CN106077844A - Threaded hole machine - Google Patents
Threaded hole machine Download PDFInfo
- Publication number
- CN106077844A CN106077844A CN201610482670.0A CN201610482670A CN106077844A CN 106077844 A CN106077844 A CN 106077844A CN 201610482670 A CN201610482670 A CN 201610482670A CN 106077844 A CN106077844 A CN 106077844A
- Authority
- CN
- China
- Prior art keywords
- contact
- tapping
- tap
- motor
- threaded hole
- 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.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23G—THREAD CUTTING; WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTION THEREWITH
- B23G1/00—Thread cutting; Automatic machines specially designed therefor
- B23G1/16—Thread cutting; Automatic machines specially designed therefor in holes of workpieces by taps
- B23G1/18—Machines with one working spindle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23G—THREAD CUTTING; WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTION THEREWITH
- B23G1/00—Thread cutting; Automatic machines specially designed therefor
- B23G1/44—Equipment or accessories specially designed for machines or devices for thread cutting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23G—THREAD CUTTING; WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTION THEREWITH
- B23G11/00—Feeding or discharging mechanisms combined with, or arranged in, or specially adapted for use in connection with, thread-cutting machines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
- B23Q5/02—Driving main working members
- B23Q5/04—Driving main working members rotary shafts, e.g. working-spindles
- B23Q5/10—Driving main working members rotary shafts, e.g. working-spindles driven essentially by electrical means
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling And Boring (AREA)
Abstract
A kind of threaded hole machine disclosed by the invention, it is desirable to provide one is easy to control, efficiency is high, working strength is low, moment is stable, the thread tapping instrument that tapping depth is controlled.The present invention includes: is vertically fixed on the screw mandrel of base worktable side and coordinates cantilever axle sleeve on described screw mandrel, vertically connects firmly at the motor drive mechanism of described cantilever axle sleeve and travel control system, wherein, motor is connected as one by the fixing sleeve axle head screw of described motor drive mechanism, it is characterized in that: motor (12) main shaft connects power transmission shaft (26), the bearing (23) that power transmission shaft (26) is coordinated by axle sleeve is connected with mandrel (21), the connected tap holder (3) equipped with thread tap (2) of mandrel (21)；Motor connects auxiliary reclay by the travel switch (13) being arranged on cantilever and main switch (14) circuit, and Electronic control tap holder (3) rotates, semi-automatic tapping.
Description
Technical field
The present invention relates to the tapping tool in a kind of machining.
Background technology
Existing bench tapping machine is commonly used to the tapping of machined part screw thread, and thread tap is arranged on tapping machine and attacks
On silk chuck, the feed motion of Non-follow control screw tap, complete tapping.But Non-follow control is leaned in the feeding of screw tap, owing to moment is unstable
Fixed, it is impossible to accurately to control tapping depth, cause screw tap defective, abrasion or bad, before tapping, if underproof aperture is too
Little, because friction is big, the degree of difficulty of tapping, simultaneously screw tap relatively quick-wearing can be strengthened, on the contrary Kong Tai great, then can attack easily
Going, but the quality of tooth is the most very poor, because the path of tooth can become big, the adhesion of relative screw and nut is not enough, holds easy to slip teeth.Attack
Threaded process often occurring: 1) screw tap fractures；2) tap's teeth collapsing；3) screw tap rapid wear；4) pitch diameter of thread is excessive；5) screw thread
Central diameter is too small；6) thread surface roughness value is excessive.Producing reason is that screw tap fractures that to add man-hour bottom diameter inclined for thread Pilot hole
Little, chip removal is bad causes chip to block；When attacking obstructed screw thread, the degree of depth of boring is inadequate；During tapping, cutting speed is the highest too fast；
The screw tap of tapping is the most coaxial with thread Pilot hole diameter；The selection of screw tap grinding parameter is improper, and work piece hardness is unstable
Fixed；Screw tap uses overlong time, excessive wear.On the other hand, in running into thread Pilot hole, there is residual scrap, thread Pilot hole inclined
When little, easily occurring that screw tap is stuck, the phenomenon that even screw tap fractures, thread tap fractures and can directly result in product rejection.
Processing less than or equal to M1.6 screw thread time especially prominent, when tapping thread part is arranged on fixture, bottom outlet produce beats, use
During tailstock tapping, screw tap centrage is excessive with the deviation of bottom outlet centrage, easily goes out waste product.Workman frequently drags tailstock simultaneously, work
Intensity is the biggest.Owing to manual tapping is inefficient and quality there is also certain problem, it is not suitable for batch production.Manually
Tapping easily makes screw tap and workpiece out of plumb, and scrappage is high, and meeting, product batch is big, and when single-piece screwed hole is various, production efficiency is low
Under；Also resulting in labor strength big, operator's arm is the most tired simultaneously, and tapping torque is unstable, and moment instability is easily made
Become screw tap to fracture, thus also increase screw tap and fracture and cause the risk of product rejection.
Summary of the invention
The weak point that the purpose of the present invention exists for prior art, it is provided that one is easy to control, efficiency is high, working strength
Low, registration, the threaded hole machine that tapping depth is controlled.
For achieving the above object, the present invention provides a kind of threaded hole machine, including: it is vertically fixed on base worktable one
The screw mandrel 20 of side and coordinate the cantilever axle sleeve 17 on described screw mandrel, vertically connect firmly the motor drive mechanism at described cantilever axle sleeve 17
And travel control system, wherein, motor 12 is connected as one with installing rack 9 by described motor drive mechanism, it is characterised in that: electricity
Motivation 12 main shaft connects power transmission shaft 26, and the bearing 23 that power transmission shaft 26 is coordinated by axle sleeve is connected with mandrel 21, and mandrel 21 is connected and fills
There is the tap holder 3 of thread tap 2；Motor 12 is by the travel switch 13 being arranged on cantilever and main switch 14 control circuit
Connecting auxiliary reclay 15, Electronic control tap holder 3 rotates, semi-automatic tapping.
The present invention has the advantages that compared to prior art
Simple in construction, easy to control.The present invention is connected with power transmission shaft 26 by motor 12, and power transmission shaft 26 is connected with mandrel 21, core
Axle 21 is connected with the tap holder 3 equipped with thread tap 2, it is achieved the semi-automatic tapping of Electronic control, simple in construction is easy.Due to screw tap
Vertical with workpiece, control tapping holding capacity equalizes, tapping is steady, cutting speed is fast, noise is low, silk tooth machining accuracy high.Middle
Relay 15 is conventional electrical appliance element, travel switch 13 for conventional electrical appliance element without customization, 24V low-voltage DC motivation 12 is
Conventional electrical appliance element, transformator are conventional electrical appliance and main switch 13 is conventional electrical appliance element, can directly be commercially available, it is not necessary to fixed
System.Contact B31 and contact 7, can be with self design without standard physical..
Efficiency is high, working strength is low.(14 circuit are even by the travel switch 13 being arranged on cantilever and main switch for the present invention
Connecing auxiliary reclay, Electronic control tap holder 3 rotates, semi-automatic tapping, for unlike material workpiece, through hole, blind hole, attack
Silk effect is outstanding, is difficult to rotten tooth, not broken tap.When product batch is big or single-piece screwed hole is various, production efficiency is high；Workman works
Intensity is low.
Registration, tapping depth is controlled.The present invention uses 24V low-voltage DC motivation, by being arranged on cantilever
Travel switch 13 and main switch 14 circuit connect auxiliary reclay, and the travel control system that Electronic control tap holder 3 rotates is real
Existing moment is stable, and tapping depth is controlled.Particular content is: when tapping arrives set depth, contact A7 contacts with contact B31,
The travel switch SQ1 Guan Bi of contact A7 and contact B31 composition, auxiliary reclay 15KA1 coil electricity, normally open contact KA1-1 closes
Close, it is achieved self-locking；By the control of 24V low-voltage DC motivation, force moment protection can be realized.Useless when there is residual in thread Pilot hole
Bits or thread Pilot hole aperture is less than normal causes tap tapping moment to exceed motor maximum moment, motor stall, screw tap is not
Carry out tapping.Operator's screwed hole can be pointed out to there are one of above-mentioned two situations, guide operator that thread Pilot hole is checked,
It is prevented effectively from because screw tap fractures the product rejection caused.On the other hand, can effectively ensure that blind threaded tapping depth, prevent routine
The hole that blind hole tapping causes rethreads and causes scrapping of product.When a large amount of thin-walled cabinets have the blind hole tapping of depth requirements, operation
Easy, registration, tapping the most not fracture of wire.Safe force moment protection ensures that screw tap damage is few；Through hole, bottoming tap do not fracture,
Silk tooth precision is high.
To sum up, these threaded hole facility have: simple in construction, and easy and simple to handle, working strength is low, and resetting is rapid, attacks
Silk precision is high, and production efficiency is high；Realizing the function such as force moment protection and semi-automatic tapping, service life is long.
Accompanying drawing explanation
The present invention is further detailed explanation with detailed description of the invention below in conjunction with the accompanying drawings.
Fig. 1 is the schematic three dimensional views of threaded hole machine of the present invention.
Fig. 2 is the front view of Fig. 1.
Fig. 3 is the A-A sectional view of Fig. 2.
Fig. 4 is the control circuit schematic diagram of the present invention.
In figure: 1 base worktable, 2 thread taps, 3 tap holders, 4 end caps, 5 slotted countersunk flat head screws, 6 locating pieces, 7 touch
Head A, 8 supports, 9 installing racks, 10 soket head cap screws, 11 motor mounts, 12 motor, 13 travel switches, 14 main switchs, in 15
Between relay, 16 regulation handles, 17 cantilever axle sleeves, 18 soket head cap screws, 19 support rings, 20 screw mandrels, 21 mandrels, 22 springs, 23
Bearing, 24 axle sleeves, 25 locking pins, 26 power transmission shafts, 27 connecting rods, 28 hex nuts, 29 protective caps, 30 insulation sleeves, 31 contact B.
Detailed description of the invention
Refering to Fig. 1-3.In embodiment described below, a kind of threaded hole machine, including: it is vertically fixed on base work
The screw mandrel 20 of station 1 side and coordinate the cantilever axle sleeve 17 on described screw mandrel 20, vertically connect firmly at described cantilever axle sleeve 17
Motor drive mechanism and travel control system, wherein, motor 12 is fixed on peace by the motor mount 11 of described motor drive mechanism
Shelving on 9, motor mount 11 is connected as one with installing rack 9 by soket head cap screw 10, and wherein, motor 12 main shaft connects
Power transmission shaft 26, the bearing 23 that power transmission shaft 26 is coordinated by axle sleeve is connected with mandrel 21, by locking between power transmission shaft 26 and mandrel 21
Pin 25 is locked, the connected tap holder 3 equipped with thread tap 2 of mandrel 21；Motor 12 is left by the stroke being arranged on cantilever
Pass 13 and main switch 14 electrically connect auxiliary reclay 15, and Electronic control tap holder 3 rotates, semi-automatic tapping.
Being provided with the contact A7 and contact B31 of parallel electrical machinery main shaft on installing rack 9, contact A7 is arranged on support 8, and leads to
Cross the connecting rod 27 radially connecting firmly on axle sleeve 24 and make vertical movement contact contact B31.Connecting rod 27 connects firmly by hex nut 28
On support 8, protective cap 29 is arranged on the outer end of connecting rod 27.It is with insulation sleeve 30 outside contact B31 and is joined by insulation sleeve 30
Attach together and fit on locating piece 6.
End cap 4 below installing rack 9 is fixed on installing rack 9 by slotted countersunk flat head screw 5.At end cap 4 and axle sleeve 24
Between have spring 22.Below cantilever axle sleeve 17, it is provided with support ring 19 and is locked by soket head cap screw 18.
Select the calibrated bolck of comparable size according to pre-tapped thread depth of threaded hole, the lower section of contact A7 is provided with locating piece 6,
Calibrated bolck is placed on locating piece 6, unclamps the regulation handle 16 being arranged on cantilever axle sleeve 17, adjusts the height of installing rack 9, will
Thread tap 2 and surface of the work contact point are set to thread tap 2 tapping depth zero point；Guan Bi main switch 14, mobile link bar 27,
Making contact A7 contact calibrated bolck, because calibrated bolck height dimension is equal to tapping depth size, then tapping depth sets.
When main switch 14 closes, auxiliary reclay 15 coil KA1 no power, auxiliary reclay 15 normally open contact KA1-1 with
Travel switch 13SQ2 is off, and motor 12 is in rotating forward, moves down connecting rod 27 and drives clamping at tap holder
Thread tap 2 on 3 is toward workpiece thread Pilot hole internal tapping.
When tapping arrives set depth, contact A7 contacts with contact B31, and auxiliary reclay 15 coil KA1 is energized, normally opened
Contact KA1-1 closes, it is achieved self-locking；Normally closed interlock KA1-3, KA1-4 disconnect, and normally open contact KAI-2, KA1-5 close, motor
12 reversions, thread tap 2 exits body, completes first hole tapping.
When thread tap 2 exits body, travel switch 13SQ2 disconnects, and auxiliary reclay 15 coil KA1 power-off is normally closed
Contact KA1-3, KA1-4 close, and normally open contact KAI-2, KA1-5 disconnect, and motor 12 rotates forward, and regulate product next one pre-tapped
Thread Pilot hole, to immediately below thread tap 2, enters second hole tapping.
Refering to Fig. 4.Shown in Fig. 4, control circuit includes: circuit connects the transformator of alternating current power supply, is electrically connected to transformator
Single knife switch SB1 in secondary, is connected in parallel on transformer secondary output input auxiliary reclay KA1 and is connected on described middle relay
The travel switch SQ2 and limit switch SQ1 at device KA1 two ends, and it is connected in parallel on the normally open contact KA1-1 of limit switch SQ1；In parallel
24V low-voltage DC motivation M between described travel switch SQ2 and limit switch SQ1, low-voltage DC motivation M turns to point
Do not controlled by normally open contact KA1-2 and KA1-5, normally closed interlock KA1-3 and KA1-4 of the limit switch SQ1 of two ends parallel connection.When
During main switch SB1 Guan Bi, the normally open contact KA1-1 of auxiliary reclay KA1 and the SQ2 of travel switch 13 is off-state, in
Between relay K A1 coil no power；Motor 12 is in rotating forward, now can body tapping in the past.
When tapping to set depth, the limit switch SQ1 Guan Bi of contact A7 and contact B31 composition, auxiliary reclay
15KA1 coil electricity, normally open contact KA1-1 closes, it is achieved self-locking.Normally closed interlock KA1-3, KA1-4 disconnect, normally open contact KA1-
2, KA1-5 Guan Bi, motor 12 inverts, and thread tap 2 exits body.
When thread tap 2 exits body, and travel switch SQ2 disconnects, auxiliary reclay 15KA1 coil blackout, normally closed interlock
KA1-3, KA1-4 close, and normally open contact KA1-2, KA1-5 disconnect, and motor 12 rotates forward, thread tap 2 tapping next one body
Screw thread.So repeat 2 and 3.
Claims (8)
1. a threaded hole machine, including: it is vertically fixed on the screw mandrel (20) of base worktable side and coordinates described
Cantilever axle sleeve (17) on screw mandrel, vertically connect firmly at the motor drive mechanism of described cantilever axle sleeve (17) and travel control system, wherein,
Motor (12) is connected as one with installing rack (9) by described motor drive mechanism, it is characterised in that: motor (12) main shaft connects
Power transmission shaft (26), the bearing (23) that power transmission shaft (26) is coordinated by axle sleeve is connected with mandrel (21), and mandrel (21) is connected equipped with spiral shell
The tap holder (3) of stricture of vagina screw tap (2)；Motor (12) is controlled by the travel switch (13) being arranged on cantilever and main switch (14)
Circuit processed connects auxiliary reclay (15), and Electronic control tap holder (3) rotates, semi-automatic tapping.
2. threaded hole machine as claimed in claim 1, it is characterised in that: on installing rack (9), it is provided with parallel electrical machinery main shaft
Contact A(7) with contact B(31), contact A(7) be arranged on support (8), by radially connecting firmly the connection on axle sleeve (24)
Vertical movement contact contact B(31 made by bar (27)).
3. threaded hole machine as claimed in claim 2, it is characterised in that: when tapping arrives set depth, contact A(7)
With contact B(31) contact, contact A(7) with contact B(31) form travel switch SQ1 Guan Bi, auxiliary reclay (15) KA1 line
Circle energising, normally open contact KA1-1 closes, it is achieved self-locking.
4. threaded hole machine as claimed in claim 1, it is characterised in that: when main switch (14) closes, auxiliary reclay
(15) coil no power, auxiliary reclay (15) normally open contact is off with travel switch (13), motor (12) place
In rotating forward, move down connecting rod (27) toward workpiece thread Pilot hole internal tapping.
5. threaded hole machine as claimed in claim 1, it is characterised in that: when tapping arrives set depth, contact (7) with
Contact B(31) contact, auxiliary reclay (15) coil electricity, normally open contact closes, it is achieved self-locking；Normally closed interlock disconnects, normally opened
Contact closure, motor (12) inverts, and thread tap (2) exits body, completes first hole tapping.
6. threaded hole machine as claimed in claim 1, it is characterised in that: when thread tap (2) exits body, stroke is opened
Closing (13) to disconnect, auxiliary reclay (15) coil blackout, normally closed interlock closes, and normally open contact disconnects, and motor (12) rotates forward, and adjusts
The next pre-tapped thread Pilot hole of joint, to thread tap (2) underface, enters second hole tapping.
7. threaded hole machine as claimed in claim 1, it is characterised in that: lower section contact A(7) is provided with locating piece (6), fixed
Place calibrated bolck on position block (6), unclamp the regulation handle (16) being arranged on cantilever axle sleeve (17), adjust the height of installing rack (9)
Degree, making screw tap and surface of the work contact point is tap tapping degree of depth zero point.
8. threaded hole machine as claimed in claim 7, it is characterised in that: calibrated bolck height dimension is equal to tapping depth chi
Very little.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610482670.0A CN106077844A (en) | 2016-06-26 | 2016-06-26 | Threaded hole machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610482670.0A CN106077844A (en) | 2016-06-26 | 2016-06-26 | Threaded hole machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106077844A true CN106077844A (en) | 2016-11-09 |
Family
ID=57213671
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610482670.0A Pending CN106077844A (en) | 2016-06-26 | 2016-06-26 | Threaded hole machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106077844A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112518049A (en) * | 2020-12-17 | 2021-03-19 | 陕西宝成航空仪表有限责任公司 | Tapping machine for small thread with screw tap anti-breaking protection function |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201120505Y (en) * | 2007-12-14 | 2008-09-24 | 金德精密配件（苏州）有限公司 | Single-head threading machine |
| CN102632305A (en) * | 2012-04-17 | 2012-08-15 | 青岛沃顿液压设备有限公司 | Head assembly for threading machine |
| CN202715913U (en) * | 2012-07-28 | 2013-02-06 | 陈抱明 | Servo synchronous tapping power head |
| CN203541765U (en) * | 2013-11-04 | 2014-04-16 | 杭州临安钟表有限公司 | Tapping machine |
| CN103737125A (en) * | 2013-12-26 | 2014-04-23 | 宁波市鄞州秀昶机电有限公司 | Numerical control tapping device |
| CN203578949U (en) * | 2013-12-03 | 2014-05-07 | 合肥市奥比特电气有限公司 | Automatic tapping machine |
| CN203843321U (en) * | 2014-05-12 | 2014-09-24 | 鹰潭市东方钟表元件有限公司 | Tapping machine for machining micro elements |
| CN104148750A (en) * | 2014-08-04 | 2014-11-19 | 浙江西菱股份有限公司 | Bench tapping machine |
| CN205816986U (en) * | 2016-06-26 | 2016-12-21 | 成都凯天电子股份有限公司 | Dynamo-electric thread tapping instrument |
-
2016
- 2016-06-26 CN CN201610482670.0A patent/CN106077844A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201120505Y (en) * | 2007-12-14 | 2008-09-24 | 金德精密配件（苏州）有限公司 | Single-head threading machine |
| CN102632305A (en) * | 2012-04-17 | 2012-08-15 | 青岛沃顿液压设备有限公司 | Head assembly for threading machine |
| CN202715913U (en) * | 2012-07-28 | 2013-02-06 | 陈抱明 | Servo synchronous tapping power head |
| CN203541765U (en) * | 2013-11-04 | 2014-04-16 | 杭州临安钟表有限公司 | Tapping machine |
| CN203578949U (en) * | 2013-12-03 | 2014-05-07 | 合肥市奥比特电气有限公司 | Automatic tapping machine |
| CN103737125A (en) * | 2013-12-26 | 2014-04-23 | 宁波市鄞州秀昶机电有限公司 | Numerical control tapping device |
| CN203843321U (en) * | 2014-05-12 | 2014-09-24 | 鹰潭市东方钟表元件有限公司 | Tapping machine for machining micro elements |
| CN104148750A (en) * | 2014-08-04 | 2014-11-19 | 浙江西菱股份有限公司 | Bench tapping machine |
| CN205816986U (en) * | 2016-06-26 | 2016-12-21 | 成都凯天电子股份有限公司 | Dynamo-electric thread tapping instrument |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112518049A (en) * | 2020-12-17 | 2021-03-19 | 陕西宝成航空仪表有限责任公司 | Tapping machine for small thread with screw tap anti-breaking protection function |
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| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161109 |
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| RJ01 | Rejection of invention patent application after publication |