# US 2014/0190292 A1 · Caulking apparatus > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0190292 A1 - Document ID: US20140190292A1 - Status: Published application - Kind: A1 - Application number: 14/153,622 - Filed: 2014-01-13 - Published: 2014-07-10 - Earliest claimed: 2009-03-13 - Assignees: Toyota Jidosha Kabushiki Kaisha - Applicants: Toyota Jidosha Kabushiki Kaisha - Inventors: Takeshi ISHIDA; Taro FURUKUBO - Web page: https://patentgrep.com/patent/US20140190292A1 ## CPC - B23P 15/003: {bearings (see also F16C33/00)} - B21D 39/04: of tubes with tubes; of tubes with rods {(crimped pipe joints as such F16L13/14)} - B21J 9/025: {with rolling or wobbling dies} - B21K 25/00: Uniting components to form integral members, e.g. turbine wheels and shafts, caulks with inserts, with or without shaping of the components (uniting by interference- or press-fitting B23P11/02, B21K19/02) - F01L 13/0015: {for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque} - F16C 35/067: Fixing them in a housing (with interposition of an element F16C35/07) - F16H 25/20: Screw mechanisms (with automatic reversal F16H25/12) - F01L 2820/032: Electric motors - F16C 19/184: {in O-arrangement} - F16C 2361/61: Toothed gear systems, e.g. support of pinion shafts - Y10T 29/49647: Plain bearing - Y10T 29/49908: Joining by deforming - Y10T 74/18568: Reciprocating or oscillating to or from alternating rotary - Y10T 74/18576: including screw and nut - Y10T 156/1002: with permanent bending or reshaping or surface deformation of self sustaining lamina - Y10T 428/13: Hollow or container type article [e.g., tube, vase, etc.] - Y10T 428/24479: including variation in thickness - B23P: METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS (arrangements for copying or controlling B23Q) - 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) - B21J: FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES (rolling of metal B21B; making particular products by forging or pressing B21K; cladding or plating B23K; finishing surfaces by hammering B23P9/04; compacting surfaces by blasting with particulate material B24C1/10; general features of presses, presses for consolidating scrap B30B; furnaces in general F27) - B21K: MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS (making particular articles by working sheet metal without essentially removing material B21D; processing wire B21F; making pins, needles or nails B21G; making particular articles by rolling B21H; forging machines, pressing machines, hammering machines, in general B21J; making chains B21L; plating B23K) - F01L: CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES - F16C: SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS - F16H: GEARING - Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION ## Abstract During a caulking process, a pressure is applied to a pressure receiving shoulder portion in the same direction as a direction of a clamping force generated by a caulking portion. The clamping force for holding an outer race can thereby be increased. Also, a pressure receiving surface of the pressure receiving shoulder portion is set higher than an end face. Thus, no pressure resulting from plastic deformation in a direction perpendicular to the direction of the clamping force of the caulking portion is generated. In addition, a groove is formed between the pressure receiving shoulder portion and an end serving as the caulking portion. ## Claims ### Claim 1 A caulking apparatus that bends an end of a workpiece along a corner portion of a member by a caulking surface of a caulking roller, applies a pressure to a pressure receiving shoulder portion, which is formed opposite a bent side of the end, in a same direction as a caulking pressure applied to the caulking surface to thereby carry out a caulking process and hence form a caulked portion, and carries out a caulking process of holding the held member along a base of the workpiece by a clamping force of the caulked portion, the caulking apparatus comprising: a workpiece mount; a rolling pressurization unit that presses the workpiece arranged on the workpiece mount as the caulking roller is rolled over the workpiece; a caulking process load state detection unit that detects a caulking process load applied by the caulking roller; a specific change detection unit that detects a specific change in the caulking process load detected by the caulking process load state detection unit that indicates the member begins to be strained; and a caulking process changing unit that changes a caulking process for the workpiece based on a timing at which the specific change detection unit detects the specific change. ### Claim 2 (depends on 1) The caulking apparatus according to claim 1, wherein the caulking process changing unit starts a caulking termination process to change the caulking process. ### Claim 3 (depends on 1) The caulking apparatus according to claim 1, wherein the caulking process load state detection unit detects a change in a caulking load with respect to a moving distance of the caulking roller as a caulking process load created by the caulking roller. ### Claim 4 (depends on 3) The caulking apparatus according to claim 3, wherein the specific change detection unit detects a state of an abrupt increase in the caulking load as a state of an occurrence of a specific change indicating that the member begins to be strained. ### Claim 5 (depends on 1) The caulking apparatus according to claim 1, wherein the caulking process load state detection unit detects a change in a caulking torque with respect to a moving distance of the caulking roller as a caulking process load created by the caulking roller. ### Claim 6 (depends on 5) The caulking apparatus according to claim 5, wherein the specific change detection unit detects an abrupt decrease in the caulking torque as a specific change indicating that the member begins to be strained. ### Claim 7 (depends on 1) The caulking apparatus according to claim 1, wherein: the member is a bearing; and the workpiece is a housing that accommodates a rotary member rotatably supported by the bearing, or a bearing holder arranged in the housing. ### Claim 8 (depends on 7) The caulking apparatus according to claim 7, further comprising: a rotation-translation conversion actuator, wherein: the bearing and the housing or the bearing holder are a bearing and a housing or a bearing holder of the rotation-translation conversion actuator respectively; the housing is mounted on a driven object device; and the rotation-translation conversion actuator includes an output shaft, which moves in an axial direction of the workpiece through rotation of the rotary member, and protrudes outward from the housing to transmit a driving force from the output shaft to the driven object device. ### Claim 9 (depends on 8) The caulking apparatus according to claim 8, wherein: the rotary member is a nut of a planetary differential screw type rotation-translation converter; the output shaft is a sun shaft; a planetary shaft is arranged between the nut and the sun shaft; and the sun shaft and the planetary shaft mesh with the nut in a manner to perform rotation-translation conversion. ### Claim 10 (depends on 8) The caulking apparatus according to claim 8, wherein the driven object device is an internal combustion engine.