SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a fixture is used in numerical control milling to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: a clamping mechanism for numerical control milling comprises a clamping structure, wherein the clamping structure comprises a motor, the motor is electrically connected through an external power supply, the clamping structure further comprises a rack, a clamping main body and a workpiece, a lower end cylinder of the workpiece is fixedly clamped at the inner end of the upper part of the clamping main body, and the lower end of the clamping main body is fixedly installed with the rack; the rack comprises a rack body; the utility model discloses a motor, including the tight main part of clamp, the tight main part of clamp includes screw thread post, nut, bracing piece, guide arm, splint, tightening ring and fixing base, the lower extreme of screw thread post is as an organic whole with the rotor fixed connection of motor, screw thread post screw thread is installed in the inner of nut, the screw thread post runs through the nut, nut slidable mounting is in the inner of bracing piece, bracing piece and guide arm all are provided with threely, bracing piece and guide arm fixed connection are as an organic whole, splint are provided with threely, splint slip cup joint the outer wall of installing at the guide arm, tightening ring slip cup joint the outer wall of installing at splint, tightening ring's lower extreme fixed mounting is in the upper end of nut, the shell lower extreme fixed mounting of motor is in the upper end of fixing base, fixing base fixed mounting is inboard in the lower part of support body.
Preferably, the rack further comprises a pair of first fixing frames, the side ends of the first fixing frames are fixedly connected to the lower end of the rack body, and the inner ends of the first fixing frames are fixedly connected to the outer ends of the fixing seats.
Preferably, the clamping main body further comprises a second fixing frame, the second fixing frame is sleeved on the outer wall of the threaded column in a sliding mode, and the outer end of the second fixing frame is fixedly connected to the inner end of the lower portion of the supporting rod.
Preferably, the clamping main body further comprises three pull rods, the upper ends of the pull rods are fixedly connected to the lower end of the tightening ring, and the lower ends of the pull rods are fixedly connected to the upper end of the nut.
Preferably, the clamping main body further comprises a sliding groove, the inner end of the supporting rod is arranged in the sliding groove, and the nut is mounted at the inner end of the sliding groove in a sliding and clamping mode.
Compared with the prior art, the beneficial effects of the utility model are as follows:
when a user needs to clamp a workpiece, the external power supply is used for driving the motor to drive the threaded column to rotate, the nut is pulled downwards through the rotation of the threaded column, so that the nut slides downwards along the supporting rod, the tightening ring is pulled downwards through the nut, the tightening ring slides downwards along the outer wall of the clamping plate, the clamping plate slides downwards through the tightening ring, the clamping plate is used for inwards extruding a cylinder at the lower end of the workpiece, and the purpose of extruding and fixing the workpiece through the clamping plate is achieved; when the machined part needs to be loosened and taken down after being machined, the external power supply is utilized to drive the motor to drive the threaded column to rotate reversely, the tightening ring is driven to move upwards to loosen the clamping plate in the same way, and finally the machined part is taken down, so that the purpose of conveniently clamping or loosening the machined part is achieved, and the stability of the position center of the clamped machined part is improved by utilizing the clamping mode that the clamping plate is clamped inwards at the same time; the fixed seat is fixedly arranged with the frame body through a first fixed frame; the second fixing frame is used for increasing the running stability of the threaded column; the tightening ring is fixedly connected with the nut through a pull rod; the nut is connected with the sliding groove in a sliding and clamping mode, and the nut is prevented from rotating along with the threaded column.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships that are relative to each other, are merely for convenience of description and to simplify the description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Referring to fig. 1-3, the present invention provides an embodiment: a clamping mechanism for numerical control milling comprises a clamping structure 1, wherein the clamping structure 1 comprises a motor 16, the motor 16 is electrically connected through an external power supply, the clamping structure 1 further comprises a rack 2, a clamping main body 3 and a workpiece 4, a lower end cylinder of the workpiece 4 is fixedly clamped at the inner end of the upper part of the clamping main body 3, and the lower end of the clamping main body 3 is fixedly installed with the rack 2; the frame 2 comprises a frame body 5; the clamping main body 3 comprises a threaded column 8, a nut 9, a supporting rod 10, a guide rod 11, clamping plates 12, tightening rings 14 and a fixing seat 17, the lower end of the threaded column 8 is fixedly connected with a rotor of a motor 16 into a whole, the threaded column 8 is installed at the inner end of the nut 9 in a threaded mode, the threaded column 8 penetrates through the nut 9, the nut 9 is installed at the inner end of the supporting rod 10 in a sliding mode, the number of the supporting rods 10 and the number of the guide rod 11 are both three, the supporting rod 10 is fixedly connected with the guide rod 11 into a whole, the number of the clamping plates 12 are three, the clamping plates 12 are installed on the outer wall of the guide rod 11 in a sliding and sleeved mode, the tightening rings 14 are installed on the outer wall of the clamping plates 12 in a sliding and sleeved mode, the lower end of the tightening rings 14 is fixedly installed at the upper end of the nut 9, the lower end of a shell of the motor 16 is fixedly installed at the upper end of the fixing seat 17, and the fixing seat 17 is fixedly installed on the inner side of the lower portion of the frame body 5; in the use process, when a user needs to clamp the workpiece 4, the external power supply is used for driving the motor 16 to drive the threaded column 8 to rotate, the nut 9 is pulled downwards through the rotation of the threaded column 8, the nut 9 slides downwards along the support rod 10, the nut 9 pulls the tightening ring 14 downwards, the tightening ring 14 slides downwards along the outer wall of the clamping plate 12, the clamping plate 12 is pulled downwards through the tightening ring 14, the column body at the lower end of the workpiece 4 is pressed inwards through the clamping plate 12, and therefore the purpose of pressing and fixing the workpiece 4 through the clamping plate 12 is achieved; when the machined part 4 needs to be loosened and taken down after being machined, the external power supply driving motor 16 is utilized to drive the threaded column 8 to rotate reversely, the tightening ring 14 is driven to move upwards to loosen the clamping plate 12 in the same way, and finally the machined part 4 is taken down, so that the purpose of conveniently clamping or loosening the machined part 4 is achieved, and the stability of the position center of the clamped machined part 4 is improved by utilizing the clamping mode that the clamping plate 12 is clamped inwards at the same time.
The rack 2 further comprises a pair of first fixing frames 6, the first fixing frames 6 are arranged, the side ends of the first fixing frames 6 are fixedly connected to the lower end of the rack body 5, and the inner ends of the first fixing frames 6 are fixedly connected to the outer ends of the fixing seats 17; the fixed seat 17 is fixedly installed with the frame body 5 through the first fixed frame 6.
The clamping main body 3 further comprises a second fixing frame 7, the second fixing frame 7 is sleeved on the outer wall of the threaded column 8 in a sliding mode, and the outer end of the second fixing frame 7 is fixedly connected to the inner end of the lower portion of the supporting rod 10; the second fixing frame 7 is used for increasing the running stability of the threaded column 8.
The clamping main body 3 further comprises three pull rods 13, the upper ends of the pull rods 13 are fixedly connected to the lower end of the tightening ring 14, and the lower ends of the pull rods 13 are fixedly connected to the upper end of the nut 9; the tightening ring 14 is fixedly connected with the nut 9 through a pull rod 13.
The clamping main body 3 further comprises a sliding chute 15, the sliding chute 15 is formed in the inner end of the supporting rod 10, and the nut 9 is installed at the inner end of the sliding chute 15 in a sliding clamping mode; the nut 9 is connected with the sliding groove 15 in a sliding and clamping mode, and the nut 9 is prevented from rotating along with the threaded column 8.
The working principle is as follows: in the use process, when a user needs to clamp the workpiece 4, the external power supply is used for driving the motor 16 to drive the threaded column 8 to rotate, the nut 9 is pulled downwards through the rotation of the threaded column 8, the nut 9 slides downwards along the support rod 10, the nut 9 pulls the tightening ring 14 downwards, the tightening ring 14 slides downwards along the outer wall of the clamping plate 12, the clamping plate 12 is pulled downwards through the tightening ring 14, the column body at the lower end of the workpiece 4 is pressed inwards through the clamping plate 12, and therefore the purpose of pressing and fixing the workpiece 4 through the clamping plate 12 is achieved; when the machined part 4 needs to be loosened and taken down after being machined, the external power supply driving motor 16 is utilized to drive the threaded column 8 to rotate reversely, the tightening ring 14 is driven to move upwards to loosen the clamping plate 12 in the same way, and finally the machined part 4 is taken down, so that the purpose of conveniently clamping or loosening the machined part 4 is achieved, and the stability of the position center of the clamped machined part 4 is improved by utilizing the mode that the clamping plate 12 clamps inwards at the same time; the fixed seat 17 is fixedly installed with the frame body 5 through the first fixed frame 6; the second fixing frame 7 is used for increasing the running stability of the threaded column 8; the tightening ring 14 is fixedly connected with the nut 9 through a pull rod 13; the nut 9 is connected with the sliding groove 15 in a sliding and clamping mode, and the nut 9 is prevented from rotating along with the threaded column 8.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.