KR100845294B1 - Vertical type multi index drilling machine and drilling method using the machine - Google Patents

Abstract

Vertical-type multi index drilling machine and method are provided to minimize an installation space when a plurality of workpieces are processed and to adjust the angle of holes to be made. A vertical-type multi-indexing drilling machine includes a chucking part(110), an index(120), a drill part, and a controller(170). The chucking part chucks four workpieces. The index rotates and separates the four workpieces. The drill part moves back and forth perpendicularly to a rotational shaft of the four workpieces and drills the workpieces. The controller adjusts the number of holes of the workpieces and the angle of the workpieces. The chucking part includes four chuck tables(112) and four cylinders(116).

Description

VERTICAL MULTI INDEX DRILLING MACHINE AND DRILLING METHOD USING THE MACHINE

1 is a perspective view showing a configuration of an automatic index drilling machine according to an embodiment of the present invention.

2 is a plan view showing the configuration of the automatic index drilling machine of FIG.

3 is a front view showing the configuration of the automatic index drilling machine of FIG.

4 is a side view showing the configuration of the automatic index drilling machine of FIG.

5A and 5B are views for explaining a process of processing a hole in a workpiece.

6 is a plan view showing an example in which the horizontal rotating plate is installed in the chucking portion in the automatic index drilling machine configuration according to an embodiment of the present invention.

FIG. 7 is a view for explaining a process of processing the inclined hole in the workpiece in FIG. 6.

8 is a view for explaining that the insertion portion of the pressing jig is made to rotate.

9 is a view showing a bearing retainer which is a workpiece to be machined.

10 is a view showing a state in which two workpieces are fixed to the chucking part.

11A to 11G are views for explaining a process of processing a cutout in two workpieces fixed to the chucking part.

* Explanation of symbols for the main parts of the drawings

110: chucking part

120: index

130: drill part

140: the first moving plate

150: second moving plate

170: control unit

180: horizontal rotating plate

The present invention relates to a vertical multi-index drilling machine and a drilling method for automatically machining a plurality of holes and incisions on one side of a pipe-shaped workpiece of various sizes, more specifically, the size of a pipe-shaped workpiece Vertical multi-index drilling machine and drilling, which can be easily set within a certain range regardless of the length and length, and once set, the position is automatically controlled by the input data and can be used to make holes and cuts. It is about a method.

In general, when machining multiple holes and incisions on the side of a pipe-type workpiece, a machining center and an electronic indexer are required, and a skilled worker who can operate the machining center is required. However, purchasing expensive machining centers for drilling in small, small plants is not only practically difficult, but also expensive and practically impossible.

At present, the production plant is processing by hand in a drill (seat room), and the situation is very high. In particular, a pipe-like workpiece consists of various processes when machining (1st turning process-machining on NC lathe, 2nd hole-machining on table drill, 3rd finishing process-machining on NC lathe), As it is processed manually in the table drill, the first turning, the second hole processing, and the third finishing processing cannot be performed continuously, resulting in a low overall productivity of the plant.

In particular, a large number of drilling machines have to be installed and operated for mass production, but the cost of equipment purchases accordingly, many problems are pointed out in securing the installation space.

The present invention is to solve such a conventional problem, the object is to provide a vertical multi-index drilling machine and a drilling method that can minimize the installation space in processing a plurality of workpieces.

An object of the present invention is to provide a vertical multi-index drilling machine and a drilling method that can adjust the angle of the hole to be processed.

An object of the present invention is to provide a vertical multi-index drilling machine and a drilling method that can be easily chucked and processed in various sizes.

SUMMARY OF THE INVENTION An object of the present invention is to provide a vertical multi-index drilling machine and a drilling method capable of continuously machining a plurality of holes on a workpiece side at desired intervals.

According to a feature of the present invention for achieving the above object, the vertical multi-index drilling machine is installed to be stacked in a vertical direction, the chucking unit having a chuck table for chucking a plurality of workpieces at different heights; An index for simultaneously rotating workpieces chucked to the chuck tables; A drill unit installed to be stacked in a vertical direction and installed to be movable back and forth and left and right and having a plurality of drill units for drilling holes in the workpieces; And a control unit for controlling the index and the drill unit to numerically control the number and angle of holes for processing the workpieces.

According to the present embodiment, the vertical multi-index drilling machine may further include a rotatable horizontal rotating plate on which the chucking unit is installed.

According to the present embodiment, the vertical multi-index drilling machine further includes a rotatable horizontal rotating plate in which the drill portion is installed at the top, so that the workpieces can be drilled at various angles.

According to the present embodiment, the drill unit may include: a first moving plate on which the drill units are installed and movable in the front and rear directions; A first moving part for moving the first moving plate back and forth; A second moving plate provided with the moving plate and the first moving part and movable in the left and right directions; And a second moving part for moving the second moving plate.

According to the present embodiment, the chucking part may include cylinders installed to face the chuck tables and for tightly fixing the workpieces to the chuck tables.

According to this embodiment, the index is a stepping motor; Timing belts for transmitting the rotational force of the stepping motor to the chuck tables; And pulleys installed on each of the chuck tables and installed with the timing belts.

According to this embodiment, the drill unit; Timing belts for transmitting the rotational force of the drive motor to the drill units; And pulleys installed in each of the drill units and installed with the timing belts.

According to a feature of the present invention for achieving the above object, a method of drilling a workpiece having parts cut from a predetermined position to one end comprises the steps of: fixing two workpieces arranged in a line at both ends; And drilling a hole at a predetermined position of one workpiece with a drill unit, and then forming a cutout while moving horizontally to a predetermined position of the other workpiece.

According to the present embodiment, after rotating the two workpieces at a predetermined angle to process the cut portions at various angles, forming the cut portions at another position of the two workpieces using the drill unit. It includes more.

According to this embodiment, the drill unit has a first end machining blade and a second end machining blade having a diameter smaller than the first stage machining blade, and at a predetermined position of the two workpieces, The first stage machining blade is used, and the second stage machining blade of the drill unit is used when moving to process the cutout.

According to a feature of the present invention for achieving the above object, a method for drilling a workpiece having parts cut from a predetermined position to one end comprises the steps of: fixing two workpieces aligned in a line in the chucking unit at both ends; Preparing a drill unit having a first end working edge and a second end working blade having different diameters; Drilling a hole with a first drill blade at a predetermined position of any workpiece chucked to the chucking portion; Horizontally moving the drill unit to a predetermined position of another workpiece to form a cutout extending from the hole with the second drill blade portion positioned in the hole; Drilling a wider hole in the drill stage with the first stage cutting edge at a predetermined position of the other workpiece.

According to the present embodiment, after rotating the two workpieces at a predetermined angle to process the cut portions at various angles, forming the cut portions at another position of the two workpieces using the drill unit. It includes more.

The embodiments of the present invention may be modified in various forms, and the scope of the present invention should not be construed as being limited by the embodiments described below. These examples are provided to more fully explain the present invention to those skilled in the art. Accordingly, the shape of the elements in the drawings and the like are exaggerated to emphasize a clearer description.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to FIGS. 1 to 11G. In addition, in the drawings, the same reference numerals are denoted together for components that perform the same function.

1 is a perspective view showing a vertical multi-index drilling machine configuration according to an embodiment of the present invention, Figures 2 to 4 are a plan view, a front view and a side view showing the vertical multi-index drilling machine configuration of FIG.

Vertical multi-index drilling machine 100 of the present invention is a device capable of processing by dividing a plurality of holes in the four workpiece (a) at a desired angle. In addition, the vertical multi-index drilling machine 100 of the present invention is a device capable of continuously processing a number of holes by controlling the number, angle, depth and processing speed of the hole to be processed numerically.

As shown in Figures 1 to 4, the vertical multi-index drilling machine 100 of the present invention is a chucking unit 110 for chucking the four workpiece (a), four chucked to the chucking unit 110 Index 120 for rotationally dividing the workpieces (a), the front and back movable in the direction orthogonal to the rotation axis of the four workpieces and the drill portion 130 for drilling four workpieces and for machining the four workpieces In order to control the number and angle of the holes numerically, it has a control unit 170 for controlling the index and the drill portion.

First, the chucking unit 110 includes four chuck tables 112 and four cylinders 116. Four chuck tables 112 are installed to be stacked in a direction perpendicular to the fixing plate 111a installed perpendicular to the base 102. Fixing jig 114 for workpiece chucking is detachably installed on each of the chuck tables 112. The fixing jig 114 has a threaded portion 114a fitted into the screw groove 112a formed in the chuck table 112 and a fitting portion 114b fitted to fit the inner diameter of the workpiece a. Fixing jig 114 may be replaced according to the size of the workpiece to be processed. The workpieces (a) are fitted into the fixing jig 114 installed on each of the chuck tables 112 to be first fixed.

The four cylinders 116 are disposed at positions opposite to the chuck tables 112, and are installed to be stacked on another fixing plate 111b provided at the base 102. Each of the cylinders 116 is provided with a pressing jig 118 at the end of the rod 116a. As shown in FIG. 5B, the pressing jig 118 is for tightly fixing the workpiece a to the fixing jig 114. The pressing jig 118 is coupled to the rod 116a of the cylinder so that the workpiece a is tightly fixed to the chuck table 112 and moved forward by the operation of the cylinder 116 to press and fix the workpiece. The pressing jig 118 has a conical insert 118a so that it does not need to be replaced according to the size of the workpiece, unlike the fixing jig 114. As shown in Figure 8, the insertion portion 118a of the pressing jig 118 is partially inserted into the inner diameter of the workpiece (a). The pressing jig is fixed to the rod 116a of the cylinder, but the inserting portion 118a is provided with a bearing 118c therein so that the insert 118a can be rotated together when the workpiece is rotated.

The chucking unit 110 may fix the four workpieces a at different heights by the above-described configurations.

Meanwhile, the chuck tables 112 may be connected to the index 120 and rotated by a desired angle. The index 120 includes a stepping motor 122 and timing belts 124 and pulleys 126 for transmitting the rotational force of the stepping motor 122 to the respective chuck tables 112. The timing belts 124 are connected to the pulleys 126 installed on the rotating shaft 122a of the stepping motor 122 and the rotating shaft 112b of the chuck table to transmit the rotating force of the stepping motor 122.

The drill unit 130 is disposed on one side of the chucking unit 110, and includes first, second, third and fourth drill units 132a, 132b, 132c, and 132d and the drill units 132a, 132b, 132c, and 132d. It includes a drill drive unit 134 for driving). The first, second, third, and fourth drill units 132a, 132b, 132c, and 132d are installed on the first moving plate 140 to be positioned at a height corresponding to the four workpieces a installed in the chucking unit 110. do. The drill drive unit 134 includes one drive motor 134a and timing belts 134b and pulleys 134c for transmitting the rotational force of the drive motor 134a to the respective drill units 132a, 132b, 132c, and 132d. ) The timing belts 134b are connected to pulleys 134c installed on the rotating shaft (not shown) of the driving motor 134a and the rotating shafts (not shown) of the drill units 132a, 132b, 132c, and 132d. 134a) to transmit the rotational force. On the other hand, the first moving plate 140 is moved in the front-rear direction by the first moving part 142 to punch a hole in the workpiece (a). The first moving part 142 of the first motor 144, the lead screw 146 connected to the first motor 144, and the first moving plate 140 to move the first moving plate 140. It includes a first guide rail 148 to guide the movement. On the other hand, the drill unit 130 includes a first moving plate 140 and the first moving plate 142, the second moving plate 150 is movable in the horizontal direction. The second moving plate 150 is moved by the second moving part 152, and the second moving part 152 moves the second motor 154 and the second to move the second moving plate 150. The lead screw 156 connected to the motor 154 and the second guide rail 158 for guiding the movement of the second moving plate 150 is included.

The controller 170 may include a first moving unit 142 and a second moving unit 152 for controlling the position of the stepping motor 122, the cylinders 116, the drill driver 134, and the drill units of the index 120. By controlling the motors 144 and 154, the number, position, angle, etc. of the holes for processing the workpiece (a) can be controlled numerically.

For reference, although not shown in the drawings, the first and second moving plates 140 and 150 may be respectively provided with an origin return switch (also called a limit switch) for switching whether they are located at the horizontal and vertical standby positions (home positions). In this way, with the home position return switch, it is necessary to always check whether the drill units are located at the home position, accurate numerical control in the control unit 170 is possible.

As described above, the hole processing process in the vertical multi-index drilling machine according to the present invention is as follows.

First, desired data is input to the controller 170. Numerical values such as the number, location, and angle of holes may be input to the controller 170. Then, the workpieces (a) to be processed are fixed to the chuck tables of the chucking unit 110, respectively. When the start switch (not shown) is pressed while the inner diameter of the workpiece a is temporarily fixed to the fitting portion 114b of the fixing jig 114 fixed to the chuck table 112, the cylinders 116 are moved. The pressing jig 118 is moved to press one side of the work piece (a) in the direction of the chuck table, and the work piece is tightly fixed to the chuck table 112 (see FIG. 5A).

When the fixing of the workpiece is completed, the second motor 154 of the second moving unit 152 is operated to position the drill units 132a, 132b, 132c, and 132d at a desired machining position of the workpiece (a). The moving plate 150 is moved in the left and right directions. When the position setting is completed, the drive motor is operated by the controller, and the power of the drive motor is transmitted to the drill units 132a, 132b, 132c, and 132d through the pulleys and the timing belts. The drill units 132a, 132b, 132c, and 132d operated as described above move forward by driving the first motor 144 of the first moving unit 142, and have a desired numerical value at an appropriate cutting speed for each of the workpieces a. The hole is moved so as to process the hole (see FIG. 5B). Further, the drill units 132a, 132b, 132c, and 132d move backward after a predetermined distance when one hole is finished. In the meantime, the index 120 corresponds to the angle input from the controller 170, and the chuck table 112 is used. When the workpieces are rotated by rotating them, the drill units 132a, 132b, 132c, and 132d move forward again to process holes at another angle (see FIG. 3B). When all the desired number of holes are processed in this way, the drill units 132a, 132b, 132c, and 132d are retracted to stand by in the initial position (standby position).

All such operations are precisely controlled by the numerical value input to the control unit 170, thereby facilitating the processing control of the workpiece. For example, the angle division of the index 120 can be controlled to 0.5 degree, and the depth of the drill hole can be controlled to 0.0125 mm. In addition, the rotational speed of the drill unit can be adjusted according to the material of the workpiece, the size of the processing hole, and the type of tool (drill), and the cutting speed can also be controlled as a numerical value.

6 is a plan view showing an example in which a horizontal rotary plate is installed in the chucking portion in the vertical multi-index drilling machine configuration according to an embodiment of the present invention. FIG. 7 is a diagram for describing a process of processing a slanted hole in a workpiece in FIG. 6.

Referring to the drawings, the index drilling machine 100a according to the present embodiment rotates the chucking unit 110 for chucking the four workpieces a and the four workpieces chucked to the chucking unit 110. The index 120 for drilling, the drill unit 130 for drilling the four workpieces in the direction orthogonal to the rotation axis of the four workpieces, and the number and angle of the holes for the four workpieces. In order to control by, it includes a control unit 170 for controlling the index 120 and the drill unit 130, the description thereof will be omitted in the present embodiment because it has been described in detail above.

However, in the present embodiment, a horizontal rotating plate 180 for rotating the chucking unit 110 is installed on the base 102. The chucking unit 110 is installed on the horizontal rotating plate 180. The horizontal rotating plate 180 is rotatably installed on the base 102 about the rotating shaft 182. As described above, the index drilling machine 100a of the present invention can adjust the angle between the workpiece a and the drill unit by rotating the horizontal rotating plate 180 about the rotation axis 182, so that the worker is able to adjust the workpiece (a). It can be processed at an angle to the hole of the desired angle, the figure is shown in FIG. For example, the horizontal rotating plate 180 may be fixed by a bolt (not shown) or the like after being manually adjusted by an operator. Alternatively, by installing a separate stepping motor connected to the rotating shaft of the horizontal rotating plate, the control unit 170 may precisely adjust the rotation angle.

9 shows a bearing retainer with four cutouts. 10 is a view showing a state in which two bearing retainers (workpieces) are fixed to the chucking part before processing. 11A to 11G are views showing step by step a process for machining cutouts in two bearing retainers fixed to the chucking portion.

As shown in FIG. 9, the bearing retainer b consists of a cylindrical body in which a plurality of cutouts c are formed. The cutout c of the bearing retainer b forms a hole c1 at a predetermined position of the body, and then forms a slot c2 extending from the hole c1 to one end of the body. After the holes were drilled, the operator manually machined the slots using a cutter.

However, the present invention not only can automatically process the cutouts c of the bearing retainer b, but also has the special effect of machining two bearing retainers b at a time.

Referring to the process of cutting the incision of the bearing retainer in the vertical multi-index drilling machine according to the present invention. Here, a drill unit 132a having a two-stage end mill structure having a first stage machining blade 139a and a second stage machining blade 139b having a smaller diameter than the first stage machining blade 139a is used.

First, the bearing retainers (b1, b2), which are the workpieces to be processed, are aligned in a line, and then tightly fixed to the chuck table 112 of the chucking unit 110 by using the pressing jig 118 of the cylinder 116. (See Figure 10).

When the fixing of the two bearing retainers b1 and b2 is completed, the second motor 154 of the second moving part 152 is operated so that the drill unit 132a is positioned at the preset position of the first bearing retainer b1. By moving the second moving plate 150 in the left and right directions. When the position setting is completed, the driving motor 134a is operated by the controller 170, and the power of the driving motor 134a is transmitted to the drill unit 132a through the pulleys 134c and the timing belt 134b. . The drill unit 132a operated in this way is moved forward by driving the first motor 144 of the first moving unit 142, and the first stage machining blade 139a at the preset position of the first bearing retainer b1. Drill a hole c1 (FIG. 11A). Then, after moving back a predetermined distance so that the second cutting edge 139b is located in the hole c1 (FIG. 11B), the second moving part 152 to form a cutout part c2 extending from the hole c1. ) Operates the second motor 154 to move the drill unit 132a to a predetermined position of the second bearing retainer b2 (FIG. 11C). As shown in FIG. 11D, a wider hole c1 is drilled into the first end cutting edge 139a of the drill unit 132a at the preset position of the second bearing retainer b2. The drill unit 132a is reversed backwards by a predetermined distance after machining one cutout portion (c) in two bearing retainers (11e), and the index 120 by an angle (90 degrees) input by the controller 170 therebetween. ) Rotates the chuck tables 112 so that the two bearing retainers b1 and b2 are rotated (FIG. 11F), the drill unit 132a is advanced again and this time to the preset position of the second bearing retainer b2. The hole c1 is drilled with the first end working blade 139a (Fig. 11G). The procedure described above is then repeated to machine a new incision in the two bearing retainers.

As in the present embodiment, since the two bearing retainers b1 and b2 are connected in a line to face each other, the cutting portion c can be machined. If one bearing retainer is fixed to the chucking part 110, it is impossible to process the cutout portion leading to one end of the bearing retainer. The reason is that both ends of the bearing retainer are fixed to the chucking part 110, so that the drill unit 132a collides with the chucking part 110 when the drill unit 132a moves to one end of the bearing retainer. Problems arise. However, as in the present invention, if two bearing retainers are installed to face each other, even if the drill unit 132a moves to one end of the bearing retainer to process the cutout portion, it will not collide with the chucking unit 110, but also once. The cutting part can be machined into two bearing retainers in the movement, thereby increasing the productivity.

In the above, the configuration and operation of the vertical multi-index drilling machine according to the present invention has been shown in accordance with the above description and drawings, which are just described for example, and various changes and modifications within the scope without departing from the technical spirit of the present invention. Of course this is possible.

The present invention has a special effect of processing multiple workpieces simultaneously.

In addition, the present invention can minimize the installation space in processing a plurality of workpieces.

In addition, the present invention can adjust the angle of the hole to be processed.

In addition, the present invention can be easily chucked and processed in various sizes.

In addition, the present invention can continuously process a plurality of holes and cutouts on the side of the workpiece at a desired interval.

Claims (13)

delete In a vertical multi index drilling machine for processing a plurality of workpieces: A chucking unit installed to be stacked in a vertical direction and having chuck tables for chucking a plurality of workpieces at different heights; An index for simultaneously rotating workpieces chucked to the chuck tables; A drill unit installed to be stacked in a vertical direction and installed to be movable back and forth and left and right and having a plurality of drill units for drilling holes in the workpieces; A control unit for controlling the index and the drill unit to numerically control the number and angle of holes for processing the workpieces; And And a rotatable horizontal rotating plate having the chucking portion installed thereon, the vertical multi-index drilling machine characterized in that it can process holes in the workpiece at various angles. In a vertical multi index drilling machine for processing a plurality of workpieces: A chucking unit installed to be stacked in a vertical direction and having chuck tables for chucking a plurality of workpieces at different heights; An index for simultaneously rotating workpieces chucked to the chuck tables; A drill unit installed to be stacked in a vertical direction and installed to be movable back and forth and left and right and having a plurality of drill units for drilling holes in the workpieces; A control unit for controlling the index and the drill unit to numerically control the number and angle of holes for processing the workpieces; And And a rotatable horizontal rotating plate having the drill unit installed thereon, the vertical multi-index drilling machine characterized in that it can process holes in the workpiece at various angles. The method according to claim 2 or 3, The drill part A first moving plate on which the drill units are installed and movable in the front and rear directions; A first moving part for moving the first moving plate back and forth; A second moving plate provided with the moving plate and the first moving part and movable in the left and right directions; And And a second moving part for moving the second moving plate. The method according to claim 2 or 3, The chucking unit And vertically mounted cylinders opposed to the chuck tables and for tightly fixing the workpieces to the respective chuck tables. The method according to claim 2 or 3, The index is Stepping motor; Timing belts for transmitting the rotational force of the stepping motor to the chuck tables; And pulleys installed on each of the chuck tables and installed with the timing belts, wherein the plurality of chuck tables are rotated using a single stepping motor. The method according to claim 2 or 3, The drill part Drive motors; Timing belts for transmitting the rotational force of the drive motor to the drill units; And a plurality of pulleys installed in each of the drill units and installed with the timing belts, so that a plurality of drill units are rotated using one driving motor. In a vertical multi index drilling machine for processing a plurality of workpieces: A chucking unit installed to be stacked in a vertical direction and having chuck tables for chucking a plurality of workpieces at different heights; An index for simultaneously rotating workpieces chucked to the chuck tables; A drill unit installed to be stacked in a vertical direction and installed to be movable back and forth and left and right and having a plurality of drill units for drilling holes in the workpieces; And A control unit for controlling the index and the drill unit to numerically control the number and angle of holes for processing the workpieces; And said workpiece is a bearing retainer. In a method of drilling a part cut from a predetermined position to one end: In a method of drilling a workpiece having cut portions from a predetermined position to one end: Fixing two workpieces aligned in a row at both ends; And drilling a hole at a predetermined position of one workpiece with a drill unit and then forming a cutout while moving horizontally to a predetermined position of the other workpiece. The method of claim 9, And rotating the two workpieces at an angle so as to process the cut portions at various angles, and then using the drill unit to form the cut portions at another position of the two workpieces. Method of drilling workpieces. The method of claim 9 or 10, The drill unit has a first cutting edge and a second cutting edge having a diameter smaller than the first cutting edge, In the predetermined positions of the two workpieces, the first stage machining blade of the drill unit is used, and the second stage machining blade of the drill unit is used when moving to process the cutout. Way. In a method of drilling a workpiece having cut portions from a predetermined position to one end: Fixing two workpieces arranged in a line in the chucking unit at both ends; Preparing a drill unit having a first end working edge and a second end working blade having different diameters; Drilling a hole with a first cutting edge at a predetermined position of any one workpiece chucked to the chucking portion; Horizontally moving the drill unit to a predetermined position of the other workpiece to form a cutout extending from the hole with the second stage cutting edge positioned in the hole; And drilling a wider hole in the drill unit with the first stage cutting edge at a predetermined position of the other workpiece. The method of claim 12, And rotating the two workpieces at an angle so as to process the cut portions at various angles, and then using the drill unit to form the cut portions at another position of the two workpieces. Method of drilling workpieces.

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