CN208162791U - Tooth machining unit - Google Patents
Tooth machining unit Download PDFInfo
- Publication number
- CN208162791U CN208162791U CN201820331595.2U CN201820331595U CN208162791U CN 208162791 U CN208162791 U CN 208162791U CN 201820331595 U CN201820331595 U CN 201820331595U CN 208162791 U CN208162791 U CN 208162791U
- Authority
- CN
- China
- Prior art keywords
- elastic portion
- shaft
- transfer tube
- machining unit
- tooth machining
- 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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Abstract
The utility model relates to tapping field more particularly to attachment devices, tooth machining unit and multi-shaft device.A kind of tooth machining unit, including driving device and attachment device, the driving device is for driving the shaft of the attachment device to rotate, which includes the connecting cylinder for connecting screw tap, which further includes the first elastic portion, the second elastic portion；First elastic portion is located between the transmission end surfaces and the shaft ring, and second elastic portion is for keeping the shaft ring, the transfer tube to contact with first elastic portion.In the present invention, the first elastic portion is provided in transmission end surfaces and shaft interannular, when screw tap drilling, transfer tube and shaft ring squeeze the first elastic portion, the opposite scope of activities of transfer tube and shaft ring is smaller, and in the withdrawing stage, ensure that tapping has a preferable precision the scope of activities of feed stage screw tap is smaller, and the larger screw tap of scope of activities of withdrawing stage screw tap can be according to machined hole shape or screw thread automatic adjusting position.
Description
Technical field
The utility model relates to tapping field more particularly to attachment devices.
Background technique
Tooth machining unit be it is a kind of in the various through-holes with different size such as parts shell, equipment end face, nut, ring flange or
The medial surface in the hole of the part of blind hole processes internal screw thread, screw or the machining equipment for making tooth buckle.Tooth machining unit is also named tapping
Machine, screw thread tooth machining unit, thread tapping machine, automatic tapping machine etc..
Chinese utility model patent specification CN205437386U discloses a kind of tooth machining unit, referring to Figure 1, wherein tapping
Bar 7 (attachment device for being equivalent to the application) includes tapping ontology 71, drive rod 72, tapping cone 73, and tapping cone 73 is mounted on
71 bottom of tapping ontology, the top of drive rod 72 are connected on tapping multi-shaft device, and tapping ontology offers at 71 upper surface axle center
With the matched atrium 711 of drive rod 72, the bottom of drive rod 72 is vertically slidably connected in atrium 711, tapping ontology
Buffer spring 74 is connected between 71 and drive rod 72.Accommodating chamber 721, buffering elastic are offered at the axle center of 72 lower end surface of drive rod
The top of spring 74 is connected in accommodating chamber 721, and the bottom of buffer spring 74 is connected in atrium 711, tapping ontology 71 and biography
It can mutually be slided between lever 72.Tapping cone 73 is removably mounted at 71 bottom of tapping ontology, can as needed more
Change the tapping cone 73 of different size.The bottom of drive rod 72 and atrium 711 are corresponding square structure, so that drive rod
Only transmitting torque prevents between drive rod 72 and tapping ontology 71 without the power of transmitting axial direction between 72 and tapping ontology 71
It relatively rotates.
But observe existing tooth machining unit discovery for a long time by applicant：When withdrawing, add to guarantee that screw tap does not destroy
The good hole shape of work or screw thread, screw tap must have certain amount of floating (or scope of activities), and amount of floating limits screw tap and boring
Precision when hole or tapping feed.
Utility model content
The utility model aim is to provide a kind of attachment device have preferable tapping precision.
The utility model aim, which also resides in, provides a kind of tooth machining unit, has preferable tapping precision.
The utility model aim, which also resides in, provides a kind of multi-shaft device, has preferable tapping precision.
In order to achieve the above-mentioned advantages, a kind of tooth machining unit, including driving device and attachment device, the driving device is for driving the company
The shaft of connection device rotates, which includes the connecting cylinder for connecting screw tap, which is characterized in that the attachment device is also wrapped
Include the first elastic portion, the second elastic portion；Shaft ring is equipped in the middle part of the shaft；The connecting cylinder is extended with backwards to screw tap and turns round for transmitting
The transfer tube of square has gap between the transfer tube and the shaft；First elastic portion is located at the transmission end surfaces and the shaft
Between ring, second elastic portion is for keeping the shaft ring, the transfer tube to contact with first elastic portion.
As a further improvement, there is rigid auxiliary section, the rigidity between the transmission end surfaces and the shaft ring
Auxiliary section is connected and fixed with the transfer tube or the shaft ring, and first elastic portion is for keeping the rigidity auxiliary section and the transmission
There is gap between pipe or the shaft ring.
As a further improvement, the rigid auxiliary section is cyclic structure, which is set in described first
Outside elastic portion, which is used to for first elastic portion provide support when first elastic portion is pressurized, make this first
Elastic portion squeezes the shaft.
As a further improvement, have between the connecting cylinder and the transfer tube and accommodate pipe, the receiving pipe is close should
The end of transfer tube has the first support portion, and the shaft is extended with connecting rod towards connecting cylinder, and the end of the connecting rod is fixed
There is the second support portion, second elastic portion is located between first support portion and second support portion.
As a further improvement, the receiving pipe is tube-shaped structure, and second support portion is circular plate knot
Structure has third elastic portion between second support portion and the receiving pipe.
As a further improvement, first elastic portion and/or the third elastic portion are cyclic structure.
As a further improvement, first elastic portion and/or the third elastic portion are O-ring, the third bullet
Property portion is the compressed spring being set in outside the connecting rod.
As a further improvement, second support portion or the receiving pipe are offered for keeping the third elasticity
The limiting slot of portion position.
In the present invention, it is provided with the first elastic portion in transmission end surfaces and shaft interannular, is passed when screw tap drilling
Defeated pipe and shaft ring squeeze the first elastic portion, and the opposite scope of activities of transfer tube and shaft ring is smaller, and in the withdrawing stage,
Ensure that tapping has a preferable precision the scope of activities of feed stage screw tap is smaller, and in withdrawing stage silk
The larger screw tap of the scope of activities of cone can be according to machined hole shape or screw thread automatic adjusting position.
Detailed description of the invention
Fig. 1 show the structural schematic diagram of the tapping bar of existing tooth machining unit.
Fig. 2 show the structural schematic diagram of the attachment device of the utility model first embodiment.
Fig. 3 show the explosive view of the attachment device of Fig. 2.
Fig. 4 show the cutting structure chart of the attachment device of Fig. 2.
Fig. 5 show the partial enlarged view at the A of Fig. 4.
Fig. 6 show the cutting structure chart of the attachment device of the utility model second embodiment.
Fig. 7 show the explosive view of the attachment device of Fig. 6.
Fig. 8 show the cutting structure chart of the attachment device of the utility model 3rd embodiment.
Fig. 9 show the cutting structure chart of the attachment device of Fig. 8.
Figure 10 show the explosive view of the attachment device of Fig. 8.
Figure 11 show the partial enlarged view at the B of Fig. 9.
Specific embodiment
Further to illustrate that the utility model is the technical means and efficacy reaching predetermined purpose of utility model and being taken,
Below in conjunction with attached drawing and preferred embodiment, to according to the utility model proposes specific embodiment, structure, feature and its effect,
Detailed description is as follows.
Please refer to FIGS.2-5, the attachment device of the utility model first embodiment, including shaft 1, for connecting shaft 1
With the connecting cylinder 2 of screw tap 9, the first elastic portion 3, the second elastic portion 4, rigid auxiliary section 5.
Shaft 1 includes sequentially connected power input lever 101, shaft ring 11, the power output rod 102 for being used for transmission torque
With connecting rod 12；Power input lever 101 is used to connect the output shaft of driving device, transmits power；The radial dimension of shaft ring 11
Greater than the radial dimension of power output rod 102, the shaft shoulder of evagination is formed；Power output rod 102 is inserted into connecting cylinder 2, with connecting cylinder 2
Cooperation, which can be realized, passes to connecting cylinder 2 for the torque of shaft 1, and cross section is hexagon, is also possible to oval, rectangular etc.
Other are not the circular shapes for being suitable for transmitting torque, and key connection can also be used between power output rod 102 and connecting cylinder 2
Mode transmit torque.
Connecting cylinder 2 includes sequentially connected transfer tube 21, accommodates pipe 22, screw tap connecting cylinder 20；Transfer tube 21 offer with
The power output rod 102 corresponding through-hole has radial clearance J1, makes shaft 1 between power output rod 102 and transfer tube 21
Slidably with respect to connecting cylinder 2, and shaft 1 can have radial deflection or buffering with respect to connecting cylinder 2, conducive to screw tap 9 when tapping starts
Find the centre of location accurately；Receiving pipe 22 is tube-shaped structure, has the first support portion 221 close to the end of transfer tube 21, shaft 1
Connecting rod 12 passes through transfer tube 21 and protrudes into receiving pipe 22, and the end of connecting rod 12 has been removably secured the second support portion 13, can
The second support portion 13 to be fixed on to the end of connecting rod 12 by bolt；Second elastic portion 4 is located at the first support portion 221 and
Between two support portions 13, the second elastic portion 4 is compressed spring；Between second support portion 13 and the inner wall for accommodating pipe 22
Equipped with third elastic portion 6, third elastic portion 6 is O-ring, can prevent opposite 1 amplitude of fluctuation of shaft in high-speed rotation of connecting cylinder 2
It spends greatly, is unfavorable for screw tap 9 and finds the centre of location accurately when tapping starts, influence tapping precision；In order to be carried out to third elastic portion 6
Positioning, the limiting slot for being used to support third elastic portion 6 is equipped in the outside of the second support portion 13, and limiting slot can also be provided with appearance
It receives on the inner wall of pipe 22.
First elastic portion 3 is located between 21 end face of transfer tube and shaft ring 11, and the first elastic portion 3 can be O-ring, can also
To be spring；Second elastic portion 4 is for keeping shaft ring 11, transfer tube 21 to contact respectively with the first elastic portion 3；Rigid auxiliary section
5 are set in outside the first elastic portion 3, and rigid auxiliary section 5 is used to provide support when the first elastic portion 3 is pressurized for the first elastic portion 3,
So that the first elastic portion 3 is squeezed shaft 1, and make to form rigid contact between 21 end face of transfer tube and shaft ring 11, it is ensured that in tapping
Axial float will not occur for screw tap 9 when in the process, cause the adverse effect of sleave；In non-tapping, the rigidity auxiliary section 5 and should
There is axial gap J2 between transfer tube 21 or the shaft ring 11；Rigid auxiliary section 5 can be independent the component of cyclic structure,
Can also be fixed on shaft ring 11 be perhaps fixed on transfer tube 21 can also with shaft ring 11 or the one of transfer tube 21 at
Type.
Screw tap connecting cylinder 20 is used for detachably connected screw tap 9, including ontology 29, press sleeve 23, sphere 24, elastic element
25.It is equipped with the first jack 20A for accommodating 9 shank top end part of screw tap in ontology 29, is additionally provided with and the first jack 20A in connecting cylinder 2
The second jack 20B, the first taper hole 20C for being arranged concentrically and successively abutting；The larger longitudinal end of first taper hole 20C and second is inserted
Hole 20B is adjacent；Press sleeve 23 can be slidably inserted into first taper hole 20C, and the side wall circumferential surface of press sleeve 23 is equipped with multiple first side openings
231, sphere 24 is installed in the first side opening 231, and the diameter of the outer common tangent circle formed by multiple spheres 24 is greater than the first cone
For hole 20C smaller radial to the diameter at end, the second jack 20B is interior to be equipped with the elastic element 25 for supporting 23 top of press sleeve, 24 quilt of sphere
The hole wall of first taper hole 20C squeezes clamping 9 shank of screw tap, and when pushing press sleeve 23, press sleeve 23 overcomes the first elasticity member
The pressure of part 25 makes the release of sphere 24 to 9 shank chucking power of screw tap to the larger longitudinal end of the first taper hole 20C is mobile.Ontology 29 exists
The corresponding position first taper hole 20C offers steel ball putting hole 201, and plug 202 is fixed in steel ball putting hole.
The ontology 29 and receiving pipe 22 of the present embodiment plug tap connecting cylinder 20 are connected through a screw thread fixation, accommodate pipe 22 and pass
Defeated pipe 21 is integrally formed.In other embodiments accommodate pipe 22, transfer tube 21, screw tap connecting cylinder 20 ontology 29 can integrally at
Type.
First elastic portion 3 and/or third elastic portion 6 are cyclic structure.First elastic portion 3 and/or third elastic portion 6 are O
Type circle, third elastic portion 6 are the compressed spring being set in outside connecting rod 12.
In the attachment device of the present embodiment, tooth machining unit and multi-shaft device, it is arranged between 21 end face of transfer tube and shaft ring 11
First elastic portion 3, when screw tap 9 is crept into, transfer tube 21 and shaft ring 11 squeeze first elastic portion 3, transfer tube 21 and shaft ring
11 opposite scope of activities is smaller, and in the withdrawing stage, the opposite scope of activities of transfer tube 21 and shaft ring 11 is smaller.
When specific screw tap drilling, rigid auxiliary section and the contact of shaft ring, while rigid auxiliary section constrains the first elasticity
The deformation direction in portion increases by the first elastic portion by the pressure to shaft, eliminates axial direction and swing between transfer tube and shaft
Amount of floating, while reducing radial amount of floating.
There is gap J1, between specific power output rod 102 and transfer tube 21 when withdrawing between transfer tube 21 and shaft 1
With gap J1, gap J1 allows to have radial amount of floating between transfer tube 21 and shaft 1, i.e. permission transfer tube 21 is in shaft 1
Diametric displacement.Gap J1 also allows transfer tube 21 and shaft 1 has the amount of floating swung, i.e. permission 1 axis of shaft
The variable quantity of angle between 21 axis of transfer tube.First elastic portion 3 and the cooperation of the second elastic portion 4 make between transfer tube 21 and shaft 1
With axial amount of floating, i.e. displacement of the permission transfer tube 21 in 1 axis direction of shaft.
In the smaller preferable precision that has for ensuring that drilling or tapping of the scope of activities of feed stage screw tap 9, and
The larger screw tap 9 of the scope of activities of withdrawing stage screw tap 9 can be according to machined hole shape or screw thread automatic adjusting position.
Refer to Fig. 6-Fig. 7, the attachment device of the utility model second embodiment, the company of the present embodiment and first embodiment
The difference of connection device is：
Rigid auxiliary section 5 is connected and fixed with shaft ring 11 in the present embodiment；First elastic portion 3 and third elastic portion 6, which have, encloses
The multiple elastic strip compositions of axis around the shaft.In other embodiments, rigid auxiliary section 5 can be by multiple around the rigid of shaft axis
Property item composition.
Refer to Fig. 8-Figure 11, the attachment device of the utility model 3rd embodiment, the present embodiment and first embodiment
The difference of attachment device is：
The screw tap 9 that is fixedly connected of connecting cylinder 2 and ER nut 26 in the present embodiment；Not set rigidity is matched in the present embodiment
Conjunction portion and receiving pipe.First elastic portion 3 is compressed spring.
Shaft ring 11 offers multiple through-holes around shaft axis, and screw rod 111, screw rod 111 and biography are accommodated in through-hole
Defeated pipe 21 is connected and fixed, and the second elastic portion 4 is the compressed spring being set in outside screw rod 111, and the second elastic portion 4 is located at screw rod 111
Head and shaft ring 11 between.It should be noted that having between screw rod 111 and through-hole to obtain the amount of floating of enough swings
There is gap.
Attachment device in the present embodiment, including shaft, the connecting cylinder for connecting the shaft and screw tap, the attachment device is also
Including the first elastic portion, the second elastic portion；Shaft ring is equipped in the middle part of the shaft；The connecting cylinder is extended with backwards to screw tap for transmitting
The transfer tube of torque slidably cooperates between the transfer tube and the shaft；First elastic portion is located at the transmission end surfaces and should
Between shaft ring, second elastic portion is for keeping the shaft ring, the transfer tube to contact respectively with first elastic portion, the shaft
Ring offers multiple through-holes around shaft axis, accommodates in the through-hole and is connected and fixed screw rod with transfer tube, second elasticity
Portion is the compressed spring between the head and shaft ring of screw rod.
When the present embodiment plug tap is crept into, shaft ring and transfer tube squeeze the first elastic portion, compressed first elastic portion
It levels off to rigidity, eliminates the amount of floating of the swing between transfer tube and shaft.
The utility model also provides a kind of tooth machining unit, including driving device and attachment device, and the driving device is for driving
The shaft of the attachment device rotates, which further includes the connecting cylinder for connecting screw tap, which further includes the
One elastic portion, the second elastic portion；Shaft ring is equipped in the middle part of the shaft；The connecting cylinder is extended with backwards to screw tap for transmitting torque
Transfer tube has gap between the transfer tube and the shaft；First elastic portion be located at the transmission end surfaces and the shaft ring it
Between, second elastic portion is for keeping the shaft ring, the transfer tube to contact with first elastic portion.
The utility model also provides a kind of multi-shaft device, including more attachment devices, main shaft, transmission gear, the main shaft
For driving the transmission gear to drive the shaft rotation of attachment device, which further includes the connection for connecting screw tap
Cylinder, which further includes the first elastic portion, the second elastic portion；Shaft ring is equipped in the middle part of the shaft；The connecting cylinder is backwards to silk
Cone is extended with the transfer tube for transmitting torque, has gap between the transfer tube and the shaft；First elastic portion is located at should
It transmits between end surfaces and the shaft ring, second elastic portion is for keeping the shaft ring, the transfer tube and first elastic portion
Contact.
The utility model also provides a kind of tooth machining unit, including driving device and attachment device, and the driving device is for driving
The shaft of the attachment device rotates, which further includes the connecting cylinder for connecting the shaft and screw tap, the attachment device
It further include the first elastic portion, the second elastic portion；Shaft ring is equipped in the middle part of the shaft；The connecting cylinder is extended with backwards to screw tap for passing
The transfer tube of torque delivery slidably cooperates between the transfer tube and the shaft；First elastic portion be located at the transmission end surfaces and
Between the shaft ring, second elastic portion is for keeping the shaft ring, the transfer tube to contact respectively with first elastic portion, this turn
Collar offers multiple through-holes around shaft axis, accommodates in the through-hole and is connected and fixed screw rod with transfer tube, second bullet
Property portion be compressed spring between the head and shaft ring of screw rod.
The utility model also provides a kind of multi-shaft device, including more attachment devices, main shaft, transmission gear, the main shaft
For driving the transmission gear to drive the shaft rotation of attachment device, which further includes for connecting the shaft and screw tap
Connecting cylinder, which further includes the first elastic portion, the second elastic portion；Shaft ring is equipped in the middle part of the shaft；The connecting cylinder
It is extended with the transfer tube for transmitting torque backwards to screw tap, is slidably cooperated between the transfer tube and the shaft；First elasticity
Portion is located between the transmission end surfaces and the shaft ring, second elastic portion for keep the shaft ring, the transfer tube respectively with
First elastic portion contact, which offers multiple through-holes around shaft axis, accommodates in the through-hole and transfer tube
It is connected and fixed screw rod, which is the compressed spring between the head and shaft ring of screw rod.
More than, it is only the preferred embodiment of the utility model, limit in any form not is made to the utility model
System, although the utility model has been disclosed with preferred embodiment as above, is not intended to limit the utility model, any to be familiar with sheet
Technical professional is not departing within the scope of technical solutions of the utility model, when the technology contents work using the disclosure above
A little change or it is modified to the equivalent embodiment of equivalent variations out, but all without departing from the content of the technical scheme of the utility model, according to
According to the technical essence of the utility model any simple modification, equivalent variations and modification to the above embodiments, still fall within
In the range of technical solutions of the utility model.
Claims (10)
1. a kind of tooth machining unit, including driving device and attachment device, the driving device is for driving the shaft of the attachment device to revolve
Turn, which includes the connecting cylinder for connecting screw tap, which is characterized in that the attachment device further include the first elastic portion,
Second elastic portion；Shaft ring is equipped in the middle part of the shaft；The connecting cylinder is extended with the transfer tube for transmitting torque backwards to screw tap, should
There is gap between transfer tube and the shaft；First elastic portion is located between the transmission end surfaces and the shaft ring, this second
Elastic portion is for keeping the shaft ring, the transfer tube to contact with first elastic portion.
2. tooth machining unit as described in claim 1, it is characterised in that：Have between the transmission end surfaces and the shaft ring rigid
Property auxiliary section, in non-tapping, between the rigidity auxiliary section and the transfer tube or the shaft ring have axial gap.
3. tooth machining unit as claimed in claim 2, it is characterised in that：The rigidity auxiliary section is to be set in first elastic portion
Outer cyclic structure squeezes first elastic portion for providing support when first elastic portion is pressurized for first elastic portion
Press the shaft.
4. tooth machining unit as claimed in claim 2, it is characterised in that：It is described rigidity auxiliary section and the transfer tube or with described turn
Collar is fixedly connected.
5. tooth machining unit as described in claim 1, it is characterised in that：The connecting cylinder includes the receiving connecting with the transfer tube
Pipe, the receiving pipe have the first support portion close to the end of the transfer tube, and the shaft is extended with connecting rod towards connecting cylinder, should
The end of connecting rod is equipped with the second support portion, and second elastic portion is located between first support portion and second support portion.
6. tooth machining unit as claimed in claim 5, it is characterised in that：It is set between second support portion and the receiving inside pipe wall
There is third elastic portion.
7. tooth machining unit as claimed in claim 6, it is characterised in that：It is equipped on the outside of second support portion and is used to support described the
The limiting slot of three elastic portions.
8. tooth machining unit as claimed in claim 6, it is characterised in that：First elastic portion and/or the third elastic portion are
Cyclic structure.
9. tooth machining unit as claimed in claim 6, it is characterised in that：First elastic portion and/or the third elastic portion are O
Type circle.
10. tooth machining unit as claimed in any one of claims 1-9 wherein, it is characterised in that：Second elastic portion is compression bullet
Spring.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721795740 | 2017-12-20 | ||
| CN2017217957404 | 2017-12-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208162791U true CN208162791U (en) | 2018-11-30 |
Family
ID=64374544
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820331595.2U Expired - Fee Related CN208162791U (en) | 2017-12-20 | 2018-03-12 | Tooth machining unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208162791U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112916967A (en) * | 2021-03-03 | 2021-06-08 | 铣立(上海)切削技术有限公司 | Variable-pitch quick-changing tool holder type thread milling cutter |
-
2018
- 2018-03-12 CN CN201820331595.2U patent/CN208162791U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112916967A (en) * | 2021-03-03 | 2021-06-08 | 铣立(上海)切削技术有限公司 | Variable-pitch quick-changing tool holder type thread milling cutter |
| CN112916967B (en) * | 2021-03-03 | 2022-05-27 | 铣立(上海)切削技术有限公司 | Variable-pitch quick-changing tool holder type thread milling cutter |
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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: 20181130 Termination date: 20210312 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |