KR200151220Y1 - Hand operated pulse generator - Google Patents

Abstract

According to the present invention, the inner drum coupled to the inner rotating shaft rotates and stops on the outer drum, so that the accurate stop position can be obtained not only by the suction force of the engaged magnetic force, but also by the repulsive force of the magnetic force. In the manual pulse generator in which a 100 equal scale mark (1A) is imprinted on the handle (1) to which the handle (21) is attached, and a terminal block (18) having four terminals is provided on the rear cap (19). The outer drum 15 having the outer protrusion 5 and the inner groove 3 formed therein is installed on the shaft 8, which rotates inwardly by the handle 1, with the inner drum 14 joined by a plastic injection magnet. The magnetic sensor 10 on the substrate 16 is installed in the inner groove 13 of the drum 15. When the inner drum 14 rotates, the magnetic force penetrates the magnetic sensor 10 from the N pole to the S pole ( Output flows high level and then from S pole to N pole Since the low level), the magnetic force flow to cross a manual pulse generator, characterized in that the out a pulse signal.

Description

Manual Pulse Generator

1 is an exploded perspective view showing a manual pulse generator according to an embodiment of the present invention.

Figure 2 is a perspective view of a combined manual pulse generator of the present invention.

3 is an important operation part for explaining the manual pulse generator of the present invention.

4 is an electric circuit diagram illustrating a manual pulse generator of the present invention.

* Explanation of symbols for main parts of the drawings

1: Handle 2,2 ': Assembly boss

3: handle plate 4: assembly groove

8: axis 10: magnetic sensor

13: inner groove 14: inner drum

15: outer drum 16: substrate

18: terminal block 19: rear cap

20: rear cap fixing bolt 21: handle

[Technical Field]

The present invention relates to an incremental rotary encoder type improved manual pulse generator which converts the rotation angle of the rotating shaft into an electrical signal and outputs it in proportion to the numerical control machine tool or robot. Since the inner drum coupled to the inner rotating shaft rotates and stops on the outer drum, not only can the exact stop position be obtained by the suction force of the interlocking magnetic force, but also the position correction is precisely adjusted by the suction force and repulsion force of the magnetic force even if it is misaligned. It relates to a manual pulse generator using a magnetic sensor for detecting.

[Prior art]

Recently, the incremental rotary encoder, which is installed according to the proper characteristics of electric and electronic products, is a manual pulse generator that converts the rotation angle of the rotating shaft into a pulse, which is an electrical signal in proportion to it, and is used in numerical control machine tools or robots. have. Most of the manual pulse generator outputs are in phases A and B with a phase difference of 90 ° through an external terminal block.

The conventional manual pulse generator having such a feature is made to stop at a position where the front handle scale and the handle plate scale are coincident at any corresponding position when the hand is rotated.

In other words, the operation of the manual pulse generator rotates the gear of the inner shaft in proportion to the rotation of the handle, so that 100 pulses are generated in one rotation of the electrical signals on A and B with a 90 ° phase difference, and go out through the terminal block. . At this time, the pin by the force of the inner spring is assembled to the uneven part of the gear, which stops due to the spring elastic force and the friction of the pin, and stops at the position where the outer handle scale and the handle plate scale match. Mechanical friction noise, wear of the gears over long periods of use, and a reduction in the accuracy of the stop position due to machining tolerances have occurred.

Therefore, in the conventional stop method using a manual pulse generator, since the pin contacts the unevenness of the gear by the force of the spring to the uneven gear, the handle operates while generating a click sound when the shaft rotates. And stopped. In addition, as for the internal slits, two slits, large slits and small slits, are used to assemble the light transmitting element and the light receiving element on the substrate, which is difficult to assemble and takes a lot of time during the production assembly process. There were also many problems with handling and working with large slits. Therefore, there is a need for a manual pulse generator that obtains electrical signals on A and B by employing separate sensing elements instead of the light transmitting element and the light receiving element on the substrate.

[Purpose of designation]

The present invention, in view of the above circumstances, the magnetic sensor is installed in the inner groove of the outer drum instead of the conventional light transmitting element and the light receiving element, and the S pole and the inner drum and the outer drum without the conventional spring, By magnetizing the magnetism of the N pole, it stops at the correct position by using the suction force and repulsion force of the magnetic force, thereby eliminating friction noise and abrasion, and at the same time, obtaining a soft feel. Also, by installing a magnetic sensor in the inner groove of the outer drum, It is an object of the present invention to provide an improved manual pulse generator which can reduce the number of parts and shorten the assembly time.

[Composition of design]

Manual pulse generator of the present invention for achieving the above object, the handle 1 is attached to the handle (1) is equal to 100 scale mark (1A), the terminal block having four terminals on the rear cap ( In the manual pulse generator 18 is installed, the outer drum (5) and the inner groove (3) is coupled to the inner drum (14) by the plastic injection magnet to the shaft (8) rotates inside the handle (1) The formed outer drum 15 is installed, and the magnetic sensor 10 on the substrate 16 is installed in the inner groove 13 of the outer drum 15.

EXAMPLE

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view showing a manual pulse generator according to the present invention, the manual pulse generator of the present invention is engaged because the inner drum 14 coupled to the inner rotation shaft 8 is rotated to stop on the outer drum 15 The attraction force of the magnetic force not only obtains the exact stop position, but also allows the position correction to be precisely adjusted by the repulsive force of the magnetic force even if it is shifted (see FIG. Therefore, the present invention, since the position control to stop at a constant position by using the magnetic force of the inner drum 14 and the outer drum 15 of the plastic injection magnet than the position control by the conventional spring, there is no noise during operation and contactless It has no abrasion and has a soft feeling. The magnetic sensor 10 on the substrate 16 provided in the inner groove 13 of the outer drum 15 through which the side surface of the inner drum 14 passes is detected.

First, a handle 1 with a handle 21 that can be easily rotated by hand is installed, as shown in FIG. 2, and the handle 1 is engraved with a 100 equal scale scale 1A. have. An oilless bearing (not shown) is press-fitted into the handle plate 3 having one scale 3A imprinted at a predetermined position of the handle scale 1A to prevent shaking during rotation of the internal rotating shaft 8. And two cylindrical substrate assembly bosses (2) formed so as to assemble the outer drum (15) magnetized at the S pole and the N side in a predetermined position, and to fix the substrate (16) and the rear cap (19). There are two other rear cap retaining bosses 2 '.

Assemble a shaft (8) receiving the rotation of the handle (1) to the inner drum (14) which is magnetized so that the S pole and the N side are alternately divided into 100 to the outside, and the shaft (8) is handle plate (3). Assemble to the oilless bearing assembled in the) and insert into the assembly hole of the handle (1) and then fixed. It is possible to assemble the stop position of the inner drum 14 by allowing the assembly groove 4 to the handle plate 3 inward to assemble the outer protrusion 5 of the outer drum 15.

Subsequently, two magnetic sensors 10 are installed on the circular substrate 16 into which the electronic components are inserted. When the inner drum 14 rotates, the magnetic flow is detected between the inner drum 14 and the outer drum 15. In order to convert into an electrical signal, as shown in FIG. 3 (a), two magnetic sensors 10 are assembled in the inner groove 13 of the outer drum 15, respectively. Then, a terminal block 18 having four signal output terminals is assembled, and then assembled to two substrate fixing assembly bosses 2 formed on the handle plate 3, and a rear cap 19 for protecting the components is provided. Coupled to the handle plate (3) and fastened with two rear cap fixing bolts 20 made of a finished product as shown in FIG.

The magnetic sensor 10 penetrates magnetically from the N pole to the S pole, which outputs a high level when the magnetic force flows through and becomes a low level when the magnetic force flows in the opposite direction. That is, when the inner drum 14 rotates, the magnetic force penetrates the magnetic sensor 10 and flows from the N pole to the S pole (output is at a high level), and then the magnetic flow crosses from the S pole to N (the output is at a low level). This results in a pulse signal.

Therefore, the manual pulse generator of the present invention is the outer drum (15) formed with the outer protrusion (5) and the inner groove (3) is coupled to the inner drum (14) to the shaft (8) rotates inside the handle (1) The magnetic sensor 10 on the board | substrate 16 is installed in the inner groove 13 of the said outer drum 15, and it is comprised so that the side surface of the said inner drum 14 may pass.

Manual pulse generator operation of the present invention configured as described above with reference to Figures 3 and 4 as follows.

As for the stop method using the manual pulse generator of the present invention, as shown in FIG. 3 (b), the inner drum 14 and the outer drum 15, which are plastic injection magnets magnetizing magnets on the S-pole and the N-side, respectively. Since they are operated and stopped by each other's magnetic force, there is no noise or wear.

Accordingly, when the handle 1 is manually rotated, the inner drum 14 coupled to the inner rotation shaft 8 rotates, and the inner drum 14 rotates, and the handle 1 is positioned at a position to stop anywhere. When the inner drum 14 is stopped opposite to the north pole and the south pole magnetized inward and outward on the outer drum (15). At this time, the magnetic force of the inner drum (14) and the outer drum (15), which are plastic injection magnets, is attracted by the poles to generate a suction force, and the exact stop position can be obtained by this force, as shown in FIG. When the inner drum 14 rotates, the magnetic flow between the inner drum 14 and the outer drum 15 stopped by the two magnetic sensors 10 on the substrate 16 is detected. In proportion to rotation, it converts into 100 corresponding electric signals on 100 A and B phases (see Fig. 4). This uses the magnetic sensor 10 in the inner groove 13 of the outer drum 15 through which the inner drum 14 passes, as shown in FIGS. 3 and 4 to obtain an electrical signal.

In addition, even if the inner drum 14 and the outer drum 15, which are plastic injection magnets, stop deviating from each other, the position correction can be precisely matched by the attraction force and the repulsion force of the magnetic force. Since the two magnetic sensors 10 are placed in the inner groove 13 of the outer drum 15, it is possible to reduce components such as conventional photoplates, springs, pins and plates, thereby reducing assembly labor and cost. In addition, as described above, by reducing the number of parts to reduce the thickness of the product can be somewhat overcome the constraints of the use environment.

[Effect of design]

As described above, according to the present invention, the magnetism of the S pole and the N pole is magnetized on the inner drum and the outer drum without using a conventional spring, and thus the magnet is stopped at the correct position by using the suction force and the repulsive force of the magnetic force. It is possible to provide an improved manual pulse generator that can reduce costs by eliminating excessive wear and wear, and at the same time providing a soft feel and by installing a magnetic sensor in the inner groove of the outer drum to reduce the number of parts and reduce the assembly time. Can be.

Claims (1)

An axis (8) in which a scale (1A) equal to 100 is stamped on the handle (1) to which the handle (21) is attached and the scale (3A) based on the handle plate (3) on which the rear cap (19) is assembled is stamped and rotated (8). In the manual pulse generator capable of outputting a corresponding pulse signal proportional to the rotation angle of the), the inner drum in which the N pole and the S pole corresponding to the individual scales 1A of the handle 1 are repeatedly magnetized on the outer surface. (14) is coupled to the shaft (8), the N and S poles are repeatedly magnetized on the inner side and the outer drum (5) having the substrate (16) coupled to the bottom surface is coupled to the hand plate (3). In addition, the inner drum (14) rotated together with the shaft (8) is installed on the substrate (16) while being stopped by magnetic force with the outer drum (15), so that the inner groove of the outer drum (15) Manual pulse generator, characterized in that the stop position is detected by the magnetic sensor 10 protruding to 13).