JPH10256799A - Tape feeder inspector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a tape feeder inspector which can inspect the presence or absence of a deviation in the pickup position of a tape feeder used in an electronic component-mounting apparatus or a deviation in the height of a rocking lever accurately and in a simple manner. SOLUTION: A main jig is arranged on a base 2, a small hole of the main jig is observed by a camera 7 for recognizing a correct pickup position. The height of the main jig is measured by a dial gauge 20 to previously find the correct height of a rocking lever. Next in place of the main jig, a tape feeder as an inspection object is arranged on the base 2. Then the pocket of tape set in the tape feeder is observed by the camera 7 to find a positional deviation from a predetermined pattern and to thereby find a deviation in the pickup position of the tape feeder. Then a deviation in the height of the rocking lever is inspected by the dial gauge 20.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tape feeder inspection apparatus used as an electronic component supply unit in an electronic component mounting apparatus.

[0002]

2. Description of the Related Art An electronic component mounting apparatus for mounting an electronic component on a substrate is provided with an electronic component provided in an electronic component supply unit, which is vacuum-adsorbed to a lower end portion of a nozzle, picked up, and transferred to a predetermined coordinate position on the substrate. It is supposed to.

A tape feeder is frequently used as an electronic component supply unit. The tape feeder feeds the tape wound on the supply reel by pitch feed means, feeds the electronic components stored in the tape pocket to the pickup position, and picks up the vacuum by suctioning to the lower end of the nozzle at the pickup position. It is supposed to. The pitch feed means is composed of a sprocket for adjusting the tape, a rocking lever for rotating the sprocket by pitch, and the like, which is rocked by pressing the rocking lever from above, and interlocked with this rocking. Then, the sprocket is rotated at a pitch to feed the tape at a pitch.

A tape feeder has been used for many years, and is liable to be deformed or rattle during the time when the tape feeder collides with an object or accidentally falls on the floor. When deformation or backlash occurs, the pickup position of the electronic component, the height of the swing lever, and the like are deviated, and a pickup error and a tape pitch feed error occur.

[0005] Therefore, the tape feeder is inspected to determine whether the pickup position or the height of the swing lever has been deviated. Conventionally, this inspection has been performed manually by an operator using various measuring instruments and the like.

[0006]

However, manual inspection requires a great deal of labor and time, and there is a problem in that the adjustment is likely to be out of order due to the individual error of the operator.

Accordingly, it is an object of the present invention to provide a tape feeder inspection apparatus capable of accurately and easily inspecting whether a tape feeder is out of order.

[0008]

According to the first aspect of the present invention,
What is claimed is: 1. A tape feeder inspection device for feeding an electronic component stored in a tape pocket to a pickup position while feeding a tape at a pitch by driving a pitch feed means, comprising: a main jig having a pickup position confirmation unit; A pedestal for arranging tools and a tape feeder, a camera for observing the pickup position of the main jig disposed on the pedestal and a pickup position of the tape feeder, and a pattern generation for generating a pattern for alignment within the field of view of the camera. And a moving means for moving the field of view of the camera by horizontally moving the camera relative to the main jig, and a monitor television for displaying an image captured by the camera.

According to a second aspect of the present invention, there is provided a tape feeder for feeding an electronic component housed in a tape pocket to a pickup position while feeding a tape at a pitch by pressing a swing lever to drive a pitch feeding means. An inspection apparatus, comprising: a pedestal on which a tape feeder and a jig for checking the height of a swinging lever are mounted; and a height of the swinging lever and a jig for checking the height of the swinging lever which are disposed above the pedestal. And a pressing means for pressing the swing lever.

[0010]

According to the first aspect of the present invention, the pickup position of the main jig disposed on the base and the pickup position of the tape feeder are observed by a camera, so that the pickup position of the tape feeder is incorrect. Can be easily inspected.

According to the second aspect of the invention, the height of the swing lever of the tape feeder and the jig for checking the height of the swing lever are measured by a height measuring device, thereby obtaining the height of the swing lever. Can be easily inspected.

An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view of a tape feeder inspection apparatus according to an embodiment of the present invention, FIG. 2 is a perspective view of a monitor unit of the tape feeder inspection apparatus, and FIG. 3 is a jig of the tape feeder inspection apparatus. 4 and 5 are side views of the tape feeder inspection device, FIG. 6 is a front view of the tape feeder inspection device, and FIG. 7 is a screen view of a monitor television of the tape feeder inspection device.

First, the overall structure of a tape feeder inspection apparatus will be described with reference to FIGS. In FIG. 1, reference numeral 1 denotes a base plate, on which the components described below are disposed. Reference numeral 2 denotes a pedestal disposed on one side of the upper surface of the base plate 1, and ribs 3 project from the front and rear portions of the upper surface at an equal pitch. As described later, the rib 3 and the rib 3
A main jig and a tape feeder are removably arranged between them. The pedestal 2 has the same structure as a table (see, for example, FIG. 1 of Japanese Patent Application Laid-Open No. 2-271798) used as a positioning portion of a tape feeder in an electronic component mounting apparatus.

A support wall 4 is erected on the other side of the base plate 1, and a frame 5 is mounted on the support wall 4 (the above description).
4 and 6). 1 and 4, a bracket 6 is mounted on a frame 5, and a camera holder 8 for holding a camera 7 is mounted on the bracket 6. An X screw 11 and a Y screw 12 are mounted on two orthogonal surfaces of the bracket 6. The camera holder 8 is connected to the bracket 6 via a Z screw 13. Therefore, by rotating the X screw 11 and the Y screw 12, the camera 7 is adjusted in the plane position in the X and Y directions, and by rotating the Z screw 13, the camera 7 is moved up and down to adjust the focus. You. That is, the X screw 11 and the Y screw 12 are moving means for horizontally moving the field of view of the camera 7.

In FIGS. 1 and 6, a frame 5 is provided with a dial gauge 20 as a height measuring device and a cylinder 22 as pressing means. The diamond gauge 20 and the cylinder 22 are located above the pedestal 2 and have a gauge rod 21 and a rod 23 extending downward, respectively. The cylinder 22 is connected to a toggle unit 26 and a regulator (pressure regulator) 27 by a tube 25. When air is supplied from an air source (not shown), the rod 23 moves up and down. The rod 23 of the cylinder 22 pushes a swing lever of a tape feeder (described later) to feed the tape at a pitch.

Next, the monitor unit will be described with reference to FIG. The monitor unit 30 is configured by stacking a pattern generator 32, a camera controller unit 33, and a monitor television 34 on a frame 31. 35 is a power cord. The pattern generator 32 generates a pattern in the field of view of the camera 7. The pattern generator 32 generates various shapes of alignment patterns according to the size and shape of the tape pocket. The camera control unit 33 controls the camera 7. The monitor television 34 displays an image captured by the camera 7.

Next, the jig will be described with reference to FIG.
FIG. 3A is a perspective view of the main jig 40. The main jig 40 has a long plate-shaped main body 41 as a main body, and a small hole 42 is formed at a tip portion thereof. The small hole 42 serves as a pickup position confirmation unit. Also the main body 41
A column 43 is erected at the center of the upper surface of the. This pillar 4
Reference numeral 3 denotes a swing lever height confirmation unit. As shown in FIG. 6, the main body 41 of the main jig 40 is detachably disposed between the ribs 3 of the pedestal 2.

FIG. 3B shows a jig 4 for checking the cylinder height.
5 is a perspective view of FIG. The jig 45 is formed of a cylindrical body, and is mounted on the pedestal 2 (see also FIG. 1). FIG.
(C) is a perspective view of the tape jig 46. Tape jig 4
Reference numeral 6 is set on a tape feeder (described later). In the center of the upper surface, small holes 4 are arranged at a pitch in the longitudinal direction.
7 are formed. The small hole 47 serves as a pickup position confirmation unit, and is observed by the camera 7. At the edge of the tape jig 46, engagement holes 48 for engaging pins of a sprocket of the tape feeder are formed at a pitch. Three jigs 40, 45, and 46 shown in FIG.
Is a reference body of the inspection, and its dimensions are accurately processed and set.

Next, the tape feeder will be described with reference to FIG. The tape feeder 50 mainly includes a long plate-shaped main body 51. A supply reel 52 is mounted on a rear portion of the main body 51. A tape 56 is wound around the supply reel 52. A sprocket 53 is mounted on the tip of the main body 51, and a swing lever 54 is rotatably mounted on the center of the main body 51. The swing lever 54 and the sprocket 53 are connected by a link 55. Swing lever 5
4 is pressed and swung in the direction of the arrow, the sprocket 53 rotates by a pitch, whereby the supply reel 52 is rotated.
Derived from the tape 56 and adjusted to the sprocket 53
Is pitch-fed. The tape feeder 50 is frequently used as an electronic component supply unit in an electronic component mounting apparatus.

This tape feeder inspection apparatus has the above-described configuration. Next, a tape feeder inspection method will be described. Prior to the inspection of the tape feeder 50, the height of the bottom dead center of the rod 23 of the cylinder 22 is adjusted as follows. As shown in FIG. 6, the jig 45 for confirming the cylinder height is arranged on the pedestal 2 immediately below the cylinder 22, and the rod 23 of the cylinder 22 is lowered to the bottom dead center. If the lower end of the rod 23 just lands on the upper surface of the jig 45, the cylinder 22 is normal. If the bottom dead center does not coincide with the top surface of the jig 45 and is too high or too low, the height of the bottom dead center of the rod 23 is adjusted so that the bottom dead center just lands on the top surface of the jig 45. Make adjustments.

The cylinder 22 is provided with a pressing rod (see, for example, Japanese Patent Application Laid-Open No.
No. 235590 (see reference numeral 8 in FIG. 1), and the height of the bottom dead center (that is, the swing lever 5
4 is pushed down to swing it, and the sprocket 53 is rotated by a pitch), the tape 56 and the tape jig 46 of the tape feeder 50 cannot be correctly pitch-fed.

When the adjustment of the cylinder 22 is completed as described above, the inspection of the tape feeder 50 is performed. First, a method of inspecting the pickup position using the main jig 40 shown in FIG. 3A will be described. As shown in FIG. 4, the main jig 40 is arranged on the pedestal 2. Next, the camera 7 is positioned above the small hole 42 and the small hole 42 is observed. In this case, turn the X screw 11, the Y screw 12, and the Z screw 13 to
The position and height of the camera 7 are adjusted so that the small holes 42 can be clearly observed.

FIG. 7A shows a screen of the monitor television 34 on which the image captured by the camera 7 is displayed. In the figure, A is the first pattern, B is the second pattern, and C is the third pattern. These three patterns A,
B and C are generated by a pattern generator 33. The first pattern A is circular and is for inspecting the position of the small hole 42. Each of the second pattern B and the third pattern C is a quadrangle, and is used to inspect the position of the pocket of the tape 56 accommodating the small rectangular electronic component and the large rectangular electronic component, respectively. X and Y are cross scales and pass through the centers of three patterns A, B and C.

The operator adjusts the plane position of the camera 7 by turning the X screw 11 and the Y screw 12 while looking at the screen shown in FIG. 7A, and matches the image of the small hole 42 with the first pattern A. . Next, as shown in FIG. 6, the gauge rod 21 of the dial gauge 20 is landed on the upper surface of the column 43 erected at the center of the upper surface of the main body 40, and the scale of the dial gauge 20 is set to 0 in that state. Adjust the dial gauge 20.

Next, the main jig 40 is removed from the base 2,
Instead, the tape feeder 50 to be inspected is arranged on the pedestal 2 (see FIG. 5). Then, the rod 23 of the cylinder 22 is moved up and down to swing the swing lever 54, and the tape 7 is fed at a pitch, and the pocket of the tape 56 is observed by the camera 7. In this case, since the height of the bottom dead center of the rod 23 of the cylinder 22 has been adjusted as described above,
The pocket can be observed while feeding the tape 56 at the correct pitch.

FIG. 7B shows the monitor television 3 at this time.
4 shows the screen of FIG. In the figure, P is a pocket of the tape 56. The pocket P in this example is for accommodating small electronic components, and the second pattern B indicates its correct position. Therefore, the positional deviation amounts ΔX and ΔY of the pocket P in the X and Y directions are read from this screen. After reading the positional deviation amounts ΔX and ΔY, the tape feeder 50 is adjusted so as to eliminate the positional deviations ΔX and ΔY. Since this adjustment method is well known, its description is omitted.

Next, a method of using the tape jig 46 shown in FIG. 3C will be described. There are several types of tapes set in the tape feeder 50. Of these tapes, the pocket of the paper tape is formed by cutting into a rectangular shape. Therefore, as shown in FIG. 7B, the shape of the pocket P, particularly the four corners, which are the characteristic portions thereof, are clarified by the camera 7. Can be recognized. However, since the edges of the pockets formed by embossing the resin tape are rounded, the corners of the four corners cannot be clearly recognized by the camera 7, so that the above-described inspection cannot be performed accurately.

Therefore, in the case of such a tape which cannot be clearly observed by the camera 7, a tape jig 46 is used instead.
Is set on the tape feeder 50 for use. That is, the small hole 47 of the tape jig 46 is formed at a position corresponding to the center of the pocket of the embossed tape, and as shown in FIG. It can be obtained as a displacement of the pickup position. D is a fourth pattern for obtaining the image displacement of the small hole 47.

Next, as shown in FIG.
The difference between the height of the column 43 and the height of the column 43 is obtained by landing the zero gauge rod 21 on the upper surface of the swing lever 54 and reading the scale of the dial gauge 20. This difference in height is a deviation in the height of the swing lever 54. If there is this deviation, the tape can be correctly pitch-fed even if the swing lever 54 is pressed by the pressing rod of the electronic component mounting apparatus. Can not. Therefore, if there is any deviation in this height, the height of the swing lever 54 is adjusted so that this deviation in height is eliminated. Since this adjustment method is well known, the description is omitted.

[0030]

According to the present invention, it is possible to easily and accurately inspect whether or not the pickup position of the tape feeder and the height of the swing lever are correct, and eliminate the individual error of the operator and accurately perform the inspection. Inspection can be performed.

[Brief description of the drawings]

FIG. 1 is a perspective view of a tape feeder inspection apparatus according to an embodiment of the present invention.

FIG. 2 is a perspective view of a monitor unit of the tape feeder inspection device according to the embodiment of the present invention;

FIG. 3 is a perspective view of a jig of the tape feeder inspection device according to the embodiment of the present invention;

FIG. 4 is a side view of the tape feeder inspection apparatus according to the embodiment of the present invention;

FIG. 5 is a side view of the tape feeder inspection apparatus according to the embodiment of the present invention;

FIG. 6 is a front view of the tape feeder inspection apparatus according to the embodiment of the present invention;

FIG. 7 is a screen view of a monitor television of the tape feeder inspection device according to the embodiment of the present invention;

[Explanation of symbols]

 2 Base 7 Camera 11 X screw 12 Y screw 13 Z screw 20 Dial gauge 22 Cylinder 23 Rod 40 Main jig 42 Small hole 43 Cylindrical body 45 Cylinder height check jig 46 Tape jig 50 Tape feeder 53 Sprocket 54 Rocking lever 56 tapes

Claims (2)

[Claims] An apparatus for inspecting a tape feeder for feeding an electronic component stored in a pocket of a tape to a pickup position while feeding the tape at a pitch by driving a pitch feed means, the main control having a pickup position confirmation unit. Fixture, a pedestal for arranging the main jig and the tape feeder, a camera for observing the pickup position of the main jig disposed on the pedestal, and a pickup position for the tape feeder, and a pattern for positioning within the camera's field of view. A pattern generator for generating the image, moving means for moving the field of view of the camera by moving the camera horizontally relative to the main jig, and a monitor television for displaying an image captured by the camera. Characteristic tape feeder inspection device. 2. A tape feeder inspection apparatus for feeding an electronic component stored in a tape pocket to a pickup position while feeding a tape at a pitch by pushing a swing lever and driving a pitch feeding means. A pedestal on which the tape feeder and the jig for checking the height of the swinging lever are placed, and a height measurement for measuring the height of the swinging lever and the jig for checking the height of the swinging lever which are arranged above the pedestal. An inspection apparatus for a tape feeder, comprising a container and a pressing means for pressing a swing lever.