KR102014640B1 - Contact-type workpiece measuring device - Google Patents

Abstract

The present invention relates to a contact-type workpiece measuring device comprising: a body part having a path through which a workpiece is transferred up and down or left and right and supporting a device for measuring a height or a diameter of the workpiece; a transfer part including a transfer device installed on one side of the body part and a support installed on one side of the transfer device; a measuring part including a height measuring device, a diameter measuring device, and a sensor part attached to one side of the body part; and a control part for controlling the transfer part and the measuring part. Therefore, the present invention is capable of reducing the cost of measuring by efficiently inspecting large quantities of machined workpieces.

Description

Contact-type workpiece measuring device

The present invention is a contact workpiece measuring apparatus in more detail, after processing a workpiece in a machine tool such as a CNC lathe, a worker or a robot such as a robot puts the workpiece on the contact workpiece measuring device, the diameter of the workpiece is automatically A technique for measuring height.

CNC lathes are widely used around the world to machine workpieces. Machined workpieces should be inspected for accuracy. Vernier calipers and dial gauges are currently used to measure workpieces. However, automatic or semi-automatic measuring devices are used to reduce measurement costs (such as labor costs) and to efficiently inspect large quantities of workpieces. The three-dimensional measuring machine can measure accurately, but it is expensive, so it is difficult to purchase and provide, and it is expensive to measure a large number of workpieces. To compensate for these points, it is necessary to be efficient and reduce the measurement cost.

Republic of Korea Patent Publication No. 10-0801316 (2008.01.29.)

The present invention has been made to solve the problems of the prior art as described above, to automatically check whether the machined workpiece is machined to the correct numerical value, and to efficiently inspect a large number of machined workpiece to reduce the measurement cost Its purpose is to.

It is also an object of the present invention to measure the diameter and height of a workpiece as well as the error measurement of the workpiece.

In addition, an object of the present invention is to supplement the measuring device by fixing the workpiece with a push rod using the fixed frame of the workpiece support and the linear bushing of the diameter measuring mechanism to reduce the error rate of the measuring device and improve the measurement stability.

The problem to be solved by the present invention is not limited to the above-mentioned problem, another problem to be solved by the present invention not mentioned herein is to those skilled in the art from the following description. It will be clearly understood.

Contact type workpiece measuring apparatus according to an embodiment of the present invention, the body portion that provides a space for measuring the workpiece and the workpiece fixing portion is installed on the body portion and the workpiece so that the workpiece can be seated and fixed For the measurement, the transfer unit for transporting the workpiece fixing portion is provided on at least one side of the body portion and the transfer portion, the sensor unit for detecting the presence of the workpiece and at least one side of the body portion and the transfer portion It is provided, comprising a measuring unit for measuring the height and diameter of the workpiece and a control unit for controlling the transfer unit, the sensor unit and the measurement unit for the measurement of the workpiece, wherein the workpiece is located in the correct position by the sensor unit If detected, and the height and diameter of the workpiece is measured by the controller and measurement unit It characterized in that the automatically performed.

In addition, the measuring unit according to a preferred embodiment of the present invention, the diameter measuring mechanism is installed on one side of the conveying unit to measure the diameter of the workpiece and the height measuring mechanism is installed on one side of the body portion to measure the height of the workpiece It includes, The diameter measuring mechanism, the diameter indicator for measuring the diameter of the workpiece and the rod for holding the workpiece and the LM guide and the air pressure to guide the direction in which the rod moves, the rod is transferred to the workpiece, And a horizontal cylinder to fix the diameter indicator to the workpiece, wherein the horizontal cylinder transfers the rod through air pressure to fix the workpiece. The diameter indicator measures the diameter or diameter error of the workpiece. , The height measuring mechanism is a height for measuring the height of the workpiece And a vertical cylinder for causing the height indicator to contact the workpiece with air pressure, wherein the vertical cylinder contacts the height indicator with the workpiece through air pressure to measure the height or height error of the workpiece. It is characterized by a contact workpiece measuring device.

In addition, the control unit according to an embodiment of the present invention, when it is detected that the workpiece is seated in the correct position (diameter measuring area) by the sensor unit, by operating the diameter measuring mechanism to operate the diameter or diameter of the workpiece After measuring the error, and measuring the diameter and diameter error is completed by moving the workpiece to the height measuring area by operating the conveying unit, by operating the height measuring mechanism to control to measure the height or height error of the workpiece It features.

In addition, the transfer unit according to a preferred embodiment of the present invention, characterized in that it comprises a support for moving the pedestal to the position for measuring the height of the workpiece and the pedestal for supporting the workpiece fixing portion.

In addition, the body portion according to an embodiment of the present invention, the vertical block is provided with the height measuring mechanism and the horizontal block is provided with the diameter measuring mechanism and the transfer support for supporting the transfer portion, the transfer support The transfer mechanism and the pedestal are sequentially placed on the upper surface, so that the pedestal is horizontal.

By the means for solving the above problems, there is an effect that can automatically check whether the machined workpiece is machined to the correct value, and can efficiently reduce the cost of measurement by inspecting a large number of machined workpiece.

In addition, the contact type workpiece measuring apparatus of the present invention has the effect of not only measuring the diameter error and the height error of the workpiece but also measuring the diameter and the height of the workpiece.

In addition, the contact workpiece measuring apparatus of the present invention, to reduce the error rate of the measuring device, and to fix the workpiece by fixing the workpiece with a push rod using the fixed frame of the workpiece pedestal and the linear bush of the diameter measuring mechanism to improve the measurement stability It can be effective.

1 is a perspective view of a contact workpiece measurement apparatus according to an embodiment of the present invention.
2 is a front view of the contact workpiece measuring apparatus according to an embodiment of the present invention.
3 is a view showing the internal configuration of the contact workpiece measuring apparatus according to an embodiment of the present invention.
4 is a plan view showing a contact workpiece measuring apparatus according to an embodiment of the present invention.
5 is a view showing the operation of the diameter indicator height adjuster and the height indicator height adjuster of the contact workpiece measuring apparatus according to an embodiment of the present invention.
6 is a view showing a control configuration of a contact workpiece measuring apparatus according to an embodiment of the present invention.
7 is a view showing a simple operation sequence of the contact workpiece measuring apparatus according to an embodiment of the present invention.
8 is a view showing a detailed operation procedure of the contact workpiece measurement apparatus according to an embodiment of the present invention.
9 is a view showing the operation of the contact workpiece measuring apparatus according to an embodiment of the present invention.
10 is a view showing the operation of the contact workpiece measuring apparatus according to an embodiment of the present invention.

Terms used herein will be briefly described and the present invention will be described in detail.

The terms used in the present invention have been selected as widely used general terms as possible in consideration of the functions in the present invention, but this may vary according to the intention or precedent of the person skilled in the art, the emergence of new technologies and the like. Therefore, the terms used in the present invention should be defined based on the meanings of the terms and the contents throughout the present invention, rather than the names of the simple terms.

When a part of the specification is said to "include" any component, this means that it may further include other components, except to exclude other components unless otherwise stated.

DETAILED DESCRIPTION Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. In the drawings, parts irrelevant to the description are omitted in order to clearly describe the present invention, and like reference numerals designate like parts throughout the specification.

Specific matters including the problem to be solved, the means for solving the problem, and the effects of the present invention are included in the following embodiments and the drawings. Advantages and features of the present invention, and methods for achieving them will be apparent with reference to the embodiments described below in detail in conjunction with the accompanying drawings.

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

Referring to Figure 1 to Figure 4, the body portion 100 to provide a space for the measurement of the workpiece and the workpiece fixing part 200 is installed in the body portion 100 so that the workpiece is fixed and seated Include. In addition, in order to measure the workpiece, it is provided on at least one side of the transfer unit 300 and the body portion 100 and the transfer unit 300 for transferring the workpiece fixing part 200, whether the workpiece exists It includes a sensor unit 400 for detecting. In addition, provided on one side of at least one of the body portion 100 and the transfer unit 300, the measuring unit 500 for measuring the height and diameter of the workpiece and for measuring the workpiece, the transfer unit 300, It includes a sensor unit 400, a control unit 600 for controlling the measurement unit 500.

When the workpiece is detected to be in the correct position by the sensor unit 400, the process of measuring the height and diameter of the workpiece by the controller 600 and the measuring unit 500 is automatically performed. Is performed.

The measuring unit 500 is installed on one side of the transfer unit 300 to measure the diameter of the workpiece and the diameter measuring mechanism 510 and one side of the body portion 100 to measure the height of the workpiece Height measuring mechanism 520 is included.

The diameter measuring mechanism 510 includes a diameter indicator 511 for measuring the diameter of the workpiece, a push rod 512 for fixing the workpiece, and an LM guide 513 for guiding a direction in which the push rod 512 moves. It includes a horizontal cylinder 514 for conveying the push rod 512 by pneumatic pressure to fix the workpiece so that the diameter indicator 511 is in contact with the workpiece.

The push rod 512 is formed in a 'v' shape, and wraps the outer peripheral surface of the workpiece when in close contact with the workpiece to prevent the workpiece from being separated.

The diameter indicator 511 has a resolution of 0.001mm, the diameter measuring mechanism 510 can measure the diameter of the workpiece in the range of 80 ~ 200mm. The rod 512 and the LM guide 513 reduces the measurement error rate due to vibration or the like when measuring the workpiece to enable accurate measurement.

When the horizontal cylinder 514 transfers the push rod 512 through the air pressure to fix the workpiece, the diameter indicator 511 measures the diameter or diameter error of the workpiece.

The height measuring mechanism 520 includes a height indicator 521 for measuring the height of the workpiece and a vertical cylinder 522 for allowing the height indicator 520 to contact the workpiece with air pressure. The height indicator 520 has a resolution of 0.001mm, the height measuring device 520 can measure the height of the workpiece in the range of 50 ~ 120mm. Like the diameter measuring mechanism 510, when measuring the workpiece, a push rod and an LM guide may be provided to reduce the measurement error rate due to vibration or the like to enable accurate measurement.

The vertical cylinder 522 is in contact with the workpiece through the height indicator 520 through the air pressure to measure the height or height error of the workpiece.

Referring to FIG. 5, the diameter indicator 511 is provided with, for example, a diameter indicator pedestal 516 capable of supporting the diameter indicator at one lower side thereof, and the diameter indicator pedestal 516 is a diameter indicator height adjuster 515. ) Is combined. The diameter indicator height adjuster 515 is provided in the form of a rectangular parallelepiped, and when measuring the diameter of the workpiece through this, it is possible to change the diameter measuring position of the workpiece, it is possible to measure the diameter of the various parts. The height measuring mechanism 520 includes, for example, a height indicator height adjuster 523 for adjusting the height of the height indicator 521. The height indicator height adjuster 523 adjusts the height by combining with the groove 111 provided on one side of the vertical block 110 and the fixing screw hole provided on one side of the vertical cylinder 522.

The controller 600 operates the diameter measuring mechanism 510 to detect the diameter or diameter error of the workpiece when the sensor unit 400 detects that the workpiece is seated in the correct position (diameter measuring area). After the measurement of the diameter and the diameter error is completed, the transfer unit 300 is operated to move the workpiece to the height measurement area, and then the height measuring mechanism 520 is operated to measure the height or height error of the workpiece. To control.

The transfer part 300 includes a pedestal 310 for supporting the workpiece fixing part 200 and a transfer mechanism 320 for moving the pedestal 310 to a position for measuring the height of the workpiece. In addition, the transfer mechanism 320 moves the pedestal 310 by a transfer cylinder 321 provided inside the pedestal 310.

The pedestal 310 is provided in a rectangular shape on the transfer mechanism 320, and supports the workpiece fixing part 200, the sensor unit 400 and the diameter measuring mechanism 510, the transfer cylinder 321 The workpiece is transferred to the height measuring area through). More specifically, the horizontal cylinder 514 is provided on one side of the pedestal 310. The LM guides 513 are provided at both sides of the horizontal cylinder 514. The horizontal cylinder 514 and the diameter indicator height adjuster 515 are connected, and the diameter indicator height adjuster 515 and the diameter indicator 511 are connected. Through this, when the diameter indicator 511 is broken, it is easy to disassemble and replace the parts.

The body portion 100, the vertical support block 110 is provided with the height measuring mechanism 520 and the horizontal block 120 is provided with the diameter measuring mechanism 520 and the transfer support for supporting the transfer unit 300 130, the transfer mechanism 320 and the pedestal 310 are sequentially placed on the upper surface of the transfer support 130, so that the pedestal 310 is horizontal.

The vertical block 110 is provided in a frame of a rectangular shape in the vertical direction with the ground. In addition, the vertical block 110 is provided with a groove for attaching and detaching the height measuring mechanism (520). In addition, the vertical block 110 is provided with an empty space under the groove for attaching and detaching the height measuring mechanism 520. Through this, the workpiece is transferred by the transfer unit 300, so that when the height measuring mechanism 520 measures the height of the workpiece, even if the shape of the workpiece is irregular or formed long on both sides can be measured. .

The horizontal block 120 is provided in a rectangular frame in a direction parallel to the ground. The horizontal block 120 is provided with a groove for attaching and detaching the vertical block 110, it is possible to reduce the volume of the prefabricated configuration in the situation to move the contact workpiece measuring device. In addition, the portion of the horizontal block 120 in contact with the ground can be attached to the wheel, such as to easily move the contact workpiece measuring device, if necessary to fold the wheel portion can increase the friction force.

The transfer support 130 is provided in a frame of a rectangular shape in a parallel direction on the horizontal block 120. The central portion of the transfer support 130 is configured such that the transfer cylinder 321 can be located, and has a groove to prevent the transfer mechanism 320 from being separated. In addition, the transfer support 130 may adjust the size of the groove of the transfer support 130, so that the transfer mechanism 320 is fixed.

The workpiece fixing part 200 is provided in the form of a rectangular parallelepiped and seated on an upper end of the pedestal 310. In addition, the sensor unit 400 is provided on one side of the workpiece fixing part 200.

Referring to FIG. 6, the control unit 600 receives power from the power supply unit 700. In addition, the controller 600 controls the transfer unit 300, the measurement unit 500, and the output unit 900 through the information received from the sensor unit 400 and the input unit 800. The output unit 900 outputs the information received through the control unit 600 to a monitor or a display.

Referring to FIG. 7, when the contact type workpiece measuring apparatus starts to operate (S1), the sensor unit 400 detects whether the workpiece is seated on the workpiece fixing part 200 (S2). Next, it is determined whether the workpiece is seated (S3), and when the sensor unit 400 detects that the workpiece is not seated, the sensor unit 400 again seats the workpiece on the workpiece fixing part 200. Detect if When the sensor unit 400 detects that the workpiece is seated, the diameter measuring mechanism 510 measures the diameter of the workpiece (S4). After that, the transfer unit 300 transfers the workpiece to the height measurement area (S5). After that, the height measuring mechanism 520 measures the height of the workpiece (S6). When all the measurement is completed, the measuring unit 500 and the transfer unit 300 is returned to its original position (S7).

Referring to Figure 8, the contact workpiece measuring device performs a function of determining the presence or absence of defective work as well as the diameter and height measurement function. For example, when the contact workpiece measuring apparatus starts to operate (S10), the system of the contact workpiece measuring apparatus is initialized (S20), and it detects whether the workpiece is seated (S30).

Next, the control unit 600 determines whether the workpiece is seated (S40), and when it is determined that the workpiece is not seated, the system is initialized again (S20). When it is determined that the workpiece is seated, the horizontal cylinder 514 transfers the rod 512 to fix the workpiece (S50), and the diameter indicator 511 measures the diameter of the workpiece (S60). .

Next, the control unit 600 determines whether the diameter measurement value is within the tolerance (S70). If the diameter measurement value is not within the tolerance, it is determined as defective (S80), and the diameter measuring mechanism ( 510 is reset (S90), the workpiece is transferred to the defective product storage space (S100), and the diameter measurement value is transmitted to the ICT integrated control device (S170). The ICT (Information and Communications Technologies) integrated control device enables the Internet of Things, processes the measured value or the warning signal of the contact measuring device, and serves to transmit to the control unit 600.

Next, the controller 600 determines whether the ICT integrated control device receives the diameter measurement value (S180). When the ICT integrated control device receives the diameter measurement value, all operations of the contact workpiece measuring device are terminated (S190). If the ICT integrated control device does not receive the diameter measurement value, it transmits the diameter measurement value to the ICT integrated control device again (S170). When the diameter measurement value is within the tolerance, the workpiece is transferred to the height measuring area (S110), and the height indicator 523 measures the height of the workpiece (S120).

Next, the control unit 600 determines whether the height measurement value is within the tolerance (S130). If the height measurement value is not within the tolerance, it is determined as a defective product (S80), and the height measuring mechanism ( 510 is reset (S90), the workpiece is transferred to the defective product storage space (S100), and the height measurement value is transmitted to the ICT integrated control device (S170). Thereafter, the controller 600 determines whether the ICT integrated control device receives the height measurement value (S180). When the ICT integrated control device receives the height measurement value, all operations of the contact workpiece measuring device are terminated (S190). If the ICT integrated control device does not receive the height measurement value, it transmits the height measurement value to the ICT integrated control device again (S170). When the height measurement value is within the tolerance, the control unit 600 determines to be good (S140), resets the height measuring device 520 and the diameter measuring device 510, and stores the workpiece in good quality storage space. Transfer to (S160), and transmits the diameter measurement value and the height measurement value to the ICT integrated control device (S170). Thereafter, the controller 600 determines whether the ICT integrated control device receives the diameter measurement value and the height measurement value (S180). When the ICT integrated control device receives the diameter measurement value and the height measurement value, all operations of the contact workpiece measuring device are terminated (S190). When the ICT integrated control device does not receive the diameter measurement value and the height measurement value, the height measurement value is transmitted again to the ICT integrated control device (S170).
As a result, the control unit 600 receives the measured value of the measuring unit 500 and determines that the measured value is out of a predetermined tolerance and controls the defective product to be transferred to the defective product storage space.

For the operation sequence of the contact workpiece measuring apparatus, referring to Figure 9, the workpiece is placed on the contact workpiece measuring apparatus of the initial state, the workpiece is detected by the sensor unit 400 in the diameter measurement area The diameter measuring instrument 510 measures the diameter of the workpiece. For example, the sensor unit 400 may utilize a proximity sensor. Next, referring to FIG. 10, after the diameter measuring mechanism 510 measures the diameter of the workpiece, the workpiece is transferred to the height measuring region by the moving unit 300. Next, after the height measuring mechanism 520 measures the height of the workpiece, the transfer part 300 and the measuring part 500 are returned to their initial state.

Through this, it is possible to check whether the workpiece machined on the CNC lathe has been machined to the correct value, to reduce the cost for labor (labor cost), and to efficiently inspect the workpiece processed in large quantities. In addition, by placing the workpiece on the workpiece fixing part 200 can automatically measure the diameter and height of the workpiece, it can be usefully used in an automated system.

As such, the technical configuration of the present invention described above can be understood by those skilled in the art that the present invention can be implemented in other specific forms without changing the technical spirit or essential features of the present invention.

Therefore, the embodiments described above are to be understood in all respects as illustrative and not restrictive, and the scope of the present invention is indicated by the following claims rather than the above description, and the meaning and scope of the claims and All changes or modifications derived from the equivalent concept should be interpreted as being included in the scope of the present invention.

100: body
110: vertical block
111: home
120: horizontal block
130: transfer support
200: Workpiece Fixation
300: transfer unit
310: pedestal
320: transfer mechanism
321: transfer cylinder
400: sensor
500 measuring unit
510: diameter measuring instrument
511 diameter indicator
512: push
513: LM Guide
514: horizontal cylinder
515: Diameter indicator height adjuster
516: diameter indicator pedestal
520: height measuring instrument
521 height indicator
522: vertical cylinder
523 height indicator height adjuster
600: control unit
700: power supply
800: input unit
900: output unit

Claims (5)

A body portion providing a space for measuring a workpiece;
A workpiece fixing part installed on the body to allow the workpiece to be seated and fixed;
A conveying part for conveying the workpiece fixing part to measure the workpiece;
A sensor unit provided on at least one side of the body unit and the transfer unit to detect the presence or absence of the workpiece;
A measuring unit provided on at least one side of the body unit and the transfer unit to measure a height and a diameter of the workpiece; And
And a control unit for controlling the transfer unit, the sensor unit, and the measurement unit to measure the workpiece.
When the workpiece is detected as being in the correct position by the sensor unit, the process of measuring the height and diameter of the workpiece is automatically performed by the controller and the measuring unit.
The measuring unit,
A diameter measuring mechanism installed at one side of the transfer part to measure a diameter of the workpiece; And
Is installed on one side of the body portion height measuring mechanism for measuring the height of the workpiece; includes,
The diameter measuring mechanism,
A diameter indicator measuring the diameter;
A push rod for fixing the workpiece;
An LM guide guiding a direction in which the push rod moves;
A horizontal cylinder for conveying the rod by pneumatic pressure to fix the workpiece so that the diameter indicator contacts the workpiece; And
And a diameter indicator height adjuster provided to raise and lower the diameter indicator.
When the horizontal cylinder transfers the rod through the air pressure to fix the workpiece, the diameter indicator measures the diameter or diameter error of the workpiece,
The push rod is formed at one side in a 'v' shape, and when fixing the workpiece, maximizes the area in contact with the outer peripheral surface of the workpiece,
The height measuring mechanism,
A height indicator measuring a height;
A vertical cylinder which causes the height indicator to contact the workpiece with air pressure; And
And a height indicator height adjuster provided to raise and lower the height indicator, wherein the vertical cylinder contacts the height indicator with the workpiece through air pressure to measure the height or height error of the workpiece.
The control unit,
Receiving the measured value of the measuring unit, if the measured value is out of a predetermined tolerance, it is determined as a defective product, and the contact workpiece measuring apparatus, characterized in that for controlling the transfer to the defective product storage space. The method of claim 1,
The transfer unit,
Pedestal for supporting the workpiece fixing; And
A transfer mechanism for moving the pedestal to a position for measuring the height of the workpiece;
Contact workpiece measuring apparatus comprising a. The method of claim 2,
The body portion,
A vertical block having the height measuring mechanism;
A horizontal block having the diameter measuring mechanism; And
Transfer support for supporting the transfer;
Include,
And the transfer mechanism and the pedestal are sequentially placed on the upper surface of the transfer support, so that the pedestal is horizontal. delete delete

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