橡胶弹性夹头（涨套）由于其独特的设计和灵活的弹性，使其夹持力是传统全钢开槽夹头的2-3倍。无论工件尺寸大小，夹紧力总是平行而又均匀的分布在工件上，而不是集中在夹头工作孔的前后两端。而传统的全钢夹头就经常出现这样的问题（如下图所示）。夹块间的材料是耐用的合成橡胶化合物，通过硫化夹块的表面和通孔紧密地连接在一起。相比传统弹簧夹头的结构，其不受高温、冷却液和铁屑介入的影响，并能在其使用寿命期间保持足够的灵活性。Rubber- elastic collets unique in design and operation, the rubber-elastic collets can generate two to three times the gripping power of a conventional split-steel collets. Gripping force is uniform and parallel throughout the collets contact length and not concentrated at the nose or back as is frequently the case with split-steel collets. Construction is of durable synthetic rubber compound permanently bonded to hardened steel jaw insert surfaces and through-holes. It is unaffected by heat, coolants and cutting compounds and retains its flexibility over a long service life as compared to spring tempered metal designs.
橡胶弹性夹头 VS 普通弹簧夹头
普通弹簧夹头只有在等径夹持时才能获得最大夹持力。当工件大于或小于孔径时，工件的受力点就会失去平衡，这会大大降低夹持的力度和精度。而橡胶弹性夹头不管工件的外径偏差多大，都会均匀的与夹头接触承平衡的夹持力。Rubber-elastic collets VS conventional colletsConventional split-steel collets provide maximum gripping efficiency only at actual bored or nominal capacity. They lose parallelism when chucking bars even a few thousandths over or under this capacity. This significantly reduces gripping strength and accuracy. Rubber-elastic collets exert uniform gripping pressure throughout the collets contact length regardless of bar tolerance deviations.
特点
● 每一个夹块都会对工件表面施加均匀、精确的夹持力，其夹持力是普通弹簧夹头的3倍。
● 耐用合成橡胶的一体式结构，保证其灵活性，并能抵制切削热、冷却液和切削液的腐蚀。
● 夹块为一体成形切割而成，其具更大的硬度和耐磨性，故夹持的刚性、精度是普通弹簧夹头所无法比拟的。
● 橡胶夹头可以密封工件与机器主轴免受磨料和切屑的损伤。可以作为止水夹头使用，防止冷却液的外溢。
● 夹头硬度HRC58-60，且经过深冷处理，提高产品精度稳定性。旋转跳动精度≤10u,夹持范围±0.5mm
FEATURES:
● Parallel jaw insert surfaces exert uniform, accurate gripping force up to three times greater than can be achieved with split-steel collets.
● Durable one-piece construction. Synthetic rubber retains flexibility and resists deterioration from heat, coolants and cutting compounds.
● Steel jaw inserts precision ground to assure maximum gripping accuracy. Hardened for greater wear resistance than split steel collets.
● Seal collets and machine spindle to protect from abrasive particles and sward.Automatically seals tool O.D. to permit coolant flow through tool reducing wear.
● Steel jaw hardness HRC58-62 , through cryogenic treatment to improve product stability.Runout tolerance ≤10u,Clamping tolerance nominal diameter ±0.5mm