Automatic clamping device used for plastic pipe cutting machine

Abstract

The invention relates to an automatic clamping device used for a plastic pipe cutting machine. The automatic clamping device comprises four upper clamping units, two lower supporting wheel units, a synchronous connecting rod and a driving motor, each upper clamping unit comprises a pushing cylinder, an upper sliding seat, upper guide columns and a Haff, the top of each pushing cylinder is sequentially connected with the top of the corresponding upper sliding seat and the corresponding Haff, each pushing cylinder is connected with a control portion of the cutting machine, the upper guide columns are arranged at two ends of the pushing cylinders, two ends of the upper sliding seats are connected with the upper guide columns slidably, each lower supporting wheel unit comprises a screw lifter, lower guide columns, a lower sliding seat and a supporting wheel set, the top end of each screw lifter is sequentially connected with the top end of the corresponding lower sliding seat and the corresponding supporting wheel set, the lower guide columns are arranged on two sides of the screw lifters, two sides of the lower sliding seats are slidably connected with the lower guide columns, the synchronous connecting rod is connected between two screw lifters, and the driving motor is connected with the synchronous connecting rod. Compared with the prior art, the automatic clamping device has the advantages of being simple to operate, accurate in control, convenient to maintain, low in cost and the like.

Description

technical field [0001] The invention relates to a clamping device for a cutting machine, in particular to an automatic clamping device for a plastic pipe material cutting machine. Background technique [0002] At present, there are two types of clamping devices for plastic pipes on the market: [0003] (1) Aluminum Hafur clamping device: This is a kind of clamping device driven by a cylinder, so that two pieces of aluminum semicircular Hafur move towards each other through the guiding effect of the guide post, and at the same time, it is adjusted by the limit block fixed on the guide post. Harfur clamping depth, so as to complete the entire clamping action. At present, the existing clamping devices of this structure on the market can be divided into two types: one is the clamping of the upper and lower aluminum harfurs, and this type of clamping device is under the action of the cylinder, and the two pieces of aluminum harfurs move towards each other up and down; The other...

AI Technical Summary

Problems solved by technology

The above two clamping devices have the following common disadvantages: 1. Every time the plastic pipe cutting machine needs to replace the aluminum Hafur with the corresponding specification after changing the pipe specification, this will seriously affect the work efficiency; 2. Aluminum Hafur Furan is easy to crush the surface of the plastic pipe when it is clamped, leaving marks on the surface of the plastic pipe and affecting the surface finish of the plastic pipe

But this kind of clamping device has the following disadvantages: 1. Because this kind of clamping device needs to ensure that the Harfur and the pipe have a sufficient contact area, it generally ensures that there are more than 6 sets of clamping groups at the front and rear of the cutting machine, which will consume a lot of water. Increase the cost; 2. In order to ensure that the plastic pipe is concentric with the cutting machine during work, each clamping group is set to have an adjustable stroke, which will greatly increase the workload when changing the pipe specification

Images