CN205734654U - The automatic control system of electric tool - Google Patents
The automatic control system of electric tool Download PDFInfo
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- CN205734654U CN205734654U CN201620702701.4U CN201620702701U CN205734654U CN 205734654 U CN205734654 U CN 205734654U CN 201620702701 U CN201620702701 U CN 201620702701U CN 205734654 U CN205734654 U CN 205734654U
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Abstract
This utility model relates to field of power tools, particularly relate to the automatic control system of a kind of electric tool, wherein, electric tool includes motor and motor output shaft, described automatic control system includes power module, sensor assembly, driving module, memory module and main control module, described power module electrical connection main control module, described main control module is electrically connected sensor assembly, memory module and drives module, described driving module electrical connection motor；Described sensor assembly includes Hall element and current sensor, and described Hall element is for measuring the rotating speed of motor, and described current sensor is for measuring the electric current of motor.This utility model realizes screw tightening or unscrews automatically controlling of degree；The information such as record, preservation motor dropout work times, operating time, conveniently process after sale；Set button by forward and backward torque value, the number of turns sets button and display module, it is achieved the input of information and display, convenient use, and intelligence degree is high.
Description
Technical field
The present invention relates to field of power tools, particularly relate to the automatic control system of a kind of electric tool.
Background technology
Current electric tool there is problems in that during being unscrewed by securing member
1. higher due to rotating speed, very difficult control turns the degree of degree of tightness firmware.Such as can not stop after turning loose several circles, or
Stop at the former circle of the bolt that comes off.Such as work high above the ground, during the turn of the screw, if electronic pulling can not be stopped before coming off
Hands, nut is easy for flying out, and falling object from high altitude is the biggest on personal security impact.
Other implementations the most existing, the linear change rate declined by current threshold or electric current, or pass through motor
Rotary speed threshold value or percentage of speed rise etc., add early stage loading condition to judge whether nut and unscrew；The method is easy to cause
Erroneous judgement, as current sampling signal is interfered, or because user's improper use loads the situations such as unexpected reduction, and owing to load is sentenced
The filter delay that disconnected needs are certain, it is not easy to stopped the number of turns accurately.
The sampling of the most existing judgment mode manifold overcurrent judges load, and the unidirectional change of load determines that nut is twisted
The state of pine, but during motor real-world operation, due to speed governing mechanism and the existence of motor feedback, instantaneous current value is to become always
Change, generally require simulation or digital filtering just can be sampled reliably, the most therefore considerably increase hardware and soft
The complexity of part design；
4. present mode cannot obtain the load operating condition that electric tool is current and long-term, and intelligence degree is low, uses
Inconvenient.
Summary of the invention
In order to solve the problems referred to above, the invention provides automatically controlling when a kind of electric tool carries out tightening or unscrewing work
System processed.
The technical scheme is that: the automatic control system of a kind of electric tool, wherein, electric tool includes motor and electricity
Machine output shaft, described automatic control system includes power module, sensor assembly, driving module, memory module and master control mould
Block, described power module electrical connection main control module, described main control module is electrically connected sensor assembly, memory module and drives
Dynamic model block, described driving module electrical connection motor；Described sensor assembly includes Hall element and current sensor, described
Hall element is for measuring the rotating speed of motor, and described current sensor is for measuring the electric current of motor.
Further, described sensor assembly also includes that temperature sensor, described temperature sensor are used for measuring electronic work
The internal temperature of tool.
Further, described automatic control system also includes host computer and communication module, and described main control module is by logical
News module communication connects host computer.
Further, described automatic control system also includes that forward and backward torque value sets button, described forward and backward torsion
Value sets button electrical connection main control module.
Further, described automatic control system also includes that the number of turns sets button, and it is main that the described number of turns sets button electrical connection
Control module.
Further, described automatic control system also includes display module, and the most corresponding forward and backward of described display module is turned round
Force value sets button and the number of turns sets button, and is electrically connected to main control module.
The invention has the beneficial effects as follows: realize screw tightening or unscrew automatically controlling of degree；Record, preservation motor are threaded off
The information such as work times, operating time, conveniently processes after sale；By forward and backward torque value set button, the number of turns set button with
And display module, it is achieved the input of information and display, convenient use, intelligence degree is high.
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 that hardware of the present invention connects block diagram；
Fig. 2 is overall flow block diagram of the present invention；
Fig. 3 be the present invention thread off mode of operation time about parameter X performance diagram.
Detailed description of the invention
Below in conjunction with accompanying drawing, technical scheme is further described, but the present invention is not limited to these in fact
Execute example.
When electric tool carries out tightening or unscrewing screw, block the rotation connecting assembly owing to external loading is bigger,
Torque spring deformation can be caused to produce cyclic stress release, and stress promotes impact block to export load by spring, this process
It is the dropout mode of operation of electric tool.
When electric tool enters dropout mode of operation, owing to torque spring deformation degree is different, corresponding stress is different, torsion
Spring deformation is the biggest, and stress is the strongest, and corresponding motor load is the biggest, and motor speed is the lowest, and circuital current is the biggest.Torque spring reaches
After deformation limit, stress is discharged by impact block, returns to normal load mode of operation in short-term, and now motor speed gos up, and drives
The electric current of circuit reduces.During dropout mode of operation, the rotating speed of motor and electric current are some cycles change, and due to same money type
Motor, circuit, spring and impact block parameter are basically identical, then this rotating speed and the parameter such as the period of change of electric current and amplitude are basic
Unanimously.
In conjunction with accompanying drawing 1, the automatic control system of a kind of electric tool, wherein, electric tool includes motor and motor output
Axle, described automatic control system includes power module, sensor assembly, driving module, memory module and main control module, described
Power module electrical connection main control module, described main control module is electrically connected sensor assembly, memory module and drives module,
Described driving module electrical connection motor；Described sensor assembly includes Hall element, temperature sensor, current sensor, institute
Stating Hall element for measuring the rotating speed of motor, described temperature sensor is for measuring the internal temperature of electric tool, described
Current sensor is for measuring the electric current of motor.
Rotating speed that control module is collected by sensor assembly, current information, carry out electric tool dropout mode of operation
And the judgement of motor positive and inverse.If motor is for rotating forward, then controls motor after reaching the dropout work times set, stop work
Make；If motor is reversion, then control to quit work after motor reaches the rotation number of turns set after exiting dropout mode of operation.Separately
Outward, if electric tool enters dropout mode of operation and detects that motor outputting torsion value reaches preset torque value, then motor is controlled
Quit work.Realize screw tightening or unscrew automatically controlling of degree.
Temperature sensor, for measuring the internal temperature of electric tool, if the temperature anomaly within electric tool, is then passed through
Control module controls electric tool and quits work.
Automatic control system also includes that host computer and communication module, described main control module are connected by communication module communication
Host computer.Information that sensor acquisition is arrived by main control module, the number of times of motor dropout work, motor outputting torsion value, time etc.
Information is transferred to host computer by communication module.This information is stored, analyzes and processes by host computer.
Automatic control system also includes that forward and backward torque value sets button, the number of turns sets button, described forward and backward torsion
Value sets button, the number of turns sets button and is respectively arranged on housing, and forward and backward torque value sets button electrical connection main control module.
Automatic control system also includes that display module, described display module are located on housing, and described display module is the most right
Answer forward and backward torque value to set button and the number of turns sets button, and be electrically connected to main control module.Display module shows positive and negative
Turn torque value setting value and number of turns setting value.
Set button by forward and backward torque value, the number of turns sets button and display module, it is achieved the input of information and aobvious
Showing, convenient use, intelligence degree is high.
In conjunction with accompanying drawing 2, the autocontrol method of a kind of electric tool, described electric tool includes motor and motor output
Axle, described control method comprises the following steps: detection is for representing parameter X of motor load；Electric tool is carried out according to parameter X
The judgement of dropout mode of operation；Judge the rotating of motor；According to electric tool dropout mode of operation and motor positive and inverse
Judge, generate corresponding control signal, and then control motor work.
Wherein, described parameter X is rotating speed or the electric current of motor.Gather information by Hall element, the most simply change
Calculation obtains reliable motor speed data.The current data of motor can be obtained by current sensor.
When electric tool is started working, first carry out the judgement of systematic parameter, the systematic parameter such as including load, temperature.
It is provided with voltage-current sensor, temperature sensor etc. inside electric tool, changes or directly collect the ginsengs such as load, temperature
Number.According to the judgement of these parameters, if this abnormal parameters, as exceeded setting load, temperature etc., then electric tool output error letter
Breath, warning, then control electric tool and quit work.
Wherein, electric tool dropout mode of operation judges method particularly includes: obtains electric tool and closes when real work
Characteristic curve in parameter X；Obtain and record electric tool maximum X of parameter X when dropout mode of operationmax, minima
Xmin, maximum XmaxWith minima XminDifference i.e. amplitude △ X, adjacent two maximum XmaxCorresponding time difference i.e. cycle △
T；According to electric tool when real work about the characteristic curve of parameter X and electric tool when dropout mode of operation about
The maximum X of parameter Xmax, minima Xmin, amplitude △ X and cycle △ T judge whether electric tool enters dropout mode of operation
Wherein, the determination methods of electric tool entrance dropout mode of operation is:
One. according to electric tool characteristic curve about parameter X when real work, if at this characteristic cycle △
In T, maximum X occursmaxWith minima Xmin, then can determine whether to enter dropout mode of operation into electric tool；
Two. according to electric tool characteristic curve about parameter X when real work, if this characteristic amplitude is △
X and cycle are △ T, then can determine whether to enter dropout mode of operation into electric tool.
Alternatively, it is also possible to cycle △ T is converted to frequency F to carry out the judgement of electric tool dropout mode of operation.If if
This characteristic amplitude is △ X and frequency is F, then can determine whether to enter dropout mode of operation into electric tool.
As it is shown on figure 3, what solid line represented is the rotation speed characteristic of electric tool dropout mode of operation, what dotted line represented is
The current characteristic curve of electric tool dropout mode of operation.For rotation speed characteristic, at T0, T2Time motor reach maximum
Rotating speed A1, T1、T3Time minimize rotating speed A0, △ A=A1-A0, △ T=T2-T0=T3-T1.And actually electric tool enters de-
After button mode of operation, its rotating speed is cyclically-varying.In the range of certain error, by judge the rotary speed data that obtained and time
Between data dropout mode of operation can be judged.
If it addition, electric tool enters dropout mode of operation, then start to record number n that amplitude △ X occurs, the most electronic work
The de-mouth work times n that tool occurs.
Wherein, the rotating of motor is judged by outside input electrical signal.
Wherein, if the method for described control motor work is particularly as follows: motor is for rotating forward, then controls motor and reaching setting
Quit work after dropout work times；If motor is reversion, then controls motor after exiting dropout mode of operation, reach setting
Quit work after rotating the number of turns.When motor rotates forward, controlled by the dropout work times controlled after entering de-mouth mode of operation
Screw tighten degree；During motor reversal, control the motor rotating cycle after leaving dropout mode of operation to control twisting of screw
Pine degree.
It addition, carry out motor output shaft torque value calculating after the judgement of dropout mode of operation, if electric tool enters de-
Detain mode of operation and detect that motor outputting torsion value reaches preset torque value, then controlling motor and quit work.Entered by motor
Enter to thread off the setting of mode of operation rear motor outputting torsion value, and when motor output reaches the torque value set, motor stops work
Make, and then control tightening and unscrewing degree of screw.
Wherein, if the de-mouth work times n that motor occurs reaches predetermined work number of times, then control motor and quit work,
User is reminded to change easily worn part.Release member has its relatively-stationary service life, and its service life is main and dropout work
Make number of times relevant, by the calculating of dropout work times, before release member reaches service life, remind user to change in time.
Specific embodiment described herein is only to present invention spirit explanation for example.Technology neck belonging to the present invention
Described specific embodiment can be made various amendment or supplements or use similar mode to replace by the technical staff in territory
Generation, but without departing from the spirit of the present invention or surmount scope defined in appended claims.
Claims (6)
1. an automatic control system for electric tool, wherein, electric tool includes motor and motor output shaft, and its feature exists
In: described automatic control system includes power module, sensor assembly, driving module, memory module and main control module, described
Power module electrical connection main control module, described main control module is electrically connected sensor assembly, memory module and drives module,
Described driving module electrical connection motor；Described sensor assembly includes Hall element and current sensor, and described Hall passes
Sensor is for measuring the rotating speed of motor, and described current sensor is for measuring the electric current of motor.
The automatic control system of electric tool the most according to claim 1, it is characterised in that described sensor assembly also wraps
Including temperature sensor, described temperature sensor is for measuring the internal temperature of electric tool.
The automatic control system of electric tool the most according to claim 1, it is characterised in that described automatic control system is also
Including host computer and communication module, described main control module connects host computer by communication module communication.
The automatic control system of electric tool the most according to claim 1, it is characterised in that described automatic control system is also
Setting button including forward and backward torque value, described forward and backward torque value sets button electrical connection main control module.
The automatic control system of electric tool the most according to claim 1, it is characterised in that described automatic control system is also
Setting button including the number of turns, the described number of turns sets button electrical connection main control module.
6. according to the automatic control system of the electric tool described in claim 4 or 5, it is characterised in that described in automatically control and be
System also includes display module, and the most corresponding forward and backward torque value of described display module sets button and the number of turns sets button, and
It is electrically connected to main control module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620702701.4U CN205734654U (en) | 2016-07-01 | 2016-07-01 | The automatic control system of electric tool |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620702701.4U CN205734654U (en) | 2016-07-01 | 2016-07-01 | The automatic control system of electric tool |
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| CN205734654U true CN205734654U (en) | 2016-11-30 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106002808A (en) * | 2016-07-01 | 2016-10-12 | 杭州势垒科技有限公司 | Automatic control method and system of electric tool |
| CN107157544A (en) * | 2017-06-15 | 2017-09-15 | 北京爱康宜诚医疗器材有限公司 | Medical swing saw |
| CN107942802A (en) * | 2017-12-01 | 2018-04-20 | 陈文理 | A kind of impact type electric driven tool monitoring apparatus |
| CN109426174A (en) * | 2017-08-21 | 2019-03-05 | 张家港欧博金属工具有限公司 | A kind of embedded control system and control method of electric tool |
| CN113814943A (en) * | 2020-06-18 | 2021-12-21 | 南京德朔实业有限公司 | Electric tool and electric tool control method |
| CN113904612A (en) * | 2021-08-31 | 2022-01-07 | 深圳市华思旭科技有限公司 | Electric tool and rotating speed adjusting method |
| CN114614703A (en) * | 2022-03-17 | 2022-06-10 | 广东新比克斯实业股份有限公司 | Based on intelligent electric tool of electric power output management and control |
-
2016
- 2016-07-01 CN CN201620702701.4U patent/CN205734654U/en active Active
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106002808A (en) * | 2016-07-01 | 2016-10-12 | 杭州势垒科技有限公司 | Automatic control method and system of electric tool |
| CN106002808B (en) * | 2016-07-01 | 2017-12-19 | 杭州势垒科技有限公司 | The autocontrol method and system of electric tool |
| CN107157544A (en) * | 2017-06-15 | 2017-09-15 | 北京爱康宜诚医疗器材有限公司 | Medical swing saw |
| CN109426174A (en) * | 2017-08-21 | 2019-03-05 | 张家港欧博金属工具有限公司 | A kind of embedded control system and control method of electric tool |
| CN107942802A (en) * | 2017-12-01 | 2018-04-20 | 陈文理 | A kind of impact type electric driven tool monitoring apparatus |
| CN113814943A (en) * | 2020-06-18 | 2021-12-21 | 南京德朔实业有限公司 | Electric tool and electric tool control method |
| CN113814943B (en) * | 2020-06-18 | 2023-12-01 | 南京泉峰科技有限公司 | Electric tool and electric tool control method |
| CN113904612A (en) * | 2021-08-31 | 2022-01-07 | 深圳市华思旭科技有限公司 | Electric tool and rotating speed adjusting method |
| CN114614703A (en) * | 2022-03-17 | 2022-06-10 | 广东新比克斯实业股份有限公司 | Based on intelligent electric tool of electric power output management and control |
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