CN202622442U - Friction type reversible tapping device - Google Patents
Friction type reversible tapping device Download PDFInfo
- Publication number
- CN202622442U CN202622442U CN 201220248319 CN201220248319U CN202622442U CN 202622442 U CN202622442 U CN 202622442U CN 201220248319 CN201220248319 CN 201220248319 CN 201220248319 U CN201220248319 U CN 201220248319U CN 202622442 U CN202622442 U CN 202622442U
- Authority
- CN
- China
- Prior art keywords
- friction
- reverse
- gear
- type
- main shaft
- 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
Links
Abstract
The utility model discloses a friction type reversible tapping device. The friction type reversible tapping device comprises a taper shank, a machine housing, a spindle and a planetary gear transmission mechanism, wherein the planetary gear transmission mechanism comprises an inner gear, a solar wheel and a planetary wheel; the inner gear is fixedly connected with the taper shank; the solar wheel is arranged on the outer side of the spindle in a sleeving manner; the planetary wheel is mounted between the inner gear and the solar wheel and engaged with the inner gear and the solar wheel; the spindle can slide in the radial direction; a friction plate is fixedly mounted on the upper side of the solar wheel; a friction wheel is fixedly mounted on the outer side of the spindle; an upper conical surface and a lower conical surface are arranged on the outer side of the friction wheel; the inner gear and the friction plate are respectively provided with conical surfaces capable of being fitted to the upper conical surface and the lower conical surface of the friction wheel; and a compression spring is mounted between the friction wheel and the friction plate. The friction type reversible tapping device is convenient to mount and flexible to reverse, has no reversing impact, is high in processing precision and use efficiency, has an overload protection function, and can be widely applied to industrial inner thread processing.
Description
Technical field
The utility model belongs to the machining equipment technical field, is specifically related to a kind of reasonable in designly, and machining accuracy is high, and friction-type easy and simple to handle can reverse chasing bar.
Background technology
The tapping mode of prior art mainly comprises manual tapping and drilling machine tapping.Manual tapping is big because of labour intensity, and the lower and low precision of efficient does not adopt in commercial production basically; The drilling machine tapping need be installed the reversed chasing bar that can realize forward and backward control on drill press spindle; With satisfy tapping and move back the silk needs, in the prior art, through pinion unit turning to of thread tapper main shaft controlled usually; But because of adopting gear or pin key etc. to be connected firmly between transmission device and main shaft; Reversing impact is bigger, operating difficulties, and machining accuracy is lower; And produce very easily in the use that screw tap fractures or the phenomenon of tipping; Industrialization degree is not high, therefore, develop a kind ofly do not have reversing impact, use flexibly, working stability, machining accuracy is high, service efficiency is high and reversed chasing bar with overload protection function is desirability.
The utility model content
The purpose of the utility model is to provide no reversing impact, uses flexibly, working stability, machining accuracy is high, service efficiency is high and have the reversed chasing bar of overload protection function.
The purpose of the utility model is to realize like this; This friction-type can reverse chasing bar and comprise taper shank, casing, main shaft and planetary gear mechanism, and planetary gear mechanism comprises internal gear, sun gear and planetary gear, and internal gear is fixedly connected with taper shank; Sun gear is sleeved on the main shaft outside; Planetary gear is installed between internal gear and sun gear and is meshing with each other, and main shaft can radially slide, and the sun gear upside is installed with a frictional disk; The main shaft outside is installed with friction pulley; The friction pulley outside has taper seat and following taper seat, internal gear and frictional disk have respectively can with the last taper seat of friction pulley and the taper seat of following taper seat applying, the compression spring is installed between friction pulley and the frictional disk.
The utility model is easy for installation, and switching-over is flexible, no reversing impact, and machining accuracy is high, and service efficiency is high, has overload protection function, can be widely used in the industrialization internal thread machining.
Description of drawings
Accompanying drawing is the utility model overall structure sketch map;
Among the figure; The 1-taper shank, the 2-case lid, 3-has the needle bearing of retainer, 4-single-row radial ball bearing, 5-bearing cap, 6-flower shape sunk screw, 7-hex nut; The 8-orientation lever, the 9-housing, the 10-friction pulley, the 11-friction plate, 12-fluting awl end dog screw, the 13-frictional disk, 14-compresses spring; 15-gear backing plate, 16-gear shaft, 17-plain washer, 18-hex nut, 19-main shaft, 20-internal gear; 21-friction pulley lining, 22-hexagon flange bolt, 23-steady pin, 24-pad, 25-sun gear, 26-planetary gear; 27-is single-row to have the retainer needle bearing, the 28-thrust ball bearing, and the 29-lining, 30-is single-row to have retainer needle bearing, 31-hex nut, 32-slotted countersunk flat head screw.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is further described, but never in any form the utility model is limited,, all belong to the protection domain of the utility model based on any conversion or the replacement that the utility model training centre is done.
Shown in accompanying drawing; The utility model comprises taper shank 1, casing, main shaft 19 and planetary gear mechanism, and planetary gear mechanism comprises internal gear 20, sun gear 25 and planetary gear 26, and internal gear 20 is fixedly connected with taper shank 1; Sun gear 25 is sleeved on main shaft 19 outsides; Planetary gear 26 is installed in internal gear 20 and 25 of sun gears and is meshing with each other, and main shaft 19 can radially slide, and sun gear 25 upsides are installed with a frictional disk 13; Main shaft 19 outsides are installed with friction pulley 10; Friction pulley 10 outsides have taper seat and following taper seat, internal gear 20 and frictional disk 13 have respectively can with the last taper seat of friction pulley 10 and the taper seat of following taper seat applying, be equipped with between friction pulley 10 and the frictional disk 13 and compress spring 14.
On the outside taper seat of said friction pulley 10 friction plate 11 is installed, friction plate 11 is bonding with friction pulley 10, increases frictional resistance.
Said friction pulley 10 inboards are installed with friction pulley lining 21, and downside is installed with pad 24, is used to protect friction pulley.
19 on said taper shank 1 and main shaft are equipped with the needle bearing 3 of retainer, are used for support, firm thread tapper main shaft 19; Single-row radial ball bearing 4 is installed between taper shank 1 and casing, is used for firm taper shank 1, prevent that taper shank 1 from beating excessive.
Said main shaft 19 hypomeres and casing coupling part are equipped with the single-row retainer needle bearing 30 that has, and be excessive to prevent main shaft 19 axial runouts, can make main shaft 19 axial smooth rotations.
Said sun gear 25 outsides and casing connecting portion are equipped with the single-row retainer needle bearing 27 that has, and beat excessively to prevent sun gear 25, make sun wheel shaft to smooth rotation; Sun gear 25 downsides and casing connecting portion are equipped with thrust ball bearing 28, to overcome sun gear 25 radial loads.
Between said thrust ball bearing 28 outsides and casing lining 29 is installed, with the protection housing, the control wearing and tearing.
The downside of said sun gear 25 outsides, planetary gear 26 is equipped with gear backing plate 15, weares and teares with pinion cavity.
Said casing is divided into cabinet cover 2 and housing 9 two parts, and cabinet cover 2 is connected with bolted with 9 of housings.
Be installed with orientation lever 8 on the said casing, to prevent the whole rotation of thread tapper.
The utility model operation principle and the course of work:
When the operator starts upright drill, 1 rotation of upright drill main shaft interlock thread tapper taper shank, taper shank 1 drives internal gear 20 rotations simultaneously, and internal gear 20 drives planetary gear 26, and planetary gear 26 drives sun gear 25, and sun gear 25 drives frictional disk 13 rotations.This moment, friction pulley 10 produced friction with internal gear 20 inwalls under the effect of compression spring 14, and interlock main shaft 19 is just changeing.When the operator pressed down machine tool chief axis, thread tapper main shaft 19 drive screw taps are just changeing shot the workpiece to be machined thread Pilot hole, when attacking the screw thread requirement degree of depth; The last machine tool chief axis of carrying of operator, main shaft drives thread tapper taper shank 1, and taper shank drives internal gear 20; Internal gear 20 drives case lid 2, housing 9, sun gear 25, planetary gear 26 and frictional disk 13 and carries on the whole; This moment, friction plate 11 separated with internal gear 20 inwalls, and main shaft 19 is not receiving axial force, and main shaft 19 stops operating.On each part interlock frictional disk 13, mention certain position, frictional disk 13 inwalls are connected with friction plate 11 frictions, and friction plate drives main shaft 19 counter-rotatings, and main shaft 19 drives the screw tap counter-rotating and withdraws from processed screwed hole, accomplishes the time processing process.Friction plate 11 and internal gear 20 inwalls are that friction is connected, and really up to the mark or attack when the thread Pilot hole root produces greatly resistance like the workpiece material, rubbing surface can skid automatically, can not produce that screw tap fractures or the phenomenon of tipping.
The characteristics of the utility model:
The utility model adopts friction-disc to be in transmission connection, and breaks through conventional connected mode, and is rational in infrastructure, easy for installation, use flexibly, and no reversing impact, machining accuracy is high, and service efficiency is high, has overload protection function.
Claims (10)
1. a friction-type can reverse chasing bar; Comprise taper shank (1), casing, main shaft (19) and planetary gear mechanism; Planetary gear mechanism comprises internal gear (20), sun gear (25) and planetary gear (26); Internal gear (20) is fixedly connected with taper shank (1), and sun gear (25) is sleeved on main shaft (19) outside, and planetary gear (26) is installed between internal gear (20) and sun gear (25) and is meshing with each other; Main shaft (19) can radially slide; It is characterized in that: sun gear (25) upside is installed with a frictional disk (13), and main shaft (19) outside is installed with friction pulley (10), and friction pulley (10) outside has taper seat and following taper seat; Internal gear (20) and frictional disk (13) have respectively can and the last taper seat of friction pulley (10) and the following taper seat taper seat of fitting, be equipped with between friction pulley (10) and the frictional disk (13) and compress spring (14).
2. friction-type as claimed in claim 1 can reverse chasing bar, it is characterized in that: friction plate (11) is installed on the outside taper seat of said friction pulley (10).
3. according to claim 1 or claim 2 friction-type can reverse chasing bar, and it is characterized in that: said friction pulley (10) inboard is installed with friction pulley lining (21), and friction pulley (10) downside is installed with pad (24).
4. according to claim 1 or claim 2 friction-type can reverse chasing bar, it is characterized in that: the needle bearing (3) of retainer is installed between said taper shank (1) and main shaft (19), single-row radial ball bearing (4) is installed between taper shank (1) and casing.
5. according to claim 1 or claim 2 friction-type can reverse chasing bar, and it is characterized in that: said main shaft (19) hypomere and casing coupling part are equipped with the single-row retainer needle bearing (30) that has.
6. according to claim 1 or claim 2 friction-type can reverse chasing bar; It is characterized in that: said sun gear (25) outside is equipped with the single-row retainer needle bearing (27) that has with the casing connecting portion, and sun gear (25) downside and casing connecting portion are equipped with thrust ball bearing (28).
7. friction-type as claimed in claim 6 can reverse chasing bar, it is characterized in that: between said thrust ball bearing (28) outside and casing lining (29) is installed.
8. according to claim 1 or claim 2 friction-type can reverse chasing bar, it is characterized in that: the downside of said sun gear (25) outside, planetary gear (26) is equipped with gear backing plate (15).
9. according to claim 1 or claim 2 friction-type can reverse chasing bar, and it is characterized in that: said casing is divided into cabinet cover (2) and housing (9) two parts, is connected with bolted between cabinet cover (2) and housing (9).
10. according to claim 1 or claim 2 friction-type can reverse chasing bar, it is characterized in that: be installed with orientation lever (8) on the said casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220248319 CN202622442U (en) | 2012-05-30 | 2012-05-30 | Friction type reversible tapping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220248319 CN202622442U (en) | 2012-05-30 | 2012-05-30 | Friction type reversible tapping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202622442U true CN202622442U (en) | 2012-12-26 |
Family
ID=47375685
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220248319 Expired - Fee Related CN202622442U (en) | 2012-05-30 | 2012-05-30 | Friction type reversible tapping device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202622442U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105299172A (en) * | 2015-11-30 | 2016-02-03 | 苏州听毅华自动化设备有限公司 | Automatic reversing mechanism for plug tapping machine |
| CN111992822A (en) * | 2020-08-11 | 2020-11-27 | 石嘴山市锦绣前程工贸有限公司 | Horizontal tapping equipment for internal thread |
-
2012
- 2012-05-30 CN CN 201220248319 patent/CN202622442U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105299172A (en) * | 2015-11-30 | 2016-02-03 | 苏州听毅华自动化设备有限公司 | Automatic reversing mechanism for plug tapping machine |
| CN111992822A (en) * | 2020-08-11 | 2020-11-27 | 石嘴山市锦绣前程工贸有限公司 | Horizontal tapping equipment for internal thread |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102653015A (en) | Planetary milling cutter | |
| CN202622442U (en) | Friction type reversible tapping device | |
| CN201376102Y (en) | Worm wheel and worm drive four-jaw self-centering chuck | |
| CN202578574U (en) | Hydraulic ferrule clamping chuck of raise boring machine | |
| CN102844160A (en) | A machining assembly with the transmission adjustable into different positions | |
| CN203292631U (en) | Tapping power head of servo motor | |
| CN210334498U (en) | Drilling device for spindle part of numerical control machine tool | |
| CN201735914U (en) | Tapping fixture for drilling machine | |
| CN201848608U (en) | Stripping tool capable of carrying out radial and axial cutting to aluminum alloy plastic-lined composite pipe | |
| US2137940A (en) | Chain drill | |
| CN201137670Y (en) | Outer gyration rock drill gearing device | |
| CN203409296U (en) | Multi-shaft drilling rig | |
| CN203292921U (en) | Clutch type disk tooth walking device for machine tool | |
| CN201659315U (en) | Back spotfacer device of bolt hole counter bore | |
| CN201776532U (en) | Thread processing device for overweight or large-sized workpiece | |
| CN201950458U (en) | Simple aluminium alloy drilling and milling machine | |
| CN203526655U (en) | Internal keyway milling head device | |
| CN203330793U (en) | Side hole machining device | |
| CN103286393B (en) | Servomotor tapper unit | |
| CN203292507U (en) | High-speed and large-resistance gear main shaft assembly of numerical control drilling and milling machine | |
| CN201768973U (en) | Threading and tapping integrated machine | |
| CN201950504U (en) | Knife quick-changing device for heavy roll lathe | |
| CN204221486U (en) | The flexible tooth attacking device of reversible | |
| CN214815008U (en) | Semi-automatic hydraulic small-diameter pipeline tapping machine | |
| CN204234919U (en) | A kind of Novel turning screw thread anticollision mechanism |
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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121226 Termination date: 20210530 |