CN206643462U - Tapping extension bar - Google Patents
Tapping extension bar Download PDFInfo
- Publication number
- CN206643462U CN206643462U CN201720204454.XU CN201720204454U CN206643462U CN 206643462 U CN206643462 U CN 206643462U CN 201720204454 U CN201720204454 U CN 201720204454U CN 206643462 U CN206643462 U CN 206643462U
- Authority
- CN
- China
- Prior art keywords
- tapping
- rod
- outer support
- extension bar
- support section
- 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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- Massaging Devices (AREA)
Abstract
The utility model aim to provide it is a kind of it is simple in construction, stability is good, tapping extension bar easy to operation and can guarantee that tapping precision.The utility model includes the body of rod（1）, in the body of rod（1）One end be provided with the tapping counterbore being adapted with tapping head（2）, the other end is provided with the connecting portion being engaged with tooth machining unit（3）, in the body of rod（1）Shaft on gap be arranged with least one outer support mechanism, the outer support mechanism includes and the body of rod（1）The fit circle of phase fit（4）, in the fit circle（4）On be surrounded with some support claws with one heart（5）, the support claw（5）Including with the fit circle（4）The linkage section being connected（51）, outer support section（52）And inner support section（53）, the outer support section（52）It is bent outwardly setting, the inner support section（53）Curve inwardly setting.The utility model can be applied to processing equipment field.
Description
Technical field
It the utility model is related to processing equipment field, more particularly to a kind of tapping extension bar.
Background technology
In manufacturing field, tapping is a kind of common technique.For deep hole tapping, generally require the addition before tapping head and add
Stock.However, deviation by a relatively large margin often occurs in tapping for extension bar of the prior art, this cause tapping precision compared with
It is low, or even tapping is unqualified.
Utility model content
Technical problem to be solved in the utility model is overcome the deficiencies in the prior art, there is provided a kind of simple in construction, steady
Qualitative tapping extension bar that is good, easy to operation and can guarantee that tapping precision.
Technical scheme is used by the utility model：The utility model includes the body of rod, is set in one end of the body of rod
There is the tapping counterbore being adapted with tapping head, the other end is provided with the connecting portion being engaged with tooth machining unit, in the bar of the body of rod
Gap is arranged with least one outer support mechanism with it, and the outer support mechanism includes the fit circle with the body of rod phase fit, in institute
State and be surrounded with some support claws on fit circle with one heart, the support claw include be connected with the fit circle linkage section,
Outer support section and inner support section, the outer support section are bent outwardly setting, and the inner support section curves inwardly setting.
Such scheme is visible, and by being arranged outer support mechanism on the shaft of the body of rod, the outer support mechanism concentric ring is around setting
Some support claws enable to the body of rod all the time with treating that the counterbore of tapping is concentric, by the supporting role of the support claw, either
Enter knife stage or tapping stage, can maintain the body of rod to be located on the shaft core position of the counterbore with tapping, stability is good, so as to protect
Tapping precision is demonstrate,proved, its is simple in construction, easy to operation.
Further, the number of the outer support mechanism is arranged to two, axle of two outer support mechanisms in the body of rod
Relative sheathed setting on line.
Such scheme is visible, by two the be oppositely arranged outer support mechanisms, can further strengthen the body of rod radially
On support force, avoid deviation situation occurs occurring, ensure that machining accuracy.
Yet further, the body of rod is made up of 738 steel.As can be seen here, using 738 steels for the body of rod, its hardness can
Meet the requirement of processing, ensure tapping precision.
Further, connection through hole has been radially arranged on the connecting portion, has been provided with the side wall of the tapping counterbore
Hole is fastened, the connection through hole and the fastening hole are screwed hole.
Such scheme is visible, by connecting through hole and fastening the setting in hole, can ensure the process safety in process
Property.
Brief description of the drawings
Fig. 1 is easy structure schematic diagram of the present utility model.
Embodiment
As shown in figure 1, in the present embodiment, the tapping extension bar includes the body of rod 1, and the body of rod 1 is made up of 738 steel.
One end of the body of rod 1 is provided with the tapping counterbore 2 being adapted with tapping head, and the other end is provided with the company being engaged with tooth machining unit
Socket part 3.Connection through hole 6 has been radially arranged on the connecting portion 3, has been provided with the side wall of the tapping counterbore 2 and fastens hole 7, institute
It is screwed hole to state connection through hole 6 and the fastening hole 7.Gap is arranged with least one outer support on the shaft of the body of rod 1
Mechanism, in the present embodiment, the number of the outer support mechanism are arranged to two, and two outer support mechanisms are in the body of rod 1
Relative sheathed setting on axis.The outer support mechanism includes the fit circle 4 with the phase fit of the body of rod 1, on the fit circle 4
It is surrounded with some support claws 5 with one heart, linkage section 51 that the support claw 5 includes being connected with the fit circle 4, outer support section
52 and inner support section 53, the outer support section 52 is bent outwardly setting, and the inner support section 53 curves inwardly setting.
The utility model when in use, by the supporting role of support claw 5, enables to the body of rod 1 to maintain all the time to be added
On the axis of the counterbore of work, so as to ensure that the precision of tapping work.
The utility model can be applied to processing equipment field.
Claims (4)
- A kind of 1. tapping extension bar, it is characterised in that：It includes the body of rod（1）, in the body of rod（1）One end be provided with and tapping The tapping counterbore that head is adapted（2）, the other end is provided with the connecting portion being engaged with tooth machining unit（3）, in the body of rod（1）Bar Gap is arranged with least one outer support mechanism with it, and the outer support mechanism includes and the body of rod（1）The fit circle of phase fit （4）, in the fit circle（4）On be surrounded with some support claws with one heart（5）, the support claw（5）Including with the fit Circle（4）The linkage section being connected（51）, outer support section（52）And inner support section（53）, the outer support section（52）It is bent outwardly setting, The inner support section（53）Curve inwardly setting.
- 2. tapping extension bar according to claim 1, it is characterised in that：The number of the outer support mechanism is arranged to two, Two outer support mechanisms are in the body of rod（1）Axis on relative sheathed setting.
- 3. tapping extension bar according to claim 1, it is characterised in that：The body of rod（1）It is made up of 738 steel.
- 4. tapping extension bar according to claim 1, it is characterised in that：The connecting portion（3）On be radially arranged connection Through hole（6）, the tapping counterbore（2）Side wall on be provided with fasten hole（7）, the connection through hole（6）And the fastening hole（7） It is screwed hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720204454.XU CN206643462U (en) | 2017-03-04 | 2017-03-04 | Tapping extension bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720204454.XU CN206643462U (en) | 2017-03-04 | 2017-03-04 | Tapping extension bar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206643462U true CN206643462U (en) | 2017-11-17 |
Family
ID=60281284
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720204454.XU Expired - Fee Related CN206643462U (en) | 2017-03-04 | 2017-03-04 | Tapping extension bar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206643462U (en) |
-
2017
- 2017-03-04 CN CN201720204454.XU patent/CN206643462U/en not_active Expired - Fee Related
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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 |
Granted publication date: 20171117 Termination date: 20200304 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |