TWI221903B - Carrier positional displacement detecting mechanism - Google Patents

Abstract

In a horizontal conveyance type auto-handler, the operation of a carrier 4 is stopped when a positional displacement of the carrier 4 relative to a test board 2 is detected. A shaft 8 is provided on a center of a guide pin 11 on the test board 2. When the carrier 4 which is displaced relative to the test board 2 is lowered, the shaft 8 is pushed down by the carrier 4, and the lowering of the shaft 8 is detected by an optical sensor 9, thereby stopping the lowering operation of the carrier 4.

Description

1221903 A7 V. Description of the invention (6 Test template 2, when the carrier 4 is lowered toward the test template 2, the guide pin 丨 丨 inserts and engages the positioning hole 4a of the carrier 4, so that the carrier * will be as As shown in Figure 2 (B), it is properly positioned on the test template 2. As shown in Figures 2 (A) and 2 (B), the tip of the shaft 8 "does not touch the carrier 4 and other, etc. At this time, # 8 will not move up and down, so the rear end 8b of the shaft 8 will not interrupt the optical sensor 9. That is to say, in this example, because the offset of the carrier 4 is not detected, the carrier 4 is lowered. The operation and other things will not be interrupted. Therefore, although the carrier 4 is lowered, even if the carrier 4 is transported as shown in FIG. I (A), the position of the carrier 4 is removed from the test template 2 and set on the test template 2 The guide pin 11 neither inserts nor engages the positioning hole of the carrier 4, so the tip 8a of the shaft 8 will pull the contact part other than the positioning hole 4a of the carrier 4 as shown in Fig. 2 (B). Result When the shaft 8 blocks the spring 10, the shaft 8 will move downward, so that the rear end 8b of the shaft 8 interrupts the optical sensor 9. When the optical sensor 9 is interrupted, it will output the carrier Offset detection signal. The controller of an automatic operator, not shown, interrupts the lowering of the carrier 4 according to the carrier offset detection signal. As a result, it is resolved that the carrier 4 is caught between the contact pressure and the guide. The inconvenience between the pins. After that, once the carrier 4 is raised again to the transport position and the position is corrected, it is lowered again and the positioning operation of the carrier 4 is restarted. As mentioned in the details above, since The present invention adopts a carrier offset detection mechanism. Even if the position of the carrier 4 is not detected before the carrier 4 is lowered, the optical sensor 9 is only used when the carrier 4 is actually lowered to the set position. The detection signal will be output only when the position of carrier 4 is in order to interrupt the carrier ’s M-square ruler standard (CNS) A4 specification 313263 (please read the precautions on the back before this page) -------- Order --------- Line · Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs, B7 of 6.2219,03. 5. The description of invention (7) 4. It means that no extra cheek position is needed. , So the target time will not be delayed. Time detection carrier 4 According to the present invention, only The carrier 7 疋 is very convenient. When the position of the carrier 4 is offset, the contact time is equal to the setting of the carrier and the carrier is actually lowered to the set carrier. The shift of the carrier 4. When the detection of the second: No. 4 can detect the shift of the carrier 4 with the interruption of the carrier 4 in this way, it can be deformed or destroyed. In addition, it is not necessary to prevent the carrier in advance You need ^ χ and extra time to detect the position of the carrier 4, so the operation time will not be very long. It is very convenient. According to the present invention, the carrier can be constructed with a simple structure. The movement detection mechanism includes a shaft and a rear end of the shaft. f Please read the notes on the back page first) # 丨 Order --------- Printed by the first line of the Intellectual Property Bureau of the Ministry of Economic Affairs, Consumer Cooperatives, Moderate Ruler 29 X 210 (Specification 4) Α S) Ν (C quasi-standardist 7 313263

Claims (1)

9am ';; I ,, No. 90130862 Patent Application Amendment to the Patent Scope (April, 1993 κ — a kind of carrier H offset detection mechanism, which is provided with a daylight timer), which is automatically selected as a crying 4 person, automatic Known as an IC-equipped cutter u 里 襞 An IC on the carrier 4, the carrier 4 has-positioning holes 4a, and-a measuring part 2 with two pieces 2, 11 I / 1. The in-out part J is the mouth M cow 2, where the protruding part is u-hole ... To position the carrier 4 and the measurement part = to locate the carrier offset detection mechanism includes: [System, offset time contact device 8, it sticks out every dust with 11 ☆ mountain π ^ Xia Yu most of the large and large, and only when the protruding part 1 1 蛊 Α 乂 4 "skin corresponding to this can pass through the positioning hole 4 center: hole T touch detection clothes set 9 is used to detect the offset: " Contact with carrier 4 and output the load number. Qian Shi is offset 2 * t 1 Staff Welfare Committee of Central Standards Bureau, Ministry of Economic Affairs Printing 2: The time-shifting contact device 8 is a shaft that is extended by the protruding part " extended, offset :, and the contact detection split 9 is a 3 time contact The sensor at the rear end 8b of the device 8. "The offset detection mechanism of the carrier deviation detection item 1 of the patent application of the patent application, its positioning to the second: 4 will detect the load at the contact detection device 9 Stop when it is suitable for the offset signal.) 8 4 size 71 ^ 7297 foot) 313263 (revised version)