JPH0112897Y2 - - Google Patents

Description

[Detailed description of the invention] Industrial field of application The present invention is designed to solve the problems that occur on the outer diameter of shafts when planing, axial grooves, etc. are applied mainly to the outer diameter of shafts. The present invention relates to a device for mechanically removing burrs.

Conventional technology Conventionally, when the outer diameter of shafts was milled or otherwise grooved in the axial direction,
Burrs generated on the outer diameter are removed manually using a file and a brush.

Problems that the invention attempts to solve In manual deburring using a file as described above,
There will be variations in the way the burrs are removed depending on the operator, and there is also the risk that the shaft will be damaged and the product will be uneven.

Also, in manual deburring using a brush, if the cutter in the previous process cuts well, the burr will be small.
The root of the burr is also weak, so it is easy to remove the burr, but if the cutter is not sharp enough, the burr will be large and the root will also become strong, and the brush will not be able to remove the burr and it will remain, making it difficult to improve processing standards and assembly in subsequent processes. The disadvantage is that sometimes problems occur.

A method of using a dedicated deburring machine installed in the processing line has also been proposed, but this method has drawbacks such as increased equipment costs, processing costs, installation area, etc., and extended processing time.

For this reason, the present invention has a processing machine that processes shafts in the axial direction, and a processing head that moves back and forth in the axial direction is equipped with an outer diameter deburring device that is separate from the processing tool of the processing machine. This was devised for the purpose of making it possible to uniformly and effectively remove burrs with an outer diameter deburring cutter by utilizing the forward and backward movement of the processing head.

Means for Solving the Problems As stated in the claims of the utility model registration, the present invention is directed to a processing head of a processing machine in which the processing head moves back and forth in the axial direction of the shafts to perform processing on the shafts. A deburring arm having an outer diameter deburring cutter, which is a tool different from the processing tool of the processing machine, is attached to the machine frame facing the advance and retreat trajectory of the processing head, and the deburring arm is placed in a standby position. At a position corresponding to the outer diameter cutting part where the burr is generated on the shaft set in the processing machine, the holding member to be held and the release member that releases the holding member and the deburring arm are used to cut the outer diameter of the shaft. The outer diameter deburring cutter has a blade surface that comes into close contact with the outer circumferential surface of the shaft, and a cutting blade formed on the tip edge thereof. Without using a separate deburring device, by using the machining movement of the machining head of the processing machine, burrs on the outer diameter of shafts are removed uniformly and reliably by scraping them outward from the circumference. It is made to be moisturized.

Function According to the present invention, the outer diameter deburring cutter, which is attached to the processing head of the processing machine and is normally held in a standby position by a holding member, is set on the processing machine as the processing head moves forward and backward. When the shaft is brought to a position corresponding to the outer diameter cutting part where burrs are generated, the holding member is released by the release member, and the pressing member is pressed against the outer diameter cutting part of the shaft. , the blade surface is brought into close contact with the peripheral surface of the shaft and moves together with the processing head,
Scrape off the burr by raising it outward from the circumference using the cutting edge at the tip of the blade surface.

For this reason, the outer diameter deburring cutter contacts the shaft with its blade surface only in the area where the burr is generated, so it removes the burr that has occurred on the outer diameter cutting part without damaging the peripheral surface of the shaft. uniformly,
Make sure to remove it.

Embodiment FIG. 1 is a front view of an example of the embodiment, and FIG. 2 is a side view thereof, showing the outside of the flat sliding part B by milling of shaft A, which is the steering shaft shown in FIGS. 7 and 8. Burr D generated in the diameter cut part C and the outer diameter cut part F of the axial groove cut part E
This shows a device for removing burrs, G, etc. generated in the process.

The processing machine 1 has a processing head 3 that moves up and down by a cylinder 2, and the processing head 3 has an inner diameter deburring cutter shown in FIG. 4 is formed in the inner hole H of the shaft A shown in FIG.
The vertical movement of the burr I generated during milling to form the grooved portion E is removed by cutting edges 6 and 7.
It is fixed so that it can be removed.

An inverted L-shaped deburring arm 9 is swingably attached to the bracket 8 of the processing head 3 on a shaft 10. At the tip of the hanging arm 11 of the deburring arm 9, An outer diameter deburring cutter 12 shown in the figure is fixed.

The outer diameter deburring cutter 12 has a concave arc-shaped blade portion 13 that is shaped closely to the outer peripheral surface of the shaft A,
The blade portion 13 includes a blade surface 14 that is in close contact with the outer peripheral surface of the shaft A, and a cutting edge 1 formed at the tip edge of the blade surface 14.
5, the cutting edge 15 is formed into a cutting edge with an angle of 90 degrees or less by the slope 16, and the hanging arm 1 of the deburring arm 9 is cut in the direction in which the cutting edge 13 matches the circumferential surface of the shaft A.
It is fixed to the tip of 1.

A supporting arm 17 extending outward is formed at the upper end of the hanging arm 11 of the deburring arm 9, and the roller 18 at the tip thereof is located in a position parallel to the movement direction of the processing head 3 and facing the forward and backward trajectory of the processing head 3. Fixed to the machine frame of
The outer diameter deburring cutter 12 is maintained at the standby position where it does not interfere with the outer peripheral surface of the shaft A by contacting the back surface of the cam plate 19, which is a holding member that holds the deburring arm 9 at the standby position.

A coil spring 21, which will be described later as a pressing member, is stretched between the tip of the horizontal arm 20 of the deburring arm 9 and the processing head 3.
An elastic force is constantly applied in a direction to bring the outer diameter deburring cutter 12 into elastic contact with the outer peripheral surface of the shaft A.

The processing head 3 advances toward the shaft A set in the processing machine 1, and the outer diameter deburring cutter 12 fixed to the deburring arm 9 described above is applied to the outer diameter cutting portions C, F, etc. of the shaft A. The cam plate 19, which is the above-mentioned holding member, is located at the opposing position.
A cam portion 22 is formed as a release member that releases the holding of the deburring arm 9 by the cam plate 22, and when the roller 18 of the support arm 17 of the deburring arm 9 reaches the cam portion 22, the cam plate against the deburring arm 9 is released. 19
is released, and due to the elasticity of the coil spring 21,
The deburring arm 9 is swung in the direction of arrow X, and the outer diameter deburring cutter 12 is configured to come into elastic contact with the circumferential surface of the shaft A where the outer diameter cutting portions C and F are present.

The above-mentioned roller 18 and cam plate 19 are coil springs 21.
This structure also constitutes a pressing member of the outer diameter deburring cutter 12, but the structure is not limited to such a structure. Any mechanism may be used as long as it is possible.

Reference numeral 23 in the figure indicates how to insert the tool 5 into the inner hole H of the shaft A.
24 is a guide post for the processing head 3, and 25 is a guide thereof.

With the above structure, when the processing head 3 of the processing machine 1 is lowered and the tool 5 starts removing the burr I in the inner hole H of the shaft A, the deburring arm having the outer diameter deburring cutter 12 9 also descends at the same time and reaches the outer diameter cutting parts C and F of the shaft A, and the roller 18 of the arm 9 reaches the cam part 22 of the cam plate 19, and the outer diameter deburring cutter fixed to the arm 9 is removed. 12 comes into elastic contact with the outer circumferential surface of the shaft A where the outer diameter cutting portions C and F exist due to the action of the coil spring 21, and the burrs D,
G etc. are removed. When removing burrs D, G, etc. with the outer diameter deburring cutter 12, the burrs are scraped off while raising them toward the outside of the circumferential surface of the shaft A.
In addition, the outer diameter deburring cutter 12 contacts the circumferential surface of the shaft A with its blade surface 14, and cuts off burrs D, G, etc. with the cutting edge of its tip edge, without causing damage to the circumferential surface of the shaft A. In this way, burrs can be removed evenly and reliably.

Effects of the invention The present invention has the above-mentioned structure and operation, and
The outer diameter deburring cutter is attached via a deburring arm to the processing head of a processing machine that processes shafts by moving the processing head back and forth in the axial direction of the shafts, so it is possible to remove separate and independent burrs. There is no need to provide a removing process or a deburring device, and there is an effect that burrs can be removed from the outer diameter cut portion of the shaft at the same time using the processing process of the processing machine described above.

In addition, when the deburring arm is not in operation, it is held in a standby position by a holding member, and when it reaches the outer diameter cutting part of the shaft as the processing head advances and retreats, it is released from the standby position by a release member. Due to the action of the pressing member, the burr is pressed against the outer diameter cutting part where the burr exists, and other parts do not come into contact with the outer diameter cutting part, so there is no risk of damaging the outer peripheral surface of the shaft, and the deburring cutter does not touch the blade surface. The burr is closely attached to the outer circumferential surface of the shaft, and burrs are removed using the cutting edge at the tip of the blade surface, so the burr is removed by scraping it toward the outside of the shaft circumferential surface, making it possible to remove it evenly and reliably. It has an effect.

[Brief explanation of the drawing]

Fig. 1 is a front view of an example of implementation, Fig. 2 is a side view of the thing shown in Fig. 1, Fig. 3 is a front view of the inner diameter deburring cutter of the inner diameter cutting part, and Fig. 4 is the outer diameter deburring cutter. A plan view, FIG. 5 is a front view of the thing shown in FIG. 4, FIG. 6 is a right side view of the thing shown in FIG. 4, FIG. 7 is a front view of the shaft, and FIG. 8 is a cross section taken along the line in FIG. It is a diagram. 1: Processing machine, 3: Processing head, 9: Deburring arm, 12: Outer diameter deburring cutter, 14: Blade surface, 15: Cutting blade, what constitutes the pressing member, 1
7: Support arm, 18: Roller, 19: Cam plate serving as a holding member, 21: Coil spring serving as a pressing member, 2
2: cam part which is a release member, A: shaft, B: planed part, C: outer diameter cut part, D: burr, E: groove cut part, F: outer diameter cut part, G: burr.

Claims (1)

[Scope of utility model registration request] A deburring arm having an outer diameter deburring cutter, which is a separate tool from the processing tool of the processing machine, is attached to the processing head of a processing machine whose processing head advances and retreats in the axial direction of the shafts to perform processing on the shafts. A holding member for holding the deburring arm in a standby position and a burr-generated outer diameter cutting portion of a shaft set in the processing machine are located at a position facing the forward and backward trajectory of the processing head. A release member that releases the holding member from the holding member and a pressing member that presses the deburring arm against the outer diameter cutting portion of the shaft are arranged at the corresponding position, and the outer diameter deburring cutter is placed on the outer circumferential surface of the shaft. What is claimed is: 1. A deburring device for the outer diameter cutting part of shafts, characterized by having a blade surface that comes into close contact with the blade surface and a cutting blade formed on the tip edge thereof.