CN214560441U - Socket wrench intelligent adapter capable of monitoring torque and corner - Google Patents

Abstract

An intelligent adapter of a socket wrench capable of monitoring torque and a corner comprises an adapter body, wherein the upper end of the adapter body is a driving square hole, the lower end of the adapter body is an output square tenon, the middle part of the adapter body is an elastic body with a cylinder structure, an integrated strain type torque sensor is arranged on the elastic body with the cylinder structure, and a microelectronic detection circuit and a lithium battery are arranged on the outer side of the elastic body; an encoder type corner sensor is arranged at the lower part of the adapter body in a matching way with the rotating arm; and output signals of the torque sensor and the encoder type corner sensor are connected to the microelectronic detection circuit through a conditioning circuit. Adopt the utility model discloses can carry out real-time detection, demonstration, control and light instruction and voice prompt to manual executing torsion moment of torsion and angle of rotation value in-process to the operation data save and externally send are twisted round to executing, realize the overall process control and the operation quality of the operation of twisting round to executing traceing back, can improve the operation efficiency of twisting round of executing, extend the application scope of spanner.

Description

Socket wrench intelligent adapter capable of monitoring torque and corner

Technical Field

The utility model relates to a can monitor box spanner intelligent conversion joint of moment of torsion and corner adopts this intelligent conversion joint can realize manual execution and turn round the in-process to detection and control of moment of torsion and corner.

Background

Threaded couplings are widely used in a variety of mechanical structures and are currently the most common form of connection. The essence of threaded couplings is that two or more components are reliably coupled together by controlling the axial preload (clamping force) to a suitable range, and thus axial preload is an important indicator for assessing the reliability of a threaded coupling. Because the axial pretightening force is an internal force, the pretightening force cannot be directly controlled to assemble threaded connection at present, and only the parameters related to the pretightening force can be controlled: such as a torque method, a torque-angle method, a bolt yield point method, a bolt elongation method and the like, so as to achieve the aim of indirectly controlling the pretightening force. The torque method and the torque-angle method are the main methods in the current thread pair torque application process.

The torque method is a method for fastening thread pair which is most widely applied, and is characterized in that a static torque wrench such as a manual wrench or an electric wrench is adopted to uniformly torque the thread pair to a specified torque at a certain angular speed. The torque-angle method is a torque application control method in which a screw pair is first applied with a small initial torque (fitting torque) and then applied with a predetermined angle from this point. The method eliminates various influencing factors related to the friction coefficient to the maximum extent, can fully utilize the bearing capacity of the bolt to achieve the aim of accurately controlling the pretightening force, and has the defect that less torque applying tools can be adopted.

The electric tightening shaft used on the assembly line is the most advanced tightening tool at present, and has the advantages of high tightening precision, stable tightening quality, small influence of the related friction coefficient of the thread pair on the tightening quality and the like, and the defects are as follows: the price is very high, the control system is complex, and the portable use is not available. The common digital torque wrench is provided with a strain force transducer at a sensitive position of an acting point on a wrench rod to obtain torque in torque application, the torque is displayed on a liquid crystal screen in real time through electronic detection and digital operation, a torque peak value can be displayed and stored, the precision is high, but the torque in the torque application cannot be monitored on line, and the torque application angle cannot be detected and controlled. And because the applied torque thread pair and the torque detection are not on the same central axis, the force application position, the force application direction and the torque application stability are greatly influenced by human factors, and the torque application quality is not easy to ensure.

The Chinese patent 201610566046.9 discloses an intelligent torque sleeve, wherein a torque sensor, an analog-to-digital converter and a single chip microcomputer are arranged on the sleeve, so that the functions of automatic networking, wireless transmission and the like of the sleeve are effectively realized, and data can be digitally displayed and stored. The sleeve has the defects that only one nut/bolt can be used for twisting, the use cost is high, the functions of corner detection and control, light indication and sound prompt are omitted, and the function is single.

In the operation of twisting the screw thread pair, often use a box spanner crossover sub, the square tenon on the square tenon of the drive connection of its upper portion on the board pole of twisting the application, the square tenon of lower part links to each other with the square hole of standard telescopic for change square hole and square tenon size in order to adapt to the vice application of twisting of different specification screw threads, but at present there is not the box spanner intelligence crossover sub of monitoring moment of torsion and corner, the moment of torsion and the corner monitoring that are used for manual spanner. Therefore, by using a conversion tool, the screw pair is smoothly and once torqued into place at a certain angular speed, an accurate torque and rotation value is obtained, the torque and torque-rotation torque application process is realized, and the screw pair assembly is extremely convenient and necessary.

SUMMERY OF THE UTILITY MODEL

The utility model discloses it is not enough to prior art, provide a can monitor box spanner intelligent conversion joint of moment of torsion and corner to intelligent conversion joint form has realized manual real-time detection and the accurate control of turning round moment of torsion and corner in the operation process.

The utility model adopts the technical proposal that:

a strain torque sensor, a microelectronic detection circuit board and a lithium battery are arranged in a shell at the middle part of the intelligent conversion joint body, and a corner sensor is arranged at the upper part close to the output square tenon; the driving square hole at the upper part of the intelligent conversion joint body and the output square tenon at the lower part of the intelligent conversion joint body are positioned on the same central axis with the strain type torque sensor and the corner sensor.

The microelectronic detection circuit board comprises: the system comprises a microprocessor which is internally provided with an A/D converter, a data operation unit, a nonvolatile data memory, a liquid crystal display driver, a plurality of serial interfaces, a torque and corner signal conditioning circuit, a liquid crystal display, a charging and power management circuit, a wireless communication module, an indicator light and a driving circuit thereof, a loudspeaker and a driving circuit thereof and the like.

The intelligent adapter of the socket wrench capable of monitoring the torque and the rotation angle comprises an adapter body (10), wherein a driving square hole (11) is formed in the upper end of the adapter body (10), an output square tenon (12) is formed in the lower end of the adapter body, an elastic body (13) of a cylinder structure is arranged in the middle of the adapter body, a plurality of strain gauges (14) are uniformly arranged on the elastic body (13) of the cylinder structure in a direction forming an angle of 45 degrees with the central axis of the elastic body, the strain gauges form a measuring electric bridge to form a torque sensor (15) integrated with the adapter body (10), and an encoder type rotation angle sensor (40) is arranged on the lower portion of the adapter body (10) in a matched mode with a rotating arm (43); the inner sides of the two discs of the conversion joint body (10) are fixed with a microelectronic detection circuit board (20) and a lithium battery (70) through a fixing frame (16). The driving square hole (11), the output square tenon (12), the torque sensor (15) and the corner sensor (40) are positioned on the same central axis. Through two discs of crossover sub body, rather than the matching and be equipped with nonmetal sealed shell (60, 62), the position that corresponds with liquid crystal display (24) of microelectronic detection circuitry on the nonmetal sealed shell is provided with transparent display window (61), and the position that corresponds with loudspeaker is provided with netted sound transmission hole.

Further, encoder formula corner sensor (40) set up in the top of crossover sub body (10) lower part output side tenon (12), including code wheel (41) and code reading ware (42), code reading ware (42) and code wheel (41) cooperation set up in the box body of crossover sub body (10) lower part, and code reading ware (42) are fixed in the inner wall of box body, and the box body lower extreme is uncovered to be equipped with closing cap (48). The coded disc (41) is fixed with the rotating arm (43) and can rotate in 360 degrees along the central axis of the intelligent adapter body (10), the rotating arm (43) is connected with the upper supporting arm (44) through a pin shaft (49), the upper supporting arm (44) is fixedly connected with the middle supporting arm (45), the middle supporting arm (45) is fixedly connected with the lower supporting arm (47), and the lower supporting arm (47) is externally sleeved with a soft rubber outer sleeve (46); well support arm (45) are insulating flexible material, and lower support arm (47) are strong magnet material, and the purpose is reliably fixed with lower support arm and metal support piece, and the corner value of gathering through encoder formula corner sensor (40) is accurate reliable.

The microelectronic detection circuit (20) comprises a microprocessor (21), a liquid crystal display (24), a wireless communication module (28), a torque indicator lamp (33), a corner indicator lamp (34), an angular rate indicator lamp (35), an indicator lamp driving circuit (22), a loudspeaker (36), a loudspeaker driving module (23) and a charging and power management circuit (26); a voltage signal output by the torque sensor (15) is accessed to the microprocessor (21) through the torque signal conditioning circuit (27), and a pulse signal output by the corner sensor (40) is accessed to the microprocessor (21) through the corner signal conditioning circuit (25); the microprocessor (21) drives the torque indicator lamp (33), the corner indicator lamp (34) and the angular rate indicator lamp (35) to perform operation indication through the indicator lamp driving circuit (22) through an I/0 port, and the microprocessor (21) also drives the loudspeaker (36) through the loudspeaker driving module (23) through the I/0 port to perform voice prompt of an operation process.

Furthermore, the torque indicator lamp (33), the corner indicator lamp (34) and the angular rate indicator lamp (35) are optical fiber lamp rings embedded on the upper side and the lower side of the intelligent adapter body (10), the lamp rings are driven by an indicator lamp driving circuit (22), and the microprocessor (21) can control the intelligent adapter to emit annular light rays with different colors according to torque, a corner and an angular rate value.

The liquid crystal driver in the microprocessor (21) is connected with the liquid crystal display (24) and is used for displaying the torque value and the rotation angle value in the positive and negative directions, keeping and displaying the peak value, and also displaying the torque control parameters such as the initial value of the torque, the qualified value of the rotation angle and the range thereof, the residual electric quantity information of the battery, the wireless connection state and the like.

Furthermore, the loudspeaker driving module (23) comprises a voice chip and an amplifying circuit, wherein multiple sections of related voices are prerecorded, and in the torsion applying process, the microprocessor (21) collects and calculates torque, rotation angle and angular velocity values in real time, dynamically compares the torque, rotation angle and angular velocity values with preset torsion control parameters and judges logically to perform corresponding voice prompt.

Further, microelectronics detection circuitry (20) still include wireless communication module (28), are connected with microprocessor (21)'s serial port, wireless communication module (28) are a section based on the thing networking wireless transceiver of loRa spread spectrum technique, and with host computer (50) wireless communication, make this intelligent crossover sub merge into monitoring network as a node of thing networking, carry out mutual biography of information such as control parameter and operating condition, operation torque data such as relevant moment of torsion, corner. The upper computer (50) is a portable intelligent terminal provided with corresponding APP software, or an industrial control machine which is arranged on a torque application operation site and is positioned in a monitoring network.

The charging and power management circuit (26) consists of a lithium battery coulometer, a plurality of controllable low dropout regulators (LDOs) or a special power manager and peripheral circuits thereof, and I of the microprocessor (21)²The C interface is connected with the I/O interface. The electricity meter monitors the voltage, the current and the temperature of the lithium battery in real time in a charging and discharging state, and accurately calculates the residual electricity quantity of the lithium battery, and the residual electricity quantity information is displayed by a liquid crystal display (24); the output power supply of the lithium battery (70) is connected with the input end of the controllable low dropout regulator or the power supply manager, and the output ends are respectively connected withThe power consumption of the torque sensor (15), the rotation angle sensor (40), the wireless communication module (28) and the backlight drive of the liquid crystal display (24) are increased.

Microprocessor (21) real-time detection this intelligent crossover sub's behavior, during the inoperative in a certain time, microprocessor can close torque sensor (15) that power consumption is more through the IO mouth respectively, corner sensor (40), wireless communication module (28), parts such as LCD's (24) backlight driver, microprocessor (21) enter the dormancy state of extremely low power consumption in order to prolong the battery live time afterwards. The microprocessor (21) entering the sleep state can be awakened by applying a certain torque or by the upper computer.

The utility model has the advantages that:

1. the utility model discloses can monitor the socket spanner intelligent conversion joint of moment of torsion and corner, through set up drive square hole, output square tenon, torque sensor and corner sensor on intelligent conversion joint body, and be in on the same center axis, reduced operating personnel's human factor effectively and detected and the influence of control accuracy to the moment of torsion.

2. Related torque control parameters are flexibly preset according to a specific fastening torque application process and an operation standard, torque, a rotation angle and a torque application angle rate are detected and calculated in real time, dynamic comparison and logic judgment are carried out on the torque, the rotation angle and the torque application angle rate, an operator is guided to accurately control the torque and the rotation angle in the torque application process through a digital display method, a light indication method and a voice prompt method, the defects of thread slipping, thread disordering and the like of a thread pair and the inappropriate place of torque application operation can be automatically detected, and the fastening operation qualification rate and the operation efficiency of the thread pair are improved.

3. By adopting the LORA strong anti-interference wireless communication technology, the intelligent adapter is integrated into a monitoring network as a node of the Internet of things, flexible presetting of relevant torque control parameters and reliable transmission of information such as working state and working torque data are carried out under the strong electromagnetic interference environment of a working site, the whole process monitoring of the torque application operation of the thread pair and the traceability of working data are realized, and the new requirements of the Internet of things and a big data era on working tools are met.

Drawings

FIG. 1 is a schematic diagram of an intelligent adapter construction;

FIG. 2 is a cross-sectional view of a smart adapter construction;

FIG. 3 is a schematic block diagram of a microelectronic detection circuit;

FIG. 4 is a control flow diagram for various operating modes;

fig. 5 is a schematic diagram of the use state of the intelligent adapter.

Detailed Description

The technical solution of the present invention is further described in detail below by means of specific embodiments and with reference to the accompanying drawings.

Example 1

As shown in fig. 1 and 2, the utility model discloses but socket spanner intelligence crossover sub of control moment of torsion and corner, including crossover sub body 10, crossover sub body 10 upper end is drive square hole 11, and the lower extreme is output square tenon 12, and the middle part is elastomer 13 of cylinder structure, in the most sensitive position of moment of torsion of elastomer 13 of cylinder structure, and form 45 degrees angle directions with its the central axis and evenly be provided with foil gage 14, these foil gages constitute the measurement electric bridge and constitute the strain type torque sensor 15 with crossover sub body 10 integration; an encoder type rotation angle sensor 40 is arranged at the lower part of the adapter body 10 in a matching way with the rotating arm 43; and, a microelectronic detection circuit board 20 and a lithium battery 70 are fixed on the inner sides of the two disks of the intelligent adapter body 10 through a fixing frame 16, and the output signals of the torque sensor 15 and the encoder type corner sensor 40 are connected with the microelectronic detection circuit 20 to realize the detection of torque and corner signals.

Through two upper and lower discs of intelligent crossover sub body 10, rather than matcing and being equipped with preceding shell 60 of nonmetal seal, back shell 62, the nonmetal seal shell is provided with transparent display window 61 with microelectronic detection circuitry's LCD 24 corresponding position, corresponds the position with loudspeaker and is provided with netted sound transmission hole.

Example 2

As shown in fig. 2, the intelligent adapter of a socket wrench capable of monitoring torque and rotation angle of the present embodiment is different from embodiment 1 in that: encoder formula angle sensor 40 sets up in the top of crossover sub body 10 lower part output square tenon 12, including code wheel 41 and code reader 42, code reader 42 sets up in the box body of crossover sub body 10 lower part with the cooperation of code wheel 41, and code reader 42 is fixed in the inner wall of box body, and the box body lower extreme is uncovered to be equipped with closing cap 48. The coded disc 41 is fixedly connected with a rotating arm 43 and can rotate in 360 degrees along the central axis of the adapter body 10, the rotating arm 43 is connected with an upper supporting arm 44 through a pin shaft 49, the upper supporting arm 44 is fixedly connected with a middle supporting arm 45, the middle supporting arm 45 is fixedly connected with a lower supporting arm 47, and a soft rubber outer sleeve 46 is sleeved outside the lower supporting arm 47; the middle supporting arm 45 is made of insulating flexible material, and the lower supporting arm 47 is made of strong magnet material. The purpose is to realize that the lower supporting arm and the external metal supporting piece are reliably fixed, so that the rotation angle value collected by the encoder type rotation angle sensor 40 is accurate and reliable. During torque application operation, the code disc 41 is fixed, and the code reader 42 synchronously rotates along with the intelligent adapter body.

Example 3

The difference between the socket wrench intelligent adapter capable of monitoring torque and rotation angle of the present embodiment and the embodiments 1 and 2 is that: as shown in fig. 3, the microelectronic detection circuit 20 includes a microprocessor 21, a liquid crystal display 24, a wireless communication module 28, and a charging and power management circuit 26; the voltage signal output by the torque sensor 15 is connected to the microprocessor 21 through the torque signal conditioning circuit 27; the pulse signal output by the encoder type corner sensor 40 is connected to the microprocessor 21 through the corner signal conditioning circuit 25; the microprocessor 21 drives the torque indicator lamp 33, the corner indicator lamp 34 and the angular rate indicator lamp 35 to perform operation indication through the indicator lamp driving circuit 22 via an I/0 port respectively, and the microprocessor 21 also drives the horn 36 to perform voice prompt of an operation process through the horn driving module 23 via the I/0 port; the liquid crystal display 24 is connected to a liquid crystal driver inside the microprocessor 21.

The micro-processor 21 of the micro-electronic detection circuit comprises an A/D converter, a data operation unit, a nonvolatile data memory, a liquid crystal driver, a plurality of serial interfaces and a certain number of I/O ports. The nonvolatile data memory in the microprocessor 21 stores an operation program and a plurality of sets of torque application operation result data, and also stores a torque control parameter such as a multi-point calibration data table of torque and rotation angle, a torque initial value, a torque qualified value, a rotation angle qualified value, an angular rate value and a range thereof.

The voltage signal output by the torque sensor 15 is accessed to an A/D converter in the microprocessor 21 through a torque signal conditioning circuit 27 for A/D conversion and digital filtering, data operation is carried out by combining a multipoint calibration data table to obtain real-time torque data, the pulse signal output by the corner sensor 40 is accessed to an external interrupt interface in the microprocessor 21 through a corner signal conditioning circuit 25 for rotation direction judgment and corner and angular rate calculation to obtain real-time corner and angular rate data.

During working, the microprocessor 21 sends the real-time torque and corner data to the liquid crystal display for display, and simultaneously compares and logically operates the real-time torque and corner data with parameters such as a torque initial value, a torque qualified value, a corner speed value, respective control range values and the like stored in the nonvolatile memory together with the corner speed data, on one hand, the operation result respectively drives the torque indicator lamp 33, the corner indicator lamp 34 and the corner speed indicator lamp 35 through the I/0 port through the indicator lamp driving circuit 22 for operation indication, on the other hand, the operation result carries out multi-section voice intelligent combination through the horn driving module 23, and drives the horn 36 to carry out corresponding voice prompt of the torque control operation.

The torque indicator light 33, the rotation angle indicator light 34 and the angular rate indicator light 35 are optical fiber lamp rings embedded on the upper and lower sides of the adapter body 10, and are driven by the indicator light driving circuit 22 to emit annular light rays with different colors.

The data displayable by the liquid crystal display comprises: the real-time torque value and the real-time rotation angle value of the positive direction and the negative direction with the peak value holding function, the torque initial value, the torque qualified value, the rotation angle qualified value, the angular speed value, the range thereof and other related torque control parameters, the battery residual capacity information and the wireless connection state.

The microprocessor 21 collects the torque, the rotation angle and the angular speed value in real time, intelligently judges the end of one torque application process according to the following conditions, and comprises the following steps of:

1) when the rotation angle value stops increasing, the torque application process is stopped, and the process is automatically judged to be the end of one torque application operation process;

2) the angular speed value exceeds the set range, which indicates that the torque deviation is too large due to the fact that the force of an operator is too strong or the torque is suddenly slow and unstable when the operator applies the torque, and the torque is automatically judged to be the end of one torque application operation process.

The UART serial interface of the microprocessor 21 is in communication connection with a wireless communication module 28, the module adopts an Internet of things wireless transceiver Semtech-SX1268 based on LoRa spread spectrum technology, and the anti-interference performance and the communication distance of the module far exceed those of the existing products in FSK and GFSK modulation modes. In operation, the control button parameters and the calibration data table can be read, edited, stored and downloaded by a user on the upper computer 50 through the wireless communication module 28, after one-time button application operation is automatically judged to be finished, the microprocessor 21 stores the button application operation result data into the nonvolatile memory on one hand, and automatically uploads the button application operation result data to the upper computer for storage on the other hand, the upper computer monitors the whole process of the button application operation, the operation result data is subjected to statistical analysis, and the operation data can be traced.

The upper computer 50 is a portable intelligent terminal provided with corresponding APP software, or an industrial control computer which is arranged on a torque application operation site and is positioned in a monitoring network.

Example 4

The socket wrench intelligent adapter capable of monitoring torque and rotation angle of the embodiment is different from the socket wrench intelligent adapter of the embodiment 1 or 2 in that: the driving square hole 11, the output square tenon 12, the torque sensor 15 and the corner sensor 40 are positioned on the same central axis, so that the influence of human factors of operators on torque detection and control precision can be effectively reduced.

Example 5

The socket wrench intelligent adapter capable of monitoring torque and rotation angle of the embodiment further discloses the charging and power management circuit 26, which comprises a lithium battery electricity meter CW2018, a plurality of controllable low dropout regulators (LDO) R1114 or a dedicated power manager CW3603 and peripheral circuits thereof, and an I of the microprocessor 21²The C interface is connected with the I/O interface. The electricity meter monitors the voltage, the current and the temperature of the lithium battery in a charging and discharging state in real time and accurately calculates the lithium batteryThe remaining capacity of the cell, the remaining capacity information is displayed by the liquid crystal display 24; the output power of the lithium battery 70 is connected with the input end of the controllable low dropout regulator or the power manager, and the output end is respectively connected with the microprocessor 21 with more power consumption, the torque sensor 15, the corner sensor 40, the wireless communication module 28, the backlight drive of the liquid crystal display 24 and the like.

The microprocessor 21 detects the working state of the adapter in real time, when the adapter does not work within a certain time (which can be set by an upper computer), the microprocessor 21 can respectively close the torque sensor 15, the corner sensor 40, the wireless communication module 28, the backlight driver of the liquid crystal display 24 and the like which consume more power through the I/O port, and then the microprocessor 21 enters a dormant state with extremely low power consumption to prolong the service time of the battery. The microprocessor 21 entering the sleep state may be awakened by applying a certain torque or by the upper computer.

FIG. 4 is a control flow chart of the intelligent adapter for various working modes according to the present invention; fig. 5 is a schematic diagram showing the use state of the intelligent adapter, in which the driving square tenon of the ordinary manual torque wrench 80 is vertically inserted into the driving square hole 11 of the intelligent adapter 1, the output square tenon of the intelligent adapter 1 is vertically inserted into the square hole of the socket wrench head 81, the socket wrench head 81 is used for twisting the nut 82 on the workpiece 83, and the supporting arm is fixed on the protrusion 84 on the workpiece.

Referring to fig. 4, after a certain torque is applied or an upper computer sends a wake-up command to wake up the intelligent adapter, the network environment where the intelligent adapter is located is automatically monitored, when a network exists, the upper computer 50 downloads torque control parameters such as an initial torque value, a torque qualified value, a corner qualified value, an angular rate value, respective control range values and the like to a nonvolatile data memory in the microprocessor for storage, and the following four torque control modes are respectively entered according to the command of the upper computer:

1) when no network exists, a common torque and corner detection control mode is entered by default, torque and corner detection and real-time display are carried out only according to a stored calibration parameter table, when the ending condition is met, the torque application is finished, the data of the torque application operation is automatically stored in a nonvolatile memory of a microprocessor, and data uploading is not carried out;

2) when a torque detection control mode of torque application process operation by a torque method in a network exists, the intelligent adapter is in wireless communication with an upper computer, when a torque application operation instruction of the upper computer is received, the intelligent adapter enters a torque application operation mode only controlling torque, a microprocessor collects, calculates and displays a real-time torque value and a rotation angle value, calculates an angular speed value, dynamically compares and logically judges the real-time torque value and the rotation angle value with a preset angular speed and a preset torque qualified value, performs light indication and voice prompt of torque and angular speed, and when a torque application operation finishing condition is met, the torque application is finished, and a torque peak value or a torque peak value and a torque application unqualified reason are stored and uploaded;

3) when receiving the operation instruction of the upper computer according to the torque-angle method, the intelligent adapter is in wireless communication with the upper computer, enters a torque application operation mode for simultaneously detecting and controlling a torque value and an angle value, the microprocessor collects, calculates and displays a real-time torque value and an angle value, calculates an angle speed value, dynamically compares the angle speed value with a preset angle speed range and a preset torque initial value, clears the angle value and starts to recalculate and display the angle value when the torque initial value is reached, simultaneously converts the real-time torque value, the real-time torque value and the real-time angle value into a real-time torque value and an angle value, dynamically compares the real-time torque value and the real-time angle value with the preset angle speed range, the preset torque qualified value and the preset angle qualified value, and dynamically compares the real-time torque value and the preset angle qualified value with the preset angle speed range, the preset torque qualified value and the preset angle qualified value, logically judges, carries out light indication and voice prompt of the torque and the angle, and the torque application is finished when the torque application condition is met, the torque peak value is stored and uploaded, The peak value of the corner or the peak value of the corner and the unqualified torque application reason;

4) the intelligent adapter is in a torque and corner calibration mode when a network exists, the intelligent adapter and an upper computer are in point-to-point wireless communication, when an upper computer calibration instruction is received, the intelligent adapter enters the mode, the torque and the corner are respectively subjected to multi-point calibration in a measuring range through a standard device, a calibration data table is formed and stored in a nonvolatile memory of an intelligent adapter microprocessor, and meanwhile the calibration data table is sent to the upper computer for storage.

Claims (8)

1. The utility model provides a but socket spanner intelligence crossover sub of control moment of torsion and corner, includes crossover sub body (10), crossover sub body (10) upper end be drive square hole (11), the lower extreme is output square tenon (12), the intermediate part is elastomer (13) of cylinder structure, its characterized in that: strain gauges (14) forming a measuring bridge are uniformly arranged on the elastic body (13) of the cylindrical structure in a direction forming an angle of 45 degrees with the central axis of the elastic body, the measuring bridge formed by the strain gauges (14) forms a torque sensor (15) integrated with the conversion joint body (10), and an encoder type rotation angle sensor (40) is arranged at the lower part of the conversion joint body (10) in a matching manner with a rotating arm (43); and a microelectronic detection circuit (20) and a lithium battery (70) are fixed on the conversion joint body (10) through a fixing frame (16), and output signals of the torque sensor (15) and the encoder type rotation angle sensor (40) are connected with the microelectronic detection circuit (20) so as to realize the detection of torque and rotation angle signals.

2. The torque and angle monitorable intelligent adapter for socket wrenches according to claim 1 and wherein: the encoder type corner sensor (40) is arranged above an output square tenon (12) at the lower part of the conversion joint body (10) and comprises a code disc (41) and a code reader (42), the code reader (42) is matched with the code disc (41), the code reader (42) is fixedly connected with the conversion joint body (10), the code disc (41) is fixedly connected with a rotating arm (43) and can rotate along the central axis of the conversion joint body (10), the rotating arm (43) is connected with an upper supporting arm (44) through a pin shaft (49), the upper supporting arm (44) is fixedly connected with a middle supporting arm (45), and the middle supporting arm (45) is fixedly connected with a lower supporting arm (47); the outer sleeve of the lower supporting arm (47) is provided with a soft rubber outer sleeve (46), the middle supporting arm (45) is made of insulating flexible materials, and the lower supporting arm (47) is made of strong magnets.

3. The torque and angle monitorable socket wrench intelligent adapter according to claim 1 or claim 2 and wherein: the driving square hole (11), the output square tenon (12), the torque sensor (15) and the corner sensor (40) are positioned on the same central axis.

4. The torque and angle monitorable intelligent adapter for socket wrenches according to claim 3 and wherein: the microelectronic detection circuit (20) comprises a microprocessor (21), a liquid crystal display (24), a wireless communication module (28) and a charging and power management circuit (26); a voltage signal output by the torque sensor (15) is connected to the microprocessor (21) through a torque signal conditioning circuit (27); pulse signals output by the encoder type corner sensor (40) are connected to the microprocessor (21) through a corner signal conditioning circuit (25); the microprocessor (21) drives the torque indicator lamp (33), the corner indicator lamp (34) and the angular rate indicator lamp (35) to perform operation indication through an I/0 port and an indicator lamp driving circuit (22), and the microprocessor (21) also drives the loudspeaker (36) to perform voice prompt of an operation process through an I/0 port and a loudspeaker driving module (23); the liquid crystal display (24) is connected with a liquid crystal driver inside the microprocessor (21).

5. The torque and angle monitorable socket wrench intelligent adapter according to claim 4 and wherein: the torque indicator lamp (33), the corner indicator lamp (34) and the angular rate indicator lamp (35) are optical fiber lamp rings embedded on the upper side and the lower side of the adapter body (10), and the optical fiber lamp rings are driven by the indicator lamp driving circuit (22) to emit annular light rays with different colors.

6. The torque and angle monitorable socket wrench intelligent adapter according to claim 4 and wherein: i of the charging and power management circuit (26) and the microprocessor (21)²The interface C is connected with the I/O port and consists of a lithium battery electricity meter, a plurality of controllable low-dropout voltage regulators or a power manager and peripheral circuits thereof; the output power supply of the lithium battery (70) is connected with the input end of the controllable low-dropout regulator, and the output end of the controllable low-dropout regulator is respectively connected with the microprocessor (21), the torque sensor (15), the corner sensor (40) and the backlight driver of the liquid crystal display (24).

7. The torque and angle monitorable socket wrench intelligent adapter according to claim 4 and wherein: the microelectronic detection circuit further comprises a wireless communication module (28), wherein the wireless communication module (28) adopts an Internet of things wireless transceiver based on a LoRa spread spectrum technology, or adopts a WiFi or Bluetooth wireless communication mode.

8. The torque and angle monitorable socket wrench intelligent adapter according to claim 1, 2, 4, 5, 6 or 7 and wherein: the device is characterized by further comprising a front shell (60) and a rear shell (62), wherein the front shell and the rear shell are made of non-metal materials, so that reliable communication with an upper computer (50) is facilitated; the front shell (60) is also provided with a transparent display window (61) and a mesh sound transmission hole.

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