Processing machine

Abstract

To provide a processing machine that can be compacted in an accessible manner. 【Solution means】 It includes a spline shaft 15 to which a rotational force is input, a base portion 3 that rotatably supports this spline shaft 15, a movable portion 6 that is provided slidably along the axial direction of the spline shaft 15 with respect to this base portion 3, a spline boss 22 that is rotatably supported by this movable portion 6 and to which a rotational force is transmitted from the spline shaft 15, a disk holder 25 for holding a disk 7 on this spline boss 22, and an air cylinder portion 41 for sliding the movable portion 6 with respect to the base portion 3 and pressing the disk 7 against the workpiece.

Description

Technical Field

[0001] The present invention relates to a processing machine capable of appropriately maintaining a pressing force in a polishing machine, a grinding machine, or the like.

Background Art

[0002] Conventionally, various types of such processing machines have been proposed.

[0003] For example, Patent Document 1 discloses a polishing machine mounting device for a robot in which a polishing machine is mounted at the tip of a multi-joint arm via an air cylinder so as to appropriately maintain the pressing force of the polishing machine.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] However, since the entire polishing machine is supported by an air cylinder, there is a problem of increased size.

[0006] The present invention has been made based on the above circumstances, and an object thereof is to provide a processing machine that can be made as compact as possible.

Means for Solving the Problems

[0007] In order to solve the above problems, the processing machine according to the present invention includes an input-side rotating shaft to which a rotational force is input, a base portion that rotatably supports the input-side rotating shaft, a movable portion that is slidably provided along the axial direction of the input-side rotating shaft with respect to the base portion, an output-side rotating shaft that is rotatably supported by the movable portion and transmits the rotational force from the input-side rotating shaft, a holding portion for holding a cutting tool on the output-side rotating shaft, and an air cylinder portion for sliding the movable portion with respect to the base portion and pressing the cutting tool against the workpiece. It is provided with a base portion having an outer peripheral portion, a movable portion having an inner peripheral portion that slidably fits over the outer peripheral portion, an air cylinder portion including a cylinder chamber formed in the base portion, a piston fixed to the movable portion and fitted into the cylinder chamber, a first air introduction hole formed in the base portion, an annular air flow path that guides the air introduced from the first air introduction hole to the cylinder chamber, and a second air introduction hole formed in the base portion for introducing air between the base portion and the movable portion. The cylinder chamber and the piston are arranged in a plurality, spaced radially outward from the input-side rotating shaft and the output-side rotating shaft. It is characterized by the above.

Effect of the Invention

[0008] According to the processing machine of the present invention, it is possible to make it as compact as possible.

Brief Description of the Drawings

[0009] The drawings show specific embodiments of the present invention and include not only the essential components of the invention but also optional and preferred embodiments.

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Embodiment for Carrying Out the Invention

[0010] Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

[0011] In FIG. 1, reference numeral 1 denotes a polishing machine as a processing machine according to an embodiment of the present invention.

[0012] This polishing machine 1 includes a base portion 3 that is attached, for example, to the tip of an arm of an industrial robot via an attachment member 2. A motor 5 is attached to one side of the base portion 3, and a movable portion 6 is attached to the other side.

[0013] And a disk (processing tool) 7 for performing polishing is attached to the movable portion 6.

[0014] As shown in FIGS. 2 to 5, the base portion 3 includes an annular cylinder block 11.

[0015] A spline joint 13 is attached to the inner peripheral side of the cylinder block 11 via an angular bearing 12.

[0016] This spline joint 13 is connected to the motor shaft 14 of the motor 5.

[0017] Also, a spline shaft (input-side rotating shaft) 15 is fixed to the spline joint 13 by bolts 16 so that a rotational force is input from the motor 5.

[0018] Furthermore, the cylinder block 11 has a columnar outer peripheral portion 17, and the movable portion 6 includes a stroke block 19 having an inner peripheral portion 18 that slidably fits over the outer peripheral portion 17.

[0019] As also shown in FIGS. 6 and 7, a spline nut holder 21 is attached to the inner peripheral side of the stroke block 19 via a radial bearing 20, and a spline boss (output-side rotating shaft) 22 that slidably fits over the spline shaft 15 is held by the spline nut holder 21.

[0020] The radial bearing 20 is fixed to the stroke block 19 by the decorative cover 23 and the bolt 24.

[0021] Also, a disk holder (holding part) 25 is fixed to the spline boss 22, and the disk 7 is fixed to the disk holder 25 by a disk fixing screw 26.

[0022] Furthermore, as shown in FIG. 8, a tubular linear bush 27 is embedded in the cylinder block 11, and a shaft 28 that is slidable in the linear bush 27 is attached to the stroke block 19 by a bolt 29, thereby guiding the slide of the stroke block 19.

[0023] Furthermore, as shown in FIG. 9, a stop bolt 30 is attached to the cylinder block 11.

[0024] On the other hand, a stepped hole 33 having a large-diameter portion 31 and a small-diameter portion 32 is formed in the stroke block 19.

[0025] The stop bolt 30 is screwed into the cylinder block 11 by inserting the small-diameter portion 32 so that the head 34 is located in the large-diameter portion 31, thereby preventing the stroke block 19 from coming off the cylinder block 11.

[0026] In the polishing machine 1 configured as described above, an air cylinder portion 41 for sliding the movable portion 6 with respect to the base portion 3 and pressing the disk 7 against the workpiece is further provided.

[0027] That is, an annular end plate 42 is fixed to the motor 5 side of the cylinder block 11 by bolts 43.

[0028] A first air introduction hole 44 for introducing air is formed in the end plate 42.

[0029] Further, an annular groove 45 with a concave cross-section is formed in this end plate 42, and by polymerizing and closing the open portion of this annular groove 45 with the cylinder block 11, an annular air flow path 46 for the air introduced from the first air introduction hole 44 is formed.

[0030] In addition, the cylinder block 11 is provided with a cylinder chamber 47 communicating with the air flow path 46, and this cylinder chamber 47 is formed by a tubular bush 48 embedded in the cylinder block 11.

[0031] On the other hand, inside the stroke block 19, a piston 49 fitted into the cylinder chamber 47 is fixed.

[0032] Then, air is introduced from the first air introduction hole 44 into the cylinder chamber 47 through the air flow path 46, thereby pushing the piston 49. As a result, the stroke block 19 slides, and the disk 7 is pressed against the workpiece, and the pressing force of the disk 7 against the workpiece is properly maintained.

[0033] Further, a second air introduction hole 50 for introducing air between the cylinder block 11 and the stroke block 19 is formed in the end plate 42 and the cylinder block 11 of the base portion 3, so that an air purge can be applied to prevent dust from entering between the cylinder block 11 and the stroke block 19.

[0034] According to the above configuration, the tip side of the polishing machine 1 has a movable structure, and the pressing force of the disk 7 against the workpiece is properly maintained by the air cylinder portion 41, so that it is possible to make it as compact as possible.

[0035] The disclosure regarding the present invention described above can be summarized at least as the following matters.

[0036] That is, the processing machine according to the present invention includes an input-side rotating shaft to which a rotational force is input, a base portion that rotatably supports the input-side rotating shaft, a movable portion that is slidably provided along the axial direction of the input-side rotating shaft with respect to the base portion, an output-side rotating shaft that is rotatably supported by the movable portion and transmits the rotational force from the input-side rotating shaft, a holding portion for holding a cutting tool on the output-side rotating shaft, and an air cylinder portion for sliding the movable portion with respect to the base portion and pressing the cutting tool against the workpiece It is provided with a base portion having an outer peripheral portion, a movable portion having an inner peripheral portion that slidably fits over the outer peripheral portion, an air cylinder portion including a cylinder chamber formed in the base portion, a piston fixed to the movable portion and fitted into the cylinder chamber, a first air introduction hole formed in the base portion, an annular air flow path that guides the air introduced from the first air introduction hole to the cylinder chamber, and a second air introduction hole formed in the base portion for introducing air between the base portion and the movable portion. The cylinder chamber and the piston are arranged in a plurality, spaced radially outward from the input-side rotating shaft and the output-side rotating shaft. It is characterized by this.

Explanation of Signs

[0042] 1 Processing machine 3 Base portion 6 Movable portion 7 Cutting tool (disk) 15 Input-side rotating shaft (splined shaft) 17 Outer peripheral portion 18 Inner peripheral portion 22 Output-side rotating shaft (splined boss) 25 Holding portion (disk holder) 41 Air cylinder portion 44 First air introduction hole 46 Air flow path 47 Cylinder chamber 49 Piston 50 Second air introduction hole

Claims

[Claim 1] an input side rotating shaft to which a rotational force is input; a base portion that rotatably supports the input side rotation shaft; a movable portion provided to be slidable along an axial direction of the input side rotation shaft with respect to the base portion; an output side rotating shaft that is rotatably supported by the movable portion and receives a rotational force from the input side rotating shaft; A holding portion for holding a processing tool on the output side rotating shaft; an air cylinder portion for sliding the movable portion relative to the base portion and pressing the processing tool against a portion to be processed; Equipped with The base portion has an outer periphery, the movable portion includes an inner circumferential portion that is slidably fitted onto the outer circumferential portion, the air cylinder portion includes a cylinder chamber formed in the base portion, a piston fixed to the movable portion and fitted into the cylinder chamber, a first air inlet hole formed in the base portion, an annular air flow path that guides air introduced from the first air inlet hole to the cylinder chamber, and a second air inlet hole formed in the base portion that introduces air between the base portion and the movable portion, The cylinder chamber and the piston are arranged in a plurality of positions radially outwardly spaced from the input side rotation shaft and the output side rotation shaft. A processing machine characterized by the above.

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