KR200264882Y1 - Automatic position measuring device - Google Patents

Abstract

The present disclosure relates to an automatic position measuring device for manufacturing a joint pipe between pipes previously installed in a ship or the like.

The automatic position measuring device includes a main frame having a measurement reference flange fixed to one flange, a transfer table installed on the main frame so as to be movable up and down, and a left and right turning plate attached to the transfer table to rotate left and right, the left and right pivots. Left and right driving means for driving a plate, the upper and lower turning plate attached to the left and right turning plate, rotates with the left and right turning plate, rotates up and down in the direction orthogonal to the left and right rotating shaft, and is connected to a wire guide arm, the upper and lower turning plate Up and down driving means for driving the wire, the wire contact sensor is installed at the end of the wire guide arm, is drawn out from the wire winding unit installed in the main frame, is passed through the left and right rotation shaft to the wire guide arm, the end of the pipe to be measured A wire connected to the hook for fixing to the flange, and attached to the wire winding part And a wire draw sensor for measuring the length of the drawn wire, and a control unit for receiving signals from the wire draw sensor, left and right rotation angle detection sensors, and up and down rotation angle detection sensors and controlling the left and right driving means and the up and down driving means.

Description

Automatic position measuring device {Automatic position measuring device}

The present invention relates to an automatic position measuring device for measuring the automatic position between the pipe flanges in order to make a connection pipe between the pipes already installed in the vessel. In particular, the present invention relates to an automatic position measuring device in which a wire guide arm is automatically pivoted to simplify the path of the wire and to solve the unevenness of the tension applied to the wire.

First, as an example of the position measuring apparatus used for this purpose, in the Patent Publication No. 9-5006, a position measuring apparatus as shown in FIG.

As shown in the drawing, a conventional position measuring device includes a pedestal 102 for installation on a measurement reference flange surface 101, a feed table 104 provided on a conveying member on upper and lower frames 103 of the pedestal 102, and And a rotating shaft 105 rotatable in a direction parallel to the conveying direction of the conveying table 104, a measuring shaft 106 rotatably installed in a direction orthogonal to the rotation axis center of the rotating table 105, and the measuring shaft ( A wire guide arm 107 rotatably installed around the 106 and first and second angles for measuring the rotation angle of the rotating table 105 and the rotation angle of the measuring shaft 106. A wire draw sensor 111 for measuring the length of the wire 110, which is drawn out from the detection sensors 108 and 109 and the wire guide arm 107 in a tensioned state, and whose end is a measuring point; Is installed in the rotating table 105 in an insulated state, slightly less than the width of the wire guide arm 107 When the groove gap contact sensor 112 and the groove gap contact sensor 112 formed of the large conductor are turned off, the first angle detection sensor 108, the second angle detection sensor 109, and the wire draw sensor 111 are formed. It is provided with the control part 113 which inputs an output value and calculates the position of a measurement point.

A method of using such a conventional position measuring device will be briefly described with reference to FIG. First, the position measuring device is fixed to the flange face 101 of the flange pipe 100 serving as the measurement reference plane. The wire 110 is pulled out from the tip of the wire guide arm 107, and the hook attached to the end of the wire is fixed to the flange surface 119 of the other flange tube 118, which is the surface to be measured. And rotate the upper and lower swivel or the left and right swivel appropriately.

Here, the wire guide arm 107 is turned on when it contacts any of the arm detecting members 116 and 117 of the groove-type contact sensor 112 disposed on both sides, so that the wire guide arm 107 is rotated by a predetermined angle. The wire guide arm 107 is positioned at the center between the opposing sensing members 116 and 117. In this way, when the wire 110 and the wire guide arm 107 are in a straight line, the contact between the wire guide arm 107 and the sensing members 116 and 117 is released, so that the groove gap type contact sensor 112 is turned off. When the signal is output to the control unit 113, based on the signal, the output of the first angle detection sensor 108, the second angle detection sensor 109, the wire draw sensor 111 is input to the control unit 113. do.

Based on the distance or angle data of the wire 110 thus obtained, the relative positions of the plurality of measuring points P4, P5, P6 on the flange face 119 of the flange tube 118 are determined through a predetermined calculation process. Using the position data of the measurement points, the position of the measurement target flange surface 119 is obtained. Based on these data, the design and fabrication of the connection between the two flanges will be made.

However, such a conventional position measuring device does not automatically turn because the left and right pivot shafts are connected to the knob when the wire is frequently changed and the wire is pulled out, so that the friction between the wire and the guide arm is intensified and the tension applied to the wire becomes uneven. Disconnection often occurs, and the wire tension of the vertical motion portion is uneven, so that the accuracy of the sensor is lowered, and an error due to the clearance between the wire guide arm and the dome for rotational movement occurs.

The present invention is intended to solve such a problem, simplifying the path of the wire, the measuring device is automatically turned left and right and up and down by the control unit to reduce the occurrence of errors occurring in the non-uniform tension of the wire, The aim is to provide an automatic position measuring device which ensures precision by eliminating the play between the wire guide arm and the dome.

1 is a block diagram of a conventional automatic position measuring device.

2 is an operation explanatory diagram of a conventional automatic position measuring device.

3 is a front view of an automatic position measuring device according to the present invention.

Figure 4 is an enlarged view of the main portion of the left and right turning plate tension control unit of the automatic position measuring device according to the present invention.

Figure 5 is an enlarged view of the main portion of the up and down turning plate tension control unit of the automatic position measuring device according to the present invention.

※ For the main part of the drawing

100: automatic positioning device for manufacturing connector

110: reference flange 112: mainframe

114: first mounting plate 116: second mounting plate

118: up and down transfer guide 119: transfer table

120: up and down swing plate 122: drive means for up and down swing

124: friction roller for vertical swing 126: vertical rotation angle sensor

127: tension adjustment spring 128: tension adjustment knob

129: up and down swing friction roller rotation axis 130: left and right swing plate

132: drive means for turning left and right 134: friction roller for turning left and right

136: left and right rotation angle detection sensor 137: tension adjustment spring

138: tension adjustment knob

139: left and right swing roller

140: wire guide arm

142: first wire guide roller 144: second wire guide roller

146: wire draw sensor 150: wire hook

152: wire contact sensor 154: wire winding

Automatic position measuring device for measuring the relative position for manufacturing the connection pipe between the pipe flange according to the present invention for achieving the above object, the main frame having a mounting plate fixed to one flange, up and down on the main frame A transport table installed to be movable, the left and right turning plates attached to the transport table to rotate left and right, the left and right driving means for driving the left and right turning plates, the left and right turning plates attached to the left and right turning plates, A vertical turning plate connected to a wire guide arm and vertically rotating in an orthogonal direction, vertical driving means attached to the left and right turning plates and a wire contact provided at an end of the wire guide arm The sensor is drawn out from the wire winding member installed in the main frame, and passes through the left and right rotation shaft. It is withdrawn from the guide arm and has a wire connected to a hook for fixing to the pipe flange to be measured, a wire draw sensor for measuring the length of the wire attached to the wire winding part, and the wire draw sensor and the left and right rotation angles. A signal is received from a detection sensor and a vertical rotation angle detection sensor, and is achieved as a control unit for controlling the left and right driving means and the vertical driving means.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

Figure 3 of the accompanying drawings is a block diagram of an automatic position measuring device for manufacturing a connector according to the present invention.

As shown, the automatic position measuring device for manufacturing the connector according to the present invention is a standard pipe flange (one of the two flanges that are already installed) on one side of the main frame 112 forming the skeleton of the whole device and And mounting plates 114 and 116 to engage. In addition, a wire winding part 154 that houses wires is attached to the main frame. The wire wound on the wire winding part 154 is drawn out through the wire draw sensor 146, passes through the central axis of the left and right turn plate 130, passes the wire guide rollers 142 and 144, and changes direction. It is connected to the hook 150 through the wire contact sensor 152 attached to the wire guide arm 140. The lead length of the wire is measured by the wire draw sensor 146, and the wire guide arm 140 is attached to the upper and lower turn plates 120. In addition, the vertical swing plate 120 is mounted on the left and right swing plate 130, the wire guide arm 140 is capable of turning up, down, left and right.

The up and down swing plate 120 and the left and right swing plate 130 are driven by the up and down swing drive means 122 and the left and right swing drive means 132, respectively, and the drive means are controlled by a controller (not shown). do.

In addition, the driving means 122 and 132 transmit the driving force to the upper and lower turning plate 120 and the left and right turning plate 130 through the friction rollers 124 and 134, the contact between the friction roller and the turning plate It is controlled by the up-down swing friction roller tension control unit and the left-right swing friction roller tension control unit. Details of this part will be described later with reference to FIGS. 4 and 5.

It is preferable that the left and right pivoting plates are provided with a pair of wire guide rollers for receiving a uniform tension even if the wires change direction.

As described above, the wire contact sensor 152 is installed at the end of the wire guide arm 140, and has four contact points for detecting contact with the wire.

Reference numeral 126 that is not described is a vertical rotation angle detection sensor for detecting the rotation angle of the upper and lower turning plate 120, reference numeral 136 is a left and right rotation angle detection sensor for detecting the rotation angle of the left and right turning plate 130.

Figure 4 of the accompanying drawings is an operating state diagram of the upper and lower turning tension adjusting device portion.

As shown, the up and down swing plate 120 receives the driving force from the up and down swing friction roller 124 is connected to the up and down swing drive means (122 of Figure 3), rotates in response to the signal from the controller from the beginning Adjusting the angle consumes excessive time. Therefore, after releasing contact between the up and down swing driving means 122 and the up and down swing friction roller 124, the wire guide arm 140 is quickly and manually adjusted to angle toward the measurement target flange, and then back and down swing plate 120 and the up and down swing friction roller 124 is in contact. In the drawing, the solid line portion is a state in which the up and down swing plate 120 and the up and down swing friction roller 124 are in contact with each other and a driving force is transmitted, and the dotted line represents a state for manually adjusting the release of the contact. For the release of the contact is made by pushing the tension control knob 128, and when the push stops the up and down friction roller 124 by the tension control spring 127 is restored to the driving force to the vertical swing plate 120 Will be delivered. Reference numeral 129, which has not been described, indicates the rotation axis of the friction roller for vertical swing.

Figure 5 of the accompanying drawings is an operating state of the left and right turning plate tension control device portion.

As shown, the left and right pivot plate 130 receives a driving force from the left and right swing friction roller 134 connected to the left and right pivot drive means (132 in FIG. 3), and rotates in response to a signal from the controller from the beginning. Adjusting the angle consumes excessive time. Therefore, after releasing the contact between the left and right turning drive means 132 and the left and right turning friction roller 134, manually adjust the angle so that the wire guide arm (not shown) directly toward the measurement target flange, and then turn again. The plate 130 and the left and right swing friction roller 134 are in contact with each other. In the drawing, the solid line part is a state in which the left and right turning plate 120 and the left and right turning friction roller 124 are in contact with each other and a driving force is transmitted, and the dotted line indicates a state for manually adjusting the release of the contact. In order to release the contact, the tension adjusting knob 138 is pushed or pushed to fix the stop, or stops pushing and releases the fixed friction roller 134 by the tension adjusting spring 137 is rolled up and left and right The driving force is transmitted to the turning plate 120. Reference numeral 129, which has not been described, indicates the rotation axis of the friction roller for vertical swing.

Hereinafter will be described the operation of the automatic position measuring device for manufacturing the connector of the present invention.

After the automatic position measuring device of the present invention is installed on the measurement standard flange, the contact rollers are released to adjust the wire guide arm toward the flange to be measured by releasing the contact of the friction rollers for turning left and right and up and down, and then the friction rollers are rolled back. The driving force can be transmitted in contact with. The step motor for turning left and right and up and down in accordance with the contact signal of the wire contact sensor attached to the end of the guide arm while the wire is drawn out and connected to the hook hook which is inserted into the bolt hole of the counterpart flange to be measured. Operation to minimize the load on the wire path and reduce the damage caused by friction between the wire and the sensor. After the wire is connected to the hook hanger, each step motor is operated until there is no contact between the wire and the wire contact sensor.After that, the step motor is operated so that the wire and the wire contact sensor touch once, up, down, left and right. By calculating the median of the two contact values, the error of the minute gap between the guide arm and the wire is corrected.

Since the above measurement is made of three to four bolt holes of the flange to be measured, it is possible to calculate the relative angle of the flange face to be measured with respect to the reference flange face.

The distance between the reference flange and the measurement target flange is determined by the wire drawing distance measured by the wire draw sensor, and the reference flange is determined by the left and right turning angle and the up and down turning angle measured by the left and right pivot angle sensor and the vertical swing angle sensor. The positional relationship between and the flange to be measured can be calculated.

As described above, the automatic position measuring device of the present invention reduces the error caused by the non-uniformity of the wire tension and enables accurate relative position measurement by eliminating the gap between the dome and the guide arm.

Claims (5)

In the automatic position measuring device for measuring the relative position between the installed flange of the pipe, A main frame 112 having mounting plates 114 and 116 fixed to one flange; A transfer table 119 installed to be movable up and down on the main frame 112; Left and right pivot plate 130 to rotate left and right on the transfer table (119); Left and right driving means (132) for driving the left and right pivot plates (130); A vertical turn plate 120 attached to the left and right turn plates 130 and rotating together with the left and right turn plates 130, vertically rotating in a direction perpendicular to the left and right rotation shafts, and connected to the wire guide arm 140; Vertical driving means 122 attached to the left and right pivot plates 130 to drive the vertical pivot plates 120; A wire contact sensor 152 installed at an end of the wire guide arm 140; It is drawn out from the wire winding part 154 installed in the main frame 112, and is passed through the left and right rotation shaft to the wire guide arm 140, the front end is connected to the hook 150 for fixing to the pipe pipe to be measured A wire; A wire draw sensor 146 attached to the wire winding unit 154 to measure a length of the drawn wire; And Receiving a signal from the wire draw sensor 146, the left and right rotation angle detection sensor 136 and the vertical rotation angle detection sensor 126, and comprises a control unit for controlling the left and right driving means and vertical movement means Position measuring device. The method of claim 1, The wire contact sensor 152 has an automatic position measuring device, characterized in that it has four, up, down, left, right contact points therein. The method of claim 1, The controller controls the driving of the left and right driving means 132 and the vertical driving means 122 to contact all four contact points in accordance with the contact signal of the wire contact sensor 152. The method of claim 1, Automatic position measuring device further comprises a tension adjusting device and a friction roller 134 for adjusting the transmission and blocking of the driving force of the left and right driving means 132 to the left and right turning plate 130. The method of claim 1, Automatic position measuring device further comprises a tension adjusting device and a friction roller 124 to control the transmission and blocking of the driving force of the up and down driving means 122 to the up and down turning plate 120