JPS6234720A - Gear cutting machine - Google Patents

Abstract

PURPOSE:To enable a machine to efficiently perform both gear cutting and removal of a burr, generated in a work, in a single process, by providing a burr removing tool to be arranged in one side surface of the work when its gear cutting is performed. CONSTITUTION:A starting switch is turned on, and a machine, synchronously rotating a hob 18 in the clockwise direction further a rotary table 20 in the counterclockwise direction while feeding upward a hob head 16 by a feeder in every predetermined distance, performs gear cutting on the side surface of a work 31 similarly in the order of works 31-29. Further the machine, simultaneously with the gear cutting of each work 20-31, removes a burr, generated in the bottom side surface of each work 29-31, by adapting the work, when it is turned about 180 deg. by the rotary table 20 for the position of gear cutting, to an edge point 60 of a tool 62. Next the machine finishes gear cutting of the work 29 and its burr removal, and if the hob saddle 16 reaches a predetermined position, the machine, actuating a limit switch, stops a motor. In this way, the machine efficiently performs both gear cutting and burr removal in a single process.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a gear cutting device that performs gear cutting on a workpiece by relatively moving a gear cutting tool toward the workpiece.

[Prior Art] Conventionally, this type of gear cutting device includes a rotary table rotatably supported on a separate frame and on which at least one workpiece is placed, and a rotary table for performing gear cutting on the workpiece. a tool holding member that rotatably supports the gear cutting tool; and a rotary drive machine disposed within the machine frame that rotationally drives the rotary table and the gear cutting tool in synchronization, and the gear cutting tool Because burrs are generated on one side of the workpiece when machining the workpiece, burrs are generated on the workpiece by another device such as a spool or a belt sander. The burrs were removed.

[Problems to be solved by the invention] As mentioned above, in the case where a separate device is used to remove burrs formed on the workpiece after gear cutting, the number of machining steps is large. There were problems such as poor efficiency.

[Object of the Invention] The present invention solves the above-mentioned problems, and provides a tooth that can efficiently perform gear cutting on a workpiece in a single process and remove burrs formed on the workpiece. The purpose is to provide cutting equipment.

[Means for Solving the Problems] In order to achieve the above object, the present invention provides a deburring tool for removing burrs generated on one side of a workpiece during gear cutting of the workpiece. is arranged on the one side of the workpiece.

[Function] With the above-described configuration, when the gear cutting tool is relatively moved toward the workpiece after the rotation drive is activated, the workpiece is continuously machined by gear cutting and the burr is removed. The burrs generated on one side of the workpiece are simultaneously removed by the cutting tool, and the workpiece is efficiently machined.

[Example] An example embodying the present invention will be described below with reference to the drawings.

As shown in FIG. 1, the gear cutting device includes a column 12 that stands upright on the left end of a bed 10, and a column 12 that extends in a direction perpendicular to the top surface of the bed 10 on the right side of the column 12. An extending guide 14 is provided. The guide 1
4 includes a motor (not shown) disposed within the column 12.
A hob saddle 16 connected to the hob saddle 16 via a gear (not shown)
is supported so that it can move vertically. Further, on one side of the hob saddle 16, a cylindrical hob 7 with a predetermined tooth tip is connected to the motor via a gear (not shown).
18 is rotatably supported.

A slider 21 is supported on the top surface of the bed 10 so as to be slidable in the left and right directions, and a rotary table 20 connected to the motor via a gear (not shown) is mounted on the slider 21, and the rotary table 20 is connected to the motor through a gear (not shown). It is rotatably supported around the periphery, and is configured to rotate in synchronization with the rotation of the ho 118. At the right end of the slider 21, a support 22 extending in the vertical direction is disposed upright, and the slider 21 has a horizontal feed screw shaft 24 extending in the horizontal direction, which is disposed on the front and back sides of the bed 10 in FIG. The handle 26 provided on one side of the support 22 is rotated by the operator. The slider 21 can be horizontally moved to a desired position by manual operation.

A cylindrical support member 32 capable of supporting three workpieces 29, 30, and 31 in a direction perpendicular to the upper surface of the rotary table 20 is disposed on the upper surface of the rotary table 20, and two collars 34 support the workpieces 29, 30, and 31 at equal intervals. Each workpiece 29.degree. 30.31 can be held by the support member 32, and the nut 36 can be tightened and fixed from above the support member 32. Also,
The rotary table 20 is mounted on the left side of the support 22.
An arm guide 40 is provided that extends in a direction perpendicular to the upper surface of the device, and a support arm 42 that protrudes to the left in FIG. 1 is provided on the arm guide 40 so as to be slidable in the vertical direction. Furthermore, a claw member 46 is disposed on the lower surface of the left end of the support arm 42 so as to protrude toward the support member 32, and a claw member 46 is provided on one side of the support arm 42 to attach the support arm 42 to the support 22 at an arbitrary height. An arm lever 44 for tightening and fixing is rotatably disposed. By rotating the arm lever 44, the support arm 42 is brought into contact with the claw member 46 in contact with the upper end of the support member 32 with a predetermined pressure.
is fixed to the support 22, and is configured to prevent the axis of the support member 32 from shifting.

A substantially T-shaped holding member 50 is attached to the lower part of the arm guide 40 so as to protrude to the left, and a substantially T-shaped tool holder 52 is inserted and supported between both 50 and 52 on the upper part of the holding member 50. It is mounted rotatably around a shaft 51. A rotating lever 54 is disposed on one side of the holding member 50, and a pair of bevel gears 53, 5 are attached to the shaft 51 and the rotating lever 54 inside the holding member 50.
5 is installed.

By operating the rotary lever 54, the cutting tool holder 52 can be moved to an operating position shown in FIG. It is rotatably provided to the inactive position shown in FIG. 2, which is rotated approximately 90 degrees. In the operating position, the cutting tool 62, which will be described later, engages the workpiece 29,
The cutting tool 62 is in contact with one side of the 30° 31, and is configured to be spaced apart from the workpieces 29, 30, and 31 in the inactive position.

Further, a moving lever 56 is attached to one side of the tool holder 52, and a pinion 57 connected to the moving lever 56 and a rack 59 attached to the upper surface of the holding member 50 act on the moving lever 56. The tool holder 52 is configured to be slidable in the left and right direction by operating the handle 56.

Three recesses 64 are provided on one side of the tool holder 52.
is formed, and three bits 62 each having a cutting edge 60 at one end are arranged in the recess 64 so as to protrude toward the one side. Further, the cutting tool 62 is slidably attached to a guide pin 66 inserted into the cutting tool holder 52, and a coil spring 68 disposed between the cutting tool 62 and the cutting tool holder 52 always allows the cutting tool 62 to is biased upward. Further, an O-ring 70 is attached near the center of the cutting tool 62 to prevent lubricating oil from flowing into the recess 64.

The present embodiment is configured as described above, and its operation will be explained next.

As shown in FIG. 2, two collars 34 are attached to the support member 32.
After the three workpieces 29, 30, and 31 are attached between the two, they are tightened and fixed with nuts 36, and the arm lever 44 is rotated to hold the upper end of the support member 32 at a predetermined position using the claw member 46. Press with pressure. Next, the rotating lever 54 and the moving lever 56 are operated to move the cutting tool holder 52 from the inactive position shown in FIG. 2 to the working position shown in FIG. The force causes it to abut one side of the lower surface of each workpiece 29, 30, 31.

After that, rotate the handle 26 to rotate the rotary table 20.
Then, the support 22 is moved along the horizontal feed screw shaft 24 from the inactive position shown in FIG. 2 to the active position shown in FIG. The hob saddle 16 is moved to a processing position where it comes into contact with the circumferential side of the object 31.

When the start switch (not shown) is turned on with the settings as described above, the motor (not shown) is activated to move the ho 718 clockwise and the rotary table 20 counterclockwise when viewed from above. While being rotated synchronously, the hob head 16 is sent upward by a predetermined amount by a feeding device (not shown) to perform gear cutting on the side surface of the workpiece 31, and in the same manner, the teeth are cut in the order of workpieces 30 and 29. Cutting is performed. Furthermore, at the same time that gear cutting is performed on each workpiece 29, 30.31, each workpiece 29, 30.3
When the rotary table 20 rotates about 180 degrees with respect to the gear cutting position, the burr generated on the lower side of the tool 1 comes into contact with the cutting edge 60 of the cutting tool 62 and is removed.

When the gear cutting and deburring of the upper workpiece 29 are completed and the hob saddle 16 reaches a predetermined position, a predetermined limit switch (not shown) is activated to stop driving the motor.

[Effects of the Invention] As detailed above, the present invention provides a deburring tool for removing burrs generated on one side of a workpiece placed on a rotary table during gear cutting. Since it is arranged on the one side of the workpiece, the gear cutting and deburring work can be efficiently performed in a single process without having to use a separate device to deburr the workpiece after the gear cutting process. play.

[Brief explanation of the drawing]

Fig. 1 is an overall configuration diagram showing the machining state of an embodiment embodying the present invention, Fig. 2 is an overall configuration diagram showing the state before machining of Fig. 1, and Fig. 3 shows the installation state of the cutting tool. Enlarged cross-sectional view,
FIG. 4 is an enlarged sectional view showing the inside of the tool holder and the holding member. In the figure, 10 is a bed, 12 is a column, 16 is a hob saddle, 18 is a hob, 20 is a rotating table, 22 is a support,
29, 30. 31 is the workpiece, 52 is the tool holder, 6
2 is a byte.

Claims (1)

[Claims] 1. A rotary table (20) rotatably supported on a machine frame (10, 12, 22) and on which at least one workpiece (29, 30, 31) is placed; The workpiece (29
, 30, 31).
) and a tool holding member (16) that rotatably supports the rotary table (20) and the gear cutting tool (18), which is disposed within the machine frame (10, 12, 22) and rotates the rotary table (20) and the gear cutting tool (18) synchronously. a rotary drive machine for rotating the workpiece (29, 30,
A gear cutting device that performs gear cutting on a workpiece (29, 30, 31) by relatively moving a gear cutting tool (18) toward a workpiece (29, 30, 31), A deburring tool (62) for removing burrs formed on one side of (29, 30, 31)
) is arranged on the one side of the workpiece (29, 30, 31). 2. The deburring tool (62) is attached to the workpiece (29).
, 30, 31), and an inactive position spaced apart from the workpiece (29, 30, 31). The gear cutting device according to claim 1, wherein the gear cutting device is held by a deburring tool holding member (52) rotatably supported thereon. 3. The deburring tool (62) is attached to the workpiece (29).
, 30, 31), and is held by the deburring tool holding member (52) so as to be slidable in a direction perpendicular to the one side surface of the gear cutting tool (52). Device.