JPH032601A - Measuring tool for control panel - Google Patents

Abstract

PURPOSE:To measure the size and the central position of a part on a control panel by providing a knob, a pair or jaws which are moved right and left with a pinion rack, and a scale which can be pulled out in the main body of the scale. CONSTITUTION:A measuring tool 1 is constituted of a main body 11, a main graduation 12, a knob 13, jaws 14A and 14B, a center mark 15, a scale 16 and the like. When the knob 13 is rotated, a pair of the right and left jaws 14A and 14B are slid by the same stroke on the right and left directions with a specified pinion rack with the center mark 15 as the center. The scale 16 is housed in the winding part in the main body so that the scale can be pulled out. In measurement, at first, the scale 16 is brought into contact with the reference surface of the control panel, and the outer surface of the part to be measured is held with the inner sides of the right and left jaws 14A and 14B. The outer sizes of the part are measured with the main graduation 12. For the position of the center of the part, the value of the scale 16 is read through a window 17.

Description

[Detailed Description of the Invention] [Object of the Invention] (Industrial Application Field) The present invention relates to a control panel measuring tool used for inspection of control panels, particularly for measuring dimensions of attached parts and measuring the center position of attached parts. It is.

(Prior art) Fig. 8 shows a general external view of a control panel. In control panel manufacturing, can manufacturing and assembly work are performed based on manufacturing drawings.
During this process, an external dimensional inspection is performed.

In the external dimension inspection, it is necessary to confirm whether the external dimensions of the component and the center position of the component are as shown in the drawing, and to display the position.

Is it possible to measure the external dimensions of a part using conventional measurement methods? It! 1, the detection of the center position of the parts, and the position measurement of the control panel relative to the reference plane are performed using scales and partial calculations.

(Problems to be Solved by the Invention) However, the conventional external dimension inspection method described above has the following problems.

α) When measuring the external dimensions of a part, the corners of the part are often chamfered and rounded for the external appearance. Since we are measuring on top of that, ill!I
Constant work efficiency and heavy work efficiency ■ Appearance dimensions are al! for detecting the center position of parts! After I is determined, half of the ii1'l constant value is calculated, measured again using a scale, etc., and the center position is displayed, which may lead to a total error of 1111'l or a calculation error.

0 When setting the mounting position on the control panel surface to 1ill, set the center position display section to 11111 from the reference surface of the panel.
1, measurement errors are likely to occur.

O) When determining the external dimensions of parts, especially for circular articles such as lamps, use auxiliary tools.
The scribing work must be performed after achieving parallelism between the top and bottom, which requires skilled technique.

0 There are many parts to be installed on the control panel, and depending on the installation location, two major tasks or work at heights are required, which poses problems in terms of work efficiency and safety measures.

The present invention has been made in consideration of the above two problems, and improves the measurement accuracy of dimensional inspection of control panels, as well as improves al! The objective is to provide a rational Jl fixture for control panels that reduces the number of personnel required and improves work efficiency.

[Structure of the invention]

(Means and effects for solving the problem) The present invention includes a pinion gear rotated by a knob,
It meshes with this pinion gear and moves left and right ΔJ/.

A base with a pair of rank gears that slide in rows.

A pair of jaws that are connected to this rack geared base and move symmetrically around the center mark, a viewing window for reading the main scale graduation, center mark, and scale graduation, and a knob shaft that rotates the pinion gear pass through. LiI for a control panel, which has a main body with a hole and a groove for guiding a base with a pair of rack gears, and a removable scale that is stored in a winding part inside the main body and whose scale can be read through a viewing window.
This fixture is designed to efficiently measure the dimensions of parts attached to a control panel and the center position of the parts.

(Example) An embodiment of the present invention is shown in FIG.

FIG. 1 is an external view of the measuring instrument 1, and the measuring instrument 1 is composed of a main body 11, a main scale graduation 12, a knob 13, gauges 14A and 148, a center mark 15, and a scale I6.

By rotating the knob 13, the left and right pairs of jaws 14^, 14B slide along the main scale scale 12 with the same stroke left and right about the center mark 15.

FIG. 2 shows the measurement state of the measuring tool according to the present invention.
First, place the scale 16 on the reference surface of the control panel, and sandwich the outer surface of the part between the inner edges of the left and right jaws 14A and 1.4B.

As a result, the external dimensions of the parts are 14A on the left and right,
8 depending on the dimensions of the main scale scale 12 sandwiched inside 14B.
1 can be determined, and the center position of the part can be measured by reading the value of the scale 16 through the viewing window 17 located on the line of the center mark ]5.

FIG. 3 is an exploded view showing the detailed structure of the measuring tool 1 according to the present invention. The knob 13 has a pinion gear 1.31 and a connecting pin 132.
Base 141 with rack gears for each of 4A and 14B
They are interlocked.

Main body 11 is upper I! +11 and a main body base 112, and the upper lid 111 has a hole 11 into which a connecting pin 132 can be inserted.
A thrift IIIA in which the fixing metal fittings between 1C, 14A and 14B, and each rack gear mount 141 are movable.

111B are provided laterally symmetrically, and a main scale scale 12 is provided on the surface thereof.

In addition, a center mark 15 is displayed in the center of the upper lid 111, and a viewing window 1 is displayed on the same line as the center mark 15.
7 is provided, and a through hole for a scale 16 is provided on one end surface of the upper part 11].

A center mark 15 is also displayed on the main body base 112 at a position that coincides with the center mark 15. Further, inside the main body, grooves 112A and 1128 are provided in parallel in which both rack gear bases 141 can slide.

The scale 16 is provided inside the main body base 112 and includes a mechanism capable of being wound up by a winding section 161.

The above components are assembled in the following steps.

(G) Fix the connecting pin 132 to the knob 13, and after inserting the connecting pin 132 into the hole 11 and C of the upper cover 111, fix it to the pinion gear 13.

■ A main scale scale 12 is provided on the upper lid 111.

(3) Base 1 with rack gear attached to pinion gear 131
41 on the left and right, and the upper Mill slit IIIA.
, 111B to fix the doors 14A and 14B to the left and right rank gear bases 141, and also attach the top lid 11.
1 slit 111A, inside IIIB 14A,
Allow 14B to slide left and right.

0) Attach the winding part 161 to the main body base 112 so that the scale 16 can be taken in and out.

(c) Attach the top cover 111 to the main body base 112, and connect the grooves 112A and 112B of the main body base 112 to the top 14A.
, 1413 so that each rank geared base 141 can slide.

In the measuring tool 1 configured as described above, when the knob 13 is turned counterclockwise, the pinion gear 131 is connected to the pinion gear 131 via the connecting pin 132.
rotates to the left, and in conjunction with this, both rack gear bases 141 slide with the same stroke, and the gap between the left and right jaws 14A and 14B fixed to this opens, and the sliding amount at this time is equal to the amount of the upper lid Ill. Main scale scale 1
Read by 2.

Similarly, when the knob 13 is turned clockwise, the pinion gear 131 rotates clockwise via the connecting pin 132, and in conjunction with this, both rack gear bases 141 slide in a direction that closes the left and right jaws 14A and 14B. move it to

At this time, the left and right wheels 14A and 14B move in symmetrical positions with the center mark 15 as the center.

Furthermore, by aligning one end of the scale 16 with the reference surface of the control panel and reading the constant value 611 on the scale 16 through the viewing window 17, the center position of the component attachment can be measured.

Other embodiments of the invention are shown in FIGS. 4-7.

Reference numeral 18 shown in FIG. 4 is the door 14A in FIG.

14B with a vernier scale 181 added, for example, one scale I of the main scale scale 12 as the vernier scale 181.
By using 9 divisions of n+m divided into 10 equal parts, measurement in units of O, 1, on is possible.

In Figure 5, an auxiliary tool 19 with a 75-shape shape and an auxiliary scale +91 at one end that matches the main scale scale 12 is attached to the mount 14. By using the auxiliary tool 19, it is possible to measure parts with large dimensions. Become.

Fig. 6 shows a case where an auxiliary pin 182 is provided on the jaw 18.
By using the auxiliary pin 182, the inner diameter of the component mounting hole can be adjusted! 11q constant becomes easy.

Further, in FIG. 7, magnets 112C and 1120 are attached to both ends of the back surface of the main body base 112, which allows them to be attached to the surface of the control panel during measurement, making it easier to hold the measuring tool 1 during measurement.

〔Effect of the invention〕

As explained above, the measuring instrument of the present invention is equipped with a pair of scales that can be moved left and right by a pinion rack in the main body that has a main scale scale, and a scale that can be pulled out and stored inside the main body. By sandwiching the upper mounting part, it becomes possible to efficiently measure the dimensions and center position of the control panel mounting part without performing preliminary work such as marking.

[Brief explanation of the drawing]

FIG. 1 is an external view showing an embodiment of the measuring tool according to the present invention;
FIG. 2 is a diagram showing a 1llll11 steady state using this measuring tool, FIG. 3 is an exploded view showing the allllllll definite structure of FIG. 1, and FIGS. 4 to 7 show other embodiments of the present invention. The figure shown,
FIG. 8 is a diagram showing an example of a control panel to be measured. ■...R]ri determination 11...Body 111...Top lid 111A, IIIB...Slit 111C...Hole 112...Body base 112A, 112B...Groove 1], 2G, 1120. ... Magnet 12 ... Main scale scale 13 ... Knob 131 ... Pinion gear 132 ... Connection pin 1.4A, 14B ... Mount 141 ... Base with rack gear 15 ... Center mark 16 ...・Scale 161... Winding part 17... Peep window 18... Improved scale 181... Vernier scale 182... Auxiliary pin 19... Auxiliary tool 191... Auxiliary scale

Claims (1)

[Claims] A pinion gear rotated by a knob, a pair of bases with rack gears that mesh with the pinion gears and slide in parallel to the left and right, and a pair of bases with rack gears that are coupled to the bases with rack gears and move symmetrically around a center mark. a main scale graduation, a center mark, a viewing window for reading the scale graduation, a hole through which the axis of a knob for rotating the pinion gear is passed, and a groove for guiding the pair of bases with rack gears; A measuring tool for a control panel, comprising a scale that is housed in a winding part inside the main body and that can be pulled out and whose scale can be read through the viewing window.