JP3237262U - Sharpening machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To guarantee a highly accurate dressing depth regardless of the hardness of a work material, a spring force adjusting skill, and a pulley replacement / belt tension adjusting work when changing a dressing pitch. The challenge is to provide a sharpening machine that does not require pitch changing skills. SOLUTION: This is a sharpening machine for continuously sharpening by hitting a chisel from above into a work fixed to a moving work mount, and linearly moving a rotary shaft connected to a drive motor in a vertical direction. With a rotary motion conversion mechanism that converts to The problem was solved by a sharpening machine equipped with an X-axis feed means that can change the feed speed in the X-axis direction of the work mount connected to the nut screwed into the ball screw according to the feed distance of the work mount. .. [Selection diagram] Fig. 1

Description

There is an application for application of Article 30, Paragraph 2 of the Patent Act, which is applied mutatis mutandis in Article 11 of the Practical New Plan Act. (12-20 Nigatanishigamicho, Kure City, Hiroshima Prefecture) [Publisher] Kimura Co., Ltd. (3-4-9 Hirotagaya, Kure City, Hiroshima Prefecture) Wataoka Co., Ltd. [Contents of items sold or distributed] Actual application 2022- A spear sharpening machine that incorporates the device described in 000281.

The present invention relates to a sharpening machine for sharpening a work such as tool steel.

As a product processed by a sharpening machine, for example, there is a file. As shown in FIGS. 7 and 8, the grinder sharpening machine currently in use feeds a work made of tool steel or the like at the same speed in one direction, and rotates a swing cam with respect to the work to obtain a balance rod. One end is swung up and down and the other end is swung up and down in the opposite direction by the fulcrum, and at the next moment when the other end reaches the rising end, the chisel is lowered at once by the force of the spring to sharpen it. A sharpener is commonly used. Further, the pulley that rotates the screw shaft of the ball screw that sends the work in the X-axis direction and the pulley that rotates the swing cam are connected to two pulleys attached to the rotary shaft of one motor by belts, respectively. It is configured so that one motor can move the work and raise and lower the chisel.

In Patent Document 1, a cam is brought into contact with the lower part of a lever supported by an intermediate support shaft, and a rack-shaped helical gear is provided at the upper part. In the half-round file sharpening device that transmits the motion to the file mount via the transmission device and sharpens the peripheral surface of the half-round file placed on the file mount, the gear and its shaft slip. Disclosed is a device for changing the sharpening position of a half-round file that can be fitted and provided with screw handles for fixing both.

Genuine New S51-11595 Gazette

The current file sharpener hits the chisel with the extension force of the spring, so when the spring deteriorates, the hitting force becomes weaker and the depth of the eyes becomes shallower or varies. In addition, the sharpening craftsman who notices that the spring has deteriorated adjusts to push the spring by turning the spring adjustment screw as shown in Fig. 8, but if this adjustment is not a skilled sharpening craftsman, it is stable and optimal. There was a problem that it was not possible to obtain the depth of the eyes and it was difficult to pass on this adjustment skill to the young craftsman who was the successor.

In addition, the current file sharpening machine uses one motor to rotate the work feed adjustment pulley that rotates the spline that moves the work and the cam adjustment pulley that rotates the cam that raises and lowers the chisel, so one sharpening machine. The chisel can only be hit at the pitch, for example, when changing the sharpening pitch from fine to coarse, the two pulleys must be replaced with pulleys of different diameters, and even a skilled sharpening craftsman will have to take time-consuming setup work. There was a problem that it was difficult to pass on the skill of this setup work to the young craftsman who was the successor.

In addition, since the chisel is driven by the urging force in the extension direction of the spring, the sharpening depth (surface roughness) becomes deep when the hardness of the work material is low, and the sharpening depth when the work material hardness is high. There was a problem that (surface roughness) became shallow. Furthermore, if the size of the work in plan view is larger than the width of the blade of the chisel, the striking force by the spring is dispersed and the sharpening depth (surface roughness) becomes shallow, and the size of the work in plan view is the width of the blade of the chisel. If it is smaller than that, there is a problem that the striking force by the spring is concentrated and the sharpening depth (surface roughness) becomes deep. That is, there is a problem that the sharpening depth (surface roughness) varies depending on the hardness and size of the material of the work.

The invention of Patent Document 1 is a technique for allowing a blade to be sharpened along an arcuate peripheral surface of a half-round file to move along an arcuate locus, and a spring is a sharpening force when the sharpening craftsman's chisel is driven in when it deteriorates. There was a problem that it was not a technique that made it easy to adjust, and it was not a technique that could make it easy to change the sharpening pitch.

The present invention was devised in view of these problems, and can guarantee a constant sharpening depth (surface roughness) determined with high accuracy regardless of the hardness or size of the work material, and the chisel when the spring deteriorates. It is an object of the present invention to provide a dressing machine that does not require a spring force adjusting skill for stabilizing the striking force of the machine and a dressing pitch changing skill such as a pulley replacement work when the dressing pitch is changed.

The dressing machine according to claim 1 is a dressing machine for continuously dressing by hitting a chisel from above into a work fixed to a moving work mount, and is a rotary motion of a rotating shaft connected to a drive motor. With a rotary motion conversion mechanism that converts An X-axis feed means capable of varying the feed rate in the X-axis direction of the work mount connected to a nut screwed into a ball screw rotated by a feed motor according to the feed distance of the work mount, and at least the above. It is characterized by being provided with a chisel elevating means and a control means for controlling the X-axis feed means.

The dressing machine according to claim 2 has the upper and lower ends of a circular eccentric cam, wherein the rotary motion conversion mechanism is eccentrically attached to the rotary shaft connected to the drive motor in claim 1. The slider plate is characterized in that it is constantly in contact with the upper and lower linear peripheral edges of the elongated holes provided on the slider plate, and the slider plate is moved up and down by the rotation of the rotation shaft.

In the dressing machine according to claim 3, in claim 1, the rotary motion conversion mechanism is rotatably provided on a first link fixed to the rotary shaft connected to the drive motor and a slider plate. The slider plate is rotatably connected to the second link by a joint, and the slider plate is moved up and down by the rotation of the rotation shaft.

The dressing machine according to claim 4 is provided with a rotating means having a work rotary table that rotates on an XY axis surface inside the work mounting table in a plan view according to any one of claims 1 to 3. However, it is characterized in that the rotation speed of the work turntable can be changed according to the rotation angle of the work turntable.

The dressing machine according to claim 5 integrally moves the work turntable and the rotary means, and the work mount and the X-axis feed means in any one of claims 1 to 4 in the Y-axis direction. The Y-axis moving means is provided, and the controlling means controls the moving distance in the Y-axis direction by operating the Y-axis motor of the Y-axis moving means.

The dressing machine according to claim 6 adjusts the elevating cycle interval of the chisel of the chisel elevating means and the feeding speed of the work mounting base of the X-axis feeding means in any one of claims 1 to 5. It is characterized in that when the chisel rises, the tip end portion of the chisel is sharpened and controlled so as to rub the uppermost end.

The sharpening machine according to claim 1 is always determined with high accuracy regardless of whether the hardness of the material of the work is low or high, or whether the size of the plan view of the work is larger or smaller than the lower end of the chisel. It has the effect of guaranteeing a certain sharpening depth (surface roughness).

Then, a skilled sharpening craftsman possesses, for example, a spring force adjusting skill that stabilizes the tapping force of the chisel when the spring deteriorates, and a sharpening pitch changing skill such as replacing the pulley when changing the sharpening pitch. It is unnecessary, and the skill of a skilled sharpening craftsman is not required, a uniform tapping depth is realized, and the sharpening pitch can be changed.

In addition, the sharpening pitch of one file is not limited to the conventional shape with a fixed interval, but the sharpening pitch of one file, which is not conventional, is gradually widened or narrowed from one end to the other end. It has the effect of being able to perform sharpening processes that were extremely difficult to sharpen with conventional techniques, such as files with different sharpening pitches from approximately the center to both sides.

The dressing machine according to claim 2 has an effect that the length of raising and lowering the chisel can be reduced, and when the same X-axis feed rate is used, a dressing pitch smaller than that of other structures can be dressed. By adjusting the feed speed and the chisel elevating timing interval, it is possible to sharpen a small sharpening pitch and a large sharpening pitch.

Since the dressing machine according to claim 3 has a slider crank mechanism, it has the effect of being able to sharpen a dressing pitch larger than that of other structures when the same X-axis feed speed is used. By adjusting with the interval, it is possible to sharpen a small sharpening pitch and a large sharpening pitch.

The dressing machine according to claim 4 has an effect that it is possible to manufacture a file that is sharpened in a radial pattern because the work mounting base can be rotated.

The dressing machine according to claim 5 could not manufacture a wide file having a width close to twice that of the conventional one, but by allowing the work mounting base to move in the Y-axis direction, the wide file can be manufactured. It has the effect of being able to be manufactured.

The dressing machine according to claim 6 can control that the corner of the uppermost end of the protrusion formed during the dressing process is caught or rubbed with a chisel when ascending, and has an effect that a long life can be realized. Play.

It is a block diagram of the front view of the dressing machine of this invention. In order to explain the change of the tapping angle of the chisel, two chisel equipped with only one are described before and after the angle change. It is a block diagram of the left side view of the dressing machine of this invention. It is explanatory drawing of the dressing formation by tapping a chisel. The configuration explanatory diagram of the chisel elevating means, the left figure is an explanatory diagram of the ascending end, and the right figure is an explanatory diagram of the descending end, that is, at the time of tapping. It is explanatory drawing of the cross section A1-A1 and the cross section A2-A2 in FIG. It is a block diagram of an example of the rotation means internally installed in a work mount and a feed means for moving a work mount with a ball screw. It is a schematic explanatory view of the front view of the conventional dressing machine. It is explanatory drawing of the structure to affect the swing cam and the chisel raising and lowering of a conventional dressing machine. In the explanatory view of the example of the sharpening form of the file that can be formed by the present invention, (a) is an explanatory view of the file in which the sharpening pitch is different in the middle, and (b) is processed by moving in the Y-axis direction. An explanatory diagram of a wide range of files, (c) is an explanatory diagram of a file with radial sharpening only at the tip, and other files with double sharpening, and (d) is an explanation of a file with radial sharpening. It is a figure. It is an explanatory diagram of the conventional file dressing form that can be formed by the present invention, (a) is an explanatory diagram of a conventional single file with the same dressing pitch, and (b) is a conventional double file with the same dressing pitch. It is an explanatory diagram of. It is a block diagram when the rotary motion conversion mechanism is a slider crank mechanism. It is a state explanatory diagram after rotating the range on the downstream side from the rotational motion conversion mechanism.

In the file sharpening process, as shown in FIG. 3, the work 7 is sent in the X-axis direction X, and the chisel 9 repeatedly moves up and down in the ascending / descending direction K, so that the chisel 9 descends from the ascending / descending direction K to the work 7. When it is struck into 7, the chisel 9 is struck from the surface M of the work 7 to the bottom of the recess V, and the work 7 is fed in the X-axis direction X at a predetermined feed rate. The protrusion U is formed from the surface M by being turned over from the surface to the bottom of the recess V, and the sharpening depth (surface roughness) W is formed. Then, there is a problem that the corner of the uppermost end T of the protrusion U has a sharp shape. As described above, when the chisel 9 is tapped at a predetermined elevating cycle interval while feeding the work 7 in the X-axis direction X, the files 70 and 71 having a sharpening pitch P are manufactured.

As shown in FIGS. 7 and 8, the conventional dressing machine 80 includes a chisel elevating means 85 and an X-axis feeding means 90. The chisel elevating means 85 rotates a rotary shaft 91b via a pulley 82a, a belt 83a, and a pulley 82b attached to a rotary shaft 91a connected to a motor 81, and the rotation of the rotary shaft 91b causes a swing cam 86. By rotating, one end of the balance rod 88 whose substantially center is supported by the fulcrum 87 is swung in the vertical direction, and the other end is swung in the vertical direction in the opposite direction. Then, at the next moment when the other end pushes up the piece 89 and reaches the rising end, the chisel 9 is lowered at once by the extension force of the spring 95 to perform the sharpening process.

The X-axis feeding means 90 rotates a ball screw 92 via a pulley 82c, a belt 83b, and a pulley 82d attached to a rotary shaft 91a connected to a motor 81, and a nut portion 93 screwed to the ball screw. The work mounting base 96 is fixed to the work mounting base 96, and the work mounting base 96 is moved in the X-axis direction X by the rotation of the motor 81.

In the conventional dressing machine 80 having the above structure, the chisel 9 is driven into the work 7 by the extension force of the spring 95, so that the dressing depth is different depending on whether the material of the work 7 has a low hardness or a high hardness. (Surface roughness) W is different and there is a problem of variation, and the sharpening depth (surface roughness) W is different when the size of the work 7 in plan view is larger than the width of the blade of the chisel 9 and when it is smaller. There was a problem.

Further, in the conventional dressing machine 80, while feeding the work 7 made of tool steel or the like at the same speed in one direction, when the spring 95 deteriorates, the spring adjusting handle 84 is turned to restore the extension force of the spring. Since the swing cam 86 is rotated and the ball screw of the X-axis feed is rotated by one motor 81, the chisel 9 is moved up and down when the sharpening pitch is changed from fine to coarse or from coarse to fine. Since the timing interval is changed and the X-axis feed rate of the work mounting base 8 is changed, the pulleys 82a, 83b, 82c and 82d must be changed to those having different diameters, and the tension of the belts 83a and 83b must be adjusted. Therefore, the skill of a skilled sharpener was indispensable.

Therefore, the dressing machine 1 of the present invention is mainly a machine for sharpening the files 70 and 71, and has the same sharpening depth regardless of the hardness of the material of the work 7 and the size of the work 7 with respect to the chisel 9 in a plan view. (Surface roughness) W can be sharpened, and when the spring 95 deteriorates, the skill for adjusting the extension force of the spring 95 to stabilize the tapping force of the chisel 9, and the pulleys with different diameters when the sharpening pitch is changed. It was developed for the purpose of eliminating the need for sharpening pitch changing skills such as replacement with 82 and tension adjustment of belt 83.

As shown in FIG. 1 or 2, the dressing machine 1 of the present invention is a dressing machine 1 for continuously tapping a chisel 9 into a work 7 fixed to a moving work mounting base 8 from above. , A chisel 9 is attached to the lower end by a rotary motion conversion mechanism 60 that converts the rotary motion of the rotary shaft 17b connected to the drive motor 11 into a linear motion in the vertical direction, and is moved up and down along the guide rails 12 arranged on the left and right. Feed in the X-axis direction of the work mounting base 8 connected to the chisel elevating means 2 for raising and lowering the slider plate 14 slidable in the direction and the nut portion 22 screwed into the ball screw 21 rotated by the X-axis feed motor 20. It includes an X-axis feeding means 3 whose speed can be changed according to a feeding distance of the work mounting base 8, and a control means 4 for controlling at least the chisel raising and lowering means 2 and the X-axis feeding means 3.

The work 7 is a work 7 that becomes a file 70 or 71 as shown in FIG. 9 or 10, for example, by sharpening, and is made of a material that becomes a file 70 or 71 such as tool steel. The files 70 and 71 include all types of files such as deburring, surface finishing, nail files, ingrown nail files, and thickened nail files.

As shown in FIGS. 1, 2, and 6, the work mounting table 8 is a table on which the work 7 is positioned, placed, and fixed, and a rotating means 5 having a work rotary table 32 inside is internally provided. are doing. The fixing means fixes the front and rear ends of the work 7 with an end fixing tool 23 such as a fastening means, and descends to the vicinity of the tapping position of the chisel 9 before the start of sharpening to press the work 7 during sharpening. The work 7 is fixed by the elevating fixture 24 that keeps the presser state while being fed in the X-axis direction in synchronization with the X-axis feed speed, rises after the sharpening is completed, and returns to the original position. Then, the work mounting base 8 is fed in the X-axis direction X by the X-axis feeding means 3.

The chisel 9 is attached to the lower end portion of the chisel elevating means 2, descends at a predetermined elevating timing interval, gives an impact to the work 7, and hits the work 7 in a predetermined direction X in the X-axis direction of the X-axis feeding means 3. By feeding at the feed speed, the predetermined sharpening pitch P is sharpened. As shown in FIG. 9 or 10, the file 9 is attached when the file 70 or 71 is used because the file 9 is attached so that the direction of the eyes of the file 70 or 71 is oblique to the X axis. Diagonal sharpening makes it easy to sharpen an object.

Next, the chisel elevating means 2 will be described. As shown in FIGS. 2, 4 and 5, the chisel elevating means 2 has a lower end by a rotary motion conversion mechanism 60 that converts the rotary motion of the rotary shaft 17b connected to the drive motor 11 into a linear motion in the vertical direction. A chisel 9 is attached to the door, and a slider plate 14 slidable in the vertical direction is raised and lowered along the guide rails 12 arranged on the left and right sides.

The rotational motion conversion mechanism 60 includes, for example, a rotational motion conversion mechanism 60a having an eccentric cam 10 as a component and a slider crank mechanism as a component as shown in FIG. 11; There is a motion conversion mechanism 60b. The rotational motion conversion mechanism 60a is suitable when the ascending / descending distance of the chisel 9 is short, and the rotational motion conversion mechanism 60b is suitable when the ascending / descending distance of the chisel 9 is long.

In the rotary motion conversion mechanism 60a, the upper and lower ends of a circular eccentric cam 10 eccentrically attached to the rotary shaft 17b connected to the drive motor 11 are opposed to an elongated hole 19 provided in the slider plate 14. It has a form in which the slider plate 14 is moved up and down by the rotation of the rotating shaft 17b so as to be in constant contact with the upper and lower linear peripheral edges.

As shown in FIG. 2, when the drive motor 11 is driven, the rotating shaft 17a rotates, the rotation is transmitted to the rotating shaft 17b by the belt 18, and the axis and the center are eccentric to the rotating shaft 17b to form a circle. The plate-shaped eccentric cam 10 is fixed. Then, the upper end and the lower end of the eccentric cam 10 are always in contact with the upper peripheral surface and the lower peripheral surface of the elongated hole 19 having parallel and parallel facing peripheral surfaces perpendicular to the axial center of the rotating shaft 17b. It is configured to do.

The slider plate 14 provided with the elongated hole 19 is slidably mounted on the guide rail 12 in the vertical direction at both ends in the left-right direction, and the chisel 9 is detachably fixed to the lower end portion. Then, the slider plate 14 reciprocates in the vertical direction along the guide rail 12 due to the rotation of the drive motor 11, and the chisel 9 is repeatedly hit into the work 7.

The elevating distance H of the chisel 9 is the same as the eccentric distance between the axis of the rotating shaft 17b and the center of the eccentric cam 10. Further, the eccentric cam 10 is rotated by a drive motor 11 connected only to the eccentric cam 10, and the pulley 82 is not replaced with a different diameter or the belt 83 is not adjusted as in the conventional case. The control means 4 can freely change the ascending / descending timing interval of the chisel 9, and for example, fine or coarse sharpening can be made freely by changing the setting of the rotation speed of the eccentric cam rotation motor 11.

As shown in FIG. 11, the rotational motion conversion mechanism 60b is rotatably provided on the slider plate 14 with a first link 75 fixed to the rotary shaft 17b connected to the drive motor 11 by a joint 78. It is a slider crank mechanism having a form in which the second link 76 is rotatably connected by a joint 77 and the slider plate 14 is moved up and down by the rotation of the rotating shaft 17b.

As shown in FIGS. 2 and 11, when the drive motor 11 is driven, the rotary shaft 17a rotates, and the rotation is transmitted to the rotary shaft 17b by the belt 18, and one end of the first link 75 is attached to the rotary shaft 17b. It is fixed and rotates by the rotation of the rotating shaft 17b. The other end of the second link 76, one end of which is rotatably connected to the slider plate 14 by the joint 78, is rotatably connected to the other end of the first link 75 by the joint 77.

Then, the slider plate 14 reciprocates in the vertical direction along the guide rail 12 due to the rotation of the drive motor 11, and the chisel 9 is repeatedly hit into the work 7. Further, the ascending / descending distance of the chisel 9 is the same as the diameter of the locus of the circle drawn by the joint 77 of the first link 75 that rotates about the axis of the rotating shaft 17b.

As shown in FIGS. 7 and 8, the conventional dressing machine 80 is driven by the extension force of the spring 95, so that the dressing depth (surface roughness) W is used depending on whether the material of the work 7 has a low hardness or a high hardness. The sharpening depth (surface roughness) W varies depending on whether the size of the work 7 is large or small with respect to the size of the chisel 9 in a plan view, or when the spring 95 deteriorates, the sharpening depth (surface) Roughness) W became shallow, and when adjusting with the spring adjustment handle 84, trial tapping was repeated to adjust, but the sharpening machine 1 of the present invention constitutes an eccentric cam 10 as shown in FIGS. 4 and 5. Since the chisel 9 is mechanically driven by the rotational motion conversion mechanism 60a as an element or the rotational motion conversion mechanism 60b having a slider crank mechanism as a component as shown in FIG. 11, the sharpening depth (surface roughness) W Has the effect of high accuracy, no variation, and stability over a long period of time.

In addition, the tapping angle of the chisel 9 can be changed. As shown in FIGS. 1, 4 or 12, the base base 61 to which the guide rail 12 or the like is fixed is rotated along the arcuate guide slot 62 by loosening the tapping angle changing bolt 13 and rotating the base base 61, for example. As shown in FIG. 12, the tapping angle with respect to the work 7 can be changed by rotating the base base 61 and tightening the tapping angle changing bolt 13 again. As shown in FIG. 1, as an example, a chisel with only one is intentionally attached so that the angle change can be easily understood, and a chisel at the position before the hitting angle change and a chisel at the position after the hitting angle change. Two are described and the angle change range is indicated by an arrow.

Next, the X-axis feed means 3 will be described. The X-axis feeding means 3 sets the feeding speed of the work mounting base 8 connected to the nut portion 22 screwed into the ball screw 21 rotated by the X-axis feeding motor 20 in the X-axis direction to the work mounting base 8. It can be changed according to the feed distance. Then, as shown in FIG. 6, the X-axis feeding means 3 moves the work mounting base 8 in which the rotating means 5 is installed in the X-axis direction X.

As shown in FIGS. 1, 2 and 6, in the X-axis feeding means 3, when the X-axis feeding motor 20 rotates, the rotational force thereof is transmitted to the ball screw 21 via the belt 25, and the ball screw 21 The work mounting base 8 is fed by the nut portion 22 screwed to and fixed to the work mounting base 8 moving in the X-axis direction X. The rotation speed of the X-axis feed motor 20 can be controlled by the control means 4, and the feed speed can be changed for each feed distance in the X-axis direction X.

Next, the rotation means 5 will be described. The dressing machine 1 of the present invention is provided with a rotating means 5 provided with a work rotary table 32 that rotates on the XY axis surface inside the work mounting table 8 in a plan view, and as shown in FIG. 6, the work is provided in a plan view. A work rotary table 32 rotatably installed on the XY axis surface is provided inside the mounting table 8. When the rotary motor 31 operates, the rotational force of the rotating means 5 is transmitted from the gear 33 to the gear 34, the shaft 36 fixed to the gear 34 rotates, and the work turntable 32 connected to the bearing 35 Rotate. The control means 4 can also change the rotation speed of the work rotary table 32 according to the rotation angle of the work rotary table 32.

Next, the Y-axis moving means 6 will be described. The Y-axis moving means 6 integrally moves the work rotating table 32 and the rotating means 5, the work mounting table 8 and the X-axis feeding means 3 in the Y-axis direction, and the control means 4 obtains. The movement distance in the Y-axis direction is controlled by the operation of the Y-axis motor 40 of the Y-axis moving means 6.

As shown in FIG. 1 or 2, the Y-axis moving means 6 is provided with an X-axis feeding means 3 or the like, when the Y-axis motor 40 is operated, the rotational force thereof is transmitted to the ball screw 42 via the belt 41. The nut portion 43 fixed to the base base 26 and screwed into the ball screw 42 moves in the Y-axis direction Y, so that the base base 26 moves in the Y-axis direction Y.

As described above, in the dressing machine 1 of the present invention, a dedicated drive motor 11 is provided in the chisel elevating means 2 for raising and lowering the chisel, and the X-axis feeding means 3 for feeding the work 7 in the X-axis direction is provided. Disposes a dedicated X-axis feed motor 20 and disposes a dedicated rotation motor 31 in the rotating means 5 for horizontally rotating the work 7, and Y-axis moving means for moving the work 7 in the Y-axis direction. A dedicated Y-axis motor 40 is arranged in 6.

Next, the control means 4 will be described. As shown in FIGS. 1, 2, or 6, the control means 4 is connected to the operation panel 55 by wiring 50e, is connected to the drive motor 11 by wiring 50a, and is connected to the X-axis feed motor 20 by wiring 50b. It is connected to the rotary motor 31 by the wiring 50c, and is connected to the Y-axis motor 40 by the wiring 50d.

The control means 4 includes a control unit in which a sharpening program is installed, and the control means 4 can change the elevating cycle interval of the chisel 9 of the chisel elevating means 2 by controlling the drive motor 11. The X-axis feed speed of the work mount 8 can be changed by controlling the X-axis feed motor 20, and the rotation speed of the work turntable 32 can be changed by controlling the rotation motor 31. The movement distance in the Y-axis direction can be changed by controlling the Y-axis motor 40.

Further, the control means 4 adjusts the elevating cycle interval of the chisel 9 of the chisel elevating means 2 and the feeding speed of the work mounting base 8 of the X-axis feeding means 3 when the chisel 9 is raised. It can be controlled so that the tip portion rubs the sharpening uppermost end T.

The operation panel 55 has a time display and setting means for the ascending / descending cycle interval, an X-axis feed speed / direction display and setting means, a Y-axis movement distance / direction display and setting means, and a rotation speed / rotation of the work turntable 32. It is equipped with a direction display and setting means, a power button, an operation start button, and the like.

The control means 4 controls at least the rotational speeds of the drive motor 11 and the X-axis feed motor 20. For example, in the case of finely sharpening, the rotation speed of the drive motor 11 is increased, or in the case of coarsely sharpening, the rotation speed of the X-axis feed motor 20 is decreased, and in the case of coarsely sharpening, the rotation speed of the drive motor 11. It is controlled to slow down or increase the rotation speed of the X-axis feed motor 20.

Further, the X-axis feed speed can be controlled to be changed according to the feed distance in the X-axis direction. For example, conventionally, a single file 71a having the same sharpening pitch P as shown in FIG. , Only the file 71b with the same dressing pitch P could be machined as shown in FIG. 10 (b), but in the dressing machine 1 of the present invention, as shown in the file 70a of FIG. 9 (a). At first, fine sharpening was performed, and it became possible to make coarse sharpening from the set feed distance in the X-axis direction X.

Then, the control means 4 can variably set the rotation speed of the work rotary table 32 according to the rotation angle of the work rotary table 32. By using the rotating means 5, for example, a file 70c having a double sharpened portion and a radial sharpened portion as shown in FIG. 9 (c), or a radius as shown in FIG. 9 (d). It has become possible to manufacture a file 70d with a sharpened direction.

The control means 4 operates the Y-axis motor 40 according to a set distance. As a result, for example, in the past, it was not possible to sharpen a wide file, but after forming one row of sharpening with the chisel 9, the Y-axis direction is moved by a predetermined distance, and then another row of chisel 9 is used. By forming the sharpening of the file, it became possible to manufacture a wide file 70b as shown in FIG. 10 (b).

Next, how to use it will be described. First, as shown in FIG. 1, the work 7 is positioned and placed on the work mounting base 8, and the front and rear ends are fixed in the X-axis direction with an end fixing tool 23 such as a bolt / nut fastening means.

Next, the power button of the operation panel 55 is pressed, and by the setting means (not shown) of the operation panel 55, for example, the X-axis feed rate is set to a fine sharpening pitch P of, for example, 100 mm from the start point according to the feed distance in the X-axis direction. The feed distance and the feed rate in the X-axis direction are set while observing the numerical value of the display means (not shown) with a coarse sharpening pitch P between more than 100 mm and 200 mm. Then, the time of the elevating cycle interval is set while being confirmed by the display means.

Then, by pressing the operation start button on the operation panel 55, the X-axis feed motor 20 is driven according to the setting instruction from the control means 4, and the work mounting base 8 is fed in the X-axis direction at the same time. The drive motor 11 is driven, and the chisel 9 is driven into the work 7 to form a sharpening, and the files 70 and 71 are manufactured.

1
Sharpening machine 2 Gear lifting means 3 X-axis feeding means 4 Control means 5 Rotating means 6 Y-axis moving means 7 Work 8 Work mounting base 9 Gear 10 Eccentric cam 11 Drive motor 12 Guide rail 13 Driving angle changing bolt 14 Slider plate 15 Regulation Guide hole 17 Rotating shaft 18 Belt 19 Long hole 20 X-axis feed motor 21 Ball screw 22 Nut part 23 End fixture 24 Lifting fixture 25 Belt 26 Base base 31 Rotating motor 32 Work rotating base 33 Gear 34 Gear 35 Bearing 36 Shaft 40 Y-axis Motor 41 Belt 42 Ball screw 43 Nut part 50 Wiring 52 Regulation guide 55 Operation panel 60 Rotational motion conversion mechanism 61 Base base 62 Guide slot 70 Thread 71 Gear 75 First link 76 Second link 77 Joint 78 Joint 80 Sharpener 81 Motor 82 Pulley 83 Belt 84 Spring adjustment handle 85 Chisel elevating means 86 Swing cam 87 Supporting point 88 Balance bar 89 Frame 90 X-axis feeding means 91 Rotating shaft 92 Ball screw 93 Nut part 95 Spring
96 Work mount
H Ascending / descending distance K Ascending / descending direction M Surface P Sharpening pitch T Upper end U Swelling V Recession W Sharpening depth (surface roughness)
X-axis direction Y Y-axis direction

The dressing machine according to claim 5 is the Y-axis moving means for integrally moving the work turntable and the rotating means, and the work mounting base and the X-axis feeding means in the Y-axis direction in the fourth aspect. The control means is characterized in that the movement distance in the Y-axis direction is controlled by the operation of the Y-axis motor of the Y-axis movement means.

Claims (6)

It is a sharpening machine that continuously sharpens by tapping a chisel from above into a work fixed to a moving work mounting base.
A slider that can slide up and down along the guide rails arranged on the left and right with a chisel attached to the lower end by a rotary motion conversion mechanism that converts the rotary motion of the rotary axis connected to the drive motor into a linear motion in the vertical direction. A chisel raising and lowering means for raising and lowering the board,
An X-axis feed means capable of varying the feed rate in the X-axis direction of the work mount connected to a nut screwed into a ball screw rotated by an X-axis feed motor according to the feed distance of the work mount.
A sharpening machine comprising at least the chisel elevating means and the control means for controlling the X-axis feed means. The rotational motion conversion mechanism
The upper and lower ends of the circular eccentric cam attached eccentrically to the rotating shaft connected to the drive motor are always in contact with the upper and lower linear peripheral edges of the elongated holes provided in the slider plate. The dressing machine according to claim 1, wherein the slider plate is moved up and down by rotation of the rotating shaft. The rotational motion conversion mechanism
The first link fixed to the rotating shaft connected to the drive motor and the second link rotatably provided on the slider plate are rotatably connected by a joint, and the slider plate is rotated by the rotation of the rotating shaft. The dressing machine according to claim 1, wherein the dressing machine is made to move up and down. A rotating means provided with a work rotary table that rotates on the XY axis is provided inside the work mounting table in a plan view, and the control means measures the rotation speed of the work rotary table according to the rotation angle of the work rotary table. The dressing machine according to any one of claims 1 to 3, wherein the control is variable. A Y-axis moving means for integrally moving the work rotary table and the rotating means, and the work mounting base and the X-axis feeding means in the Y-axis direction is provided.
The dressing machine according to any one of claims 1 to 4, wherein the control means controls a moving distance in the Y-axis direction by operating a Y-axis motor of the Y-axis moving means. The adjustment between the raising and lowering cycle interval of the chisel of the chisel raising and lowering means and the feeding speed of the work mounting base of the X-axis feeding means is controlled so that the tip of the chisel sharpens and rubs the uppermost end when the chisel is raised. The dressing machine according to any one of claims 1 to 5, wherein the dressing machine is characterized by the above.

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