JP2015152400A - Length measurement instrument - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a length measurement instrument which is capable of appropriately measuring a length of a workpiece when being used in combination with a processing device.SOLUTION: A length measurement instrument 10 includes: a slide rail 11 fixed integrally with a workpiece processing device 50; a digital length measuring machine 30 which is installed slidably on the slide rail 11 and includes a length measuring unit for measuring an extent of movement along the slide rail 11, a display unit 33 for displaying a measurement value of the length measuring unit, and a reset button 34 for resetting the measurement value of the length measuring unit; and a workpiece contact arm 40 which is slid along the slide rail 11 integrally with the digital length measuring machine 30 and includes a workpiece contact part 42 to be brought into contact with a workpiece installed to be processed.

Description

  The present invention relates to a length measuring device that measures the length of a workpiece processed by a processing device.

  Conventionally, a length measuring device for measuring the length of an article has been provided. For example, a length measuring device disclosed in Patent Document 1 below is known. In Patent Document 1, a moving body that is movable in the length direction of an object to be measured placed on a base is provided with an abutting portion that comes into contact with an end surface of the object to be measured. The structure which measures the length of a to-be-measured object by measuring the distance with the edge part of this is disclosed.

  On the other hand, a processing apparatus that performs various processes such as cutting, drilling, and drawing on a workpiece that is a workpiece is widely known. In such a processing apparatus, an accurate cutting position with respect to the work, In order to perform machining at a machining position such as a drilling position or a drawing position, it is necessary to accurately measure the distance from a desired location of the workpiece to the machining position.

JP 2002-122422 A

  However, the length measuring device disclosed in Patent Document 1 is not assumed to be used in combination with a processing device, and for the work of measuring the length of a workpiece processed by the processing device up to the processing position. Not suitable.

  This invention is made | formed in view of such a subject, and when using it in combination with a processing apparatus, it aims at providing the length measuring apparatus which can measure the length of a workpiece | work appropriately. .

  In order to solve the above-mentioned problem, a length measuring device according to the present invention is used in combination with a workpiece processing device, and in the length measuring device for measuring the length of a workpiece processed by the workpiece processing device, the workpiece processing device. A slide rail that is fixed to the slide rail, a digital length measuring device that is slidably mounted on the slide rail, a length measuring unit that measures the distance moved along the slide rail, and A digital length measuring device having a display unit for displaying a measured value, and a reset button for resetting a measured value by the length measuring unit, and slides along the slide rail integrally with the digital length measuring device. A workpiece abutting arm having a workpiece abutting portion that abuts against the workpiece installed for processing. .

  Further, the measurement method according to the present invention is the measurement method for measuring the length of the workpiece using the length measuring device, wherein the workpiece contact portion is moved to a machining position by the workpiece machining apparatus or a predetermined distance from the machining position. An origin setting step of resetting a measurement value by the length measuring unit with the reset button in a state where the workpiece is positioned and setting an origin, and setting the workpiece at a machining position, and setting the workpiece contact portion to a predetermined position of the workpiece A length measuring step of measuring a length from the processing position or a position at a predetermined distance from the processing position to the predetermined position of the workpiece by contacting the position.

  According to the length measuring device according to the present invention, it is possible to appropriately measure the length of a predetermined portion of a workpiece processed by the processing device.

FIG. 1 is a perspective view of a length measuring device according to an embodiment of the present invention. FIG. 2 is a front view of the length measuring device according to the embodiment of the present invention. FIG. 3 is a partially enlarged plan view of the length measuring device according to the embodiment of the present invention. FIG. 4 is a perspective view for explaining a usage mode of the length measuring apparatus according to the embodiment of the present invention. FIG. 5 is a perspective view for explaining a usage mode of the length measuring apparatus according to the embodiment of the present invention.

  Hereinafter, a length measuring device according to an embodiment of the present invention will be described with reference to the drawings. In this embodiment, a length measuring device that measures the length of a workpiece when the workpiece, which is a workpiece, is cut into a predetermined length by a cutting device, which is a processing device, will be described.

  FIG. 1 is a perspective view of a length measuring device according to the present embodiment, showing a state where the length measuring device is installed in a cutting device. FIG. 2 is a front view of the length measuring device according to the present embodiment. FIG. 3 is a partially enlarged plan view of the length measuring device according to the present embodiment, and shows an enlarged portion of the digital length measuring device and the workpiece contact arm.

  The length measuring device 10 includes a slide rail 11, a slide main body 20, a digital length measuring device 30, and a workpiece contact arm 40. The slide rail 11 extends substantially in the left-right direction in FIG. 1, and the slide body 20 is slidably installed with respect to the slide rail 11.

  The digital length measuring device 30 is integrally fixed to the slide body 20 and can measure the distance that the slide body 20 has moved along the slide rail 11. The length measurement by the digital length measuring device 30 is performed by detecting the magnetic strip provided on the slide rail 11 along the sliding direction by the magnetic sensor of the digital length measuring device 30.

  One end of the work contact arm 40 is also fixed integrally to the slide body 20, and can be slid along the slide rail 11 together with the slide body 20. The workpiece contact arm 40 is an elongated plate-like rod-shaped member that extends from the slide body 20 toward the cutting position of the cutting device 50.

  The slide rail 11 includes a rail fixture 12, and the slide rail 11 is fixed integrally with the cutting device 50 by fixing the rail fixture 12 directly or indirectly to the cutting device 50. On both sides of the slide rail 11, slide grooves 13 are formed along the slide direction.

  The slide main body 20 includes an arm holding portion 21 that holds the workpiece contact arm 40 and a slide guide member 25 for slidably attaching the slide main body 20 to the slide rail 11.

  The arm holding portion 21 includes an arm support shaft 22 that extends through a shaft insertion hole 46 of the workpiece contact arm 40 described later and extends in the slide direction, and a spring 23 through which the arm support shaft 22 is passed. The spring 23 is installed in a contracted state, and due to its elastic force, the spring 23 comes into contact with the periphery of the shaft insertion hole 46 of the work contact arm 40 and directs the work contact arm 40 toward the processing position in the slide direction. It is configured to be energized.

  Therefore, when the workpiece contact arm 40 receives a force in a direction away from the machining position in the slide direction, the workpiece contact arm 40 can move slightly against the elastic force of the spring 23 ( In this embodiment, about 10 mm), when this force is released, it returns to its original position.

  The slide guide member 25 includes slide groove insertion portions 26 (not shown) that are inserted into the slide grooves 13 on both sides of the slide rail 11 from both sides, and the slide main body 20 is configured to slide slide rails via the slide guide member 25. 11 is slidably attached to 11. The slide guide member 25 includes a slide fixture 28 for fixing the slide body 20 so that the slide body 20 cannot slide with respect to the slide rail 11.

  Therefore, in this embodiment, the operator can manually slide the slide main body 20 to a desired position on the slide rail 11 and operate the slide fixing tool 28 to fix the slide main body 20 to the position. As described above, if the slide main body 20 is configured to be moved manually, a drive mechanism, a drive control device, and the like are unnecessary, and a low-cost and inexpensive length measuring device can be provided.

  The digital length measuring device 30 includes a distance measuring unit 31 (not shown) that measures the slide distance of the slide body 20 relative to the slide rail 11, a display unit 33 that displays the measurement values measured by the distance measuring unit 31, and a distance measuring device. And a reset button 34 for resetting the measurement value of the unit 31. Since the digital length measuring device 30 is driven by a built-in battery (not shown) and does not need to be connected to a power source with a cord, the length measuring device 10 can freely select an installation place without wiring.

  Here, the length measuring device 10 is for measuring the distance from the processing position of the workpiece to a predetermined portion of the workpiece to be measured, and the distance measuring unit 31 resets the slide distance by the reset button 34. The distance from the origin is output as a measured value.

  The distance measuring unit 31 measures the direction away from the processing position (substantially right direction in FIG. 1) as the positive direction, and is not the total slide distance of the slide body 20 from the origin but the location where the slide body 20 is currently located. It is configured to display the distance from the origin.

  The workpiece contact arm 40 is an elongated rod-shaped portion extending in the sliding direction, and a rod-shaped portion 41 constituting a workpiece contact portion 42 whose tip on the processing position side contacts the workpiece, and a base side of the rod-shaped portion 41. And a held portion 45 that is a portion held by the arm holding portion 21 of the slide main body 20.

  The length of the rod-like portion 41 can be changed as appropriate, and may be determined according to the configuration of the cutting device 50, the location of the cutting position, and the length of the workpiece to be cut out. The held portion 45 is formed wider than the rod-like portion 41, and a shaft insertion hole 46 (not shown) penetrating the inside in the sliding direction is formed. As described above, when the arm support shaft 22 is passed through the shaft insertion hole 46, the work contact arm 40 is integrally held by the slide body 20.

  The work contact arm 40 is configured to be rotatable around the arm support shaft 22. For this reason, as shown in FIG. 1, the workpiece contact arm 40 usually jumps out onto a workpiece support conveyor 65, which will be described later, and measures the length of the workpiece. It is also possible to revolve around the workpiece support conveyor 65 by rotating it around 22.

  Next, the configuration of the cutting device 50 in which the length measuring device 10 is installed will be described. In this embodiment, the cutting device 50 cuts the workpiece 5 so as to be cut out at a predetermined length at the cutting position (processing position) while measuring the length by the length measuring device 10. The cutting device 50 includes a cutting machine 51, a base 60, a work fixing member 61, and a work support conveyor 65.

  The cutting machine 51 is installed on a base 60 and includes a rotary blade 52 for cutting a workpiece and an advance / retreat lever 53 for moving the rotary blade 52 between a cutting position and a retracted position. ing.

  The workpiece fixing member 61 includes a uniaxial stage 62 that is installed on the base 60 and sandwiches and fixes the workpiece. The uniaxial stage 62 includes a handle 63 for sliding the stage.

  The workpiece support conveyor 65 includes a large number of conveyance rollers 66 arranged in parallel, and supports the workpieces placed on the conveyance rollers 66 slidably along the slide rail 11. The movement of the work on the work support conveyor 65 can be performed manually, for example, by an operator holding the work with his / her hand.

  As mentioned above, although the structure of the length measuring apparatus 10 and the cutting device 50 was demonstrated, about the procedure at the time of measuring the length of the workpiece | work 5 cut | disconnected by the cutting apparatus 50 with the length measuring apparatus 10, FIG.4 and FIG. This will be described with reference to FIG. 4 and 5 are perspective views for explaining an operation of cutting the workpiece while measuring the length of the workpiece by the length measuring device according to the present embodiment.

  In the present embodiment, the length measuring device 10 is used when cutting the workpiece 5 into a predetermined length, and measures the length from the cutting position (processing position) of the portion of the workpiece 5 to be cut. In cutting the workpiece 5, the operator first resets the measurement value of the length measuring device 10 at the origin.

  Specifically, as shown in FIG. 4, before placing the workpiece 5, the workpiece contact portion 42 of the workpiece contact arm 40 of the length measuring device 10 is positioned at a cutting position by the rotary blade 52 that is a processing position. Then, the operator presses the reset button 34 to reset the measured value of the digitel length measuring device 30 to zero. Thereby, the origin (0 point) of the length measured by the length measuring device 10 is set in a state where the workpiece contact portion 42 is located at the machining position.

  Note that the length measurement origin of the length measuring device 10 is not limited to the case where the workpiece contact portion 42 is located at the machining position, but may be set when the workpiece contact portion 42 is located away from the machining position. For example, when the workpiece contact portion 42 cannot be moved to the machining position due to the structure of the machining apparatus, the structure of the workpiece fixing member 61, etc., it is necessary to set the origin at a remote location.

  At this time, when it is desired to display the length of the workpiece from the machining position (the length from the machining position to the workpiece contact portion 42) as a measured value on the display unit 33, the workpiece contact at the time of setting the origin from the machining position in advance. The length to the contact portion 42 is measured, and when the origin is set, the measured value is not reset to 0, but is reset to the measured value and the measured value is displayed on the display unit 33. It ’s fine.

  Subsequently, the slide main body 20 is slid to the right side in the drawing, and the work contact arm 40 is retracted from the place where the work 5 is installed. At this time, when the slide body 20 is slid, the display unit 33 of the digital length measuring device 30 moves the distance of the slide body 20 from the position shown in FIG. Is displayed.

  Then, the operator moves the slide main body 20 to a position where the measured value of the display unit 33 becomes a desired length value where the workpiece 5 is to be cut out, and is fixed at that position by the slide fixture 28. If it does so, the length from a cutting position to the workpiece | work contact part 42 will become the said desired length. Therefore, in this state, if the workpiece 5 is installed as shown in FIG. 5 and the cutting machine 51 is operated to cut the workpiece 5, the workpiece 5 can be cut to the desired length.

  When the workpiece 5 is cut by the rotary blade 52 of the cutting machine 51, a very large force is applied to the workpiece contact arm 40 through the workpiece 5 to be cut, so that the workpiece contact arm 40 is firmly fixed. If the workpiece contact arm 40 is bent, the workpiece contact arm 40 may be bent or broken, or the slide main body 20 or the like that integrally holds the workpiece contact arm 40 may be damaged.

  On the other hand, in this embodiment, the work contact arm 40 is urged in the sliding direction by the spring 23, and the work contact arm 40 slides against the elastic force of the spring (right direction in the figure). Therefore, the force applied to the workpiece contact arm 40 can be released to prevent damage or the like.

  As described above, the length measuring device 10 according to the present embodiment has been described in detail. However, according to the present embodiment, the length of the workpiece can be appropriately measured when used in combination with the workpiece processing device. In particular, in the present embodiment, by providing the workpiece contact arm 40 for setting the origin of the digital length measuring device 30, it is possible to deal with processing devices and workpieces having various structures.

  The present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the spirit of the present invention. For example, the shape and size of each member constituting the length measuring device according to the present embodiment can be changed as appropriate.

  In the present embodiment, the cutting device has been described as an example of a processing device used in combination with a length measuring device. However, a drilling device that drills a hole in a predetermined location of the workpiece or a predetermined location of the workpiece. Various other processing devices such as a drawing device for drawing a line can be used in combination.

DESCRIPTION OF SYMBOLS 5 Work 10 Length measuring apparatus 11 Slide rail 12 Rail fixing tool 13 Slide groove 20 Slide main body 21 Arm holding part 22 Arm support shaft 23 Spring 25 Slide guide member 28 Slide fixing tool 30 Digital length measuring device 33 Display part 34 Reset button 40 Workpiece Contact arm 41 Bar-shaped part 42 Work contact part 45 Hold part 50 Cutting device 51 Cutting machine 52 Rotary blade 53 Advance / retreat lever 60 Base 61 Work fixing member 62 Single axis stage 63 Handle 65 Work support conveyor 66 Conveying roller

Claims (2)

In a length measuring device that is used in combination with a workpiece processing device and measures the length of a workpiece processed by the workpiece processing device,
A slide rail fixed integrally with the workpiece processing device;
A digital length measuring device installed slidably on the slide rail, a length measuring unit for measuring a distance moved along the slide rail, a display unit for displaying a measurement value of the length measuring unit, and A digital button having a reset button for resetting a measurement value by the length measuring unit,
A workpiece contact arm that slides along the slide rail integrally with the digital length measuring device, the workpiece contact arm having a workpiece contact portion that contacts the workpiece installed for processing;
A length measuring apparatus comprising: In the measuring method which measures the length of the above-mentioned work using the length measuring device according to claim 1,
An origin setting step of setting the origin by resetting the measurement value by the length measuring unit by the reset button in a state where the workpiece contact part is located at a machining position by the workpiece machining apparatus or a position at a predetermined distance from the machining position. When,
The workpiece is placed at a machining position, and the workpiece abutting portion is brought into contact with a predetermined location of the workpiece, so that the machining position or a predetermined distance from the machining position to the predetermined location of the workpiece. A length measurement process to measure the length;
A measurement method comprising:

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