CN2577250Y

CN2577250Y - Automatic measuring device for engineering capacity performance of high-speeding sheet make-up machine

Info

Publication number: CN2577250Y
Application number: CN 02261448
Authority: CN
Inventors: 曾秉斌
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-11-11
Filing date: 2002-11-11
Publication date: 2003-10-01
Anticipated expiration: 2012-11-11

Abstract

The utility model relates to an automatic measuring device for the engineering capacity parameter of a high-speeding sheet piece pasting machine, which comprises a bracket, a standard basal plate, a computer and a transmission scanner connected with the computer, wherein, the standard basal plate is arranged on the bracket. The bracket can be connected with the transmission scanner through a slide rail in horizontal motion. Moreover, when the bracket and the standard basal plate on the bracket horizontally move into the transmission scanner, a lighting source and an image receiver of the transmission scanner are respectively positioned on both sides of the bracket and the standard basal plate. The utility model uses a transmission imaging system for obtaining a position image of a standard component on the standard basal plate, automatically measuring a central coordinate and an angle offset and computing the engineering the capability parameter. The utility model has the advantages that because an image pickup device adopts the transmission scanner, the cost is low; measuring references can be obtained nearly by the high accuracy standard basal plate, the measuring accuracy mainly depends on the precision of a scale, and thus, the affects of a measuring result from the mechanical precision of the device and the accumulated error of a driving system are reduced; the transmitted light imaging mode is used for raising the image resolution and the contrast.

Description

A kind of high speed placement system engineering capability parameter self-operated measuring unit

(1) technical field

The utility model relates to a kind of high speed placement system engineering capability parameter self-operated measuring unit.

(2) background technology

In the surface mount process control procedure, need carry out periodic measurement to the engineering capability parameter CP (Capability of Process) of high speed placement system to guarantee the comprehensive manufacturing capacity of chip mounter under normal service conditions.The key of measuring the CP parameter is centre coordinate deviation X, Y and the angular deviation Q of measurement standard element on standard substrate.

In the surface mount industry, the existing equipment of measuring components and parts centre coordinate and angular deviation mainly is automatic optical checking machine (AOI), and this equipment inner structure comprises XY axis servomotor and CCD (charge-coupled device) camera.The normal CCD viewing field of camera is less, if will measure to reaching thousands of standard components of hundreds of on the standard substrate, must move back and forth with driven by servomotor CCD camera or article carrying platform, take a picture one by one, because coordinate basis is unique, must have very high mechanical drive precision could obtain measurement result accurately.

(3) utility model content

The purpose of this utility model is to provide a kind of high speed placement system engineering capability parameter self-operated measuring unit, utilizes the benchmark positioning error of the location and check benchmark correction transmission scan instrument that carries on the standard substrate.

A kind of high speed placement system engineering capability parameter self-operated measuring unit provided by the utility model is characterized in, it comprises the transmission scan instrument that carriage, standard substrate, computing machine and computing machine link to each other, and wherein: standard substrate is placed on the carriage; But carriage is done translation by slide rail and transmission scan instrument and is connected, and when carriage and standard substrate on it moved in the transmission scan instrument, the lighting source of transmission scan instrument and picture receiver branch were listed in carriage and standard substrate both sides.

Above-mentioned high speed placement system engineering capability parameter self-operated measuring unit, wherein, standard substrate adopts optical plate glass, and four jiaos of marks that respectively are provided with as the benchmark of placing standard component at sheet glass, central longitudinal horizontally-arranged cloth the transparent rules pattern as the position measurement benchmark of standard component, and at each regular pattern, promptly the center of position measuring basis is provided with the mark as the calibration reference of its bearing accuracy.

Adopted above-mentioned technical solution, promptly utilize the transmission imaging system to obtain location drawing picture, automatic measuring center coordinate and angular deflection, the computational engineering ability parameter of standard component on standard substrate, make the utility model compare with existing measuring equipment, have: 1) image acquiring device adopts the transmission scan instrument, so cost is lower; 2) by the high precision standard substrate, obtain measuring basis nearby, measuring accuracy depends primarily on substrate scale precision, has reduced the influence to measurement result of the mechanical precision of instrument itself and kinematic train cumulative errors; 3) adopt the transmitted light imaging mode, improve image definition and contrast.

(4) description of drawings

Fig. 1 is the utility model structural representation;

Fig. 2 is the transmission scan instrument structural representation in the utility model;

Fig. 3 is the centre coordinate and the angular deflection synoptic diagram of the utility model standard unit;

Fig. 4 is the synoptic diagram of standard substrate in the utility model.

(5) embodiment

As shown in Figure 1, the utility model is a kind of engineering capability parameter self-operated measuring unit that is specifically designed to high speed placement system, and it comprises the transmission scan instrument 3 that carriage 1, standard substrate 2, computing machine 4 and computing machine link to each other.Standard substrate 2 is placed on the carriage 1, and can separate from carriage 1.But carriage 1 is done translation by slide rail with transmission scan instrument 3 and is connected, promote carriage 1 and can send into transmission scan instrument 3 to standard substrate 2, at this moment, as shown in Figure 2, the lighting source 6 of transmission scan instrument and picture receiver were listed in carriage 1 and standard substrate 2 both sides in 7 minutes, stepper motor 8 drives lighting source 6 and the location drawing picture of standard component 5 at standard substrate 2 obtained in picture receiver 7 scannings, view data is by transmission line 9 input PC 4, as shown in Figure 3, measurement standard element centre coordinate skew X, Y and angular deflection Q, computational engineering ability parameter CP.

The utility model embodiment accepted standard substrate 2, as shown in Figure 4, standard substrate 2 materials are the very little optical plate glass of linear expansion coefficient, metal coating (black non transparent part) forms geometric figure, four jiaos of placement benchmark 10 that a circular mark is respectively arranged as standard component 5 of sheet glass, the transparent rectangular patterns of central longitudinal horizontally-arranged cloth benchmark 10 staggered relatively has very high positional precision, this transparent rectangular patterns is as the position measurement benchmark 11 of standard component 5, each position measurement benchmark 11 central circular is marked with very high positional precision, as the bearing accuracy calibration reference 12 of position measurement benchmark 11.

The transmission scan instrument 3 that the utility model embodiment adopts is SCANMAKER8700 that MICROTEK company produces, highest resolution 9600dpi, cold cathode fluorescent lamp, linear CCD, SCSI-II data-interface.The PC 4 that the utility model embodiment adopts is IBM PC, and CPU is Pentium III450MHZ, 128M internal memory, 40G hard disk.

Claims

1. high speed placement system engineering capability parameter self-operated measuring unit, it is characterized in that, it comprises the transmission scan instrument (3) that carriage (1), standard substrate (2), computing machine (4) and computing machine link to each other, and wherein: standard substrate (2) is placed on the carriage (1); Carriage (1) by slide rail with transmission scan instrument (3) but do translation and be connected, and when carriage (1) and the standard substrate on it (2) moved in the transmission scan instrument (3), transmission was penetrated the lighting source (6) of scanner and picture receiver (7) and is divided and be listed in carriage (1) and standard substrate (2) both sides.

2. a kind of high speed placement system engineering capability parameter self-operated measuring unit according to claim 1, it is characterized in that, described standard substrate (2) adopts optical plate glass, and four jiaos of marks that respectively are provided with as the benchmark (10) of placing standard component (5) at sheet glass, central longitudinal horizontally-arranged cloth the transparent rules pattern as the position measurement benchmark (11) of standard component (5), and at each regular pattern, promptly the center of position measuring basis (11) is provided with the mark of the calibration reference (12) as its bearing accuracy.