KR20020024357A - Upright drilling machine - Google Patents

Abstract

PURPOSE: An upright drilling machine is provided to rapidly and precisely match a center point of a hole of an object to be processed with a center point of a perforating member by resetting the perforating member and a conveying table to an initial position when the perforation work is finished. CONSTITUTION: A vertical conveying rail(3) having a rectangular shape is fixed to a front of an upper body(2). A drill body(5) equipped with a drill blade(4) is movably coupled to the vertical conveying rail(3). The drill body(5) is connected to a gear section(10) through a screw(6) and is moved up and down by a longitudinal conveying handle(12) which is connected to the gear section(10) through a rotating shaft(11). A fixing die(22) having a guide rail(21) at an upper portion thereof is installed at the lower body(20). A conveying table(25) including an index(23) and a lower chuck(24) is movably coupled to an upper surface of the fixing die(22).

Description

Upright Drilling Machine {UPRIGHT DRILLING MACHINE}

The present invention relates to an upright drilling machine, and more particularly, to easily and quickly and accurately set the center point of a drill blade and a workpiece when drilling a hole using a drill blade. An upright drilling machine that can improve productivity.

In general, a drilling machine and a milling machine are used as machine tools for drilling holes, and an electronic drilling machine uses a drill blade to drill holes in a workpiece. As a machine, a drill blade bit is rotated by a driving motor driven by power (power) to drill a desired hole in a workpiece. The latter milling machine uses an end mill to cut a workpiece. For cutting or machining holes and grooves.

In this type of drilling machine and milling machine, the drill and end mill, which are rotated by the drive motor in the form of an upright (upright, upright), are moved in the up and down direction, and in the drilling machine, a workpiece for drilling a hole is placed. The fixed transfer table (or drill body with drill blades) is rotated at an angle of about 360 ° in both directions starting from the fixed position, and in the milling machine, the transfer table is conveyed in left, right and forward and backward directions. Has

Therefore, the drilling machine sets the machining position of the workpiece to be processed by rotating and moving the feed table to which the workpiece to be processed is fixed in both directions, and then drills the hole by lowering the drill blade rotated by the driving motor. The milling machine sets the machining position of the workpiece to be processed by moving the transfer table to which the workpiece to be processed is fixed in the left, right, and forward and backward directions, and then drills the hole by lowering the rotating end mill. Done.

However, in the hole drilling operation using the drilling machine or the milling machine, it is difficult and inconvenient to set the position of the workpiece, that is, to coincide with the center point of the hole to be drilled and the center point of the drill and end mill. It is difficult to set the processing origin (the processing origin which is the basis for the exact positioning of the workpiece) during the preparation work for the initial machining origin of the workpiece and the drilling of the next workpiece, which requires high skill and a lot of working time. As a result, workers are severely stressed and stressed, which leads to high defect rate and poor workability, which leads to low productivity. In addition, complicated structure makes handling, maintenance, and management difficult, inefficient, and requires more manpower and work time. Because of this, a non-economic problem occurred.

The present invention is to solve the conventional problems as described above, the purpose of the punching holes in the workpiece, the drilling member (drill and end mill) for drilling the hole in the workpiece to make a vertical reciprocating motion and the workpiece is fixed The transfer table is moved left and right, but when the drilling operation is completed by the origin storage device, it is always set to the initial machining origin so that the initial machining origin and the hole center point of the workpiece to be drilled and the center point of the punched member can be quickly and accurately. It is to provide a new type of upright drilling machine that can be set up simply and easily.

In order to achieve the above object, in the present invention, in drilling a hole in a workpiece, a vertical vertical transfer rail having a fixed height is fixed to the front surface of the upper body, and the drill body equipped with the drill blade moves upward and downward directions. The drill body is connected to the gear part by a screw and reciprocated upward and downward by a longitudinal transfer handle by a rotating shaft, and a fixed die having a guide rail formed on the upper body is installed on the upper surface. The transfer table combined with the index and the lower chuck is coupled to move in the left and right directions, and the transfer table has a characteristic of being transferred in the left and right directions by a lateral transfer handle connected by a screw shaft.

In the present invention as described above, the screw connected to the drill body is a parallel movement of the manual movement by the longitudinal transfer handle and the automatic movement by the drive motor by the clutch of the gear unit, the index table and the lower chuck combined transfer table is the origin The memory device has a feature that the initial machining origin is always set.

1 is a front schematic view showing a hole processing machine according to the present invention;

2 is a schematic side view showing a hole processing machine according to the present invention;

<Explanation of symbols for main parts of the drawings>

1: Upright Drilling Machine 2: Upper Body

3: vertical feed rail 4: drill

5: Drill body 6: Screw

10: Gear part 11: Coaxial

12: Longitudinal transfer handle 20: Lower body

21: guide rail 22: fixed die

23: Index 24: lower chuck

25: feed table 26: transverse feed handle

30: control unit 31: origin memory device

M1, M2: Drive motor

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

1 is a side schematic view showing an upright drilling machine according to the present invention, in which the upright drilling machine 1 has a rectangular vertical feed rail 3 having a fixed height on the front of the upper body 2, and a drill blade ( 4) the drill body 5 is mounted is coupled to move in the up and down direction, the drill body 5 is connected to the gear portion 10 by a screw 6 and the gear portion 10 and the rotating shaft ( 11) is reciprocated in the up and down direction by the longitudinal transfer handle 12 connected to, the lower body 20 is provided with a fixed die 22 having a guide rail 21 formed on the upper surface, fixed die 22 ) The upper surface represents that the transfer table 25 to which the index 23 and the lower chuck 24 are coupled is moved to move left and right.

At this time, the screw 6 is connected to the drill body 5 by the clutch 13 of the gear unit 10 to the manual movement using the longitudinal transfer handle 12 and the automatic movement by the drive motor (M1). In parallel, the transfer table 25 combined with the index 23 and the lower chuck 24 is transferred to the left and right directions by a transverse transfer handle 26 connected by a screw shaft and electrically connected to the control unit 30. ), The initial machining origin is always set by the origin storage device 31.

2 is a front schematic view showing an upright drilling machine according to the present invention, in which the drill body 5 is along the vertical transfer rail 3 fixed to the upper body 2, and the longitudinal transfer handle 12 and the gear portion ( Rotation of the screw 6 by 10) causes the hole to be drilled in the workpiece fixed on the lower chuck 24 of the transfer table 25, and the transfer table 25 moves in the transverse direction. It is shown to be moved in the left and right direction along the guide rail 21 formed on the fixed die 22 by the transfer handle 26.

At this time, a guide groove 27 corresponding to the guide rail 21 formed on the upper surface of the fixed die 22 is formed on the bottom of the transfer table 25, and a scale display 28 for initial setting the origin is formed at the front center. In addition, the scale display unit 28 indicates that the origin memory device 31 for marking and confirming the machining position is installed in the controller 30 so as to recognize a signal generated by the electrical coupling.

In the drawings, reference numeral 7 denotes a vertical transfer body, 8 an upper chuck, 9 a long hole, 29 a coolant storage tank, 32 an automatic transfer converter, 34 an ear transmission unit, and M2 a driving motor.

Referring to the use state of the present invention as follows.

As shown in Figure 1 and 2, the vertical transfer rail (3) is fixed to the front of the upper body 2, the drill body 5 is coupled, the drill body 5 to reciprocate in the up and down direction The rear end of the vertical transfer body (7) is fixed and connected with the screw (6), the screw (6) is connected to interlock with the gear unit 10 in the lower body 20, the lower body 20 front In the longitudinal transfer handle 12 is connected to the gear unit 10 by the rotation shaft 11 and the fixing die 22 is formed with a guide rail 21 is fixed on the upper surface, the guide to the fixed die 22 A guide groove 27 corresponding to the rail 21 is formed, and a transfer table 25 having an index 23 and a lower chuck 24 coupled to an upper surface thereof is coupled to the transfer table 25. The scale display unit 28 and the origin storage device 31, which can display an electrical signal for setting the initial machining origin, are electrically connected to the front center of the Punch a hole in the workpiece using the upright drilling machine (1) equipped with a drive motor (M1) connected to the fisherman (10) and an automatic transfer converter (32) for driving the clutch (13) for gear conversion. To do this, first, the workpiece to be drilled is mounted on the lower chuck 24 to be fixed, and the drill blade 4 having a diameter D of the size to be drilled is mounted on the upper chuck 8 of the drill body 5. do.

In this state, when power is supplied from the power supply unit (not shown) to the driving motor M2, the driving motor M2 is driven to drill at a constant rotation rate by the gear transmission 34. (4) is rotated, and when the longitudinal feed handle 12 connected to the gear portion 10 by the rotating shaft 11 in one direction, as the screw 6 connected to engage with it rotates, the vertical The drill body (5) is lowered along the screw (6) rotated by the pine body (7) to approach the upper part of the workpiece fixed to the lower chuck (24), the center point of the hole to be drilled and the drill bit lowered If the center points of (4) coincide on the same center line, the drill blade 4 is continuously lowered by turning the longitudinal feed handle 12 so that the hole is drilled in the workpiece by the drill blade 4 rotated. will be.

However, when the center point of the hole to be drilled in the workpiece and the center point of the drill blade 4 do not coincide with each other, the feed table 25 is rotated in one direction by connecting the feed table 25 and the screw shaft to the feed table 25. 1) by moving left and right to coincide with the center point of the drill blade 4, and then turning the longitudinal transfer handle 12 in one direction to drill a hole as described above. In this case, the transfer table 25 The moving distance in the left and right directions is accurately displayed by the origin storage device 31 of the control unit 30 electrically connected to the scale display unit 28 installed on the front side.

The above process may be repeated continuously and repeatedly, and the hole may be drilled at a desired position of the workpiece. When the hole drilling operation is completed, the workpiece may be removed from the lower chuck 24 and the other workpiece may be fixed to drill the desired hole. As, at this time, the early machining origin according to the workpiece replacement is always set by the origin storage device 31, so that the hole drilling operation can be performed immediately when the workpiece is fixed without the need for a separate machining origin.

In addition, when the hole drilling operation of the workpiece is completed or the rapid movement of the drill body 5 in the upward direction is operated, the clutch 13 of the gear unit 10 is operated by operating the automatic feed conversion device 32 of the control unit 30. When the gear is connected to the driving motor M1 by converting the screw, the screw 6 connected to the gear 10 by the driving of the driving motor M1 rotates rapidly (the opposite direction of rotation when the drill body descends). The drill body 5 is quickly moved upward.

In addition, the coolant tank 29 is installed in the lower body 20, and the upper body 2 and the lower body 20 are centered at the upper chuck 8 and the transfer table 25 of the drill body 5 when initially fixed. The long hole 9 is formed in the upper body 2 so that the upper body 2 can be moved a predetermined distance in the front and rear directions so as to match the center point of the lower chuck 24 of the upper body. Weight body W is connected by wire C to prevent shaking during downward movement.

The gear part 10 used in the present invention is a conventional gear device (eg bevel gear), which is equipped with a clutch 13 for gear conversion, and is embedded in the index 23 and the drill body 5. Since the gear transmission unit 34 is a well-known configuration, a detailed description thereof is not mentioned separately, and electrical connection of the origin storage device 31 and the automatic transfer converter 32 of the control unit 30 is a conventional electrical signal transmission method. to be.

On the other hand, if you want to drill a hole in the workpiece of the size that can not be fixed by the lower chuck 24 used in the upright drilling machine according to the present invention, a separate auxiliary table (not shown in the drawings, it is conventional at the time of drilling work It can be used also).

In this way, to move the drill body in the vertical direction in the vertical direction, to move the transfer table combined with the index and the lower chuck to the left and right directions, to maintain the initial machining origin of the drill blade and the workpiece at the same time and to drill at the same time As the center point setting of the hole to be made is easy, quick and accurate, the time required for the preparation for hole drilling can be shortened as much as possible to improve the workability and productivity. It is economical because it is easy and cost can be reduced as much as possible.

Claims (2)

In drilling holes in the workpiece using a drill blade, The vertical vertical transfer rail (3) having a fixed height in front of the upper body (2) is fixed and the drill body (5) equipped with the drill blade (4) is coupled to move in the up and down direction, the drill body (5) ) Is reciprocated in the up and down direction by the longitudinal transfer handle 12 connected to the gear portion 10 by the screw 6 and connected to the gear portion 10 and the pivot shaft 11, and the lower body ( 20, a fixed die 22 having a guide rail 21 formed on the upper surface thereof is installed, and a transfer table 25 in which the index 23 and the lower chuck 24 are coupled to the upper surface of the fixed die 22 has left and right sides. Upright drilling machine, characterized in that coupled to move in the direction. The screw 6 connected to the drill body 5 is connected to the manual movement and drive motor M1 by the longitudinal transfer handle 12 by the clutch 13 of the gear part 10. Automatic movement by the parallel movement, the transfer table 25, the index 23 and the lower chuck 24 is coupled to the upright drilling machine, characterized in that the initial processing point is always set by the origin storage device 31 at all times. .