CLAMPER MECHANISM FOR MOTION GUIDE DEVICE

• Main Authors: MATSUDAIRA TADASHI, MURAKAMI YOSHINORI, OISHI YOSHIRO, ABE REIJI, KANEKO AKITO, FUKUSHIMA HAJIME, MOCHIZUKI HIROAKI, KURIBAYASHI HIROOMI
• Format: Patent
• Language: English; Japanese
• Published: 12.11.2020
• Subjects: BEARINGS; BLASTING; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOTDIRECTED TO A PARTICULAR RESULT; DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g.ARRANGEMENTS FOR COPYING OR CONTROLLING; ELEMENTS OR CRANKSHAFT MECHANISMS; ENGINEERING ELEMENTS AND UNITS; FLEXIBLE SHAFTS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MACHINE TOOLS; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OFPARTICULAR DETAILS OR COMPONENTS; MECHANICAL ENGINEERING; METAL-WORKING NOT OTHERWISE PROVIDED FOR; PERFORMING OPERATIONS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; SHAFTS; THERMAL INSULATION IN GENERAL; TRANSPORTING; WEAPONS

To exert a stable clamp force without affecting the performance of a motion guide device and a life of the device.SOLUTION: A clamper mechanism 30 for a motion guide device comprises a clamper block 31 having a tapered face 31a, a clamper rolling body 32 arranged between the tapered face 31a and left-and-right both side faces of a raceway member 11, and a clamper rolling body cage 33 attached to the clamper block 31 via an elastic member 34. When an elastic force exerted by the elastic member 34 acts in a direction in which the clamper block 31 and the clamper rolling body cage 33 are separated from each other, the clamper block 31 is brought into a constricted state with respect to the raceway member 11 due to the bite-in of the clamper roller body 32 to the tapered face 31a, and when an external force which withstands the elastic force exerted by the elastic member 34 acts in the direction, the clamper block 31 is brought into a non-constricted state with respect to the raceway member 11 since the clamper roller body 32 is brought into a free state within the tapered face 31a.SELECTED DRAWING: Figure 5 【課題】運動案内装置の性能や装置寿命に影響を与えずに安定したクランプ力を発揮させる。【解決手段】運動案内装置用クランパ機構３０は、テーパー面３１ａを有するクランパブロック３１と、テーパー面３１ａと軌道部材１１の左右両側面との間に配置されるクランパ用転動体３２と、クランパブロック３１に対して弾性部材３４を介して取り付けられるクランパ用転動体保持器３３とを備え、弾性部材３４が及ぼす弾性力が、クランパブロック３１とクランパ用転動体保持器３３を離す方向に作用するときには、クランパ用転動体３２がテーパー面３１ａに噛み込むことでクランパブロック３１が軌道部材１１に対して拘束状態となり、弾性部材３４が及ぼす弾性力に抗する外力が作用したときには、クランパ用転動体３２がテーパー面３１ａ内で自由状態となることでクランパブロック３１が軌道部材１１に対して非拘束状態となる。【選択図】図５