KR20070034199A - Universal tool grinder for changing the position and attitude of whetstones and tools - Google Patents

Abstract

The present invention provides a universal tool grinder capable of adjusting the height and cutting direction of the grindstone and changing the position and posture of the grindstone and the tool for milling cutter bite grinding, round grinding, groove grinding and rapid and precise grinding. . The present invention provides a polishing machine for polishing a tool, comprising: a base 20; A main shaft 30 which is lifted in the Z-axis direction perpendicular to the base 20 and installed to be height-adjustable; A head 40 rotatably mounted about a Z axis on an upper surface of the main shaft 30; A whetstone 51 and 52 mounted on the head 40 to be tilt-adjustable about the tilting axis 42 disposed in the Y-axis direction perpendicular to the Z-axis direction of the main shaft 30. A whetstone body 50; A whetstone height adjusting unit 100 for elevating the main shaft 30 to adjust the height position of the whetstones 51 and 52; The tool chucking unit 200 is disposed on one side of the base 20 and grips a tool.

Whetstone, Polishing, Grinder, Grinding, Milling, Bite

Description

Whetstone, tool location and position changeable tool grining machine

The following drawings, which are attached in this specification, illustrate preferred embodiments of the present invention, and together with the detailed description of the present invention, serve to further understand the technical spirit of the present invention. It should not be construed as limited to.

1 is an overall perspective view of a universal tool grinder according to an embodiment of the present invention.

2 is a front view of FIG. 1;

3 is a rear view of FIG. 1.

Figure 4 is a tilting operation state diagram of a whetstone in accordance with an embodiment of the present invention.

Figure 5 is an assembled state of the tool chucking unit applied to the embodiment of the present invention.

Figure 6 is a rotation state of the tool chucking unit applied to the embodiment of the present invention.

<Explanation of symbols for the main parts of the drawings>

20: base

30: spindle

31: rack gear

42: tilting shaft

44: Whetstone body fixing bolt

50: whetstone body

100: whetstone height adjustment unit

102: whetstone handle

104: worm wheel

106: worm gear

108: pinion gear

110: worm gear shaft

TECHNICAL FIELD The present invention relates to a tool grinder, and more particularly, to a universal tool grinder, which makes it possible to freely change the position and posture of a grindstone and a tool.

Tool grinders generally have a grindstone on each side. One is used for roughing and the other is used for finishing. Of course, the grinding wheel in the location can be used to replace the one for other purposes.

The most commonly used tool grinder is a method in which a worker grabs by hand and selects a grinding wheel to perform grinding. In this case, the quality of machinability is determined by the skill of the operator in the case of tools that require precise grinding. In particular, the non-skilled person is not only difficult to carry out accurate polishing but also is prone to safety accidents due to exposure to polishing risk.

In addition, while the conventional tool grinder can be changed to some extent of the tool, it is impossible to change the position or attitude of the grindstone. As a result, various tools were not only able to be precisely ground but also difficult to be polished to the desired shape.

Therefore, the present invention was created in view of the above-mentioned circumstances, and it is possible to adjust the height and cutting direction of the grindstone, and to grind the mill cutter bite, round grind, groove grind and rapid and precise grind. The object is to provide a universal tool grinder capable of changing the position and attitude of the tool.

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

1 is an overall perspective view of a universal tool grinder according to an embodiment of the present invention, Figure 2 is a front view of Figure 1, Figure 3 is a rear view of Figure 1, Figure 4 is a tilting of the grinding wheel according to an embodiment of the present invention 5 is an operation state diagram, Figure 5 is an assembly state diagram of the tool chucking unit applied to the embodiment of the present invention, Figure 6 is a rotation state diagram of the tool chucking unit applied to the embodiment of the present invention.

In FIGS. 1 to 3, reference numeral 20 denotes a base.

The main shaft 30 is installed in the base 20 so that the main shaft 30 can be elevated in the vertical Z-axis direction, and the main shaft 30 is height-adjustable by the grinding wheel height adjusting unit 100 which will be described later. The main shaft 30 can be fixed to the base 20 by the fastening force of the lever 31.

A head 40 rotatable about a Z axis is mounted on an upper surface of the main shaft 30, and the head 40 is a head fixing bolt 34 screwed on a Z axis rotating shaft of the main shaft 30. It is fixed to the main shaft 40 by the.

Therefore, when the head fixing bolt 34 is released, the head 40 is freely rotated 360 ° on the upper surface of the main shaft 30. At this time, the angular division scale 33 is formed on the main shaft 30, and the indicator scale 41 is formed on the head 40. Therefore, the head 40 can set the rotation angle as desired.

The head 40 is equipped with a whetstone body 50. The whetstone body 50 is an assembly including at least one or more whetstones 51 and 52 and a drive motor M1 for driving the whetstones 51 and 52, and the whetstone body 50 includes a drive motor M1. A control box 60 is mounted to electrically turn on / off control of the operation.

The whetstone body 50 is mounted on the head 40 and supported by a tilting shaft 42 disposed in the Y-axis direction perpendicular to the Z-axis direction of the main shaft 30. Therefore, the whetstone body 50 is capable of adjusting the left and right tilt about the tilting axis 42.

In addition, the whetstone body 50 is fixed to the head 40 by the fastening force of the whetstone body fixing bolt 44 screwed to one end of the tilting shaft (42). Therefore, the whetstone body 50 can change the posture by tilting in one direction about the tilting shaft 42 when the fixing force of the whetstone body fixing bolt 44 is released.

As such, the grinding wheel body 50 rotates about the Z axis and at the same time, the left and right tilt adjustments can be performed about the Y axis, and thus, various angles of the tool can be polished.

On the other hand, the grinding wheel height adjustment unit 100 is provided with a grindstone handle 102 rotatably installed on the base 20, as shown in Figure 3, the worm wheel 104 on the rotating shaft 101 of the grindstone handle 102 Worm gear 106 is engaged with the worm wheel 104, and the worm gear 106 is mounted at one end of the worm gear shaft 110, and the other end of the worm gear shaft 110 is pinion gear. 108 is mounted, the pinion gear 108 is configured to mesh with the rack gear 31 of the main shaft (30).

At this time, the rotating shaft 101 of the grinding wheel handle 102 is located in a direction parallel to the main shaft 30, the worm gear shaft 110 is located in a direction perpendicular to the main shaft (30).

Therefore, when the grinding wheel handle 102 is rotated in one direction, the worm gear shaft 110 connected to the worm wheel 104 and the worm gear 106 that rotates orthogonally orthogonally rotates, and the pinion gear 108 connected to the worm gear shaft 110 at the same time. As the linear movement of the rack gear 31 is moved, the main shaft 30 is moved up and down.

Thus, the main shaft 30 moves up and down by the amount of rotation of the grindstone handle 102, and the height of the grindstones 51 and 52 on the grindstone main body 50 is adjusted.

Thus, according to the present invention, it is possible to adjust the height of the grindstone (51, 52) to set the polishing surface of the tool (T) bite to the collet chuck of the tool chucking unit 200 in the required grinding wheel polishing position to perform the polishing Can be.

On the other hand, the present invention is provided with a tool chucking unit 200 for holding a tool on one side of the base 20.

The tool chucking unit 200 is provided with a feed shaft 210 installed in the base 20 to be transportable in a direction parallel to the X-axis direction.

One end of the feed shaft 210 is connected to the screw shaft 204 of the feed handle 202, and the fixed block 220 is mounted on the other end of the feed shaft 210.

The feed shaft 210 is linearly conveyed by being connected to the screw shaft 204 of the feed handle 202 provided on one side of the base 20, the feed shaft 204 is a support shaft disposed horizontally A guide block 208 slidingly coupled to 206 is supported.

The tool block head 230 is rotatable around the w-axis, and the tool block head 230 is fixed to the fixing block 220 by the fixing handle 232.

The upper surface of the tool head head 230 is mounted with a swing tool stand 240 that can rotate around the v-axis, the swing tool stand 240 is provided with a quick slider 250 that can be moved linearly. Therefore, the quick slider 250 may manipulate the rotational position about the w-axis and the v-axis together with the swing tool post 240.

The quick slider 250 is provided with a pair of guide shafts 252 at a lower portion thereof, and the guide shafts 252 are slidably mounted to the swing tool stand 240. Therefore, the quick slider 250 may perform a rapid straight line movement while receiving the guide of the guide shaft 252.

On the upper surface of the quick slider 250, the microadjuster 270 is slidably installed as shown in FIG. 5, and the microadjuster 270 is screwed to the quick slider 250 by screw shaft ( It is to be moved finely by the fine adjustment handle 274 connected to 272.

A collet chuck 260 is disposed on an upper surface of the microadjustment table 270, and the collet chuck 260 is rotatably driven by a driving motor M2.

In addition, the collet chuck 260 is guided to the clamping bolt 276 on the upper surface of the microcontroller 270 to be rotated and fixed about the Z1 axis. In the present embodiment, as shown in FIG. 6, the long holes 281 and 281 are formed in the base 280 supporting the collet 260, and the clamping bolts 276 are guided to the long holes 281 and 281 when the collet 260 is rotated. It is configured to be.

A jig installation hole 240a is formed in the v-axis of the swing tool post 240, and a tool setting jig 300 may be detachably installed in the jig installation hole 240a.

The operation of this embodiment configured as described above will be described.

First, when the head fixing bolt 34 is loosened, the whetstone body 50 is rotatable about the Z axis integrally with the head 40.

Therefore, if one of the whetstone 51 is a rough whetstone and the other whetstone 52 is a fine whetstone, if the whetstone body 50 is rotated 180 °, the same surface can be precisely finished at once without moving the position of the tool T. I can process it.

In addition, it is possible to tilt the selected grindstone 51 or 52 by the rotation, thereby enabling the polishing of the tool T using the side of the grindstone.

In addition, when operating the handle 102, the main shaft 30 is raised and lowered to adjust the height position of the grindstone (51, 52). Therefore, groove cutting of the tool 10 is possible. That is, after the grinding wheel 51 is positioned on the upper surface of the tool 10 (for example, the drill) and then the quick slider 250 or the microadjustment table 270 is transferred, the groove 10 of the tool 10 may be processed.

According to the present invention, the collet chuck 260 may rotate about the v-axis in conjunction with the swing motion of the swing tool post 240, so that the grinding of the tool 10 may be performed. Therefore, the present invention is easy to perform the polishing process while performing the polishing while using the conventional R gauge, it is possible to precise processing without using the R gauge.

In addition, the collet chuck 260 may be rapidly moved by the quick slider 250 and may be finely moved by the fine adjustment handle 274, so that the grinding may be quickly completed while performing rapid and precise transfer as necessary.

In addition, the collet chuck 260 is automatically rotated by the driving of the drive motor M2, it is possible to polish the tool 10 to a constant diameter.

In particular, when grinding a bite provided with a plurality of milling cutter body can be performed while rotating the collet chuck 260 by dividing it can all implement the same polishing angle on the same surface.

As described above, although the present invention has been described by way of limited embodiments and drawings, the present invention is not limited thereto, and the technical idea of the present invention and the following by those skilled in the art to which the present invention pertains. Of course, various modifications and variations are possible within the scope of equivalents of the claims to be described.

As described above, according to the universal tool grinder capable of changing the position and attitude of the grindstone and tool of the present invention, the height and the cutting direction of the grindstone can be adjusted to precisely grind the tool in a desired posture.

In addition, since fine feeding and rapid feeding of the collet chuck are possible, the polishing speed is high, and the rotational movement of the collet chuck is possible, thus enabling precise round grinding without using R gauge. In particular, milling cutter bite grinding and drill groove grinding are very easy, simple and precise grinding.

Claims (9)

In the grinding machine used to polish the tool, A base 20; A main shaft 30 which is lifted in the Z-axis direction perpendicular to the base 20 and installed to be height-adjustable; A head 40 rotatably mounted about a Z axis on an upper surface of the main shaft 30; A whetstone 51 and 52 mounted on the head 40 to be tilt-adjustable about the tilting axis 42 disposed in the Y-axis direction perpendicular to the Z-axis direction of the main shaft 30. A whetstone body 50; A whetstone height adjusting unit 100 for elevating the main shaft 30 to adjust the height position of the whetstones 51 and 52; The universal tool grinder capable of changing the position and attitude of the grindstone and tool, characterized in that it comprises a tool chucking unit (200) disposed on one side of the base (20) to hold the tool. The method of claim 1, The grinding wheel height adjustment unit, A grindstone handle (102) rotatably mounted to the base (20); A worm wheel 104 mounted on a rotation shaft of the whetstone handle 102; Worm gear rotatably installed on the base 20 by mounting the worm gear 106 meshed with the worm wheel 104 and the pinion gear 108 meshed with the rack gear 31 of the main shaft 30 at both ends. A universal tool grinder capable of changing the position and posture of a grindstone and tool, comprising a shaft (110). The method of claim 1, The head 40 is a universal tool grinder capable of changing the position and attitude of the grindstone, tool, characterized in that is fixed to the main shaft 40 by a head fixing bolt 34 screwed to the main shaft (30). The method of claim 1, The whetstone body 50 is fixed to the head 40 by a whetstone body fixing bolt 44 screwed to one end of the tilting shaft 42, it is possible to change the position and attitude of the whetstone and tool Universal tool grinder. The method of claim 1, The tool chucking unit 200, A feed shaft 210 installed in the base 20 so as to be movable in the X-axis direction; A fixed block 220 fixed to one end of the feed shaft 210; A tool stand head 230 mounted to the fixed block 220 and installed to adjust the rotation angle using the v-axis placed in the direction perpendicular to the feed shaft 210 as the rotation axis; A swing tool post 240 mounted to an upper surface of the head 230 and installed to adjust a rotation angle about a w-axis; A quick slider 250 installed on the swing tool stand 240 so as to be linearly movable; And a collet chuck (260) mounted above the quick slider (250) for holding a tool, wherein the position and attitude of the grindstone and tool can be changed. The method of claim 5, On the upper surface of the quick slider 250, the collet chuck 260 is mounted and the microadjustment table 270 for sliding movement is installed, The fine adjustment table 270 is finely moved by the fine adjustment handle 274 connected to the screw shaft 272 screwed to the quick slider 250 is possible to change the position and attitude of the grindstone, tool Universal tool grinder. The method of claim 6, The collet chuck 260 is a universal tool grinder capable of changing the position and attitude of the grindstone, tool is configured to be guided by the clamping bolts (276,276) fastened to the upper surface of the microcontroller 270 is rotatable and fixed at the same time . The method according to any one of claims 5 to 7, The collet chuck is a universal tool grinder capable of changing the position and attitude of the grindstone, tool, characterized in that connected to the output end of the drive motor (M2) disposed on one side thereof to enable rotational driving. The method of claim 5, The swing tool stand 240 is a universal tool grinder capable of changing the position and attitude of the grindstone, tool, characterized in that the tool set jig 300 is further provided detachably installed.

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