KR910000177B1 - Feed mechanism - Google Patents

Abstract

The transfer system used for moving workpieces exactly to wanted positions, comprises a sensing plate (4) set at one end of a primary motor (1) shaft (2), a transfer screw (8) coupled to the other end of the motor shaft, an electronic clutch (5) and a large-sized gear (6) on the middle of the motor shaft, an electronic brake (7) fixed to the inner side of the motor (1), a small gear (11) set at one end of an auxiliary motor (10), and a sensor (12) in which a photo-sensor (13) is positioned opposite to a luminous lamp (14). The advantage is providing easy operation/ large torque.

Description

Position feeder by motor combination

1 is an exemplary view showing an operating state of the present invention.

Figure 2 is an enlarged cross-sectional view of the main part of the present invention.

3 is a partial perspective view of the present invention.

4 is a control block diagram of the present invention.

5 is a block diagram showing an operating state of the present invention.

* Explanation of symbols for main parts of the drawings

1: main motor 2: axis of rotation

3: rectangular sensing hole 4: sensing plate

5: electronic clutch 6,11: gear

7: electromagnetic brake 8: transfer screw

9 coupling 10 auxiliary motor

12 detector 13 light sensor

14: lamp

The present invention is to convert the rotational motion of the general motor into a linear reciprocating motion to transfer the materials, such as to combine the auxiliary motor, electromagnetic brake, electromagnetic clutch, and the transfer distance detector to transfer the object to the correct position It relates to an in-situ feed device by a motor combination.

Conventionally, when a precise transfer is required, a transfer device using a stepping motor or a servo-motor is used, which is expensive and large in size, which is very popular for the industry. There was a difficult flaw.

Accordingly, an object of the present invention is to solve the above-mentioned drawbacks, and in particular, to reduce the cost of the device and at the same time to produce a large capacity and torque, and yet another object of the present invention is that the operation is simple. It is intended to be easily used by unskilled people, described in detail below based on the accompanying drawings.

In the attached drawings 1 to 3, a sensing plate 4 having a plurality of rectangular sensing holes 3 having a constant angle is formed on one end of the rotating shaft 2 of the main motor 1, The electromagnetic clutch 5 and the large gear 6 are laid out and the electromagnetic brake 7 is fixed to the inside thereof. The other end of the rotating shaft 2 is connected to the tip of the feed screw 8 and the coupling 9. Connect.

10 is an auxiliary motor made of a reduction motor, and a small gear 11 is installed at the tip of the auxiliary motor 10 to engage with the large gear 6, and 12 is an optical sensor 13 and light emission inside. A "U" type travel distance sensor with a lamp 14 mounted therein so that the sensing plate 4 is inserted into the "U" recess of the detector 12, but the load of rotation of the sensing plate 4 is not applied. The groove is formed wide so that the detection plate 4 does not touch.

Reference numeral 15 is a transfer table that is joined to the transfer screw (8) to move left and right.

The present invention as described above will be described with reference to FIG.

First, if the feed distance is input through the control panel, the feed distance and the like are displayed on the distance indicator, and the input feed distance is controlled by the electronic clutch (5), the electromagnetic brake (7), the main motor (1) and the controller. The power supply is connected to each other by the auxiliary electric motors 10 and the like, and the power is applied to each other. When the transporting distance is almost at the home position, the power supply is stopped by the transporting distance sensor 12. Referring to Figure 5 in detail as follows.

After setting the transfer distance in consideration of the transfer distance of the transfer table 15 in the screwed state when the feed screw 8 is rotated in the screwed state, the set transfer distance is applied to the operation unit. When the power is turned on in the state, the main motor 1 is rotated and the feed screw 8 connected through the coupling 9 is rotated at the same time so that the feed table 15 in which the object is fixed is installed. To be transported.

When the transfer table 15 transported in this process is transported near the distance already set in the transport distance sensor 12, the main motor 1 is stopped by the operation of the electromagnetic brake 7. The stopping process is a part of the sensing plate 4 on the rotating shaft 2 passes through the recessed portion of the transport distance sensor 12 and is simultaneously rotated with the rotating shaft 2 so as to penetrate through the sensing plate 4. The light sensor 13 detects light on the light emitting lamp 14 which is intermittently emitted through the light source, and rotates at the same speed as the rotating shaft 2 while counting the number of times the light emitted from the light sensor 13 is detected. When the rotational speed of the sensing shaft 4 is detected and the rotational speed of the rotation shaft 2 almost reaches a predetermined rotational speed, the electromagnetic brake 7 is operated to stop the main motor 1.

When the main motor 1 is stopped by the above process, the sub-motor 10 and the electromagnetic clutch 5 are operated simultaneously, and the large gear 6 engaged with the gear 6 of the sub-motor 10 is main. The self-rotating power of the rotating shaft 2 is rapidly reduced while simultaneously rotating with the rotating shaft 2 continuously rotating at low speed by the remaining self-rotating power after the motor 1 is stopped. When the object on the conveying table 15 reaches a predetermined set position, the electronic brake 7 is reactivated by the conveying distance sensor 12 that detects the object and stops the object accurately at the correct position.

Such an operation process may be repeated as needed and may be transported by variously manipulating the transfer distance setting to a second set value, a third set value, etc. as necessary.

As described above, the present invention enables the accurate object transfer to the right position while using a general motor, as well as simplify the structure and can be widely supplied at a low price, so that even the beginners to simplify the operation While there is an advantage that can be easily used, it is an excellent invention that can be usefully applied to automate various robots, industrial machines and machine tools.

Claims (1)

The sensing plate 4 having a plurality of rectangular sensing holes 3 is arranged on one end of the rotating shaft 2 of the main motor 1, and the electromagnetic clutch 5 and the large gear 6 are arranged in the middle part. At the same time, the electromagnetic brake 7 is fixed to the inside thereof, and the other end of the rotating shaft 2 is connected with the transfer screw 8 by a coupling 9, and a small gear 11 is provided at the tip of the auxiliary motor 10. ) Is arranged to be engaged with the large gear (6) and on one side of the detection plate 4, characterized in that the optical sensor 13 and the light emitting lamp 14 is installed by installing a detector 12 installed in an opposite state Position feeder by motor combination.

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