KR20200020378A - Fine drill processing machine - Google Patents

Abstract

The present invention relates to a minute drill machining apparatus which can improve the lifespan and quality of a product by allowing prevention of mechanism unit friction and realization of minute repeated motions at high speeds by including an air static-pressure bearing stage and a voice coil motor. The minute drill machining apparatus comprises: a main body frame; a machining table unit installed in an upper portion of the main body frame to be moved in a Y-axis direction; a support frame vertically installed in an upper portion of the main body frame; a horizontal guide unit installed in the front surface of the support frame to be horizontally moved in an X-axis direction; a vertical guide unit installed in the front surface of the horizontal guide unit to be vertically moved in a Z-axis direction; a vertical axis minute movement control module unit installed in the front surface of the vertical guide unit to be vertically moved in a Z1-axis direction; and a minute drill unit connected to the vertical axis minute movement control module unit to machine a machining material.

Description

Fine Drill Machine {FINE DRILL PROCESSING MACHINE}

The present invention relates to a fine drill machine, and more specifically, to the air static pressure bearing stage and the voice coil motor, it is possible to prevent the mechanical part friction and to realize the fine repetitive movement at high speed to improve the life and quality of the product To a fine drill machine.

In general, the hole processing technology is the most basic method among the processing technology of the machine is increasingly high precision and high speed to improve productivity.

In particular, micro hole processing technology includes electronics, PCBs, IC masks, the watch industry and micronozzles, optical fiber connectors, aerospace electronics, medical optics, precision tools and gauges. The scope of application is expanding to fields such as Gauge), and it is increasing in speed and deepening.

As the competition for the development of highly integrated micro components is intensifying, the importance of micro hole processing technology is increasing day by day.

Micro hole processing refers to a diameter of 1 mm or less that causes trouble in processing. As the processing method, chemical high energy processing methods such as electric spark, laser, and electron beam, as well as mechanical removal processing such as drill processing, are used.

However, the high energy processing method is easier to generate a deteriorated layer than the mechanical processing method, and there may be a problem in the conductivity and the processing depth. On the other hand, fine drill machining has a disadvantage in that it is easily broken due to a decrease in tool rigidity, but the machining accuracy is high, and the aspect ratio is high and the productivity is high in terms of productivity.

There are other processing methods such as electric spark processing and laser processing for the processing of such fine holes, but the drill processing is better considering the heat deformation, roundness, straightness and precision of the workpiece. .

However, in the case of a fine drill, unlike a general drill, since the shape is thin and long, there is a limit in bending and torsional strength. Therefore, when a small error occurs in the vertical movement and aiming of the fine drill, The impact was transmitted to the fine drill so that the fine drill easily broke.

In addition, due to the movement of the material and the vibration generated during the machining by the fine drill, an error occurs in the aiming of the fine drill, so in reality it is very advanced technology to process ultra-small holes of 0.1 mm or less by drilling Due to such technical and structural limitations, there is no drilling machine capable of processing ultra-fine holes of 0.1 mm or less.

In particular, injection nozzles for air-jet looms and water-jet looms, spinning nozzles for spinning machines, automobiles, combustors, washing machines, various industrial and textile machinery In the case of spray nozzles widely used in various fields such as spinning nozzles, research on high performance of spray nozzles having ultra-fine nozzles has been actively conducted, but most of them are electric spark machining and laser (Laser). The ultra-fine processing is performed by other processing methods such as the machining process, and the equipment cost and the processing cost are increased, which causes various problems such as the failure to mass-produce and supply the spray nozzles having the ultra-fine nozzles.

In addition, the fine drill machining should have a minimum cutting speed and optimized spindle rotation speed and cutting speed in order to improve the drill breakage and machining accuracy.

Conventional micro-drilling conditions can be applied when the feed rate is increased and the cutting speed is slowed down, and this condition can be applied when the drill diameter is 0.4π or more. Even if the machining occurs by increasing the spindle rotation speed, there is a problem in that the drill breakage occurs frequently due to the chip discharge and the temperature increase due to the lack of cutting oil in the depth machining between 3 mm and 6 mm.

In addition, the conventional micro-drilling processing conditions should be processed under the conditions of increasing the spindle rotation speed and cutting speed with the minimum cutting amount (0.02mm ~ 0.1mm) by reducing the one-feed amount and increasing the cutting speed. It can save time.

However, in order to satisfy this condition, the vertical axis has to be up and down 300 times at least 0.02mm and 60 times at 0.1mm when processing one hole, but the equipment with LM guide structure moves finely within 10mm. If it persists, there was a problem that the flaking occurs due to the breakdown of the oil film LM guide and ball screw breakage occurs.

Republic of Korea Patent Publication No. 10-0727520

Therefore, the present invention has been made in order to solve the above problems, the object is that by applying the air static bearing guide, the voice coil motor and the air static bearing spindle, it is possible to use the fine movement and high rotation (14,000 ~ 200,000rpm) spindle The present invention provides a fine drill machine capable of preventing drill breakage, minimizing one-time cutting amount, and increasing workability.

The fine drill machine according to an embodiment of the present invention for achieving the above object is a main body frame having a predetermined form, the processing table portion is installed on the upper portion of the main body frame to be movable in the Y-axis direction, the main body A support frame installed vertically on the upper part of the frame, a left and right guide part installed on the front of the support frame so as to be movable left and right in the X-axis direction, and installed on a front side of the left and right guide part to move vertically in the Z-axis direction The upper and lower guide parts, which are installed in front of the upper and lower guide parts, are installed on the front of the upper and lower guide parts so as to move vertically in the Z1 axis direction, and are connected to the vertical axis fine motion control module part to process the workpiece. It may include a drill portion.

The processing table portion Y-axis rail is installed on the upper portion of the main frame, Y-axis moving plate moved back and forth along the Y-axis rail by the rotation of the shaft seated on the Y-axis rail and driven by the motor, and the Y It may include a table provided on the top of the shaft moving plate on which the workpiece is placed.

The left and right guides are horizontally mounted to the front and rear of the support frame in an X axis rail, an X axis moving plate connected to the X axis rail and moved to the left and right, and the X axis moving plate connected to the X axis moving plate. It may include a shaft and a motor to allow the plate to move.

The upper and lower guide parts are Z-axis rails installed vertically in front of the left and right guide parts, Z-axis moving plates connected to the Z-axis rails and moved up and down, and Z-axis moving connected to the Z-axis moving plates. It may include a shaft and a motor to move the plate up and down.

The vertical axis fine movement control module unit is installed in front of the upper and lower guide part to guide the micro drill unit to move up and down in the Z1 axis direction, and the guide frame is installed on the guide frame to move the fine drill unit for processing the workpiece A voice coil motor for guiding the frame, an air static bearing bearing guide installed at the rear of the guide frame to prevent the friction by floating the guide frame at a constant air pressure, and a fine drill unit outside the front of the guide frame. And an air hydrostatic bearing spindle to prevent rotational friction and prevent vibration and resistance.

The guide frame is connected to the air hydrostatic bearing guide in front of the upper and lower guide parts and is provided with a guide plate which is guided up and down in the Z1 axis according to the driving of the voice coil motor, and is provided at the front of the guide plate and operated by the air hydrostatic bearing spindle. It may include a flow preventing device to prevent the flow of the fine drill portion.

The voice coil motor may determine a dedicated position control, a torque control, a high speed repetition position using a voice coil dedicated controller, and perform fine repetitive movement at a high speed in a range of about 10 mm without friction.

The air hydrostatic bearing guide may be installed in plural so that the guide frame can be stably guided to the rear of the guide plate of the guide frame.

The air hydrostatic bearing spindle may have a high rotation of 14,000 ~ 200,000rpm when drilling a small diameter of 0.05π ~ 0.4π.

As described above, according to the micro-drill machine according to the present invention, in addition to the vertical axis of the X-axis, the Y-axis, and the Z-axis that moves the drill up and down, the structure that can continuously up and down the 0.02 mm to 1 mm section in the 20 mm section It is possible to prevent the breakage of the drill generated when drilling below 0.4π, and to improve the service life and workability of the product by equipping the vertical movement control module with the air static pressure bearing guide and the voice coil motor. It has the effect of maximizing performance and work efficiency.

1 is a perspective view showing a fine drill machine according to the present invention.
Figure 2 is a front view showing a fine drill machine according to the present invention.
Figure 3 is a side view showing a fine drill machine according to the present invention.
Figure 4 is an enlarged perspective view showing the vertical axis movement control module of the fine drill machine according to the present invention.
5 is a front view showing an operating state of the fine drill machine according to the present invention.

As the invention allows for various changes and numerous embodiments, particular embodiments will be illustrated in the drawings and described in detail in the written description. However, this is not intended to limit the present invention to specific embodiments, it should be understood to include all modifications, equivalents, and substitutes included in the spirit and scope of the present invention.

In the drawings, embodiments of the invention are not limited to the specific forms shown, and are exaggerated for clarity. Although specific terms have been used in the present specification, they are used for the purpose of describing the present invention and are not used to limit the scope of the present invention as defined in the meaning or the claims.

The expression 'and / or' is used herein to mean at least one of the components listed before and after. In addition, the expression 'connected / combined' is used in the sense of including directly connected to or indirectly connected to other components. In this specification, the singular forms also include the plural unless specifically stated otherwise in the phrases. Also, as used herein, components, steps, operations, and elements referred to as 'comprising' or 'comprising' refer to the presence or addition of one or more other components, steps, operations, and elements.

In the description of the embodiments, each layer (film), region, pattern or structures may be “top” or “under” the substrate, each side (film), region, pad or pattern. "Formed" includes all that are formed directly or through another layer. Criteria for the top / bottom or bottom / bottom of each layer are described with reference to the drawings.

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

1 is a perspective view showing a fine drill machine according to the present invention, Figure 2 is a front view showing a fine drill machine according to the present invention, Figure 3 is a side view showing a fine drill machine according to the invention, Figure 4 Is an enlarged perspective view showing the vertical axis fine movement control module of the fine drill machine according to the invention, Figure 5 is a front view showing the operating state of the fine drill machine according to the present invention.

As shown in Figures 1 to 5, the fine drill machine according to the present invention, the main frame 100, the machining table 200, the support frame 300, the left and right guide portion 400, and up and down The guide part 500, the vertical axis fine motion control module part 600, and the fine drill part 700 are included.

The body frame 100 is placed on the floor to form a square shape.

The processing table 200 is installed on the upper portion of the main frame 100, the processing material 10 is raised to move in the Y-axis direction can be processed by the fine drill unit 700.

In addition, the machining table 200 includes a Y-axis rail 210, a Y-axis moving plate 220, and a table 230.

The Y-axis rail 210 is installed on the upper portion of the main body frame 100, and a plurality of parallel to each other left and right at regular intervals along the longitudinal direction before and after.

The Y-axis moving plate 220 is seated on the Y-axis rail 210, is connected to the shaft (S) along the Y-axis rail 210 while the shaft (S) is rotated in accordance with the drive of the motor (M). Y-axis moves before and after.

The table 230 is provided on the upper portion of the Y-axis moving plate 220, the processing material 10 for processing into the fine drill portion 700 is raised.

The support frame 300 is installed vertically on the upper portion of the main frame 100.

In addition, the support frame 300 is made of a '∩' shape.

The left and right guide part 400 is installed at the front of the support frame 300 to move left and right in the horizontal X axis.

The left and right guide part 400 may include an X-axis rail 410, an X-axis moving plate 420, a shaft S, and a motor M.

The X-axis rail 410 is horizontally installed in the horizontal direction of the left and right in front of the support frame 300.

In addition, the X-axis rail 410 is provided in plurality in parallel to each other at a predetermined interval in the horizontal direction.

The X-axis moving plate 420 is connected to the X-axis rail 410 to move left and right along the X-axis rail 410 in the horizontal X-axis.

The shaft S and the motor M are connected to the X-axis moving plate 420 to move the X-axis moving plate 420 along the X-axis rail 410.

The upper and lower guide part 500 is installed at the front of the left and right guide part 400 to be able to move up and down in the vertical Z-axis.

The vertical guide part 500 includes a Z-axis rail 510, a Z-axis moving plate 520, a shaft S, and a motor M.

The Z-axis rail 510 is vertically installed vertically in front of the X-axis moving plate 420 of the left and right guide part 400.

In addition, the Z-axis rail 510 is provided in plurality in parallel to each other left and right at regular intervals in the vertical direction.

The Z-axis moving plate 520 is connected to the Z-axis rail 510 and is moved up and down along the Z-axis rail 510 along a vertical axis (Z-axis) in the vertical direction.

The shaft S and the motor M are connected to the Z-axis moving plate 520, and the shaft S is rotated by the driving of the motor M along the Z-axis moving plate 520 along the Z-axis rail 510. ) Can be moved.

The vertical axis fine motion control module 600 is installed on the front of the vertical guide portion 500 so as to move up and down along the Z axis, which is a vertical axis along with the Z axis.

As shown in FIGS. 1 and 4, the vertical axis fine motion control module 600 includes a guide frame 610, a voice coil motor 620, an air hydrostatic bearing guide 630, and an air hydrostatic bearing spindle 640. ).

The guide frame 610 is installed in front of the Z-axis moving plate 520 of the upper and lower guide part 500 to move the fine drill part 700 in the Z1 axis direction, which is a vertical axis along with the Z axis. .

In addition, the guide frame 610 is provided on the front of the Z-axis moving plate 520 of the upper and lower guide part 500, the guide plate 611 which is guided up and down in the Z1 axis according to the driving of the voice coil motor 620. And, it is provided while wrapping the fine drill unit 700 on the front of the guide plate 611 is to include a flow preventing port 612 to prevent the flow of the fine drill unit 700.

The voice coil motor 620 is connected to the guide frame 610 to move the fine drill unit 700 for processing the workpiece 10 placed on the processing table 200, the guide frame 610 ) Can be guided up and down.

In addition, the voice coil motor 620 uses a separate voice coil dedicated controller (not shown) to determine a dedicated position control, torque control, and high speed repeating position, and at a high speed in a range of about 10 mm without friction. It is a fine repetitive movement.

Meanwhile, instead of the voice coil motor 620, a linear motor may be used, but the present invention is not limited thereto.

The air hydrostatic bearing guide 630 is installed on the rear of the guide frame 610 to be able to prevent the friction of the guide frame 610 by floating the guide frame 610 by the air static pressure.

In addition, the air hydrostatic bearing guide 630 may be guided steadily up and down the Z1 axis according to the driving of the voice coil motor 620 on the back of the guide plate 611 of the guide frame 610. It will be installed in plural.

The air hydrostatic bearing spindle 640 is provided at the front of the guide plate 611 of the guide frame 610 is provided to the outside of the fine drill unit 700 to prevent the rotational friction of the fine drill unit 700, vibration and resistance Can be prevented.

The air static bearing spindle 640 has a high rotation of 14,000 ~ 200,000rpm when small diameter drill processing of 0.05π ~ 0.4π.

That is, by using the air static pressure bearing spindle 640, the high rotation of the fine drill unit 700 is possible, so that small diameter fine drill processing is possible.

The fine drill unit 700 is connected to the vertical axis micro-movement control module 600 to be able to fine-drill the processing material 10 mounted on the table 230 of the machining table 200.

Looking at the action state according to the fine drill machine of the present invention made of a structure as described above are as follows.

In the state where the workpiece 10 to be processed is placed on the table 230 of the machining table 200, the left and right guide part 400 moves in the horizontal X axis, and the left and right guide part 400 Machining table portion 200 perpendicular to the X axis of the vertical axis is moved to the Y axis and the Z axis forming a right angle in the space of the X, Y axis of the left and right guide portion 400 and the machining table 200 The upper and lower guide parts 500 provided on the moving material 10 can be processed.

In addition, while the vertical axis fine motion control module 600 provided on the front of the upper and lower guide part 500 is moved to the Z1 axis, it is possible to precisely drill the small diameter of the workpiece 10.

In addition, by using the voice coil motor 620 to move the guide frame 610 in which the fine drill unit 700 is installed, it is possible to realize a fine repetitive motion within a 10mm section to be precise fine drill processing .

In addition, by providing an air hydrostatic bearing guide 630 and an air hydrostatic bearing spindle 640 in the guide frame 610, when the guide frame 610 is moved according to the driving of the voice coil motor 620, rotational friction is achieved. It is possible to maximize the quality of the product because it does not occur and no breakage occurs and the precision decreases with time.

As described above, the present invention is not limited to the above-described specific preferred embodiment, and any person having ordinary skill in the art to which the present invention pertains without departing from the gist of the present invention claimed in the claims. Modifications are possible, of course, such changes are within the scope of the claims.

10: processing material 100: main frame
200: machining table 210: Y-axis rail
220: Y-axis moving plate 230: table
300: support frame 400: left and right guide part
410: X-axis rail 420: X-axis moving plate
500: upper and lower guide part 510: Z axis rail
520: Z-axis moving plate 600: vertical axis movement control module
610: guide frame 611: guide plate
612: flow preventing device 620: voice coil motor
630: air static pressure bearing guide 640: air static pressure bearing spindle
700: fine drill part M: motor
S: shaft

Claims (9)

Body frame having a certain form;
A processing table unit installed on the main frame to be movable in the Y-axis direction;
A support frame installed vertically on an upper portion of the main body frame;
A left and right guide part installed at the front of the support frame to be movable left and right in the X-axis direction;
A vertical guide part installed at a front side of the left and right guide part so as to be movable up and down in the Z-axis direction;
A vertical axis micro-movement control module unit installed at a front side of the vertical guide part to be movable up and down in the Z1 axis direction; And
A fine drill part connected to the vertical axis motion control module to process a workpiece;
Fine drill machine comprising a. The method of claim 1,
The processing table portion,
A Y-axis rail installed on an upper portion of the main body frame;
A Y-axis moving plate seated on the Y-axis rail and moved back and forth along the Y-axis rail by rotation of a shaft rotated by a drive of a motor; And
A table provided on an upper portion of the Y-axis moving plate on which a workpiece is placed;
Fine drill machine comprising a. The method of claim 1,
The left and right guide portion,
An X-axis rail horizontally installed left and right in front of the support frame;
An X-axis moving plate connected to the X-axis rail and moved left and right; And
A shaft and a motor connected to the X-axis moving plate to move the X-axis moving plate;
Fine drill machine comprising a. The method of claim 1,
The upper and lower guide portion,
Z-axis rail installed vertically in front of the left and right guide portion;
A Z-axis moving plate connected to the Z-axis rail and moved up and down; And
A shaft and a motor connected to the Z axis moving plate to move the Z axis moving plate up and down;
Fine drill machine comprising a. The method of claim 1,
The vertical axis fine motion control module unit,
A guide frame installed at the front of the vertical guide part to move the fine drill part in the Z1 axis direction;
A voice coil motor installed in the guide frame to guide the guide frame to move the fine drill part for processing the workpiece;
An air hydrostatic bearing guide installed at a rear surface of the guide frame to prevent the friction by floating the guide frame at a constant air pressure; And
An air static pressure bearing spindle provided on the front of the guide frame to the outside of the fine drill part to prevent rotational friction and to prevent vibration and resistance;
Fine drill machine comprising a. The method of claim 5, wherein
The guide frame,
A guide plate connected to an air static pressure bearing guide at a front side of the upper and lower guide parts, the guide plate being guided up and down along the Z1 axis according to driving of a voice coil motor; And
A flow prevention tool provided on the front surface of the guide plate to prevent the flow of the fine drill part operated by the air static pressure bearing spindle;
Fine drill machine comprising a. The method of claim 5, wherein
The voice coil motor is a micro-drill machine, characterized in that by using a voice coil dedicated controller to determine the dedicated position control, torque control, high speed repetition position and fine repetitive movement at a high speed within approximately 10 mm section without friction. The method of claim 5, wherein
The air static pressure bearing guide is a fine drill machine, characterized in that a plurality of guide frames are installed on the rear guide plate of the guide frame to be stably guided. The method of claim 5, wherein
The air static pressure bearing spindle is a fine drill machine, characterized in that it has a high rotation of 14,000 ~ 200,000rpm when drilling a small diameter of 0.05π ~ 0.4π.

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