telescopic adjustment of screw mandrel entire length can be realized, thus make screw mandrel can be applicable to application widely.
Claims (6)
1. a band groove and length-adjustable screw mandrel, it is characterized in that: include screw mandrel body and connecting rod, one end of described screw mandrel body is for being provided with externally threaded screw section, described screw section offers groove, the other end of described screw mandrel body is provided with joint, described joint is made up of some circumferentially uniform contiguous blocks, the inner of described contiguous block is connected with this body by integral forming of screw mandrel, the outer end of described contiguous block is provided with barb, one end of described connecting rod is provided with installation keyway, the other end of described connecting rod is provided with the attachment hole inserted for the joint on described screw mandrel body, and the sidewall of described attachment hole is also linearly evenly equipped with in the axial direction several and described barb and is formed to hook and join fixing groove.
2. one according to claim 1 is with groove and length-adjustable screw mandrel, it is characterized in that: the cross section of described groove is triangular structure wide outside and narrow inside.
3. one according to claim 1 is with groove and length-adjustable screw mandrel, it is characterized in that: the cross section of described groove is trapezium structure wide outside and narrow inside.
4. one according to claim 1 is with groove and length-adjustable screw mandrel, it is characterized in that: described groove is radial through on the outer peripheral surface of connecting rod.
5. one according to claim 1 is with groove and length-adjustable screw mandrel, it is characterized in that: described contiguous block is two pieces, and has clamped Compress Spring between two pieces of contiguous blocks.
6. one according to claim 5 is with groove and length-adjustable screw mandrel, it is characterized in that: described Compress Spring correspondence is positioned at the inner side that contiguous block is provided with barb, and the inner side that described contiguous block is provided with barb is also provided with the projection of stationary positioned Compress Spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520473172.0U CN204985580U (en) | 2015-06-30 | 2015-06-30 | Take lead screw of chip groove and adjustable length |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520473172.0U CN204985580U (en) | 2015-06-30 | 2015-06-30 | Take lead screw of chip groove and adjustable length |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204985580U true CN204985580U (en) | 2016-01-20 |
Family
ID=55119951
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520473172.0U Expired - Fee Related CN204985580U (en) | 2015-06-30 | 2015-06-30 | Take lead screw of chip groove and adjustable length |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204985580U (en) |
-
2015
- 2015-06-30 CN CN201520473172.0U patent/CN204985580U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160120 Termination date: 20160630 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |