CN108972439B - Intelligent power screw driver torque calibration device and system - Google Patents
Intelligent power screw driver torque calibration device and system Download PDFInfo
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- CN108972439B CN108972439B CN201811146976.4A CN201811146976A CN108972439B CN 108972439 B CN108972439 B CN 108972439B CN 201811146976 A CN201811146976 A CN 201811146976A CN 108972439 B CN108972439 B CN 108972439B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
- B25B23/14—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers
- B25B23/147—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers specially adapted for electrically operated wrenches or screwdrivers
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/30—Computing systems specially adapted for manufacturing
Abstract
The invention discloses an intelligent power screw driver torque calibration device and system, and relates to the field of assembly production tool calibration devices and systems. The invention can realize the modularization of torque detection, and the output torque of the electric batch to be checked is closer to the center of a measurement interval by arranging a plurality of torque detection modules, so that the checking precision is more accurate, and the checking range of the torque is larger; the plug-in replacement of the torque detection module can be realized, and meanwhile, the installation stability and the simple operation of the module are ensured; the torque detection locking can be realized, the loss or damage to the tool and the tool checking device caused by misoperation of personnel is prevented, and the supervision and monitoring of the checking process are realized.
Description
Technical Field
The invention relates to the field of assembly production tool calibration devices and systems, in particular to an intelligent power screw driver torque calibration device and system.
Background
At present, china has become the world electronic product manufacturing center, and in the next years, china's electronic related manufacturing industry still keeps a good development trend. Based on the key links in the whole production chain of the assembly of electronic parts, the production management equipment of the assembly workshop has a good market foundation and develops towards the directions of high efficiency, informatization management, automation, wisdom and the like, thereby promoting the innovation and development of the intelligent industry of Chinese production.
Power screw driver, including electric or pneumatic screw driver, etc. Among them, more commonly used electric screwdrivers are also called electric screwdrivers, electric screwdrivers or electric screwdrivers. The power screw driver is provided with a mechanism for adjusting and limiting torque output, and various screwdriver tools with different specifications are installed on the power screw driver for screwing and unscrewing screws. The power screw driver is widely used for assembly lines and is one of the necessary tools for most production enterprises. At present, in an equipment workshop, the torque of a power screw driver must be checked before working every day so as to ensure that the output torque of the power screw driver is in a proper range, prevent the damage to assembled products caused by overlarge torque in the screw tightening assembly process, and also prevent the damage or the shortening of the service life of the power screw driver caused by working under overload torque.
In actual assembly production, because the task items of screw assembly are numerous and the requirements are different, electric batches with different torque rated values are needed according to the requirements of the tasks; since the rated torque values of the electric lots are different, a torque calibrator with a proper measurement range is required to be selected for calibration. Meanwhile, considering that the level of operators is different, misoperation of electric batch correction is easy to cause, therefore, effective informationized management of operators, electric batches and a torque detection device is needed, so that the torque of the electric batch is prevented from being used for operation without correction, even the electric batch is not matched with an operation task, errors caused by mismatching with the torque correction device during electric batch correction are avoided, and the service life of the correction device caused by mismatching is shortened.
Disclosure of Invention
The invention provides an intelligent power screw driver torque correction device, which aims to solve the problems that the torque correction device cannot accurately correct due to a large number of specifications of the power screw driver, personnel management problems and correction matching problems in the correction process, and equipment loss or damage caused by misoperation of personnel are prevented.
An intelligent power screw driver torque calibration device, comprising:
a frame;
the fixed seat is arranged on the rack;
the torque testing module comprises a shell and a testing module, wherein the testing module is arranged in the shell, and the shell is matched with the fixing seat so that the torque testing module is arranged on the fixing seat in a plug-in mode;
the computer is arranged on the rack and comprises a display screen, a code reader and a network module;
the plug interface comprises a male interface and a female interface, wherein one of the male interface and the female interface is arranged on the fixed seat and is electrically connected with the computer; the other of the male and female interfaces is arranged on the shell and is electrically connected with the test module;
the locking device is arranged on the rack and positioned below the fixed seat, and the testing module locking device is used for releasing/locking the detection of the torque testing module;
the number of the torque test modules is more than two, and each torque test module is provided with a torque measurement range which is not completely overlapped.
Preferably, the test module includes a torque sensor, a detection processing module, an abutting mechanism and a torsion joint, wherein a detection end of the torque sensor is connected to the abutting mechanism, an output end of the torque sensor is electrically connected to the detection processing module, the other of the male and female interfaces is electrically connected to the detection processing module, and the abutting mechanism is elastically installed inside the shell and keeps a set distance from the torsion joint; the locking device comprises a locking rod and a driving device, wherein the locking rod is in driving connection with the driving device, and the locking rod can be driven to move so as to enable the abutting mechanism to be in contact with the torsion joint.
Further, the driving module comprises a motor and a screw rod transmission mechanism, and the screw rod transmission mechanism is in driving connection with the motor and the lock rod.
Furthermore, the detection processing module comprises an amplifier, an analog-to-digital converter and a singlechip, and the output end of the torque sensor, the amplifier, the analog-to-digital converter and the singlechip are electrically connected in sequence; the motor is a servo motor, the servo motor comprises an optical encoder, and the output end of the optical encoder is electrically connected with the singlechip.
Still further still, the optical encoder includes optical position detector, photoelectric coupler and IO expansion board, optical position detector and photoelectric coupler photoconductive connection, photoelectric coupler electrical signal output part, IO expansion board and singlechip electric connection in proper order.
Still further still, the singlechip is STM32F103 model singlechip, torque sensor is SOP118 model torque sensor, the plug interface is the HARTING interface, the network module is WIFI, the code reader is bar code scanner or two-dimensional code scanner.
Preferably, a plurality of cabinets are arranged on the rack, the cabinets are matched with the shell to place the torque testing module, and a handle is arranged on the shell.
Preferably, the rack comprises a vehicle body, four casters are arranged at the bottom of the vehicle body, a lock rod is arranged at the side part of the vehicle body, and a keyboard cabinet and a main machine cabinet are arranged on the vehicle body.
Be applied to above-mentioned proofreading device's an intelligent power screwdriver moment of torsion proofreading, include:
the database is used for storing the information of the identity card of the operator, the information of the work task, the torque information of the power screw driver, the measuring range of the torque testing module and the historical torque checking information;
the identity recognition module is used for scanning an operator identity card and downloading operator identity card information from the database, if the operator is a proofreading person, the power screw driver recognition module is operated, and if the operator is a non-proofreading person, the locking state of the locking device is maintained;
the power screw driver identification module is used for scanning the power screw driver identification code, downloading work task information and power screw driver torque information from the database, operating the following torque test module identification information if the current power screw driver corresponds to the work task information, and keeping the locking state of the locking device if the current power screw driver does not correspond to the work task information;
the torque test module identification module is used for identifying a currently-in-place torque test module, downloading a measurement range of the torque test module from the database, and operating the torque test module selection module;
the torque test module selection module is used for calculating whether the current power screw driver is in optimal proofreading fit with the torque test module, if so, changing the locking device into a release state, and if not, keeping the locking state of the locking device and prompting the optimal measurement range of the torque test module.
Preferably, the system further comprises a display module;
the display module is used for displaying the torque measured value and the test result;
the display module is also used for displaying the judging results of the power screw driver identification module, the power screw driver identification module and the torque test module selection module.
In the using process of the invention, the number of the torque test modules is multiple, the measuring ranges are not completely overlapped, the torque test modules are connected to a computer after being installed, the computer can be connected to a database of an upper server through a network module for uploading and downloading data, the code reader is used for reading information and power screw driver in an operator information card, and the display is used for displaying measuring results or process operation instructions. When the checking process is carried out, firstly, an operator verifies identity information through code scanning; then, the task content of the operator and the corresponding electric screwdriver specification can be obtained; after an operator takes the power screw driver, verifying whether the power screw driver is taken or not through code scanning; and meanwhile, verifying whether the optimal torque test module is in the right state or not, and prompting an operator to detect by using the optimal torque test module. When this is done, the locking device will unlock the collation lock and the collation process starts.
Compared with the prior art, the invention has the technical effects that:
the invention can realize the modularization of torque detection, and the electric batch output torque to be checked is closer to the center of a measurement interval by arranging a plurality of torque detection modules, so that the checking precision is more accurate, and the checking range of the torque is larger;
2, the invention can realize the plug and pull replacement of the torque detection module, and simultaneously ensure the installation stability and the simple operation of the module;
the invention can realize the locking of torque detection, and prevent the misoperation of an operator from causing loss or damage to the tool and the tool correction device;
and 4, the invention can realize real-time management of personnel corresponding tasks and tools and realize supervision and monitoring of the assembly operation process.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following description will briefly introduce the drawings that are required to be used in the embodiments or the prior art descriptions, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic perspective view of a proofing apparatus according to the present invention;
FIG. 2 is a schematic perspective view of a portion of a proofing apparatus according to the present invention;
FIG. 3 is a schematic partial cross-sectional view of a proofing apparatus according to the present invention;
FIG. 4 is a schematic diagram of a circuit configuration of a calibration device according to the present invention;
FIG. 5 is a schematic diagram of a proofing system according to the present invention.
Reference numerals: the electric screwdriver 100, a car body 1, a calibration platform 2, a fixed seat 3, a torque testing module 4, a locking device 5, a shell 6, an abutting mechanism 7, a torque joint 8, a display screen 9, a lock rod 10, a servo motor 11, a screw rod transmission mechanism 12, a keyboard cabinet 13, a main cabinet 14 and casters 15.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention and the accompanying drawings. It should be noted that the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without any inventive effort, are intended to be within the scope of the invention.
One of the embodiments of the present invention will be described below with reference to the accompanying drawings.
An intelligent electric batch 100 torque calibration device, comprising: the device comprises a vehicle body 1, a calibration platform 2, a fixed seat 3, a torque testing module 4, a computer, a plug interface and a locking device 5. Specifically, the torque testing module 4 includes a housing 6, a torque sensor, a detection processing module, an abutment mechanism 7, and a torsion joint 8. The computer comprises a display screen 9, a code reader, a network module, a host and a keyboard. The locking means 5 comprise a locking bar 10 and driving means. The plug interface comprises a male interface and a female interface.
In this embodiment, the fixing base 3 is specifically disposed on the calibration platform 2, so as to facilitate the operation of an operator. The locking device 5 is arranged on the checking platform 2 and below the fixing base 3 so as not to interfere with the checking operation of an operator. The display and the code reader are arranged above the checking platform 2, so that the operator can observe and operate conveniently. Four casters 15 are arranged at the bottom of the car body 1, and a lock rod 10 is arranged at the side part of the car body 1, so that the checking device can flexibly move in a workshop, and operators on different assembly stations can conveniently perform torque checking operation on the electric batch 100. The car body 1 is provided with a keyboard cabinet 13 and a main machine cabinet 14, wherein the main machine cabinet 14 is provided with a sliding door, and the keyboard cabinet 13 is a push-pull keyboard tray, so that the function of protecting a computer is achieved. The network module and the host are arranged in the main machine cabinet 14, wherein the network module is WIFI, and the wireless network connection mode can facilitate the movement of the vehicle body 1. The keyboard is arranged on the keyboard tray. The vehicle body 1 is provided with a plurality of cabinets which are matched with the shell 6 to place the torque testing module 4, and the shell 6 is provided with a handle to store and protect the torque testing module 4 which is not in use.
Wherein, shell 6 cooperates with fixing base 3, in order to make the mode of the plug of torque test module 4 install in fixing base 3. Specifically, the fixing base 3 is of a C-shaped structure, a slot is formed in the bottom of the fixing base 3, the outer shell 6 is of a rectangular structure, a flange is arranged at the bottom of the fixing base, and the fixing base 3 is installed in a pluggable manner through a matching torque testing module 4 of the slot and the flange. The female interface is arranged on the inner side of the 3C-shaped structure of the fixed seat and is connected to the host through a wire; the male interface is mounted on the rear end surface of the housing 6 and is electrically connected to the detection processing module, and when the housing 6 is mounted on the fixing seat 3, the male interface and the female interface can be electrically connected. The shell 6 of the torque measurement module is matched with the fixed seat 3 and matched with the male interface and the female interface, so that the torque modules with different measurement ranges can be interchangeably installed on the fixed seat 3 to finish torque calibration operation, the torque calibration range is expanded, and the calibration precision is improved.
Among these, a detection end of the torque sensor is attached to the abutting mechanism 7 to detect the torque received by the abutting mechanism 7. The output end of the torque sensor is connected with the detection processing module through a lead, and the lead of the male interface is connected with the detection processing module so as to transmit the detection torque value and the specification information of the torque testing module 4. The abutting mechanism 7 is elastically installed inside the housing 6 and keeps a set distance from the torsion connector 8, so that the abutting mechanism 7 in an initial state is not in contact with the torsion connector 8, and even if the torsion connector 8 is in transmission connection with the electric screwdriver 100 and the electric screwdriver 100 is started, the torsion connector 8 only idles, a detection signal is not generated, and loss is not caused to the abutting mechanism 7. The locking device 5 comprises a locking rod 10 and a driving device, the locking rod 10 is in driving connection with the driving device, the locking rod 10 is pushed and enters the inside of the shell 6, the pushing abutting mechanism 7 moves and contacts with the torsion connector 8 and is tightly attached, at the moment, the torsion connector 8 is connected with the starting electric batch 100 again, a torque detection signal is generated, and the torque calibration operation is started. When the lock lever 10 is withdrawn from the housing 6, the abutment mechanism 7 will return to its original position under the action of the spring. The abutting mechanism 7 is matched with the torque joint for use, locking and releasing of torque calibration can be achieved, even if the electric batch 100 started is inserted during locking, the torque detection module is idle, loss or damage to the module can not be caused, calibration will start during releasing, and the corresponding relation between the electric batch 100 and the torque test module 4 is paired when the electric batch is released, so that calibration will operate under the conditions of high precision and low loss.
Among them, the number of the torque test modules 4 is four, and the test ranges of the four test modules are 5Nm to 10Nm,8Nm to 15Nm,12Nm to 20Nm, and 18Nm to 25Nm, respectively. Specifically, the vicinity of the center of the torque measurement section is relatively accurate, and the accuracy of both ends of the measurement section will be reduced, so that the output torque of the electric batch 100 to be calibrated is closer to the center of the measurement section, and the calibration accuracy is more accurate.
Specifically, in this embodiment, the driving module includes a motor and a screw transmission mechanism 12, where the screw transmission mechanism 12 is in driving connection with the motor and the lock rod 10, the motor drives the screw transmission mechanism 12 to move to make linear motion, and the screw transmission mechanism 12 drives the lock rod 10 to make linear motion, and accurately pushes the lock rod 10 into the housing 6 to contact with the abutting mechanism 7. The detection processing module comprises an amplifier, an analog-to-digital converter and a singlechip, wherein the output end of the torque sensor, the amplifier, the analog-to-digital converter and the singlechip are sequentially and electrically connected, the motor is a servo motor 11, the servo motor 11 comprises an optical encoder, and the output end of the optical encoder is electrically connected with the singlechip. The amplifier is used for amplifying the detection signal of the torque sensor, so that the subsequent data processing is convenient; the analog-to-digital converter converts the amplified detection signal from an analog signal to a data signal, so that subsequent operation and logic processing of data are facilitated, and the singlechip is used for processing a digital torque signal to obtain a result of whether the torque detection value and the torque of the electric batch 100 are qualified. If not, the operator may readjust the electric batch 100 to meet the torque requirements of the work task. The motor is a servo motor 11, and the servo motor 11 can accurately control the stroke of the lock rod 10. For the torque detection module with different detection ranges, the single chip microcomputer and the torque sensor are independently arranged in the embodiment, so that the detection independence and the repeated detection consistency are ensured, and the detection precision is improved.
In this embodiment, the optical encoder includes an optical position detector, an optical coupler, and an IO expansion board, where the optical position detector is connected to the optical coupler by a light guide, and the electrical signal output end of the optical coupler, the IO expansion board, and the single-chip microcomputer are electrically connected in sequence and are disposed in the same circuit board. The optical position information detector is used for converting the corner signal of the servo motor 11 into an optical signal, converting the optical signal into an electric signal through the photoelectric coupler, and converting the electric signal into an IO expansion board and transmitting the electric signal into the singlechip for signal processing so as to realize accurate positioning of the locking device 5. The torque detection modules with different measuring ranges are provided with photoelectric couplers and IO expansion plates, so that the servo motor 11 can be controlled in a differentiated mode, namely, the stroke control of the lock rod 10 is different corresponding to different measuring ranges, and the control is completed more accurately and adaptively. Meanwhile, the cost of the device can be saved by using a single-chip microcomputer for processing the detection data of the torque and detecting and controlling the servo motor 11.
In this embodiment, the single-chip microcomputer is an STM32F103 type single-chip microcomputer, and the torque sensor is an SOP118 type torque sensor. The plug interface is a hartening interface, and the hartening interface can give consideration to circuit wiring and optical path wiring, so that the arrangement complexity of the calibration device is simplified. The network module is WIFI, and the WIFI can be communicated to a wireless router arranged between the device and a workshop to realize network connection with an upper server, and meanwhile, the operation checking device can flexibly move in the workshop through the vehicle body 1. The code reader is a two-dimensional code scanner, two-dimensional code information on the identity card of an operator and two-dimensional code information on the electric batch 100 are read in an optical mode, the reading process is convenient and flexible, and corresponding information is printed on the identity card and the electric batch 100 and is convenient and easy to arrange.
In this embodiment, the calibration device further includes a first power module, a rechargeable battery, a charging module, and a charging interface, and the torque detection module further includes a second power module. The first power module can output 12V direct current and supply power to the servo motor 11, the computer and the torque detection module of the calibration device. The second power supply module can output 5V direct current to supply power to the singlechip. The charging module is used for charging the rechargeable battery. The charging interface is used for inputting alternating current commercial power into the charging module. The arrangement of the rechargeable battery facilitates the flexible movement of the calibration device.
The embodiment also includes an intelligent electric batch torque calibration system, which is a program module disposed in the computer, and includes:
the database is used for storing the information of the identity card of the operator, the information of the work task, the torque information of the power screw driver, the measuring range of the torque testing module and the historical torque checking information; the database is a database arranged in the upper server and is used for uploading and downloading data through the computer and the WIFI module.
The identity recognition module is used for scanning the identity card of the operator and downloading the information of the identity card of the operator from the database, if the operator is a proofreading person, the power screw driver recognition module is operated, and if the operator is a non-proofreading person, the locking state of the locking device is maintained. The identity recognition module processes the related data in the database and the information read by the code reader, and obtains a recognition result through comparison and judgment.
And the power screw driver identification module is used for scanning the power screw driver identification code, downloading the work task information and the power screw driver torque information from the database, operating the following torque test module identification information if the current power screw driver corresponds to the work task information, and maintaining the locking state of the locking device if the current power screw driver does not correspond to the work task information. The power screw driver identification module processes related data in the database and information read by the code reader, and an identification result is obtained through comparison and judgment.
And the torque test module identification module is used for identifying the current torque test module in place, downloading the measuring range of the torque test module from the database and operating the torque test module selection module. And the torque test module identification module is used for acquiring measurement range information stored in the singlechip to realize the identification of the torque test module.
The torque test module selection module is used for calculating whether the current power screw driver is in optimal proofreading fit with the torque test module, if so, changing the locking device into a release state, and if not, keeping the locking state of the locking device and prompting the optimal measurement range of the torque test module. The torque test module selection module is used for obtaining a proper torque test module suitable for current correction of the electric batch through calculation and logic processing according to the principle that the electric batch torque information is close to the center of the detection range.
The display module is used for displaying the torque measurement value and the test result, wherein the test result comprises, but is not limited to, whether the structure is the set torque or not. The display module is also used for displaying the judging results of the power screw driver identification module, the power screw driver identification module and the torque test module selection module. The display module is operated by the computer and finally displayed on the display screen through a set operation interface.
By applying the checking device and the checking system in the embodiment, the actual electric batch checking operation steps are as follows:
and step 1, opening a computer, starting a test program until a torque test interface appears, displaying a torque value as zero, and if the displayed torque value is not zero, pressing a button to return the torque value to zero.
And 4, after checking the electric batch, the operator can display whether the current torque test module needs to be replaced or not through the display screen, and if so, the replacement instruction is prompted.
And 5, selecting a proper buffer to be mounted on the torque test head according to the test requirement, and mounting a screwdriver nozzle of the screw driver tool for torque test on the buffer.
And 6, performing a checking operation by an operator, pressing a switch of the screwdriver to REV, reversely rotating, loosening a spring of a buffer to a bit, pressing the switch of the screwdriver to FOR, waiting FOR a displayed torque value to be zero, twisting the screwdriver until the screwdriver is automatically stopped, wherein the displayed torque value is the torque output by the screwdriver, and displaying and recording the torque value and a test result by a computer.
And 7, repeating the step 6 to finish three times of measurement, if all test results are qualified, judging whether the test results are qualified or not by the tool, if the test results are unqualified, inputting unqualified reasons on a keyboard, finishing registration, leaving the used calibration instrument, and closing an operation interface and a power supply.
Compared with the prior art, the embodiment has the following advantages:
1, modularization of torque detection can be realized, and by arranging a plurality of torque detection modules, the output torque of an electric batch to be checked is closer to the center of a measurement interval, so that the checking precision is more accurate, and the checking range of the torque is larger;
2, the plug and the replacement of the torque detection module can be realized, and meanwhile, the installation stability and the simple operation of the module are ensured;
3, locking of torque detection can be realized, and loss or damage to a tool and a tool correction device caused by misoperation of personnel is prevented;
and 4, real-time management of corresponding tasks and tools of the proofreading personnel can be realized, and supervision and monitoring of the assembly operation process are realized.
The foregoing detailed description of the invention has been presented only to illustrate one embodiment of the invention and is not intended to limit the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention.
Claims (9)
1. An intelligent power screw driver torque calibration system is applied to an intelligent power screw driver torque calibration device and is characterized in that,
the intelligent power screw driver torque calibration device comprises:
a frame;
the fixed seat is arranged on the rack;
the torque testing module comprises a shell and a testing module, wherein the testing module is arranged in the shell, and the shell is matched with the fixing seat so that the torque testing module is arranged on the fixing seat in a plug-in mode;
the computer is arranged on the rack and comprises a display screen, a code reader and a network module;
the plug interface comprises a male interface and a female interface, wherein one of the male interface and the female interface is arranged on the fixed seat and is electrically connected with the computer; the other of the male and female interfaces is arranged on the shell and is electrically connected with the test module;
the locking device is arranged on the rack and positioned below the fixed seat, and the testing module locking device is used for releasing/locking the detection of the torque testing module;
the number of the torque test modules is more than two, and each torque test module has a torque measurement range which is not completely overlapped;
the intelligent power screw driver torque calibration system comprises:
the database is used for storing the information of the identity card of the operator, the information of the work task, the torque information of the power screw driver, the measuring range of the torque testing module and the historical torque checking information;
the identity recognition module is used for scanning an operator identity card and downloading operator identity card information from the database, if the operator is a proofreading person, the power screw driver recognition module is operated, and if the operator is a non-proofreading person, the locking state of the locking device is maintained;
the power screw driver identification module is used for scanning the power screw driver identification code, downloading work task information and power screw driver torque information from the database, operating the following torque test module identification information if the current power screw driver corresponds to the work task information, and keeping the locking state of the locking device if the current power screw driver does not correspond to the work task information;
the torque test module identification module is used for identifying a currently-in-place torque test module, downloading a measurement range of the torque test module from the database, and operating the torque test module selection module;
the torque test module selection module is used for calculating whether the current power screw driver is in optimal proofreading fit with the torque test module, if so, changing the locking device into a release state, and if not, keeping the locking state of the locking device and prompting the optimal measurement range of the torque test module.
2. The intelligent power screw driver torque calibration system according to claim 1, wherein the test module comprises a torque sensor, a detection processing module, an abutting mechanism and a torque joint, wherein a detection end of the torque sensor is connected with the abutting mechanism, an output end of the torque sensor is electrically connected with the detection processing module, the other of the male and female interfaces is electrically connected with the detection processing module, and the abutting mechanism is elastically installed inside the shell and keeps a set distance from the torque joint; the locking device comprises a locking rod and a driving device, wherein the locking rod is in driving connection with the driving device, and the locking rod can be driven to move so as to enable the abutting mechanism to be in contact with the torsion joint.
3. The intelligent power screw torque calibration system according to claim 2, wherein said drive means comprises a motor and screw drive mechanism drivingly connecting said motor and lock rod.
4. The intelligent power screw driver torque calibration system according to claim 3, wherein the detection processing module comprises an amplifier, an analog-to-digital converter and a single chip microcomputer, and the output end of the torque sensor, the amplifier, the analog-to-digital converter and the single chip microcomputer are electrically connected in sequence; the motor is a servo motor, the servo motor comprises an optical encoder, and the output end of the optical encoder is electrically connected with the singlechip.
5. The intelligent power screw driver torque calibration system according to claim 4, wherein the optical encoder comprises an optical position detector, a photoelectric coupler and an IO expansion board, the optical position detector is connected with the photoelectric coupler through a light guide, and an electric signal output end of the photoelectric coupler, the IO expansion board and the singlechip are electrically connected in sequence.
6. The intelligent power screw driver torque calibration system according to claim 4, wherein the single chip microcomputer is an STM32F103 type single chip microcomputer, the torque sensor is an SOP118 type torque sensor, the plug interface is a HARTING interface, the network module is WIFI, and the code reader is a bar code scanner or a two-dimensional code scanner.
7. The intelligent power screw driver torque calibration system according to claim 1, wherein a plurality of cabinets are arranged on the frame, the cabinets are matched with the housing to place the torque test module, and a handle is arranged on the housing.
8. The intelligent power screw driver torque calibration system according to claim 1, wherein the frame comprises a vehicle body, four casters are arranged at the bottom of the vehicle body, locking bars are arranged at the side parts of the vehicle body, and a keyboard cabinet and a main machine cabinet are arranged on the vehicle body.
9. The intelligent powered screw torque calibration system of claim 1, further comprising a display module;
the display module is used for displaying the torque measured value and the test result;
the display module is also used for displaying the judging results of the power screw driver identification module, the power screw driver identification module and the torque test module selection module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201811146976.4A CN108972439B (en) | 2018-09-29 | 2018-09-29 | Intelligent power screw driver torque calibration device and system |
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| CN201811146976.4A CN108972439B (en) | 2018-09-29 | 2018-09-29 | Intelligent power screw driver torque calibration device and system |
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| CN108972439A CN108972439A (en) | 2018-12-11 |
| CN108972439B true CN108972439B (en) | 2023-06-30 |
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| CN110549290B (en) * | 2019-09-27 | 2022-02-15 | 山东中车同力达智能装备有限公司 | Intelligent digital display torque wrench circuit control system and control method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| DE102008020043A1 (en) * | 2008-04-21 | 2009-10-22 | Richard Abr. Herder Kg | Method for calibrating a torque wrench |
| CN202204736U (en) * | 2011-08-17 | 2012-04-25 | 国营东方仪器厂 | Verification instrument for torque driver |
| US9242356B2 (en) * | 2013-05-07 | 2016-01-26 | Snap-On Incorporated | Method of calibrating torque using peak hold measurement on an electronic torque wrench |
| CN205750466U (en) * | 2016-07-01 | 2016-11-30 | 龙铁纵横（北京）轨道交通科技股份有限公司 | Intelligence torque monitoring and verification platform |
| CN106996849B (en) * | 2017-06-08 | 2019-04-05 | 中国船舶重工集团公司第七0四研究所 | Standard torque spanner calibrating installation based on air bearings support |
| CN107677416B (en) * | 2017-10-30 | 2023-11-03 | 山东中车同力达智能装备有限公司 | Straight-shaft transmission type torque wrench verification platform |
| CN108444641A (en) * | 2018-05-11 | 2018-08-24 | 深圳天溯计量检测股份有限公司 | A kind of torsional forces value calibration workbench |
| CN209304453U (en) * | 2018-09-29 | 2019-08-27 | 广州市番禺致丰微电器有限公司 | A kind of intelligent power screwdriver torque verifying unit |
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