JPH11123467A - Grooving device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To permanently realize the smooth rolling condition of a work roller while preventing meaningless complicated constitution in the case of forming an inside diameter groove on an inner circumference of a cylindrical body as designed. SOLUTION: A grooving device comprises a guide member 1 which is inserted and placed in a cylindrical body C and provided with a flat guide surface 1c along the axial direction of the cylindrical body C, a slide member 5 which is placed on the guide surface 1c of the guide member 1 and movable in the axial direction of the cylindrical body C by the external force action, a work roller which is connected to the slide member 5 through a rotary shaft 3 and supported in a relatively displaceable manner at least in the radial direction of the cylindrical body C, and an operation rod 4 a tip part 4a of which is connected to the rotary shaft 3 to pivotably support the work roller 2, and a base end operation part of which is extended outward of the cylindrical body C.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is used for forming a linear groove such as a bypass or a pressure relief groove on an inner peripheral surface of a cylinder body constituting a hydraulic device such as a hydraulic cylinder or an oil damper. The present invention relates to an improvement in a groove processing device.

[0002]

2. Description of the Related Art In a hydraulic device such as a hydraulic cylinder or an oil damper, a linear groove such as a bypass passage or a pressure relief groove may be formed on an inner peripheral surface of a cylinder body as a component thereof. .

[0003] As means for forming the linear grooves, besides electric processing by electric discharge or electrolysis, there is cutting processing using a cutting tool, and furthermore, deformation processing using a bulge or a processing roller. However, this deformation processing is advantageous in that the processing time is shorter than cutting and electrical processing.

[0004] Further, even in the case of deformation processing, comparing the case where a bulge is used and the case where a processing roller is used, the processing time is more advantageous when the bulge is used, while the processing time when the bulge is used is advantageous. It is known that using a processing roller is advantageous in that the processing length is not restricted.

Further, as a conventional groove processing apparatus for forming a linear groove using a processing roller, there is Japanese Patent Publication No. 2-77.
In addition to the structure disclosed in Japanese Patent Publication No. 28-28, there is, for example, a structure as shown in FIGS.

The groove machining apparatus will be described in detail. A guide member inserted and mounted on the lower half of the cylinder body C along the axial direction of the cylinder body C which is long and horizontally laid. 1 and a groove C1 along the axial direction of the cylinder body C on the inner peripheral surface of the upper half side of the cylinder body C while rolling on the guide member 1 in the axial direction of the cylinder body C.
(See FIG. 8).

The processing roller 2 is formed in a so-called abacus ball shape (see FIG. 9), and when it rotates about the rotation shaft 3, that is, when it rolls, its revolving point 2a It is stated that the groove C1 is set so as to form a groove C1 having a sectional shape corresponding to this.

A rotating shaft 3 for supporting the processing roller 2
Is connected to a so-called bifurcated tip portion 4a of the operating rod 4 from which a base operating portion (not shown) projects outside the cylinder body C.

On the other hand, the guide member 1 has a narrow scanning groove 1a formed in the center of the upper surface thereof in the axial direction of the guide member 1, that is, along the axial direction of the cylinder body C.
It is set so that the point 2a of the processing roller 2 is present in the copying groove 1a to perform so-called copying guidance.

[0010] Incidentally, as shown in the figure, the guide member 1 has, at the center of the upper surface thereof, a concave groove 1b having a wide cross-sectional concave shape along the axial direction of the guide member 1, and the concave groove 1b. The groove 1a is formed in the lower bottom of the control rod 4, and the lower end of the tip 4a of the operating rod 4 is provided in the groove 1b so as to be a restriction groove for left-right movement.

The operating rod 4 is set so as to be so-called pushable in the drawing,
Instead of this, as shown in a virtual diagram in FIG. 8, the setting may be made so as to be a so-called victory.

Therefore, in the illustrated groove processing apparatus, the point 2a of the processing roller 2 is brought into pressure contact with the inner peripheral surface of the cylinder body C while being located in the copying groove 1a formed in the guide member 1. The processing roller 2 allows the inner peripheral surface of the cylinder body C to bulge and deform to the outer peripheral side.

In this state, the processing roller 2 is rolled through the operation rod 4 to thereby obtain the processing roller 2.
Will roll along the scanning groove 1a, and a groove C1 having a desired depth in a cross-sectional shape corresponding to the shape of the point 2a of the processing roller 2 can be formed on the inner circumferential surface of the cylinder body C in the axial direction. Will be.

At this time, a groove C1 having a desired length can be formed depending on the setting of the rolling stroke of the processing roller 2, and the diameter of the processing roller 2 and the shape of the guide member 1 can be copied. By arbitrarily setting the height position, width, and the like of the groove 1a, the groove having an arbitrary depth corresponding to the groove 1a on the inner peripheral surface of the cylinder body C, and not only a continuous state but also an intermittent state. C1 can also be formed.

It is to be noted that the processing roller 2 is
, Ie, the processing roller 2 is moved to the moving side, but the guide member 1 side, that is, the cylinder body C
The same operation and effect can be obtained even if the side is moved.

[0016]

However, it is pointed out that the groove processing apparatus shown in the drawings, including the one disclosed in Japanese Patent Publication No. 2-7728, has the following disadvantages. Is done.

That is, in the conventional groove processing apparatus, when the processing roller 2 rolls, the orbiting tip 2a of the processing roller 2 is of course pressed against the inner peripheral surface of the cylinder C. At this time, the guide member 1 is simultaneously pressed against the copying groove 1a.

Therefore, the rotation direction of the processing roller 2 is
For example, when the rotation direction is indicated by an arrow in FIG. 8, the rotation direction is a so-called forward direction with respect to the cylinder body C, whereas the rotation direction is a so-called reverse direction with the guide member 1.

Therefore, at this time, the tip 2a of the processing roller 2 rolls in such a state as to rub against the upper edge of the copying groove 1a. As a result, either the tip 2a of the processing roller 2 or the copying groove 1a. However, both or both will be worn, which makes it difficult to form the groove C1 on the inner peripheral surface of the cylinder body C by the subsequent reuse.

A phenomenon in which the rotation direction of the processing roller 2 is a so-called reverse direction may also appear between the processing roller 2 and the cylinder body C. When this phenomenon occurs, the tip 2a of the processing roller 2 may be turned off. Rolling is performed by rubbing the inner peripheral surface of the cylinder body C.
Is formed, and the groove C1 is pushed and cut off when the groove C1 is formed, thereby causing a problem of generating burrs.

When the processing roller 2 is not rolled with respect to any of the cylinder body C and the guide member 1, the tip 2a of the processing roller 2 is partially worn. Is not expected any more, and the groove C1 as set on the inner peripheral surface of the cylinder body C cannot be formed.

The present invention has been made in view of the above-mentioned circumstances, and an object of the present invention is to enable a smooth rolling state of a processing roller to be realized permanently, and to realize an inner circumferential surface of a cylinder body. An object of the present invention is to provide a groove processing apparatus that is optimal for forming and processing grooves as set on a surface.

[0023]

SUMMARY OF THE INVENTION In order to achieve the above-mentioned object, the structure of the present invention basically has a flat guide surface which is inserted and mounted in a cylinder and extends along the axial direction of the cylinder. A guide member, a slide member mounted on the guide surface of the guide member and movable in the axial direction of the cylinder body by the action of an external force, and at least a diameter of the cylinder body connected to the slide member via a rotation shaft. A processing roller supported so as to be capable of relative displacement in a direction, and an operating rod having a distal end connected to a rotating shaft that supports the processing roller and having a proximal operating section extending outside the cylinder body. Let's say

At this time, usually, the cylinder body is laid horizontally, so that the guide member is inserted and mounted on the lower half side of the cylinder body, and the guide member is placed on a flat guide surface. In this mode, a slide member connected with a processing roller is slidably mounted.

In the above configuration, more specifically, the connection between the slide member and the processing roller is determined by adjusting the length and the shape of the rotation shaft that rotatably supports the processing roller so that both ends of the rotation shaft are inserted. It is assumed that a pair of copying guide holes are formed in the slide member, and one end of the pair of copying guide holes is positioned so as to be separated from the guide member in the radial direction of the cylinder body, while the other end is the diameter of the cylinder body. It is assumed that the hole is perforated so as to approach the guide member in the direction.

At this time, it is preferable that an inclined portion having an appropriate length is formed between one end and the other end of the copying guide hole.

[0027] In the above structure, preferably, the guide member has a parallel left and right movement regulating groove in the center of the guide surface along the axial direction of the cylinder body, and a slide member is provided in the left and right movement regulating groove. And a protrusion projecting from the lower end of the slidably fitted.

At this time, it is assumed that a sliding member made of Teflon or the like is disposed on one of the guide surface of the guide member and the lower surface of the slide member which is in sliding contact with the guide member.
A bearing member made of a steel ball, a needle, or the like may be provided between the guide surface of the guide member and the lower surface of the slide member.

[0029]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described based on illustrated embodiments. As shown in FIGS. 1 and 2, a groove machining apparatus according to one embodiment of the present invention
It has a guide member 1, a processing roller 2, and an operating rod 4 in appearance, similarly to the above-described conventional groove processing apparatus.
There is a difference in having.

The slide member 5 is placed on the flat guide surface 1c of the guide member 1 so as to be movable in the axial direction of the cylinder body C by the action of an external force. Are further linked in such a manner that they are connected via the rotary shaft 3 so as to enable at least a relative displacement of the cylinder body C in the radial direction.

That is, first, the guide member 1 is disposed in the cylinder body C placed horizontally (or vertically) so that the flat guide surface 1c extends along the axial direction of the cylinder body C. In the illustrated embodiment,
For example, the cylinder C is inserted and placed in the cylinder body C from an opening end (not shown) on the right side in FIG.

At this time, the curvature of the curved surface (not shown) of the guide member 1 is set so as to coincide with the curvature of the inner peripheral surface of the cylinder C (see FIG. 2). It is stated that the rotation in the cylinder body C is prevented by the so-called full surface contact on the curved surface.

By the way, in this guide member 1,
Although not shown, the base end side with respect to the distal end side inserted and mounted in the cylinder body C extends to the outside of the cylinder body C. In this case, the cylinder body C may be separated by appropriate means. This base end is fixed to the other part by a suitable driving means in the same manner as that fixed to the part, thereby enabling the sliding movement in the cylinder body C while reliably preventing the rotation. It may be done.

Next, as described above, the slide member 5 is placed on the guide surface 1c of the guide member 1 and is slidable in the axial direction of the cylinder body C by the action of an external force. In this case, the guide member 1 is set so as to be movable without so-called eccentricity.

That is, in the illustrated embodiment, the cylinder body C is provided at the center of the guide surface 1c of the guide member 1.
Is formed by slidably fitting a pair of protrusions 5a projecting from the lower end of the slide member 5 into the left and right movement restricting grooves 1b. Thereby, the lateral movement and the eccentric movement of the slide member 5 on the flat guide surface 1c of the guide member 1 are prevented.

In the illustrated embodiment, the projections 5a are formed in a navel shape and are provided in a pair at an appropriate distance. Instead of this, the projections 5a in FIG. As shown in an imaginary diagram, a pair of protrusions 5a may be set in a rib shape in a continuous state, and in this case, a pair of protrusions 5a may be easily formed. This is advantageous in that durability is guaranteed.

On the other hand, in the slide member 5, it is preferable that the slidability of the flat guide surface 1c of the guide member 1 is ensured. A sliding member made of Teflon or the like is disposed on one of the lower surfaces (not shown) of the slide member 5 that slides on the slide member 5, or between the guide surface 1 c of the guide member 1 and the lower surface of the slide member 5. It is preferable that a bearing member made of a steel ball, a needle, or the like is provided.

As described above, the slide member 5 connects the processing roller 2 described later via the rotary shaft 3 so as to enable relative displacement of at least the cylinder body C in the radial direction. However, for this purpose, a pair of scanning guide holes 1 having an appropriate length and shape set to the same shape are used.
It has 0.

To explain a little, this slide member 5
In the illustrated embodiment, as shown in FIG. 2, each of the rising portions 5b is formed to have a square U-shaped cross-sectional shape having a pair of rising portions 5b and an upper end opening. It has a copying guide hole 10.

The scanning guide hole 10 is formed so that both ends of the rotating shaft 3 that supports the processing roller 2 are slidably movable, respectively. One end of the hole 10 at the left end in FIG. 1 is positioned at a protruding position away from the lower guide member 1 in the radial direction of the cylinder body C, whereas the other end at the right end in FIG. It is positioned at a retracted position approaching the guide member 1 in the direction.

In the illustrated embodiment, the copying guide hole 10 has an inclined portion 10a of an appropriate length between a projecting position at one end and a retreating position at the other end.

Therefore, in the copying guide hole 10, as shown in FIG. 1, when the rotating shaft 3 is positioned and held at one end of the copying guide hole 10 by the operating rod 4, the processing roller 2 is raised to the highest position. The position is held at the most protruding position.

In the scanning guide hole 10, as shown in FIG. 3, when the rotary shaft 3 is positioned and held on the inclined portion 10a of the scanning guide hole 10 by the operating rod 4, the processing roller 2 is moved to the intermediate position. In addition, as shown in FIG. 4, when the rotary shaft 3 is positioned and held at the other end of the scanning guide hole 10 by the operating rod 4, as shown in FIG. It will be positioned and held at the barrel storage position.

The sliding member 5 has an operating portion 5 whose base end (not shown) projects out of the cylinder body C.
The leading end of the operating member 5c is integrally connected (see FIG. 1), and the slide member 5, the processing roller 2 and the operating rod 4 are integrally formed on the guide member 1 by the external force of pushing and pulling through the operating portion 5c. Is set to slide.

The processing roller 2 connected to the slide member 5, that is, the copying guide hole 10 via the rotating shaft 3.
Is a processing roller 2 as a conventional example described above (see FIG. 9).
Similarly to the above, it is formed in a so-called abacus ball shape (see FIG. 2), and when rotating around the rotating shaft 3, that is, when rolling, the orbiting tip 2a of the cylinder body C A linear groove C having a corresponding cross-sectional shape is formed on the peripheral surface.
1 is formed.

When the processing roller 2 is maintained at the highest position, the tip 2a of the processing roller 2 bulges the inner peripheral surface of the cylinder body C to the outer diameter side by a predetermined dimension. Of course, it is set to.

A rotating shaft 3 for supporting the processing roller 2
Is connected to a so-called bifurcated tip portion 4a of the operating rod 4 from which a base operating portion (not shown) projects outside the cylinder body C.

The distal end portion 4a of the operation rod 4 is held between the pair of rising portions 5b of the slide member 5 while the copying guide hole 10 is held.
Are movably combined along.

The operating rod 4 connected to the rotating shaft 3 and the operating portion 5c connected to the slide member 5 are set so as to be so-called "hand-drawn" as shown in the figure. Needless to say, it may be arranged in a manner opposite to that shown in the figure so as to be set so as to be so-called pushable.

Therefore, in the grooving device according to this embodiment formed as described above, it is a matter of course that the processing roller 2 is set to have a predetermined dimension. However, as shown in FIG. 1, the inner peripheral surface of the cylinder body C is swelled to the outer diameter side to the maximum by the processing roller 2 held at the highest position. Is rolled along with the movement of the slide member 5 on the guide member 1, so that a linear groove C having a predetermined maximum depth is formed on the inner peripheral surface of the cylinder body C.
1 will be formed.

Then, through the rotary shaft 3, the processing roller 2 is moved by the external force acting on the operation rod 4 to follow the guide hole 1.
When the cylinder C is gradually lowered along the inclined portion 10a, the degree of bulging of the inner peripheral surface of the cylinder body C toward the outer diameter side can be gradually reduced, and the depth of the groove C1 is set to its maximum depth. To gradually become shallower (see FIG. 3).

Further, when the processing roller 2 is held at the lowest position along the copying guide hole 10 by an external force acting on the operating rod 4, the point 2a of the processing roller 2 is removed from the inner peripheral surface of the cylinder C. Thus, the groove C1 can be stopped from being formed on the inner peripheral surface of the cylinder body C (see FIG. 4).

Therefore, for example, as shown in FIG. 1, when the slide member 5 is moved to the right in FIG. 1 when the processing roller 2 is at the highest position, a length corresponding to the amount of movement is required. A linear groove C1 having the maximum depth can be formed.

Then, the processing roller 2 is moved along the guide hole 10.
While gradually descending along the inclined portion 10a of
In addition, when the slide member 5 is also moved to the right in FIG. 1, when the processing roller 2 is only moved down along the inclined portion 10 a of the copying guide hole 10 without moving the slide member 5, In comparison, the stroke of the variable portion of the depth of the groove C1 is made longer so that the linear groove C1 can be gradually reduced from its maximum depth in a gentler inclined state.

Further, by appropriately combining the rolling of the processing roller 2 and the movement of the slide member 5, the grooves C1 having various depths and lengths can be formed in the cylinder body C1.
Can also be formed on the inner peripheral surface of the.

For example, the slide member 5 is moved from the state shown in FIG.
When the slide member 5 is moved to the left side in the drawing above, that is, when the slide member 5 is so-called relatively moved with respect to the processing roller 2, the processing roller 2 is lowered along the copying guide 10 on the spot. As a result, although not shown, a groove C1 having a constant depth is formed to a desired length.

As described above, in the grooving apparatus according to the present invention, unlike the above-mentioned conventional grooving apparatus, the processing roller 2 is configured to directly roll on the guide member 1. Therefore, there is no fear of interference with the guide member 1 accompanying the rolling of the processing roller 2, and, of course, smooth rolling of the processing roller 2 is guaranteed.
For example, undue wear of the processing roller 2 can be avoided and durability can be improved.

At this time, since the operating rod 4 is connected to the processing roller 2, the operating rod 4 is freely held at a predetermined projecting position by either the pushing operation or the pulling operation. It becomes possible.

In this groove processing apparatus, the processing roller 2 is held by a slide member 5, and the slide member 5 is slidably movable on a flat guide surface 1c of the guide member 1. Simplifies the configuration,
Although not shown, for example, the sliding member holding the processing roller 2 is set to be movable with respect to a cam surface serving as a follow-up guide surface of a guide member via a rolling roller serving as an auxiliary roller, and As compared with the case of ensuring, the number of members can be reduced by eliminating the need for rolling rollers, and in consideration of the actual inner diameter of the cylinder body C,
It is also advantageous in that it can be made compact and easily realized.

At this time, the slide member 5 is
Are continuously provided, and the operation section 5c is pushed and the groove C
A free external force action for one length can be performed.

Further, since the slide member 5 is set so as to slide without eccentricity with respect to the guide member 1, the slide member 5 is moved on the guide member 1 in a predetermined manner by a predetermined external force acting on the operation portion 5c. Can be moved.

In this groove processing apparatus, when the processing roller 2 is displaced in the radial direction of the cylinder body C when rolling to form grooves C1 having different depths, the above-described conventional example is used. Not only when the processing roller 2 is directly rolled on the guide member 1 as described above, but also when the processing roller 2 is set to be movable with respect to the cam surface of the guide member via the rolling roller as described above, 1 is set as a direct copying die, when forming and processing a desired groove C1, a guide member that becomes a copying die conforming to the groove shape is required, and various kinds of guide members are prepared. Have to do it.

On the other hand, in the present invention, the processing roller 2 is set via the rotating shaft 3, but is set to be arbitrarily movable along a copying guide hole 10 formed in the slide member 5. Since the slide member 5 is only slidable with respect to the flat guide surface 1c of the guide member 1, the operation of projecting the processing roller 2 and the operation of moving the slide member 5 are appropriately selected. By combining them, it is possible to freely form the grooves C1 in various modes, so that only one guide member 1 is required.

That is, simply by moving and holding the processing roller 2 along the scanning guide hole 10 or by moving the slide member 5 while moving the processing roller 2, the depth based on the position of the processing roller 2 in the copying guide hole 10 is obtained. Groove C1 can be formed and processed to the length of the stroke of the slide member 5.

Then, the processing roller 2 is moved to the copying guide hole 10.
By moving the slide member 5 while moving along, the depth of the variable portion can be formed into a groove C1 having a desired length while freely changing the depth.

According to the above description, the processing roller 2 is provided with the scanning guide hole 10 formed in the slide member 5 via the rotary shaft 3.
If it is set so as to be operable at least in the radial direction of the cylinder body C so as to be operable.

Therefore, as shown in FIG. 5, for example, as shown in FIG. 5, the copying guide hole 10 is formed so as to extend in the vertical direction, and furthermore, the processing roller 2 is set at the projecting position which is the highest position. And the other end capable of maintaining the processing roller 2 at the retreat position, which is the lowest position, may be set so as not to have the above-described inclined portion 10a. Become.

However, when the scanning guide hole 10 is set to have only two positions, that is, a so-called projecting position and a retracted position, it is quite difficult to form the groove C1 having an intermediate depth.

Therefore, the scanning guide hole 10 basically has an inclined portion 10a of an appropriate length between one end which is a protruding position and the other end which is a retreating position, as shown in FIG. If it is obvious that the groove C1 having the maximum depth is provided at a constant size, as shown in FIG. It would be preferable to do so.

In the case where the operating portion 5c connected to the slide member 5 is set to be pushable instead of, for example, as described above, FIG.
As shown in (1), the shape of the scanning guide hole 10 may be set to be opposite to the above-described one, so that the holding force of the processing position may be reduced.

It should be noted that, as described above, the projecting position is determined by operating the processing roller 2 via the operation rod 4, and the slide member 5 is moved via the operation section 5c.
That is, although the processing roller 2 or the slide member 5 is set to the moving side, the same operation and effect can be obtained by setting the cylinder body C side, which is the guide member 1 side, to the moving side instead. It is.

[0072]

As described above, according to the present invention, since the processing roller does not directly roll on the guide member, there is no interference with the guide member accompanying the rolling of the processing roller. Not only smooth rolling of the processing roller is guaranteed, but also, for example, undue wear of the processing roller can be avoided and durability can be improved.

Further, according to the present invention, the processing roller is held by the slide member so as to be freely displaceable in the radial direction of the cylinder body, and the slide member slides on the flat guide surface of the guide member. Therefore, the configuration for ensuring smooth rolling of the processing roller is simplified, and, for example, the sliding member holding the processing roller is moved to the cam surface as the copying guide surface of the guide member via the rolling roller as the auxiliary roller. In addition to the fact that the number of members can be reduced as compared to the case where it is set to be movable on the other hand, it is possible to make it compact and easy to realize, taking into account the actual inner diameter of the cylinder body. Become.

When the processing roller is rolled and relatively displaced in the radial direction of the cylinder body to form grooves having different depths, for example, when the processing roller is directly rolled on the guide member, Of course, even when the guide member is set to be movable with respect to the cam surface of the guide member via the rolling roller, when the guide member is directly set as the copying type, when forming various desired grooves, A variety of guide members are required to be shaped in accordance with the various processing shapes, and it is necessary to prepare a variety of guide members as the shaped molds. Although it is set via a shaft, it is set to be movable along a scanning guide hole formed in the slide member, and the slide member moves relative to a flat guide surface of the guide member. Since there is a potential, thus capable of forming machining grooves of the various aspects of the operation of moving the projecting operation and the slide member by combining suitably selected in the processing roller.

That is, when the processing roller is moved along the copying guide hole, a groove conforming to the copying guide hole can be formed. When the slide member is moved while the movement of the processing roller is stopped, A groove having a depth based on the position of the processing roller in the copying guide hole can be formed to the length of the stroke of the slide member, and when moving the processing roller along the copying guide hole, the slide member is also moved. A groove having a desired length of the variable portion while freely changing the length can be freely formed.

As a result, according to the present invention, a smooth rolling state of the processing roller can be realized permanently, and it is optimal for forming a set linear groove on the inner peripheral surface of the cylinder body. Furthermore, in the realization, compared to the conventional proposals, it is possible to reduce the size, to use more common parts and reduce the number of parts, to reduce the cost and improve the versatility. There are a number of advantages, such as being the best to expect.

[Brief description of the drawings]

FIG. 1 is a partial longitudinal sectional view showing a use state of a grooving device according to an embodiment of the present invention.

FIG. 2 is a longitudinal sectional view taken along line YY in FIG.

FIG. 3 is a view showing a state in which a processing roller is lowered to an intermediate position with respect to a slide member, similarly to FIG. 1;

FIG. 4 is a view showing a state in which a processing roller is lowered to the slide member most similarly to FIG. 1;

FIG. 5 is a diagram illustrating a copying guide hole according to another embodiment together with a rotation shaft and a processing roller.

FIG. 6 is a view showing a copying guide hole according to still another embodiment, similarly to FIG. 5;

FIG. 7 is a view showing a use state of a groove machining apparatus according to another embodiment of the present invention, similarly to FIG. 1;

FIG. 8 is a view showing the state of use of a conventional groove processing apparatus as in FIG. 1;

FIG. 9 is a longitudinal sectional view taken along line YY in FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Guide member 1b Left-right movement regulation groove 1c Guide surface 2 Processing roller 2a Point 3 Rotation shaft 4 Operation rod 4a Tip 5 Slide member 5a Projection 5b Rise 5c Operation 10 Copying guide hole 10a Inclined portion 10b Flat portion C Cylinder body C1 groove

Claims (3)

[Claims] A guide member which is inserted and mounted in the cylinder body and has a flat guide surface along the axial direction of the cylinder body; and a guide member which is mounted on the guide surface of the guide member and is moved in the axial direction of the cylinder body by the action of an external force. A movable slide member, a processing roller connected to the slide member via a rotation shaft and supported so as to be capable of at least a relative displacement in a radial direction of the cylinder body, and a rotation shaft supporting the processing roller A tip end portion of which is connected to the cylinder, and a base end operation portion having an operation rod extending outside the cylinder body. 2. A pair of scanning guide holes each having an appropriate length for inserting both ends of a rotating shaft that supports a processing roller through a slide member, and one end of the pair of scanning guide holes is formed by a guide member. The groove processing apparatus according to claim 1, wherein the other end is positioned so as to approach the guide member while being positioned away from the groove. 3. The guide member has a left-right movement regulating groove in the center of the guide surface along the axial direction of the cylinder body, and slides a projection projecting from a lower end of the slide member into the left-right movement restriction groove. 2. The groove processing apparatus according to claim 1, wherein the groove processing apparatus is fitted as possible.