JPH1058281A - Measuring or machining system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To quickly, accurately and economically form a dental prosthesis out of titanium, ceramic and composite resin material by providing a machining means for cutting a lump type material on the basis of data. SOLUTION: A shape is accurately measured, with a measurement element 20 attached to a device, and a model so prepared mounted on a rotary jig 87. In this case, the rotation of the rotary jig 87 is accurately reversed, so as to accurately measure the shape, thereby measuring the complete shape. A cutting tool 19 suitable for a cutting process, after selected, substitutes the measurement element 20 so far attached. Then, a lump type material is mounted on the rotary jig 87, and cut with the new cutting tool 19 on the basis of the measurement data, thereby manufacturing a desired prosthesis.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a computer-controlled automatic measurement and an apparatus for performing automatic processing based on the measurement information. On the other hand, the present invention more specifically relates to a computer system for shape design, an NC apparatus of a servo control type, and an apparatus therefor. A single CA consisting of a mechanism for controlling the condition of the axis to be added
By using automatic measurement and automatic processing means typified by a D / CAM system, various materials such as dental prosthesis materials, which have been difficult in the past, can be cut and processed to produce precise dental prostheses and other dental materials. The present invention relates to a system for manufacturing a workpiece that is the same, similar, or corresponding to medical materials, various imitations, and objects to be measured.

[0002]

2. Description of the Related Art A doctor forms an abutment on a treated tooth of a patient, 2 obtains an impression of a tooth condition with an impression material, and 3 reproduces a copy with an impression plaster. 4 Dental technician wax-ups on the duplicate, 5 Creates a dental prosthesis of metal (gold-silver-palladium alloy) by casting the completed wax pattern by the so-called lost wax method, and 6 Performs a trial in the oral cavity to adjust and match the mismatched part.

[0003] or 1. A physician performs an abutment on the treated tooth of the patient; 2. Tooth impression is obtained by impression material. 3. Make a copy with impression plaster; 4. Make a copy of the impression plaster with fire-resistant gypsum. 5. A dental technician applies dental porcelain with a brush on the refractory gypsum and sinters it to create a core frame. Apply porcelain for finishing to the completed core frame,
6. re-sintering to make a ceramic dental prosthesis; The doctor performs an oral trial on the patient and adjusts and matches the mismatched part.

[0004] Or, 1. A physician performs an abutment on the treated tooth of the patient; 2. Tooth impression is obtained by impression material. 3. Make a copy with impression plaster; 4. The shape of the gypsum is measured with a three-dimensional measuring device, and the measured data is transferred to a CAD / CAM system. 5. Convert the abutment data to the inner surface data of the dental prosthesis with the CAD / CAM system; 6. The prosthesis crown data stored in advance is deformed according to the size of the inner surface data, and is modeled as a dental prosthesis shape by superposition. 7. Dental prosthesis is manufactured by cutting the completed dental prosthesis shape model using an NC machine; The doctor performs an oral trial on the patient and adjusts and matches the mismatched part. The way to say has been taken.

[0005] When an NC machining tool is used, the way of movement of a measuring instrument or a machining instrument is determined by an X-axis or a Y-axis.
A method of fixing the axis and moving the Y axis or the X axis and the Z axis is general. That is, this is a method of moving the measuring device or the processing device in parallel with the rectangular coordinates.

[0006]

However, in the above-described conventional method, the number of procedures is large, and time and labor are required. In addition, since the impression material is used to indirectly take the form of the patient's teeth, there is a disadvantage that the form cannot be accurately obtained due to the accuracy of the material. Generally, it is a dental hygienist who takes an impression at a dental care site, so that the dental hygienist greatly depends on the skill of the dental hygienist, and there is a factor that it is difficult to take an accurate shape of the treated tooth. In addition, since the lost wax method is used, prostheses are limited to castable metals, and have disadvantages such as easy occurrence of metal allergy and poor aesthetics. In casting, thermal expansion and contraction occur, and this error cannot be ignored. For this reason, as a material close to a living body, a method of manufacturing a dental prosthesis using a porcelain such as porcelain or glass ceramics has been considered.However, a method using a porcelain requires skill, During sintering of the core frame, the work is complicated, complicated and troublesome due to breakage, and is not yet generally used. In recent years, due to advances in computer technology and NC machines, attempts have been made to manufacture dental prostheses using these. However, in this method, the abutment data is measured using a three-dimensional measuring device, so that the abutment data is obtained. At the time of conversion to crown inner surface data, the conversion principle at the present time inevitably causes an error and deteriorates compatibility, so sufficient accuracy cannot be obtained, and various equipment is added to sufficiently satisfy the accuracy And the machinery and equipment had to be large.

A stepping motor or a servomotor is used as a motor for controlling the position of the NC machine tool. The operation of the stepping motor or the servomotor is controlled by an open loop system which only discharges data to the motor. I have. Therefore, when performing accurate three-dimensional measurement or three-dimensional processing, it is necessary to precisely operate the motor. In addition, as described above, the operation of the motor is not confirmed, and the open loop method is used to send the processing data to the motor side. Therefore, the operation of the motor, that is, the movement amount of each axis table, is confirmed. If the accuracy of the motor cannot be obtained because of the lack of accuracy, accurate three-dimensional measurement and three-dimensional processing cannot be performed.

Further, when the shape of the object is cylindrical or spherical,
When the shape changes radially, it is pointed out that measurement or processing cannot be performed with high accuracy if measurement or processing is performed in accordance with conventional rectangular coordinates.

On the other hand, with regard to jigs and the like used for measurement and machining under computer control, the NC machine tool is also provided with a jig for mounting measurement and machining equipment, a measurement model, and a work with the main body. Therefore, measurement and processing methods are limited. Since the measuring and processing equipment is individually installed and fixed, a surface that cannot be measured and processed appears, so that three-dimensional processing becomes impossible. In addition to the above, in addition to performing computer-based correction of the measured position data to the position data for processing, when mounting the drill on the motor for processing equipment, the position of the drill tip for processing is measured from the position of the front end of measurement. It was also necessary to correct the data for the position, which took a considerable amount of time for production. Further, when the measuring equipment and the processing equipment are damaged, the measurement and processing must be performed from the beginning due to the necessity of data correction, which is complicated.

When a medical material and a dental material are cut by hand, a large amount of labor and manufacturing time are required. Therefore, the NC machine tool may be used as described above. The processing method is limited, and depending on the object to be processed, the vibration of the drill and the scattering of cuttings during the processing may damage the measuring device. Further, the processing time is increased due to the necessity of correcting the data taken in at the time of processing at the time of processing, and the accuracy of completed processed products such as medical materials and dental materials is reduced due to occurrence of errors. Further, when the measurement equipment or the processing equipment is damaged, the measurement and processing must be performed from the beginning because of the necessity of data correction, and further time is required.

Therefore, it is required to improve the accuracy in cutting medical materials and dental materials, to shorten the manufacturing time, and to perform re-measurement / re-workability from the middle even if measurement / work is interrupted. Further, when measurement and processing are performed using an NC machine tool, the use of a plurality of devices is expensive in terms of capital investment and the like. There is a need for a system that solves the above problems and that is more compact, easier to handle, faster, and capable of more accurate measurement and processing.

[0012]

SUMMARY OF THE INVENTION An object of the present invention is to provide a model-based shape, structure, color, and one or more of the above-mentioned dental and other biological prostheses, implants, seals, ornaments, and the like. A computerized CAD / CAM system or the like can be used to manufacture a partially or entirely modified or improved copy having the combination of A device having a driving unit such as a measuring unit, a structure having a structure that replaces only a cutting unit, or a device having both at the same time, and preferably measures a model based on a single closed-loop servo control system. Another object of the present invention is to propose a measurement processing system that can perform precision, accuracy, and labor saving by cutting a dental material having excellent biocompatibility.

According to the present invention, when measuring an object to be measured such as a model, or when cutting a massive object based on data, it is possible to improve the accuracy by performing the following measurement or processing. And That is, a circumcircle is created according to the shape of the medical material or the dental material, and the measuring device or the processing device is moved radially from the center point. Therefore, the shape that changes radially can be measured or processed with high accuracy.

However, in the case of the radial shape, as the distance from the center point increases, the accuracy is degraded. In order to cope with this, by radially dividing the beam and measuring or processing it in parallel with the rectangular coordinates, Can make up for the problem. In addition, the image is divided into concentric circles for each distance of a certain radius from the center point. The problem can be compensated by radially measuring or processing the portion close to the center point, and then expanding and measuring the portion near the center point twice more evenly.

Further, according to the present invention, a detachable type and a unified structure, having a function of mounting, replacing and rotating, a plurality of functions are provided, and a motor and a drill of a cutting machine are integrated with each other. To accurately locate and fix workpieces used as measuring and processing equipment, measuring models, medical materials and dental materials.

The above-described three-dimensional measurement includes, for example, a contact type measuring device using a probe or the like, a laser non-contact type three-dimensional measuring device using a laser beam, and the like. As the three-dimensional machining device, for example, cutting drilling, electric discharge machining, stereolithography, and the like are shown. Medical materials shown in the present invention, for example, bone plate,
The materials used in osteosynthesis, artificial bones, artificial joints, artificial organs, and other medical prostheses are shown. Dental materials may be used in dental prostheses, dental implants, or other dental treatments, or may have a shape, structure, color, and one or more combinations thereof based on a model, such as seals, decorations, and the like. Reproducible or partially or wholly replicas are modified or improved. The material of the lump, ie, the workpiece, described in the present invention is ceramic, metal, synthetic resin, or any other material that can be subjected to three-dimensional processing by a three-dimensional processing machine tool, and is not particularly limited as long as it can be processed. or,
The mass may be any material as long as it can be processed, and its material and shape are appropriately selected depending on the object to be processed, and examples thereof include a plate shape, a linear shape, and a granular shape. A central processing unit is a personal computer, a workstation, or any other device equipped with a central processing unit, regardless of whether it is general-purpose or dedicated. However, any device that can process data may be used. As a peripheral device for storing data, a hard disk, a floppy disk, a magneto-optical disk, a random access memory, an IC card or any other device for storing data may be used, and analog or digital data may be temporarily stored. Alternatively, any device that can be stored and stored continuously can be suitably used, and is not particularly limited. As a method of moving three-dimensionally, a method using an X-, Y-, or Z-axis table, a method using an arm type used in an industrial robot or the like can be considered. Encoders for detecting the position include a linear encoder attached to each axis table and a rotary encoder attached to a servomotor that is the power of each axis table. The illustration of each component configuration shown above is not limited to this.

The measuring and processing means in the present invention is C
AD / CAM, NC machine tools, etc. can be used. The measuring devices include contact type three-dimensional measuring devices, measuring devices using laser and light, and the processing devices include cutting drills, stereolithography,
Machining equipment using electric discharge machining can be used.

[0018]

According to the present invention, a dental prosthesis made of titanium, ceramics, and a composite resin material, which has been difficult with the conventional casting method, can be manufactured quickly, accurately, and economically. In the present invention, a closed loop servo control method is used as a preferred example. That is, the numerical controller outputs a movement command to the motor used in the measuring and cutting machine, and when the motor moves, the movement amount is pulsed by a rotary encoder attached to the motor or a linear encoder attached to the moving shaft. The output pulse data is fed back to the numerical controller, so that accurate position detection can be performed and movement and stop can be performed with high accuracy. In the present invention, this pulse data is sent to a numerical controller and simultaneously to a computer system for creating measurement data. The computer system has an interface that receives an analog signal from an analog displacement contact probe attached to the spindle, converts it internally as digital data, and based on this digital data, the computer system issues a move command to the numerical controller. Is output, and when the motor operates and each axis (3 axes) moves,
A displacement is generated between the contact type probe and the dental prosthesis model with which the contact type probe is in contact. At this time, since the pulse data from the encoder is directly input to the computer system, the computer system can check in real time whether the movement amount commanded to the numerical controller is being executed correctly, and the contact-type probe It is possible to stably measure the shape of the continuous dental prosthesis model without giving excessive stress to the model. The measured data is data in which the increment of the radius of the tip sphere of the contact measuring element is weighted. For this reason, the computer system can obtain the surface data of the dental prosthesis by subtracting the numerical value corresponding to the radius of the tip sphere from all the acquired data. The subtraction algorithm calculates the normal vector of the inclination of the surface of the dental prosthesis by differentiating the motion of the contact type probe, and subtracts the radius from this direction.

According to the closed-loop control described in detail above, it is possible to manufacture a medical or dental material with high accuracy by performing three-dimensional measurement and three-dimensional processing. When a personal computer is used, the processing speed of closed-loop three-dimensional measurement and three-dimensional processing is a problem, but high-speed measurement and processing can be achieved by distributing the processing to a plurality of central processing units.

Processing the data obtained as a result of the measurement,
Based on the acquired accurate surface data of the dental prosthesis, a system consisting of a computer etc. that sends the processing data to the processing equipment, based on the characteristics of the prepared dental material block (workpiece), optimizes the tool, processing speed, A machining path or the like is automatically selected to generate machining numerical control data (G code).
Cutting is performed by sending the numerical control data for processing to an NC processing machine. In the present invention, since a measuring instrument for performing measurement and an NC processing machine for performing processing are realized by only one CAD / CAM system, cost reduction and size reduction can be achieved.

Further, according to the present invention, the shape around a model having a circular, elliptical, polygonal, or other complicated shape can be measured or processed with high precision in detail by using radial measuring or radial processing means. .

A detachable jig in which the position of the jig for fixing the measuring and processing equipment, the measurement model and the workpiece is precisely determined, and the jig can be unified, so that the mounting and exchange can be mutually performed. It becomes possible, and by rotating the jig, the measurement model and the workpiece can be measured and processed with high three-dimensional accuracy. Furthermore, the measuring equipment and the processing equipment can be installed on the same base jig, and the driving body such as a motor and the processing body such as a drill are integrated, and the shape is the same or correlated with the measuring body such as a measuring probe. In addition to improving data accuracy by eliminating the need for data correction processing and eliminating almost no errors, measurement and processing from interruptions can be performed even when measurement and processing equipment is damaged. It will be easier. Also, with a single device using CAD / CAM, various measurement and processing means can be obtained.
This realizes a reduction in capital investment and the like.

[0023]

FIG. 4 shows an embodiment of the present invention, which will be described in detail. Reference numeral (01) denotes a working unit which is configured by a general-purpose or dedicated NC machine tool or the like, and is a unit for performing measurement and processing. (0
Reference numeral 2) denotes a control unit, which is formed of a personal computer, a dedicated computer, a dedicated controller, or the like, which has at least a storage unit and a processing unit. FIG. 4 shows a personal computer (30). Control unit (02)
Includes means for storing information by various methods such as memory, magnetism, light, and magneto-optics, and means for calculating the information and instructing a work unit to perform an operation. Processing, recording, and transmission of information are mainly performed by a digital method, but are not limited thereto. Working unit (01) and control unit (0
2) is electrically connected by a connector (03) such as an electric lead wire.
The connection may be made by a wireless medium such as light, infrared, magnetism, electromagnetism, and ultrasonic waves. In the working unit (01), (11)
A Z-axis support member for sliding the Z-axis arm member (141) on the surface in the Z-axis direction and supporting the Z-axis arm member (141). (12) is X
This is a shaft motor for outputting motive power obtained by converting a rotational force into a sliding force, and for connecting and sliding the X-axis table member (9). (13) is a Y-axis motor, which outputs motive power obtained by converting rotational force into sliding force,
Further, it is connected to the Y-axis table member (10) to slide it. Reference numeral (14) denotes a Z-axis motor, which outputs motive power obtained by converting a rotational force into a sliding force, and is connected to the Z-axis arm member (141) to slide it. Reference numeral (15) denotes a spindle motor, which is used to rotate the drill when the drill is mounted during processing. Spindle motor (1
5) is connected to a mounting connector (41) for processing. The processing mounting connector (41) is for detachably connecting the cutting drill (19). Further, a mounting connector (42) for measurement to which the measurement probe (20) is detachably connected is provided adjacent to the spindle motor (15). (16) is a splash cover for preventing external scattering of shavings due to splashing and scattering of a lump during processing, and is fixed on an X-axis table member. (17) is a pedestal, which incorporates a holding part (87) for a rotary jig and a drive motor for rotating the same. The holding part (87) for a rotary jig is mainly for mounting a model for measurement and a lump for processing. The other (7) is the lower part of the machine, and (18) is
This is a rotating wheel, which is mounted at four corners on the bottom surface of the lower part of the machine so that the working unit (01) can be moved.

FIG. 1 is a drawing showing specific measuring and processing steps for an operation for quickly producing a dental prosthesis having good compatibility according to the present invention.
This will be described with reference to FIGS. 2, 3, 4, 10, and the like. The process of manually creating the object to be measured is shown in FIG.
Shown in 1). 1. In order to accurately obtain the patient's tooth morphology, a prosthesis model is formed directly on the patient's abutment with an immediate polymerization resin without using an impression material. For details, see FIG.
This is shown in steps 1), (2.1.2), and (2.1.3). 2. The prosthesis model is taken out of the patient's mouth after curing, and a model for measurement shown in FIG. 2 is obtained. FIG.
(B) (2.1.4) (Mounting Step) FIG. 10 (a) (2.2) shows a process of attaching the prototype. For example, an additional mechanism for measurement as shown in FIG. 3 is attached to this measurement model (FIG. 10 (c) (2.2.
1)), Rotating jig holding section (87) as shown in FIG.
Attach to (FIG. 10 (c) (2.2.2)) (FIG. 10
(C) (2.2.3))

(Automatic measurement step) FIGS. 10A and 2.3 show the steps of the automatic measurement.
Based on closed-loop servo control, etc.,
An analog contact probe having a complete spherical tip mounted coaxially with the spindle motor spindle (for example, FIG.
(20)), a computer system (for example, 30 in FIG. 4) having position detection pulse data from each motor shaft and an analog-digital conversion circuit is driven. FIG.
(D) (2.3.1), FIG. 10 (d) (2.3.2) This drive is, in detail, an X-axis motor (for example, 12 in FIG. 4),
A Y-axis motor (eg, 13 in FIG. 4) and a Z-axis motor (eg, 14 in FIG. 4) rotate, and the rotation causes an X-axis table (eg, 9 in FIG. 4) and a Y-axis table (eg, 9 in FIG. 4) connected to each motor. 4), a Z-axis arm (for example, 14 in FIG. 4).
Since the measuring element (20) or the model (57) moves so as to interlock by sliding 1) in each axial direction, the measuring element (20 shown in FIG. 4) comes into contact with the model (57). While moving on the surface, accurate coordinate values are read from the displacement amount based on the force applied to the tracing stylus (20) and the information based on the operation of each motor, and stored as numerical data in a computer (CAD / CAM) system. FIG. 10 (d)
(2.3.3) 3. A correction for the radius of the tip sphere of the tracing stylus is calculated by the computer system from the stored data to generate coordinate data of the surface of the model. 4. At this time, the computer system predicts the shape of the prosthesis model based on the sequentially read data, and thereby determines the amount of movement of the next measurement point, thereby enabling continuous measurement without waste. I can do it. 5. At this time, in order to accurately measure the shape, the complete shape of the front and back sides is measured using a jig that can be accurately inverted by 180 degrees as shown by the rotating jig (87). FIG. 10 (d)
(2.3.4), FIG. 10 (d) (2.3.5)

(Calculation Step of Obtained Data) FIG.
(A) (2.4) shows the calculation process. The processing path calculation software is started on the computer (30) shown in FIG. 4, the measurement data stored in the computer (30) is read, and the measurement data is converted into numerical data and converted into the processing data. Add data enlargement / reduction processing. In addition, a roughing pass is created,
Next, a finishing cutting path is created. Each is stored in the computer (30). In this case, it is assumed that the diameter and shape of a workpiece such as a drill used for roughing or finishing are set in advance.

(Processing Step) (FIGS. 10 (a) and (2.5)) show the processing steps. A cutting tool (eg, (19) in FIG. 4) is used instead of the tracing stylus (20) which has been mounted for measurement. 2. A lump (8) is attached to a lump (for example, as shown in FIG. 8).
12) with an adhesive or the like, or ribs (8
12) is formed by integral processing or the like.
The part 2) is mounted on a rotary jig (for example, (87) in FIG. 4). 3. First, a rough cutting process is performed from a computer (CAD / CAM) (30) based on data of a rough cutting pass.
This rough cutting is performed by an X-axis motor (for example, 12 in FIG. 4), a Y-axis motor (for example, 13 in FIG. 4), and a Z-axis motor (for example, FIG.
14) is rotated, and the rotation causes the X-axis table (eg, 9 in FIG. 4), the Y-axis table (eg, 10 in FIG. 4), and the Z-axis arm (eg, 11 in FIG. 4) connected to each motor to rotate. It slides in the axial direction, and the driven cutting tool (19) comes into contact with the lump, whereby the cutting tool (19) cuts the lump to perform the cutting. 4. Next, a computer (CAD / CAM) (30)
The finishing process is performed based on the data of the finishing pass. At this time, the drill is replaced or the like, and parameters and the like are changed based on the portion changed by the replacement or the like. 5. After the front surface is processed, the rotating jig holding section (87) rotates, and the back surface is cut. At this time, rough processing and finish processing are performed in order. (2.5.4) of FIG.
Shows that part. 6. After the processing is completed, the processed lump is removed from the holding member (87) for the rotary jig, and the ribs (shown by FIG. 8 (812)) are cut off (FIG. 10 (f) (2.5.5)). Titanium as a processing material used as a lump,
Dental ceramics, composite resins, and the like are preferable, but are appropriately selected according to the object to be processed. In addition, metals, ceramics, woods, and the like may be used.

Next, the operation of the embodiment for accurately and quickly producing a dental prosthesis having good compatibility will be described. Since the configuration and the like are the same as those in the above-described embodiment, the detailed description thereof will be omitted except for the numbering.

(Step of Creating Object to be Measured) 1. Obtain the patient's tooth morphology with an impression material; 2. Replicate the tooth morphology with impression plaster; A dental technician performs wax-up on the copy to form a wax model as a crown, and obtains a model as described in the first embodiment. (Measurement process) A measuring element (for example, (2 in FIG. 4)
0)), and the shape is accurately measured with this model mounted on a rotary jig (for example, (87) in FIG. 4). 5. At this time, in order to accurately measure the shape, the rotating jig (87) is accurately inverted and rotated to measure the complete shape. The operation of measurement is the same as the operation of the above-described embodiment. 6. The shape is digitized by a computer (CAD / CAM) (for example, (30) in FIG. 4) and temporarily stored. (Processing process) After selecting a cutting tool suitable for cutting, the cutting tool (for example, (19) in FIG. 4) is replaced with a tracing stylus (20) that has been mounted for measurement. 8. The lump is mounted on a rotating jig (for example, (87) in FIG. 4). 9. The mass is cut by the replaced cutting tool (for example, (19) in FIG. 4) to produce a desired prosthesis.
As the processing material, titanium, dental ceramics, composite resin and the like are used, but other materials are used according to the purpose as described above.

The various steps of the method will now be described in detail. As mentioned above, since the method does not require any manpower other than a series of operations for producing a dental prosthesis model, most of the operations constituting the method are automatically performed using appropriately controlled devices. It should be noted that what can be considered to be accomplished. Also, the materials shown for the formation of dental prostheses are materials that are currently commercially available and well known to dental professionals, but without departing from the scope of the present invention.
It should also be noted that other materials with equivalent functions can be devised and used. Indeed, the following detailed description of the method relates to its performance in modern dental workplaces, but is also evident for other embodiments that are at the industrial grade and use a variety of materials. Can adapt.

An embodiment shown in the method for manufacturing a dental prosthesis according to the present invention will be described with reference to FIGS. 1, 2, 3 and 4. In the examples described below, a dental prosthesis is called a crown. FIG. 1 shows a crown (47) made of dental metal titanium to be manufactured by the method for manufacturing a dental prosthesis of the present invention. In FIG. 1, gingiva (1), natural tooth root (3), abutment tooth (5)
The abutment has been formed by the dentist.
Hereinafter, a method for manufacturing the crown (47) shown in FIG. 1 will be described.

(Step of preparing object to be measured) First, as shown in FIG. 2, a dental prosthesis prototype (male) having exactly the same shape as the crown (47) in FIG.
(57) is preferably, but not limited to, an instantaneous polymerizable material such as a wax material for dental use (wax, photocurable resin, tech, etc.). It is preferable to use a member having immediate polymerizability, but the present invention is not limited to this.) (Step 1). The time required for this step is approximately 10 to 15 minutes.

(Measurement Step) Next, the male mold (57) is taken out of the patient's mouth, and is bonded to a measurement rib material (91) and a pasty adhesive (92) as shown in FIG. This is measured according to the invention. FIG. 4 shows an embodiment of the present invention, and a dental prosthesis will be manufactured using this system. First, the male-type rib shown in FIG. 3 is fixed to the rotating jig holder (87) shown in FIG. The fixed state is shown in FIG. The rotating jig holder (87) is attached to the pedestal 17 in FIG. (2nd process)
Next, the attached male mold is connected to the CAD / CAM of FIG.
The shape is precisely measured by the system. In this embodiment, a contact-type measurement probe unit (20) is used for the measurement. This contact-type measurement probe unit (20) has a structure as shown in FIG. 6, and is composed of a measuring instrument body 20-a and a contact probe 20-b, and the displacement of the contact probe 20-a. The coordinates of the surface of the object are determined based on the quantity and output as electric signals. Data controlled by the control computer (30) of FIG. 4 and measured by the measurement probe unit (20) is sent to the computer (30). The measured data is processed by a computer (30) for correction of a stylus radius offset and converted into data for cutting. In order to obtain the shape of the male mold (57) accurately,
As shown in FIG. 11B, measurement is performed in a radial direction from the center of the male mold. By doing so, the crown (4
7), the shape of the most important margin portion ((A2) in FIG. 11) can be accurately measured. Since the margin can be accurately machined in this way, when the workpiece (crown) is actually mounted, there is no gap at the contact portion with the mounted abutment tooth, thereby reducing the risk of secondary caries. And stable use is possible. The measurement was performed on the X-axis motor (12), Y-axis motor (13),
This is performed by controlling each axis of the Z-axis motor (14) according to a command from the computer (30). However, because of the three-axis control, only half the shape of the male mold (57) can be measured. For this reason, after the measurement of the other side is completed, the other side is already measured by inverting the male mold (57) by 180 degrees,
A complete three-dimensional shape can be measured. This inversion is accurately performed by a fitting mechanism with the pedestal (17) on which the rotating jig holder (87) is attached. Therefore, the error of the positional accuracy due to the inversion is suppressed to 5 microns or less. FIG. 7 shows the structure of this reversing mechanism. As shown in FIG. 7, the 90-degree rotation of the rotating jig holder (87) causes the male mold (57) connected thereto to rotate in conjunction therewith. The measured result is sent to a computer (30), and a crown shape design is performed. (Third Step) The time required for this step is approximately 0.
It is about 5 hours, but can be shortened.

(Processing step) Next, in order to cut the crown (47), in FIG.
5) Attach the end mill (19). Then, the cutting block (90) is attached to the rotating jig holder (87). The shape of the cutting block is a cylindrical or conical shape with ribs (FIG. 8 (812)) close to the dental prosthesis, and the shape is different in small units according to the finished size of the crown (47). The dentist can select a cutting block (90) having a shape closest to the crown (47). Also, in view of the peculiarity of the shape of the crown (47), the cutting block (9
It is useful to make a hole in the center of one side of 0). Also,
The case where dental titanium was used as the material was used. FIG. 8 shows an example of the shape of the cutting block (90). FIG. 8A shows the front part, and FIG. 8B shows the back part. The above-mentioned hole (811) is formed in the back part, and a rib (812) for connecting to a processing jig is integrally connected. The rib (812) is added integrally when the cutting block (90) is manufactured, and is removed by folding it after processing. It may be bonded and fixed.
The cutting block (90) fixed to the rotary jig holder (87) is used for roughing and finishing generated by a computer (30), and is provided with an end mill (1) by a machining path.
Processed in 9). In this case, as in the case of the measurement, the processing is performed only on the other side, so that after the processing on the other side is completed, FIG.
The rotating jig holder (87) is rotated to cut the back surface as shown in FIG. The time required for this process is approximately 1
Time. (4th process)

After the cutting process, the crown (47) is removed from the rotating jig holder (87) and polished.
Apply to patient abutment (5). The attachment and detachment of the fixing jig indicates a method of fastening with a bolt, a claw, and the like, and other possible gripping methods, and the positioning by the jig indicates a positioning method by a pin and a hole. In addition, the method of rotating the jig and the positioning of the angle can be set by setting pins and holes for each angle and rotating manually, by attaching the jig to the servo motor attached to the encoder and automatically rotating Although the angle is determined and the method is performed manually and automatically, the method is not limited to this as long as it is at least detachable. Although the accuracy of the cutting crown (47) depends on the system accuracy, the system of the embodiment of the present invention was able to suppress the error to 20 microns or less. This can produce what meets the ideal accuracy limit of a dental prosthesis of 50 microns.

According to the method for manufacturing a titanium crown as in the above-described embodiment, the number of steps can be greatly reduced as compared with the manufacturing method according to the conventional method, the time can be significantly reduced, and the titanium crown can be rapidly manufactured. Can be manufactured. In addition, to eliminate the process that requires advanced skills and skill,
Even inexperienced dentists and dental technicians can easily and reliably manufacture titanium crowns. In the above embodiment, the case where the present invention is applied to a single crown has been described. However, the present invention can also be applied to a bridge connecting a plurality of crowns. Further, in the above embodiment, the case where titanium was used as the material of the crown (47) was described. it can.

In the above-described embodiment, measurement and cutting are performed separately. FIG. 9 shows an embodiment in which measurement and cutting can be performed simultaneously. FIG. 4 shows a holder (921) having two identical structures on the X-axis table (9).
(921 ′). Holding part (921)
Since the structure of (921 ′) is the same, the same reference numeral is given. Since the structure of the holding portion (921) is the same as that shown in FIG. 4, the same reference numerals as in FIG. The model (57) for measurement is attached to the holder for rotating jig for measurement (87) of the holder (921), and the holder for rotating jig for cutting of the holder (921 ′) is used for cutting. Attach the block (90). The spindle motor (15) is connected and supported via a cutting drill (19) and a processing support (95), and the measurement probe unit (20) is connected to the unit support (94). The unit support section (94) is fixedly connected to the processing support section (95) via a connector (93). The information of the measurement probe unit (20) is configured to be transmitted to the computer (30) shown in FIG. The measurement probe unit (20) outputs the information by contacting the model, and the computer (30) drives the X, Y, and Z axis motors based on the information. By driving these motors, the connecting body (93) is moved to X, Y, Z
Although it moves in the axial direction, the cutting drill (19) and the holding portion (921 ′) move in conjunction with the movement, and the cutting drill (19) is rotated by the rotation drive of the spindle motor (15). And measurement probe unit (20)
Performs the same movement relative to that of the cutting block (90).
To cut. In the case of the cutting operation, two steps of rough cutting and finishing are required. However, the cutting performed simultaneously with the measurement is a step of only rough cutting, and the finishing processing is performed again after the measurement is completed. In some cases, a process is selected. The connecting body (93) has a structure for fixing the measuring probe unit (20) and the cutting drill (19). It is also possible to realize more precise processing such as realizing the movement of the cutting drill in which the operation for the measurement of (20) is corrected. According to the so-called automatic copying, in which the measurement and the processing are performed at the same time, the working process and the working time can be halved compared to the other embodiments, and the handling can be simplified.

At the time of radial measurement or radial processing measurement, a contact type analog contact type measuring element is used in the apparatus shown in FIG. A description will be given of an example in the case of using this. The X and Y coordinates in FIGS. 12 to 15 are the values when the model (A1) is attached to the device shown in FIG.
The sliding direction of the X-axis table and the sliding direction of the Y-axis table are shown. (91) is a rib material shown in FIG. 3, and is a portion to be mounted on the holding tool (87) for the rotary jig. For the purpose of explanation, an operation for producing a crown used for dental treatment will be described. FIG. 11 shows a crown model (A) of a dental prosthesis using an instant polymerization resin on a plaster model used for dental treatment.
Use the one created in 1). In addition, a cutting process is performed with a titanium material based on the measurement data to produce a crown used as a dental prosthesis. First, a contour (A4) is two-dimensionally measured as shown in FIG. 12 on the surface of the crown model (A1) shown in FIG. 11 by a contact analog contact type tracing stylus (20) shown in FIG. A circumscribed circle (A3) is created according to the contour (A4), a center point (A6) is obtained, and the center point (A6) is set as a center point (base point) for radial measurement. The measurement range of the crown model of the dental prosthesis is divided into 18 every 20 degrees around the base point (A6). As shown in FIG. 11 (b), the analog contact type measuring element (A19) is scanned on the divided trajectory (A0), and the shape of the contact portion is taken as a displacement amount. (A19) outputs this as an electric signal. No more than 18 divisions (within 20 degree intervals)
Is an example, but is not particularly limited, and is appropriately adjusted depending on the shape of the model and the like.
Note that the measurement range (A5) is such that the measured contour shape is 110%.
I went to expand. This expansion is the "play" required for measurement
Is added, and if it is 100% or more, it is appropriately adjusted unless the measurement is hindered. FIG.
As shown in (b), the contact type analog contact type probe is driven so that the center line (A11) is perpendicular to the contour portion,
Measurement is performed for each divided measurement range. On the back side where measurement is not possible, the crown model of the dental prosthesis is inverted by the rotating jig holder (87) shown in FIG. 4, and the shape is measured similarly. The three-dimensional measurement data taken into the general-purpose personal computer is offset-calculated in accordance with the contact-type analog contact-type measuring element and the cutting drill, converted into numerical control data, and the cutting data is prepared. A workpiece made of titanium to be used as a dental prosthesis is connected to a rotating jig holder (87). At the time of cutting, the cutting drill shown in FIG. 14 is moved radially to cut the titanium workpiece. The locus of movement is indicated by (A8). The order of the movement locus of the drill with respect to the center point O is indicated by a to k. This order is an order for eliminating an uncut portion due to the spread between the radial lines at a portion distant from the base point (A6). Since the radial line interval indicating the trajectory is narrow, the drill diameter is limited, so that the same drill can be used effectively, the number of replacements can be reduced, and the processing efficiency can be improved. On the other hand, on the back side where cutting was not possible, the workpiece was turned over and cutting was performed in the same manner. In the case of conventional parallel contact type measurement or cutting (see FIG. 18), the margin line (A
2), the crown model (A1) of the dental prosthesis could not be reproduced in detail for a crown used for dental treatment. In particular, at the ridge part of the margin line (A2), the contact type analog contact type measuring element or the cutting drill was moved in the same direction as the ridge, but in the present invention,
Since the contact type analog contact type measuring element or cutting drill is in contact with the ridge of the margin line (A2) almost at right angles, the crown model (A1) of the dental prosthesis is reproduced in detail in the crown used for dental treatment. Could be done.
The present invention is not limited to this example as long as three-dimensional measurement or three-dimensional processing can be performed radially.

The crown model (A1) of the dental prosthesis shown in FIG. 11 is measured with a contact-type analog contact-type tracing stylus (A19). FIG. 13 shows a method for performing high shape measurement. FIG. 13A shows a line (A0) indicating a locus radially divided so as to further divide the area between the line (A0) and the line (A0) into two equal parts and to pass through the center point (A6). A plurality of lines (A7) drawn so as to divide the line in parallel at equal intervals are formed on the line indicating the trajectory drawn, and the analog contact type described above is drawn on the line (A7) indicating the trajectory. The tracing stylus (A19) is moved while measuring, whereby the intervals between the lines (A7) are equal, and the measurement error in a portion away from the center is suppressed. FIG. 1 shows a method of performing highly accurate measurement as in FIG.
It is shown in FIG. The contour (A4) of the crown model (A1) of the dental prosthesis is measured two-dimensionally with a contact-type analog contact-type measuring element. A circumscribed circle (A3) according to the outline (A4)
Was created, and the center point (A6) was determined, and the center point (A6) was used as the center point (base point) for radial measurement. When the measured contour shape was reduced to 50%, it was divided into two. The inner measuring range (A9) is measured radially with a contact analog contact measuring element every two degrees, and the outer measuring range (A10) is measured radially with a contact analog contact measuring element every once. went. The outer measurement range (A10) was obtained by enlarging the shape of the measured contour to 110% with "play". In the same manner as in Example 6, cutting data was prepared, and a crown used as a dental prosthesis was cut. As a result, the crown used for dental treatment using the crown model of the dental prosthesis could be reproduced in detail. In particular, it was possible to reproduce in detail in a margin line portion where reproduction was difficult. The present invention is not limited to this example as long as three-dimensional measurement or three-dimensional processing can be performed radially. In the present embodiment, when a plurality of concentric circles are set for the measurement or processing surface, and the inner and outer circles of the concentric circles are radially divided (referred to as concentric circles),
Between the concentric circles in the outward direction, the number of divisions is larger than that in the inward direction. The number is preferably 1 to 5, but it depends on the complexity of the shape of the object to be measured or processed. It is appropriately adjusted, and is not particularly limited. The setting of the center point according to the present invention is determined by the center point when the shape obtained by the probe coming into contact with the outer contour of the model is regarded as substantially circular or substantially elliptical. In the case of other deformed circular shapes, for example, a determination is made by a method in which the middle point of the maximum width in the X direction and the middle point of the maximum width in the Y direction are center points.
In addition, the shapes of the object to be measured and the block such as a model are not limited to those described above, and the present embodiment can be applied to polygons, squares, and other complicated shapes.

[0040]Closed loop method  In the present invention, in order to make the operation of the motor accurate,
Data to the central processing unit and correct the operation.
It is better to control with closed loop method
Next, the closed loop shown in the present invention
Measurement of the shape of an object to be measured such as a model by control and measurement
Detailed explanation of cutting of massive objects based on constant data
I do. X, Y, Z axis table for three-dimensional movement
Servo motor with encoder on motor
Measure this drive amount to the drive means as if mounting a
And a drive measuring means for performing the measurement. In addition, the drive measuring means,
Not limited to this, there are other means to measure the rotation of the motor,
Or, after converting the rotational motion of the motor into linear motion
Means for measuring linear motion, contact type or
Non-contact such as Doppler method using laser or ultrasonic wave
They may be tactile, and at least use
It may be replaced with information signal such as signal, limited
Not done.

The drive measuring means detects the position of a working unit such as a measuring probe or a drill for processing, and converts this position data, for example, pulse data, to a form that can be processed by a central processing unit such as an analog-digital conversion circuit. Transform the data. For example, based on this data, the central processing unit reads accurate coordinate values and stores the numerical data in the central processing unit or its peripheral devices. Based on this data, the central processing unit corrects the driving operation of the driving means, and sends the corrected data to the servomotors of each axis table. This correction is based on a measurement method such as radial measurement, scanning measurement from one direction, etc., when the probe is moved from the base point to the target location and the contact amount is output as an electric signal.

The central processing unit outputs data for this to the driving means. The driving means rotates the X, Y and Z axis servomotors based on the data. The rotation of the motor is converted into a linear motion and drives a table or a support arm supporting the measurement probe to move the measurement probe to a target location. At this time, the drive measuring means set in association with the drive means sequentially sends the data of the drive means to the central processing unit. At the time of machining, the stored numerical data is offset by the amount of the measuring device, and coordinate data of the surface of the model subjected to three-dimensional measurement is created. After the coordinate data of the model surface is determined, the data can be enlarged or reduced by adding a numerical value in each measurement direction (X, Y, Z coordinates), and a reduced or enlarged copy of the model can be obtained.

Next, an example in which the central processing unit creates data to be sent to the driving means based on the data output from the driving measuring means will be described. (1) When the central processing unit drives the driving unit based on the data that has been created predictively in advance, and the probe that moves in conjunction with the driving unit is moving while contacting the unevenness of the model surface, the probe If the signal output by the probe exceeds the allowable measurement range due to the sudden undulation of the model, the central processing unit uses the drive information sent from the drive measurement unit at this time to determine how far the probe can be from the base point. The movement amount is determined, the movement amount is compared with the drive data output to the drive means by the central processing unit in advance, and the axis in the direction beyond the measurement range is determined from the data sent from the measurement probe, and the measurement is performed. The drive amount of the drive means of the axis in the direction beyond the range is converted into data obtained by adding or subtracting data based on the movement amount sent from the drive measurement means, and output to the drive means. Together, stores the data based on the moving amount sent from the drive measuring unit in the storage means. Since the measuring probe moves in the X, Y, and Z-axis directions based on the data created by the central processing unit in a predictive manner, its movement is monitored, and the movement data and the data detected by the measuring probe are used. In addition, it is possible to accurately measure an unpredictable sudden surface change as described above. In particular, it has a remarkable effect at the time of model measurement.

(2) In other cases, the data obtained by the drive measuring means may not be sent to the central processing unit, but may be sent directly to the drive means. In this case, it is assumed that the driving means includes means capable of reading data obtained by the driving measurement means. This is an A / D converter, D / A
A converter, a converter for converting the amount of rotation into a moving distance, and the like.
When the data obtained by the measuring means is directly sent to the driving means as in the latter case, for example,

At the time of measurement, the central processing unit outputs data for moving the measuring probe to the destination, to the servomotors of the respective driving means. Each servo motor rotates according to the value of the input data. The drive measuring means outputs the measured amount of rotation. The driving means inputs and converts the data into movement data, and then compares the measured data with the data necessary for moving to the destination sent from the central processing unit. By this comparison,
If they match, each servomotor stops operating. The same operation is performed during machining, but when machining is performed, when the machining drill is moved while rotating, it has a remarkable effect in that unnecessary parts are not cut.

The difference between the closed-loop system of the present invention and the open-loop system currently generally used is as follows. The former detects the X, Y, and Z movement amounts of each axis by taking in the encoder data of each axis into a general-purpose personal computer. The detected data and the data of the movement amount commanded in advance by the personal computer are checked, and X, Y, Z
Is the coordinate data. The latter, on the other hand,
The data of the movement amount that defines the movement amounts of the X, Y, and Z axes on the personal computer side is used as X, Y, and Z coordinate data. For example, in the case of three-dimensional measurement, the closed-loop method detects the movement amount of each axis and data of a measuring device, and determines coordinate data. However, in the open loop method, coordinate data is determined by detecting only data of a measuring device corresponding to a movement amount determined by the personal computer. Therefore, the closed-loop method can perform three-dimensional measurement with higher accuracy than the open-loop method. In addition, in three-dimensional machining, motion correction can be performed while confirming the amount of movement in the X, Y, and Z axis directions. In addition, although three-dimensional measurement and three-dimensional processing of closed-loop control can be performed by one central processing unit, a plurality of general-purpose or special-purpose central processing units are used for higher-speed operation. . The use of a plurality of central processing units makes it possible to share servo motor control, which is the power of each axis table, processing of pulse data sent from measuring equipment, etc., at higher speed and with higher accuracy. This makes it possible to perform measurement or processing with less failure of the device.

Another embodiment using the closed loop system will be described below. The apparatus used as the present invention used contact-type measurement using a probe for three-dimensional measurement and cutting for processing. The embodiment shown in FIG. 16 uses X, Y, Z
It performs three-dimensional contact measurement with three axes, and cuts medical materials or dental materials based on the measurement data. The configuration of each axis is the Y-axis table (B5)
An X-axis table (B4) is arranged so as to be slidable independently of each other. A measurement model or a workpiece to be cut is mounted on the X-axis table (B4). (B10) and cutting drill (B9)
And a spindle motor (B8)
However, this is a structure in which the cutting drill (B9) and its power are connected to each other. That is, the measurement model or the workpiece moves in a plane, and the height is compensated for by the movement of the analog contact-type measuring element (B10) or the cutting drill (B9). Servomotors with encoders for X-axis (B71), servomotors with encoders for Y-axis (B72), and servomotors with encoders for Z-axis (B73) were used as power for the respective axis tables.

FIG. 17 shows a specific control block diagram when the closed loop system is employed. General-purpose personal computer (B2) and analog contact probe (B10)
Others are included in the lower storage section of the working section (B3). The controller CPU (central processing unit) (B15) converts data sent from the general-purpose personal computer (B2) into numerical control data suitable for driving by the servo driver,
Servo motor (B19) sent to each servo driver (B16) to (B18) and connected to each driver
To (B23).

The X-axis servo driver (B16), the Y-axis servo driver (B17) and the Z-axis servo driver (B18) are connected and connected in a DC chain so that they can perform independent operations. The servo driver of each axis discharges the data of the movement amount of each axis to the X-axis, Y-axis, and Z-axis servo motors (B19), (B21), and (B23). The encoders (B20), (B22), and (B24) connected to the servo motors (B19), (B21), and (B23) of each axis detect the amount of movement, and the servo drivers (B19),
By sending the pulse data back to (B21) and (B23), the above-described feedback control is performed. Also, the encoders (B20), (B22), (B
The pulse data discharged from 24) is not only sent back to the servo drivers (B19), (B21), and (B23) of each axis, but also digitized to the general-purpose personal computer (B2) connected to the working unit (B3). The analog data (pulse data) is converted into digital data and sent out through the PC interface (B25). Encoders (B20) and (B2)
2)) In addition to the data of (B24), there is pulse data discharged from the contact type analog contact type measuring element 10, and each data is processed. That is, the coordinate data of the three-dimensionally measured model surface is created and stored. PC (B
2) processes linear interpolation (position data) for measurement and processing, processes for CAD, and other data for supporting the operation of the work unit (B2).

The controller CPU (B15) rewrites the data sent from the personal computer (B2) in accordance with the data for controlling the axis of each servo driver connected to the subsequent stage, or translates and translates each servo. Speed up measurement and processing operations by performing data processing for the operation of each axis of the subsequent devices and devices, etc., by using the instruction data output from the personal computer (B2) to be output to the driver. Can be. The controller CPU (B15) is set to operate mainly for processing data (for example, G code) processing. On the other hand, data processing for measurement
This is performed by the personal computer (B2). In addition, the personal computer (B2) also serves as an interface for processing operations due to operability problems and the like. For this reason, a high-precision surface measurement data can be obtained by a personal computer with a large processing capacity, and a driver that drives the cutting drill when the cutting condition is directly related to the operation of the cutting drill, such as processing. By arranging a dedicated CPU for controlling the CPU between the personal computer and the driver, measurement and processing can be performed rationally and at high speed, and a system in which measurement and processing are continuous can be constructed. In this configuration, the two CPUs are shown to operate even in the form of measurement and processing, respectively. However, the present invention is not limited to this, and performs processing of measurement and processing data, respectively. You may. FIG. 18 shows an example of the measurement direction. Analog contact type probe (B10)
The method of measurement is to fix the Y-axis, move the contact analog contact probe (B10) in the X-axis direction,
Measure the amount of axis movement. After reaching a certain point in the X-axis direction, the Y-axis is moved, and the movement amount of the Z-axis is similarly measured in accordance with the movement of the X-axis. The locus is shown in (B29). From this, the general-purpose personal computer (B2) makes a prediction and predicts the amount of movement of the Z-axis in accordance with the movement of the Y-axis of the next X-axis line.
The data is sent to the controller CPU (central processing unit) (B15) in 3), and the numerical data including the prediction processing is instructed to the servo driver of each axis. At this time, measurement and processing that can cope with a discontinuous shape or the like can be performed by a signal from the encoder.

The method of cutting is a general-purpose personal computer (B2)
Is sent to the controller CPU (central processing unit) (B15) of the working unit (B3). The controller CPU (Central Processing Unit) (B15) converts the numerical control data into numerical control data, and drives the servo driver (B1
6)), commands (B17) and (B18) to cut the workpiece. As with the three-dimensional measurement, the pulse data is passed from the encoders (B20), (B22), and (B24) of each axis to the general-purpose personal computer (B2) through the digitizing PC interface (B25), and the analog data (pulse data) is converted into digital data. Convert to data and send. The general-purpose personal computer (B2) confirms the operation of the processing work unit (B3) based on the data. Based on the apparatus having the above configuration, the dental prosthesis model (B11) was three-dimensionally measured, and a cutting process was performed with titanium in the same processing work unit (B3). In the model of the dental prosthesis (B11), a crown was formed with an instant polymerization resin on a plaster model used for dental treatment. The crown model (B11) of the dental prosthesis is measured two-dimensionally in the X and Y directions with an analog contact type tracing stylus (B10), and X and Y for three-dimensional measurement by a general-purpose personal computer (B2). A range in the Y direction was set. Three-dimensional measurement was performed on the surface of the crown model (B11) of the dental prosthesis in the range. Next, the crown model (B1) of the dental prosthesis
1) was reversed, and the back side was similarly subjected to three-dimensional measurement. The measurement data is used to calculate the offset of the analog contact type tracing stylus (B10) by a general-purpose personal computer (B2), and the surface coordinate data of the front side and the back side are stuck together to construct a three-dimensional shape.

Thereafter, the offset of the cutting drill (B9) is calculated, and the data is sent to the working unit (B3). The crown model (B11) of the dental prosthesis was removed from the working unit (B3), the workpiece was set, and cutting was performed based on three-dimensional measurement data. Also, like 3D measurement,
When cutting the back side, the cutting process was performed in reverse. The titanium crown obtained by the above method had an error within 30 μm from the measurement model, and was more accurate than the open loop method. In addition, three-dimensional measurement and cutting can be performed quickly by using two central processing units.
In order to realize three-dimensional movement, it is also possible to employ an NC machine tool or the like which is generally used as a machine for processing a die or the like for the drive unit.

[0053]Jig for measuring and processing equipment  Next, a jig for measurement or processing preferably used in the present invention is attached.
Will be described. FIG. 19 shows the mounting portion (41) shown in FIG.
A cutting drill (19) that can be replaced and mounted
This is a regular probe (20). Cutting drill (19) and
And the measuring probe (20) has a cylindrical link.
The connecting support rod (191) is connected, and the circle is
A uniform groove (193) is provided along the circumference. Dress
In order to insert the connecting support rod (191) into the attachment part (41)
Is provided with a connection hole (192), and a locking projection is provided therein.
(194) are arranged in four directions. Locking projection (19
4) is the intrusion of the connecting support rod (191), and the outer periphery is temporarily
Direction, and when the groove (193) reaches, the groove (1)
93) has a structure that protrudes into and engages on all sides.
Shall be. Also, the connecting support rod (191) will not come off.
The state of the locking projection (194) is fixed when inserting and mounting.
In some cases, means for performing such operations may be further provided. Mounting part, drill for cutting
(19) and the probe (20)
This is shown in FIGS. FIG. 19 (a)
The figure when the drill (19) and the mounting part (41) are mounted.
FIG. 19 (b) shows that the measuring probe and the mounting portion (41) are separated.
FIG. Measuring probe (20) and cutting probe
Each of the rills (19) is attached to the mounting portion (41).
The mounting section (4
The structure of 1) is shown in FIG.
It may be provided on the holder (87). An example is shown in FIG.
showed that. In this way, exchange between work tools such as measurement and processing tools
And the interchangeability between models, lumps and work tools
By having, it enables measurement processing in various directions,
Measurement or processing with higher accuracy can be performed.

FIG. 20 shows a configuration in which the cutting direction and the like of a lump or a model can be changed in multiple directions and a plurality of operations can be performed. (17) (17 ') is a fixing jig, which has the same configuration except that the direction in which a lump, a model, a drill for cutting, a probe for measurement, and the like are mounted is different. When a plurality of fixing jigs are provided in this manner, an example of the following processing method can be shown. That is, first, a dental prosthesis is prepared with a polymerization resin immediately on a gypsum model used for dental treatment as a measurement model, attached to a mounting jig, and then fixed to a fixing jig (17) to be 360 ° every 90 °.゜ Measurement was performed. Next, the measurement model was attached to the fixing jig (17 '), and measurement was performed on only one surface of the measurement model to measure a total of five surfaces. After the measurement, a lump of pure titanium was mounted on a mounting jig and then fixed to a fixing jig (17). According to the data obtained by measuring the model, cutting was performed in the same procedure as in the measurement, and the titanium dental A prosthesis was obtained.

As described above, it is possible to measure and process the model in various directions, and to improve the accuracy of these steps. The present invention is not limited to this, and there are other measurement models and workpieces other than those described above. The results show that the accuracy of the manufactured dental prosthesis was improved compared to the previous method because three-dimensional measurement and processing could be performed. However, by performing the data correction process from measurement to processing, the time required for production did not change much.

FIG. 2 shows a preferred example of the measuring or processing part.
It is shown in FIG. Further, (21A) shows a machined body in which the motor and the drill are integrated. Reference numeral (211) denotes a coupling mounting part for coupling and mounting with the mounting part (41) shown in FIG. 4, and is provided with a convex part (194). Reference numeral (212) denotes a motor which performs a rotation operation by supplying electricity from the outside and performs phase control or the like by inputting an electric control signal. Reference numeral (213) denotes a drill for cutting, whose strength, tooth shape, and the like are appropriately adjusted depending on the material, hardness, and the like of the lump to be cut. Reference numeral (214) denotes a connection adjustment unit that adjusts the connection between the motor (212) and the cutting drill (213). Note that this connection adjustment unit (214)
Is usually fixed, and is used for fine adjustment and pre-adjustment purposes.

Reference numeral (21B) denotes an analog contact type probe having the same shape and size as the coupling mounting portion (211) shown in FIG. Has a possible configuration. (215) is a contact portion, which is a portion for making contact with the model. (216)
Is a conversion unit for converting the amount of mechanical displacement generated by the contact between the contact unit (215) and the model into an electric signal. An integrated workpiece shown in (21A);
The analog contact type probe shown in 1B) can be mounted on the mounting portion (41), as described above. It is configured. This length (21
7) is a positional length in a mounted state, and does not refer to only the length when detached. Therefore, even if the lengths when removed are different, it is only necessary that the lengths when attached are the same, and when attached, even if the lengths are different, integer multiples and other mathematical correlations In the present invention that performs arithmetic processing based on numerical data, if the length relationship allows computational grasp, such as a state having
Are considered to be identical.

FIG. 22 shows another example of the measuring or processing section. FIG. 22 shows the connection support rod (191) shown in FIG. 21 arranged on the side. Connecting support rod (191),
FIG. 23 shows an example of the connection relationship of the mounting portion (41). (A
1) is a view of the mounting portion viewed from above, and (a2) is
It is a side view. Reference numeral (192) denotes a coupling hole, and protrusions (194) having resiliency to the left and right are arranged in four directions in the center of the inside. (225) are auxiliary projections, which are arranged at four positions in a diagonal direction of the mounting portion. Auxiliary protrusion (2
Numeral 25) is a projection for accurate positioning of a tracing stylus, a cutting drill, and the like. Further, by arranging every 90 °, it is also possible to set a position at an angle for changing the direction of the cutting drill by 90 ° (FIG. 25). (B1) is a connecting support rod (19)
It is the figure which looked at the circumference | surroundings containing 1) from the upper surface, and (b2) is a side view. (191) is a connection support rod, and the groove (193) is uniformly arranged on the side surface. Connecting plate (22
6) (225) formed on the upper side are auxiliary holes, which are provided at four places in the diagonal direction of the connecting plate (226).
The connection support rod (191) is connected by the connection hole (19).
By being inserted into 2), the groove portion (193) and the convex portion (194) are connected in four directions, and the auxiliary hole (225) and the auxiliary protrusion (224) are connected, thereby performing positioning with respect to the angle. . The projection (194) has a
It is in contact with the fixed support (221) having a slope at the tip. A substantially central portion of the fixed support (221) is provided with an internal thread portion (227) having a threaded inner surface, and the fixed support (221) is engaged with the internal thread portion (227) and rotated to rotate. According to FIG. 23 (a2), an external thread portion (228) provided with a thread on the outer surface for sliding up and down and a bevel gear (229) at the end is provided. Further, an adjusting body (230) having a beveled gear (222) for meshing with the gear (229), extending to the outside, and having a gripper (223) capable of easy manual operation is provided. Is formed. The adjusting body (230) is only required to be used in connection with business, and is preferably removed except for business.

An example of the operation will be described. The connecting support rod (191) is inserted into the connecting hole (192), the auxiliary hole (225) and the auxiliary projection (224) are connected, and the groove (193) and the convex (194) are aligned. Thereafter, the gear (222) and the gear (229) of the adjusting body (230) are connected. Next, the gripper (223) is rotated. This rotation rotates the external thread part (228) via the gear (222) and the gear (229). Since the outer screw of the outer screw portion (228) and the inner screw (227) of the fixed support (221) are engaged with each other, the rotation of the outer screw portion (228) fixes the inner screw portion (227). Support (221)
Moves upward, the fixed support (221) and the convex portion (19) move upward.
4) has a slope, so that the slope becomes shallower with the upward movement of the fixed support body (221), and the convex part is moved toward the center of the connection hole (192) to be connected. Groove (193) and convex (194) of support rod (191)
Engage to form a fixed state. At the time of release, the gripper (22
By rotating 3) in the opposite direction, the fixed support (22
1) moves downward, and the fixed support (221) and the projection (1) move.
As the inclined portion of the tip end surface in contact with the convex portion (94) is deepened, the pressing and fixing force of the convex portion (194) in the inward direction is reduced,
The engagement between the groove (193) and the projection (194) is released.

FIG. 24 shows a view from the side when the workpiece is mounted on the mounting portion. In addition, the coupling connection part (211) and the mounting part (41) both have a quadrangular shape, and the auxiliary holes (225) and the auxiliary projections (224) are arranged at the same positions. Four coupling directions are possible. An example is shown in FIG. As described above, depending on the object obtained by the processing, the configuration shown in FIG. 25 is preferably used. By arranging the auxiliary projections in the diagonal direction of the polygon having symmetry, it is possible to arrange the workpiece or the analog contact measuring element for measurement in various directions. Further, since the mounting portion (41) is also mounted on the rotating jig holder (78) in FIG. 4, the rotating jig holder (78).
In some cases, a workpiece or a measurement analog contact type probe is mounted on the workpiece, and a lump, a model, or the like is mounted on a portion where the mounting portion (41) shown in FIG. 4 is mounted.

FIG. 22 (b) shows an analog contact type probe, which has the same configuration as that of FIG. 22 (a) except that the coupling connection portion (226) is arranged on the side surface. Omitted. The mounting locations and number of base jigs and mounting jigs, the rotation angles of mounting jigs, and the installation locations of measurement and processing equipment are not limited to those described above. Exists. As described above, the measurement and processing machine has become detachable, so it is not only possible to perform three-dimensional measurement and processing, but also to replace the processing equipment at the time of processing, eliminating the influence on the measurement equipment, Data correction could be omitted in addition to the integrated drill. As a result, the accuracy of the prepared titanium dental prosthesis has been improved by several steps as compared with conventional dental prostheses, and the production time has been greatly reduced as compared with the conventional one. In addition, by replacing the measuring and processing equipment, it was possible to make up for it with a single main unit and reduce capital investment.

When a processing portion having an integral structure as shown in FIGS. 21 (a) and 22 is used, even if any breakage or failure occurs during the processing and the operation is temporarily stopped, it is only necessary to replace it. This can indicate that cutting can be restarted without correction processing, and that a highly accurate object can be processed even if the processing and correction processing are omitted from the beginning. Although the above description has been made with respect to the handling of wear and breakage of the drill, the method is not limited to this.

[0063]

As described above, according to the present invention, it is possible to make a copy of a model to be manufactured or a partial copy having a shape related to the model. In addition, high-precision measurement is possible, and at the time of processing, it is possible to cut massive objects such as titanium and ceramic dental prostheses, which were difficult to manufacture with the conventional casting method, based on the measurement data. In addition, it is possible to manufacture a high-accuracy copy or the like, and to manufacture it with an accuracy equal to or better than that of the casting method. This makes it possible for the dental professional to engage in more intelligent work, and is expected to contribute to the improvement of the quality of the dental prosthesis. Furthermore, while the present invention has been described in detail, those skilled in the art will appreciate that equivalent techniques and equivalent materials well known to those skilled in the art can be used for this method without departing from the scope of the invention. It will be recognized what can be done. By performing the three-dimensional measurement or the three-dimensional processing on the radial shape of the present invention, the shape of the peripheral portion of the object having a shape close to a circle can be measured or processed in detail. The method of three-dimensional measurement and three-dimensional processing by the closed-loop control and the apparatus using the same according to the present invention are performed while confirming the three-dimensional movement amount more than the current open-loop control as described above. Therefore, the accuracy is improved. Further, by using a plurality of central processing units, three-dimensional measurement and three-dimensional processing of a medical material or a dental material by closed-loop control can be performed at high speed. In addition, since processing such as duplication of a model can be performed three-dimensionally and correction processing can be omitted, it has been suggested that time can be reduced and accuracy can be improved. In addition, reprocessing after processing is interrupted has become possible. Further, the present invention has various effects such as various measurement and processing methods can be realized by one apparatus.

[Brief description of the drawings]

FIG. 1 is a diagram for explaining an embodiment of the present invention.

FIG. 2 is a diagram for explaining an embodiment of the present invention.

FIG. 3 is a diagram for explaining an embodiment of the present invention.

FIG. 4 is a diagram showing an embodiment of the present invention.

FIG. 5 is a diagram for explaining an embodiment of the present invention.

FIG. 6 is a diagram illustrating an embodiment of the present invention.

FIG. 7 is a diagram for explaining an embodiment of the present invention.

FIG. 8 is a diagram for explaining an embodiment of the present invention.

FIG. 9 is a diagram showing an embodiment of the present invention.

FIG. 10 is a flowchart for explaining an embodiment of the present invention.

FIG. 11 is a crown model of a dental prosthesis for three-dimensional measurement.

FIG. 12 is a diagram illustrating an example of the present invention.

FIG. 13 is a diagram illustrating an example of the present invention.

FIG. 14 is a diagram illustrating an example of the present invention.

FIG. 15 is a diagram illustrating an example of the present invention.

FIG. 16 is a diagram showing another embodiment of the present invention.

FIG. 17 is a block diagram of FIG. 16;

FIG. 18 is a diagram illustrating an example of the present invention.

FIG. 19 is a diagram showing a portion for connecting a workpiece having a replaceable structure, a measurement probe, and the like.

FIG. 20 is a diagram showing another embodiment of the present invention.

FIG. 21 is a diagram illustrating a part of the embodiment of the present invention.

FIG. 22 is a view for explaining a part of the embodiment of the present invention.

FIG. 23 is a view for explaining a part of the embodiment of the present invention.

FIG. 24 is a diagram for explaining another embodiment of the present invention.

FIG. 25 is a diagram for explaining another embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Gum 3 Natural tooth root 5 Abutment tooth 7 Machine lower part 9 X-axis table 10 Y-axis table 11 Z-axis 12 X-axis motor 13 Y-axis motor 14 Z-axis motor 15 Spindle motor 16 Splash cover 17 Pedestal 18 Machine foot 19 End mill 20 Contact probe 20a Contact probe base 20b Contact probe stylus 30 Control PC 57 Male type 87 Rotating jig holder 90 Cutting block 90a Cutting block surface view 90b Cutting block back view 91 Measurement rib 92 Male adhesive

────────────────────────────────────────────────── ───

[Procedure amendment]

[Submission date] December 13, 1996

[Procedure amendment 1]

[Document name to be amended] Drawing

[Correction target item name] All figures

[Correction method] Change

[Correction contents]

FIG.

FIG. 2

FIG. 3

FIG. 4

FIG. 7

FIG. 8

FIG.

FIG. 5

FIG. 6

FIG. 9

FIG.

FIG. 10

FIG. 11

FIG. 13

FIG. 14

FIG. 16

FIG.

FIG.

FIG. 24

FIG. 25

FIG.

FIG.

FIG. 21

FIG.

FIG. 23

[Procedure amendment 2]

[Document name to be amended] Statement

[Correction target item name] Brief description of drawings

[Correction method] Change

[Correction contents]

FIG. 1 is a diagram for explaining an embodiment of the present invention.

FIG. 2 is a diagram for explaining an embodiment of the present invention.

FIG. 3 is a diagram for explaining an embodiment of the present invention.

FIG. 4 is a diagram showing an embodiment of the present invention.

FIG. 5 is a diagram for explaining an embodiment of the present invention.

FIG. 6 is a diagram illustrating an embodiment of the present invention.

FIG. 7 is a diagram for explaining an embodiment of the present invention.

FIG. 8 is a diagram for explaining an embodiment of the present invention.

FIG. 9 is a diagram showing an embodiment of the present invention.

FIG. 10 is a flowchart for explaining an embodiment of the present invention.

FIG. 11 is a crown model of a dental prosthesis for three-dimensional measurement.

FIG. 12 is a diagram illustrating an example of the present invention.

FIG. 13 is a diagram illustrating an example of the present invention.

FIG. 14 is a diagram illustrating an example of the present invention.

FIG. 15 is a diagram illustrating an example of the present invention.

FIG. 16 is a diagram showing another embodiment of the present invention.

FIG. 17 is a block diagram of FIG. 16;

FIG. 18 is a diagram illustrating an example of the present invention.

FIG. 19 is a diagram showing a portion for connecting a workpiece having a replaceable structure, a measurement probe, and the like.

FIG. 20 is a diagram showing another embodiment of the present invention.

FIG. 21 is a diagram illustrating a part of the embodiment of the present invention.

FIG. 22 is a view for explaining a part of the embodiment of the present invention.

FIG. 23 is a view for explaining a part of the embodiment of the present invention.

FIG. 24 is a diagram for explaining another embodiment of the present invention.

FIG. 25 is a diagram for explaining another embodiment of the present invention.

[Description of Signs] 1 Gum 3 Natural tooth root 5 Abutment tooth 7 Machine lower part 9 X axis table 10 Y axis table 11 Z axis 1
2 X-axis motor 13 Y-axis motor 14 Z-axis motor 15
Spindle motor 16 Splash cover 17 Pedestal 18 Machine foot 19 End mill 20 Contact probe 20a Contact probe base 20b Contact probe stylus 30
Control PC 57 Male mold 87 Rotating jig holder 90 Cutting block 90a Cutting block front view 90b Cutting block back view 91 Measurement rib 92 Male adhesive

[Procedure amendment 3]

[Document name to be amended] Statement

[Correction target item name] 0024

[Correction method] Change

[Correction contents]

[0024] The dental prosthesis with good compatibility according to the present invention can be produced quickly.
FIG.
This will be described with reference to FIGS. 2, 3, 4, 10, and the like. Target
The process of manually creating a survey object is shown in FIG.
Shown in 1).Step (2.1) consists of placing a dental preparation on the patient's abutment.
Prototype dental prosthesis made with brazing material (wax, tech)
It shows that1. Patient tooth morphology
For accurate acquisition, do not use impression material,
A prosthesis model is formed directly with an instant polymerization resin. Details
Details are shown in FIG. 10B (2.1.1), (2.1.2),
This is shown in the step (2.1.3).FIG. 10B (2.1.
1) Consider the shape of the abutment tooth according to the symptoms of tooth decay,
It shows a process of forming with a treatment bar. FIG.
0 (b) (2.1.2) is a dental wax material (wax,
Process) to form the prosthesis shape on the abutment
It shows the process. FIG. 10B (2.1.3)
The formed prosthesis prototype is solidified by ultraviolet rays or chemicals.
This shows the steps.2. The prosthesis model
After curing, it is taken out of the patient's mouth and the measurement module shown in FIG.
Dell is obtained. FIG. 10B (2.1.4)FIG.
(B) As described above, (2.1.4) shows the patient's mouth after solidification.
It shows the process of taking out a prototype from inside.
(Mounting process) FIG. 10A (2.2)And figure
10 (c)Shows the process of attaching the prototype.FIG.
(A) (2.2) is a method for measuring a dental prosthesis
Attach to the measuring jig, and use the holder to perform CAD / C
3 shows a process of attaching to an AM system.this
Additional equipment for measurement as shown in Fig. 3, for example in the measurement model
Attach the structure (FIG. 10 (c) (2.2.1)), FIG.
It is mounted on the holding part (87) for the rotary jig as shown by.
(FIG. 10 (c) (2.2.2)) (FIG. 10 (c) (2.
2.3))FIG. 10 (c) (2.2.1) shows a measurement resource.
This shows a process of preparing a metal plate and bonding it to a model.
FIG. 10 (c) (2.2.2) shows the original with the ribs attached.
The process of attaching the model to the special holder, and measuring at this time
It shows a process of adjusting the angle to be easily performed. FIG.
0 (c) (2.2.3) is a holder with a model attached
To the pedestal on the X-axis table of the CAD / CAM system
It shows a process of attaching.

[Procedure amendment 4]

[Document name to be amended] Statement

[Correction target item name] 0025

[Correction method] Change

[Correction contents]

(Automatic measurement step) FIG. 10A (2.
3) and FIG. 10 (d) show an automatic measurement process. FIG.
0 (a) (2.3) is to measure the shape of the model by measurement CAD
Measure and store measurement data on PC, process and complete
Invert the model together with the jig to measure the shape
It is shown. Based on a closed-loop type servo control, etc., an analog contact type measuring element (for example, (20) shown in FIG. 4) having a complete spherical tip mounted on the same axis as the spindle motor spindle and position detection from each motor axis. A computer system (for example, 30 in FIG. 4) having pulse data and an analog-digital conversion circuit is driven. FIG. 10 (d) (2.3.1), FIG. 10 (d)
(2.3.2) FIG. 10 (d) (2.3.1) shows an automatic meter
Select the measurement software from the menu and start it.
It is. FIG. 10 (d) (2.3.2) shows the prosthesis prototype
This indicates the process of setting the position coordinates of the center of the model.
You. This drive is performed in detail by an X-axis motor (for example, 1 in FIG. 4).
2) The Y-axis motor (for example, 13 in FIG. 4) and the Z-axis motor (for example, 14 in FIG. 4) rotate, and the rotation causes the X-axis table (for example, 9 in FIG. 4) Y-axis connected to each motor. When the table (for example, 10 in FIG. 4) and the Z-axis arm (for example, 141 in FIG. 4) slide in each axial direction, the probe (2)
0) or the movement of the model (57) in conjunction with it, the probe (20 shown in FIG. 4) moves on the surface of the model (57) while making contact with the same, and the force applied to the probe (20) The computer reads the exact coordinate values from the displacement amount based on the information and the information based on the operation of each motor (CAD / C
AM) Store as numerical data in the system. FIG.
(D) (2.3.3) FIG. 10 (d) (2.3.3)
From the set measurement center, a half surface of the prosthesis prototype model is radiated.
3 shows a process of measuring by the measurement path of FIG.
3. A correction for the radius of the tip sphere of the tracing stylus is calculated by the computer system from the stored data to generate coordinate data of the surface of the model. 4. At this time, the computer system predicts the shape of the prosthesis model based on the sequentially read data, and thereby determines the amount of movement of the next measurement point, thereby enabling continuous measurement without waste. I can do it. 5. At this time, to measure the shape accurately,
The complete shape of the front and back sides is measured using a jig that can be exactly flipped 180 degrees as shown by the rotating jig (87). FIG.
0 (d) (2.3.4), FIG. 10 (d) (2.3.5)
Fig. 10 (d) (2.3.4) shows the model after the half-surface measurement is completed.
Invert the whole holder with the
It shows a process of measuring in a measurement path. FIG.
(D) (2.3.5) save the measurement data to the PC
Remove the process and measurement holders and measurement stylus
This shows the steps.

[Procedure amendment 5]

[Document name to be amended] Statement

[Correction target item name] 0026

[Correction method] Change

[Correction contents]

(Calculation Step of Obtained Data) FIG.
(A) (2.4) and FIGS . 10 (a) and (2.4) showing the calculation steps in FIG.
To indicate the process of designing the machining tool path.
You. FIG. 10E (2.4.1) shows a machining path calculation software.
Select the software from the menu and launch it, indicating the process
Things. FIG. 10 (e) (2.4.2) shows the automatic measurement.
The data of the restored prosthesis prototype model
It is. Fig. 10 (e) (2.4.3) shows the rough cutting
Calculate the drilling speed and feed rate to determine the cutting path for rough machining.
Data is created and saved automatically, and indicates the process.
You. Fig. 10 (e) (2.4.4) shows the cutting drill for finishing.
And speed, and based on the roughing cutting path data
Automatically creates and saves cutting path data for finishing.
It shows the process. 1. The computer (3 in FIG. 4)
On 0), the machining path calculation software is started, the measured data stored in the computer (30) is read, and the measured data is converted into numerical data and converted into processed data. If necessary, the data is enlarged or reduced. Is added. Further, a roughing pass is created, and then a finishing cutting pass is created. Each is stored in the computer (30). In this case, it is assumed that the diameter and shape of a workpiece such as a drill used for roughing or finishing are set in advance.

[Procedure amendment 6]

[Document name to be amended] Statement

[Correction target item name] 0027

[Correction method] Change

[Correction contents]

(Processing step) FIG. 10A (2.
5) and FIG. 10 (f) show the processing steps. FIG.
(A) (2.5) is a processing jig, processing material and end
Milling and machining, machining process and complete shape
In order to reverse the work material together with the jig after half-face processing,
It shows the process. FIG. 10 (f) (2.5.1)
Attach the work material to the cutting holder, and use it for CAD / CAM
Process and cutting software installed in the system
Is selected from a menu and activated.
FIG. 10 (f) (2.5.2) shows a cutting path for rough machining.
Data and cutting path data for finishing
And a step of performing finishing processing. FIG.
(F) In (2.5.3), after processing the half surface,
Invert the cutting holder with the work material, showing the process
It is. A cutting tool (eg, (19) in FIG. 4) is used instead of the tracing stylus (20) which has been mounted for measurement. 2. A rib (812) is bonded to a lump (such as that shown in FIG. 8) with an adhesive or the like, or a rib (812) portion of a lump provided with the rib (812) in advance by integral processing or the like is used. Rotating jig (for example, (87) in FIG. 4)
Attach to 3. Computer (CAD / CAM)
From (30), first, a rough cutting process is performed based on the data of the rough cutting pass. This rough cutting is performed by an X-axis motor (for example, FIG.
12), the Y-axis motor (for example, 13 in FIG. 4) and the Z-axis motor (for example, 14 in FIG. 4) rotate, and the rotation causes the X-axis table (for example, 9 in FIG. 4) Y connected to each motor.
The axis table (for example, 10 in FIG. 4) and the Z-axis arm (for example, 11 in FIG. 4) slide in each axial direction, and the sliding causes the driven cutting tool (19) to come into contact with the lump to cut. The tool (19) is performed by cutting a lump. 4. Next, a finishing process is performed based on the data of the finishing pass from the computer (CAD / CAM) (30). At this time, the drill is replaced or the like, and parameters and the like are changed based on the portion changed by the replacement or the like. 5. After the front surface is processed, the rotating jig holding section (87) rotates, and the back surface is cut. At this time, rough processing and finish processing are performed in order. The portion is shown in (2.5.4) of FIG. Figure 10 (f) (2.5.4) shows the unprocessed half surface
It shows a step of performing rough processing and finish processing.
6. After the processing is completed, the processed lump is removed from the holding member (87) for the rotating jig, and the rib (shown in FIG. 8 (812)) is cut off (FIG. 10 (f) (2.5.5)). FIG.
0 (f) (2.5.5) is a dental prosthesis made by cutting
The process of removing the object from the holder for cutting and cutting off the rib
It shows. In addition, as a processing material used as a lump, titanium, dental ceramics, a composite resin, and the like are preferable, but are appropriately selected according to an object to be processed. . In the end step of FIG.
It includes steps of removing and trying.

──────────────────────────────────────────────────続 き Continuation of the front page (51) Int.Cl. ⁶ Identification code Agency reference number FI Technical indication location G05B 19/4097 G05B 19/403 C (72) Inventor Manabu Ota 1-11-1 Midorioka, Ageo-shi, Saitama 18 (72) Inventor Makoto Sakazume 3-98 Higashi Hatsuishi, Nagareyama City, Chiba Prefecture

Claims (17)

[Claims] 1. A measurement or processing system comprising a converting means for converting the shape of an object into data, and a processing means for processing a lump based on the data obtained by said converting means. 2. The measuring or processing system according to claim 1, wherein a part or all of said converting means and said processing means are driven by the same or similar driving means. 3. The measuring process according to claim 1, wherein the conversion means converts the model into data after forming a model indicating the shape of the object, and the model is an immediate superimposed member. system. 4. The measuring and processing system according to claim 1, wherein said converting means performs measurement or processing by rotating a model or lump as needed. 5. The measuring and processing system according to claim 1, wherein the model is obtained by taking an impression of a tooth condition with an impression material and copying the tooth with an impression gypsum. 6. The measurement processing system according to claim 1, wherein said processing means has two steps of rough cutting and finish cutting. 7. A measurement processing system having a link mechanism for simultaneously performing measurement of an object and cutting of the lump, and performing automatic copying by the link mechanism. 8. A measurement or processing method characterized in that the shape of an object is radially measured and converted into data, and a lump is processed based on the data. 9. The measuring or processing method according to claim 8, wherein the shape of the object is radially divided, the divided portion is measured in parallel, and converted into data, and the mass is processed based on the data. . 10. A measuring surface or a processing surface is divided into concentric circles,
The method for radially measuring or processing according to claim 8, further comprising measuring or processing for each concentric circle. 11. A method for performing measurement or processing by closed loop control and an apparatus using the method. 12. A shape measuring means for measuring the shape of an object,
2. A detecting means for detecting data resulting from an operation of the shape measuring means, and an adjusting means for adjusting a measuring operation of the shape measuring means based on data detected by the detecting means.
2. The measurement method according to 1, and an apparatus using the method. 13. Processing means for processing a lump based on measurement data obtained by measuring the shape of an object, detecting means for detecting data resulting from the processing operation of the processing means, and processing the lump based on the detection data of the detecting means. 12. The processing method according to claim 11, comprising an adjusting means for adjusting a processing operation of the means, and an apparatus using the method. 14. The method for performing measurement or processing according to claim 13, further comprising one or more central processing units or a micro-processing unit, and an apparatus using the method. 15. A fixing unit for fixing an object or a lump, a measuring unit for measuring the shape of the object and outputting it as information, a processing unit for processing the lump based on external input information,
The measurement or processing apparatus according to claim 2, further comprising a drive operation unit configured to enable the attachment, detachment, exchange, and rotation of the measurement unit, the processing unit, and the fixed unit, and to perform a drive operation when the device is mounted. 16. The processing section comprises a processing body that processes a lump by rotating a lump, and a rotation drive unit that is integrally and detachably connected to the processing body and that rotates the processing body. 4. The measuring or processing apparatus according to claim 1. 17. The measuring or processing apparatus according to claim 15, wherein the processing section and the measuring section form a state having an absolute or relatively the same or a correlation when the mounting is performed.