KR100228818B1 - Six tool head for variable pitch - Google Patents

Abstract

According to the present invention, the pitch-variable six-tool head includes: an X-direction guide means and a Y-direction guide means for guiding a tool in a predetermined direction (X, Y) direction, a transfer means for allowing the tool to be transferred along the guide means; 6. A six-tool head having a drive source for operating the conveying means, the six-tool head having a reference tool fixed in the center, wherein the conveying means comprises a ball screw and a rolled screw having left and right screws in opposite directions. The pitch can be expanded or contracted.

Description

Pitch Adjustable 6 Tool Heads

1 is a plan view of a conventional toolhead.

2 is a side view of a conventional toolhead.

3 is a view for explaining the transfer of parts by a conventional tool head.

4 is a side view of a toolhead according to the invention.

5 is a front view of a toolhead according to the invention.

6 shows the transport of a tool according to the invention.

* Explanation of symbols for main parts of the drawings

31: X direction drive motor 32: motor pulley

33: time belt 34: tension controller

35 sensor 41 ball screw

42: Ball screw nut 51: X direction guide

52: y-direction guide 61: interlocking guide

71: Bracket 81: y-direction drive motor

82: motor pulley 83: time belt

84: tension controller 85: sensor

91: Rolling screw 92: Rolling screw nut

The present invention relates to a tool head, and more particularly, to a six tool head which makes it possible to easily adjust the pitch between tools within a maximum travel distance.

The conventional six tool heads have a cylinder (1) for spreading the pitch in the X direction, a cylinder (2) for spreading the pitch in the Y direction, and linear transport in the up and down directions, as shown in FIGS. 1 and 2. , Guide and hollow ball splines (4), suction pads (6) for adsorbing chips to be transported, cylinders (3) for moving the ball springs and suction pads, compression springs (5) ), A set screw 9 for adjusting the stroke range of the cylinder 1, a set screw 8 for adjusting the stroke of the cylinder 2, a guide guide 7 for linear movement in the X direction, and a Y direction. It consists of a guide guide 11 for linear movement, the clamp 10 for connection with the robot shaft.

The operation of such a conventional toolhead will be described.

The tool head attached to the robot axis (not shown) is positioned by the movement of the robot, and the X direction cylinder 1 of the tool head is reversed, and the Y direction cylinder 2 is reversed (referred to as the first position). Catch. The first position is a distance equal to the distance of the chip 12 on the first tray 13 in which the chip 12 shown in FIG. Next, the head is moved so that the X-direction cylinder 1 moves forward and the Y-direction cylinder 2 moves forward (referred to as the second position), and the stop screw 8 and the stop screw 9 move by a predetermined distance. Position 2 The tool head and the cylinders (1) (2) moved to the position of the second tray (14) are retained, and the chips (12) located in the second tray (14) are advanced from two Z-direction cylinders (3) in the first row. ) And the cylinder 3 is reversed again. In the same manner, the cylinders 3 of the second row and the third row are moved forward and backward in order to adsorb the chips 12 of the second tray 14. The chip 12 adsorbed by the tools 3, 4, 6 moves the robot to a position in the first tray 13, and moves the X-direction cylinder 1 and the Y-direction cylinder while moving. (2) is reversed. At the position of the first tray 13, the tool seats the chip 12 adsorbed by the first row of cylinders 3 advancing into the groove of the first tray 13, and is moved backward. In turn, it is seated in the groove. This operation is repeated to fill the first tray.

In this conventional tool head, the stop screw (8) (9) is used to adjust the pitch in the X direction and the Y direction, so that it is difficult to match each pitch, and the pitch change time for model change is long, and one cycle There was a problem in that multiple pitches could not be used. Accordingly, an object of the present invention is to provide a variable pitch 6 tool head capable of easily adjusting the pitch between tools within a maximum feed distance.

In order to achieve the above object, the pitch variable six tool head of the present invention, X direction guide means and Y direction guide means for guiding the tool in a predetermined direction (X, Y) direction, and the tool to convey the tool along the guide means; 6. A six-tool head having a conveying means to enable a driving source and a driving source for operating the conveying means, the six-tool head having a reference tool fixed in the center, wherein the conveying means comprises a ball screw and a left and right screw in opposite directions. It is composed of a rolled screw having a feature that can be expanded, reduced to any pitch.

Hereinafter, the pitch variable six tool head of the present invention will be described in detail with reference to the accompanying drawings.

As shown in FIGS. 4 to 6, the variable pitch 6 tool head according to the present invention includes a bracket 71 on which a tool is mounted, motors 31 and 81 serving as driving sources in X and Y directions, and each motor. Motor pulleys 32 and 82 for power transmission, time belts 33 and 83 connected to each motor pulley, and tension controllers 34 and 84 for tension control, and are transmitted through the time belt 33. The rotational motion of the motor in the Y direction transmitted through the ball screw 41 and the time belt 83 to convert the rotational motion of the motor in the X direction to the linear motion into the linear motion and the left and right pitch around the reference tool. Guide guide for supporting the guide screw (91) having the left and right screws in the opposite direction, the guide guide for guiding the tool in the X direction, the guide in the Y direction of the tool and the bracket (71) to which the tool is mounted ( 52), guide guide 61 for linking the two guide guides 52 to the bracket 71, the maximum movement distance in the X, Y direction is limited It consists of a sensor 35, 85, the ball screw nut 42 and the precursor screw nut 92 for group.

Hereinafter, the operation of the pitch variable six tool head of the present invention will be described.

When the two motors 31 and 81 are driven, the origin of the X and Y directions is set by the encoders and the sensors 35 and 85 of each motor. When the motor 31 in the X direction is driven, power is transmitted to the ball screw 41 by the pulley 32, the time belt 33, and the tension controller 34, and the rotational motion of the ball screw is the ball screw nut 42. And three brackets 71 are simultaneously transferred by the guide guide 52 attached to the ball screw nut 42 by a linear guide by the guide guide 51. At the same time, power is transmitted to the rolling screw 91 by the pulley 82, the time belt 83, and the tension controller 84 by driving the motor 81 in the Y direction, and the rolling screw nut 92 and the guide guide 52 Left or right) or narrowed by). At this time, the bracket 71 attached to the guide guide 52 is widened or narrowed to the left or right, and the guide guide 52 is connected to the guide guide 61 so that the bracket 71 can be rotated as shown in FIG. You will open or narrow them by two.

As described above, according to the present invention, the pitch of the bracket on which the tool is mounted can be easily adjusted in the X and Y directions within the maximum feed distance, and when the pitch is changed, the operator can change only the operation of the operation panel. It is possible to change according to the change and the necessary use, it is possible to quickly respond to the change of the model, the accuracy of the pitch is more accurate than the conventional cylinder, it is possible to work in various pitches in one cycle.

Claims (3)

X direction guide means and Y direction guide means for guiding a tool in a predetermined direction (X, Y) direction, a transfer means for transferring the tool along the guide means, and a driving source for operating the transfer means. In one 6 tool head, having a reference tool fixed to the center, the conveying means is composed of a ball screw and a roll screw having left and right pitch in the opposite direction, it is possible to extend and contract to any pitch 6-tool head with variable pitch. The variable pitch 6 tool head of claim 1, wherein the rolling screw is formed in a direction opposite to the center of the fixed reference tool in the center to expand and contract the pitch between the tools. The variable pitch 6 tool head according to claim 1, further comprising guide means for interlocking a bracket in which the tool is mounted to the Y direction guide means.