CN207982470U - A kind of chasing bar for internal thread machining - Google Patents
A kind of chasing bar for internal thread machining Download PDFInfo
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- CN207982470U CN207982470U CN201721759919.4U CN201721759919U CN207982470U CN 207982470 U CN207982470 U CN 207982470U CN 201721759919 U CN201721759919 U CN 201721759919U CN 207982470 U CN207982470 U CN 207982470U
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- screw tap
- extension rod
- mounting plate
- internal thread
- screw
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Abstract
A kind of chasing bar for internal thread machining, including support leg, mounting plate, screw tap extension rod and fastening nut, wherein support leg is set to the lower end of mounting plate, is supported to mounting plate；Mounting plate is equipped with mounting hole, and the upper end of screw tap extension rod passes through mounting plate by mounting hole；Fasten the lower end that nut is set to screw tap extension rod；In use, screw tap is installed on the lower end of screw tap extension rod, fastened by fastening nut.Pass through the implementation of the utility model, screw tap is fixedly installed on screw tap extension rod and screw tap extension rod is installed in the bindiny mechanism of mounting plate and support leg, the machined surface of tapping processing is stabilized, meanwhile, installation is fixed to screw tap extension rod using two deep groove ball bearings, it ensure that the requirement of its verticality, when carrying out manual tapping, it ensure that the verticality of screw thread, improve work efficiency, dependence of the product quality to operator is greatly reduced, ensure that the quality of product.
Description
Technical field
The utility model belongs to field of machining, and in particular to a kind of chasing bar for internal thread machining.
Background technology
In tradition machinery manufacture field, threaded connection is that one kind is removably fixedly connected, and has simple in structure, connection
Reliably, the advantages that being convenient to mount and dismount, capable of realizing self-locking, large axial force is provided, therefore be widely used to fasten in machine components and lead
In domain.During screw thread process, due to the difference of internal and external threads, dividing has different processing methods, wherein in minor diameter
When screw thread process, it is tapping that can only rely on screw tap processing, and tapping can be used for lathe, and drilling machine also may be used in the machine toolings such as tapping machine
In being operated for pincers worker manual processing.When pincers worker craft screwing operation, there is processing flexibly, it can machining shape complexity and high-precision
Part, invest the advantages that small, but there are low production efficiencies, labor intensity is larger, the unstable disadvantage of processing quality, therefore
For small lot, complex-shaped, when the higher part tapping of required precision is processed, pincers worker has preferably relative to machine tooling
Production and processing effect the characteristics of due to its manual processing, be easy to cause in tapping process, due to behaviour but in tapping
The problem of author's working experience and work fatigue etc. causes screw tap to attack disconnected and screw thread hole verticality requirement and be not achieved etc. and asks
Topic, the consequences such as damage and part rejection to cause tool, and its processing quality varies with each individual, and part quality is unstable.
Utility model content
In order to solve the above technical problems, the utility model provides a kind of chasing bar for internal thread machining.
The utility model is achieved by the following technical programs.
A kind of chasing bar for internal thread machining provided by the utility model, including support leg, mounting plate, screw tap prolong
Stock and fastening nut, wherein support leg is set to the lower end of mounting plate, is supported to mounting plate；Mounting plate is equipped with peace
Hole is filled, the upper end of screw tap extension rod passes through mounting plate by mounting hole；Fasten the lower end that nut is set to screw tap extension rod；It uses
When, screw tap is installed on the lower end of screw tap extension rod, is fastened by fastening nut.
The support leg is multiple, each support leg is fastenedly connected by a mounting screw with mounting plate.
It is equipped with counter sink at the mounting hole of the mounting plate, deep groove ball bearing, the screw tap extension rod are equipped in counter sink
It is installed in deep groove ball bearing.
The counter sink is two, is respectively arranged at the both side surface of mounting plate, one is both provided in each counter sink
A deep groove ball bearing.
The deep groove ball bearing is that interference fit is installed with counter sink.
The lower end of the screw tap extension rod is equipped with external screw thread, screw tap mounting hole is equipped with along axis direction, along screw tap mounting hole
Hole wall direction be provided with cross recess；Be equipped in the fastening nut with the matched internal thread of external screw thread, when carrying out screw tap installation,
Screw tap is placed in screw tap mounting hole, by screwing the lower end for fastening nut and screw tap being made to be fastened on screw tap extension rod.
The top of the screw tap mounting hole is equipped with outer conical surface, fastens and is equipped with internal conical surface in the internal thread hole of nut, peace
When dress, screwing fastening nut makes outer conical surface and internal conical surface snug fit, completes to fasten installation of the nut in screw tap extension rod
Positioning.
The upper end of the screw tap extension rod is equipped with cubic boss.
The both sides for fastening nut are equipped with flat gesture plane.
The beneficial effects of the utility model are：By the implementation of the utility model, screw tap is fixedly installed in screw tap and is prolonged
It is installed in the bindiny mechanism of mounting plate and support leg on stock and by screw tap extension rod, stabilizes the machined surface of tapping processing,
Meanwhile installation is fixed to screw tap extension rod using two deep groove ball bearings, it ensure that the requirement of its verticality, carrying out hand
When work tapping, it ensure that the verticality of screw thread, improve work efficiency, greatly reduce dependence of the product quality to operator
Property, it ensure that the quality of product.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the screw tap extension rod structural schematic diagram of the utility model；
Fig. 3 is the fastening nut sectional view of the utility model；
Fig. 4 is the fastening nut vertical view of the utility model；
In figure：1- support legs, 2- mounting plates, 3- screw tap extension rods, 4- fasten nut, 5- screws, 21- counter sinks, 22- depths
Ditch ball bearing, the four directions 31- boss, 32- screw tap mounting holes, 33- outer conical surfaces, 34- external screw threads, 35- cross recesses, 41- flat gestures are flat
Face, 42- internal conical surfaces, 43- internal threads.
Specific implementation mode
Be described further below the technical solution of the utility model, but claimed range be not limited to it is described.
As shown in Figs 1-4, a kind of chasing bar for internal thread machining, including support leg 1, mounting plate 2, screw tap extend
Bar 3 and fastening nut 4, wherein support leg 1 is set to the lower end of mounting plate 2, is supported to mounting plate 2；It is set on mounting plate 2
There are mounting hole, the upper end of screw tap extension rod 3 to pass through mounting plate 2 by mounting hole；It fastens nut 4 and is set to screw tap extension rod 3
Lower end；In use, screw tap is installed on the lower end of screw tap extension rod 3, fastened by fastening nut 4.
The support leg 1 is multiple, each support leg 1 is fastenedly connected by a mounting screw 5 with mounting plate 2.
It is equipped with counter sink 21 at the mounting hole of the mounting plate 2, deep groove ball bearing 22, the screw tap are equipped in counter sink 21
Extension rod 3 is installed in deep groove ball bearing 22.
The counter sink 21 is two, is respectively arranged at the both side surface of mounting plate 2, is both provided in each counter sink
One deep groove ball bearing 22.
The deep groove ball bearing 22 is that interference fit is installed with counter sink 21.
The lower end of the screw tap extension rod 3 is equipped with external screw thread 34, is equipped with screw tap mounting hole 32 along axis direction, pacifies along screw tap
The hole wall direction in dress hole 32 is provided with cross recess 35；Be equipped in the fastening nut 4 with 34 matched internal thread 43 of external screw thread, into
When row screw tap is installed, screw tap is placed in screw tap mounting hole 32, nut 4 is fastened by screwing and makes screw tap be fastened on screw tap to prolong
The lower end of stock 3.
The top of the screw tap mounting hole 32 is equipped with outer conical surface 33, fastens and is equipped with female cone in the internal thread hole of nut 4
Face 42 when installation, screws and fastens nut 4 and make outer conical surface 33 and 42 snug fit of internal conical surface, complete fastening nut 4 in screw tap
The installation of extension rod 3 positions.
The upper end of the screw tap extension rod 3 is equipped with cubic boss 31.
The both sides for fastening nut 4 are equipped with flat gesture plane 41.
When it is implemented, support leg 1 is by 5 connection plate 2 of mounting screw, it is heavy that the both sides up and down of mounting plate 2 are equipped with
Head bore 21 is mounted on deep groove ball bearing 22, the wherein effect of deep groove ball bearing 22 in counter sink 21 primarily to ensureing silk
The upper end of the verticality and guiding role of cone extension rod 3, screw tap extension rod 3 is cubic boss 31, and effect is mainly and square
Just can transmit torque, in 3 bottom end of screw tap extension rod, be equipped with circular conical surface 42, and have external screw thread in 42 post-processing of circular conical surface
34 and it which is provided with cross recess 35 and cut open bottom part, fasten nut 4 and be machined with internal conical surface 42 and internal thread 43, using
It is middle to be put into screw tap in the screw tap mounting hole 32 of 3 bottom end of screw tap extension rod, nut 4 will be fastened and screw tap extends the cooperation installation of 3 bars,
The flat gesture plane 41 on nut 4 is fastened, for facilitating clamping to fasten nut 4, when fastening the screw-in screw tap extension rod 3 of nut 4, silk
The outer conical surface 33 for boring extension rod 3 and the internal conical surface 42 for fastening nut 4 mutually squeeze, since 3 bottom end of screw tap extension rod is by ten
Word slot 35 is cut open, therefore the bottom end of screw tap extension rod 3 will tighten to clamp screw tap, to have the function that fixed screw tap.
Screw tap is fixedly clamped by the utility model technology using the mutual cooperation for fastening nut 4 and screw tap extension rod 3
On screw tap extension rod 3, ensure the verticality of screw tap extension rod 3 using two deep groove ball bearings 22, while deep groove ball bearing 22 can
Service precision is improved to avoid the friction of screw tap extension rod 3 and mounting plate 2, therefore the surface of the device plug tap extension rod 3 is thick
Rugosity is relatively smooth due to needing to need to ensure with the mutual cooperation of deep groove ball bearing 22, and deep groove ball bearing 22 is entirely attacked as guarantee
The vital part of the verticality of silk device, it should be ensured that two counter sinks 31 and centre above and below on its installation site, that is, mounting plate 2
Through-hole is required relative to the verticality of 2 plane of mounting plate and concentricity requirement.1 lower planes of 2 lower plane of mounting plate and support leg
Planarity requirements ensure the levelness of entire supporting surface, the planarity requirements for passing through entire plane ensure and screw tap extension rod
3 verticalities require guarantee, and in processing, part is fixed by fixture clamping, is placed it in below chasing bar, ensures support leg 1
Level transmits torque using the cubic boss 31 of screw tap extension rod 3, right under the limit and rotation of two deep groove ball bearings 22
Workpiece carries out tapping operation, and the requirement for the guarantee screw thread verticality that can stablize improves product quality.
Claims (9)
1. a kind of chasing bar for internal thread machining, it is characterised in that：Prolong including support leg (1), mounting plate (2), screw tap
Stock (3) and fastening nut (4), wherein support leg (1) is set to the lower end of mounting plate (2), is supported to mounting plate (2)；
Mounting plate (2) is equipped with mounting hole, and the upper end of screw tap extension rod (3) passes through mounting plate (2) by mounting hole；Fasten nut (4)
It is set to the lower end of screw tap extension rod (3)；In use, screw tap is installed on the lower end of screw tap extension rod (3), by fastening nut
(4) it is fastened.
2. being used for the chasing bar of internal thread machining as described in claim 1, it is characterised in that：The support leg (1) is more
A, each support leg (1) is fastenedly connected by a mounting screw (5) with mounting plate (2).
3. being used for the chasing bar of internal thread machining as described in claim 1, it is characterised in that：The peace of the mounting plate (2)
It fills and is equipped with counter sink (21) at hole, be equipped with deep groove ball bearing (22) in counter sink (21), the screw tap extension rod (3) is installed on depth
In ditch ball bearing (22).
4. being used for the chasing bar of internal thread machining as claimed in claim 3, it is characterised in that：The counter sink (21) is two
It is a, it is respectively arranged at the both side surface of mounting plate (2), a deep groove ball bearing (22) is both provided in each counter sink.
5. as claim 3-4 any one of them is used for the chasing bar of internal thread machining, it is characterised in that：The deep-groove ball
Bearing (22) is that interference fit is installed with counter sink (21).
6. being used for the chasing bar of internal thread machining as described in claim 1, it is characterised in that：The screw tap extension rod (3)
Lower end be equipped with external screw thread (34), along axis direction be equipped with screw tap mounting hole (32), along the hole wall direction of screw tap mounting hole (32)
It is provided with cross recess (35)；It is equipped in the fastening nut (4) and external screw thread (34) matched internal thread (43), progress screw tap peace
When dress, screw tap is placed in screw tap mounting hole (32), so that screw tap is fastened on screw tap extension rod by screwing fastening nut (4)
(3) lower end.
7. being used for the chasing bar of internal thread machining as claimed in claim 6, it is characterised in that：The screw tap mounting hole (32)
Top be equipped with outer conical surface (33), fasten and be equipped with internal conical surface (42) in the internal thread hole of nut (4), when installation, screw solid
Tight nut (4) makes outer conical surface (33) and internal conical surface (42) snug fit, completes to fasten nut (4) in screw tap extension rod (3)
Installation positioning.
8. being used for the chasing bar of internal thread machining as described in claim 1, it is characterised in that：The screw tap extension rod (3)
Upper end be equipped with cubic boss (31).
9. being used for the chasing bar of internal thread machining as described in claim 1, it is characterised in that：The fastening nut (4)
Both sides are equipped with flat gesture plane (41).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721759919.4U CN207982470U (en) | 2017-12-16 | 2017-12-16 | A kind of chasing bar for internal thread machining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721759919.4U CN207982470U (en) | 2017-12-16 | 2017-12-16 | A kind of chasing bar for internal thread machining |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207982470U true CN207982470U (en) | 2018-10-19 |
Family
ID=63816742
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721759919.4U Active CN207982470U (en) | 2017-12-16 | 2017-12-16 | A kind of chasing bar for internal thread machining |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207982470U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107824909A (en) * | 2017-12-16 | 2018-03-23 | 贵州航天风华精密设备有限公司 | A kind of chasing bar for internal thread machining |
-
2017
- 2017-12-16 CN CN201721759919.4U patent/CN207982470U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107824909A (en) * | 2017-12-16 | 2018-03-23 | 贵州航天风华精密设备有限公司 | A kind of chasing bar for internal thread machining |
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