Needling apparatus

Abstract

A needling device includes: a needling assembly, a support, a base and a bearing frame. The base is provided inside the bearing frame, and the base is for bearing the preform body. The support is provided with a guide rail. The needling assembly is slidably connected to the support, and may slide along the guide rail, to needle the preform body. The needling assembly may perform an all-around needling operation to the circular-arc surface of the preform body, and depth and density of the needling by the needling assembly to the circular-arc surface of the preform body are even, which may prevent deformation and layering of the preform body during the deposition, to improve the processing quality of the preform body.

1 . A needling device, for processing a preform body, wherein the needling device comprises: a needling assembly, a support, a base and a bearing frame;
 the base is provided inside the bearing frame, and the base is for bearing the preform body;   the support is connected to the bearing frame, and the support is opposite to the base and the preform body; and   the needling assembly is slidably connected to the support, and is for needling the preform body.   
     
     
         2 . The needling device according to  claim 1 , wherein the support is movably connected to the bearing frame. 
     
     
         3 . The needling device according to  claim 1 , wherein the support is provided with a guide rail, and the guide rail comprises at least one circular-arc section. 
     
     
         4 . The needling device according to  claim 1 , wherein the needling assembly comprises: a driving assembly, a needling head and a piercing needle;
 the piercing needle is connected to the needling head, the needling head is connected to the driving assembly, and the needling head is slidably connected to the guide rail on the support; and   the driving assembly comprises a first driving mechanism, the first driving mechanism is connected to the needling head, and the first driving mechanism is for driving the needling head to drive the piercing needle to needle the preform body.   
     
     
         5 . The needling device according to  claim 4 , wherein the driving assembly further comprises a second driving mechanism, and the second driving mechanism is slidably connected to the guide rail on the support; and
 the second driving mechanism is for driving the needling head to slide along the guide rail.   
     
     
         6 . The needling device according to  claim 5 , wherein the guide rail is provided with a rack; and
 the second driving mechanism comprises an electric motor and a gear, the electric motor is rotatably connected to the gear, the gear is engaged with the rack, and the electric motor is for driving the gear to move along the rack, to cause the needling head to slide along the guide rail.   
     
     
         7 . The needling device according to  claim 4 , wherein the needling head is further provided with a clamping mechanism; and
 the clamping mechanism comprises one or more groups of clamping wheels that are opposite to each other, and each of the groups of the clamping wheels clamp the needling head against the guide rail, and are slidable along the guide rail.   
     
     
         8 . The needling device according to  claim 1 , wherein the base is provided with an installation column, and the installation column is for installing the preform body;
 the base is further provided with a rotating mechanism, an elevating mechanism and a moving mechanism; and   the rotating mechanism, the elevating mechanism and the moving mechanism are connected to the installation column, the rotating mechanism is for driving the preform body to rotate around an axis of the preform body, the elevating mechanism is for driving the preform body to move in a vertical direction, and the moving mechanism is for driving the preform body to move in a horizontal direction.   
     
     
         9 . The needling device according to  claim 2 , wherein the bearing frame is provided with a sliding rail, a sliding block is provided on one side of the support that is close to the bearing frame, and the sliding block is embedded inside the sliding rail, and is slidable along the sliding rail. 
     
     
         10 . The needling device according to  claim 3 , wherein the support comprises a frame body and a detaching end;
 the guide rail is provided on the frame body;   the frame body is detachably connected to the detaching end, one end of the frame body that is close to the detaching end is provided with an opening, and the opening is for realizing detaching and attaching of the needling assembly from and to the guide rail; and   both of the frame body and the detaching end are slidably connected to the bearing frame.