KR101649261B1

KR101649261B1 - Automatic calibration devices for dentistry

Info

Publication number: KR101649261B1
Application number: KR1020150130643A
Authority: KR
Inventors: 함완식
Original assignee: 함완식
Priority date: 2015-09-15
Filing date: 2015-09-15
Publication date: 2016-08-18

Abstract

The present invention relates to a dental automatic calibration apparatus, and more particularly to a dental automatic calibration apparatus, which is equipped with a contact tip to be contacted for measuring the position and the tool length of an object to be measured, A mechanical part equipped with a machine body; A first relay electrically connected to the machine body installed in the machine unit; A second relay electrically connected to the object arranged and fixed to the mechanical unit; A power supply unit having a Switching Mode Power Supply (SMPS) for supplying DC power required for driving the first relay and the second relay; And a measurement driving program for measuring the position and the tool length of the object, wherein the contact tip of the machine body, which is driven in accordance with a driving program for measurement in an on driving state of the first relay, And a controller for receiving and storing the position signal of the current operating point of the second relay when the second relay is operated.
According to the dental automatic calibration apparatus proposed in the present invention, a first relay is connected to a machine body having a contact tip, a second relay is connected to an object to be measured, The controller receives the position signal of the current point of the second relay operated by contacting the contact tip of the machine body with the object during the mechanical operation to calculate the position signal value A corresponding value can be stored as an object position and tool length measurement value.
Further, according to the present invention, since the position and the tool length of an object are measured using an electrical signal of a relay, it can be manufactured more simply and inexpensively than an existing measuring apparatus, It can be applied to most equipment requiring position measurement and tool length measurement, and it is possible to improve the accuracy and reduce the measurement time compared to the manual operation measurement method by the existing operator.

Description

{AUTOMATIC CALIBRATION DEVICES FOR DENTISTRY}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic calibration apparatus for dental use, and more particularly, to an automatic calibration apparatus for a dental apparatus which can measure an object position and a tool length using an electrical signal of a relay.

In general, when a tooth is damaged due to tooth decay, gingival diseases or trauma, the damaged tooth is restored by using artificial material, thereby restoring the reduced function, appearance, and pronunciation to the normal state. . For example, when one tooth is damaged, the entire tooth is first cut 1 to 1.5 mm, and then a model is made by pouring gypsum on the impression material, and then the model is photographed or scanned. The 3D shape was extracted from the image or image by software and then the artificial tooth was processed by using the multi - axis tooth machine.

On the other hand, the development of CAD / CAM technology has brought great innovation throughout the industry, and CAD / CAM technology is not limited to the industrial field for production, It is spreading widely. Particularly, as the CAD / CAM technology develops in the field of dentistry, the use of the CAD / CAM technique has become the main concern. In order to do this, 3D scanning of the in-mouth impression model is indispensable. However, in order to apply the machining data designed on the computer based on the image obtained by 3D scanning of the intraoral impression model, the coordinate data of the image must be synchronized with the coordinate system of the multi-axis processor in order to be applied to the impression model. In order to accomplish the object of coordinate synchronization, the coordinate system of the image of the object to be processed with respect to the scanning device is secured by scanning the object by positioning the object at a specific position. Korean Patent Publication No. 10-0979693, Korean Patent Publication No. 10-0982778, and Korean Patent Publication No. 10-1098901 disclose prior art documents of a tooth-cutting machine.

In order to cut an artificial tooth using such a conventional tooth-cutting machine, it is required to accurately measure the position of the object and the length of the tool used for cutting. Based on the measured position of the object and the measured value of the tool length The machining process is performed with the design data of the 3D scanning image. However, conventionally, the measurement of the position and the tool length of the object is manually performed by manually transferring the machine, judging the position of the object by directly contacting the tool with the object, and then storing the corresponding value. And there is a problem that accuracy is deteriorated due to occurrence of an error according to skill of a worker. In other words, even if accurate three-dimensional design process data is secured by utilizing CAD / CAM technology, if errors occur in the measurement of the position and tool length of the object as a reference for machining, There was a problem.

The present invention has been proposed in order to solve the above-mentioned problems of the previously proposed methods. The present invention relates to a method of connecting a first relay to a machine body having a contact tip, connecting a second relay to an object to be measured, The position of the current point of the second relay operated as the object contacts with the contact tip of the machine body during machine operation is transmitted to the controller And an object of the present invention is to provide a dental automatic calibration apparatus which can store a corresponding value calculated through calculation of a signal value as a position and a tool length measurement value of an object.

Further, the present invention is configured to measure the position and the tool length of an object by using an electrical signal of a relay, so that it can be manufactured more simply and inexpensively than an existing measuring apparatus. By driving a machine by creating a driving program for measurement It is an object of the present invention to provide a dental automatic calibration apparatus which can be applied to most equipment requiring position measurement and tool length measurement and which can improve accuracy and measurement time compared to a manual operation measurement method by existing operators For another purpose.

According to an aspect of the present invention, there is provided an automatic calibration apparatus for dental use,

As a dental automatic calibration apparatus,

A mechanical device having a machine body provided with a contact tip to be contacted for measuring the position and the tool length of the object to be measured;

A first relay electrically connected to the machine body installed in the machine unit;

A second relay electrically connected to the object arranged and fixed to the mechanical unit;

A power supply unit having a Switching Mode Power Supply (SMPS) for supplying a DC power required for driving the first relay and the second relay; And

And a measurement drive program for measuring a position and a tool length of the object, wherein the contact tip of the machine body, which is driven in accordance with a drive program for measurement in an on drive state of the first relay, And a controller for receiving and storing the position signal of the current operating point of the second relay when the second relay is operated.

Preferably, the first relay includes:

(+) Terminal of the input stage is connected to the (+) terminal of the SMPS and the (-) terminal of the input stage is connected to the output terminal of the controller, and the second relay acting solid state relay (-) terminal of the SMPS to a relay contact input terminal of an output terminal, and a connection structure of the relay contact output terminal of the output terminal is connected and connected to the machine body via a wire.

More preferably, the second relay includes:

(+) Terminal of the input terminal is connected to the (+) terminal of the SMPS and a (-) terminal of the input terminal is connected to the (-) terminal of the SMPS to a relay contact input terminal of the output terminal, and a relay contact output terminal of the output terminal is connected to and connected to an input terminal of the controller through an electric wire, .

Preferably, the power supply unit includes:

And a circuit protector for blocking the output of the SMPS when the limit current due to overload is exceeded in the SMPS.

More preferably, the controller includes:

The machine body is driven according to the driving program for measurement so that the contact tip provided on the machine body can be driven and controlled to contact the object.

Even more preferably,

A value is calculated using the position signal of the operating point of the second relay, and the corresponding value calculated through the calculation result can be stored as the position and the tool length measurement value of the object.

According to the dental automatic calibration apparatus proposed in the present invention, a first relay is connected to a machine body having a contact tip, a second relay is connected to an object to be measured, The controller receives the position signal of the current point of the second relay operated by contacting the contact tip of the machine body with the object during the mechanical operation to calculate the position signal value A corresponding value can be stored as an object position and tool length measurement value.

Further, according to the present invention, since the position and the tool length of an object are measured using an electrical signal of a relay, it can be manufactured more simply and inexpensively than an existing measuring apparatus, Can be applied to most equipment requiring position measurement and tool length measurement, and it is possible to improve the accuracy and reduce the measurement time compared to the manual operation measurement method by the existing operator.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram of a functional block of a dental automatic calibration apparatus according to an embodiment of the present invention; FIG.
2 is a circuit diagram of a dental automatic calibration apparatus according to an embodiment of the present invention;
3 is a circuit diagram of a power supply unit applied to an automatic dental calibration apparatus according to an embodiment of the present invention.
4 is a view showing a sequence of a measurement principle of an automatic dental calibration apparatus according to an embodiment of the present invention;

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, in order that those skilled in the art can easily carry out the present invention. In the following detailed description of the preferred embodiments of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear. In the drawings, like reference numerals are used throughout the drawings.

In addition, in the entire specification, when a part is referred to as being 'connected' to another part, it may be referred to as 'indirectly connected' not only with 'directly connected' . Also, to "include" an element means that it may include other elements, rather than excluding other elements, unless specifically stated otherwise.

FIG. 1 is a block diagram of a functional block of a dental automatic calibration apparatus according to an embodiment of the present invention. FIG. 2 is a diagram showing a circuit configuration of a dental automatic calibration apparatus according to an embodiment of the present invention. FIG. 3 is a circuit diagram of a power supply unit applied to a dental automatic calibration apparatus according to an embodiment of the present invention. 1 to 3, a dental automatic calibrating apparatus 100 according to an embodiment of the present invention includes a mechanical unit 110, a first relay 120, a second relay 120, 130, a power supply unit 140, and a controller 150. [

The mechanical unit 110 includes a machine body 113 having a fixed object 111 to be measured and a contact tip 112 for contacting the object 111 and measuring the tool length . The mechanical device unit 110 includes a contact tip 112 provided on the machine body 113 as the machine body 113 is driven and moved according to a previously stored measurement drive program written in the controller 150 So that it can be driven to be in contact with the object 111.

The first relay 120 has a configuration of a relay device electrically connected to the machine body 113 provided on the machine unit 110. The first relay 120 may be a solid state relay used as an operation of the second relay 130, which will be described later. 2, the first relay 120 includes two connection terminals at an input terminal 121 and two connection terminals at an output terminal 124. [ That is, the (+) terminal 122 of the input terminal 121 of the first relay 120 is connected to the (+) terminal of the SMPS 141 to receive +24 V, The control unit 123 is connected to the output terminal 151 of the controller 150 and is configured to receive a control signal input from the output terminal 151 of the controller 150. The relay contact input terminal 125 of the output terminal 124 of the first relay 120 is connected to the negative terminal of the SMPS 141 and the relay contact output terminal 126 of the output terminal 124 is connected to the wire And is connected to and connected to the machine body 113 through the intermediary of the connector.

The second relay 130 has a configuration of a relay device electrically connected and connected to an object 111 placed and fixed to the mechanical unit 110. The second relay 130 may be configured as a solid state relay that operates when the contact tip 112 of the machine body 113 and the object 111 are in contact with each other. 2, the second relay 130 includes two connection terminals at an input terminal 131 and two connection terminals at an output terminal 134, as shown in FIG. That is, the (+) terminal 132 of the input terminal 131 of the second relay 130 is connected to the (+) terminal of the SMPS 141 to receive +24 V, (133) is connected to the object (111) by means of an electric wire. The relay contact input terminal 135 of the output stage 134 of the second relay 130 is connected to the negative terminal of the SMPS 141 and the relay contact output terminal 136 of the output stage 134 is connected to the controller 150 connected to the input terminal 152 of the input / output terminal. At this time, the second relay 130 is operated as the contact tip 112 provided on the machine body 113 and the object 111 come into contact with each other during the mechanical operation, and the position signal of the current point operated is transmitted to the controller 150 And is output to the input terminal 152 for transmission.

The power supply unit 140 includes a power supply unit including a SMPS 141 for supplying DC power for driving the first relay 120 and the second relay 130. 3, the power supply unit 140 may include a circuit protector 142 for blocking the output of the SMPS 141 when the limit current due to overload is exceeded in the SMPS 141 And the like. At this time, the L terminal of the circuit protector 142 is a current line (voltage line), the N terminal is a neutral line, and the FG of the SMPS 141 means a frame ground. Here, the circuit configuration of the SMPS 141 and the circuit protector 142 provided in the power supply unit 140 corresponds to a power supply unit provided in a normal control device, and therefore, an unnecessary description will be omitted.

The controller 150 is configured to include a measurement drive program for measuring the position and the tool length of the object 111. [ The controller 150 controls the second relay 120 such that the contact tip 112 of the machine body 113 driven in accordance with the measurement drive program contacts the object 111 in the on- When the second relay 130 is operated, receives the position signal of the current operating point of the second relay 130 and stores the received signal. The controller 150 drives the machine body 113 in accordance with the created measurement drive program so that the contact tip 112 provided on the machine body 113 can be driven and controlled to come into contact with the object 111. [ The controller 150 calculates a value using the position signal of the operating point received through the second relay 130 and calculates the position of the object 111 and the tool length Value. The position and the tool length measurement value of the object 111 stored in the controller 150 can be utilized for various operations by the operator. That is, it can be used in an automatic calibration apparatus of a tooth machine, or in measuring a diameter of a specimen of a specimen processing machine and measuring a starting point of a machining process. In addition, it can be used in the measurement field to measure the tool wear amount correction measurement, the straightness of the machine, and the perpendicularity so that the machine assembly state or the deformation of the machine can be known.

FIG. 4 is a diagram illustrating a procedure of a measurement principle of the dental automatic calibration apparatus according to an embodiment of the present invention. 4, when the start button for position measurement is operated by the operator to turn on the measuring instrument, the SMPS 141 of the power supply unit 140 is operated and then the first relay 120 Is in the On operation state. 1 and 2, a dental automatic calibration apparatus 100 according to the present invention includes a machine body 113 and an object 111 on a first relay 120 and a second relay 130, And the controller 150 assumes a state in which the corresponding measurement drive program is created and stored. Next, when the operator starts the measurement, the controller 150 drives the machine body 113 by providing the drive control signal to the machine body 113 by the created measurement drive program. When the machine body 113 and the object 111 are in contact with each other during the mechanical operation, the second relay 130 is operated. When the second relay 130 is operated, the position signal of the current point is transmitted to the controller 150 , The controller 150 calculates the value using the corresponding signal and stores the corresponding value. The worker can utilize the stored value to utilize the work.

According to the dental automatic calibration apparatus of the present invention as described above, the position signal of the current point of the second relay, which is operated when the contact tip of the machine body is contacted with the object, It is possible to store the corresponding value calculated through the calculation of the position signal value as the position and the tool length measurement value of the object and the measurement method using the electrical signal of the relay, It can be applied to most equipment requiring position measurement and tool length measurement by driving the machine through the creation of the drive program. It can improve the accuracy and reduce the measurement time compared to the manual operation measurement method by the existing operator . Particularly, the present invention can be applied to a specimen processing machine in which a diameter of a specimen and measurement of a starting point of the specimen are required as well as an automatic calibration device for a dental machining tool. The tool wear amount correction measurement, the straightness, It is also applicable to equipment that enables to know the state of machine assembly and deformation of machine.

The present invention may be embodied in many other specific forms without departing from the spirit or essential characteristics of the invention.

100: a dental automatic calibration device according to an embodiment of the present invention
110: mechanical part 111: object
112: Contact tip 113: Machine body
120: first relay (CRSSR) 121: input terminal
124: Output stage 130: Second relay (SSR)
131: input stage 134: output stage
140: Power supply unit 141: SMPS
142: Circuit protector 150: Controller
151: Output terminal 152: Input terminal

Claims

A dental automatic calibration apparatus (100) comprising:
A mechanical part 110 provided with a machine body 113 on which an object 111 to be measured is placed and fixed and which has a contact tip 112 for contacting the object 111 and measuring the position of the object 111;
A first relay (120) electrically connected to the machine body (113) installed in the machine unit (110);
A second relay (130) electrically connected to the object (111) arranged and fixed to the machine unit (110);
A power supply unit 140 having an SMPS 141 (Switching Mode Power Supply) for supplying DC power required for driving the first relay 120 and the second relay 130; And
And a driving program for measurement for measuring the position and the tool length of the object 111. The machine body 113 driven according to the driving program for measurement in the on driving state of the first relay 120, A controller 150 for receiving and storing a position signal of a current operating point of the second relay 130 when the contact tip 112 of the second relay 130 contacts the object 111 and the second relay 130 is operated, Wherein the dental automatic calibration device comprises:

The apparatus of claim 1, wherein the first relay (120)
The positive terminal 122 of the input stage 121 is connected to the positive terminal of the SMPS 141 and the input terminal 121 is connected to the positive terminal of the SMPS 141. The solid- ) Terminal 123 of the SMPS 141 is connected to the output terminal 151 of the controller 150 and connected to the relay contact input terminal 125 of the output terminal 124 And connected to the relay contact output terminal (126) of the output terminal (124) via a wire to connect to the machine body (113).

3. The apparatus of claim 2, wherein the second relay (130)
(+) Terminal 132 of the input terminal 131 is connected to the SMPS (not shown) of the input terminal 131. The solid state relay operates when the contact tip 112 of the machine body 113 contacts the object 111, (-) terminal 133 of the input terminal 131 is connected to the object 111 through an electric wire, and the relay contact input terminal 135 of the output terminal 134 is connected to the (+) terminal of the output terminal 134, Connected to the negative terminal of the SMPS 141 and connected to the relay contact output terminal 136 of the output stage 134 through the input terminal 152 of the controller 150 Wherein the dental automatic calibrating device is a dental automatic calibrating device.

The power supply unit according to any one of claims 1 to 3, wherein the power supply unit (140)
Further comprising a circuit protector (142) for blocking the output of the SMPS (141) when the limit current due to overload is exceeded in the SMPS (141) .

5. The apparatus of claim 4, wherein the controller (150)
Wherein the machine body 113 is driven according to the driving program for measurement so that the contact tip 112 provided in the machine body 113 is driven and controlled to contact the object 111. [ Calibration device.

6. The apparatus of claim 5, wherein the controller (150)
Wherein the controller calculates the value using the position signal of the operating point of the second relay and stores the calculated value as the position and the tool length measurement value of the object 111. [ Automatic calibration device for dentistry.