JP3197744U - Air driven impact tool with torque measurement function - Google Patents

Abstract

A torque measurement function capable of clearly knowing a torque value at the time of actual operation and not causing an overload, so that an object to be driven is not damaged and can secure a user's safety. Provided with air driven impact tool. A rotating mechanism 21 and a whispering member 22 are provided therein. The whispering member 22 is provided with at least one whirling block 221 and a rotating portion 222 connected to each whirling block 221, and each whirling block 221 and the rotating portion 222 are synchronized with the rotating mechanism 21. It is provided so as to be inserted through the interlocking main body and each of the burning blocks 221. Also, the transmission shaft 23 that is intermittently driven by each of the rolling blocks 221, a mark member 25 provided with a plurality of sections, at least two sensors 26 that measure the mark member 25, And a torque measurement unit 24 in which the mark member 25 rotates in synchronism with the rotation mechanism 21. [Selection] Figure 2

Description

  The present invention relates to an air-driven impact tool, and more particularly to an air-driven impact tool with a torque measurement function.

  In a general air-driven impact tool, the transmission shaft is driven by an intermittent impact on the transmission shaft of the rolling block in the rolling mechanism. Thereby, it is possible to obtain a larger torque. When designing an air-driven impact tool, it is necessary to consider the maximum rotation speed and maximum torque value if necessary, and safety can be ensured during use. Only the numerical value (for example, the maximum torque value is 610 Nm) is known, and the actual information during the operation (for example, normal rotation, reverse rotation, or torque value) cannot be known. In this way, the user uses an air-driven impact tool based on long-term experience, and when the experience is insufficient, the user cannot clearly know the proper output torque, so the driven object is easily damaged, In addition, the user may be injured.

  The purpose of the present invention is to clearly know the torque value at the time of actual operation, the user can know the proper torque value of the driven object, and does not generate overload. An object of the present invention is to provide an air-driven impact tool with a torque measurement function capable of ensuring the safety of a user without damaging a driven object.

  According to the air-driven impact tool of the present invention, a rotation mechanism and a whispering member are provided therein, and the whirling member includes at least one whispering block and a rotation connected to each whispering block. And each rolling block and the rotating part are provided so as to pass through the main unit synchronized with the rotation mechanism and each winding block, and are intermittently driven by each rolling block. A transmission shaft, a mark member provided with a plurality of sections, at least two sensors for measuring the mark member, and a calculation processing unit electrically connected to the at least two sensors. In a pneumatically driven impact tool with a torque measurement function including a torque measurement unit in which a member rotates in synchronization with a rotation mechanism, each of the rolling blocks is subjected to a turning impact along a certain direction, The block, the rotating part, and the mark member are rotated in the reverse direction by the reaction force caused by the turning impact, and the calculation processing unit is configured to detect the section by at least two sensors when the mark member is rotated in the reverse direction. The information obtained by measuring the degree of rotation is received and the corresponding torque value is calculated.

  According to the air driven impact tool of the present invention, the rotation mechanism is provided with a spindle, and the spindle drives the rotating portion and the mark member in synchronization.

  According to the air driven impact tool of the present invention, the spindle, the rotating part, and the mark member are provided coaxially.

  According to the pneumatically driven impact tool of the present invention, at least two sensors are located on one extension line along the radial direction of the mark member so as to face the mark member.

  According to the air driven impact tool of the present invention, the mark member is provided with a large number of overlappingly arranged coding units, and each coding unit is coded in order along the first direction. Each of these sections, and when the mark member is rotating in the second direction, determine whether the second direction is the same as the first direction by the order in which the processing unit confines the coding. It is characterized by.

  According to the air driven impact tool of the present invention, each sensor is an optical sensor, and the mark member is a lattice sheet.

  According to the air-driven impact tool of the present invention, the mark member is provided with a plurality of perforations, and these perforations are arranged so as to cross each other in the radial direction to constitute these sections.

  According to the air driven impact tool of the present invention, the main body is provided with a separate operation section electrically connected to the calculation processing unit, and the operation section has a display section.

  According to the air driven impact tool of the present invention, the operation section is provided with a separate warning device that is electrically connected to the calculation processing unit, and a preset torque value can be set by the calculation processing unit. If the calculated torque value is greater than or equal to the preset torque value, the warning device is activated.

  According to the pneumatically driven impact tool of the present invention, at least one swivel part is provided in the rotating part, and each whirling block has at least one pivoting part pivotally attached to the swivel part. It is only possible to turn around the part.

  According to the air driven impact tool of the present invention, it is possible to clearly know the torque value at the time of actual operation, the user can know the appropriate torque value of the driven object, and the overload Therefore, the driven object is not damaged, and it is possible to ensure the safety of the user.

It is a perspective view which shows the air drive impact tool with a torque measurement function which concerns on one Embodiment of this invention. It is a disassembled perspective view which shows the air drive impact tool with a torque measurement function which concerns on one Embodiment of this invention. It is side surface sectional drawing which shows the air drive impact tool with a torque measurement function which concerns on one Embodiment of this invention. It is a figure which shows the coding of the air drive impact tool with a torque measurement function which concerns on one Embodiment of this invention.

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

  Please refer to FIG. 1 to FIG. An air-driven impact tool 1 with a torque measurement function according to an embodiment of the present invention includes a main body 2, a transmission shaft 23, and a torque measurement unit 24.

  Inside the main body 2, a rotation mechanism 21 and a rolling member 22 are provided. The whispering member 22 is provided with at least one whirling block 221 and a rotating part 222 connected to each whirling block 221. Each whirling block 221 and the rotating unit 222 are synchronized with the rotating mechanism 21. The transmission shaft 23 is provided so as to pass through each of the rolling blocks 221 and can be intermittently driven by each of the rolling blocks 221. The torque measurement unit 24 includes a mark member 25 provided with a plurality of sections 252, at least two sensors 26 that measure the mark member 25, and a calculation processing unit 27 that is electrically connected to the at least two sensors 26. Have The mark member 25 rotates in synchronization with the rotation mechanism 21. After each turning block 221 is subjected to a turning impact on the transmission shaft 23 along a certain direction, each turning block 221, the rotating portion 222, and the mark member 25 are rotated in the opposite direction by a reaction force caused by the turning impact. When the mark member 25 rotates in the opposite direction, the calculation processing unit 27 receives information obtained by measuring the degree of rotation of these sections 252 by at least two sensors 26 and responds accordingly. Calculate the torque value.

  Specifically, the mark member 25 is provided with a large number of overlapping coding units 251 arranged in an overlapping manner. Each coding unit 251 has each of these sections 252, some of which are coded in order along the first direction 3. In other words, the coding contrast table is set up by the different characteristics of each section 252. Thereby, the sections 252 provided along the first direction 3 can be coded in order. When the mark member 25 is rotating in the second direction 4, the calculation processing unit 27 determines whether the second direction 4 is the same as the first direction 3 according to the order in which the coding is received. In the present embodiment, each sensor 26 is an optical sensor, and the mark member 25 is a lattice sheet. That is, a plurality of perforations 253 are provided in the mark member 25, and these perforations 253 are arranged so as to cross each other in the radial direction to constitute these sections 252. Thereby, it is possible to measure by each sensor 26.

  Specifically, as shown in FIG. 4, the inner and outer circles in the radial direction of the mark member 25 each have six perforations 253. The coding is set to 1 in the case of the section 252 having one perforation 253 in the outer circle, and the coding is set to 2 in the case of the section 252 having one perforation 253 in the inner and outer circles. The coding is set to 3 in the case of the section 252 in which one perforation 253 is provided in the circle, and the coding is set to 4 in the case of the section 252 in which the inner and outer circles are not provided with the perforation 253. When the first direction 3 is clockwise, since the coding units 251 are arranged in the order of 1 → 2 → 3 → 4, the calculation processing unit 27 receives the coding in the order of 4 → 3 → 2 → 1. It is possible to know that the second direction 4 in which the mark member 25 is rotating is the counterclockwise direction. The at least two sensors 26 are preferably located on one extension along the radial direction of the mark member 26 opposite to the mark member 25 and measure changes in these sections 252 synchronously. Of course, in addition to determining the rotation direction, it is also possible to measure the number of rotations of the rotation mechanism 21 based on the coding change time received by the calculation processing unit 27.

  Next, torque measurement will be described. In the present embodiment, the mark member 25 has six coding units 251 and each section 252 has an angle range of 15 degrees. When the whirling block 221, the rotating part 222, and the mark member 25 are rotating in the clockwise direction, the order of coding received by the coding unit 27 is changed by rotating slightly in the counterclockwise direction due to the reaction force caused by the turning impact. . For example, the order of coding in the clockwise direction when there is no turning impact is 1 → 2 → 3 → 4, but the order of coding in the clockwise direction when there is a turning impact is 1 → 2 → 2 → 3 → 4. It becomes. As a result, when the coding is located in the section 252 where the coding is 3, the rolling block 221 swings and impacts the transmission shaft 23, the mark member 25 rotates counterclockwise, and the section 252 where the coding is 2 To reach. Thereby, the coding unit 27 can calculate an actual torque value. Since different degrees of reaction force are generated by different torques, the mark member 25 reverses to a different degree. That is, the greater the torque, the greater the number of sections 252 that rotate in the reverse direction and pass through. When the mark member 25 has a larger number of coding units 251, the angle range of each section 252 becomes smaller. In other words, when the mark member 25 is divided into a larger number of coding units 251, the torque value that can be calculated by the calculation processing unit 27 becomes more accurate.

  On the other hand, the rotating part 222 has at least one swivel part 2221, each whispering block 221 has at least one pivoting part 2211 pivotally attached to the swiveling part 2221, and each whispering block 221 has each It is preferably swingable about the swivel portion 2221. In the present embodiment, the rotating unit 222 has two swiveling units 2221, the spindle 211 is provided in the rotating mechanism 21, the spindle 211 drives the rotating unit 222 and the mark member 25 synchronously, and the spindle 211 rotates. The portion 222 and the mark member 25 are provided so as to be coaxial. The main body 2 is separately provided with an operation section 5 that is electrically connected to the calculation processing unit, and a display section 51 is provided in the operation section 5. The torque value calculated by the calculation processing unit by the display section 51 is provided. It is preferable that can be displayed. The operation section 5 is provided with a warning device 52 that is electrically connected to the calculation processing unit. The preset torque value can be set by the calculation processing unit, and the torque value calculated by the calculation processing unit is If it is greater than or equal to the preset torque value, the warning device 52 is activated. Thereby, it is possible to effectively prevent the driven object from being damaged. The warning device 52 may be an LED lamp, but, of course, the present invention is not limited to these.

  According to the pneumatically driven impact tool with a torque measurement function of the present invention, it is possible to display the rotation state (for example, rotational direction, rotational speed, torque value, etc.) of the pneumatically driven impact tool during actual use.

  With the display section in the operation section, the user can grasp the actual torque value, and can set a more appropriate driving force (torque) when driving different driven objects. The warning device can warn the user. For this reason, the driven object is not damaged, and the safety of the user can be ensured.

  The present invention is not limited to the above-described embodiment, and various modifications can be made based on the spirit of the present invention, and they are not excluded from the scope of the utility model registration claim of the present invention. .

  The present invention can be applied to an air driven impact tool.

DESCRIPTION OF SYMBOLS 1 Air drive impact tool 2 Main body 3 1st direction 4 2nd direction 5 Operation area 21 Rotating mechanism 22 Rolling member 23 Transmission shaft 24 Torque measurement unit 25 Mark member 26 Sensor 27 Calculation processing unit 51 Display section 52 Warning device 211 Spindle 221 Scattering block 222 Rotating part 251 Coding unit 252 Section 253 Drilling 2211 Pivoting part 2221 Turning part

Claims (10)

A rotation mechanism and a whispering member are provided therein, and the whispering member is provided with at least one whispering block and a rotating portion connected to each of the whispering blocks. A main body in which each of the whirling blocks and the rotating portion are synchronized with the rotating mechanism;
A transmission shaft which is provided so as to be inserted through each of the rolling blocks, and can be driven intermittently by each of the rolling blocks;
A mark member provided with a plurality of sections; at least two sensors for measuring the mark member; and a calculation processing unit electrically connected to the at least two sensors, wherein the mark member is rotated. A torque measurement unit that rotates synchronously with the mechanism;
In air driven impact tool with torque measurement function including
After impacting the transmission shaft along the direction in which each of the rolling blocks is swiveled, each of the rolling blocks, the rotating portion, and the mark member are rotated in the opposite direction by the reaction force of the swiveling impact, and the calculation is performed. The processing unit confiscates information obtained by measuring the degree of rotation of the sections by at least two sensors when the mark member rotates in the opposite direction, and a corresponding torque value. An air-driven impact tool with a torque measurement function characterized by calculating   The air driven impact tool with a torque measuring function according to claim 1, wherein the rotating mechanism is provided with a spindle, and the spindle drives the rotating portion and the mark member synchronously.   The air driven impact tool with a torque measuring function according to claim 2, wherein the spindle, the rotating portion, and the mark member are provided coaxially.   2. The pneumatically driven impact tool with a torque measuring function according to claim 1, wherein the at least two sensors are positioned on one extension line along a radial direction of the mark member so as to face the mark member. .   The mark member is provided with a plurality of overlappingly arranged coding units, and each of the coding units has the sections that are partly coded in order in the first direction. When the mark member is rotating in the second direction, it is determined whether the second direction is the same as the first direction according to the order in which the calculation processing unit confers coding. The air driven impact tool with a torque measuring function according to claim 1.   The air driven impact tool with a torque measuring function according to claim 1, wherein each of the sensors is an optical sensor, and the mark member is a lattice sheet.   The torque according to claim 6, wherein the mark member is provided with a plurality of perforations, and the perforations are arranged so as to intersect each other in a radial direction to form the sections. Air driven impact tool with measurement function.   The pneumatic drive with torque measurement function according to claim 1, wherein the main body is provided with a separate operation section electrically connected to the calculation processing unit, and the operation section includes a display section. Impact tool.   In the operation section, a warning device that is electrically connected to the calculation processing unit is provided separately, a preset torque value can be set by the calculation processing unit, and the torque value calculated by the calculation processing unit is 9. The pneumatically driven impact tool with a torque measuring function according to claim 8, wherein the warning device is activated when the torque value is greater than or equal to a preset torque value.   At least one turning part is provided in the rotating part, and each of the rolling blocks has at least one pivoting part pivotally attached to the turning part, and turns around each turning part. The air driven impact tool with a torque measuring function according to claim 1, characterized in that only that is possible.

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