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US 2014/0360241 A1Published application
Shot peening device and shot peening method
AssigneeSintokogio, Ltd.
InventorMasatoshi Yamamoto
Life of this patent
Estimating the term…
Abstract
A plurality of rotatable small table are disposed on a rotatable large table, and a workpiece is mounted on the small tables. Above a projection range in the large table, a pressing part is provided. The pressing part is elevated and lowered by an elevating/lowering mechanism between a withdrawn position spaced above the workpiece on the small table and a pressing position for pressing the workpiece on the small table from above. Also, the pressing part is rotationally driven coaxially with a rotary shaft of the small table and in the same rotating direction and at the same rotating speed as the small table, by a third drive mechanism.
Claims20
1:
- A shot processing device comprising:
- a projector which projects a projection material to a workpiece;
- a rotatable first rotary table which is disposed at a position including a projection range where the projection material is projected by the projector and a non-projection range outside the projection range;
- a first drive mechanism which rotationally drives the first rotary table;
- a plurality of second rotary tables which are disposed on the first rotary table and include a rotary shaft parallel to a rotary shaft of the first rotary table to be rotatable, and on which the workpiece is to be mounted;
- a second drive mechanism which rotationally drives the second rotary table;
- a pressing part which is provided above the projection range on the first rotary table, and which is movable up and down between a withdrawn position spaced above the workpiece on the second rotary table and a pressing position for pressing the workpiece on the second rotary table from above;
- an elevating/lowering mechanism which elevates and lowers the pressing part;
- and
- a third drive mechanism which rotationally drives the pressing part coaxially with the rotary shaft of the second rotary table and in the same rotating direction and at the same rotating speed as the second rotary table.
7 more elements
2:
- The shot processing device according to claim 1,
- wherein the elevating/lowering mechanism includes a servo cylinder.
3:
- The shot processing device according to claim 1,
- wherein the third drive mechanism rotationally drives the pressing part continuously in states including the state where the workpiece is disposed in the projection range and the pressing part is lowered in a direction from the withdrawn position to the pressing position, the state where the workpiece is disposed in the projection range and the pressing part is disposed at the pressing position, and the state where the workpiece is disposed in the projection range and the pressing part is elevated in a direction from the pressing position to the withdrawn position.
4:
- The shot processing device according to claim 1,
- wherein
- above the second rotary table, a pressing shaft to a lower end of which the pressing part is fixed and which constitutes a part of the elevating/lowering mechanism is disposed coaxially with the rotary shaft of the second rotary table, and
- the pressing shaft is constituted by connecting a plurality of shafts in series and has a detachable distal end shaft for fixing the pressing part on a lower part of the pressing shaft.
1 more element
5:
- The shot processing device according to claim 1,
- wherein
- the first drive mechanism includes an index device, the second drive mechanism includes a drive motor for the second drive mechanism, the third drive mechanism includes a drive motor for the third drive mechanism, and
- the index device, the drive motor for the second drive mechanism, and the drive motor for the third drive mechanism are all disposed above a device ceiling part.
1 more element
6:
- The shot processing device according to claim 1, including:
- a projection area which is a part of space above the first rotary table, and in which projection is performed by the projector to the workpiece;
- a carry-in area which is a part of the space above the first rotary table and is adjacent to a carry-in port for carrying in the workpiece;
- and
- a carry-out area which is a part of the space above the first rotary table and is adjacent to a carry-out port for carrying out the workpiece.
2 more elements
7:
- The shot processing device according to claim 1, including:
- a projection area which is a part of space above the first rotary table, and in which projection is performed by the projector to the workpiece;
- and
- a carry-in/carry-out area which is a part of the space above the first rotary table and is adjacent to a carry-in/carry-out port for carrying in and out the workpiece.
1 more element
8:
- The shot processing device according to claim 6,
- wherein
- a blow-down area for blowing down the projection material on the workpiece is provided in a part of the space above the first rotary table, on the downstream side of the projection area in the rotating direction of the first rotary table and on the upstream side of the carry-out area in the rotating direction of the first rotary table, and
- a blowing device which has a blowing port disposed facing the blow-down area and is capable of blowing air to the workpiece is provided.
1 more element
9:
- The shot processing device according to claim 7,
- wherein
- a blow-down area for blowing down the projection material on the workpiece is provided in a part of the space above the first rotary table, on the downstream side of the projection area in the rotating direction of the first rotary table and on the upstream side of the carry-in/carry-out area in the rotating direction of the first rotary table, and
- a blowing device which has a blowing port disposed facing the blow-down area and is capable of blowing air to the workpiece is provided.
1 more element
10:
- A shot processing method comprising:
- a mounting step of mounting a workpiece on a second rotary table which is disposed on a rotatable first rotary table and includes a rotary shaft parallel to a rotary shaft of the first rotary table to be rotatable;
- a rotating step of rotationally driving the first rotary table about the rotary shaft of the first rotary table and rotationally driving the second rotary table about the rotary shaft of the second rotary table at least in a projection range where a projection material is projected, after the mounting step;
- a pressing step of pressing the workpiece from above after the rotating step, by a pressing part rotationally driven coaxially with the rotary shaft of the second rotary table and in the same rotating direction and at the same rotation speed as the second rotary table;
- and
- a projecting step of projecting the projection material to the workpiece, after the pressing step.
3 more elements
11:
- The shot processing device according to claim 2,
- wherein the third drive mechanism rotationally drives the pressing part continuously in states including the state where the workpiece is disposed in the projection range and the pressing part is lowered in a direction from the withdrawn position to the pressing position, the state where the workpiece is disposed in the projection range and the pressing part is disposed at the pressing position, and the state where the workpiece is disposed in the projection range and the pressing part is elevated in a direction from the pressing position to the withdrawn position.
12:
- The shot processing device according to claim 2,
- wherein
- above the second rotary table, a pressing shaft to a lower end of which the pressing part is fixed and which constitutes a part of the elevating/lowering mechanism is disposed coaxially with the rotary shaft of the second rotary table, and
- the pressing shaft is constituted by connecting a plurality of shafts in series and has a detachable distal end shaft for fixing the pressing part on a lower part of the pressing shaft.
1 more element
13:
- The shot processing device according to claim 3,
- wherein
- above the second rotary table, a pressing shaft to a lower end of which the pressing part is fixed and which constitutes a part of the elevating/lowering mechanism is disposed coaxially with the rotary shaft of the second rotary table, and
- the pressing shaft is constituted by connecting a plurality of shafts in series and has a detachable distal end shaft for fixing the pressing part on a lower part of the pressing shaft.
1 more element
14:
- The shot processing device according to claim 11,
- wherein
- above the second rotary table, a pressing shaft to a lower end of which the pressing part is fixed and which constitutes a part of the elevating/lowering mechanism is disposed coaxially with the rotary shaft of the second rotary table, and
- the pressing shaft is constituted by connecting a plurality of shafts in series and has a detachable distal end shaft for fixing the pressing part on a lower part of the pressing shaft.
1 more element
15:
- The shot processing device according to claim 2,
- wherein
- the first drive mechanism includes an index device, the second drive mechanism includes a drive motor for the second drive mechanism, the third drive mechanism includes a drive motor for the third drive mechanism, and
- the index device, the drive motor for the second drive mechanism, and the drive motor for the third drive mechanism are all disposed above a device ceiling part.
1 more element
16:
- The shot processing device according to claim 3,
- wherein
- the first drive mechanism includes an index device, the second drive mechanism includes a drive motor for the second drive mechanism, the third drive mechanism includes a drive motor for the third drive mechanism, and
- the index device, the drive motor for the second drive mechanism, and the drive motor for the third drive mechanism are all disposed above a device ceiling part.
1 more element
17:
- The shot processing device according to claim 4,
- wherein
- the first drive mechanism includes an index device, the second drive mechanism includes a drive motor for the second drive mechanism, the third drive mechanism includes a drive motor for the third drive mechanism, and
- the index device, the drive motor for the second drive mechanism, and the drive motor for the third drive mechanism are all disposed above a device ceiling part.
1 more element
18:
- The shot processing device according to claim 11,
- wherein
- the first drive mechanism includes an index device, the second drive mechanism includes a drive motor for the second drive mechanism, the third drive mechanism includes a drive motor for the third drive mechanism, and
- the index device, the drive motor for the second drive mechanism, and the drive motor for the third drive mechanism are all disposed above a device ceiling part.
1 more element
19:
- The shot processing device according to claim 12,
- wherein
- the first drive mechanism includes an index device, the second drive mechanism includes a drive motor for the second drive mechanism, the third drive mechanism includes a drive motor for the third drive mechanism, and
- the index device, the drive motor for the second drive mechanism, and the drive motor for the third drive mechanism are all disposed above a device ceiling part.
1 more element
20:
- The shot processing device according to claim 13,
- wherein
- the first drive mechanism includes an index device, the second drive mechanism includes a drive motor for the second drive mechanism, the third drive mechanism includes a drive motor for the third drive mechanism, and
- the index device, the drive motor for the second drive mechanism, and the drive motor for the third drive mechanism are all disposed above a device ceiling part.
1 more element