JPS60228053A - Chuck cleaning apparatus in working system for work - Google Patents

Abstract

PURPOSE:To enable a chuck and the periphery thereof to be cleaned effectively from the front side, by providing an air injecting nozzle on the tip of an arm for automatic delivery of a work so as to blow compressed air to the chuck and the periphery thereof from a position close to the chuck when the work is delivered. CONSTITUTION:A manipulator 18 is revolved by 90 deg. in the clockwise direction such that a holder 21a holds a work Wa transmitted by a work feeder 17. The manipulator 18 is returned to the original position and the holding portion 20 thereof is rotated by 90 deg. around the axis of the arm 19 such that a holder 21b is reorientated toward the chuck 11, whereby an air injecting nozzle 22 is directed upward. The manipulator 18 subsequently advances the arm 19 such that the holder 21b approaches the chuck 11 and holds the work Wb which has been worked. The holding portion 20 is then further rotated by 90 deg., so that the air injecting nozzle 22 is opposed to the chuck 11 and blows compressed air to the chuck 11 from which the work Wb has been removed and the periphery thereof for removing swarf adhered to the chuck 11 and the like. In such a manner, the chuck can be cleaned from the front side and from a position close thereto.

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to a chuck cleaning device in a workpiece machining system that uses jet force to clean and remove chips adhering to the workpiece chuck of a cutting machine or grinding machine. be.

<Prior art> Cleaning of the chuck is an essential task in the workpiece cutting system.
A) The measures shown in (B) are being taken.

The cleaning device schematically shown in FIGS. 3(A) and 3(B) has an air injection nozzle 1 directly attached to the main body of a cutting machine equipped with a workpiece chuck (hereinafter referred to as chuck) 2. , the chuck 2 is sprayed with air from the side surface of the chuck 2 to clean the chips adhering to the chuck 2 using jet force. Since the air injection nozzle 1 must be kept away from the chuck 2,
Since the distance to the center of the chuck 2 is large, the air jet force against the chuck 2 is weakened, the cleaning effect is inevitably reduced, and there is a possibility that the center of the chuck 2 may not be sufficiently cleaned.

Also, the same abbreviation I as in Figure 4 (A) and (B)? (In the device shown in 1, the air injection nozzle 1 is movably attached to the grinding machine body, and during cleaning, it is movable in a position facing the front center of the chuck 2, and the cleaning part is mounted on the chuck 2 in its original position. According to this device, since the air is blown from the front side of the chuck 2 and moreover to the center of the chuck 2, the air pressure is 44Tt.
This method has the advantage of being able to perform a good cleaning at the first time, which is ideal from the point of view of sweeping performance. However, on the other hand, it requires the air injection nozzle to be moved to the busy cleaning position and the waiting position. However, a complicated movement mechanism is required for this purpose, which inevitably increases costs and also involves machining of the workpiece.

<Problems to be Solved by the Invention> The present invention solves the problem that in the above-mentioned conventional techniques, the chuck part of the cutting system of the workpiece cannot be sufficiently cleaned, or even if it is busy, This book was invented with the aim of solving the shortcomings and inconveniences of the conventional technology, considering that it cannot be explained with a simple structure.

<Means for solving the gap problem> The present invention provides an air injection nozzle at the tip of the arm that automatically transfers the workpiece to the chuck of the Kaniji system, so that the chuck is not close to the chuck when the workpiece is transferred. The chuck and its surroundings can be effectively cleaned from the front by spraying compressed air at the desired position.

<Nest Example> A 1% example of the present invention will be explained based on FIGS. 1 to 2.

11 is an automatic machining system for a workpiece, for example, a chuck of an automatic cutting machine; 12 is a mounting part for a cutting blade 13 that moves back and forth with respect to the chuck IIK; 14; These parts 11.12
．． 13, etc., and a door 15 is provided on the front side of this cover 14, more specifically at a position corresponding to the chuck 11 of the automatic cutting machine from the side direction.

Reference numeral 16 denotes a workpiece delivery robot installed in the front part of the door 15 in close proximity to the workpiece feeder 11. The manipulator 18 of this robot 16 is a book that rotates in the horizontal direction based on a predetermined program. , is provided at the tip of a robot arm 19 that can turn around a line perpendicular to the line connecting the chuck 11 and the cutting blade 13 and that moves forward and backward in the direction of the same line. This workpiece gripping part (hereinafter referred to as gripping part) 20 is composed of a pair of members that can be relatively approached and separated in order to transfer the workpiece W to and from the chuck 11. A gripper 21 is used to quickly transfer the workpiece Wa and the processed workpiece Wb.
a, 21 b'e? -C is set for E stone.

Reference numeral 22 denotes the master's grip 21a configured as described above.
, 21b, the gripping part 20 in the state shown in FIG. ), the air injection nozzle 22 comes closest to the chuck 11, and at this time compressed air is blown from the nozzle.

Note that the work feeder 1T described above is made up of a plurality of conveyors 241C, in which a number of mounting tables 23 on which one workpiece W is placed are arranged in series, and the workpiece W on the mounting table 23 is placed in a position close to the conveyor 24. A round sensor 25 is provided to detect the presence or absence of.

<Operation> The manipulator 18 horizontally rotates 90 degrees clockwise from the state shown in FIG.
The workpiece Wa sent by 7 is grasped and tied
Returning to the position shown in the figure, the gripping part '20 of the manipulator 18 rotates 9♂ around the axis of the arm 19, and the gripping tool 21b changes direction '@' toward the chuck 11, and at this time, the air injection The nozzle 22 faces upward. Continued “The C manipulator 18 advances the arm 1st and holds the gripping tool 21b.
is brought close to the chuck 11, and the processed workpiece wb is gripped by the gripper 21b. After gripping the workpiece wb, when the gripping part 20 is further rotated by 90° around the axis,
The air injection nozzle 22 faces the chuck 11 and sprays compressed air onto the chuck 11 from which the workpiece wb has been removed and its surroundings, thereby blowing off chips adhering to the chuck 11 and the like. When the cleaning action is completed by the jet force of the compressed ψ air, the gripping part 20 further rotates 9♂ to bring the workpiece Wa to face the chuck 11, and the workpiece Wa is supported by the chuck 11.

At this time, the air injection nozzle 22 faces downward, but when the gripping part 20 rotates 90° for the fourth time, the processed workpiece wb faces upward, and the gripping tool that will receive the unprocessed workpiece Wa faces downward, and the workpiece The workpiece W8 fed by the feeder and coming -C is grasped.

Chuck 11 by compressed air injection from the air injection nozzle
During the cleaning operation, in this example, the chuck 11 itself is rotated at a slow speed so that the inside of the center of the chuck and every nook and corner around it are evenly cleaned. However, if the air injection nozzle is a rotary type, the cleaning effect will be even greater.

That is, an air injection nozzle is installed in a symmetrical position with respect to a rotation axis provided near the gripping part and 20 parallel to the axis of the chuck, and the n-stone nozzle is rotated by a motor around the rotation axis. When this happens, compressed air blows out from both ends of the propeller toward the chuck, sweeping away all the chips. When the air injection nozzle is rotated in this manner, the chuck 11 does not need to be rotated, so the chips do not become entangled and can be blown away more easily.

<Effects of the Invention> According to the present invention, an air injection nozzle pipe is attached to the workpiece transfer manib V of the workpiece transfer system in the workpiece transfer system, and cleaning is performed by jet force during the process of transferring old and new workpieces. As a result, the following excellent effects can be obtained.

(b) The chuck of the machining system of the workpiece and its surrounding area can be cleaned from the front side and from a fairly close position, making it possible to completely remove chips adhering to the chuck KN in preparation for the next machining. This allows new workpieces to be chucked correctly, and the causes of machining errors can also be eliminated.

Regardless of whether the air injection nozzle is fixedly installed near the gripper or rotated, the structure is such that the air injection nozzle can be attached to the workpiece transfer manipulator. Even without improving the workpiece adjustment system itself,
The Cm1 can be simply improved, and if you ask the robot's manibu V-Yu, you can make the automatic adjustment system a complete book to know.

(c) When the present invention is applied, no improvement work is required on the main body of the cannibalism system as described above, so it can also be applied to the conventional cannibalism system.

(d) Since the air injection nozzle does not interfere positionally with other parts of the machining system such as the chuck, workpiece, cutting tool, or grinding tool, it can be used in a wide range of applications.

[Brief explanation of drawings]

Figures 1 and 2 (A) to (C) show one embodiment of the present invention. In Figure 1, the hand section (manipulator) of the robot gripping the unprocessed workpiece is moved toward the chuck direction of the cutting stem. A schematic plan view showing the state immediately before the manipulator moves forward; Figure 2 (A) is a schematic front view showing the chuck being cleaned by the air injection nozzle after the manipulator has been removed automatically; Figure 2 (C) is the unprocessed state. Schematic front view showing the state immediately after the workpiece is gripped by the chuck of the automatic machining system, No. 3
Figures (A) and 4 (A) are schematic side views of a conventional chuck valley cleaning device M in an automatic machining system for workpieces, and Figures 3 (B) and 4 (B) are It is also a schematic normal WI diagram. DESCRIPTION OF SYMBOLS 11... Work chuck, 12... Cutting tool attachment part, 13-All cutting tools, 16... Robot, 17
...O work feeder, 19...7-A, 20...winding manipulator, Wll...work, Wa...unprocessed work, wb...processed work. Figure (A) Figure (B) Figure 4 (B)

Claims (1)

[Claims] A work chuck, a cutting tool that moves back and forth on its center axis opposite to the chuck, and when the cutting tool retreats, it moves laterally in the direction of the center axis and rotates to move the chuck In a workpiece machining system equipped with a manipulator that transfers processed workpieces and unprocessed workpieces, an air injection nozzle is installed near the mouth of the workpiece gripping tool of the manipulator, and the machined workpiece is transferred to the manipulator. For the chuck after
A chuck cleaning device for a workpiece processing system, characterized in that air is ejected from the front side and side of the chuck cleaning device.