KR102188835B1 - 4-axis drilling machine - Google Patents

Abstract

The present invention relates to a 4-axis drilling machine, and in particular, it is possible to accurately position not only by digital control in the X, Y, Z 3-axis directions, but also to precisely perform a hole or milling on the inner circumferential surface of the hole in the axial direction. It relates to a 4-axis drilling machine.
The four-axis drilling machine 1000 of the present invention includes an X-axis moving means 1100, a Y-axis moving means 1200 installed to be guided from the top of the X-axis moving means, and a guide from the top of the Y-axis moving means. The control box is installed so that it is rotatably installed on one side of the control box, and the origin coordinates and each processing position (L1, L2, L3…) can be input using the touch screen. A control means (1300) consisting of a coordinate control unit, and a Z-axis moving means (1400) installed in the control box; It includes a hole processing power supply means (1500) installed in the Z-axis moving means, and is installed in close contact with the inner side of the X, Y, Z axis first and second screw guide bearings constituting the X, Y, Z axis moving means. X, Y, Z-axis screw foreign matter inflow prevention cover (1170, 1270, 1460) provided to cover the X, Y, Z-axis screw on the top of the X, Y, Z-axis screw, and the X, Y, Z-axis It is fastened to the screw and fixed at a predetermined position on the lower surface of the Y-axis base, the control box and the drilling operation box, and the X, Y, Z-axis screw foreign material inflow prevention cover is seated to cover the X, Y, Z-axis screw from the top to prevent foreign matter It includes X, Y, Z axis feed nuts (1280, 1480, 1550) formed with cover seating grooves so as not to flow from the top.

Description

4-axis drilling machine{4-AXIS DRILLING MACHINE}

The present invention relates to a 4-axis drilling machine, and more particularly, it is possible to accurately position movement in the X, Y, Z 3-axis direction by digital control, as well as increase productivity by preventing foreign substances from entering the screw. It relates to a 4-axis drilling machine capable of precisely performing a hole or milling on an inner peripheral surface of a hole in the direction.

In general, in the machining of a very complex and elaborate structure, surface and hole cutting operations are performed.

Such a complex device is manufactured and formed through a cutting operation by a conventional machining center or the like.

The conventional molding forming method for forming the complex mold is a manufacturing process by manual modeling and, due to problems in the complex manufacturing process, relatively increasing the price of the product and consuming unnecessary processing time. It was a very inefficient problem in terms of; Alternatively, a conventional processing machine for manufacturing the tire mold, that is, a machining center, is a complex machine tool in which a boring machine, a milling machine, and a drilling machine are integrated into one, with linear motion, Three-axis machining work is performed by rotational motion and spindle rotational motion. Therefore, when machining a mold with a sophisticated and complex structure through such three-axis machining, the cutting chip separated from the workpiece is caught in the screw and the tool caused by cutting interference. Since it is inevitable to prevent the rotation of the tire, that is, the occurrence of an undercut phenomenon, it has a considerable problem in use that makes it impossible to actually process a tire mold.

Reference: Korean Patent No. 10-1265708 The name of the invention "4-axis machining machining center".

The present invention was devised to solve the above requirements, and the X, Y, Z axis screw foreign material inflow prevention cover is assembled to cover the upper part of the X, Y, Z axis screw so that the foreign material is X, Y, Z The purpose of this is to provide a 4-axis drilling machine with improved productivity since it does not flow in from the top of the shaft screw and thus does not cause malfunction.

In the present invention, the jog handle is installed at a predetermined position of the control box constituting the control means to be connected to the control board, so that manual movement and processing of axes such as X/Y/Z in the +/- direction using the jog key on the operation panel are easy. Its purpose is to provide a 4-axis drilling machine that is designed to be.

It is an object of the present invention to provide a four-axis drilling machine that is very convenient to use by matching the direction of appearance of the tool fixing chuck and the operation direction of the processing operation handle.

In the present invention, a hole formed in a direction perpendicular to the axial center of the tool fixing chuck or milling is performed by a connector fitted and fixed to the tool fixing chuck and an angle head that is fitted while surrounding the tool fixing chuck and is detachably assembled to the tool fixing chuck. The purpose of this is to provide a 4-axis drilling machine made easy.

The four-axis drilling machine according to the present invention for achieving the above object includes an X-axis moving means, a Y-axis moving means installed to be guided from the top of the X-axis moving means, and a guide from the top of the Y-axis moving means. It is installed so that the control box of a rectangular parallelepiped in which the control board, motor drive, and power supply are connected and is rotatably installed on one side of this control box, and the origin coordinates and each processing position (L1, L2, L3...) control means comprising a coordinate control unit configured to input X, Y, and Z coordinates, and a Z-axis moving means installed in the control box; It includes a hole processing power supply means installed in the Z-axis moving means, and is installed in close contact with the inner surface of the first and second screw guide bearings of the X, Y, and Z axes constituting the X, Y, and Z-axis moving means, An X, Y, Z axis screw foreign substance inflow prevention cover provided to cover the X, Y, Z axis screws from the top of the Y, Z axis screws, and the X, Y, Z axis screws are connected to the Y axis base and controlled. And while being fixed at a predetermined position on the lower surface of the drilling operation box, the X, Y, Z axis screw foreign material inflow prevention cover is seated to cover the X, Y, Z axis screw from the top to prevent foreign matter from entering from the top. It characterized in that it further comprises an X, Y, Z axis feed nut.

Here, a jog handle, which is connected to the control board at a predetermined position of the control box constituting the control means, is further connected and installed so that the axes such as X/Y/Z can be manually moved in the +/- direction using the jog key on the operation panel. To do.

In addition, the machining operation handle part is disposed upwardly with respect to the axial center of the tool fixing chuck, and a first gear is installed inside the drilling operation box so that the first gear rotates synchronously with the machining operation handle part. , An idle gear installed so as to reciprocate the tool fixing chuck back and forth by engaging with the first gear and rotating from the upper side based on the axial center of the tool fixing chuck and being engaged with the rack gear installed at the rear of the tool fixing chuck is provided, It is characterized in that the projection and exit direction of the tool fixing chuck and the operation direction of the processing operation handle unit are matched.

In addition, the X, Y, Z axis feed nut is made of a hexahedron, but is formed through a screw screw formed to be fastened to the X, Y, Z axis screw at the center of one side, and the screw screw is formed in a U shape on the upper surface of the screw screw. A cover receiving groove cut in the form of a wrapper, a fastening means insertion groove formed so that the bolt screw portion protrudes by inserting a bolt from the opposite side of the surface where the cover receiving groove is formed, and X,Y, on the opposite side where the cover receiving groove is formed. It is characterized by having a dog assembly screw portion formed to fasten the Z-axis limit switch dog with a bowl.

Meanwhile, an angle head is further fixed to the tool fixing chuck by being fitted while enclosing the tool fixing chuck and a connector fitted and fixed to the tool fixing chuck, and the angle head includes an annular fastening nut fastened to the tool fixing chuck, and the A housing that is fitted and fixed to the center of the axis of the tool fixing chuck by an annular fastening nut, an angle changeable bundle fixed with a bolt at the end of the housing, and an angle changeable bundle positioned at the axis center of the housing so as to be rotatable. The first bevel gear is fitted with the connector to receive the rotational force of the connector, and the first bevel gear is engaged with the first bevel gear in a direction of 90 degrees to transmit the rotational force of the first bevel gear in the direction of 90 degrees. , A second bevel gear rotatably installed via a second bearing housing, and a tool coupling portion installed at an end of the second bevel gear to selectively assemble a tool for machining.

As described above, according to the four-axis drilling machine according to the present invention, the X, Y, Z-axis screw foreign matter inflow prevention cover is assembled to cover the upper part of the X, Y, Z-axis screw, so that the foreign matter is Since it does not flow in from the upper part of the motor and does not cause malfunction, there is an effect of improving productivity.

According to the four-axis drilling machine according to the present invention, the X, Y, Z axis limit switch dog fixed on the bottom surface of the X, Y, Z axis feed nut moves while the X, Y, Z axis moving means By pressing the X, Y, Z axis limit switches installed in the base and control box, there is an effect that the moving range can be easily controlled.

According to the 4-axis drilling machine according to the present invention, a jog handle is installed at a predetermined position of the control box constituting the control means to be connected to the control board, and the axes such as X/Y/Z are moved in the +/- direction using the jog key on the operation panel. It has the effect of being able to move manually.

According to the four-axis drilling machine according to the present invention, the processing operation handle part is arranged upward based on the axial center of the tool fixing chuck, and at the same time, it is engaged with the first gear installed to rotate synchronously on the same axis as the processing operation handle part. By installing an idle gear so that the tool fixing chuck can reciprocate back and forth by meshing with the rack gear installed at the rear of the tool fixing chuck, the emergence and exit direction of the tool fixing chuck and the operating direction of the machining operation handle are matched, making it very convenient to use. It works.

According to the 4-axis drilling machine according to the present invention, a cover receiving groove is formed in the X, Y, and Z axis feed nuts to cover the X, Y, and Z axis screws.

According to the four-axis drilling machine according to the present invention, a hole or milling process on the inner circumferential surface of the hole by a connector fitted and fixed to the tool fixing chuck, and an angle head fitted while surrounding the tool fixing chuck and detachably assembled to the tool fixing chuck. There is an effect that it becomes easy to do.

1 is a perspective view of a 4-axis drilling machine according to an embodiment of the present invention,
Figure 2 is a rear perspective view of Figure 1,
Figure 3 is a perspective view showing the X-axis moving means of Figure 1,
Figure 4 is a perspective view showing the Y-axis moving means of Figure 1,
Figure 5 is a perspective view showing the Z-axis moving means and control means of Figure 1;
Figure 6 is a perspective view showing a hole cutting power supply means of Figure 1;
Figure 7 is a front view of Figure 1,
Figure 8 is a plan view of Figure 7;
9 is a cross-sectional view taken along line A-A of FIG. 8;
10 is a cross-sectional view taken along line B-B of FIG. 8;
11 is a perspective view showing a state in which the X-axis moving means and the X-axis feed nut of FIG. 1 are assembled;
12 is a perspective view showing the X, Y, Z fitting nut of the present invention,
13 is a front view of FIG. 12,
14 is a plan view of FIG. 12;
15 is a bottom view of FIG. 12;
16 is a perspective view showing a state in which an angle head is assembled to the hole processing rotation power supply means of FIG. 1;
17 is a perspective view showing a state in which the angle head is separated from the hole processing rotation power supply means in FIG. 16;
18 is a front view showing the angle head of FIG. 16;
19 is a plan view of FIG. 18;
20 is a right side view of FIG. 18;
21 is a left side view of FIG. 18;
22 is a cross-sectional view taken along line C-C in FIG. 19;
23 is a cross-sectional view taken along line D-D in FIG. 21.

Hereinafter, a 4-axis drilling machine according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

In adding reference numerals to the components of the drawings, the same components are to have the same reference numerals as possible even if they are displayed on different drawings, and a known function that is judged to unnecessarily obscure the subject matter of the present invention. And detailed description of the configuration will be omitted. Further, directional terms such as'top','bottom','front','back','front end','front','rear end' are used in connection with the orientation of the disclosed drawing(s). Since the components of the embodiments of the present invention can be positioned in various orientations, the directional terminology is used for illustrative purposes and is not limiting.

The four-axis drilling machine 1000 of the present invention, as shown in Figs. 1 to 11, the X-axis moving means 1100, the Y-axis moving means 1200, the control means 1300, the Z-axis moving means (1400), and a hole processing rotation power supply means (1500) and a jog handle (1600).

Here, the X-axis moving means 1100 includes an X-axis base 1110, an X-axis control motor 1120 installed at one end of the X-axis base, and an X-axis first installed at both ends of the X-axis base, respectively. ,2 screw guide bearings 1131,1132, an X-axis screw 1140 connected to the X-axis control motor and rotatably supported by the first and second X-axis screw guide bearings, and the longitudinal direction of the X-axis base The X-axis LM guide 1150 installed on both upper surfaces, the X-axis cable runner 1162 installed on one side in the longitudinal direction of the X-axis base, and the inner surfaces of the X-axis first and second screw guide bearings are closely installed. An X-axis screw foreign matter inflow prevention cover 1170 is provided on the top of the X-axis screw to cover the X-axis screw.

Therefore, when the X-axis screw 1140 rotates by receiving the rotational force of the X-axis control motor 1120, the residue of the workpiece falling into the X-axis screw 1140 by the X-axis screw foreign matter inflow prevention cover 1170 Since it does not flow into the screw 1140 and does not cause a malfunction, productivity is improved.

The Y-axis moving means 1200 includes a Y-axis base 1210, a Y-axis control motor 1220 installed at one end of the Y-axis base, and a Y-axis first installed at both ends of the Y-axis base, respectively. ,2 screw guide bearings 1231 and 1232, Y-axis screw 1240 connected to the Y-axis control motor and rotatably supported by Y-axis first and second screw guide bearings, and the longitudinal direction of the Y-axis base Y-axis LM guides 1250 installed on both upper surfaces, Y-axis cable runner 1262 installed on one side of the Y-axis base in the longitudinal direction to locate Y-axis cables, and the Y-axis 1st and 2nd screw guides With the Y-axis screw foreign matter inflow prevention cover 1270 installed in close contact with the inner side of the bearing to cover the Y-axis screw from the top of the Y-axis screw, and a pair of left and right sides of the Y-axis base, respectively, are assembled. The X-axis LM guide block 1271 is a pair of left and right each fitted with the X-axis LM guide, and a screw screw 1281 is fastened to the X-axis screw to be fixed at a predetermined position on the lower surface of the Y-axis base, and the X-axis screw An X-axis feed nut (1280) with a cover seating groove (1282) formed to prevent foreign matters from entering from the top by covering the X-axis screw from the top, and the X-axis feed nut (1280), which is fixed to the bottom of the X-axis feed nut. It is equipped with an X-axis limit switch dog 1290 that is designed to be pressed while moving the left and right X-axis limit switches (not shown) installed on the shaft base.

Therefore, when the Y-axis screw 1240 rotates by receiving the rotational force of the Y-axis control motor 1220, the residue of the workpiece falling to the Y-axis screw 1240 by the Y-axis screw foreign matter inflow prevention cover 1270 is Since it does not flow into the screw 1240 and does not cause a malfunction, productivity is improved.

In addition, when the X-axis screw 1140 is fastened to the X-axis feed nut 1280 to receive the rotational force of the X-axis control motor 1120 and the X-axis screw 1140 rotates, the Y-axis base 1210 The X-axis LM guide block 1271 fixed at the bottom is guided by the X-axis LM guide 1150 so that the Y-axis base 1210 can reciprocate in the X-axis, and at the same time, it is assembled to the X-axis feed nut 1280. The X-axis limit switch dog 1290 is limited to move in the X-axis direction by pressing a pair of X-axis limit switches.

In addition, the control means 1300 includes a control board programmed to operate a coordinate control unit of a touch screen to be described later, a motor drive connected to the control board, and a power supply connected to supply power to the control board and the motor drive. The control box 1310 of a rectangular parallelepiped including a, and is rotatably installed on one side of the control box, and the origin coordinates and respective processing positions (L1, L2, L3...) are X,Y using the touch screen 1321 It includes a coordinate control unit 1320 configured to input the Z coordinate.

Therefore, when any one of the processing positions L1, L2, L3... input to the coordinate control unit 1320 is pressed, the hole processing rotation power supply unit 1500 is moved to the selected position by the X-axis moving unit 1100. ) And the Y-axis moving means 1200 and the Z-axis moving means 1400 automatically move to the correct position.

Meanwhile, the Z-axis moving means 1400 includes a Z-axis control motor 1410 installed on an upper portion of the control box 1310, and first and second Z-axis screw guide bearings installed at both ends of one side of the control box ( 1421, 1422), a Z-axis screw 1430 connected to the Z-axis control motor and rotatably supported by Z-axis first and second screw guide bearings, and a Z-axis LM guide 1440 installed on one side of the control box. ), and a Z-axis cable runner 1452 installed on one side of the control box in the longitudinal direction, and the Z-axis first and second screw guide bearings are closely installed to cover the Z-axis screw from the top of the Z-axis screw. The Z-axis screw foreign matter inflow prevention cover 1460 and a pair of left and right sides of the control box are assembled together, and a pair of left and right Y-axis LM guide blocks 1470 which are fitted with the Y-axis LM guide 1250, A screw screw 1481 is fastened to the Y-axis screw 1240, fixed to a predetermined position on the lower surface of the control box, and fastened to a predetermined position on the lower surface of the control box 1310, and the Y-axis screw foreign matter inflow prevention cover A Y-axis feed nut (1480) with a cover seating groove (1482) formed thereon to prevent foreign matter from entering from the top by covering the Y-axis screw (1240) from the top and fixed to the bottom of the Y-axis feed nut It includes a Y-axis limit switch dog (1490) to be pressed while moving the pair of Y-axis limit switches.

Therefore, when the Z-axis screw 1430 rotates by receiving the rotational force of the Z-axis control motor 1410, the residue of the workpiece falling to the Z-axis screw 1430 by the Z-axis screw foreign matter inflow prevention cover 1460 is Z-axis. Since it does not flow into the screw 1430 and does not cause a malfunction, productivity is improved.

In addition, when the Y-axis screw 1240 is fastened to the Y-axis feed nut 1480 to receive the rotational force of the Y-axis control motor 1220 and the Y-axis screw 1240 rotates, the lower part of the control box 1310 The Y-axis LM guide block 1470 fixed to the Y-axis LM guide 1250 is guided by the Y-axis LM guide 1250 to enable reciprocating movement in the Y-axis, and the Y-axis limit switch dog 1490 assembled on the Y-axis feed nut 1480. The control box 1310 by pressing a pair of Y-axis limit switches (not shown) limits the range of reciprocating movement in the Y-axis direction.

In addition, the hole processing rotation power supply means 1500, the Z-axis LM guide block 1510, which is a pair of left and right each fitted with the Z-axis LM guide 1440, and the Z-axis LM guide block is fixed to one side. A drilling operation box 1520 equipped with a motor and a driving force transmission unit therein, a speed control unit 1531 installed on one side of the drilling operation box, and a forward/reverse direction perpendicular to the Z-axis screw on one side of the drilling operation box And a tool fixing chuck 1530 that can be selectively fixed, a processing operation handle part 1540 installed in the drilling operation box so that the tool fixing chuck can be processed while moving forward and backward, and the Z-axis LM guide block is installed. A screw screw 1551 is fastened to the Z-axis screw 1430 on the side and fixed, and the Z-axis screw foreign matter inflow prevention cover 1460 is seated to cover the Z-axis screw from the top to prevent foreign matter from entering from the top. A Z-axis feed nut 1550 having a groove 1552 formed thereon, and a Z-axis limit switch dog 1560 fixed to the bottom surface of the Z-axis feed nut and pressed while moving the Z-axis limit switch.

Therefore, when the Z-axis LM guide block 1510 is assembled with the Z-axis LM guide 1440 and the Z-axis screw 1430 is rotated by the Z-axis control motor 1410, the Z-axis feed nut 1550 is assembled. The drilling operation box 1520 is raised and lowered in the Z-axis direction, and at this time, the drilling operation box 1520 is installed in the Z-axis moving means 1400 by the Z-axis limit switch dog 1560. It moves within the range of the limit switch, and the speed control part 1531 and the machining operation handle part 1540 are operated while the tool is assembled to the tool fixing chuck 1530 to control the advance and reverse of the tool fixing chuck 1530. It is processed while manipulating.

Here, the tool fixing chuck 1530 is provided with a movement limiting lever 1532 to selectively fix forward and backward movement in a direction perpendicular to the Z-axis screw.

Therefore, the movement of the tool fixing chuck 1530 can be limited by the movement limiting lever 1532, so that the X of the X-axis moving means 1100, the Y-axis moving means 1200, and the Z-axis moving means 1400, Accurate movement is possible when it is moved by the Y, Z axis control motor.

In addition, the machining operation handle unit 1540 is disposed upwardly with respect to the axial center of the tool fixing chuck 1530, and a first gear () to rotate synchronously coaxially with the machining operation handle unit 1540 ( 1541 is installed inside the drilling operation box 1520, and engaged with the first gear 1541 from the upper side based on the axial center of the tool fixing chuck 1530 to rotate and rotate the tool fixing chuck 1530. An idle gear 1542 installed so as to reciprocate the tool fixing chuck back and forth is provided in mesh with the rack gear 1531 installed at the rear.

Therefore, the processing operation handle unit 1540 is disposed upward based on the axial center of the tool fixing chuck 1530 so that the processing operation handle unit 1540 operates with the X axis base 1110 of the X axis moving means 1100. It is possible to secure a space, and the idling gear 1542 makes it easy to use because the emergence and exit direction of the tool fixing chuck 1530 and the handle operation direction of the machining operation handle unit 1540 are matched.

In addition, the X, Y, Z axis feed nut (1280, 1480, 1550), as shown in Figs. 12 to 15, is made of a hexahedron, X, Y, Z axis screw (1140, 1240, 1430) and through-formed screw screws (1281,1481,1551) and cover receiving grooves (1282,1482,1552) cut in the form of enclosing the screw screw in a U shape from the upper surface of the screw screw, Fastening means insertion grooves (1283, 1483, 1553) formed so that the bolt screw part protrudes by inserting a bolt (not shown) from the opposite surface of the surface where the cover receiving groove is formed, and X, Y, Z on the opposite surface of the cover receiving groove. It has a structure with dog assembly screw portions 1284, 1484, 1554 formed to fasten the axis limit switch dogs 1290, 1490, and 1560 with a bolt.

Therefore, the X, Y, Z axis limit switch dogs 1290, 1490, 1560 are assembled with a bolt on the dog assembly screw portions 1284, 1484, 1554, and the X, Y, Z axis feed nuts (1280, 1480, 1550) are When moving along the X, Y, Z axis screws (1140, 1240, 1430), by pressing the X, Y, Z axis limit switches (1161, 1261, 1451), the movement in the X, Y, Z axis directions is restricted. X, Y, Z axis screw foreign matter inflow prevention cover (1170, 1270, 1460) is inserted into the cover receiving groove (1282,1482,1552), and the X, Y, Z axis 1st and 2nd screw guide bearings (1131,1132,1231, 1232,1421,1422) and covers the X,Y,Z axis screws (1140,1240,1430), preventing the intrusion of processing chips falling into the X,Y,Z axis screws (1140,1240,1430). Since malfunction does not occur, productivity is improved.

In addition, the jog handle 1600 is known, and as shown in FIG. 1 in the present embodiment, it is attached to the front or side of the drilling operation box 1520 in a magnetic manner, but can be attached in a magnetic manner. On the back side, it can be attached and used anywhere according to the user's convenience, and it is connected to the control board at a predetermined position of the control box 1310, and the axes such as X/Y/Z can be moved by using the jog key 1610 on the control panel. It is configured to be able to move manually in the -direction.

Therefore, it is possible to set a reference point when machining a workpiece by the jog key 1610 of the jog handle 1600 and semi-automatically when machining a small amount.

In addition, as shown in FIGS. 16 to 23, an angle head 1700 capable of selectively assembling a hole cutting tool not shown in the hole processing rotation power supply means 1500 of the 4-axis drilling machine 1000 It can be assembled rotatably through the connector 1800.

Therefore, when the angle head 1700 is rotatable to the tool fixing chuck 1530 of the hole processing rotation power supply means 1500 via the connector 1800, it is installed at a right angle to the axial center of the tool fixing chuck 1530. It is possible to facilitate processing such as hole or milling on the inner circumferential surface of the hole formed coaxially with the tool fixing chuck 1530 by the hole processing tool.

Here, the angle head 1700 includes an annular fastening nut 1710 fastened to the tool fixing chuck 1530, a housing 1720 that is fitted and fixed to the axial center of the tool fixing chuck by the annular fastening nut, and the housing The connector groove is installed so as to be rotatable to the angle switching unit (1730) to be located at the axial center of the housing (1720) and the angle switching unit (1730) fixed with a bolt at the end of the connector, and to fit with the connector (1800). The first bevel gear 1740 and the first bevel gear 1740 supported by the bearing 1742 to receive the rotational force of the connector 1800 and the first bevel gear 1740 are meshed with the first bevel gear. A second bevel gear 1770 rotatably installed on the angle switching unit 1730 via the first and second bearing housings 1750 and 1760 to transmit the rotational force in the direction of 90 degrees, and the second bevel gear 1770 ) Is installed at the end of the hole or a tool coupling portion 1780 that is not shown to selectively assemble a tool for milling.

Therefore, the annular shape of the angle head 1700 so that the protrusion of the connector 1800 fits into the connector recess 1741 of the first bevel gear 1740 while the connector 1800 is fitted and fixed to the tool fixing chuck 1530. When assembling a tool for hole processing in the tool coupling part 1780 while fixing the housing 1720 and the angle switching bundle 1730 using the fastening nut 1710, the first ,Since only the 2 bearing housings 1750 and 1760, the first bevel gear 1740, and the second bevel gear 1770 need to be installed, the size and length of the angle conversion unit 1730 can be minimized, so that the tool fixing chuck Inserting into the inner circumferential surface of the workpiece disposed coaxially with the 1530 makes it easy to process the hole at any 360 degree of the hole, while the rotational force of the tool fixing chuck 1530 is controlled by the connector 1800 1 bevel gear (1740) and the second bevel gear (1770) and the tool coupling part (1780) is transmitted through, and the tool fixing chuck (1530) and coaxially disposed in the inner circumferential surface of the hole of the workpiece to a certain depth of hole or milling Processing becomes possible.

The first bevel gear 1740 and the second bevel gear 1770 are preferably helical bevel gears so that vibration or noise can be reduced and a large force can be transmitted.

The connector 1800, as shown in FIG. 17, is inserted into the tool fixing chuck 1530 on one side and selectively fixed to the gripping shaft portion 1810, and the other side extend integrally with the gripping shaft portion, the first It includes a rotational force transmission protrusion 1820 provided to protrude so as to fit into the connector recess 1741 of the bevel gear 1740.

Therefore, the rotational force of the tool fixing chuck 1530 is the first bevel gear 1740 and the second bevel gear 1770 and the tool coupling part of the angle head 1700 through the gripping shaft part 1810 and the rotational force transmission protrusion 1820. It will be delivered to (1780).

Embodiments of the present invention described above and shown in the drawings should not be construed as limiting the technical idea of the present invention. The protection scope of the present invention is limited only by the matters described in the claims, and those of ordinary skill in the technical field of the present invention can improve and change the technical idea of the present invention in various forms. Therefore, such improvements and changes will fall within the scope of the present invention if it is apparent by those of ordinary skill in the art.

1000: 4-axis drilling machine
1100: X-axis moving means 1170: X-axis screw foreign matter inflow prevention cover
1200: Y-axis moving means 1270: Y-axis screw foreign matter inflow prevention cover
1280: X-axis feed nut 1282: Cover mounting groove
1300: control means 1310: control box
1320: coordinate control unit 1400: Z-axis moving means
1460: Z-axis screw foreign matter inflow prevention cover 1480: Y-axis feed nut
1482: cover mounting groove 1500: hole processing rotation power supply means
1530: tool fixing chuck 1532: movement limit lever
1540: machining operation handle 1542: idle gear
1550: Z-axis feed nut 1600: Jog handle
1700: angle head 1800: connector

Claims (5)

An X-axis moving means, a Y-axis moving means installed so as to be guided above the X-axis moving means, a control means installed to be guided from an upper portion of the Y-axis moving means, and a Z-axis moving means provided in the control means; In the four-axis drilling machine that is installed in the Z-axis moving means and includes a hole processing rotation power supply means having a tool fixing chuck and a processing operation handle,
Closely installed on the inner side of the X, Y, Z axis first and second screw guide bearings (1131,1132,1231,1232,1421,1422) constituting the X,Y,Z axis moving means (1100,1200,1400) X, Y, Z axis screw foreign material provided to cover the X, Y, Z axis screws at the top of the X, Y, Z axis screws (1140, 1240, 1430) constituting the X, Y, Z axis moving means Inflow prevention cover (1170, 1270, 1460) and,
It is fastened to the X, Y, Z-axis screws (1140, 1240, 1430) and the Y-axis base 1210 of the Y-axis moving means 1200 and the control box 1310 of the control means 1300 and the hole processing rotation power supply means In addition to being fixed to the drilling operation box 1520 of 1500, a hexahedron is formed, but the screw screws 1281,1481,1551, which are formed through through to be fastened to the X, Y, and Z axis screws at the center of one side, respectively, and the above The upper surface of the screw screw to prevent foreign matter from entering from the top by covering the top of the X, Y, Z axis screws (1140, 1240, 1430) with the X, Y, Z axis screw foreign matter inflow prevention cover (1170, 1270, 1460). In the cover receiving groove (1282,1482,1552) cut in the form of wrapping the screw screw in a U shape, and a fastening means insertion groove formed to protrude the bolt screw by inserting a bolt from the side opposite to the surface where the cover receiving groove is formed ( 1283,1483,1553) and dog assembly screw portions 1284,1484,1554 formed to fasten the X, Y, Z axis limit switch dogs 1290, 1490, 1560 with a bolt on the opposite side where the cover receiving groove is formed. ) Equipped with X,Y,Z axis feed nuts (1280,1480,1550),
The tool fixing chuck 1530 is fitted while surrounding the tool fixing chuck and is detachably fixed to the tool fixing chuck, the axial center of the tool fixing chuck by the annular fastening nut 1710 fastened to the tool fixing chuck 1530 and the annular fastening nut A housing 1720 inserted and fixed to the housing 1720, an angle switching assembly 1730 fixed with a bowl at the end of the housing, and rotatably installed on the angle switching assembly so as to be located at the axial center of the housing. The first bevel gear 1740 is fitted with the connector 1800 to be fitted and fixed to receive the rotational force of the connector, and the first bevel gear is engaged in a direction of 90 degrees to reduce the rotational force of the first bevel gear in the direction of 90 degrees. A second bevel gear (1770) rotatably installed through the first and second bearing housings (1750, 1760) to the angle conversion unit so that it can be transmitted to the angle conversion unit, and a tool for processing by being installed at the end of the second bevel gear. Including an angle head (1700) with a tool coupling portion (1780) that can be selectively assembled,
The processing operation handle part 1540,
A first gear 1541 is installed inside the drilling operation box 1520 so that it is arranged upwardly with respect to the axial center of the tool fixing chuck 1530 and rotates coaxially with the processing operation handle part. ,
The tool fixing chuck 1530 is meshed with the first gear 1541 from the upper side and rotated, and is meshed with the rack gear 1531 installed at the rear of the tool fixing chuck to move the tool fixing chuck back and forth. A four-axis drilling machine, characterized in that it is provided with an idle gear (1542) installed so that the projection direction of the tool fixing chuck (1530) and the operating direction of the processing operation handle unit (1540) coincide. The method of claim 1,
A jog handle 1600 is further connected to the control board at a predetermined position of the control box constituting the control means so that the axes such as X/Y/Z can be manually moved in the +/- direction using the jog key on the operation panel. Four-axis drilling machine, characterized in that. delete delete delete

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