JPH0727054Y2 - Tooth surface deburring tool - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a tooth surface deburring tool used for removing burrs generated on the end faces of meshing teeth formed on the peripheral surface of a work.

(Prior Art) For example, in a clutch retainer for an auto transmission in an automobile, a meshing tooth is formed on an inner peripheral surface of a clutch cover, and an annular groove is provided in a state intersecting with the meshing tooth, and a clutch plate, a snap ring, or the like is provided in the groove. Are installed. In forming the clutch cover, first, a cover having meshing teeth on the inner peripheral surface is formed, and then the inner peripheral surface of the cover is cut by a lathe or the like to form a groove. However, in this case, burrs are generated on the end faces of the teeth facing the cut grooves. This burr adversely affects the mounting position accuracy of the clutch plate and the snap ring arranged in the groove. Therefore, it is necessary to remove burrs after molding, and conventional methods for removing the burrs include brush polishing and barrel polishing.

(Problems to be solved by the invention) However, there are irregularities in deburring due to brush polishing, barrel polishing, etc., or stable deburring cannot be performed because the tooth body is shaved and it takes time, resulting in poor workability. was there.

The present invention has been made in view of the above problems, and an object thereof is to provide a tooth surface deburring tool capable of reliably and quickly cutting only the burr on the tooth end surface without cutting the tooth body. is there.

(Means for Solving the Problems) In order to achieve the above object, the present invention provides a tooth surface deburring tool for removing burrs generated on meshing teeth formed on an inner peripheral surface of a workpiece. A master gear that is attached to a rotary shaft that is arranged parallel to the rotation center of the work and that meshes with the meshing teeth of the work, a disc-shaped main body that is integrally attached to the rotary shaft, and an outer peripheral surface of the main body. And a tool tooth that is integrally formed with the master gear and has an equal pitch with the master gear and is formed so as to be able to mesh with the meshing tooth on the work side, and the tool tooth is oriented in the tooth width direction of the tool tooth. A tooth portion for a cutter having an inclined tooth top surface is formed, and an inclined edge portion formed between the tooth top surface and the tooth side surface of the tooth portion for a cutter is formed as a cutting blade for cutting the burr, and the meshing of the workpiece is performed. Tooth and deburring tool cutter It is characterized in that the tooth portion is relatively slid in the direction of the rotation axis and is driven so as to be engaged and rotated.

(Operation) The work, the master gear, and the deburring tool are engaged with each other to rotate, and are driven so as to relatively slide in the direction of the rotation axis, and further, one of them is driven to rotate. At this time, since the meshing teeth of the work and the cutter teeth on the deburring tool side relatively slide and move in the rotation axis direction while rotating, the cutting edge with an inclined edge of the cutter teeth is Since the teeth of the meshing teeth are slidably moved and meshed with each other, the cutting blade cuts burrs on the surfaces of the meshing teeth.

(Embodiment) Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.

1 and 2 are schematic views showing a main part of a processing apparatus to which a deburring tool according to an embodiment of the present invention is applied.
FIGS. 3 to 4 show a state where deburring is performed on a work by using this processing apparatus.

1 to 4, the work 2 to be deburred by the processing apparatus 1 is used as, for example, a clutch cover of an auto mission in an automobile, and has one end open and the other end a back wall 3 (see FIG. 4). (See) and has a cup shape closed with the meshing teeth 4 integrally provided on the inner peripheral surface. An annular groove 5 is formed on the inner peripheral surface along the peripheral surface so as to intersect with the meshing teeth 4. This groove 5 forms a space for accommodating a clutch plate, a snap ring (not shown), etc. After the meshing tooth 4 is formed, it is cut into a concave shape from the inner tooth side by a lathe or the like by a dimension t (see FIG. 5). However, during this cutting, as shown in FIG. 4 (and a partially enlarged perspective view of the portion E in FIG. 4 in FIG. 5), the tooth end surface 20 (the (See Fig. 5) Burr 6
Occurs. 4 and 5, the work 2 is shown in a state where the burr 6 is not removed.

On the other hand, the processing apparatus 1 shown in FIGS. 1 and 2
Is shown in a state in which the work 2 is not set, and in FIGS. 3 to 4 is shown in a state in which the burr 6 of the work 2 can be removed.
Further, in this processing apparatus 1, after the deburring tool 8, the spacer 9 and the master gear 10 are sequentially arranged at one end of the rotary shaft 7, the retaining member 11 is further screwed into the screw hole 12 of the rotary shaft 7. And is attached by means of the retaining member 11. In addition, the deburring tool 8 and the rotary shaft 7
The master gear 10 and the rotary shaft 7 are in a state in which they can rotate integrally with each other via the key 13.

More specifically, the deburring tool 8 includes a rotating shaft 7 at the center.
A disk-shaped main body 15 having a through hole 14 through which the key 13 and the key 13 are engaged, and a tool tooth formed on the outer peripheral surface of the main body 15 at a pitch at which the meshing teeth 4 of the work 2 can mesh with each other. 16
And are integrally formed in a gear shape. Also,
On one end side of the tool tooth 16, there is provided a cutter tooth portion 17 that is inclined toward the center.
Both side edge portions are sharply formed so that they can be used as the cutting blade 18 (see FIG. 1). On the other hand, the master gear 10 has a disk-shaped main body portion 20 in which a through hole 19 through which the rotary shaft 7 and the key 13 are engaged, and a meshing tooth 4 of the work 2 are provided on the outer peripheral surface of the main body portion 20. Meshing teeth 21 formed at a pitch capable of meshing with each other are integrally provided.

When the deburring tool 8 and the master gear 10 thus configured are attached to the processing apparatus 1, when removing the burr 6 generated on the end surface 20 of the meshing tooth 4 of the work 2, the processing apparatus 1 works together with the rotating shaft 7. The deburring tool 8 and the master gear 10 are arranged in the work 2. Further, the arrangement at this time is such that the cutter tooth portion 17 of the deburring tool 8 corresponds to the groove 5, and the tool tooth 16 of the deburring tool 8 and the meshing tooth 21 of the master gear 10 are respectively provided on the work 2. It is arranged in a state of being meshed with the meshing teeth 4 formed on the inner surface.
Next, in this state, the workpiece 2 is centered around the rotation axis center 31.
When is rotated clockwise, the master gear 10 and the deburring tool 8 are driven to rotate together with the rotary shaft 7. At this time, the deburring tool 8 is driven by the driving means (not shown) of the processing apparatus 1 so as to sequentially slide in the rotation axis direction. Therefore, the meshing teeth 4 of the workpiece 2 and the cutter teeth 17 on the deburring tool 8 side relatively mesh with each other and relatively slide in the direction of the rotation axis. At this time,
The inclined edge-shaped cutting blade 18 of the cutter tooth portion 17 sequentially moves the burr 6 at the end (see FIG. 5) on the tooth surface of the groove 5 formed in a part of the meshing tooth 4 in the rotation axis direction. It can be removed while sliding.

Therefore, when the deburring tool 8 is rotated by the rotation of the work 2, the relative displacement amount between the cutting blade 18 of each tool tooth 16 and the end surface 20 of the meshing tooth 4 and each cutting blade 18 act on the end surface 20 of the work 2. The relationship with the direction of the cutting force is as shown in FIG.
That is, according to the rotation amount (I) of the work 2, the processing device 1
Is also pulled by the work 2 and rotates. And the cutting blade 18
Since the tooth portion 17 for the cutter that is provided with is inclined toward the center, as shown by the displacement (II) of the cutting blade,
Sequentially moves toward the end face 20 side of the meshing tooth 4 (direction of arrow B in FIG. 5). Further, as the cutting blade 18 moves toward the end face 20 side of the meshing tooth 4, a force shown in the cutter acting direction (III) acts from the cutting blade 18 to cut the burr 6. Further, this cutting is performed every time the work 2 rotates and the tool teeth 16 mesh with the meshing teeth 4.

Therefore, the processing device 1 does not positively rotate itself but is driven by the work 2 to rotate, and at this time, the cutting blade of the tool tooth 16 is rotated.
Since the burr is cut while sliding relatively with the end surface 20 of the meshing tooth 4 sliding against the end surface 20, it is possible to reliably cut only the burr 6 having a small cutting resistance to prevent the meshing tooth 4 itself from being cut. be able to. As a result, uneven cutting is eliminated and stable deburring can be performed. Moreover, since the cutting is performed while rotating together with the work 2, the cutting time for deburring can be shortened.

In the above-described embodiment, the configuration in which the work 2 side is driven to rotate and the processing device 1 side is driven is disclosed.
The side may be the driving side and the work 2 side may be the driven side. Of course, the present invention can be variously modified within the scope of the invention.

(Effect of the Invention) As described above, according to the deburring tool for the tooth end surface according to the present invention, since the deburring tool and the work are meshed with each other by the meshing teeth, the rotation of one side causes the other to move. The sides also rotate with each other. Then, when the meshing teeth of the workpiece and the cutter teeth on the deburring tool side rotate relative to each other, the inclined edge-shaped cutting blades of the cutter teeth are on the tooth surface of the groove formed in a part of the meshing teeth. The burrs at the ends of the can be removed by sequentially sliding in the direction of the rotation axis. Also, since one of the deburring tool and the workpiece can be driven to rotate and both can be prevented from actively rotating at the same time, only the burrs on the tooth surface with a small cutting resistance can be secured without cutting the tooth body. And it can be cut quickly.

[Brief description of drawings]

FIG. 1 is a schematic view of an essential part of an embodiment of a processing apparatus to which the deburring tool of the present invention is applied, FIG. 2 is a sectional view taken along the line AA of FIG. 1, and FIG. Is a main part configuration diagram schematically showing a state of deburring a work by using the same processing device, FIG. 4 is a main part sectional view taken along the line CC of FIG. 3, and FIG. FIG. 6 is an enlarged perspective view of an E portion in FIG. 4, and FIG. 6 is a relative displacement amount between each cutting blade and an end surface of a meshing tooth and a cutting action direction of each cutting blade when the deburring tool rotates as the workpiece rotates. It is explanatory drawing which showed the relationship with. 1 ... Machining device, 2 ... Work, 4 ... Work-side engaging teeth, 5 ... Annular groove, 6 ... Burr, 8 ... Deburring tool, 10 ... Master gear, 15 ... Deburring Tool body part, 16 …… Deburring tool side tool tooth, 17 …… Cutter tooth part, 18 …… Cutting blade, 20 …… Tooth end face, 31 …… Workpiece axis center.

Claims (1)

[Scope of utility model registration request] 1. A deburring tool for a tooth surface for removing burrs formed on meshing teeth formed on an inner peripheral surface of a work, said deburring tool being mounted on a rotary shaft arranged in parallel with a rotation center of said work. A master gear that meshes with the meshing teeth of the work, and a disc-shaped body that is integrally attached to the rotary shaft,
The tool tooth is formed integrally with the outer peripheral surface of the main body portion and has the same pitch as the master gear and is formed so as to be able to mesh with the meshing tooth on the work side, and the tool tooth has the same tool tooth. A tooth portion for a cutter whose tip surface is inclined toward the tooth width direction of the tooth is formed, and an inclined edge portion formed between the tooth top surface and the tooth side surface of the cutter tooth portion is formed as a cutting blade for cutting the burr. A deburring tool for a tooth surface is characterized in that the meshing teeth of the work and the cutter tooth portion of the deburring tool are driven so as to relatively slide in the direction of the rotation axis and rotate together.