KR20140009868A - Digital torque wrench - Google Patents

Digital torque wrench Download PDF

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Publication number
KR20140009868A
KR20140009868A KR1020120076853A KR20120076853A KR20140009868A KR 20140009868 A KR20140009868 A KR 20140009868A KR 1020120076853 A KR1020120076853 A KR 1020120076853A KR 20120076853 A KR20120076853 A KR 20120076853A KR 20140009868 A KR20140009868 A KR 20140009868A
Authority
KR
South Korea
Prior art keywords
torque
torque value
unit
battery
torque values
Prior art date
Application number
KR1020120076853A
Other languages
Korean (ko)
Inventor
김병길
김승혁
최기혁
유승원
Original Assignee
현대중공업 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 현대중공업 주식회사 filed Critical 현대중공업 주식회사
Priority to KR1020120076853A priority Critical patent/KR20140009868A/en
Publication of KR20140009868A publication Critical patent/KR20140009868A/en

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Classifications

    • 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
    • B25B23/142—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers specially adapted for hand operated wrenches or screwdrivers
    • B25B23/1422—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers specially adapted for hand operated wrenches or screwdrivers torque indicators or adjustable torque limiters
    • 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
    • B25B23/18—Devices for illuminating the head of the screw or the nut

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)

Abstract

The present invention relates to a digital torque wrench. The digital torque wrench according to the present invention comprises; a lighting unit with supply of a direct current power supply to generate work lighting; and a battery to supply a direct current power supply to the lighting unit; and a torque sensor to detect a current torque value applied to a head; and a matching unit to detect a residual quantity of energy accumulation for transmission to a control unit after matching processing and to match process current torque values detected by the torque sensor for transmission to a control unit; and a display unit for residual quantities of a battery to display a residual quantity of energy accumulation for the battery; and a switch to set torque values for inputting signals to set torque values by manual operation; and a display unit for set torque values to display set torque values; and a display unit for current torque values displaying current torque values applied to the head: and a control unit which sets torque values to be applied to the head to display in the display unit for set torque values according to operation of the switch for setting torque values to display in the display unit for set torque values, and has the current torque values applied to the head by manual operation of a handle inputted from the torque sensor through the matching unit to display in the display unit for current torque values, and displays a residual quantity of battery's energy accumulation inputted from the matching unit in the display unit for residual quantities of battery. According to the present invention, independent work lighting is provided to allow easy working even in dark places for efficient performing of tightening operations, and to allow reduction of errors in the tightening operation between workers by setting driving torque values and tightening work objects with the relevant set torque values.

Description

Digital Torque Wrench

The present invention relates to a digital torque stove that performs the work of tightening the bolts, nuts, screws, etc. by manually applying a torque (torque), in particular, provides a self-working light to facilitate the tightening operation in the dark place as well as driving The present invention relates to a digital torque wrench configured to reduce a tightening work error between workers by setting a torque value and tightening a work object with the set torque value.

In general, torque wrenches are used when tightening bolts, nuts, screws, etc. on industrial sites.

Such a torque wrench manually torques the work object to tighten the bolts, nuts, screws, and the like.

Conventionally, when a tightening operation is performed by using a torque wrench in a dark place or inside a block, the work light is separately installed or the work is performed by receiving external light support. There is a problem.

In the related art, when a tightening operation is performed using a torque wrench, workers at the same workplace participating in the fabrication and assembly of the same article tighten the workpiece by setting different torque values according to angles and positions of reading torque scales. Due to this, there is a problem that an error in tightening operation occurs between workers.

The present invention has been proposed in order to solve the problems of the prior art as described above, by providing a self-working light to facilitate tightening work even in a dark place, and set the drive torque value to set the work object with the set torque value It is an object of the present invention to provide a digital torque wrench that reduces the tightening error between workers by tightening.

In order to achieve the object as described above, the present invention is a digital torque wrench for tightening the work by applying a torque to the head by manually coupling the head to the work object, receiving a work light by receiving a DC power supply Generating lighting unit; A battery for supplying DC power to the lighting unit; A torque sensor for detecting a current torque value applied to the head; A matching unit configured to detect the remaining amount of power storage of the battery, match, process, and transmit the matched power to the controller; A battery remaining amount display unit displaying a remaining amount of electricity stored in the battery; A torque value setting switch for inputting a signal for setting the torque value by manual operation; A set torque value display unit for displaying the set torque value; A current torque value display unit for displaying a current torque value applied to the head; According to the operation of the torque setting switch, the torque value to be applied to the head is set and displayed on the set torque value display unit, and the current torque value applied to the head by manual operation of the handle is transferred from the torque sensor to the matching unit. And a control unit which receives an input and displays the current torque value display unit, and displays a power storage remaining amount of the battery received from the matching unit on the battery remaining display unit.

According to the digital torque wrench according to the present invention, the torque value setting switch comprises: a torque setting switch instructing setting of a torque value; A torque unit selection switch for selecting a unit of torque value for setting; A set value increasing switch for increasing a set torque value; And a set value reducing switch for reducing the set torque value.

According to the present invention, by providing a self-working light to facilitate tightening work in a dark place, and also set the drive torque value to tighten the work object to the set torque value to reduce the tightening work error between workers.

1 is a perspective view showing the appearance of a digital torque wrench according to the present invention.
2 is a plan view showing a digital torque wrench according to the present invention.
3 is a circuit diagram of a circuit provided in the digital torque wrench according to the present invention.
4 is a diagram illustrating switching of the head portion in the digital torque wrench according to the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The digital torque wrench 100 according to the present invention is as shown in FIGS. 1 and 2. At the tip of the body 10 of the digital torque wrench 100, the head 50 is coupled to a bolt, nut, screw, etc. to transmit torque to perform a tightening operation, but the head 50 corresponds to the tightening target object. It can be replaced by the standard, and as shown by the arrow (B-B ') to switch in the up and down direction to enable the tightening operation for the upper or lower work object (switching in the downward direction in Figure 1). One state, and FIG. 4 shows a state of switching upward. All. In addition, the head 50 is provided with an illumination unit 40 for providing work lighting in the vicinity, the illumination unit 40 can be implemented using a light emitting diode (LED) or a light emitting lamp.

In addition, the body 10 of the digital torque wrench 100 is applied to the battery remaining amount display unit 21 for displaying the remaining amount of storage of the battery supplying the DC current to the lighting unit 40 and the head 50 during the tightening operation. The present torque value display part 22 which displays a present torque value, and the set torque value display part 23 which display the set torque value for applying to the head 50 at the time of the tightening operation | work set by an operator are provided.

In addition, the body 10 of the digital torque wrench 100 is provided with a torque value setting switch, the torque value setting switch is a torque setting switch 24, a torque unit selection switch 25, a set value increasing switch 26 ) And a set value reduction switch 27. The torque setting switch 24 instructs the setting of the torque value to be applied to the head 50 during the tightening operation, the torque unit selection switch 25 selects the unit of the torque value for setting, and the set value increasing switch 26 ) Increases the set torque value, and the set value decrease switch 27 decreases the set torque value.

In addition, the battery remaining amount display unit 21, the current torque value display unit 22, the set torque value display unit 23, the torque setting switch 24, the torque unit selection switch 25, the set value increase switch 26 and the set value Since the display operation module 20 in which the reduction switch 27 is installed can be manually rotated as indicated by the arrow A-A ', the switch operation can be performed regardless of the position of the object. In addition, the display unit can be confirmed.

In addition, the body 10 is provided with a handle 30 for manually torqueing the head 50 at the time of tightening, so that the digital torque wrench 100 is shown by the operator manually by the handle 30 in FIG. The torque is applied to the head 50 by applying a force in one direction by operating in the direction indicated by the arrow to perform the tightening operation.

In addition, the handle 30 is provided with a battery 60, as shown in Figure 2, the battery 60 is a circuit provided in the body 10 while supplying a DC power to the lighting unit 40 Supply DC power to drive.

In addition, a torque sensor 15 for detecting a torque value applied to the head 50 is provided inside the body 10, and the digital torque wrench 100 applies a torque to the head 50 to perform a tightening operation. In this case, the torque value detected by the torque sensor 15 is displayed on the current torque value display section 22.

The operator can set the torque value to apply to the head 50 in the tightening operation to the digital torque wrench 100. First, by pressing the torque setting switch 24 to input the torque value to set the torque unit Manually operate the selector switch 25 to select the unit of the torque to be set, and manually operate the set value increase switch 26 to sequentially increase the set value or manually operate the set value decrease switch 27 to set the set value. Are sequentially reduced to input the desired torque value, and then the torque setting switch 24 is pressed again to set the torque value to be applied to the head 50 during the tightening operation.

In addition, the digital torque wrench 100 according to the present invention includes a circuit made as shown in FIG. 3 for setting a torque value and displaying a detection. The control unit 28 is adapted to apply to the head 50 during the tightening operation according to the manual operation of the torque setting switch 24, the torque unit selection switch 25, the set value increasing switch 26 and the set value decreasing switch 27. The torque value is set, but the input of the torque value is displayed on the set torque value display unit 23 so that the input torque value can be visually confirmed, thereby allowing the operator to input the torque value input through the set torque value display unit 23. Check the torque value.

Then, the control unit 28 receives the torque value applied to the head 50 detected by the torque sensor 15 during the tightening operation through the matching unit 29 and displays the current torque value display unit 22.

In addition, when the controller 28 applies a torque to the head 50 by a manual operation of the handle 30 by an operator to perform a tightening operation, the torque sensor 15 applies a torque value currently applied to the head 50. The current torque value is inputted through the matching unit 29 and the current torque value is displayed on the current torque value display unit 22, and the set torque value is displayed on the set torque value display unit 23 to thereby display the set torque value and the current torque value. Can be visually identified together.

In addition, the controller 28 receives a signal indicating the remaining amount of storage of the battery 60 supplying the DC power to the lighting unit 40 through the matching unit 29 to display the remaining amount of storage of the battery on the remaining battery display 21. do.

In addition, the battery 60 has been described as supplying DC power to the lighting unit 40, but is not limited thereto. The controller 28, the matching unit 29, the power state display unit 21, and the current torque value display unit 22 are described. ) And a DC power supply for driving the set torque value display section 23.

In addition, the matching unit 29 matches the signal indicating the current torque value applied from the torque sensor 15 to the control unit 28 so that the control unit 28 can use it, and delivers the remaining power storage of the battery 60. The control unit 28 detects and stores the power storage remaining signal so as to be usable by the controller 28, and transmits the signal to the controller 28.

The operation of the digital torque wrench 100 according to the present invention having the function as described above will be described below.

First, before the operator performs the tightening operation using the digital torque wrench 100, a torque value for applying to the head 50 at the tightening operation is set in the digital torque wrench 100, and the torque setting switch 24 Press and input the torque value to be set, but manually operate the torque unit selection switch 25 to select the unit of the torque value to be set, and manually operate the set value increase switch 26 to increase the set value sequentially. Manually operating the set value reducing switch 27 to sequentially decrease the set value to input the desired torque value, and then press the torque setting switch 24 again to apply the torque value to the head 50 during the tightening operation. Is set in the control unit 28.

Thus, when setting the torque value by manual operation of the torque setting switch 24, the torque unit selection switch 25, the setting value increasing switch 26, and the setting value decreasing switch 27, the control part 28 is The input of the torque value is displayed on the set torque value display unit 23 to enable the operator to visually check the input torque value.

Then, the operator manually manipulates the handle 30 to apply torque to the head 50 to perform the tightening operation. At this time, the control unit 28 receives the torque value currently applied to the head 50 from the torque sensor 15 through the matching unit 29 and displays the current torque value on the current torque value display unit 22. By displaying the set torque value on the set torque value display section 23, the operator can perform the tightening operation manually while visually confirming the set torque value and the current torque value together.

In addition, when the work is performed using the digital torque wrench 100, the lighting unit 40 receives DC power from the battery 60 and emits light to provide work lighting, thereby allowing the operator to work on the head 50. Properly tighten the position to allow tightening. In addition, the controller 28 receives a signal indicating the remaining amount of storage of the battery 60 for supplying DC power to the lighting unit 40 from the matching unit 29, and stores the remaining amount of storage of the battery 60 as the remaining battery display 21. Mark on.

As described above, the digital torque wrench 100 according to the present invention provides self-work lighting by the lighting unit 40 so that the work can be easily performed even in a dark place so that the tightening operation can be efficiently performed, and the driving torque value is set. Tightening the work object to the set torque value to reduce the tightening work error between workers.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention. And such changes are considered to be within the technical scope of the present invention.

The present invention can be usefully applied to the case of performing the work to tighten the bolts, nuts, screws and the like in the industrial field. According to the present invention, it is possible to work easily even in a dark place by providing a self-work light to perform the tightening work efficiently, by setting the drive torque value to tighten the work object to the set torque value tightening work error between workers Can be reduced.

10; Body 15; Torque sensor
21; A battery level indicator 22; Current torque value display
23; A set torque value display section 24; Torque setting switch
25; Torque unit selection switch 26; Setpoint increase switch
27; Setpoint reduction switch 28; The control unit
29; Mating portion 30; handle
40; Lighting unit 50; head
60; A battery 100; Digital torque wrench

Claims (2)

A digital torque wrench that engages a head to a workpiece and manually torques the head to tighten the workpiece.
An illumination unit configured to generate a work light by receiving a DC power;
A battery for supplying DC power to the lighting unit;
A torque sensor for detecting a current torque value applied to the head;
A matching unit configured to detect the remaining amount of power storage of the battery, match and process the battery, and match and transmit the current torque value detected by the torque sensor to the controller;
A battery remaining amount display unit displaying a remaining amount of electricity stored in the battery;
A torque value setting switch for inputting a signal for setting the torque value by manual operation;
A set torque value display unit for displaying the set torque value;
A current torque value display unit for displaying a current torque value applied to the head;
According to the operation of the torque setting switch, the torque value to be applied to the head is set and displayed on the set torque value display unit. And a control unit which receives the input and displays the current torque value display unit and displays the power storage remaining amount of the battery received from the matching unit on the battery remaining amount display unit.
The method of claim 1,
The torque value setting switch,
A torque setting switch for instructing setting of a torque value;
A torque unit selection switch for selecting a unit of torque value for setting;
A set value increasing switch for increasing a set torque value;
And a set value reducing switch for reducing the set torque value.
KR1020120076853A 2012-07-13 2012-07-13 Digital torque wrench KR20140009868A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020120076853A KR20140009868A (en) 2012-07-13 2012-07-13 Digital torque wrench

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020120076853A KR20140009868A (en) 2012-07-13 2012-07-13 Digital torque wrench

Publications (1)

Publication Number Publication Date
KR20140009868A true KR20140009868A (en) 2014-01-23

Family

ID=50142869

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020120076853A KR20140009868A (en) 2012-07-13 2012-07-13 Digital torque wrench

Country Status (1)

Country Link
KR (1) KR20140009868A (en)

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WITN Withdrawal due to no request for examination