# US 2014/0360241 A1 · Shot peening device and shot peening method > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0360241 A1 - Document ID: US20140360241A1 - Status: Published application - Kind: A1 - Application number: 14/373,460 - Filed: 2012-10-31 - Published: 2014-12-11 - Earliest claimed: 2012-02-13 - Assignees: Sintokogio, Ltd. - Applicants: Sintokogio, Ltd. - Inventors: Masatoshi Yamamoto - Web page: https://patentgrep.com/patent/US20140360241A1 ## CPC - B24C 3/20: the work being supported by turntables - B21D 31/06: Deforming sheet metal, tubes or profiles by sequential impacts, e.g. hammering, beating, peen forming (forging hammers B21J7/00) - B24C 1/00: Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods - B24C 1/10: for compacting surfaces, e.g. shot-peening (for deforming sheet metal, tubes or profiles B21D31/06; as a metallurgical treatment C21D7/00, C22F1/00) - B24C 3/08: essentially adapted for abrasive blasting of travelling stock or travelling workpieces - B24C 3/24: Apparatus using impellers - B24C 9/00: Appurtenances of abrasive blasting machines or devices, e.g. working chambers, arrangements for handling used abrasive material - B24C: ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL - B21D: WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL (working or processing of wire B21F) ## 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 The pressing part is elevated and lowered by an elevating/lowering mechanism between a withdrawn position spaced above the workpiece on the small table and a pressing position for pressing the workpiece on the small table from above.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. ## Claims ### Claim at position 1 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. ### Claim at position 2 (depends on 1) 2: The shot processing device according to claim 1, wherein the elevating/lowering mechanism includes a servo cylinder. ### Claim at position 3 (depends on 1) 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. ### Claim at position 4 (depends on 1) 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. ### Claim at position 5 (depends on 1) 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. ### Claim at position 6 (depends on 1) 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. ### Claim at position 7 (depends on 1) 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. ### Claim at position 8 (depends on 6) 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. ### Claim at position 9 (depends on 7) 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. ### Claim at position 10 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. ### Claim at position 11 (depends on 2) 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. ### Claim at position 12 (depends on 2) 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. ### Claim at position 13 (depends on 3) 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. ### Claim at position 14 (depends on 11) 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. ### Claim at position 15 (depends on 2) 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. ### Claim at position 16 (depends on 3) 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. ### Claim at position 17 (depends on 4) 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. ### Claim at position 18 (depends on 11) 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. ### Claim at position 19 (depends on 12) 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. ### Claim at position 20 (depends on 13) 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.