液压虎钳设计

湖南生物机电职业技术学院毕业设计

液压虎钳设计

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2012年10月

目录

摘要 (2)

1绪论 (4)

1.1液压虎钳的实际意义 (4)

1.2液压虎钳的工作原理及优缺点 (5)

1.3钳工用液压台虎钳的总示意图 (5)

2 液压虎钳总体方案的设计 (6)

2.1液压虎钳的几种设计方案以及工作原理 (6)

2.2液压虎钳设计方案的优缺点 (7)

3液压虎钳各部分的设计 (8)

3.1液压缸的设计 (8)

3.2液压泵的设计 (10)

3.3液压油的选择 (12)

3.4液压虎钳钳身的设计 (14)

3.4.1活动钳身的设计 (14)

3.4.2固定钳身的设计 (15)

3.4.3台钳与工作台的联接设计 (16)

4液压虎钳的使用说明 (17)

5总结 (18)

6参考文献 (20)

7致谢词 (21)

摘要

1、液压台虎钳（hydraulic bench vice）是由液体压力驱动钳口运动的动力虎钳，是根据液压原理制成的。而传统的螺纹台虎钳是根据螺纹自锁原理制成的。液压台虎钳是对现有螺纹传动台虎钳的改进，主要用于批量生产，能够在较小的作用力下产生倍增的夹紧力，且能保证夹紧力大小和可靠性。这样就可以避免过去要夹紧一个较薄的零件时，因夹紧力不够以及没有办法确定调式的时间，对生产效率造成的影响。同时因能实现快速夹紧与快速松开，从而大大的提高生产效率。

2、液压台虎钳因其结构紧凑，在较小的作用力下能产生倍增的夹紧力且夹紧力稳定可靠等优点，正是因为有了诸多优于传统螺纹台虎钳的地方，液压台虎钳正逐步的取代传统的螺纹台虎钳。当然了，液压台虎钳与传统的螺纹台虎钳相比也还是有不足之处的。一是在成本上要比传统的台虎钳要贵，而且相对来说,制造复杂,操作也复杂一些;二是液压台虎钳的受力方向受到限制，较大的力（如冲击力）只能朝固定钳身方向，给操作者带来不便

关键词:液压原理螺纹自锁原理夹紧力

Abstract

The hydraulic bench vice is the improvement of the transmission bench vice of existing whorl , mainly used for producing by batch. It can realize clamping and unclamping fast, and can guarantee to clamp the intensity of strength. In this way it can avoid such situation that when clamping

a thin part in the past, the time go to the mode cannot confirm, and can make clamping and unclamping fast at the same time , so can producti efficiency in a high intensity. In order to make clamping and unclamping fast, make the traditional whorl into hydraulic transmission, the fixation of the activity pincers depend on embracing activity pincers body firmly through frictional force comes by the brake handle driving steel band brake lump. That realizes the fast movement of the activity pincers body,while clamped strength guaranteed by clamping the spring. We can guarantee to clamp the intensity of strength by adjusting the tight intensity of the spring. Compared with traditional whorl bench vice, the hydraulic bench vice has weak point. The first is more expensive than the traditional bench vice on the cost, and it is a little more complicated

in manufacture and operation. The second, the strength direction of hydraulic bench vice is limited, greater strength (such as shock power ) can only be in the body direction of the fixed pincers , bring inconvenience to operator. These weak points are still should be improved, and diligent is needed in this direction later.

Key words: Transmission of the whorl; Hydraulic transmission;Clamp strength