How to design a horizontal toggle clamp
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How to design a horizontal toggle clamp

Views: 0     Author: Site Editor     Publish Time: 2021-10-04      Origin: Site

How to design a horizontal toggle clamp

A horizontal toggle clamp is a clamping device used to fix the workpiece during the machining process so that it has good stability and repeatability. It is widely used in the production and processing of various mechanical parts and plays a key role in improving production efficiency and improving the quality of workpieces. The basic principle of horizontal toggle clamp positioning. Generally, objects have six degrees of freedom in three-dimensional space. The positioning of objects requires at least three directions. Some workpieces need to be generated after processing and positioning before they are generated. We need to define our processing benchmarks, which are called transition benchmarks, and transition benchmarks are generally processed in subsequent processes. Below we introduce in detail how to design a horizontal toggle clamp.


The order of drawing the overall picture

Analyze the structural manufacturability of main parts

Mark the dimensions on the general drawing of the fixture


The order of drawing the overall picture

Use a double-dotted line to draw the outline and main surface of the horizontal toggle clamp. If necessary, use a cross-sectional view.


The cross-sectional view shows the internal structure, the machining allowance of the machined surface is indicated by thick solid lines or mesh lines, and the workpiece is regarded as a transparent body. Then, according to the shape and position of the workpiece, the positioning parts, tool setting parts, guide parts, clamping mechanism, orienting parts of the fixture are presented in sequence, and finally, a horizontal toggle clamp is given to make it an organic whole fixture.


The view configuration and selection on the general map should be able to fully express the structure of each part of the entire horizontal toggle clamp. After the overall design, you should also consider: According to the size and weight of the fixture, consider whether it is convenient to handle and lift the fixture. If necessary, you should design a special device for convenient transportation and lifting.


Analyze the structural manufacturability of main parts

Horizontal toggle clamp manufacturing belongs to the nature of single-piece production, and the manufacturing precision of its main parts is relatively high. The workload in the preparation of production technology is quite large. Therefore, when designing, attention should be paid to selecting standard parts and general parts as much as possible, so that non-standard parts are occupied. The proportion is the smallest, and attention should be paid to the simple structure of the fixture, easy maintenance, and easy manufacturing, assembly, and debugging of special parts.


Mark the dimensions on the general drawing of the fixture

The dimensions that should be marked on the general drawing are the outline dimensions of the horizontal toggle clamp (including the dimensions of the movement limit position of the machine); the matching dimensions between the positioning surface of the workpiece and the positioning parts; the contact dimensions of the horizontal toggle clamp and the tool; and the connecting parts of the machine tool contact size; another assembly size.


The design must ensure the integrity of the horizontal toggle clamp to ensure the size requirements of the parts; keep the surface of the horizontal toggle clamp clean; prevent the horizontal toggle clamp failure in advance and reduce the maintenance time; ensure safe operation.


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