CN115723086A

CN115723086A - Wrench device and control method thereof

Info

Publication number: CN115723086A
Application number: CN202111007455.2A
Authority: CN
Inventors: 范光明; 全伟; 黄桂宏
Original assignee: Tianze Electric Power Tianjin Co ltd
Current assignee: Tianze Electric Power Tianjin Co ltd
Priority date: 2021-08-30
Filing date: 2021-08-30
Publication date: 2023-03-03
Also published as: WO2023029946A1

Abstract

The invention discloses a wrench device and a control method thereof, the wrench device comprises: at least two wrenches, each wrench is provided with a control mechanism; the sliding assembly is assembled with all the wrenches and slides synchronously along with the sliding assembly; and the control mechanisms of all the wrenches are in communication connection through the connection mechanism, so that when the connection mechanism is switched on, the control mechanism of one wrench can control all the wrenches. This scheme of adoption has realized the on-line control of two or more spanners, makes the operation personnel one-time operation just can a plurality of spanner operations of simultaneous control, has ensured the uniformity of a plurality of spanner torque output simultaneously, moreover, just can drive the spanner through promoting sliding assembly and reach next operation position, does not need the manpower transport, has consequently reduced operation personnel's intensity of labour to do benefit to and reduce the error rate. In addition, the scheme also realizes the functions of automatic stop, automatic calculation, torque detection and display, automatic error reporting and the like, so that the wrench device is more intelligent.

Description

Wrench device and control method thereof

Technical Field

The invention relates to the technical field of wrenches, in particular to a wrench device and a control method of the wrench device.

Background

There are two main types of impact wrenches on the market: one type is a straight-twist type wrench, which can easily install a torque sensor to meet the requirement of accurate torque because of a reverse force arm, but the straight-twist type wrench has larger volume and heavy weight; the other type is an impact wrench which has small volume, light weight and capability of providing larger torque, and is widely applied in the market at present.

In one work scenario, the torque applied to the nut needs to be kept consistent for safety purposes, and the work load is large, which results in high labor intensity and is prone to work errors. For example, in the maintenance and repair process of railways, the track fastener is disassembled and replaced, a large number of nuts are required to be assembled, disassembled and replaced, and the torque applied to the nuts is kept consistent for guaranteeing the driving safety.

In view of the above, how to reduce labor intensity and more advantageously ensure that the torque applied to the nut is kept consistent is a technical problem to be solved by those skilled in the art.

Disclosure of Invention

In order to solve the above technical problem, the present invention provides a wrench device, including:

at least two wrenches, each of which is provided with a control mechanism;

the sliding assembly is assembled with all the wrenches and synchronously slides along with the sliding assembly;

and the control mechanisms of all the wrenches are in communication connection through the connection mechanism, so that when the connection mechanism is switched on, one control mechanism of one wrench can control all the wrenches.

In one embodiment, each of the wrenches is provided with: an input part for a user to input an instruction; the control mechanism is in communication with the input member such that the control mechanism can control the wrench in accordance with instructions input by a user.

In one embodiment, each of the wrenches is provided with: the device comprises a motor, an output mechanism driven by the motor and a collecting mechanism used for collecting the current operation data of the motor in real time; the control mechanism is in communication connection with the acquisition mechanism, so that the control mechanism can calculate the current output torque of the output mechanism and/or judge the current operation state of the motor and/or control the motor to start and stop according to the current operation data of the motor and/or an instruction input by a user.

In one embodiment, each of the wrenches is provided with: an impact block driven by the motor and configured to impact the output mechanism; the acquisition mechanism comprises a current sensor and a rotating speed sensor.

In one embodiment, each of the wrenches is provided with: a display; the control mechanism is in communication connection with the display, so that the control mechanism can control the display to be opened and closed according to instructions input by a user and/or control the display to display the calculated current output torque of the output mechanism and/or the current operation information of the motor and/or instructions input by the user and/or warning information.

In one embodiment, each wrench is provided with a torque detection mechanism for detecting the current output torque of the output mechanism; the control mechanism is in communication connection with the torque detection mechanism, so that the control mechanism can control the display to display the detected current output torque of the output mechanism.

In one embodiment, each of the wrenches is provided with: an illuminating lamp; the control mechanism is in communication connection with the illuminating lamp, so that the control mechanism can control the illuminating lamp to be turned on or off and/or control the illuminating lamp to emit warning light according to an instruction input by a user.

In one embodiment, the control mechanism comprises: and the power-off storage component is used for storing the instruction input by the current user when the power is off.

In one embodiment, the control mechanism includes a counter for recording the number of times a single run length of the motor reaches a preset length.

In one embodiment, the slide assembly comprises: the sliding table, an elastic arm connected to the sliding table and a connecting seat connected to the elastic arm; the wrench is arranged on the connecting seat, and the elastic arm can drive the connecting seat and the wrench to move to a target position and keep the target position by utilizing the elasticity of the elastic arm.

In one embodiment, the wrench can include a fixed seat fixed to the elastic arm and a sliding seat capable of sliding in a direction perpendicular to a sliding direction of the sliding table in the connecting seat, the wrench is connected to the sliding seat, and the fixed seat is provided with scales for indicating a position of the sliding seat and a sliding distance relative to the fixed seat.

In one embodiment, the bottom of the sliding table is provided with a roller capable of being matched with a rail, a part to be screwed is a part of the rail, at least one wrench is located on one side of the rail, and at least one wrench is located on the other side of the rail.

In addition, the present invention provides a control method of a wrench device, the wrench device being any one of the wrench devices described above, the control method including: the on-line mechanism is switched off, and each wrench is independently controlled by a respective control mechanism; or the connecting mechanism is switched on, and the control mechanism of one wrench controls all the wrenches.

In one embodiment, the control method includes: controlling the wrench according to an instruction input by a user; the user-entered instructions include: the instruction of indicating the motor of the spanner to rotate forward or reversely, the instruction of indicating the rotating speed gear of the motor of the spanner, and the instruction of indicating the motor of the spanner to start.

In one embodiment, the control method includes: and calculating the current output torque of an output mechanism of the wrench according to the collected current operation data of the motor and/or an instruction input by a user, and/or judging the current operation state of the motor and/or controlling the start and stop of the motor.

In one embodiment, the "collected current operating data of the motor" includes: current and rotational speed;

the method for calculating the current output torque of the output mechanism of the wrench comprises the following steps: judging the initial moment of the impact block of the wrench impacting the output mechanism according to the current change; calculating the current output torque of the output mechanism once every preset time according to a preset formula from the starting moment until the control mechanism controls the motor to stop; the preset formula is as follows: the current output torque of the output mechanism = the current motor rotation speed, the current impact duration, the gear coefficient, the constant and the power supply voltage feedback coefficient; the gear coefficients corresponding to different rotating speed gears are different.

In one embodiment, the method of "controlling the start and stop of the motor" is: controlling the motor to be started according to the 'instruction indicating the rotating speed gear of the motor' and/or the 'instruction indicating the rotating speed gear of the motor' input by a user; and when the running time of the motor reaches the preset time, controlling the motor to stop.

In one embodiment, the control method includes: controlling a display of the wrench to open and close according to an instruction input by a user, and/or controlling the display to display the calculated current output torque of the output mechanism, and/or controlling the display to display the current running information of the motor, and/or controlling the display to display the instruction input by the user, and/or controlling the display to display warning information.

In one embodiment, the method of controlling the display to display the warning message is: and when the running time of the motor is shorter than the preset time, controlling the display to display warning information.

In one embodiment, the current output torque of the output mechanism is detected, and the display is controlled to display the detected current output torque of the output mechanism.

In one embodiment, the control method includes: and controlling the illuminating lamp to be switched on and off and/or controlling the illuminating lamp to emit warning light according to an instruction input by a user.

In one embodiment, the method of "controlling the illumination lamp to emit the warning light" includes: and when the running time of the motor is shorter than the preset time, controlling the illuminating lamp to emit warning light.

In one embodiment, the control method includes: and recording the times of the motor reaching the preset time length in the single-time running, and controlling a display of the wrench to display the recorded times. .

In one embodiment, the control method includes: and when the power is off, the instruction input by the current user is saved until the user re-inputs the instruction.

The wrench device and the control method of the wrench device provided by the invention realize online control of two or more wrenches, so that an operator can control a plurality of wrenches to operate simultaneously by one-time operation, and the wrench can be driven to reach the next operation position by pushing the sliding component without manual transportation, thereby reducing the labor intensity of the operator and being beneficial to reducing the error rate. Meanwhile, online control also ensures the consistency of torque output of a plurality of wrenches.

Drawings

FIG. 1 is a schematic view of one embodiment of a wrench device according to the present invention;

FIG. 2 is a schematic view of the connecting socket of FIG. 1;

FIG. 3 is a schematic view of the wrench of FIG. 1;

FIG. 4 is a cross-sectional view of the impact mechanism of FIG. 3;

FIG. 5 is a cross-sectional view of the damping mechanism of FIG. 3;

FIG. 6 is a cross-sectional view of the first elastomeric damping member and the attachment portion associated therewith of FIG. 5;

fig. 7 is a cross-sectional view of the first grip of fig. 3.

Description of reference numerals:

01 track;

100 wrenches;

10 impact mechanism, 101 motor, 102 speed reducing part, 103 driving shaft, 104 elastic part, 105 impact block, 105a first protrusion, 106 shell, 106a groove and 107 guide rail pair;

20 output mechanism, 201 output shaft, 201a second projection;

30 damping mechanism, 301 connecting piece, 301a first connecting part, 301b second connecting part, 301c third connecting part, 302 first elastic damping part, 303 fastener, 304 second elastic damping part.

The device comprises a 40 operating mechanism, a 401 operating mechanism body, a 401a first holding piece, a 401B second holding piece, a B anti-skidding structure, a 401c protection key, a 401d starting key, a 402 support, a 402a carrying platform, a 402B fulcrum and a 402c supporting arm;

50 a control mechanism;

the device comprises a 60 sliding assembly, a 601 sliding table, a 601a roller, a 602 elastic arm, a 603 connecting seat, a 603a fixing seat, a 603b positioning shaft and a 603c sliding seat.

Detailed Description

In order to make those skilled in the art better understand the technical solution of the present invention, the technical solution of the present invention is further described in detail below with reference to the accompanying drawings and the detailed description. The radial direction described herein refers to the radial direction of the drive shaft 103, and the axial direction refers to the axial direction of the drive shaft 103 and the circumferential direction refers to the circumferential direction of the drive shaft 103.

In this embodiment, as shown in fig. 1, the wrench device has two wrenches 100, but in other embodiments, more wrenches may be provided. And a sliding assembly 60 is further provided, and all the wrenches are assembled on the sliding assembly and synchronously slide along with the sliding assembly. Each wrench is provided with a control mechanism 50. The wrench is also provided with a connecting mechanism, and the control mechanisms of all the wrenches are in communication connection through the connecting mechanism. Specifically, the connection mechanism may be an electric connection wire inserted into a plug port of the control mechanism, or may be a wireless transmission component integrated with the control mechanism.

When the online mechanism is switched on, the control mechanisms of all the wrenches can share data through the online mechanism, so that an operator can control all the wrenches to synchronously operate simultaneously by operating one wrench, the labor intensity of the operator can be reduced, and the torque output consistency of all the wrenches can be ensured. Of course, the on-line disconnection mechanism can be selected, and after disconnection, each wrench is controlled by the respective control mechanism independently and does not interfere with each other.

After one position operation, can promote sliding assembly to next operation position, all spanners reach next operation position along with sliding assembly, have saved the manpower transport to can further reduce operation personnel's intensity of labour, thereby more do benefit to and reduce the error rate.

Referring to fig. 1, in this embodiment, the sliding assembly 60 includes a sliding table 601, a resilient arm 602 coupled to the sliding table 601, and a connecting seat 603 coupled to the resilient arm 602, and the wrench 100 is coupled to the connecting seat 603. The bottom of the sliding table 601 is provided with a roller 601a. Elastic arm 602 can be with the help of the elastic deformation of self luffing motion all around to can drive connecting seat 603 and reach different positions, thereby can adapt to more operation scenes, the elasticity value design of elastic arm 602 is moreover: the connecting base can be kept at the deformation position after elastic deformation, so that the connecting base can be kept at the target position after reaching the target position. One application scenario is: the two wrenches of the wrench device are respectively positioned on two sides of the track and are respectively used for disassembling or screwing the nuts on two sides of the track fastener. Of course, it is not limited to this application scenario.

As shown in fig. 2, in this embodiment, the connection seat 603 includes a fixing seat 603a, a sliding seat 603c, and a positioning shaft 603b. The fixed seat 603a is connected to the elastic arm 602. The sliding seat portion 603C is connected to the oblong hole of the fixing seat portion 603a by a fastener, after the fastener is loosened, the sliding seat portion 603C can slide in the oblong hole of the fixing seat portion, and the sliding seat portion 603C can adopt a C-shaped plate structure. The spanner is connected in sliding seat portion 603c, and sliding seat portion 603c can drive the spanner and slide relatively fixed seat portion 603a together, and the sliding direction can be perpendicular to the sliding direction of slip table, can adjust the position of spanner in a flexible way like this, for example in the above-mentioned application scenario, the position of accessible adjustment sliding seat portion 603c makes two spanners apart from being closer to can adapt to narrower track, or makes two spanners apart from being farther, thereby can adapt to wider track. The fixing seat 603a is provided with a scale by which a sliding distance of the wrench with respect to the fixing seat 603c and a position of the wrench can be determined. The positioning shaft 603b is connected below the fixing seat 603a, and plays a role of supporting and positioning the fixing seat 603 a.

It should be noted that the structure of the connecting seat and the overall structure of the sliding assembly are not limited to the above embodiments, as long as the structure that can drive the wrench to slide and integrate the wrench functions is all.

In the illustrated embodiment, the two wrenches have the same structure, and the structure of one wrench will be described as an example. The wrench is shown as an impact wrench, and in practice, a straight-twist wrench or other types of impact wrenches may be used.

As shown in fig. 3, the wrench is provided with an impact mechanism 10, an output mechanism 20, a vibration damping mechanism 30, and an operating mechanism 40 in addition to the control mechanism 50. These mechanisms are described in detail below:

impact mechanism 10 and output mechanism 20

As shown in fig. 4, the impact mechanism 10 includes a housing 106, and a motor 101, a speed reduction member 102, a drive shaft 103, an elastic member 104, an impact block 105, a guide rail pair 107, and the like, which are integrated in the housing 106. The motor 101 may be a brushless motor. The impact block 105 is provided with a first protrusion 105a, and the output shaft 201 of the output mechanism 20 is provided with a second protrusion 201a. When the impact block 105 is at the initial position, the first projection 105a overlaps the second projection 201a of the output shaft 201 in the axial direction (in the illustrated state), and the first projection 105a and the second projection 201a are circumferentially spaced from each other.

The action process of the impact mechanism 10 is as follows:

the power of the motor 101 is transmitted to the driving shaft 103 through the speed reduction part 102, and drives the driving shaft 103 to rotate around the axis thereof, so as to drive the impact block 105 to rotate, so that the impact block 105 rotates from the initial position to a position contacting with the second protrusion 201a, and the second protrusion 201a is impacted at the moment of contact, so as to drive the output shaft 201 to rotate;

after the first protrusion 105a contacts with the second protrusion 201a, the impact block 105 will receive the resistance from the output shaft 201, under the resistance, the impact block 105 cannot rotate synchronously with the driving shaft 103 but also rotates relative to the driving shaft 103, and under the guiding action of the guide rail pair 107, the impact block 105 will move in the direction approaching the elastic component 104 along the axial direction while rotating relative to the driving shaft 103, so as to charge the elastic component 104 with energy;

after moving to a certain position, the first protrusion 105a of the impact block 105 and the second protrusion 201a of the output shaft 201 are not overlapped in the axial direction, but are staggered, at this time, the elastic component 104 releases the elastic energy, so that the impact block 105 is reset to the initial position, the impact process is repeated again, and the process is repeated in a circulating manner until the motor 101 is shut down.

The output shaft 201 rotates to drive the sleeve or the cylinder connected to the end of the output shaft 201 to rotate, the sleeve is sleeved outside the nut, the bolt and other parts to be unscrewed or screwed, and the cylinder extends into the counter bore of the nut, the bolt and other parts to be unscrewed or screwed, so that the nut, the bolt and other parts are driven to rotate, and therefore unscrewing or screwing is achieved.

Vibration damping mechanism 30

The vibration damping mechanism 30 is connected between the operating mechanism 40 and the impact mechanism 10, and can effectively block the transmission of the vibration to the operating mechanism 40, thereby reducing the hand vibration sensation of the user.

As shown in fig. 5, the damper mechanism 30 includes a connecting member 301, a first elastic damper member 302, a fixing portion 303, and a second elastic damper member 304. The connection member 301 includes a first connection portion 301a, a second connection portion 301b, and a third connection portion 301c.

As shown in fig. 5, the first connecting portion 301a is connected to the operating mechanism 40 (in the figure, the support shaft 402b is a part of the operating mechanism 40), and in the illustrated embodiment, the first connecting portion 301a is in a sleeve structure and is sleeved outside the support shaft 402b, a limit stop is provided at one end of an inner hole of the sleeve, and one end of the support shaft 402b abuts against the stop to realize positioning. Of course, the first connection portion 301a is not limited to the sleeve structure, and may be any structure that can achieve connection with the operating mechanism 40.

As shown in fig. 5, the second connecting portion 301b and the impact mechanism 10 are axially offset from each other, so that an axially spaced space is formed between the second connecting portion 301b and the impact mechanism 10. A first elastomeric damper 302 is disposed in the axially spaced space. As shown in fig. 6, the two ends of the first elastic damping member 302 are connected with fixing portions 303, the fixing portions 303 at the two ends are spaced from each other and do not contact each other, the fixing portions 303 may be made of metal, the first elastic damping member 302 may be made of rubber, and the fixing portions 303 and the first elastic damping member 302 may be vulcanized together. As shown in fig. 5, one end of the first elastic vibration damping member 302 is connected to the second connecting portion 301b via the fixing portion 303, and the other end is connected to the housing 106 of the impact mechanism 10 via the fixing portion 303, and the connection may be realized by a fastening screw, a fastening nut, or the like, or by a thread on the fixing portion 303 itself. With this structure, it is ensured that the connecting member 301 and the impact mechanism 10 are in elastic contact only through the first elastic vibration damping member 302 in the axial direction, and there is no rigid contact, thereby effectively blocking the transmission of the vibration of the impact mechanism 10 to the operating mechanism 40.

In the illustrated embodiment, the second connecting portion 301b is a flange plate, which facilitates connection with the fixing portion 303, but is not limited to the flange plate, and may be connected with the fixing portion 303. In the illustrated embodiment, the second connecting portion 301b is disposed above the distal end of the impact mechanism 10, and the axial space is formed between the second connecting portion 301b and the distal end surface of the impact mechanism 10, or alternatively, a flange may be provided on the outer periphery of the impact mechanism 10, and the second connecting portion 301b may be disposed above the flange, and the axial space may be formed between the flange and the second connecting portion 301 b.

As shown in fig. 5, the third connecting portion 301c at least partially surrounds the periphery of the impact mechanism 10 and is radially offset from the impact mechanism 10, so that a radially spaced space is formed between the impact mechanism 10 and the impact mechanism 10. The second elastic vibration damper 304 is disposed in the radially spaced space and is in close contact with the impact mechanism 10 and the third connecting portion 301c. The second elastic damping member 304 further blocks the transmission of the vibration of the impact mechanism 10 to the operating mechanism 40 and also further positions the damping mechanism 30 to stabilize the radial position of the damping mechanism 30. The second elastic vibration damping member 304 may have a ring structure or a plurality of block structures arranged at regular intervals in the circumferential direction.

It should be noted that the second elastic damping member 304 may not be provided if the radial stiffness of the first elastic damping member 302 is set sufficiently large, but the radial stiffness of the first elastic damping member 302 is not too large, which may affect the damping performance. It is preferred to provide both the first elastomeric damping member 302 and the second elastomeric damping member 304 with appropriate levels of stiffness.

As shown in fig. 5, the inner circumferential surface of the third connecting portion 301c and/or the outer circumferential surface of the impact mechanism 10 are provided with a groove 1 adapted to the outer surface shape and size of the second elastic vibration damping member 304, so as to accommodate the second elastic vibration damping member 304. In the illustrated embodiment, a groove 106a is provided on the outer circumferential surface of the impact mechanism 10, and the second elastic vibration damping member 304 is partially fitted in the groove 106 a. Due to the design, the second elastic damping piece 304 can be positioned and installed without other connecting parts, and the structure is simplified.

In the illustrated embodiment, the third connecting portion 301c is of a sleeve structure, but is not limited to the sleeve structure, and may be configured to surround the outer periphery of the impact mechanism 10. In the scheme in the figure, two sleeve structures are respectively connected to two ends of the flange plate, and the two sleeve structures and the flange plate can be integrally formed.

Operating mechanism 40

As shown in fig. 3, the operating mechanism 40 includes an operating mechanism body 401, and the operating mechanism body 401 includes an input member for a user to input an instruction, a first grip 401a, and a second grip 401B having an anti-slip structure B on a surface thereof. The input unit may adopt a key structure, and in the figure, the input unit includes an activation key 401d, but of course, the input unit may also adopt a touch screen structure. In the figure, the start button 401d is integrated on the surface of the first holding member 401a, the user may touch and press the start button 401d when holding the first holding member 401a, and after the start button 401d is pressed, the control mechanism 50 receives an instruction for instructing to start the motor 101, so as to control the motor 101 to start. In the illustrated scheme, two first holding pieces 401a are arranged, and the holding directions of the two first holding pieces 401a are different, so that in the using process, a user can select the first holding piece 401a which is convenient to hold according to the position where the user is located. The user may hold the second grip 401b during operation of the wrench or during movement of the wrench.

It should be noted that the instruction input by the user through the input unit is not limited to the start instruction, and may include: instructions for indicating a forward or reverse rotation of a motor of the wrench; if the motor is provided with multiple gears, the method also comprises the following steps: instructions indicating a rotational speed gear of a motor of the wrench; if the spanner is provided with an illuminating lamp, the spanner can further comprise: an instruction for indicating the on-off of an illuminating lamp of the wrench; if the wrench is provided with a display, the method can further comprise the following steps: and instructions for opening and closing a display of the wrench. Different commands can be input through different input components, and also can be input through different operations on the same input component.

As shown in fig. 3, the actuator 40 further includes a bracket 402, and the actuator body 401 and the control mechanism 50 are attached to the bracket 402. Specifically, the holder 402 includes a stage 402a, an arm 402c connected to the stage 402a, and a support shaft 402b connected to a lower portion of the stage 402a, the control mechanism 50 is mounted on the stage 402a, a top portion of the arm 402c extends above the control mechanism 50 while bypassing the control mechanism 50, and each gripper of the actuator body 401 is connected to a top portion of the arm 402 c. The design like this, compact structure saves space.

In this embodiment, the first grip 401a includes a protection key 401c in addition to the activation key 401 d. As shown in fig. 7, the first holding member 401a has an inner cavity, and one end of the protection button 401c has an interference portion. When the protection key 401c is not pressed, the collision part thereof collides with the start key 401d, so that the start key 401d cannot be pressed, and after the protection key 401c is pressed, the collision part thereof avoids the start key 401d, so that the start key 401d can be normally pressed. By adopting the structure, the starting key 401d can be pressed only after the protection key 401c is pressed, so that the problem of safety accidents caused by the fact that the starting key 401d is touched carelessly to cause the wrong starting of the wrench can be avoided.

The guard button 401c and the start button 401d are both integrated in the first grip 401a, and when the user holds the first grip 401a, the guard button 401c and the start button 401d can be pressed together, so that the problem that the user's operation is complicated by the provision of the guard button 401c can be overcome. It is preferable that the protection key 401c is disposed at a portion where the first grip 401a is first gripped, and the activation key 401d is disposed at a portion where the first grip 401a is then gripped, so that the protection key 401c can be pressed first and then the activation key 401d can be pressed for each gripping, and normally, the upper portion of the first grip 401a is first gripped, and the lower portion is then gripped, so that the protection key 401c can be collected on the upper portion of the first grip 401a, the activation key 401d can be collected on the lower portion of the first grip 401a, and the protection key 401c and the activation key 401d are arranged in an opposed manner.

Furthermore, the wrench can be provided with a collecting mechanism. The acquisition mechanism is used for acquiring the current operation data of the motor in real time. The control mechanism is in communication connection with the acquisition mechanism, so that the control mechanism can calculate the current output torque of the output mechanism and/or judge the current operation state of the motor and/or control the start and stop of the motor according to the current operation data of the motor and/or an instruction input by a user.

The acquisition mechanism includes, but is not limited to, a current sensor and a speed sensor, the current sensor acquires the current of the motor, and the speed sensor acquires the current speed of the motor.

Specifically, the current output torque of the output mechanism of the wrench may be calculated by: firstly, judging the starting time of an impact block impact output mechanism of the wrench according to the current change of the motor, in particular to the starting time of the impact block impact output mechanism when the current suddenly increases; and then, calculating the current output torque of the output mechanism once every preset time from the starting moment according to a preset formula until the control mechanism controls the motor to stop. The preset formula is: the current output torque of the output mechanism = the current rotating speed of the motor, the current impact duration, the gear coefficient, the constant and the power supply voltage feedback coefficient. The gear coefficients corresponding to different rotating speed gears are different. In one embodiment, every predetermined time is every 0.1s.

Specifically, the motor can be controlled to start and stop in the following ways: firstly, controlling the motor to be started according to a command which indicates the starting of the motor and/or a command which indicates the rotating speed gear of the motor and is input by a user; and then, when the running time of the motor reaches the preset time, controlling the motor to stop. The preset time periods corresponding to different speed gears may be different.

Further, the wrench can be provided with a display. The display may be a liquid crystal display, a digital tube display, or the like. The control mechanism is in communication connection with the display, so that the control mechanism can control the display to be opened and closed according to instructions input by a user and/or control the display to display the calculated current output torque of the output mechanism and/or the current operation information of the motor and/or the instructions input by the user and/or warning information. The current operation information of the motor comprises information such as rotating speed, steering, gear, starting, stopping and faults. The user can judge whether the wrench reaches the torque required by operation or not by checking the calculated current output torque, and for the convenience of checking by the user, the display can be controlled to continue to display the interface of the current output torque for a period of time after the motor is stopped, and then the main interface or other interfaces are returned.

Specifically, the display may be controlled to display the warning information in the following manner: and when the running time of the motor is shorter than the preset time, controlling the display to display warning information. The warning information may be text and/or pictures and/or sounds. After seeing the warning information, the user can try the operation again, if still appearing the warning information, show the spanner trouble.

Furthermore, the wrench may further be provided with a torque detection mechanism for detecting a current output torque of the output mechanism. The torque sensing mechanism includes, but is not limited to, a torque sensor. The control mechanism may be in communication with the torque sensing mechanism to enable the control mechanism to control the display to display the sensed current output torque of the output mechanism. The user can determine whether the wrench is normal by comparing the calculated current output torque of the output mechanism displayed on the display with the detected current output torque of the output mechanism for a significant difference.

Furthermore, the spanner can also be provided with an illuminating lamp. In one embodiment, the lighting lamp is installed outside the housing 106, the lighting lamp is provided with a plurality of LED beads along the circumferential direction, and the focusing points of the plurality of LED beads are located at one end of the output shaft 201 connected to the sleeve or the column, so as to obtain a better lighting effect. Of course, the structure and the installation position of the illuminating lamp can be flexibly adjusted according to actual needs. The control mechanism is in communication connection with the illuminating lamp, so that the control mechanism can control the illuminating lamp to be turned on or off and/or control the illuminating lamp to emit warning light according to the instruction of a user.

Specifically, the control means may control the illumination lamp to be turned on or off based on an instruction to turn on or off the illumination lamp input by the user, or may control the illumination lamp to be turned on or off based on a built-in time program or a built-in trigger program.

Specifically, the illuminating lamp can be controlled to emit the warning light in the following modes: and when the running time of the motor is shorter than the preset time, the lighting lamp is controlled to emit warning light. The warning light may be a light that blinks at a particular frequency or a light having a particular color or a light having a particular brightness, etc. After seeing the warning light, the user can try the operation again, if still appearing the warning light, show the spanner trouble.

Furthermore, the control mechanism can be provided with a power-off storage part, and the current instruction input by the user is stored when the power is off. When the power is turned on again, the control mechanism may directly adopt the instruction stored in the power-off storage section as the current instruction, but if the user re-inputs the instruction, the control mechanism controls the power-off storage section not to hold the instruction, but adopts the instruction re-input by the user as the current instruction.

Further, the control mechanism may be provided with a counter for recording the number of times that the single operation time length of the motor reaches the preset time length. The control mechanism controls the display to display the recorded times, and then the display can be further controlled to return to the main interface. And if the motor is started and operated, but the operation time length does not reach the preset time length, not recording. When the recorded times reach the preset times, information for reminding the user of maintaining can be displayed on the display.

In summary, the wrench device and the control method thereof provided by the invention realize online control of two or more wrenches, so that an operator can control a plurality of wrenches simultaneously by one operation, and the wrench can be driven to reach the next operation position by pushing the sliding component without manual transportation, thereby reducing the labor intensity of the operator and being beneficial to reducing the error rate. Meanwhile, online control also ensures the consistency of torque output of the plurality of wrenches, and functions of automatic stop, automatic torque calculation and display, automatic torque detection and display, automatic error reporting and the like are realized, so that the operation is more intelligent.

The present invention provides a wrench device and a control method of the wrench device. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, it is possible to make various improvements and modifications to the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.

Claims

1. A wrench device, comprising:

at least two wrenches (100), each of said wrenches being provided with a control mechanism (50);

the sliding assembly (60) is assembled with all the wrenches and slides synchronously with the sliding assembly;

2. A wrench device as claimed in claim 1, wherein each of said wrenches is provided with: an input part for a user to input an instruction; the control mechanism is in communication with the input member such that the control mechanism can control the wrench in accordance with instructions input by a user.

3. A wrench device as claimed in claim 2, wherein each of said wrenches is provided with: the device comprises a motor (101), an output mechanism (20) driven by the motor and a collecting mechanism for collecting the current operation data of the motor in real time; the control mechanism is in communication connection with the acquisition mechanism, so that the control mechanism can calculate the current output torque of the output mechanism and/or judge the current operation state of the motor and/or control the starting and stopping of the motor according to the current operation data of the motor and/or an instruction input by a user.

4. A wrench device as claimed in claim 3, wherein each of said wrenches is provided with: an impact block (105) driven by the motor and for impacting the output mechanism; the acquisition mechanism comprises a current sensor and a rotating speed sensor.

5. A wrench device as claimed in claim 3, wherein each of said wrenches is provided with: a display; the control mechanism is in communication connection with the display, so that the control mechanism can control the display to be opened and closed according to an instruction input by a user and/or control the display to display the calculated current output torque of the output mechanism and/or display the current operation information of the motor and/or display the instruction input by the user and/or display warning information.

6. A wrench device as claimed in claim 5, wherein each of said wrenches is provided with a torque sensing mechanism for sensing the current output torque of said output mechanism; the control mechanism is in communication connection with the torque detection mechanism, so that the control mechanism can control the display to display the detected current output torque of the output mechanism.

7. A wrench device as claimed in claim 3, wherein each of said wrenches is provided with: an illuminating lamp; the control mechanism is in communication connection with the illuminating lamp, so that the control mechanism can control the illuminating lamp to be turned on or off and/or control the illuminating lamp to emit warning light according to an instruction input by a user.

8. A wrench device as claimed in any one of claims 2 to 7, in which said control means includes: and the power-off storage component is used for storing the instruction input by the current user when the power is off.

9. A wrench device as claimed in any one of claims 3 to 7, wherein the control means includes a counter for recording the number of times a single run of the motor has reached a predetermined length.

10. The wrench device according to any one of claims 1-7, wherein the slide assembly includes: a sliding table (601), an elastic arm (602) connected with the sliding table, and a connecting seat (603) connected with the elastic arm; the wrench is mounted on the connecting seat (603), and the elastic arm can drive the connecting seat and the wrench to move to a target position and keep the target position by utilizing the elasticity of the elastic arm.

11. The wrench device according to claim 10, wherein the wrench is capable of including a fixed seat portion (603 a) fixed to the elastic arm and a sliding seat portion (603 c) capable of sliding in a direction perpendicular to a sliding direction of the slide table at the connecting seat (603), the wrench is connected to the sliding seat portion (603 c), and the fixed seat portion is provided with a scale for indicating a position of the sliding seat portion and a sliding distance with respect to the fixed seat portion.

12. The wrench device according to claim 11, wherein the bottom of the sliding table is provided with a roller (601 a) capable of adapting to a rail, a part to be screwed is a part of the rail, at least one wrench is positioned on one side of the rail, and at least one wrench is positioned on the other side of the rail.

13. A control method of a wrench device according to any one of claims 1 to 12, comprising: the on-line mechanism is switched off, and each wrench is independently controlled by a respective control mechanism; or the connecting mechanism is switched on, and the control mechanism of one wrench controls all the wrenches.

14. The control method of a wrench device according to claim 13, comprising: controlling the wrench according to an instruction input by a user; the user-entered instructions include: the instruction of indicating the motor of the spanner to rotate forwards or backwards, the instruction of indicating the rotating speed gear of the motor of the spanner, and the instruction of indicating the motor of the spanner to start.

15. The control method of a wrench device according to claim 14, comprising: and calculating the current output torque of an output mechanism of the wrench according to the collected current operation data of the motor and/or an instruction input by a user, and/or judging the current operation state of the motor and/or controlling the motor to start and stop.

16. The control method of a wrench device according to claim 15, wherein the "collected current operation data of the motor" includes: current and rotational speed;

the method for calculating the current output torque of the output mechanism of the wrench comprises the following steps: judging the starting moment of the impact block of the wrench impacting the output mechanism according to the current change; calculating the current output torque of the output mechanism once every preset time according to a preset formula from the starting moment until the control mechanism controls the motor to stop; the preset formula is as follows: the current output torque of the output mechanism = the current motor rotating speed, the current impact duration, the gear coefficient, the constant and the power supply voltage feedback coefficient; the gear coefficients corresponding to different rotating speed gears are different.

17. The method for controlling a wrench device according to claim 15, wherein the method for "controlling the motor to start and stop" is: controlling the motor to be started according to the 'instruction for indicating the rotating speed gear of the motor' and/or the 'instruction for indicating the rotating speed gear of the motor' input by a user; and when the running time of the motor reaches the preset time, controlling the motor to stop.

18. The control method of a wrench device according to claim 15, comprising: controlling a display of the wrench to open and close according to an instruction input by a user, and/or controlling the display to display the calculated current output torque of the output mechanism, and/or controlling the display to display the current running information of the motor, and/or controlling the display to display the instruction input by the user, and/or controlling the display to display warning information.

19. The control method of a wrench device according to claim 18, wherein said method of controlling said display to display a warning message is: and when the running time of the motor is shorter than the preset time, controlling the display to display warning information.

20. The method of controlling a wrench device according to claim 18, wherein the current output torque of the output mechanism is detected, and the display is controlled to display the detected current output torque of the output mechanism.

21. The control method of a wrench device according to claim 17, comprising: and controlling the illuminating lamp to be switched on and off and/or controlling the illuminating lamp to emit warning light according to an instruction input by a user.

22. The control method of a wrench device according to claim 21, wherein said method of controlling said illumination lamp to emit a warning light is: and when the running time of the motor is shorter than the preset time, controlling the illuminating lamp to emit warning light.

23. A control method of a wrench device according to any one of claims 17-22, including: and recording the times of the motor reaching the preset time length in the single-time running, and controlling a display of the wrench to display the recorded times.

24. A control method of a wrench device according to any one of claims 14-22, including: and when the power is off, the instruction input by the current user is saved until the user re-inputs the instruction.