| 摘要 |
1,245,695. Bushing assembly machines. GENERAL TIRE & RUBBER CO. 11 Feb., 1969 [25 March, 1968], No. 7407/69. Heading F2S. A machine (Fig. 1, not shown) for assembling a cured annular elastomeric insert 67 under radial compression between a rigid outer sleeve 63 and a rigid inner sleeve 61 consists of two relatively movable assemblies 7, 9 one of which has a permanently attached as opposed to the more usual floating, mandrel 21, which can however move relative to its associated assembly. In operation, the components of the bushing are loaded on to the nesting assembly 9, and the mandrel assembly 7 is advanced. The stop 15 forces the insert 67 into the sleeve 63 and the mandrel 21 advances through the insert until the inner sleeve 61 is gripped axially between it and the plunger 37 of the nesting assembly 9. The plunger 37 is then moved upwards relative to its assembly and effects assembly of the bushing. The plunger 37, mandrel 21-and the two assemblies are actuated by hydraulic or pneumatic rams and controlled by electric switches. |
