取消了楔块机构，简化了机构，提高可靠 性。
The mechanism is simplified because the wedge block mechanism is cancelled, improving the reliability of the device.
通过对夹具的分析，决定采用由楔块-滚柱联动机构组成的气动夹具来解决生产中的实际问题。
Through the analysis of jig, the air operated jig was used which is composed by the voussoir-roller aggregate unit to solve the present production problems.
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