CN1147082A

CN1147082A - Graph measuring device

Info

Publication number: CN1147082A
Application number: CN 95121550
Authority: CN
Inventors: 直井弘
Original assignee: Ushikata Mfg Co Ltd
Current assignee: Ushikata Mfg Co Ltd
Priority date: 1994-11-11
Filing date: 1995-11-10
Publication date: 1997-04-09
Anticipated expiration: 2015-11-10
Also published as: KR0163559B1; CN1054685C; JP3011082U

Abstract

A graphic measuring device is provided with the idler wheels respectively in protruding arrangement on both sides of the body so that the body can move along a direction of a horizontal straight line to pass through the horizontal shafts of the main bearings freely retained in rotation on both sides inside the body, a measuring rod which can only be rotated in a certain angle opposite to the straight line direction that a vertical axis inside the body is taken as a center and on a left-right direction of a horizontal plane, a central tracing point of a tracing head lens arranged on the end of the measuring rod, and an encoder of the idler wheels for the measurement of the rotation angle of the horizontal shafts so as to measure the motion quantity in the straight line direction. The rotation part of the encoder inside is fixed on the horizontal shaft. The outside fixed part in axial fixation through two bearing shafts between the rotation parts of the outside fixed part is coaxial and can be freely installed in rotation. Only the rotation direction is restricted between the outside fixed part and the body.

Description

Figure surveying device

The application relates to by making on the outer peripheral lines of the measured figure on the first-class surface level of drawing the mode consistent with tracing point measure measured area of graph, the figure surveying device of line length or coordinate values.

Fig. 2 is the top view of an example of figure surveying device, and Fig. 3 is the cut-open view of the inner horizontal shaft portion of figure surveying device, (Ren) is the whole cut-open view that comprises the roller horizontal shaft section, and (mouth) is the amplification view of encoder section.

Transverse axis 2 adopts following formation: at one end configuration rolling wheel encoding device 4, at the rotating part 4a center fixed rotating disk 4b on the transverse axis 2 of being fixed on of this rolling wheel encoding device 4, roller 3 is fixed on the end, and scrambler 4 and roller are rotatable.

In addition, the other end at transverse axis only disposes roller 3.

The fixed part 4c of rolling wheel encoding device 4 is fixed on the main body 1, for detection level axle 2 between fixed part 4c and rotating part 4a is the rotational angle of roller 3 and opposed to each other detecting element being configured on the fixed part 4c with rotary disk 4b.

At this moment, an end of transverse axis 2 is remained on the main body 1 by two scrambler bearings 7 on the rotating part 4a that is arranged on rolling wheel encoding device 4, and the other end of transverse axis 2 is remained on the main body 1 by a main body bearing 6.

On the length and one end that roller 3 are fixed on structure, must make rolling wheel encoding device 4 each end on the both ends of rotating part 4a that a bearing 7 is respectively arranged.

As mentioned above, because same locational main body bearing 6, two

locational scrambler bearings

7,7 keep a transverse axis, therefore when the center line of these three bearings is not quite identical, cause that transverse axis 2 breaks down, cause that the light rotation on drawings such as paper is had any problem.

In order to prevent this problem, must adjust the center line of three bearings with a lot of times, make them virtually completely consistent,, improve the performance except hindering for this reason, also constitute the reason that cost increases owing to adjusting to increase man-hour.

In order to address the above problem, the application's purpose provides a kind of might as well impenetrability can the raising, only uses 2 maintenances, and needn't increase the installing mechanism of the rolling wheel encoding device of adjusting man-hour thereupon.

In order to address the above problem, in the application's figure surveying device, be equipped with: can move and by the outstanding respectively roller 3 that is configured in the main body both sides of the transverse axis 2 on the main body bearing 6 that can remain on the both sides in the main body 1 freely to rotate along the horizontal linear direction in order to make main body 1, with the Z-axis in the main body 1 is the sounding rod 8 that the relative rectilinear direction in center can only turn an angle in surface level to the left and right, is configured in the center tracing point 9a of the trace head lens 9 on these sounding rod 8 ends; In this device, the rolling wheel encoding device 4 of the rotational angle of detection level axle 2 constitutes in the following manner for the amount of movement of detection of straight lines direction: its inner rotating part is fixed on the transverse axis, outside fixed part by with above-mentioned rotating part between two bearing axial restraints and coaxial and free to rotate the installation, only limit rotation direction between the fixed part in the above-mentioned outside and the main body.

As mentioned above, because transverse axis 2 is 2 maintenances on both ends of relative main body 1, and the fixed part 4c of rolling wheel encoding device 4 is with between the rotating part 4a also being 2 maintenances, so that very well relative to rotating of the rotating part of main body 1, produce the resistance of machinery hardly.

Fig. 1 (A) is the interior view (partial sectional view) of major part of the application's figure surveying device, (B) is its major part outboard profile, (C) is its enlarged drawing.

Fig. 2 is the top figure of an example of figure surveying device.

Fig. 3 is the sectional view of the inner horizontal shaft portion of figure surveying device one example, (A) is the whole cut-open view that comprises the transverse axis part of roller, (B) is the amplification view of encoder section.

Among the figure:

1. main body

2. transverse axis

3. roller

4. rolling wheel encoding device

4a. rotating part

4b. rotary disk

4c. fixed part

4d. bearing

4e. support bar

5. Z-axis

6. main body bearing

8. sounding rod

Fig. 1 is the major part interior view (broken section) of the application's figure surveying device.This device as depicted in figs. 1 and 2, for make main body 1 can move along the horizontal linear direction, by by the outstanding respectively roller 3 that is configured in main body 1 both sides of the transverse axis 2 of both sides main body bearing 6 maintenances free to rotate in the main body 1, with the Z-axis in the main body 1 is the sounding rod 8 that can only turn an angle on horizontal plane about relative rectilinear direction edge, center, is configured in the center tracing point 9a of the trace head lens 9 on these sounding rod 8 ends.

The rolling wheel encoding device of detection level axle 2 rotational angles is set for the rectilinear direction amount of movement that detects this device.This rolling wheel encoding device 4 is by being fixed in inside that rotating part 4a on the transverse axis 2 and rotation direction be made of main body 1 fixing fixed part 4c.

Fixed part 4c as shown in Figure 1, be by the free to rotate but axial restraint ground configuration of two bearing 4d, one end that will have certain flexible cramp bar 4e is fixed on the outside by silicon rubber 4f, and the other end of pole is fixed on the main body 1, only retrains rotation direction.

Rotating part 4a is fixed on the transverse axis 2, fixed part 4c by being installed with at the axial restraint and the coaxial earth's axis free to rotate at two bearing 4d between transverse axis 2 and the fixed part 4c.

Because the structure of the rotational angle test section of rolling wheel encoding device 4 is identical with prior art, so omit its explanation.

Because transverse axis 2 relative main bodys 1 are kept by main body bearing 6 respectively at both ends, and the rotating part of the fixed part 4c counter roller scrambler 4 of rolling wheel encoding device 4 remains on two bearings of rolling wheel encoding device 4 inside, is very easy to so carry out mechanical adjustment for keep at any 2.

The bearing 4d of rolling wheel encoding device 4 is with different by the scrambler bearing 7 that like that transverse axis 2 is remained on the main body 1 in the prior art example, do not make transverse axis 2 remain on function on the main body 1 owing to do not have, and the installation site of rolling wheel encoding device 4 can not be subjected to the end qualification of transverse axis 2, so can be configured on the position of design.

Claims

1. figure surveying device, be equipped with: can move and the outstanding respectively roller that is configured in the main body both sides of transverse axis of main body bearing by can remaining on both sides in the main body freely to rotate along the horizontal linear direction in order to make main body, with the Z-axis in the main body 1 is the sounding rod that the relative rectilinear direction in center can only turn an angle on surface level to the left and right, is configured in the center tracing point 9a of the trace head lens 9 on this sounding rod end; It is characterized in that: being constructed as follows of the rolling wheel encoding device of the rotational angle of detection level axle for the amount of movement of detection of straight lines direction: its inner rotating part is fixed on the transverse axis, the outside fixed part by with above-mentioned rotating part between two bearings to install fixing and coaxial and free to rotately, only limit rotation direction between the fixed part in the above-mentioned outside and the main body.

2. figure surveying device as claimed in claim 1 is characterized in that: only limit the above-mentioned rollers scrambler the fixed part gyratory directions be support bar.