CN1876298A - Bench drill for preventing drill bit break - Google Patents
Bench drill for preventing drill bit break Download PDFInfo
- Publication number
- CN1876298A CN1876298A CN 200610052358 CN200610052358A CN1876298A CN 1876298 A CN1876298 A CN 1876298A CN 200610052358 CN200610052358 CN 200610052358 CN 200610052358 A CN200610052358 A CN 200610052358A CN 1876298 A CN1876298 A CN 1876298A
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- pressure
- drill
- control circuit
- cabinet
- drill bit
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Abstract
The invention relates to a desk type drill machine for preventing drill head wreckage, comprises chassis, supporting post, operating board covered in middle of supporting post, cabinet and generator; cabinet is equipped with tension pulley pressure sensor, belt tension unit and pressure foil gage; tension pulley is compacted on driving belt of drill machine, pressure foil gage is installed on top bar of tension pulley, the pressure foil gage is in electric connection with input end of controlling circuit, output controlling end of controlling circuit is connected to power input end of generator. Drill machine is also equipped with electric magnetic chuck, which includes upper and lower electromagnet, and is located on work bench or chassis. When the load of drill head is increased, the pressure of said foil gage is also increased, then the power is cut off and sends alarm. The electric magnetic chuck can fix irony work piece, and prevents drill heads wreckage.
Description
Technical field
The present invention relates to machining equipment, particularly to the improvement of bench drill.
Background technology
Bench drill is made up of base, pillar, the workbench that is enclosed within the pillar middle part and cabinet and motor, cabinet is located at the top of pillar, comprising main shaft, be enclosed within the drill chuck on the main shaft, and gear, the rocking bar of handling the main shaft lifting, motor is installed on the cabinet, rotates by belt pulley and driving belt drive shaft.Drill jig is driven by main shaft in drill chuck, and under the controlling of lifting operating mechanism downward roof pressure, the workpiece that is placed on workbench or the base is carried out bore operation.
When work, drill bit can fracture owing to reasons such as workpiece shift, chip removal are not smooth, pressure is excessive cause, and workpiece is caused damage.
Summary of the invention
The purpose of this invention is to provide a kind of bench drill that can avoid drill bit to fracture, with the protection workpiece, the convenient use.
The solution of the present invention is: prevent the bench drill that drill bit fractures, comprise base, pillar, be enclosed within workbench and the cabinet and the motor at pillar middle part, cabinet is provided with the regulating wheel pressure sensor, form by belt stretcher and pressure-strain sheet, regulating wheel wherein is pressed on the driving belt of drilling machine, the pressure-strain sheet is located in the push rod of regulating wheel, and the pressure-strain sheet is electrically connected with the input of control circuit, and the output control terminal of control circuit is connected in the power input of motor.
Also be provided with magnechuck on the drilling machine, magnechuck is made up of two groups of electromagnet up and down, is two-sided sucker, puts to be located on workbench or the base.
Control circuit includes amplifying circuit, voltage comparator, output control circuit and alarm, order is electrically connected successively, the input of amplifying circuit is as the input of control circuit, be electrically connected with the pressure-strain sheet, relay contact switch in the control circuit is connected in the electric power loop of motor as the output control terminal of control circuit.
Advantage of the present invention is: owing to be provided with regulating wheel on driving belt, be provided with the pressure-strain sheet in the push rod of regulating wheel, when bit weight increased, it is big that main-shaft torque becomes, and the pulling force of belt increases, pass through regulating wheel, the pressure of pressure-strain sheet also increases, and by the comparison of circuit, and reacts, cut off the power supply of motor, and send warning.In addition, put the magnechuck that is located on workbench or the base, can play fixation, prevent from when operation, to move the irony workpiece.In conjunction with above designing two portions, reached the purpose that prevents that drill bit from fractureing.
Description of drawings
The invention will be further described with embodiment with reference to the accompanying drawings below.
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the structural representation of driving belt and regulating wheel pressure sensor part.
Fig. 3 is the cross-sectional view of magnechuck.
Fig. 4 is a circuit diagram of the present invention.
Mark among the figure: 1 driving belt, 2 rocking bars, 3 drill chucks, 4 magnechucks, 5 workbench, 6 bases, 7 pillars, 8 cabinets, 9 motors, 10 regulating wheel pressure sensors.
In magnechuck: 41 disk bodies, 42 filler rods, 43 coils.
In the regulating wheel pressure sensor: 101 regulating wheels, 102 pressure-strain sheets, 103 stage clips, 104 housings, 105 push rods.
The specific embodiment
As shown in Figure 1, embodiment prevents the bench drill that drill bit fractures, comprise base 6, pillar 7, be enclosed within workbench 5 and the cabinet 8 and the motor 9 at pillar 7 middle parts, cabinet 8 is located at the top of pillar 7, comprising main shaft, be enclosed within the drill chuck 3 on the main shaft, and gear, the rocking bar 2 of handling the main shaft lifting, motor 9 is installed on the cabinet 8, rotates by belt pulley and driving belt 1 drive shaft.
Referring to Fig. 2, regulating wheel pressure sensor 10, form by belt stretcher and pressure-strain sheet 102, belt stretcher is made up of regulating wheel 101, stage clip 103, housing 104, push rod 105, housing 104 is fixed on the cabinet, regulating wheel 101 is installed in the front end of push rod 105, is pressed on by stage clip 103 on the driving belt 1 of drilling machine, and pressure-strain sheet 102 is located in the cross section of push rod 105.
Referring to Fig. 3, magnechuck is by disk body 41, coil 43, and the filler rod 42 of sealing usefulness is formed.Two groups up and down of coils 43 minutes are distributed in the upper and lower surface of disk body 41, coil serial or parallel connection.
Can be adsorbed on below the magnechuck 4 on workbench 5 or the base 6, can play fixation to the irony workpiece above.
Referring to Fig. 4, control circuit includes amplifying circuit, voltage comparator, output control circuit and alarm, and each several part order successively is electrically connected.
The power supply of circuit is made up of transformer B, rectifier bridge D2, integrated voltage stabilizer IC3, filter capacitor C2, C3.
Amplifying circuit is formed differential amplifier circuit by integrated operational amplifier IC1 and peripheral negative feedback resistor R1 thereof, and the input of amplifying circuit is connected with pressure-strain sheet electricity 102 as the input of control circuit.
Voltage comparator is made up of integrated operational amplifier IC2 and peripheral resistance R 3, R4 and potentiometer W thereof.The resistance R 2 of input and capacitor C1 form integrating circuit, and the burst pulse that can prevent interfering signal impacts the input of IC2.Potentiometer W regulates relatively current potential of benchmark, the setting when being used to use the different drill bit of thickness.The latching circuit of forming by controllable silicon BCR and R5, R6 on the IC2 output.
Output control circuit is made up of the relay J and the protection diode D1 thereof that are connected on the controllable silicon BCR, and relay contact switch JK is connected in the electric power loop of motor 9 as the output control terminal of control circuit.
The in addition buzzer FMQ in parallel with relay J as warning circuit, in the drill bit excess load, sends warning during circuit operation.
In the circuit, the power supply of magnechuck 4 is provided by the circuit that rectifier bridge D3, filter capacitor C4 form.
During work, connect power switch K, according to the drill bit of different thicknesses, regulator potentiometer W selects corresponding setting value.
During operate as normal, pressure-strain sheet electricity 102 output potentials are low, and also deficiency is so that IC2 overturns after IC1 amplifies, and BCR ends, and J is failure to actuate, and JK normally connects, motor 9 work, drilling machine normal operation.
When drill bit was excessive owing to loading appears in reasons such as workpiece shift, chip removal are smooth, pressure is excessive, the moment of torsion of main shaft strengthened, and driving belt 1 pulling force increases; pass through regulating wheel; the pressure of pressure-strain sheet 102 also increases, and output potential raises, and makes the IC2 upset after IC1 amplifies; trigger the BCR conducting; the J action, JK disconnects, and motor 9 quits work; buzzer FMQ sends warning simultaneously, plays the effect of protection drill bit.
In conjunction with putting the magnechuck 4 that is located on workbench 5 or the base 6, can play fixation to the irony workpiece, prevent from when operation, to move, reached the purpose that prevents that drill bit from fractureing.
Claims (3)
1. prevent the bench drill that drill bit fractures, comprise base (6), pillar (7), be enclosed within the workbench (5) at pillar (7) middle part, and cabinet (8) and motor (9), it is characterized in that: cabinet (8) is provided with regulating wheel pressure sensor (10), form by belt stretcher and pressure-strain sheet (102), regulating wheel wherein (101) is pressed on the driving belt (1) of drilling machine, pressure-strain sheet (102) is located in the push rod (105) of regulating wheel, pressure-strain sheet (102) is electrically connected with the input of control circuit, and the output control terminal of control circuit is connected in the power input of motor (9).
2. the bench drill that prevents that drill bit from fractureing as claimed in claim 1 is characterized in that: also be provided with magnechuck (4) on the drilling machine, magnechuck is made up of two groups of electromagnet up and down, is two-sided sucker, puts to be located on workbench (5) or the base (6).
3. the bench drill that prevents that drill bit from fractureing as claimed in claim 1 or 2, it is characterized in that: control circuit includes amplifying circuit, voltage comparator, output control circuit and alarm, order is electrically connected successively, the input of amplifying circuit is as the input of control circuit, be electrically connected with pressure-strain sheet (102), relay contact switch in the control circuit (JK) is connected in the electric power loop of motor (9) as the output control terminal of control circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610052358 CN1876298A (en) | 2006-07-07 | 2006-07-07 | Bench drill for preventing drill bit break |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610052358 CN1876298A (en) | 2006-07-07 | 2006-07-07 | Bench drill for preventing drill bit break |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1876298A true CN1876298A (en) | 2006-12-13 |
Family
ID=37508951
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610052358 Pending CN1876298A (en) | 2006-07-07 | 2006-07-07 | Bench drill for preventing drill bit break |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1876298A (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101941161A (en) * | 2010-10-09 | 2011-01-12 | 杨晓伟 | Safe protector of machine tool |
| CN101979216A (en) * | 2010-09-21 | 2011-02-23 | 江苏恒力组合机床有限公司 | Drive belt tension device for dynamically balancing and compensating tension force |
| CN102294604A (en) * | 2011-06-07 | 2011-12-28 | 山东华盛中天工程机械有限责任公司 | Fixture for processing inner hole of workpiece |
| CN103395066A (en) * | 2013-07-17 | 2013-11-20 | 袁培江 | Quick-change drilling end effector with function of posture adjustment |
| CN103406571A (en) * | 2013-08-16 | 2013-11-27 | 苏州市合昌电器有限公司 | Drilling machine with protective device |
| CN104875051A (en) * | 2015-06-11 | 2015-09-02 | 渤海大学 | Numerical-control machine tool |
| CN105436570A (en) * | 2014-09-30 | 2016-03-30 | 无锡利博科技有限公司 | Drilling device with alarm indication and automatic rotating speed regulation functions |
| CN105522196A (en) * | 2014-09-30 | 2016-04-27 | 无锡利博科技有限公司 | Intelligent adjustment and control drilling machining device |
| CN108032125A (en) * | 2017-12-26 | 2018-05-15 | 宣城新维保网络技术有限公司 | A kind of intelligent safety valve and method of controlling security for lathe |
| CN111805270A (en) * | 2020-07-29 | 2020-10-23 | 宁波品晟模具有限公司 | Clamping device for machining plane on numerical control milling machine |
| CN113352103A (en) * | 2021-05-28 | 2021-09-07 | 杭州职业技术学院 | Multi-station building threaded steel sleeve drill chamfering and tapping integrated equipment |
-
2006
- 2006-07-07 CN CN 200610052358 patent/CN1876298A/en active Pending
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101979216A (en) * | 2010-09-21 | 2011-02-23 | 江苏恒力组合机床有限公司 | Drive belt tension device for dynamically balancing and compensating tension force |
| CN101941161A (en) * | 2010-10-09 | 2011-01-12 | 杨晓伟 | Safe protector of machine tool |
| CN102294604A (en) * | 2011-06-07 | 2011-12-28 | 山东华盛中天工程机械有限责任公司 | Fixture for processing inner hole of workpiece |
| CN103395066A (en) * | 2013-07-17 | 2013-11-20 | 袁培江 | Quick-change drilling end effector with function of posture adjustment |
| CN103395066B (en) * | 2013-07-17 | 2015-05-20 | 袁培江 | Quick-change drilling end effector with function of posture adjustment |
| CN103406571A (en) * | 2013-08-16 | 2013-11-27 | 苏州市合昌电器有限公司 | Drilling machine with protective device |
| CN105522196A (en) * | 2014-09-30 | 2016-04-27 | 无锡利博科技有限公司 | Intelligent adjustment and control drilling machining device |
| CN105436570A (en) * | 2014-09-30 | 2016-03-30 | 无锡利博科技有限公司 | Drilling device with alarm indication and automatic rotating speed regulation functions |
| CN104875051A (en) * | 2015-06-11 | 2015-09-02 | 渤海大学 | Numerical-control machine tool |
| CN104875051B (en) * | 2015-06-11 | 2017-03-08 | 渤海大学 | A kind of Digit Control Machine Tool |
| CN108032125A (en) * | 2017-12-26 | 2018-05-15 | 宣城新维保网络技术有限公司 | A kind of intelligent safety valve and method of controlling security for lathe |
| CN111805270A (en) * | 2020-07-29 | 2020-10-23 | 宁波品晟模具有限公司 | Clamping device for machining plane on numerical control milling machine |
| CN113352103A (en) * | 2021-05-28 | 2021-09-07 | 杭州职业技术学院 | Multi-station building threaded steel sleeve drill chamfering and tapping integrated equipment |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |