KR20170069313A - A whetstone spindle mobile type honing machine - Google Patents

Abstract

The present invention relates to a honing spindle moving type honing machine which can be machined even if the length of a workpiece is long in a honing machine without making the size of the machine large, and comprises a polishing part movably coupled by a line- It is possible to reduce the cost of equipment expansion due to the installation of the machine tool while improving the manufacturing cost and space utilization through miniaturization of the machine tool and to provide the tension adjusting means when driving the moving part of the polishing part to stably maintain the inner diameter of the workpiece The present invention also provides a grinding machine for a grinding wheel spindle which can increase the efficiency of grinding by directly dressing the grinding wheel when the grinding of the grinding wheel of the grinding wheel occurs.

Description

Technical Field [0001] The present invention relates to a whetstone spindle mobile type honing machine,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a honing machine for grinding an inner diameter of a workpiece and more particularly to a honing machine capable of machining without making a machine large .

The honing machine is a machine tool for grinding the inner diameter of a workpiece made of a pipe-like shape by grinding means.

The honing machine is classified into a vertical honing machine for grinding the inner diameter of the workpiece by moving the grinding means upward and downward and a horizontal honing machine for grinding the inner diameter of the workpiece by moving the grinding means in the horizontal direction. It is so.

Here, the above-described vertical honing machine is mainly used for machining relatively short pieces in the longitudinal direction of the workpiece with a small inner diameter, and the horizontal honing machine is used when machining a workpiece having a large inner diameter and a long length direction.

On the other hand, the above-described honing machine has a spindle including a grindstone on the opposite side, while a main shaft for rotating the workpiece while clamping the workpiece is formed on one side, as in Korean Patent No. 10-1564075, And the spindle is inserted into the inner diameter of the workpiece and moves while being polished.

(Patent Document 1) KR10-1564075 B Honing Device

However, the above-mentioned conventional patent can process the inner diameter of the workpiece only when the length of the workpiece in the longitudinal direction is long and the configuration for rotating the grinding wheel while supporting the grinding wheel is longer than the lengthwise direction of the workpiece.

Therefore, the overall size of the honing device must be increased, resulting in an increase in fabrication cost and a further increase in space, facility expansion, and dustproofing so that a large-sized honing device can be installed.

In order to solve the above-mentioned problems, the present invention provides a grinding machine for moving a polishing unit by moving a polishing unit using a polishing unit moving means including a moving member having a strip shape, The present invention has been made to solve the above-mentioned problems occurring in the prior art.

It is still another object of the present invention to enable stable polishing of a workpiece through a polishing unit through a tension adjusting means.

It is still another object of the present invention to provide a dressing apparatus capable of directly carrying out a dressing operation even when the polishing unit is blinded.

According to the present invention, it is possible to reduce the manufacturing cost and the space utilization by reducing the size of the machine tool by applying the moving member having a line shape, and to reduce the cost of equipment expansion due to the installation of the machine tool.

Further, it is possible to stably grind the inner diameter of the workpiece by providing the tension adjusting means when driving the polishing portion moving means.

In addition, it is a useful invention for increasing the efficiency of polishing by directly dressing the grindstone of the grinding portion when the grinding occurs.

1 is a schematic view of a grinding spindle moving type honing machine according to the present invention;

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

1, the grinding portion 10 is for machining the inner diameter of the workpiece W and has a grindstone 11 for abutting the workpiece W and polishing the inner diameter on the outer side .

The grinding wheel 11 is formed in a circular shape in section and has an outer diameter formed by a polishing surface 11a capable of polishing the inner diameter of the workpiece W through contact with the workpiece W, (11b) is formed so that the overall shape is the same as that of the hollow pipe.

Inside the grinding wheel 11 is formed a fixing table 12 to be engaged with a fixing table coupling hole 11b formed in the grinding wheel 11.

The fixing table 12 is for supporting and coupling with the inside of the grinding wheel 11 and has a circular shape like the grinding wheel 11 and a rotation motor coupling hole 12a is formed inside.

And a polishing unit rotating motor 13 is coupled to the rotating motor coupling hole 12a formed inside the fixing table 12. [

Therefore, when the polishing unit rotary motor 13 is driven, the fixing table 12 coupled to the outside of the polishing unit rotary motor 13 and the grinding wheel 11 supported by the fixing table 12 rotate, So that the inner diameter of the work W can be polished.

Next, the work rotating means 20 is a means for rotating the work W. On one side thereof, a drive roller 21 abutting against the outer peripheral surface of the work W is formed. 21 for transmitting the rotational power to the workpiece rotating motor 22. [

A plurality of rollers R are provided at the front and rear ends of the workpiece W so that the workpiece W can be smoothly rotated during driving of the drive roller 21 while supporting the workpiece W .

Although the drive roller 21 and the plurality of rollers R constituting the above-described work rotating means 20 are not shown in detail in the drawing, means for varying the position in accordance with the size of the work W So as to rotate the workpiece W having various diameters.

Particularly, the polishing unit rotary motor 13 of the polishing unit 10 and the workpiece rotary motor 22 of the workpiece rotating unit 20 described above are moved in different directions As shown in Fig.

Next, the polishing portion moving means 30 is configured to move the polishing portion 10 in the direction in which the workpiece W extends when the inner diameter of the workpiece W is polished.

The polishing unit moving means 30 includes a driving wheel 31 that receives the power of the motor M at any one of the front and rear sides of the work W, The idle wheel 32 is formed.

A moving member 33 in the form of a string is coupled to the outer side of the driving wheel 31 and the idle wheel 32 so that both ends of the moving member 33 are coupled to each other And is fixedly coupled to the movable member engaging portion 13a formed in the polishing unit rotary motor 13. [

Therefore, when the motor M of the polishing unit moving means 30 is driven, the moving member 33 can move and move the polishing unit 10 in the forward and backward directions.

Here, since the motor M of the polishing unit rotating means 30 must move the polishing unit 10 in the forward and backward directions, it is preferable to use the motor M as a motor M capable of forward and reverse rotation.

The movable member 33 may be formed in any one of a wire, a chain belt, a timing belt, a flat belt, and a V-belt. The wheel 31 and the idle wheel 32 may also be composed of any one of a roller, a sprocket, a timing gear, a flat belt pulley, and a V-belt pulley.

In the present invention, the tension adjusting means 40 can be further formed.

The tension adjusting means 40 is constituted by a tension adjusting wheel 41 coupled to the moving member 33 of the polishing unit moving means 30 and a weight 42 coupled to the tension adjusting wheel 41, The tension adjusting wheel 41 may be formed of any one of a roller, a sprocket, a timing gear, a flat belt pulley, and a V-belt pulley in accordance with the shape of the moving member 33.

Although not shown in detail in the drawings, the weight 42 may be formed by combining a plurality of weights so that one weight can be adjusted.

In particular, although not shown in detail in the drawings, the tension adjusting wheel 41 may be configured to be movable in the upward and downward directions so as to be applicable to the workpiece W having various diameters.

In the meantime, in the present invention, a dressing portion 50 is further formed to solve the problem when the grinding wheel 11 can not be polished due to snowballing during the inner diameter polishing of the workpiece W through the grinding portion 10 .

The dressing unit 50 is provided on the driving wheel 31 of the polishing unit moving unit 30 so that the polishing unit 10 can move the polishing unit moving unit 30 to the dressing unit 50, And the idle wheel 32, but it is preferable to form the workpiece W at any one of the front and rear sides of the workpiece W.

A preferred embodiment of the grindstone spindle moving type honing machine of the present invention constructed as above will be described as follows.

First, in the present invention, as in the existing honing machine, the workpiece W and the grinding wheel 11 of the grinding section 10 are rotated in order to grind the inner diameter of the workpiece W, The backward moving relationship is the same.

In order to polish the inner diameter of the workpiece W by using the grinding machine 100 of the present invention, the workpiece W to be polished is arranged first, The driving roller 21 and the plurality of rollers R of the workpiece rotating means 20 must be set so as to be in contact with the outer circumferential surface of the workpiece W. [

The polishing surface 11a formed on the grindstone 11 of the polishing unit 10 is moved by using the position changing means 34 formed on the driving wheel 31 and the idle wheel 32 of the polishing unit moving means 30, The weight 42 of the tension adjusting means 40 is adjusted such that an appropriate amount of tension is applied to the moving member 33 of the polishing unit moving means 30 Set to maintain a weight that can occur.

When all the settings are completed as described above, the normal power is applied to drive the honing spindle moving type honing machine 100 of the present invention.

Then, the fixed base 12 and the grinding wheel 11 coupled thereto are rotated by the operation of the grinding portion rotating motor 13 of the grinding portion 10, and at the same time, the work piece rotating motor 22, the drive roller 21 is operated to rotate the work W.

In this state, when the operator drives the motor M of the polishing unit moving means 30 and inserts the polishing unit 10 into the inner diameter of the workpiece W, the workpiece W rotates in the state in which the workpiece W rotates The inner diameter of the workpiece W is polished by the grinding wheel 11 rotating in the opposite direction to the workpiece W.

At this time, since the tension adjusting means 40 is formed on the moving member 33 of the polishing unit moving means 30 to form a tension on the moving member 33, as described above, even when the polishing unit 10 is moved So that the grinding operation of the inner diameter of the workpiece W can be performed smoothly without movement of the grinding portion 10 being possible.

In particular, the moving member 33 of the above-described polishing unit moving means 30 is moved by the driving wheel 31 and the idle wheel 32. [

Therefore, when the drive wheel 31 and the idle wheel 32 are formed of a chain or a gear type wheel capable of transmitting an accurate rotational force, the operator can more accurately convey the desired movement amount.

Meanwhile, since the polishing unit 10 for machining the inner diameter of the workpiece W is moved by the moving member 33 in the form of a line, the overall size of the machine tool of the present invention can be reduced The present invention can be installed even if the space for installing the present invention is small, and in particular, the facility for installing the present invention is also made compact, and in addition to the reduction of the manufacturing cost and the utilization of the space for manufacturing the present invention It is possible to reduce the cost due to the expansion of the facility.

In addition, since the grindstone 10 of the grinding unit 10 as described above is formed in the form of a grindstone, a phenomenon of snowballing may occur when a repetitive grinding operation is performed.

Since the dressing portion 50 is formed on one side of the grinding wheel 10, if the grinding phenomenon of the grinding wheel 11 occurs and the grinding efficiency is lowered, the grinding portion moving means 30 It is possible to obtain an effect of improving work efficiency and convenience by carrying out dressing work after moving the polishing section 10 to the dressing section 50 by using the above-

Although the preferred embodiments of the present invention have been described for illustrative purposes, those skilled in the art will appreciate that various modifications, additions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims. And is obvious to those of ordinary skill in the art.

W: Workpiece
10:
11: grindstone 11a: polishing surface 11b: fixing table coupling hole
12: Fixing table 12a: Rotary motor engaging hole
13: Polishing section rotating motor 13a: Moving member engaging hole
20: Workpiece rotating means
21: workpiece rotation motor 22: roller
30: polishing unit moving means
31: driving wheel 32: idle wheel 33: moving member 34: position varying means
40: tension adjusting means
41: tension adjusting wheel 42: weight
50: Dressing portion
100: grinding wheel spindle moving type honing machine

Claims (5)

A cylindrical grinding wheel 11a is formed on the outer side of the work W so as to abrade and grind the inside of the work W so as to abrade the inside of the work W. Inside the grinding wheel 11a, The grinding machine according to any one of claims 1 to 3, wherein the grinding machine comprises: a grinding wheel (12) And a polishing unit rotating motor (13) coupled to the coupling hole (12a) to rotate the grinding wheel (11) formed outside the fixing table (12) and the fixing table (12);
A driving roller 21 formed on the outer side of the workpiece W and in contact with the workpiece W and a workpiece rotating motor 21 for rotating the driving roller 21 by transmitting power to the driving roller 21 22) for rotating the workpiece rotating means (20);
A driving wheel 31 which is coupled to the polishing part rotating motor 13 of the polishing part 10 and rotated by the driving of the motor M and a driving wheel 31 which is rotated on the opposite side of the driving wheel 31, And the idle wheel 32 is coupled to the outer side of the idle wheel 32 and the idle wheel 32 to move the idle wheel 32 and the grinding unit 10 in the forward and backward directions, A polishing unit moving means 30 composed of a moving member 33 coupled to the front and rear sides of the polishing unit rotary motor 13 and moving the polishing unit 10 in the forward and backward directions by the rotation of the driving wheel 31, ; And a grinding wheel spindle moving honing machine.
The apparatus of claim 1, wherein the driving wheel (31) and the idle wheel (32) of the polishing unit moving means (30) are configured in the form of a roller, a sprocket, a timing gear, a flat belt pulley, The moving member (33) is configured in the form of any one of a wire, a chain belt, a timing belt, a flat belt, and a V-belt.
The polishing apparatus according to claim 1, characterized in that the driving wheel (31) and the idle wheel (32) of the polishing unit moving means (30) further include position changing means (34) for changing the position in the vertical direction A grinding wheel spindle moving type honing machine.
The polishing apparatus according to any one of claims 1 to 3, wherein the moving unit (33) is provided with a weight (42) and a tension adjusting wheel (40) composed of a tension adjusting wheel (41) Wherein the grinding machine is further comprised of a grindstone spindle moving type honing machine.
The polishing apparatus according to claim 1, wherein the polishing unit (10) is provided at any one of front and rear sides of the workpiece (W) formed between the driving wheel (31) and the idle wheel (32) Further comprising a dressing portion (50) for removing an eyelid phenomenon of the polishing surface (11a) formed on the grinding wheel (11) of the grinding wheel (11).

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