JPH06318798A - Board clamper - Google Patents

Abstract

PURPOSE:To realize a stable clamper state even with small boards regardless of board size by a method wherein a clamper which clamps a board in a board guide is divided in the board longitudinal direction. CONSTITUTION:A plurality of clampers 3 divided in the board longitudinal direction are arranged in a pair of board guides 1 arranged on both sides of a board 2 and having a length over the longest board, and clampers 3 are individually driven by a plurality of air cylinders 5 fixed in the board guide 1. A plurality of sensors 4 which detects the presence of a board 2 are provided along the board guide 1 to sense in which range of the transfer direction of a board 2 it is located. When the board 2 is fed between side walls 1a of a pair of board guide 1 by a conveyor, only the air cylinder 5 in a range where the presence of the board 2 is detected by the sensor 4 is driven to raise the clamper 3 in this range with the result that both sides of the board 2 are clamped by the upper wall 1a of the board guide 1 and the clamper 3 to fix the board 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a board clamper for fixing a board, and more particularly to a board clamper for fixing a printed board in an automatic electronic component inserting machine or the like.

[0002]

2. Description of the Related Art A conventional substrate clamper has a pair of substrate guides 8 facing each other as shown in FIG. 2, and a substrate 2 is conveyed between side walls 8a of the pair of substrate guides 8 by a conveyor (not shown).
Supplied by. The clamper 7 is lifted by the clamp cylinder 6 (fixed to the substrate guide 8), and both sides of the substrate 2 are sandwiched between the clamper 7 and the upper wall 8b of the substrate guide 8 to fix the substrate 2. (Japanese Patent Laid-Open No. 03-024798)

In this conventional substrate clamper, in order to deal with substrates of various sizes, the substrate guide 8 is movable in the width direction of the substrate 2 by a mechanism (not shown), and the substrate 8 and The length of the clamper 7 was adjusted to the largest substrate. However, when fixing a small substrate, if the clamp cylinder 6 pushes up the clamper 7 when the position of the substrate deviates from the center of the clamper 7, the clamper 7 tilts obliquely and it becomes difficult to stably fix the substrate. There is a risk that the piston rod of the cylinder 6 may be damaged by being applied with a tilting force.

[0003]

A substrate clamper according to the present invention comprises a substrate guide having a side wall for guiding a side of a substrate and an upper wall protruding above the side wall, and the side wall below the upper wall. And a plurality of actuators that push up the clampers to hold the substrate between them and the upper wall.

The substrate clamper of the present invention may be provided with a sensor for detecting the range where the substrate exists along the side wall, and only the clamper in the range where the substrate exists detected by this sensor may be pushed up by the actuator. .

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the present invention will be described with reference to the drawings.

FIG. 1 is a perspective view showing an embodiment of the present invention.

A plurality of air cylinders fixed to the substrate guide 1 by disposing a plurality of clampers 3 divided in the longitudinal direction of the substrate on a pair of substrate guides 1 arranged on both sides of the substrate 2 and having a length longer than the longest substrate. The clamper 3 is driven individually by 5. Further, a plurality of sensors 4 for detecting the presence / absence of the substrate 2 are provided along the substrate guide 1 to detect in which range in the transport direction of the substrate 2 the substrate 2 is located.

When the substrate 2 is supplied between the side walls 1a of the pair of substrate guides 1 by a conveyor (not shown), only the air cylinder 5 in the range in which the presence of the substrate 2 is detected by the sensor 4 is driven to reach that range. A certain clamper 3 is lifted to sandwich both sides of the substrate 2 between the upper wall 1a of the substrate guide 1 and the clamper 3 to fix the substrate 2.

The substrate guide 1, the clampers 3 and the air cylinders 5 are provided only on one side of the substrate 2, only the side wall 2a is provided on the other side of the substrate 2, and only one side of the substrate 2 is the upper wall 1b. The substrate may be fixed by being sandwiched by the clamper 3.

Alternatively, all the clampers 3 may be pushed up by the air cylinder 5 regardless of the area where the substrate 2 exists without providing the sensor 4.

Further, instead of the air cylinder 5, an actuator such as a hydraulic cylinder or a combination of a motor and screw feed can be used.

[0012]

According to the substrate clamper of the present invention, the clamper sandwiching the substrate between the substrate guides is divided in the longitudinal direction of the substrate, so that a stable clamper state can be obtained regardless of the size of the substrate even if the substrate is small. effective.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention.

FIG. 2 is a perspective view showing a conventional substrate clamper.

[Explanation of symbols]

 1 PCB Guide 2 PCB 3 Clamper 4 Sensor 5 Air Cylinder 6 Clamp Cylinder 7 Clamp Block 8 Fixed Chute

Claims (3)

[Claims] 1. A substrate guide having a side wall for guiding a side of the substrate and an upper wall projecting above the side wall, and a plurality of clampers arranged below the upper wall along the side wall. A substrate clamper comprising: a plurality of actuators that push up each of the clampers to hold the substrate between the upper wall and the upper wall. 2. A substrate clamper in which a substrate guide, a plurality of clampers, and a plurality of actuators are provided on both sides of the substrate. 3. The substrate clamper according to claim 1, wherein a sensor is provided along the side wall to detect a range where the substrate exists, and only the clamper in the range where the substrate detected by the sensor is pushed up by the actuator.