Reflective target device and laser cutting machine

Abstract

The application discloses a reflecting target device, which comprises a base, a driving motor, a moving frame and a reflecting lens installed on the moving frame, the moving frame is in sliding connection with the base, and the driving motor is used for driving the moving frame to move. The reflecting target device is arranged outside a laser when applied, so that the internal devices of the laser are not damaged to cause faults, the service life is prolonged, and the maintenance cost is reduced. In addition, the reflecting target is driven by the driving motor, compared with the existing driving structure adopting a cylinder, the moving distance of the reflecting target is adjustable, the structure is light, the occupied position is small, and the installation is simple. In addition, the application also discloses a laser cutting machine.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of laser reflection equipment, in particular to a reflection target device and a laser cutting machine. BACKGROUND

[0002] In the field of glass processing, laser cutting process is often used in the deep processing of glass. Generally, a laser emits a laser beam to the surface of a glass workpiece for cutting, and after the cutting is completed, the reflection target reflects the laser beam emitted by the laser to other absorption surfaces for heat dissipation, so as to switch the laser beam light path.

[0003] At present, the reflection target for reflecting the laser beam mainly includes two types. One is an internal type, and the reflection target is arranged inside the cavity of the laser. When the laser emits a laser beam, the energy is concentrated inside the cavity, which is easy to cause unstable temperature inside the cavity. When the reflection light path deviates, the laser beam will irradiate on the internal components of the cavity, causing damage and failure, low service life of the laser, and high maintenance cost. The other is an external type, and the reflection target is arranged outside the cavity of the laser. Generally, a pneumatic cylinder is used for driving. The stroke is fixed and cannot be adjusted. The structure is bulky, occupies a large position, and is difficult to install. Moreover, it is a pneumatic control, and the response speed is slow. The stability is poor due to the influence of external air pressure.

[0004] Therefore, it is necessary to propose a new reflection target device to solve the above problems. SUMMARY

[0005] The main purpose of the present application is to propose a reflection target device to solve the problems in the background art.

[0006] To achieve the above purpose, the present application proposes a reflection target device, which comprises a base, a driving motor, a moving frame and a reflection mirror arranged on the moving frame are arranged on the base, the moving frame is in sliding connection with the base, and the driving motor is used to drive the moving frame to move.

[0007] Preferably, a sliding assembly is further arranged on the base, the sliding assembly comprises a linear guide rail fixed on the base and a sliding seat in sliding cooperation with the linear guide rail, and the moving frame is arranged on the sliding seat.

[0008] Preferably, the output shaft of the driving motor is arranged vertically, a transmission assembly is further arranged on the base, the transmission assembly comprises a rotating arm connected with the output shaft of the driving motor, a sliding rod is connected to the free end of the rotating arm, a fixed seat is arranged on the moving frame, and a strip-shaped sliding hole in sliding cooperation with the sliding rod is arranged on the fixed seat, and the arrangement direction of the strip-shaped sliding hole is perpendicular to the moving direction of the moving frame.

[0009] Preferably, the moving frame is provided with a mounting portion and a mounting slot on the mounting portion, and the reflecting mirror is obliquely arranged in the mounting slot.

[0010] Preferably, the mounting portion is provided with a pressing piece for fixing the reflecting mirror, and the pressing piece is detachably connected with the moving frame.

[0011] Preferably, the mounting portion is provided with a notch corresponding to the mounting slot.

[0012] Preferably, the moving frame is provided with an inductive sheet, and the base is further provided with a photoelectric sensor on a moving path of the inductive sheet.

[0013] Preferably, the base is further provided with a limiting block on a moving path of the moving frame.

[0014] Preferably, the driving motor is a stepping motor, and the reflecting target device further comprises a stepping driver electrically connected with the stepping motor.

[0015] The present application further provides a laser cutting machine comprising a laser and the aforementioned reflecting target device, wherein the reflecting target device comprises a base, and the base is provided with a driving motor, a moving frame and a reflecting mirror mounted on the moving frame, the moving frame is slidably connected with the base, and the driving motor is used for driving the moving frame to move.

[0016] The reflecting target device of the technical scheme of the embodiment of the present application drives the reflecting mirror to move back and forth under the driving of the driving motor, so as to make the reflecting mirror block the light path of the laser to reflect the laser beam, or make the reflecting mirror leave the light path of the laser to make the laser beam normally emit and cut; the reflecting target device is arranged outside the laser in application, and will not damage the internal devices of the laser to cause faults, thereby prolonging the service life and reducing the maintenance cost; in addition, the reflecting target device is driven by the driving motor, compared with the existing driving structure using the air cylinder, the moving distance of the reflecting target is adjustable, the structure is light, occupies small position and is simple to install, and is electrically controlled, has fast response speed and high stability. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 FIG. 1 is a structural schematic view of a reflecting target device in an embodiment of the present application;

[0018] Figure 2 FIG. 2 is an exploded structural schematic view of the reflecting target device in the embodiment of the present application; Figure 1 DETAILED DESCRIPTION

[0019] ​Clearly and completely describe the scheme in the embodiments of the present application in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the present application.

[0020] The present application provides a reflective target device, referring to Figure 1 The reflective target device comprises a base 100, a driving motor 200, a moving frame 300 and a reflecting lens 400 mounted on the moving frame 300 are arranged on the base 100, the moving frame 300 is slidingly connected with the base 100, and the driving motor 200 is used to drive the moving frame 300 to move.

[0021] The reflective target device involved in the embodiment is used as a device for reflecting laser beams, which is used in cooperation with a laser. After the laser cuts a glass workpiece, the laser beams emitted by the laser are reflected to other absorption surfaces to dissipate heat, so as to switch the light path of the laser beams. Specifically, the reflective target device mainly comprises a base 100, a driving motor 200, a moving frame 300 and a reflecting lens 400. The base 100 can adopt a seat structure as a structural basis, which is used to arrange components such as the driving motor 200 and the moving frame 300, and can realize the overall installation of the reflective target device on a laser cutting device. As an optimization, the base 100 is provided with a plurality of mounting holes, which are fixed on the laser cutting device by bolts passing through the mounting holes, so that the reflective target device is convenient to disassemble and assemble.

[0022] The moving frame 300 can be a frame structure, which is used to mount the reflecting lens 400 and is slidingly connected with the base 100 to realize sliding on the base 100. The form of sliding connection can be various, such as setting a guide rail sliding seat or a guide rod sliding block structure, but is not limited thereto. The reflecting lens 400 is used to receive and reflect laser beams. In specific arrangement, the reflecting lens 400 can adopt a laser optical lens produced by the Karmenhas Laser Technology Company.

[0023] In addition, the driving motor 200 is arranged on the base 100, which is used to drive the moving frame 300 to move. The base 100 is provided with a motor mounting plate 110, the motor mounting plate 110 is provided with a shaft hole and a plurality of mounting holes arranged around the shaft hole, the output shaft of the driving motor 200 passes through the shaft hole and is fixed on the motor mounting plate 110 by screwing between the body of the driving motor 200 and the mounting hole. The driving motor 200 and the moving frame 300 are connected through a transmission structure to realize transmission. The transmission structure can be various, such as a gear and rack, a synchronous pulley assembly, etc., and the specific arrangement is determined according to the actual situation. It is easy to understand that the rotation angle of the driving motor 200 can be adjusted to adjust the moving stroke of the reflecting target.

[0024] In the present reflective target device, the moving frame 300 drives the reflecting lens 400 to move back and forth under the driving of the driving motor 200, so that the reflecting lens 400 blocks the light path of the laser to reflect the laser beam, or the reflecting lens 400 leaves the light path of the laser to make the laser beam normally emit and cut.

[0025] The present reflective target device is arranged outside the laser when applied, which will not damage the internal components of the laser to cause failure, thereby prolonging the service life and reducing the maintenance cost. In addition, the reflective target is driven by the driving motor 200, compared with the existing driving structure using the air cylinder, the moving distance of the reflective target is adjustable, the structure is light, occupies small position and is easy to install, and is electrically controlled, fast response speed and high stability.

[0026] In a preferred embodiment, referring to Figure 1 and Figure 2 The base 100 is further provided with a sliding assembly 500, the sliding assembly 500 includes a linear guide rail 510 fixed on the base 100 and a sliding seat 520 in sliding cooperation with the linear guide rail 510, and the moving frame 300 is installed on the sliding seat 520. Through the sliding assembly 500, the moving frame 300 can slide on the base 100. Specifically, the forward and reverse rotation of the driving motor 200 can drive the moving frame 300 to move back and forth along the linear guide rail 510. Among many sliding structures, the sliding assembly 500 preferably uses the linear guide rail 510 and the sliding seat 520, which is stable and has high precision.

[0027] In a preferred embodiment, referring to Figure 1 and Figure 2 The output shaft of the driving motor 200 is vertically arranged, and the base 100 is further provided with a transmission assembly 600, the transmission assembly 600 includes a rotating arm 610 connected with the output shaft of the driving motor 200, the free end of the rotating arm 610 is connected with a sliding rod 620, and the moving frame 300 is provided with a fixed seat 630 and a strip-shaped sliding hole 10 located on the fixed seat 630 and in sliding cooperation with the sliding rod 620, the setting direction of the strip-shaped sliding hole 10 is perpendicular to the moving direction of the moving frame 300. Through the transmission assembly 600, the driving motor 200 can drive the moving frame 300. Specifically, when the driving motor 200 operates, the output shaft drives the rotating arm 610 to rotate, so that the sliding rod 620 moves along the strip-shaped sliding hole 10 to drive the fixed seat 630 and the moving frame 300 to move. The transmission assembly 600 of the present embodiment has simple and compact structure, small volume, does not occupy space and is easy to install.

[0028] For the convenience of pushing the fixed seat 630 by the slide rod 620, the structure is further optimized, and the slide rod 620 is sleeved with a bearing 640 which is in rolling fit with the strip-shaped sliding hole 10. The bearing 640 is installed on the slide rod 620, and the inner ring of the bearing 640 is in interference fit with the slide rod 620. The slide rod 620 can reduce the friction with the hole wall of the strip-shaped sliding hole 10 and reduce the wear of the fixed seat 630 in the process of pushing the fixed seat 630, thereby prolonging the service life. In addition, the slide rod 620 can also be provided with a spacer ring located on the side of the bearing 640. The bearing 640 is installed and limited by the spacer ring, thereby improving the stability of the structure.

[0029] In a preferred embodiment, referring to Figure 2 , the moving frame 300 is provided with a mounting portion 310 and a mounting groove 20 located on the mounting portion 310, and the reflecting mirror 400 is obliquely arranged in the mounting groove 20. The mounting groove 20 provided on the mounting portion 310 is used to mount the reflecting mirror 400, and the mounting groove 20 has a receiving portion at the groove bottom for carrying the reflecting mirror 400. In the mounting groove 20, the reflecting mirror 400 is arranged in an oblique upward state, and the preferred inclination angle is 45°. In this way, when the reflecting mirror 400 is located below the laser, the laser beam emitted vertically downward by the laser can be reflected in a horizontal and vertical state.

[0030] Further, referring to Figure 1 and Figure 2 , the mounting portion 310 is provided with a pressing piece 700 for fixing the reflecting mirror 400, and the pressing piece 700 is detachably connected with the moving frame 300. The pressing piece 700 fixes the reflecting mirror 400 in the mounting groove 20 by pressing the edge of the reflecting mirror 400, and the pressing piece 700 is fixed on the moving frame 300 by a plurality of screws to ensure the pressing force and facilitate disassembly and assembly.

[0031] Further, referring to Figure 2 , the mounting portion 310 is provided with a notch 30 corresponding to the mounting groove 20. Through the notch 30, the reflecting mirror 400 can be quickly disassembled and assembled on the moving frame 300, saving time and effort. The size of the notch 30 is set according to the actual situation.

[0032] In a preferred embodiment, referring to Figure 1 and Figure 2 , the moving frame 300 is provided with a sensing piece 800, and the base 100 is further provided with a photoelectric sensor 900 located on the moving path of the sensing piece 800. The photoelectric sensor 900 is an origin switch. After the driving motor 200 is powered on, the driving motor 200 drives the moving frame 300 and the reflecting mirror 400 to move. When the sensing piece 800 on the moving frame 300 reaches the photoelectric sensor 900, the photoelectric sensor 900 sends a signal to the driving motor 200, and the driving motor 200 stops driving to make the reflecting target stop moving, thereby finding the origin position.

[0033] Further, referring to Figure 1 and Figure 2 , the base 100 is further provided with a limiting block 1000 on the moving path of the moving frame 300. The limiting block 1000 can be a single block or two oppositely arranged blocks. Through the limiting block 1000, the movement of the moving frame 300 can be limited, and the movement range of the moving frame 300 can be limited. When the photoelectric sensor 900 does not sense the sensing sheet 800, the limiting block 1000 can stop the movement of the reflecting target by blocking the moving frame 300, so as to ensure the safety of the equipment.

[0034] In a preferred embodiment, the driving motor 200 is a stepping motor, and the reflecting target device further comprises a stepping driver electrically connected with the stepping motor. The stepping driver is used for controlling the operation of the stepping motor, and the stepping driver is provided with a position table. According to the use requirement, the rotation angle of the stepping motor can be set by modifying the parameter value in the position table, so as to adjust the movement stroke of the reflecting target. The operation is simple, and the control is convenient. As an optimization, the stepping motor is connected with the stepping driver through aviation plugs, so as to ensure the sealing and reduce the pollution of the optical path device.

[0035] The present application also provides a laser cutting machine, which comprises a laser and a reflecting target device. The specific structure of the reflecting target device is referred to the above-mentioned embodiments. Since the laser cutting machine adopts all the technical solutions of the above-mentioned embodiments, it at least has all the technical effects brought by the technical solutions of the above-mentioned embodiments, which will not be repeated here.

[0036] The above-mentioned is only part or preferred embodiments of the present application, and neither the text nor the drawings can limit the scope of protection of the present application. Any equivalent structural transformation based on the content of the specification and drawings, or direct / indirect application in other related technical fields is included in the scope of protection of the present application.

Claims

1. A reflective target device, characterized by The application relates to a reflecting target device, which comprises a base, a driving motor, a moving frame and a reflecting lens installed on the moving frame, wherein the moving frame is in sliding connection with the base, and the driving motor is used for driving the moving frame to move. The output shaft of the driving motor is vertically arranged, and the base is further provided with a transmission assembly, which comprises a rotating arm connected with the output shaft of the driving motor, the free end of the rotating arm is connected with a sliding rod, the moving frame is provided with a fixing seat and a strip-shaped sliding hole on the fixing seat and in sliding cooperation with the sliding rod, the setting direction of the strip-shaped sliding hole is perpendicular to the moving direction of the moving frame, the driving motor drives the rotating arm to rotate, so that the sliding rod moves along the strip-shaped sliding hole to drive the fixing seat and the moving frame to move. The base is further provided with a sliding assembly, which comprises a linear guide rail fixed on the base and a sliding seat in sliding cooperation with the linear guide rail, and the moving frame is installed on the sliding seat. The rotating arm, the fixing seat, the sliding seat and the linear guide rail are sequentially and laminatedly arranged, and the moving frame is partially located between the fixing seat and the sliding seat.

2. The reflective target device of claim 1, wherein, The moving frame is provided with a mounting portion and a mounting groove on the mounting portion, and the reflecting lens is obliquely arranged in the mounting groove.

3. The reflective target device of claim 2, wherein, The mounting portion is provided with a pressing piece for fixing the reflecting lens, and the pressing piece is detachably connected with the moving frame.

4. The reflective target device of claim 2, wherein, The mounting portion is provided with a notch corresponding to the mounting groove.

5. The reflective target device of claim 1, wherein, The moving frame is provided with an inductive sheet, and the base is further provided with a photoelectric sensor on the moving path of the inductive sheet.

6. The reflective target device of claim 5, wherein, The base is further provided with a limiting block on the moving path of the moving frame.

7. The reflective target device of claim 1, wherein, The driving motor is a stepping motor, and the reflecting target device further comprises a stepping driver in electric connection with the stepping motor.

8. A laser cutting machine characterized by, The application further relates to a laser device comprising the reflecting target device as claimed in any one of claims 1 to 7.

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