JP3021333U - Non-contact type measuring device - Google Patents

Abstract

(57) [Abstract] [Purpose] The present invention is intended to provide at low cost a length measuring device capable of accurately measuring a relatively long object. [Structure] A pair of guide rails and a mounting block provided in parallel between the guide rails are provided on the upper surface of the base frame, and a mounting base is movably mounted on the guide rails. An expansion scope is fixed to this mounting base so that the object to be measured on the mounting block can be viewed directly, and the mounting base can be finely adjusted by a movement adjusting device, while a scale unit mounted on the base frame. Is a non-contact type length measuring device in which a digital display board and a mover are provided so that the moving distance of the mover can be displayed on the digital display board.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a non-contact type length measuring device for measuring the length of a long shaft or the like.

[0002]

[Prior art]

 Currently, the instruments for measuring the length are roughly classified into three types: a caliper method, an optical method using a projector and an optical microscope, a pin moving contact type length measuring instrument, and a three-dimensional measuring instrument.

[0003]

[Disadvantages of the prior art]

 However, the caliper method is inexpensive and easy to use, but precise data cannot be obtained, and the optical method is inconvenient because it can measure only a length of about 100 m / m. The instrument measures the distance between the pins by contacting them with grooves or holes, but it is possible to measure the positions of fixed-size grooves and holes, but it is difficult to measure other shapes (for example, curved parts). The pins themselves are prone to bending and error, and the coordinate measuring machine has multiple functions and is too expensive to obtain.

[0004]

[Problems to be solved by the device]

 Therefore, the present invention intends to provide at low cost a length measuring device capable of accurately measuring a relatively long object.

[0005]

[Means for Solving the Problems]

 The present invention will be described in detail with reference to the illustrated embodiment. A pair of guide rails 2 and 2'on the upper surface of a base frame 1 and a V-shape provided in parallel between the guide rails 2 and 2 '. A mounting block 4 provided with a mounting groove 3 having a concave shape, a round shape, or the like is arranged in parallel, and a mounting base 5 is mounted on the guide rails 2 and 2 ′ so that the mounting base 5 can travel freely. -The fixed object 6 on the mounting block 4 is fixed so that the object 7 to be measured can be viewed directly, and the mounting base 5 can be finely adjusted in right and left directions by the movement adjusting device 8, while the base frame 1 The scale unit 9 attached to the display has a digital display board 10 and a mover 11, and the moving distance of the mover 11 can be displayed on the digital display board 10 freely. It can be freely linked with 5.

The magnifying scope 6 can be finely adjusted up and down and back and forth, and can be appropriately finely adjusted according to the size of the object to be measured.

One or a plurality of fastening plates 12 are provided in the mounting groove 3 so that the DUT 7 placed in the mounting groove 3 is fixed so as not to swing at a fixed position. Good to keep. In this case, the shape of the fastening plate should be different from that of the object to be measured.

It is preferable that the ball screw 13 of the movement adjusting device 8 is provided with handles 14 and 14 ′ at both ends thereof so that any of the handles can be adjusted depending on the length of the object to be measured.

Numerals 15 and 15 ′ in the figure are illuminations for illuminating the object to be measured 7 at the tip position of the magnifying scope 6.

[0010]

[Action]

 The present invention is embodied as described above. To use it, an arbitrary position of the DUT 7 is fixed to the mounting groove 3 by the fixing plate 12, and the fixed position (+) of the expansion scope 6 is fixed. It is attached to the end of the DUT 7 by the movement adjusting device 8. Then, the reset button of the scale unit 9 (not shown) is pressed to display 0 on the digital display plate 10, and the magnifying scope 6 is moved to the other side of the object to be measured 7 by the handles 14 and 14 'of the movement adjusting device 8. The distance moved to the end position and matched with the fixed position is displayed on the digital display board 10.

[0011]

【effect】

 According to this plan, a pair of guide rails and a mounting block provided in parallel between the guide rails are provided on the upper surface of the base frame, and the guide rails run on a mount as described above. It can be mounted freely. An expansion scope is fixed to this mounting base so that the object to be measured on the mounting block can be viewed directly. The mounting base can be finely adjusted by the movement adjustment device, while it can be mounted on the base frame. The attached scale unit is equipped with a digital display board and a mover so that the moving distance of the mover can be freely displayed on the digital display board.Since the mover is linked to the mount, it can be used for long shafts, etc. The object to be measured does not come into contact with the magnifying scope and does not oscillate, allowing accurate and easy measurement of dimensions, and providing highly accurate products more quickly and with peace of mind. It can also be made relatively inexpensive.

[Brief description of drawings]

FIG. 1 is a side view of a non-contact type length measuring device according to the present invention.

FIG. 2 is a front explanatory view of the same.

FIG. 3 is an explanatory plan view of the same.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Base frame 2 Guide rail 3 Mounting groove 4 Mounting block 5 Mounting base 6 Enlarged scope 7 Object to be measured 8 Movement adjusting device 9 Scale unit 10 Digital display board 11 Mover

Claims (1)

[Scope of utility model registration request] 1. A pair of guide rails on the upper surface of the base frame.
And a mounting block provided in parallel between the guide rails, a mounting base is movably mounted on the guide rail, and an expansion scope is fixed to the mounting base to mount the mounting block. The upper object to be measured can be viewed directly, and the mounting base can be finely adjusted by the movement adjusting device, while the scale mounted on the base frame
This unit is a non-contact type length measuring device in which a digital display board and a mover are provided so that the moving distance of the mover can be displayed on the digital display board.