2017年1月15日星期日

Helical Clamp

Helical Clamp   
 Precision CNC machining parts  Used as intermediate screw transmission components are collectively referred to as the clamping screw clamping body organs. Because of its simple structure reliable clamping common good and as a result of the small helix angle spiral of self-locking clamping body good clamping force and the clamping itinerary are larger fixture on manual with the most a clamping body.   
  1. Simple screw clamp body
  The simplest spiral as a result of the direct use of clamping bodies pressed workpiece screw head so easy to Precision CNC machining parts  damage the surface of the work piece under pressure or driven rotating work piece. So often in the head with swinging Press. Press with the work piece as a result of friction between the Press and the torque is greater than the friction between the screw torque screw together with the Press will not rotate. 
   Clamping action slow time-consuming loading and unloading the work piece is a single spiral Another drawback of the Clamp. To overcome this shortcoming the rapid clamping bodies can be.
 2.Clamp screw plate    
  Precision CNC machining parts Institutions in the clamping the use of spiral plate is very common common structure of the spiral structure of a typical plate size has been standardized the designer can refer to the relevant national standards and fixture design manual design. 
 Precision CNC machining parts


  

2017年1月8日星期日

The basic requirements for clamping device

The basic requirements for clamping device
   Precision CNC machining parts Without damaging the work piece positioning accuracy and quality assurance process under the premise of clamping devices should be enabled to:   
  1. The size of the appropriate clamping force. It is necessary to ensure that the work piece in the whole process of its stable position vibration small but also so that the work piece does not produce excessive clamping deformation.   
  2. Technology is good. Precision CNC machining parts The complexity of the clamping device should be suited to the production of the Program to ensure production efficiency its structure should be kept simple easy to manufacture and maintenance. 
    3. Good use. The operation of clamping device should be convenient safe and labor-saving.
 Third the basic Clamp
   The original force into a clamping force through the clamping body to achieve.Among the many institutions in the clamping wedge oblique spiral and by their eccentric combination of the most common application of clamping.  
  (A) Wedge Clamp   
  Wedge used as components or transmission of the clamping device clamping body known as the Wedge Clamp.    
  Precision CNC machining parts Wedge clamping directly the oblique wedge of the self-locking conditions are:Wedge angle smaller than the work piece Wedge Wedge and folders between the concrete and the friction angle.
  Namely: a f1+f2  
   In order to ensure a reliable self-locking manual clamping generally take a =6 °~ 8 °. Using pneumatic or hydraulic device drivers do not need the self-locking oblique wedge it is desirable to a =15 ° ~35 °. 

    Wedge clamp is simple in structure than by large self-locking features such as performance it is widely available.

precision metal parts