KR102019464B1 - A tool for machining tap - Google Patents

Abstract

The present invention relates to a tap machining tool. The tap machining tool includes: a rotary shaft (110) removably combined with a rotary body (220) of a machining tool (200) for boring to be rotated around the same place; a key (120) protruding from the rotary shaft (110); a rotor (130) including a pair of key holes (132) to be combined with the key (120), rotated in integration with the rotary shaft (110) as the key (120) is combined with the key holes (132), and mounted on the rotary shaft to be able to be moved forward and backwards in a longitudinal direction; first and second bearings (141, 142) combined with the rear and front sides of the rotor (130), respectively; an outer (150) combined with the first and second bearings (141, 142) without contact with the rotor (130), and able to be moved forward and backwards along with the rotor (130); a tool chuck (170) inserted into the front side of the rotor (130); an adaptor (180) combined with the front end of the rotor (130) and tightening the tool chuck (170) into which a tap tool (190) is inserted; and the tap tool (190) inserted into an insertion hole (170a) of the tool chuck (170) to form a female screw. Therefore, since the tap machining tool can be compatibly installed on a drill of an existing drilling machine or milling machine for boring a hole (hole to be processed), costs for tap machining can be saved.

Description

Tool for tapping {A TOOL FOR MACHINING TAP}

The present invention relates to tapping, and in particular, to be installed in a drill of a milling machine or a drilling machine that drills an existing hole (working hole), and also installed in the drill of the conventional milling machine or a drilling machine The present invention relates to a tool for tapping, which is suitable for allowing a worker to grip and manually approach the hole to be processed even while the tapping tool is being rotated.

Generally, tapping devices or tapping machines for processing taps are known.

The method of processing the conventional tab is briefly described. Conventionally, a hole for processing a tab is first formed using a drilling machine or a milling machine, and a tapping is performed on a preformed hole using a tapping machine, which is a separate machine tool.

Therefore, in the related art, two machine tools, that is, drilling machines or drilling machines, which are punching machines, and milling machines and tapping machines for forming tabs had to be provided separately, thereby increasing the cost of purchasing the machine and having a large working space occupied by the two machine tools. There was a problem.

In addition, since all the conventional tapping machine is an expensive product, it took a great cost to purchase it.

Document 1: Registered Utility Model No. 20-0400894 (Notice date: November 9, 2005) Document 2: Registered Patent No. 0613410 (Notice: 2006.08.22.)

The present invention was created to solve the problems of the prior art as described above, the object of the tapping tool according to the present invention,

First, after drilling a machined hole by using a machine tool (milling machine or a drilling machine) equipped with a drill for drilling a hole, the tool of the present invention is equipped with a tapping tool of the present invention to be compatible with the drill of the machine tool. By allowing taps to be machined, two machine tools can be used to drill holes and machine taps with just one machine tool (milling or drilling machine),

Secondly, it is possible to drill a machine tool (milling machine or drilling machine) and taps by allowing one machine tool (milling machine or drilling machine) to drill holes and to perform two machine tools that can process tabs. Since it is not necessary to prepare or purchase two machines of a machine tool (tapping machine) at the same time, it is possible to reduce the machine equipment cost of tapping to 1/2 or less, and thus to reduce the cost of tapping,

Third, since the tapping machine does not have to be separately required, the occupational space occupied by the machine tool is reduced, so that tapping is possible even in a narrow workplace.

Fourth, even when the tapping tool of the present invention is coupled to the rotating body of the milling or drilling machine by the configuration of the outer which does forward and backward movement with the rotor, even if the rotor rotates, It provides access to the hole and thus makes it easy to use existing milling or drilling machines for tapping.

Fifth, by adopting the configuration of the elastic member that pushes the rotor back, the rotor and the tap tool can be quickly retracted the moment the tap tool is pulled out of the hole, thereby preventing damage to the workpiece around the inlet of the hole to be machined. To avoid

Sixth, the present invention provides a tapping tool suitable for enabling a tapping tool to go into a hole to be machined to a depth greater than a predetermined depth, thereby preventing mis-processing of tapping in advance.

The tapping tool of the present invention for achieving the above object is a machine tool for drilling holes Rotating shaft which is detachably fastened to the rotating body to rotate in place, a key protruding radially outward on the front side of the rotating shaft, and a through hole in the longitudinal direction to be extrapolated to the rotating shaft, the key is A pair of key holes are formed on the outer circumferential surface of the outer circumferential surface so as to face the key, and the key is key-coupled to the key hole so that the key can be integrally rotated according to the rotation of the rotation shaft, and guide of the key inserted into the key hole. A rotor arranged on the rotary shaft to allow forward and retraction in the longitudinal direction while receiving a first bearing, a first bearing fastened to the rear side of the rotor, a second bearing fastened to the front side of the rotor, and the rotor It is coupled to the first bearing and the second bearing so as not to be in contact with the rotor in order not to be affected when the rotation of the, An outer that can move forward and backward with the existing rotor, and an insertion hole inserted into the front side of the rotor, and an insertion hole for inserting the tab tool in the center along the longitudinal direction, so that the tab tool is firmly secured. A tool chuck that is fastened to the tool chuck and a male screw formed at the front end of the rotor, and an adapter for tightening the tool chuck in which the tab tool is inserted so that the tab tool is firmly fastened to the tool chuck; It is characterized in that it comprises a tab tool is inserted into the insertion hole to form a female thread.

The tapping tool of the present invention, when the rotary shaft rotates, when the rotor rotates when the operator grips the outer to advance to the pre-formed machining hole of the workpiece, the tap tool along the machining hole It is characterized in that the tab can be formed on the inner peripheral surface.

The tool for processing of the present invention having the above configuration has the following effects.

First, after drilling a machined hole by using a machine tool (milling machine or a drilling machine) equipped with a drill for drilling a hole, the tool of the present invention is equipped with a tapping tool of the present invention to be compatible with the drill of the machine tool. By allowing the tap to be machined, there is an effect that a single machine tool (milling machine or drilling machine) can be used to drill holes and to process taps.

Second, two machine tools can be used to drill holes or machine taps with only one machine tool (milling machine or drilling machine). Since it is not necessary to prepare or purchase two machines of the machine (tapping machine) at the same time, the machine equipment cost of tapping can be reduced to 1/2 or less, and as a result, the tapping operation cost can be reduced.

Third, since there is no need for a separate tapping machine, the occupation space occupied by the machine tool is reduced, so that tapping is possible even in a narrow workshop.

Fourth, even when the tapping tool of the present invention is coupled to the rotating body of the milling or drilling machine by the configuration of the outer which does forward and backward movement with the rotor, even if the rotor rotates, It can be accessed by a hole, and as a result, it is possible to conveniently use an existing milling or drilling machine for tapping without using a separate tapping machine.

Fourth, by adopting the configuration of the elastic member that pushes the rotor back, the rotor and the tap tool can be quickly retracted the moment the tap tool is pulled out of the hole, and as a result, the workpiece around the inlet of the hole is damaged. There is no effect to add.

Fifth, the tap tool enters the hole to be processed more than the set depth, there is an effect that can be prevented in advance to process the tap processing.

1 is an external view of a tapping tool 100 according to an embodiment of the present invention.
2 is a cross-sectional view of an essential part of the tapping tool 100 according to an embodiment of the present invention.
3 is a longitudinal sectional view of an essential part of the tapping tool 100 according to an embodiment of the present invention.
4 is a plan view of an essential part of the tapping tool 100 according to an embodiment of the present invention.
5 is a cross-sectional view of another part of the tapping tool 100 according to an embodiment of the present invention.
6 is an overall conceptual configuration diagram in which a drill 210 and a rotating body 220, which are main parts of the machine tool 200, to which the tapping tool 100 according to an embodiment of the present invention is detachably coupled, are represented.
7 is a state diagram used to express that the tapping tool 100 according to an embodiment of the present invention is used in place of the drill 210 of the machine tool 200.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, a preferred embodiment of a tapping tool of the present invention will be described in detail with reference to the accompanying drawings.

As shown, the tapping tool 100 according to an embodiment of the present invention, the rotating body 220 is compatible with the drill 210 of the machine tool 200 (for example, milling or drilling machine) for drilling holes Rotating shaft 110 is detachably fastened to rotate in place, the key 120 protruding radially outward on the front side of the rotary shaft 110, and the longitudinal direction to be extrapolated to the rotary shaft 110 The center of the through-hole 130a is formed in a tubular shape, the outer peripheral surface is formed with a pair of key holes 132 in the longitudinal direction so that the key 120 is coupled to the key, the rotary shaft 110 The key 120 provided in the key is coupled to the key hole 132 to rotate integrally in accordance with the rotation of the rotary shaft 110, while being guided by the key 120 inserted into the key hole 132 The rotation to allow forward and retraction in the longitudinal direction The rotor 130 built in the shaft 110, the first bearing 141 fastened to the rear side of the rotor 130, and the second bearing 142 fastened to the front side of the rotor 130. And, in order not to be affected when the rotor 130 is rotated so that it is not in contact with the rotor 130 (thus, even if the rotor 130 rotates so that the outer 150 does not rotate and stops An outer 150 coupled to the first bearing 141 and the second bearing 142 and capable of advancing and retracting together with the rotor 130 and the rotor 130. The tool chuck 170 which is interpolated at the front side and the insertion hole 170a for interpolating the tab tool 190 is formed through the center along the longitudinal direction so as to firmly hold the tab tool 190. And tighten the tool chuck 170 in which the tab tool 190 is inserted into the male screw 135 formed at the front end of the rotor 130. The adapter 180 allows the tab tool 190 to be firmly fastened to the tool chuck 170, and the tab tool 190 is inserted into the insertion hole 170a of the tool chuck 170 to form a female screw. Characterized in that the configuration.

Therefore, the rotor 130 rotates integrally with the rotary shaft 110, and the outer 150 remains stationary without rotating even if the rotor 130 rotates, and the outer 150 and the rotor together in the longitudinal direction This allows linear movement (forward and backward).

In the tapping tool 100 according to an embodiment of the present invention, the rotary shaft 110 is rotated so that when the rotor 130 is rotated, the operator grips the outer 150 to move forward and manually. When the pre-formed workpiece hole (not shown) of the workpiece (not shown) is approached, the tab tool 190 may form a tab on the inner circumferential surface of the workpiece hole along the workpiece hole.

The operator can grasp the outer 150 and move forward because the outer structure does not rotate even if the rotor 130 rotates, and the connection configuration can move forward and retract with the rotor 130.

In the tab processing tool 100 according to the embodiment of the present invention, an insertion hole 110a is formed at the front side of the rotary shaft 110, and the front end of the rotary shaft 110 is in communication with the insertion hole 110a. There is a screw hole (110b) is formed, the key 120 is inserted to protrude into the insertion hole (110a) is fastened by a fastening screw 125 fastened to the screw hole (110b).

In the tab processing tool 100 according to an embodiment of the present invention, a central hole 143a through which the rotary shaft 110 passes is formed, and the first end of the through hole 130a is blocked while being blocked. The rotor cover 143 which is fastened to the rear end of the rotor 130 to fix the bearing 141 by screwing, for example, and the front side of the rotor 130 to fix the second bearing 142. In the rotor 130 is characterized in that it is configured to further include a bearing fixing ring 144 is fixed by extrapolation.

The rotor cover 143 serves as a cover of the rotor 130 and also serves to fix the first bearing 141 so that the first bearing 141 is firmly fastened.

In the tapping tool 100 according to an embodiment of the present invention, the rear end is penetrated by the rotor cover 143 and the front end is penetrated by the front side of the rotor shaft 110 to penetrate the rotor 130. It is provided in the hole (130a) therein, characterized in that it further comprises an elastic member 160 for applying an elastic force to the rotor 130 to the rear.

A stepped portion 111 protruding radially outward is formed on the front side of the rotary shaft 110, and the front end of the elastic member 160 is supported by the stepped portion 111.

In the tapping tool 100 according to an embodiment of the present invention, the key 120 is separated from the keyhole 132 when the tap tool 190 is further advanced than the set depth so that the rotary shaft ( In order to disconnect the rotational connection between the rotor 110 and the rotor 130, an annular idle recess frame which is formed in a radially outward direction on the inner circumferential surface of the rotor 130 while crossing the pair of key holes 132. 134 is further included, characterized in that configured.

According to the configuration of the idle indentation frame 134, it is possible to prevent the tab is processed more than the set depth by turning the key 120.

In the tapping tool 100 according to an embodiment of the present invention, the idle recess frame 134 is formed to intersect the rear end of the keyhole 132 (see FIGS. 2 to 4). .

According to this, since the idling concave frame 134 is formed at the end of the keyhole 132, it is possible to stop the rotation of the rotor as soon as the set depth is reached, thereby improving the operation reliability.

In the tab processing tool 100 according to an embodiment of the present invention, the front groove of the outer circumferential surface of the rotor 130 is formed with a recess groove 136, in order to fix the bearing fixing ring 144 It characterized in that it is configured to further include a snap ring 146 that is fitted by elastic to the fitting groove 136 of the rotor 130.

According to this, the second bearing 142 is firmly fastened, so that the outer 150 may be firmly provided.

In the tapping tool 100 according to an embodiment of the present invention, the drill 210 is detachably fastened to the rotating body 220 of the machine tool 200, and the drill 210 is used to prevent the workpiece. After drilling the hole, the drill 210 is separated and the tab machining tool 100 is fastened to the machine tool 200 by fastening the rotary shaft 110 to the rotating body 220 to which the drill 210 is fastened. It is characterized by using.

In the tapping tool 100 according to the embodiment of the present invention, the drill 210 is detachably fastened to the rotating body 220 of the machine tool 200, and the workpiece 210 is processed by the drill 210. After drilling a hole (hole), it is characterized in that the tab processing tool 100 according to the present invention, in particular compatible with the drill 210 can be used in combination with the rotary shaft 110.

The machine tool may be configured as either a milling machine or a drilling machine.

As shown in FIGS. 6 and 7, the rotor 220 is connected to the spindle 230 by a gearbox 225.

The following describes the operation of the tapping tool according to an embodiment of the present invention having the configuration as described above.

First, a workpiece hole is drilled in the workpiece. This processing hole can be drilled using the drill 210 provided in the machine tool 200.

Tapping tool 100 according to an embodiment of the present invention in the position of the drill 210 of the machine tool 200 that drilled the processing hole in the state that previously drilled the processing hole in the workpiece as described above. Fasten. That is, the rotary shaft 110 is fastened to the rotating body 220 that was connected to the drill 210 of the machine tool 200.

When the machine tool 200 is operated, the rotating body 220 rotates, and the rotating shaft 110 rotates in place by the rotating operation of the rotating body 220.

When the rotary shaft 110 rotates, when the worker grabs the outer 150 and approaches the workpiece hole, the rotor 130 which is integrally rotated with the rotary shaft 110 is advanced to the hole to be processed. .

At this time, since the outer 150 is connected to the rotor 130 by the first and second bearings 141 and 142, even if the rotor 130 rotates, the outer 150 does not rotate but stops by a worker. There is no danger in approaching the hole.

When the rotor 130 approaches while rotating to the hole to be processed, the tap tool 190 also naturally approaches while rotating to the hole to be processed.

The operator grabs the outer member 150 and approaches the tap tool 190 until it reaches the entrance of the hole to be processed.

When the tap tool 190 reaches the inlet of the hole to be processed, the tap is processed while entering the hole to be processed.

When the tap machining is completed, the operator stops the rotation of the machine tool, and when the machine tool is operated to operate the rotation in the reverse direction, the rotation shaft 110 rotates in the reverse direction, and the tap tool 190 has already been tapped. Rotate in the reverse direction and come out.

At this time, since the elastic member 160 always applies an elastic force to the rotor 130 at the rear, the rotor 130 and the elastic member 160 are caused by the elastic force of the elastic member 160 at the moment when the tab tool 190 exits from the hole to be processed. The tap tool 190 can be quickly retracted back to avoid damaging the workpiece around the inlet of the workpiece.

On the other hand, when the tap tool 190 is processed into the tap while going into the hole to be processed more than the set depth, the idle groove rim 134 of the rotor 130 is to advance to the position where the key 120 is located The key 120 is idling in the idle yaw frame 134, at which time the rotation of the rotor 130 and the rotary shaft 110 is disconnected and the rotor 130 can no longer rotate and stop and the rotary shaft Only 110 will idle.

As described above, a preferred embodiment of the present invention has been described, and it is common knowledge in the art that the present invention may be implemented in other specific forms without changing the technical spirit or essential features in addition to the above-described embodiments. It is self-evident to those who have.

Therefore, the above-described embodiments should be understood as illustrative and not restrictive.

The scope of the invention is indicated by the following claims rather than the above description, and it should be construed that all changes or modifications derived from the meaning and scope of the claims and their equivalents are included in the scope of the invention.

100: tapping tool according to an embodiment of the present invention
110: rotation shaft 110a: insertion hole of the rotation shaft
110b: screw hole of the rotary shaft 120: key
125: tightening screw 130: rotor
130a: through hole of rotor 132: key hole
134: idle idling frame 135: male thread of the rotor
136: fitting groove 141: the first bearing
142: second bearing 143: rotor cover
143a: center hole of the rotor cover 144: bearing retaining ring
146: snap ring 150: outer
160: elastic member 170: tool chuck
170a: Insertion hole of the tool chuck 180: Adapter
190: tap tool 200: machine tool
210: drill 220: rotating body
230: spindle

Claims (4)

Of the punching machine tool (200) Rotating shaft 110 is detachably fastened to the rotating body 220 to rotate in place,
A key 120 protruding radially outward on the front side of the rotary shaft 110,
A through hole 130a is formed in the longitudinal direction to be extrapolated to the rotary shaft 110, and a pair of key holes 132 are formed in the longitudinal direction on the outer circumferential surface of the key 120 so as to be coupled to the key. The key 120 is key-coupled to the key hole 132 to rotate integrally in accordance with the rotation of the rotary shaft 110, while receiving the guidance of the key 120 inserted into the key hole 132 in the longitudinal direction Rotor 130 and the shaft is built in the rotary shaft 110 to enable forward and retreat,
A first bearing 141 fastened to the rear side of the rotor 130;
A second bearing 142 fastened to the front side of the rotor 130;
In order not to be affected by the rotation of the rotor 130 is coupled to the first bearing 141 and the second bearing 142 so as not to be in contact with the rotor 130, and the rotor 130 and An outer 150 that can move forward and backward together,
A tool chuck interpolated at the front side of the rotor 130 and having an insertion hole 170a for inserting the tab tool 190 in the center along the longitudinal direction to firmly bite the tab tool 190. 170),
The tab tool 190 is firmly fastened to the tool chuck 170 by screwing the male screw 135 formed at the front end of the rotor 130 and tightening the tool chuck 170 in which the tab tool 190 is inserted. Adapter 180,
It is configured to include a tab tool 190 is inserted into the insertion hole (170a) of the tool chuck 170 to form a female screw,
When the rotary shaft 110 rotates and the rotor 130 rotates, the operator grasps the outer 150 to move forward to approach the preformed hole to be processed, and the tap tool 190 is processed. A tapping tool, wherein a tab can be formed on an inner circumferential surface of a hole to be processed along the hole.
The method according to claim 1,
A central hole 143a through which the rotary shaft 110 passes is formed and fastened to a rear end of the rotor 130 to fix the first bearing 141 while blocking a rear end of the through hole 130a. The rotor cover 143,
A bearing fixing ring 144 that is extrapolated and fixed to the rotor 130 at the front side of the rotor 130 to fix the second bearing 142;
A rear end is provided in the through hole 130a of the rotor 130 so that the rear end is supported by the rotor cover 143 and the front end is carried by the front side of the rotary shaft 110, the rotor 130 Tab working tool, characterized in that it further comprises an elastic member 160 for applying an elastic force to the rear.
The method according to claim 1,
In order to disconnect the rotary shaft 110 and the rotor 130 from the key hole 132 when the tap tool 190 moves further than the set depth, the key 120 The tool for tap machining, characterized in that it further comprises an idling indentation frame (134) which is recessed in the radially outward direction in the inner circumferential surface of the rotor (130) while intersecting a pair of key holes (132).
The method according to claim 1,
Drill 210 is detachably fastened to the rotating body 220 of the machine tool 200,
The drill 210 is separated after the drill hole is drilled into the workpiece by the drill 210, and the rotary shaft 110 is fastened to the rotating body 220 to which the drill 210 is fastened. Tool for tap machining, characterized in that the tool 100 is used is fastened to the machine tool (200).

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