JPS5911845B2 - Coordinate analysis machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides an X-
The present invention relates to a coordinate analyzer for measuring distance in the Y coordinate axis direction.

In the conventional coordinate analyzer, as shown in FIGS. 8 to 10, the Y rail 2 and the casing 6 of the X cursor fixing fine movement mechanism 4 are each separately fixed to the X cursor 8 with screws. There is.

That is, the casing 6 is fixed to the X cursor 8 by screws 10, and the Y rail 2 is fixed to the X cursor 8 by screws 12 via brackets 14 and members 16. Therefore, in order to repair or adjust the mechanism for remotely controlling the X cursor fixing fine movement mechanism 4 inside the casing 6 and the mechanism 4 described above inside the Y rail 2, the Y rail 2 and the casing 6 must be removed from the X cursor 8. In order to remove the Y rail 2 and the casing 6 from the X cursor 8, there is a drawback that the operation is troublesome. Furthermore, when the casing 6 and the Y rail 2 are separated, the cursor fixed fine movement mechanism 4 on the casing 6 side and the mechanism for operating the fixed fine movement mechanism 4 on the Y rail 2 side are disconnected. Issue 5: There was a flaw in that it was not easy to handle.

Moreover, the connection part with the casing 6 is shown in the X cursor 8,
Since a connecting portion with the Y rail 2 is provided, the connecting portion becomes larger in the lateral direction, resulting in an unsightly design. 30 The present invention is aimed at eliminating the above-mentioned defects, and is characterized in that the Y rail 2 is pivotally connected to a casing 6, and the casing 6 is detachably fixed to the X cursor 8. It is.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The structure of the present invention will be described in detail below with reference to embodiments shown in the accompanying drawings.

22 is a drawing board, and 24 is a rail member 26 on the upper edge of the drawing board 22.
A shaft 28 is rotatably installed at one end of the X-rail, which is fixed via an X-rail, and a shaft 30 is installed at the other end.
has been erected.

A belt pulley 32 is fixed to the shaft 28, and a belt pulley 34 is rotatably fitted to the shaft 30. Reference numeral 36 denotes an x-cursor movably connected to the X-rail 24 via rollers 38, and both ends of a belt 40 are fixed to both ends of the x-cursor.

The belt 40 is stretched around the belts 32 and 34 with an appropriate tension. 42 is an X encoder that converts the rotational movement of the shaft 28 into a pulse signal, and is fixed to one end of the X rail 24, and a gear 44 fixed to the input shaft of the X encoder 42 is fixed to the forward axis 28. It is meshing with the gears that are

Reference numeral 46 denotes a casing that is removably fixed to the side of the x-cursor 36 by bolts 48, and a shaft 50 is rotatably installed on this casing in a direction parallel to the longitudinal direction of the X-rail 24. .

A cylindrical body 52 has a thread formed on its inner circumferential surface, and the thread is engaged with a thread formed on the outer circumferential surface of the shaft 50.

Reference numeral 54 designates a lower swing arm, and a tube portion 54a formed on one side of the lower swing arm fits into the cylindrical body 52 and is fixed to the cylindrical body 52 with a screw 56.

Reference numeral 58 denotes a swinging arm, on one of which a pair of tube portions 58a and 58b are formed which face each other with an appropriate interval. The tube portions 58a and 58b are fitted freely, and movement of the tube portions 58a and 58b along the longitudinal direction of the cylinder body 52 is restricted by both side surfaces of the tube portion 54a.

Brake shoes 60, 62 are fixed to the other ends of the upper and lower swinging arms 54, 58, and the brake shoes 560, 6
2 are opposed to each other with a projection 24a formed over the entire length of the X rail 24 in the longitudinal direction sandwiched therebetween. Numerals 64 and 66 are plate members whose upper ends are fixed to both sides of the upper swinging arm 58 by screws, respectively.
A shaft 683 is rotatably installed between them.

A cam portion 68a having a square cross section is formed on the shaft 68,
The cam portion 68a is in contact with the lower surface of the lower swing arm 54. 70 is a rotating body fixed to one end of the shaft 68. A shaft portion 72 is integrally formed with this, and a wire rope 74 is connected to the open end of the shaft portion 72.

A coil spring T6 urges the swinging arms 54 and 58 in a direction that increases the distance between the brake shoes 60 and 62. 78 is a tube in which the wire rope 74 is slidably placed, and the tube 78 is connected via a connector 80 to a member 82 that is integral with the plate member 64.

84 is a compression coil spring disposed between the shaft portion 72 and the member 82, and 86 is a support shaft fixed to the casing 46 in a direction parallel to the longitudinal direction of the x-rail 24. V1 Lower side walls 88 of bracket 88 on both ends of this
a and 88b are rotatably connected via ball bearings 90 and 92.

One end of a Y rail 94 is fixed to the upper part of the bracket 88. The other end of the Y rail 94 is movably mounted on a rail 96 fixed to the lower edge of the drawing board 22 via tail rollers. A shaft 98 is rotatably installed at one end of the Y rail 94, and a shaft 100 is installed at the other end. The shaft 100 has rope pulls 102, 104.
is rotatably fitted, and a belt tab 106 is fixed. The shaft 98 has one lobe 108, 11.
0 and belt top 112 are rotatably fitted. 1
14 is a Y cursor movably connected to the Y rail 94 via rollers 116, 118), to which a belt is fixed, and the belt has an appropriate tension between the rollers 106, 112. It's being passed around.

A balance weight 124 movably disposed along the Y rail 94 and the Y cursor 114 are attached to the ropes stretched between the pulleys 102, 104 and 108, 110.
are connected. A reading head 128 is fixed to the Y cursor 114, which mainly consists of a magnifying glass 126 on which a crosshair indicator is formed. 130 is a Y encoder, and a gear 132 fixed to its input shaft meshes with a gear fixed to the shaft 98.

134 is a support plate fixed to the Y rail 94;
A shaft 136 is rotatably supported by this, a bolt 138 is fixed to the lower end of the shaft 136, and a bolt 138 is fixed to the upper end of the shaft 136.
A fine movement operation member 140 is fixed.

Reference numeral 142 denotes a shaft support member fixed to one end of the Y rail 94, on which a shaft 144 is rotatably supported.
A pulley 146 is fixed to one end, and a flexible rotation transmission member 148 is connected to the other end.

The member 148 is connected to the shaft 50. A wire rope 152 is stretched between the pulley 14S and a pulley 150 rotatably supported on the other end of the Y rail 94-, and the wire rope 152
It is wound several times around 8. A sliding plate 154 is slidably disposed on guide surfaces 156 and 158 formed on the upper surface of the plate member, and a rising portion 15 formed at one end of the sliding plate is provided.
A circular cam 160 is arranged at 4a.

The circular cam 160 is rotatably attached to a top plate 164 fixed to the plate 134 by an eccentric shaft 162. 16
6 is a brake operating lever, which is fixed to the cam 160.

The other end of the tube 78 is connected to one end of the Y rail 94, and the wire rope 74 inside the tube 78 is
It is connected to the sliding plate 154. 168 is a counter, 170 is an auxiliary Y rail, one end of which is movably connected to the X rail 24 via the X cursor, and the other end is placed on the upper surface of the rail member 96 via a tail roller. ing.

The rail 170 is connected to the Y rail 94 by connecting members 172 and 174. 176 is a command keyboard attached to the auxiliary Y rail 170.

Next, the operation of this embodiment will be explained.

When the lever 166 is rotated, the cam 160 is rotated, and the sliding member 154 is moved in the direction of the arrow, the shaft portion 72 (see FIG. 4) swings and the shaft 68 rotates.

Due to this rotation, the cam portion 68a of the shaft 68 rotates around the swing arm 54.
Apply visual pressure to the brake shoes 60, 6 with this applied force.
2 is crimped onto both sides of the projecting piece 24a, and the casing 46 is fixed to the X rail 24. At this time, the lever 166 is held in the swinging position. Next, when the fine movement operation member 140 is rotated, the pulleys 146 and 150 rotate, and this rotation is transmitted to the shaft 50 via the rotation transmission member 148.When the shaft 50 rotates, it is fixed to the X rail 24. With respect to the swinging arms 54 and 58 in the state, the shaft 50 overflows the X rail 24 and moves in the axial direction, and the Y rail 94 moves slightly to the left or right in FIG. 2. The Y rail 94 and the casing 46 To remove the X cursor 36 from the X cursor 36, simply remove the bolt 48 from the screw hole of the X cursor 36. When attaching the Y rail 94 and the casing 46 to the X cursor 36, it is sufficient to fix the casing 46 at a predetermined position on the X cursor 36 with the bolts and screws 48. When moving in any parallel direction, the X cursor 36 moves along the X rail 24, and the Y cursor 114 moves along the Y rail 94.
The movement amount of 4 is converted into a pulse signal by the XY encoders 42 and 130, and is digitally displayed on the display section of the counter 168. Since the Y rail and the casing can be removed from the X cursor while still being connected, there is no need to readjust the connection relationships between the Y rail and various devices inside the casing, and there are advantages such as extremely easy handling.

[Brief explanation of the drawing]

The figures show preferred embodiments of the invention, with Figure 1 showing the overall plane;
The second side is a plan view of the main part, Fig. 3 is a side sectional view of the main part, Fig. 4 is a side sectional view of the main part, and Fig. 5 is a plan sectional view of the main part.
Fig. 6 is a sectional view of the Y rail, Fig. 7 is a side view of the Y rail, Fig. 8 is a plan sectional view showing the prior art, Fig. 9 is a side sectional view of the same, and Fig. 10 is a side sectional view of the same. It is. 22...Drawing board, 24...X rail, 26...Rail member, 32...One belt knob, 34...One belt knob, 36...X cursor, 42...X encoder , 44... Gear, 46... Casing, 50...
Shaft, 52... Cylindrical body, 54... Lower swing arm, 54a.
... Pipe part, 56 ... Screw, 58 ... Swinging arm, 60,
62... Brake shoe, 64, 66... Plate member, 7
0...Rotating body, 72...Shaft portion, 74...Wire rope, 76...Coil spring, 78...Tube, 8
0...Connector, 84...Coil spring, 86...
・Support shaft, 88...Bracket, 94...Y rail,
96...Rail, 114...Y cursor, 124...
・・Balance weight, 126・・Magnifying glass, 128・
...Head, 130...Y encoder, 132...
Gear, 134... Support plate, 136... Shaft, 140.
... Fine movement operation member, 142 ... Axial support member, 144 ...
- Shaft, 148... Rotation transmission member, 152... Wire rope, 154... Sliding plate, 160... Circular cam,
166...Lever 168...Counter, 170
...Auxiliary Y rail.

Claims (1)

[Claims] 1. The X rail 24, the X cursor 36 movably connected to the X rail 24, the Y rail 94, and the Y rail 9.
4; a mechanism for digitally counting the amount of movement of the reading head 128 along the Y rail 94 and the amount of movement of the X cursor 36 along the X rail 24; 36, and a cam 68a that is screwed onto a first shaft 50 in which a threaded portion is rotatably supported along the X rail 24 and is externally operable.
The casing 46 is releasably pressed onto the X-rail 24 to fix the casing 46 to the X-rail 24 and to move slightly along the first shaft 50 as the first shaft 50 rotates. In this device, one end side of the Y rail 94 is rotatably supported on the casing 46 about an axis parallel to the X rail 24, and the Y rail 94 is rotatably supported on the casing 46. A second shaft 144 is rotatably supported on the side of the second shaft 14, and a fine movement operation member 140 for rotationally driving the second shaft 144 is attached to the second shaft 14.
4, and the second shaft 144 is connected to the first shaft 50 via a rotation transmission member 148.