A full-rack constant light path laser cutting table

Abstract

A full-rack constant light path laser cutting table belongs to the field of laser cutting technology. It uses a motor and a reducer to rotate gears to drive an active moving device to move, and the active moving device is fixed to a driven moving device through a synchronous belt auxiliary device. Due to the setting of the synchronous belt, the synchronous belt moves one end distance, the driven moving device moves half of the distance, and the active moving device moves the distance in the same direction, so that the path length of the overall laser beam does not change; and the rotation accuracy is made more precise by controlling the motor and the reducer; the meshing overlap of the helical gear and the helical rack is large, the transmission is stable, and the noise is small; and the common laser cutting machine usually fixes the third and fourth reflectors, and does not have a synchronous belt auxiliary device. The cutting position of the laser gun is controlled only by the active moving device. When the equipment is improved to a constant light path, only a slider is set under the driven moving device, and a synchronous belt auxiliary device is added, so that the old equipment is convenient for advanced replacement.

Description

Technical Field

[0001] The invention relates to the technical field of laser cutting, in particular to a full-rack constant light path laser cutting table. Background Art

[0002] The laser cutting machine focuses the laser emitted from the laser into a high-power density laser beam through the optical path system. The laser beam is irradiated onto the surface of the workpiece, causing the workpiece to reach the melting point or boiling point, thereby completing the cutting.

[0003] The laser beam emitted by the laser cutting machine is not absolutely parallel, but has a certain divergence angle. The diameter of the laser beam expands after long-distance transmission, causing the instability of the focal spot, which directly affects the cutting quality. The method of controlling the change of the beam can be achieved through optical lenses. This method can usually obtain a beam change of less than 3 mm, but because the transmission lens has a relatively short life and a high price, the maintenance cost is high.

[0004] The existing constant light path device often uses a screw and a pulley. This structure has many parts and positioning settings. When replacing the existing laser cutting machine, the entire set of constant light path laser cutting device needs to be replaced, and the replacement cost is high. Summary of the invention

[0005] In view of the above-mentioned deficiencies, the present invention provides a full-rack constant light path laser cutting table.

[0006] The present invention is achieved through the following technical solutions:

[0007] A full rack constant light path laser cutting table comprises a base and a guide rail, wherein the guide rail comprises a first guide rail and a second guide rail, wherein the first guide rail and the second guide rail are fixed on the base, and further comprises an active moving device, a driven moving device and a synchronous belt auxiliary device, wherein the active moving device is connected to the driven moving device via the synchronous belt auxiliary device.

[0008] The active moving device includes a first slider, an active plate, a motor plate, a motor and a reducer, a fifth reflector, a gear and a rack, the first guide rail and the second guide rail are respectively provided with a first slider, an active plate is provided on the first slider, a fifth reflector is provided on the active plate, a reflection gun is provided under the fifth reflector, a motor plate is provided on the active plate, a motor and a reducer are provided on the motor plate, the output shafts of the motor and the reducer pass through the motor plate, a gear is installed on the output shaft of the motor and the reducer, the gear is located between the active plate and the base, the gear cooperates with the rack, the rack is fixed on the base, the rack and the gear are located between the first guide rail and the second guide rail,

[0009] The driven moving device comprises a driven plate, a third reflector, a fourth reflector and a second slider, wherein the second slider is correspondingly arranged on the first guide rail and the second guide rail, the second slider is provided with a driven plate, and the driven plate is symmetrically provided with a third reflector and a fourth reflector,

[0010] The synchronous belt auxiliary device includes a first bearing seat, a second bearing seat, a third slider, a synchronous wheel, a synchronous belt, a support rod and a support plate. The first bearing seat is arranged on the driven plate, and the first bearing seat is provided with a synchronous wheel. The third slider is arranged on the second guide rail, and the third slider is provided with a second bearing seat. The second bearing seat is provided with a synchronous wheel. The synchronous wheels are connected through a synchronous belt. The lower side of the synchronous belt is fixed to the active plate through a pressure strip, and the upper side of the synchronous belt is fixed to the support plate. The support plate is fixed.

[0011] Preferably, in addition to the third, fourth and fifth reflectors, there are also first and second reflectors, the reflectors include a reflector and a reflector frame, the reflector frame is a triangular prism stretched from an isosceles right triangle, the reflector frame is provided with an incident hole and a reflective hole, and a reflector is provided on the largest cylindrical surface.

[0012] Preferably, the first and second bearing seats include a bearing seat upright plate a, a bearing seat upright plate b, and a bearing seat upright plate c. The bearing seat upright plate a of the first bearing seat is fixed on the driven plate, and the bearing seat upright plate b and the bearing seat upright plate c are symmetrically fixed on the bearing seat upright plate a. The bearing seat upright plate a is provided with a through hole a and a top screw hole a, and the support rod is fixed to the through hole a by screwing a top screw into the top screw hole a. The bearing seat upright plates b and c are provided with a through hole b and a through hole c, and bearings are provided in the through hole b and the through hole c, and a wheel axle is provided in the bearing hole, a synchronous wheel is provided on the wheel axle, and a top screw hole b is provided on the synchronous wheel, and the synchronous wheel is fixed to the rotating shaft by screwing a top screw into the top screw hole b.

[0013] Preferably, the synchronous belt and the support rod are located directly above the second guide rail.

[0014] Preferably, the gear is a helical gear, and the rack is a helical rack.

[0015] Preferably, the third reflector, the fourth reflector and the fifth reflector are at the same horizontal height.

[0016] Preferably, the laser gun moves along the X-axis direction of the laser cutting table, and the base is fixed on a movable beam, and the beam moves along the Y-axis direction.

[0017] The benefits of this invention are as follows: this application utilizes a motor and a reducer to rotate gears to drive the active moving device to move (the active moving device is provided with a fifth reflector and a laser gun), and the active moving device is fixed to the driven moving device (the driven moving device is provided with a third and fourth reflectors) through a synchronous belt auxiliary device. Due to the setting of the synchronous belt, the synchronous belt moves one end distance, the driven moving device moves half of the distance, and the active moving device moves the distance in the same direction, so that the path length of the overall laser beam does not change; and the rotation accuracy is made more precise by controlling the motor and the reducer; the meshing overlap 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 on the driven moving device of the common laser cutting machine are usually fixed, and no synchronous belt auxiliary device is provided, and the cutting position of the laser gun is controlled only by the active moving device. When the equipment is improved to a constant light path, only a slider needs to be provided under the driven moving device, and a synchronous belt auxiliary device can be added, so as to facilitate the advanced replacement of old equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of this application;

[0019] Figure 2 is a schematic diagram of the structure of the active moving device;

[0020] Figure 3 is a side cross-sectional schematic diagram of an active moving device;

[0021] Figure 4 is a schematic structural diagram of a driven moving device;

[0022] Figure 5 It is a structural schematic diagram of a synchronous belt auxiliary device;

[0023] Figure 6 for Figure 5 A partial enlarged view of the middle A;

[0024] Figure 7 is a structural schematic diagram of the bearing seat;

[0025] Figure 8 Schematic diagram of the reflector structure.

[0026] 1. Base, 2. Guide rail, 201. First guide rail, 202. Second guide rail, 3. Active moving device, 301. First slider, 302. Active plate, 303. Motor plate, 304. Motor and reducer, 305. Fifth transmitter, 306. Laser gun, 307. Gear, 308. Rack, 4. Driven moving device, 401. Driven plate, 402. Third reflector, 403. Fourth reflector, 404. Second slider, 5. Synchronous belt auxiliary device, 501, first bearing seat, 502, second bearing seat, 503, third slider, 504, synchronous wheel, 50401, top screw hole b, 505, support rod, 506, pressure strip, 507, support plate, 508, synchronous belt, 511, bearing seat vertical plate a, 51101, through hole a, 51102, top screw hole a, 512 bearing seat vertical plate b, 51201, through hole b, 513, bearing seat vertical plate c, 51301, through hole c, 514, bearing, 515, rotating shaft, 6 reflector, 601, reflector, 602, reflection frame, 603, incident hole, 604, reflection hole. DETAILED DESCRIPTION

[0027] It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not require further definition and explanation in subsequent drawings.

[0028] In the description of the present invention, it should be noted that the terms "center", "up", "down", "vertical", "horizontal", "inside", "outside" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are directions or positional relationships in which the product of the invention is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0029] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "provided with", "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] In the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or the first and second features being in contact not directly but through another feature between them. Moreover, the first feature being "above", "above" and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature includes the first feature being directly below and obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0031] like Figure 1 As shown, a full-rack constant light path laser cutting table includes a base 1 and a guide rail 2, wherein the guide rail includes a first guide rail 201 and a second guide rail 202, wherein the first guide rail 201 and the second guide rail 202 are fixed on the base 1, and further includes an active moving device 3, a driven moving device 4 and a synchronous belt auxiliary device 5, wherein the active moving device 3 is connected to the driven moving device 4 via the synchronous belt auxiliary device 5,

[0032] like Figure 2 and Figure 3 As shown, the active moving device 3 includes a first slider 301, an active plate 302, a motor plate 303, a motor and a reducer 304, a fifth reflector 305, a gear 307 and a rack 308. The first guide rail 201 and the second guide rail 202 are respectively provided with a first slider 301, an active plate 302 is provided on the first slider 301, a fifth reflector 305 is provided on the active plate 302, a laser gun 306 is provided under the fifth reflector 305, a motor plate 303 is provided on the active plate 302, a motor and a reducer 304 is provided on the motor plate 303, an output shaft of the motor and the reducer 304 passes through the motor plate 302, a gear is installed on the output shaft of the motor and the reducer 304, the gear is located between the active plate and the base, the gear 307 cooperates with the rack 308, the rack 308 is fixed on the base 1, the rack 308 and the gear 307 are located between the first guide rail 201 and the second guide rail 202,

[0033] like Figure 4 As shown, the driven moving device 4 includes a driven plate 401, a third reflector 402, a fourth reflector 403 and a second slider, the second slider 404 is correspondingly arranged on the first guide rail 201 and the second guide rail 202, the second slider 404 is provided with a driven plate 401, and the driven plate 401 is symmetrically provided with a third reflector 402 and a fourth reflector 403,

[0034] like Figure 5 and Figure 6As shown, the synchronous belt auxiliary device 5 includes a first bearing seat 501, a second bearing seat 502, a third slider 503, a synchronous wheel 504, a synchronous belt 508, a support rod 505 and a support plate 507. The first bearing seat 501 is arranged on the driven plate 401, and the first bearing seat 501 is provided with a synchronous wheel 504. The third slider 503 is arranged on the second guide rail 202. The third slider 503 is provided with a second bearing seat 502, and the second bearing seat 502 is provided with a synchronous wheel 504. The synchronous wheel 504 is connected through a synchronous belt 505. The lower side of the synchronous belt 505 is fixed to the active plate 302 through a pressure strip 506. The upper side of the synchronous belt 505 is fixed to the support plate 507. The support plate 507 is fixed.

[0035] Further, such as Figure 8 As shown, in addition to the third, fourth and fifth reflectors, the first and second reflectors are also provided. The reflectors include a reflector 601 and a reflector frame 602. The reflector frame 602 is a triangular prism stretched from an isosceles right triangle. The reflector frame 602 is provided with an incident hole 603 and a reflective hole 604, and the reflector 601 is provided on the largest cylindrical surface.

[0036] Further, such as Figure 7 As shown, the first and second bearing seats 501, 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, and 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 top screw hole a51102. The support rod 505 is fixed to the through hole a51101 by screwing a top screw into the top screw hole a51102. The bearing seat vertical plates b, c512, 513 are provided with a through hole b51201 and a through hole c51301. The through hole b51201 A bearing 514 is provided in the through hole c51301, a wheel axle 515 is provided in the bearing hole, a synchronous wheel 504 is provided on the wheel axle 515, a top screw hole b50401 is provided on the synchronous wheel 504, and the synchronous wheel 504 is fixed on the rotating shaft 515 by screwing a top screw into the top screw hole b50401.

[0037] like Figures 1 to 8 This application shown:

[0038] Furthermore, the synchronous belt 508 and the support rod 505 are located directly above the second guide rail 201 .

[0039] Furthermore, the gear 307 is a helical gear, and the rack 308 is a helical rack.

[0040] Furthermore, the third reflector 402, the fourth reflector 403, and the fifth reflector 305 are at the same horizontal height.

[0041] Furthermore, the laser gun 306 moves along the X-axis direction of the laser cutting table, and the base 1 is fixed on a movable beam, and the beam moves along the Y-axis direction.

[0042] Specific route of laser emission: the laser emitter emits a laser beam that enters the incident hole of the first reflector, which is reflected by the first reflector and then emitted from the reflective hole. The emitted laser beam enters the incident hole of the second reflector and then is reflected by the second reflector and then emitted from the reflective hole. Similarly, the laser beam passes through the third, fourth, and fifth reflectors 402, 403, and 305 in sequence and is finally emitted from the laser gun 306.

[0043] The principle of constant light path in this application is as follows:

[0044] Assume that the distance of the emitted laser beam from the laser emitter to the first reflector is X;

[0045] Assume that the distance of the emitted laser beam from the first reflector to the second reflector is Y;

[0046] Assume that the distance of the emitted laser beam from the second reflector to the third reflector 402 is M;

[0047] Assume that the distance of the emitted laser beam from the third reflector 402 to the fourth reflector 403 is Z;

[0048] Assume that the distance of the emitted laser beam from the fourth reflector 403 to the fifth reflector 305 is N;

[0049] Let the total distance of the emitted laser beam be L;

[0050] L=X+Y+M+Z+N. In the prior art, the distances of X, Y, Z, and M remain unchanged, and the distance that changes is N. Therefore, the total distance L of the laser beam in the prior art will change. In the present application, the distances of X, Y, and Z remain unchanged, and the distances that change are M and N. M+N (before moving)=M+N (after moving). The specific principle is as follows:

[0051] For example, when the motor and the reducer 304 control the helical gear to move in the positive direction of X, the moving distance is 20 cm. Because the active moving device 4 is fixed to the synchronous belt 508, the moving distance of the synchronous belt pressure strip 506 is also 20 cm. Because the support plate 507 is fixed to the upper side of the synchronous belt 508, the synchronous belt 508 will pull the driven moving device 4 to move in the positive direction of X. Due to the setting of the synchronous belt 508, the distance moved by one side of the synchronous belt 508 is twice the overall movement of the synchronous belt 508. The driven moving device 4 moves 10 cm in the positive direction of X. It can be inferred that the distance M is reduced by 10 cm on the original basis, and the distance N is the distance of the laser beam from the fourth reflector 402 to the fifth reflector 403. Since the fourth reflector 402 is set on the driven moving device 4, the driven moving device 4 moves 10 cm in the positive direction of X. The fifth reflector 5 is set on the active moving device 3 and actively moves along the X. The positive direction moves 20cm, so it can be concluded that the distance N increases by 20cm-10cm=10cm, so the total distance L remains unchanged.

[0052] The present application utilizes a motor and a reducer 304 to rotate the gears to drive the active moving device 3 to move (the active moving device 3 is provided with a fifth reflector 305 and a laser gun 306), and the active moving device 3 is fixed to the driven moving device 4 (the driven moving device 4 is provided with a third and fourth reflectors 402, 403) through a synchronous belt auxiliary device 5. Due to the setting of the synchronous belt 508, the synchronous belt 508 moves one end distance, the driven moving device 4 moves half of the distance, and the active moving device 3 moves the distance in the same direction, so that the path length of the overall laser beam is The degree does not change; and the rotation accuracy is made more precise by controlling the motor and the reducer 304; the meshing overlap 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 and 403 on the usually fixed driven moving device 4 of the common laser cutting machine are not provided with a synchronous belt auxiliary device 5, and the cutting position of the laser gun 306 is only controlled by the active moving device 3. When the equipment is improved to a constant light path, only a slider is provided under the driven moving device 4, and a synchronous belt auxiliary device 5 is added, so as to facilitate the advanced replacement of old equipment.

[0053] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A full rack constant light path laser cutting table, comprising a base and a guide rail, wherein the guide rail comprises a first guide rail and a second guide rail, wherein the first guide rail and the second guide rail are fixed on the base, characterized in that: It also includes an active moving device, a driven moving device and a synchronous belt auxiliary device, wherein the active moving device is connected to the driven moving device via the synchronous belt auxiliary device. The active moving device includes a first slider, an active plate, a motor plate, a motor and a reducer, a fifth reflector, a gear and a rack, the first guide rail and the second guide rail are respectively provided with a first slider, an active plate is provided on the first slider, a fifth reflector is provided on the active plate, a reflection gun is provided under the fifth reflector, a motor plate is provided on the active plate, a motor and a reducer are provided on the motor plate, the output shafts of the motor and the reducer pass through the motor plate, a gear is installed on the output shaft of the motor and the reducer, the gear is located between the active plate and the base, the gear cooperates with the rack, the rack is fixed on the base, the rack and the gear are located 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 slider, wherein the second slider is correspondingly arranged on the first guide rail and the second guide rail, the second slider is provided with a driven plate, and the driven plate is symmetrically provided with a third reflector and a fourth reflector, The synchronous belt auxiliary device includes a first bearing seat, a second bearing seat, a third slider, a synchronous wheel, a synchronous belt, a support rod and a support plate. The first bearing seat is arranged on the driven plate, and the first bearing seat is provided with a synchronous wheel. The third slider is arranged on the second guide rail, and the third slider is provided with a second bearing seat. The second bearing seat is provided with a synchronous wheel. The synchronous wheels are connected through a synchronous belt. The lower side of the synchronous belt is fixed to the active plate through a pressure strip, and the upper side of the synchronous belt is fixed to the support plate, and the support plate is fixed; the synchronous belt and the support rod are located directly above the second guide rail; the third reflector, the fourth reflector, and the fifth reflector are at the same horizontal height.

2. A full-rack constant light path laser cutting table as claimed in claim 1, characterized in that: In addition to the third, fourth and fifth reflectors, there are also first and second reflectors, which include a reflector and a reflector frame. The reflector frame is a triangular prism formed by stretching an isosceles right triangle. The reflector frame is provided with an incident hole and a reflective hole, and a reflector is provided on the largest cylindrical surface.

3. The full-rack constant light path laser cutting table according to claim 1, characterized in that: The first and second bearing seats include 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, and 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 top screw hole a. The support rod is fixed to the through hole a by screwing a top screw into the top screw hole a. The bearing seat vertical plates b and c are provided with a through hole b and a through hole c. Bearings are provided in the through hole b and the through hole c. A wheel axle is provided in the bearing hole. A synchronous wheel is provided on the wheel axle. The synchronous wheel is provided with a top screw hole b. The synchronous wheel is fixed to the rotating shaft by screwing a top screw into the top screw hole b.

4. The full-rack constant light path laser cutting table according to claim 1, characterized in that: The gear is a helical gear, and the rack is a helical rack.

Images