CN112355495A

CN112355495A - Full-rack constant-light-path laser cutting table

Info

Publication number: CN112355495A
Application number: CN202011313963.9A
Authority: CN
Inventors: 陈建山
Original assignee: Jinan Baihong Laser Technology Co ltd
Current assignee: Jinan Baihong Laser Technology Co ltd
Priority date: 2020-11-20
Filing date: 2020-11-20
Publication date: 2021-02-12

Abstract

A full-rack constant light path laser cutting table belongs to the technical field of laser cutting, and is characterized in that a motor and a speed reducer are used for rotating a gear to drive a driving moving device to move, the driving moving device and a driven moving device are fixed through a synchronous belt auxiliary device, the synchronous belt moves for one end distance due to the arrangement of the synchronous belt, the driven moving device moves for half of the distance, and the driving moving device moves for the distance along the same direction, so that the path length of the whole laser beam is not changed; the rotation precision is more accurate by controlling the motor and the speed reducer; the meshing contact ratio of the helical gear and the helical rack is large, the transmission is stable, and the noise is low; and the third reflector and the fourth reflector are usually fixed on the common laser cutting machine, a synchronous belt auxiliary device is not arranged, the cutting position of the laser gun is controlled only by the active moving device, when the equipment is improved to be a constant light path, a sliding block is arranged below the driven moving device, and the synchronous belt auxiliary device is added, so that the old equipment can be conveniently replaced in an advanced mode.

Description

Full-rack constant-light-path laser cutting table

Technical Field

The invention relates to the technical field of laser cutting, in particular to a full-rack constant-light-path laser cutting table.

Background

The laser cutting machine focuses laser emitted from a laser into a laser beam with high power density through an optical path system, and the laser beam irradiates the surface of a workpiece to enable the workpiece to reach a melting point or a boiling point, so that cutting is completed.

The laser beams emitted by the laser cutting machine are not absolutely parallel, but have a certain divergence angle. The laser beam is transmitted in a long distance, the diameter of the laser beam is enlarged, focal spots are unstable, and the cutting quality is directly influenced. The method of controlling beam variation can be implemented by optical optics, which typically results in a beam variation of less than 3 mm, but is costly to use and maintain due to the relatively short lifetime and high price of the transmission optics.

The existing constant light path device is usually carried out by matching a lead screw with a belt wheel, more structural parts and positioning are arranged, the whole constant light path laser cutting device is required to be replaced when the existing laser cutting machine is replaced, and the replacement cost is high.

Disclosure of Invention

Aiming at the defects, the invention provides a full-rack constant optical path laser cutting table.

The invention is realized by the following technical scheme:

a full-rack constant optical path laser cutting table comprises a base, a guide rail, a driving moving device, a driven moving device and a synchronous belt auxiliary device, wherein the guide rail is provided with a first guide rail and a second guide rail which are fixed on the base,

the driving moving device comprises a first slide block, a driving plate, a motor, a speed reducer, a fifth reflector, a gear and a rack, wherein the first slide block is correspondingly arranged on the first guide rail and the second guide rail respectively, the driving plate is arranged on the first slide block, the fifth reflector is arranged on the driving plate, a reflecting gun is correspondingly arranged below the fifth reflector, the motor plate is arranged on the driving plate, the motor and the speed reducer are arranged on the motor plate, an output shaft of the motor and the speed reducer penetrates through the motor plate, the gear is arranged on the output shaft of the motor and the speed reducer, the gear is positioned between the driving plate and the base, the gear is matched with the rack, the rack is fixed on the base, and the rack and the gear are positioned between the first guide rail and the second guide rail,

the driven moving device comprises a driven plate, a third reflector, a fourth reflector and a second sliding block, the second sliding block is correspondingly arranged on the first guide rail and the second guide rail, the driven plate is arranged on the second sliding block, the third reflector and the fourth reflector are symmetrically arranged on the driven plate,

the synchronous belt auxiliary device comprises a first bearing seat, a second bearing seat, a third sliding block, a synchronous wheel, a synchronous belt, a supporting rod and a supporting plate, wherein the first bearing seat is arranged on a driven plate, the synchronous wheel is arranged on the first bearing seat, the third sliding block is arranged on a second guide rail, the second bearing seat is arranged on the third sliding block, the synchronous wheel is arranged on the second bearing seat, the synchronous wheel is connected through the synchronous belt, the lower side of the synchronous belt is fixed on the driving plate through a pressing strip, the upper side of the synchronous belt is fixed on the supporting plate, and the supporting plate is fixed.

Preferably, the reflector comprises a reflector and a reflecting frame, the reflecting frame is a triangular prism stretched by an isosceles right triangle, the reflecting frame is provided with an entrance hole and a reflecting hole, and the largest cylindrical surface is provided with the reflector.

Preferably, the first and second bearing seats comprise a bearing seat vertical plate a, a bearing seat vertical plate b and a bearing seat vertical plate c, the bearing seat vertical plate a of the first bearing seat is fixed on the driven plate, the bearing seat vertical plate b and the bearing seat vertical plate c are symmetrically fixed on the bearing seat vertical plate a, the bearing seat vertical plate a is provided with a through hole a and a jackscrew hole a, the supporting rod is fixed on the through hole a by screwing a jackscrew in the jackscrew hole a, the bearing seat vertical plates b and c are provided with a through hole b and a through hole c, bearings are arranged in the through hole b and the through hole c, a wheel shaft is arranged in the bearing hole, a synchronizing wheel is arranged on the wheel shaft, the jackscrew hole b is arranged on the synchronizing wheel, and the synchronizing wheel is fixed on the rotating shaft by screwing a.

Preferably, the synchronous belt and the supporting rod are positioned right above the second guide rail.

Preferably, the gear is a helical gear, and the rack is a helical rack.

Preferably, the third reflector, the fourth reflector and the fifth reflector are at the same horizontal height.

Preferably, the laser gun moves along the X-axis direction of the laser cutting table, the base is fixed on a movable beam, and the beam moves along the Y-axis direction.

The invention has the advantages that: the driving moving device is driven to move (a fifth reflector and a laser gun are arranged on the driving moving device) by utilizing a motor and a speed reducer rotating gear, the driving moving device and a driven moving device (a third reflector and a fourth reflector are arranged on the driven moving device) are fixed through a synchronous belt auxiliary device, the synchronous belt moves for one end distance due to the arrangement of the synchronous belt, the driven moving device moves for half of the distance, the driving moving device moves for the distance along the same direction, and the path length of the whole laser beam is not changed; the rotation precision is more accurate by controlling the motor and the speed reducer; the meshing contact ratio of the helical gear and the helical rack is large, the transmission is stable, and the noise is low; and the third reflector and the fourth reflector on the usually fixed driven mobile device of the common laser cutting machine are not provided with synchronous belt auxiliary devices, the cutting position of the laser gun is controlled only by the driving mobile device, and when the equipment is improved to be a constant light path, a sliding block can be arranged below the driven mobile device, and the synchronous belt auxiliary devices are added, so that the old equipment can be conveniently replaced in an advanced manner.

Drawings

FIG. 1 is a schematic overall structure of the present application;

FIG. 2 is a schematic diagram of an active mobile device;

FIG. 3 is a schematic side cross-sectional view of an active displacement device;

FIG. 4 is a schematic diagram of the structure of the driven moving device;

FIG. 5 is a schematic diagram of a synchronous belt auxiliary device;

FIG. 6 is an enlarged view of a portion of FIG. 5 at A;

FIG. 7 is a schematic structural view of a bearing seat;

fig. 8 is a schematic view of a reflector structure.

1. A base, 2, a guide rail, 201, a first guide rail, 202, a second guide rail, 3, a driving moving device, 301, a first sliding block, 302, a driving plate, 303, a motor plate, 304, a motor and a speed reducer, 305, a fifth emitter, 306, a laser gun, 307, a gear, 308, a rack, 4, a driven moving device, 401, a driven plate, 402, a third reflector, 403, a fourth reflector, 404, a second sliding block, 5, a synchronous belt auxiliary device, 501, a first bearing seat, 502, a second bearing seat, 503, a third sliding block, 504, a synchronous wheel, 50401, a jackscrew hole b, 505, a supporting rod, 506, a pressing bar, 507, a support plate, 508, a synchronous belt, 511, a bearing seat riser a, 51101, a through hole a, 51102, a jackscrew hole a, 512 bearing seat riser b, 51201, a through hole b, 513, a bearing seat riser c, 51301, a through hole c, 514, a bearing, 515, a rotating shaft, 6 reflector, 601. mirror, 602, reflector frame, 603, entrance aperture, 604, reflection aperture.

Detailed Description

It should be noted that like reference numerals and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are conventionally placed in when used, and are only used for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed," "provided," "mounted," "connected," and "connected" are to be construed broadly and may include, for example, a fixed connection, a detachable connection, or an integral connection, either a mechanical connection, an electrical connection, either a direct connection, an indirect connection via an intermediate medium, or a communication between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween, and that "above", "over" and "on" a second feature means that the first feature is directly above and obliquely above the second feature, or that only the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

As shown in fig. 1, a full-rack constant optical path laser cutting table comprises a base 1 and a guide rail 2, wherein the guide rail comprises a first guide rail 201 and a second guide rail 202, the first guide rail 201 and the second guide rail 202 are fixed on the base 1, the full-rack constant optical path laser cutting table further comprises a driving moving device 3, a driven moving device 4 and a synchronous belt auxiliary device 5, the driving moving device 3 is connected with the driven moving device 4 through the synchronous belt auxiliary device 5,

as shown in fig. 2 and 3, the active moving device 3 includes a first slider 301, an active plate 302, a motor plate 303, a motor and speed reducer 304, a fifth reflector 305, a gear 307, and a rack 308, the first slider 301 is correspondingly disposed on the first guide rail 201 and the second guide rail 202, the active plate 302 is disposed on the first slider 301, the fifth reflector 305 is disposed on the active plate 302, the laser gun 306 is correspondingly disposed under the fifth reflector 305, the motor plate 303 is disposed on the active plate 302, the motor and speed reducer 304 is disposed on the motor plate 303, an output shaft of the motor and speed reducer 304 passes through the motor plate 302, the gear is mounted on an output shaft of the motor and speed reducer 304, the gear is located between the active plate and the base, the gear 307 is matched with the rack 308, the rack 308 is fixed on the base 1, and the rack 308 and the gear 307 are located between the first guide rail 201 and the second guide rail 202,

as shown in fig. 4, the driven moving device 4 includes a driven plate 401, a third reflector 402, a fourth reflector 403, and a second slider 404, the second slider 404 is correspondingly disposed on the first guide rail 201 and the second guide rail 202, the driven plate 401 is disposed on the second slider 404, the third reflector 402 and the fourth reflector 403 are symmetrically disposed on the driven plate 401,

as shown in fig. 5 and 6, the synchronous belt auxiliary device 5 includes a first bearing seat 501, a second bearing seat 502, a third sliding block 503, a synchronous wheel 504, a synchronous belt 508, a support rod 505, and a support plate 507, where the first bearing seat 501 is disposed on the driven plate 401, the synchronous wheel 504 is disposed on the first bearing seat 501, the third sliding block 503 is disposed on the second guide rail 202, the second bearing seat 502 is disposed on the third sliding block 503, the synchronous wheel 504 is disposed on the second bearing seat 502, the synchronous wheel 504 is connected through the synchronous belt 505, a lower side of the synchronous belt 505 is fixed on the driving plate 302 through a pressing strip 506, an upper side of the synchronous belt 505 is fixed on the support plate 507, and the support plate 507 is fixed.

Further, as shown in fig. 8, in addition to the third, fourth, and fifth reflectors, a first reflector and a second reflector are further provided, the reflectors include a reflector 601 and a reflector frame 602, the reflector frame 602 is a triangular prism stretched in an isosceles right triangle, the reflector frame 602 is provided with an entrance hole 603 and a reflection hole 604, and the largest cylindrical surface is provided with the reflector 601.

Further, as shown in fig. 7, the first and second bearing

seats

501 and 502 include a bearing seat vertical plate a511, a bearing seat vertical plate b512, and a bearing seat vertical plate c513, the bearing seat vertical plate a511 of the first bearing seat 501 is fixed on the driven plate 401, the bearing seat vertical plate b512 and the bearing seat vertical plate c513 are symmetrically fixed on the bearing seat vertical plate a511, the bearing seat vertical plate a511 is provided with a through hole a51101 and a jackscrew hole a51102, a jackscrew is screwed into the jackscrew hole a51102 to fix the support rod 505 on the through hole a51101, the bearing seat vertical plates b, c512, and 513 are provided with a through hole b51201 and a through hole c51301, a bearing 514 is provided in the through hole b51201 and the through hole c51301, an axle 515 is provided in the bearing hole, a synchronizing wheel 504 is provided on the axle 515, a jackscrew hole b50401 is provided on the synchronizing wheel, and the synchronizing wheel 504 is fixed on the rotating shaft 515 by screwing the.

The present application as shown in fig. 1 to 8:

further, the timing belt 508 and the support rod 505 are located right above the second guide rail 201.

Further, the gear 307 is a helical gear, and the rack 308 is a helical rack.

Further, the third reflector 402, the fourth reflector 403, and the fifth reflector 305 are at the same level.

Further, the laser gun 306 moves along the X-axis direction of the laser cutting table, the base 1 is fixed on a movable beam, and the beam moves along the Y-axis direction.

The specific route of laser emission: the laser emitter emits laser beams to enter an incident hole of the first reflector, the laser beams are reflected by the first reflector and then emitted from the reflecting hole, the emitted laser beams enter an incident hole of the second reflector and then are emitted from the reflecting hole after being reflected by the second reflector, and the laser beams sequentially pass through the third reflector 402, the fourth reflector 403 and the fifth reflector 305 and finally are emitted from the laser gun 306.

The principle of the constant light path in the application is as follows:

setting the distance from the laser emitter to the first reflector of the emitted laser beam as X;

setting the distance of the emitted laser beam from the first reflector to the second reflector as Y;

let the distance of the emitted laser beam from the second reflector to the third reflector 402 be M;

let Z be the distance of the emitted laser beam from the third reflector 402 to the fourth reflector 403;

let the distance of the emitted laser beam from the fourth reflector 403 to the fifth reflector 305 be N;

setting the total distance of the emitted laser beams as L;

the distance of X, Y, Z, M is constant and the distance is N in the prior art, so the total distance L of the laser beam in the prior art is changed, whereas the distance of X, Y, Z is constant and the distance is M, N in the present application, and the specific principle is as follows:

for example, when the motor and reducer 304 controls the bevel gear to move in the positive X direction, the moving distance is 20cm, the driving moving device 4 is fixed to the timing belt 508, the moving distance of the position of the timing belt pressing bar 506 is also 20cm, the support 507 is fixed to the upper side of the timing belt 508, the timing belt 508 pulls the driven moving device 4 to move in the positive X direction, the timing belt 508 moves twice the moving distance of the timing belt 508 as a whole due to the setting of the timing belt 508, the driven moving device 4 moves 10cm in the positive X direction, the distance of M can be calculated to be reduced by 10cm on the original basis, the distance of N is the distance from the fourth reflector 402 to the fifth reflector 403, the driven moving device 4 moves 10cm in the positive X direction due to the fourth reflector 402 being provided on the driven moving device 4, the fifth reflector 5 is provided on the driving moving device 3 to move 20cm in the positive X direction, it can be concluded that the distance of N increases by 20cm-10cm to 10cm, so the total distance L does not change.

In the application, a motor and a speed reducer 304 are used for rotating a gear to drive a driving mobile device 3 to move (a fifth reflector 305 and a laser gun 306 are arranged on the driving mobile device 3), the driving mobile device 3 and a driven mobile device 4 (a third reflector 402 and a fourth reflector 403 are arranged on the driven mobile device 4) are fixed through a synchronous belt auxiliary device 5, the synchronous belt 508 moves for one end distance due to the arrangement of the synchronous belt 508, the driven mobile device 4 moves for half of the distance, and the driving mobile device 3 moves for the distance along the same direction, so that the path length of the whole laser beam is not changed; the rotation precision is more accurate by controlling the motor and the speed reducer 304; the meshing contact ratio of the helical gear and the helical rack is large, the transmission is stable, and the noise is low; and the third and

fourth reflectors

402, 403 on the usually fixed driven mobile device 4 of the common laser cutting machine are not provided with the synchronous belt auxiliary device 5, and the cutting position of the laser gun 306 is controlled only by the driving mobile device 3, and when the equipment is improved to be a constant light path, a sliding block can be arranged under the driven mobile device 4, and the synchronous belt auxiliary device 5 is added, so that the old equipment can be conveniently replaced in an advanced manner.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical scope of the present invention and the equivalent alternatives or modifications according to the technical solution and the inventive concept of the present invention within the technical scope of the present invention.

Claims

1. A full-rack constant optical path laser cutting table comprises a base and a guide rail, wherein the guide rail is provided with a first guide rail and a second guide rail which are fixed on the base, and the full-rack constant optical path laser cutting table is characterized by further comprising a driving moving device, a driven moving device and a synchronous belt auxiliary device, wherein the driving moving device is connected with the driven moving device through the synchronous belt auxiliary device,

2. The laser cutting table of claim 1, wherein the first reflector and the second reflector are provided in addition to the third reflector, the fourth reflector and the fifth reflector, the reflectors comprise reflectors and reflector frames, the reflector frames are triangular prisms formed by stretching isosceles right triangles, the reflector frames are provided with the penetrating holes and the reflecting holes, and the reflectors are arranged on the largest cylindrical surfaces.

3. The laser cutting table with the full rack and the constant light path as claimed in claim 1, wherein the first and second bearing bases comprise a bearing base vertical plate a, a bearing base vertical plate b and a bearing base vertical plate c, the bearing base vertical plate a of the first bearing base is fixed on the driven plate, the bearing base vertical plate b and the bearing base vertical plate c are symmetrically fixed on the bearing base vertical plate a, the bearing base vertical plate a is provided with a through hole a and a jackscrew hole a, a supporting rod is fixed on the through hole a by screwing a jackscrew on the jackscrew hole a, the bearing base vertical plates b and c are provided with a through hole b and a through hole c, bearings are arranged in the through hole b and the through hole c, a wheel shaft is arranged in the bearing hole, a synchronizing wheel is arranged on the wheel shaft, the jackscrew hole b is arranged on the synchronizing wheel, and the synchronizing wheel is fixed on the rotating shaft by screwing.

4. The full-rack constant optical path laser cutting table as claimed in claim 1, wherein the timing belt and the support bar are located directly above the second guide rail.

5. The full-rack constant optical path laser cutting table as claimed in claim 1, wherein the gear is a helical gear and the rack is a helical rack.

6. The full-rack constant optical path laser cutting table of claim 1, wherein the third reflector, the fourth reflector, and the fifth reflector are at the same level.

7. The all-rack constant optical path laser cutting table as claimed in any one of claims 1 to 6, wherein the laser gun moves along the X-axis direction of the laser cutting table, the base is fixed on a movable beam, and the beam moves along the Y-axis direction.