JP2005212035A - Deburring tool for horizontal hole - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a deburring tool for a horizontal hole which is easy to be handled, and facilitates deburring work at an inlet of a machined hole. <P>SOLUTION: The deburring tool 10 for the horizontal hole carries out deburring of burrs generated at the inlet of the machined hole H, and is formed of a long operating shaft 11 and a rotation shaft 12. The operating shaft has a grip 11g attached thereto. The rotation shaft has the operating shaft 11 rotatably connected to one end 12a thereof, and a circular blade C having a taper surface T including a blade Cp fixed to the other end 12b thereof. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a horizontal hole deburring tool for processing a burr generated at the mouth of a hole associated with the hole machining.

  As this type of conventional horizontal hole deburring tool, the one described in Patent Document 1 described below is known. In this horizontal hole deburring tool, a chamfering blade having an inclined cutting edge at the shaft end and provided with a wrench hole in the shaft center portion is pivotally supported in a loosely fitted state at the tip end portion of the holder.

As a procedure for using this horizontal hole deburring tool, first, with the cutting edge of the chamfering blade pressed against the chamfered part at the back of the machining hole, insert a separately provided wrench from the inlet of the machining hole, and chamfer the tip. Insert it into the wrench hole provided on the blade. Then, by turning the wrench and rotating the chamfering blade, it is possible to perform processing of burr and burrs generated at the chamfered portion at the back of the machining hole (the mouth of the machining hole) and chamfering.
JP 2000-61728 A (see page 2, FIG. 7)

 When performing the deburring operation using the above-mentioned horizontal hole deburring tool, a wrench for rotating the chamfering blade is inserted from the entrance of the machining hole and its tip is inserted into the wrench hole of the chamfering blade to ensure the chamfering blade The length that can be rotated, that is, the length from the entrance of the processing hole to the chamfered part at the back of the hole (the length of the processing hole) and the length of the part to be gripped when turning the wrench It is necessary to have at least.

 In this case, the longer the hole length is, the more wrench will be required. . For example, in the process of inserting a wrench into a machining hole, it becomes easy for the wrench to come into contact with or hit against the inner peripheral surface of the machining hole, and as a result, the deburring operation can be easily performed. It will be difficult.

 Therefore, the present invention has been made in view of the above problems, and it is an object to provide a horizontal hole deburring tool that is easy to handle and can easily perform a deburring operation at the mouth of a processed hole. To do.

  In order to solve the above-described problem, the technical means taken in the present invention is a horizontal hole deburring tool for processing a burr generated at the mouth of a machining hole as described in claim 1. A long first shaft provided with a second end, and a second end to which the first shaft is rotatably connected to one end side and a circular cutting tool having a tapered surface including a blade portion is fixed to the other end side. It is set as the structure provided with an axis | shaft.

  Preferably, as described in claim 2, the second axis may be configured to draw a rotation locus in a plane along the longitudinal direction of the first axis.

  Preferably, as described in claim 3, the cutting tool may be configured to protrude from the second shaft in a direction orthogonal to the rotation locus.

  According to the present invention, the first shaft is rotatably connected to one end side of the second shaft, and a circular cutting tool having a tapered surface including a blade portion is fixed to the other end side of the second shaft. . That is, since the second shaft to which the cutting tool is fixed is rotatably connected to the first shaft, the cutting tool can be directly rotated by operating the first shaft, and a tool for rotating the cutting tool is separately provided. There is no need to provide it. Therefore, handling becomes easy, and deburring work at the mouth of the processed hole can be easily performed.

  The best mode for carrying out the present invention will be described below with reference to the drawings. FIG. 1 is a view showing a configuration of a horizontal hole deburring tool 10 according to the present invention. FIG. 1A shows a front view, and FIG. 1B shows a side view.

  As shown in the figure, the horizontal hole deburring tool 10 includes an operation shaft 11 (first shaft) and a rotation shaft 12 (second shaft). The operation shaft 11 having a long shape is provided with a grip 11g (gripping part). The cylindrical grip 11g is a part that is gripped by an operator when performing a deburring operation described later. Note that the shape of the grip 11g is not limited to this, and may be any shape that can be easily gripped by the operator.

  One end side 12a of the rotary shaft 12 is connected to the tip of the operation shaft 11 via a pin P inserted along a direction orthogonal to the axial direction (longitudinal direction). It is rotatable with respect to the operation shaft 11. That is, the rotation locus of the rotary shaft 12 with respect to the operation shaft 11 is drawn in a plane along the longitudinal direction of the operation shaft 11. On the other hand, a circular blade C having a tapered surface T is fixed to the other end side 12 b of the rotating shaft 12. The cutting tool C protrudes from the rotary shaft 12 in a direction orthogonal to the rotation locus of the rotary shaft 12 described above. The tapered surface T of the cutting tool C is formed in a notch shape in a certain section of the entire circumference, and the edge portion formed on the tapered surface T by the notch-shaped portion is actually a burr processing. It functions as a blade portion Cp for performing (cutting / removing). That is, the tapered surface T of the blade C is configured to include the blade portion Cp.

  Next, the procedure of the deburring operation using the horizontal hole deburring tool 10 of the present invention will be described with reference to FIGS.

  First, as shown in FIG. 2, an operator (not shown) grips the grip 11 g of the operation shaft 11 and forms a cutting tool C fixed to the other end side 12 b of the rotating shaft 12 on the workpiece W. Press against the mouth of the processed hole H. At this time, the tapered surface T (blade Cp) of the cutting tool C is in a state of being reliably pressed against the mouth of the machining hole H.

 Subsequently, in a state where the tapered surface T (blade Cp) of the cutting tool C is pressed against the mouth of the machining hole H, as shown in FIG. 3, a pin that is a connecting portion between the operation shaft 11 and the rotary shaft 12. The operation shaft 11 is operated so that P draws a rotation trajectory centering on the blade C. In FIG. 3, for convenience, the position of the blade portion Cp on the tapered surface T is illustrated in a simplified manner. At this time, the one end side 12 a of the rotary shaft 12 connected to the operation shaft 11 via the pin P also rotates around the blade C as the operation shaft 11 is operated. Here, since the cutter C is fixed to the other end 12b of the rotary shaft 12, when the one end 12a of the rotary shaft 12 rotates around the cutter C by the operation of the operating shaft 11, the cutter C It will rotate while being pressed against the mouth of H. At this time, burrs generated at the mouth of the machining hole H are processed (cut and removed) by the blade portion Cp of the tapered surface T of the blade C.

  As described above, according to the horizontal hole deburring tool 10 of the present invention, the operating shaft 11 is rotatably connected to one end side 12a of the rotating shaft 12, and the blade portion Cp is connected to the other end side 12b of the rotating shaft 12. A circular cutting tool C having a taper surface T including the is fixed. That is, since the rotary shaft 12 to which the blade C is fixed is rotatably connected to the operation shaft 11, the blade C can be directly rotated by the operation of the operation shaft 11, and the blade C can be rotated. There is no need to provide a separate tool. Therefore, handling becomes easy, and deburring work at the mouth of the processed hole H can be easily performed.

It is the front view and side view which show the structure of the horizontal hole deburring tool of this invention. It is a figure explaining the procedure of the deburring operation | work using the horizontal hole deburring tool of this invention. It is a figure explaining the procedure of the deburring operation | work using the horizontal hole deburring tool of this invention.

Explanation of symbols

10 Horizontal hole deburring tool 11 Operation axis (first axis)
11g grip (grip)
12 Rotating shaft (second shaft)
12a One end side 12b The other end side H Machining hole T Tapered surface C Cutting tool Cp Blade part

Claims (3)

A horizontal hole deburring tool for processing burrs generated at the mouth of a machined hole,
A long first shaft provided with a gripping part;
The first shaft is rotatably connected to one end side, and the second shaft to which a circular blade having a tapered surface including a blade portion is fixed on the other end side;
A horizontal hole deburring tool characterized by comprising:   The horizontal hole deburring tool according to claim 1, wherein the second axis draws a rotation locus in a plane along the longitudinal direction of the first axis.   The horizontal hole deburring tool according to claim 2, wherein the cutting tool protrudes from the second shaft in a direction orthogonal to the rotation locus.

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