CN201002237Y - Control system used for electric wrench digital display twisting moment value - Google Patents
Control system used for electric wrench digital display twisting moment value Download PDFInfo
- Publication number
- CN201002237Y CN201002237Y CNU2006201087431U CN200620108743U CN201002237Y CN 201002237 Y CN201002237 Y CN 201002237Y CN U2006201087431 U CNU2006201087431 U CN U2006201087431U CN 200620108743 U CN200620108743 U CN 200620108743U CN 201002237 Y CN201002237 Y CN 201002237Y
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- torque value
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- 230000003321 amplification Effects 0.000 claims description 7
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 7
- 230000000903 blocking effect Effects 0.000 description 3
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- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
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Abstract
The utility model relates to a control system for the torque value digital display of a motor spanner, which comprises a direct current power supply, a motor, a signal acquisition circuit, a digital torque value display circuit, a button circuit, an output control circuit and a microprocessor. The microprocessor, which is connected with the digital torque value display circuit and the button circuit, is used for calculate the sampled data of the signal acquisition circuit into torque value, which is displayed by the digital torque value display circuit, and for testing the button from the button circuit and the handling the function of the button. The motor, of which one phase is connected with the microprocessor, is used for sending motor turning signal to the microprocessor. According to the technical proposal of the utility model, the operation of the motor spanner is controlled through adding digital display function and setting the target torque value by the button, so that the locking degree of the motor locking screw is easily controlled. When the locking torque reaches the setting value, the signal alarm can be automatically displayed, and the machine is stopped for seconds. The utility model is provided with relatively simple structure and convenient operation.
Description
Technical field
The utility model relates to the control system that a kind of numeral that is used for electric wrench shows torque value.
Background technology
Present employed electric impact wrench, form is varied, but used in the market various electric impact wrenches, in use have problems, as the day for announcing be on August 11st, 2004, notification number is CN2631691, the patent No. is the Chinese utility model patent of ZL03255828.7, owing to be use electronic lock screw, but can only be only intuitively in using, because the torque value that this machine can not reach when locking is made any demonstration to the degree of blocking (being locking torque) of screw.When in use particularly having than higher requirement, go wrong easily, or lock tightly inadequately degree of blocking, or lock accessories such as too tight damaged screws.
Summary of the invention
The utility model provides a kind of employing microprocessor samples and calculates demonstration torque value and the control system of moving according to torque value control electric wrench at problems of the prior art.
The utility model is solved by following technical proposals:
A kind of control system that is used for electric wrench Digital-display torque value: this system is made up of signal acquisition circuit, digital torque value display circuit, key circuit, dc source, output control circuit, microprocessor and motor.
Described signal acquisition circuit comprises current sampling resistor R, signal amplification circuit, signal sample circuit, and described current sampling resistor R is connected with microprocessor by signal amplification circuit, signal sample circuit respectively;
Described microprocessor is connected with digital torque value display circuit, key circuit, is used for being calculated to be torque value and showing and to the key test and the corresponding key function treatment of button from the signal acquisition circuit sampled data.
Described output control circuit comprises switching tube M, and described microprocessor is by switching tube M control selection of Motor actuating switch pipe M1 or switching tube M2, and switching tube M1 and dc source are contacted; Motor one is connected with microprocessor, is used for sending the motor steering signal to microprocessor;
As preferably, described switching tube M is the MOS switching tube.
As preferably, described dc source is+12V.
Adopt the technical solution of the utility model, control the running of electric wrench, be convenient to control the degree of blocking of electric locking screw by increasing digital Presentation Function and button target setting torque value.When locking torque reaches setting, can show signal alarm automatically, and stop the machine run several seconds automatically that structure is simple relatively, and is easy to operate.
Description of drawings
Fig. 1 is an electrical block diagram of the present utility model
Specific implementation method
Below be in conjunction with the accompanying drawings technology of the present utility model to be described in further detail:
A kind of control system that is used for electric wrench Digital-display torque value: comprise microprocessor 2, dc source 7, motor 1, signal acquisition circuit, digital torque value display circuit, key circuit and output control circuit composition.
Described signal acquisition circuit comprises current sampling resistor R, signal amplification circuit 6, signal sample circuit 5, and described current sampling resistor R is connected with microprocessor 2 by signal amplification circuit 6, signal sample circuit 5 respectively;
Described output control circuit comprises switching tube M, microprocessor 2 is selected actuating switch pipe M1 or switching tube M2 by switching tube M control motor 1, switching tube M1 and dc source 7 polyphones, motor 1 one is connected with microprocessor 2, be used for sending the motor steering signal to microprocessor 2, the switching tube M of present embodiment is the MOS switching tube, and dc source 7 is+12V.
Described microprocessor 2 is connected with digital torque value display circuit 3, key circuit 4, is used to control from the data computation of signal acquisition circuit sampling become torque value and show and to the key test and the corresponding key function treatment of button.
Control system of the present utility model can preestablish target torque value by key circuit 4, during operation, microprocessor 2 carries out deburring, the anti-interference moment that calculates impact according to the algorithm of Kinetic Energy Calculation principle that reaches with the sampled data of first, shows by digital torque value display circuit 3 outputs after converting again.When starting electric wrench, switching tube M1 conducting, motor 1 running motor 1 simultaneously sends motor 1 turn signal to microprocessor 2, Acquisition Circuit is by current sampling resistor R, signal amplification circuit 6, signal sample circuit 5, the data of gathering are sent into microprocessor 2, the data that to gather through microprocessor 2 compare with target data by key assignments, if the data of gathering are less than the value of pressing key assignments, then motor 1 remains in operation, and greater than the value of pressing key assignments, microprocessor 2 is by MOS switching tube M as if the data of gathering, control motor 1 turns to, be about to motor 1 and switching tube M2 conducting, motor 1 stops the machine run several seconds, can show signal alarm automatically.
Present embodiment in operating process, adopts 3 bit digital to show, promptly the electric wrench plug is connected with the power supply of 12V.The display of digital torque value display circuit 3 controls shows that " 000 " shows that it can use, be provided with if do not do other, electric wrench just and traditional electric wrench be that the same moment of torsion that do not have is controlled.
If during (target) moment of torsion that will reach by button setting, also can set by the key switch adjustment of key circuit 4 controls increases torque value or reduces torque value.
Press again switching tube M1 and switching tube M2 formed tight/unclamp the pass, electric wrench will be started working, the display of digital torque value display circuit 3 controls also begins to show its current torque value that arrives, along with its work, the moment of torsion that shows is slowly increasing, until the torque value that the user is provided with.When the arrival value of setting, electric wrench stops automatically, and display will show " END ", and electric wrench will recover the previous moment of torsion setting that the demonstration user is set of user after 3 seconds.
If unclamp (tight/pine) switch, at this moment electric wrench shows the present torque value that arrives, and keeps the previous target torque value that is reached in advance simultaneously.And electric wrench shuts down.
If change the torque value that will reach, also can set again by the key switch of key circuit 4 controls again.
Claims (3)
1. control system that is used for electric wrench Digital-display torque value, comprise dc source (7), motor (1), it is characterized in that, also comprise signal acquisition circuit, digital torque value display circuit (3), key circuit (4), output control circuit and microprocessor (2);
Described signal acquisition circuit comprises current sampling resistor (R), signal amplification circuit (6), signal sample circuit (5), and described current sampling resistor (R) is connected with microprocessor (2) by signal amplification circuit (6), signal sample circuit (5) respectively;
Described microprocessor (2) is connected with digital torque value display circuit (3), key circuit (4), described microprocessor (2) is used for being calculated to be torque value from signal acquisition circuit (5) sampled data, show by digital torque value display circuit (3), and to test of button key and corresponding key function treatment from key circuit (4);
Described output control circuit comprises switching tube (M), and described microprocessor (2) is selected actuating switch pipe (M1) or switching tube (M2) by switching tube (M) control motor (1), switching tube (M1) and dc source (7) polyphone; Motor (1) one is connected with microprocessor (2), is used for sending motor (1) turn signal to microprocessor (2).
2. a kind of control system that is used for electric wrench Digital-display torque value according to claim 1 is characterized in that described switching tube (M) is the MOS switching tube.
3. a kind of control system that is used for electric wrench Digital-display torque value according to claim 1 and 2 is characterized in that described dc source is+12V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006201087431U CN201002237Y (en) | 2006-10-19 | 2006-10-19 | Control system used for electric wrench digital display twisting moment value |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006201087431U CN201002237Y (en) | 2006-10-19 | 2006-10-19 | Control system used for electric wrench digital display twisting moment value |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201002237Y true CN201002237Y (en) | 2008-01-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006201087431U Expired - Fee Related CN201002237Y (en) | 2006-10-19 | 2006-10-19 | Control system used for electric wrench digital display twisting moment value |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201002237Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102501209A (en) * | 2011-09-29 | 2012-06-20 | 国家电网公司 | Direct-current motor-driven wrench |
| CN103052472A (en) * | 2010-08-17 | 2013-04-17 | 松下电器产业株式会社 | Impact Rotary Tool |
| CN103386666A (en) * | 2012-05-11 | 2013-11-13 | 数泓科技股份有限公司 | Electronic torque wrench with automatic compensation device for output torque |
| CN103507014A (en) * | 2012-06-21 | 2014-01-15 | 数泓科技股份有限公司 | Electronic torque tool with multiplier automatic compensation device and its operating method |
| CN104656551A (en) * | 2014-09-02 | 2015-05-27 | 苏州宝时得电动工具有限公司 | Control method and system for electric tool, and electric tool |
-
2006
- 2006-10-19 CN CNU2006201087431U patent/CN201002237Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103052472A (en) * | 2010-08-17 | 2013-04-17 | 松下电器产业株式会社 | Impact Rotary Tool |
| CN103052472B (en) * | 2010-08-17 | 2014-12-24 | 松下电器产业株式会社 | Impact Rotary Tool |
| CN102501209A (en) * | 2011-09-29 | 2012-06-20 | 国家电网公司 | Direct-current motor-driven wrench |
| CN103386666A (en) * | 2012-05-11 | 2013-11-13 | 数泓科技股份有限公司 | Electronic torque wrench with automatic compensation device for output torque |
| CN103507014A (en) * | 2012-06-21 | 2014-01-15 | 数泓科技股份有限公司 | Electronic torque tool with multiplier automatic compensation device and its operating method |
| CN103507014B (en) * | 2012-06-21 | 2015-11-11 | 数泓科技股份有限公司 | Electronic torque tool with multiplier automatic compensation device and its operating method |
| CN104656551A (en) * | 2014-09-02 | 2015-05-27 | 苏州宝时得电动工具有限公司 | Control method and system for electric tool, and electric tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080109 Termination date: 20131019 |