Riveting machine

Abstract

A riveting machine includes a male mold having a punch and a pair of abutting bars located proximate the punch, a female mold having a positioning pin aligning with the rivet, a mounting member slidably attached to the male mold along a vertical direction, a pair of moving members slidably attached to the mounting member along a horizontal direction, and a pair of clamping members respectively and slidably attached to the moving members and located between the moving members. A pair of first slanting guiding walls is respectively formed at the moving member and the corresponding clamping member to allow the clamping member to slide relative to the corresponding moving member, and a pair of second slanting guiding walls is respectively formed at the moving members and the abutting bar to allow the moving member to slide relative to the corresponding abutting bar.

What is claimed is: 
     
         1 . A riveting machine comprising:
 a male mold comprising a punch configured to support a rivet thereon, and a pair of abutting bars located proximate the punch;   a female mold comprising a positioning pin aligned with the rivet;   a mounting member slidably attached to the male mold along a vertical direction;   a pair of moving members slidably attached to the mounting member along a horizontal direction;   a pair of clamping members, each of the pair of clamping members slidably attached to a corresponding one of the moving members and located between the pair of moving members forming a pair of first slanting guiding walls to allow each of the pair of clamping members to slide relative to the corresponding one of the moving members, a pair of second slanting guiding walls extend from a corresponding abutting bar to allow the pair of moving members to slide relative to the corresponding abutting bar; and   a work piece having a through hole, wherein when the work piece is placed on the pair of clamping members, the positioning pin extends through the through hole to abut the rivet, the female mold moves toward the male mold to urge the pair of clamping members to slide toward each other to clamp the rivet therebetween, the mounting member is urged to move vertically toward the male mold, the pair of moving members are urged to slide away from each other, and each of the pair of clamping members move away from each other to allow the punch to pass therethrough to move the rivet in the through hole of the work piece.   
     
     
         2 . The riveting machine of  claim 1 , wherein the clamping members each defines an opening in a lower portion thereof to cooperatively receive the punch therein, a top portion of the clamping member defines a clamping hole located above the opening, to clamp the rivet. 
     
     
         3 . The riveting machine of  claim 1 , wherein the mounting member comprises a frame, and a pair of U-shaped brackets attached to two opposite ends of the frames, the frame defines a rectangular opening therein to allow the punch and the abutting bars extending there through, the moving members are respectively and slidably attached to the brackets. 
     
     
         4 . The riveting machine of  claim 3 , wherein the male mold comprises a plurality of connecting hole beside the punch to receive a plurality of third resilient members therein, the third resilient members are sandwiched between the male mode and the frame. 
     
     
         5 . The riveting machine of  claim 3 , wherein each moving member comprises a first block slidably received in the corresponding bracket, and a second block attached to a bottom of the first block and aligning with the rectangular opening of the frame, each bracket defines a guiding slot in a lower portion thereof, each first block comprises a sliding bar received in the corresponding guiding slot and capable of sliding horizontally. 
     
     
         6 . The riveting machine of  claim 5 , wherein a first resilient member is located between each bracket and the corresponding first block. 
     
     
         7 . The riveting machine of  claim 5 , wherein each first block defines a T-shaped guiding hole extending through top and bottom surfaces thereof, and a cutout is defined in an end wall of the first block away from the corresponding bracket and communicating with the guiding hole, each clamping member comprises a guiding plate slidably received in the corresponding guiding hole and a clamping block slidably received in the corresponding cutout, the first guiding walls are respectively and slantingly formed at an inner side of the guiding hole away from the cutout and the guiding plate. 
     
     
         8 . The riveting machine of  claim 5 , wherein each the second block comprise a substantially semi-cylindrical cutout defined therein and aligning with the corresponding guiding hole, the semi-cylindrical cutout extends through an end wall of the second block away from the bracket. 
     
     
         9 . The riveting machine of  claim 8 , wherein each the second block comprise a locating hole located beside the semi-cylindrical cutout to receive a second resilient member therein, the second resilient is sandwiched between the second block and the corresponding clamping member. 
     
     
         10 . The riveting machine of  claim 5 , wherein the second guiding walls are respectively and slantingly formed at a lower portion the second block and a top portion of the corresponding abutting bar.