CN-224223014-U - Nozzle replacement device

CN224223014UCN 224223014 UCN224223014 UCN 224223014UCN-224223014-U

Abstract

The utility model discloses a nozzle replacing device which comprises a mounting seat provided with a mounting hole, a rotating shaft penetrating through the mounting hole and capable of rotating, a first clutch part and a second clutch part sleeved on the rotating shaft, wherein the first clutch part can rotate along with the rotating shaft, adjacent ends of the first clutch part and the second clutch part are connected through clutch teeth, a nozzle seat sleeved on the rotating shaft and extending out of the rotating shaft, one side of the nozzle seat, which is away from the second clutch part, is provided with a limiting hole for containing a nozzle, the nozzle seat is connected with the second clutch part through a limiting block and a limiting groove which are mutually inserted, and an elastic piece sleeved on the rotating shaft and positioned between the nozzle seat and the second clutch part. When the device is used for installing the nozzle for the cutting head, the nozzle in the nozzle seat responds to the rotation of the rotating shaft until the friction force between the first clutch part and the second clutch part is smaller than the resilience force of the elastic piece, and the second clutch part is separated from the first clutch part, so that the nozzle and the cutting head reach the preset torque.

Inventors

GU YUCHAO
YANG CHUNPENG
DU PING
LI ZHENGUANG
YU JIANG

Assignees

苏州瑞铁激光科技有限公司

Dates

Publication Date: 20260512
Application Date: 20250512

Claims (10)

1. A nozzle replacement apparatus for replacing a nozzle for a laser cutting head, comprising: the mounting seat is provided with at least one mounting hole; The rotating shaft is rotatably arranged in the mounting hole in a penetrating manner; the clutch device comprises a first clutch part and a second clutch part which are sleeved on the rotating shaft, the first clutch part is connected with the rotating shaft and can rotate along with the rotating shaft, adjacent ends of the first clutch part and the second clutch part are connected through clutch teeth, and the first clutch part drives the second clutch part to rotate through the clutch teeth; The nozzle seat, the nozzle seat is equipped with the spacing hole of fixed nozzle, the nozzle seat cover is established the one side that the second separation and reunion portion deviates from first separation and reunion portion, nozzle seat and second separation and reunion portion are connected through stopper and the spacing groove of pegging graft each other to make the nozzle seat can respond to the rotation of second separation and reunion portion, stopper and the spacing groove of pegging graft each other set up to have axial slip's space, so that the axial slip of axis of rotation can be followed to second separation and reunion portion.
2. The nozzle replacement apparatus of claim 1, further comprising an elastic member sleeved on the rotating shaft, the elastic member being disposed between the nozzle holder and the second clutch portion.
3. The nozzle replacement device of claim 1 or 2, wherein the clutch teeth comprise: The first steps are arranged on the first clutch part and distributed along the circumferential direction of the first clutch part, and the first sides of the first steps along the circumferential direction of the first clutch part are inclined planes; The second step is arranged on the second clutch part, the second side of the second step along the circumferential direction of the second clutch part is an inclined plane, and the inclined plane of the first step and the inclined plane of the second step can be attached.
4. The nozzle replacement device according to claim 2, wherein a bearing is provided in the mounting hole, the rotating shaft is abutted against the inner side wall of the bearing, a first gear is provided at one end of the rotating shaft facing away from the nozzle holder, and the first gears of the adjacent two rotating shafts are engaged.
5. The nozzle replacement device according to claim 2, wherein a first through hole is provided between two adjacent mounting holes on the mounting base, bearings are provided in the mounting holes and the first through holes, the rotating shaft is abutted against the inner side wall of the bearing, a first gear is provided at one end of the rotating shaft facing away from the nozzle base, a second gear is abutted against the inner side wall of the bearing in the first through hole, and the second gear is meshed with two adjacent first gears.
6. The nozzle replacing apparatus according to claim 4 or 5, wherein the rotating shaft is connected to a driving means, and the rotating shaft rotates in the mounting hole under the action of the driving means; The driving device comprises a motor, a driving gear is arranged on a driving shaft of the motor, and the driving gear is meshed with any one of the first gears.
7. The nozzle replacing device according to claim 1 or 2, wherein an end of the rotation shaft near the nozzle holder extends radially along the rotation shaft to form a stopper block, wherein an outer diameter of the stopper block > an inner diameter of a side of the nozzle holder near the second clutch portion is larger than or equal to an outer diameter of the rotation shaft.
8. The nozzle replacement device according to claim 5, comprising a housing, wherein the mounting seat divides an inner cavity of the housing into a first cavity and a second cavity, the first gear and the second gear are positioned in the second cavity, and a top plate of the housing is provided with a second through hole for the nozzle seat to penetrate; the shell is hinged with a cover body, the cover body can cover the part of the nozzle seat penetrating out of the top plate, the cover body is connected with a flip device, and under the middle action of the flip device, the cover body can be automatically opened and closed.
9. The nozzle replacement apparatus of claim 8, wherein the flip-top device comprises: the cylinder is connected to the outer side of the shell; the transmission rod is hinged with the driving end of the air cylinder; The transmission gear is rotatably connected to the shell through a first transmission shaft, one end of the transmission rod, which is away from the air cylinder, is fixedly connected with the side face of the transmission gear, and the transmission rod brings the transmission gear to rotate around the first transmission shaft under the driving of the air cylinder; the second transmission shaft is rotatably connected with the shell, a third gear is arranged on the second transmission shaft, the third gear is meshed with the transmission gear, and the cover body is fixedly connected with the second transmission shaft.
10. The nozzle replacement apparatus of claim 8 or 9, wherein a cushion is provided on an outer side of a top plate of the housing, the cushion being located between the top plate and the cover when the cover is closed.

Description

Nozzle replacement device Technical Field The utility model relates to the technical field of laser cutting machines, in particular to a nozzle replacing device. Background As a novel heat cutting technology, laser cutting has the advantages of high cutting speed, high production efficiency, good quality of cut end surfaces, small heat affected zone, environmental protection and the like, and has become one of the main metal plate cutting modes and has been widely used. However, in the production process of processing plates of different thickness, materials and the like, different types of nozzles must be mounted on the laser cutting head to achieve normal operation. In the prior art, manual replacement and the like are often adopted, however, the cutting head of the laser cutting machine is generally positioned in a processing area, so that the replacement of the nozzle of the laser cutting machine by hand in the mechanical operation is dangerous, and the equipment must be closed when the nozzle is replaced, and the equipment is waiting for cooling, thereby seriously affecting the processing efficiency. Disclosure of Invention In order to overcome the defects in the prior art, the utility model provides a nozzle replacing device, which connects a first clutch part and a second clutch part through clutch teeth according to the clutch principle, and an elastic piece is arranged between the second clutch part and a nozzle seat, when the nozzle replacing device is used for installing a nozzle for a cutting head, a driving device drives a rotating shaft to drive the first clutch part to rotate, under the action of the elastic piece, the first clutch part is connected with the second clutch part through the clutch teeth, the nozzle seat and the second clutch part are connected through the limiting blocks and the limiting grooves which are mutually spliced, so that the nozzle in the nozzle seat responds to the rotation of the rotating shaft, along with the increase of torque between the nozzle and the cutting head, the second clutch part gradually slides towards one side far away from the first clutch part until friction force between the first clutch part and the second clutch part is smaller than resilience force of the elastic piece, the second clutch part is separated from the first clutch part, at the moment, the nozzle and the cutting head reach preset torque, and the nozzle installation is completed. In order to achieve the above purpose, the utility model adopts the technical scheme that the nozzle replacing device is used for replacing a nozzle for a laser cutting head and comprises the following components: the mounting seat is provided with at least one mounting hole; The rotating shaft is rotatably arranged in the mounting hole in a penetrating manner; the clutch device comprises a first clutch part and a second clutch part which are sleeved on the rotating shaft, the first clutch part is connected with the rotating shaft and can rotate along with the rotating shaft, adjacent ends of the first clutch part and the second clutch part are connected through clutch teeth, and the first clutch part drives the second clutch part to rotate through the clutch teeth; The nozzle seat, the nozzle seat is equipped with the spacing hole of fixed nozzle, the nozzle seat cover is established the one side that the second separation and reunion portion deviates from first separation and reunion portion, nozzle seat and second separation and reunion portion are connected through stopper and the spacing groove of pegging graft each other to make the nozzle seat can respond to the rotation of second separation and reunion portion, stopper and the spacing groove of pegging graft each other set up to have axial slip's space, so that the axial slip of axis of rotation can be followed to second separation and reunion portion. Further, the device also comprises an elastic piece, wherein the elastic piece is sleeved on the rotating shaft, and the elastic piece is arranged between the nozzle seat and the second clutch part. Through the technical scheme, the nozzle replacing device is characterized in that according to the clutch principle, the first clutch part and the second clutch part are provided with the first step and the second step which are provided with the mutually matched inclined planes, the elastic piece is arranged between the second clutch part and the nozzle seat, when the nozzle replacing device is used for installing the nozzle for the cutting head, the driving device drives the rotating shaft to drive the first clutch part to rotate, under the action of the elastic piece, the inclined planes of the first step and the second step are attached until the friction force between the first step and the second step is smaller than the resilience force of the elastic piece, the second clutch part is separated from the first clutch part, and at the moment, the nozzle and the cutting head reach preset torque, and the