Optical filter switching rotating wheel mechanism

Abstract

An optical filter switching rotating wheel mechanism belongs to the technical field of laser processing equipment and is composed of a stepping motor, a rotating wheel disc, a filtering assembly, a mounting seat, a zero-point positioning switch and a stop pin, the stepping motor drives the rotating wheel disc to rotate, the rotating wheel disc drives the stop pin and the zero-point positioning switch to form touch, and the positioning switch feeds back to a control system. The control system sends switching signals to the stepping motor, the light filtering assemblies are evenly arranged on the rotating wheel disc, the rotating wheel disc is driven to rotate through the stepping motor according to the corresponding laser beams, and the light filtering assemblies are made to rotate to the corresponding laser beams to complete shielding and non-shielding actions. The device is compact in structure, can be installed and used in a small space, is convenient to install and maintain in the later period, can be rapidly switched according to different light beams, meets the shielding and non-shielding working states of various laser beams, meets the requirements of continuous machining working conditions, and is high in working efficiency.

Description

TECHNICAL FIELD

[0001] The utility model belongs to laser processing equipment technical field relates to a laser optical shutter, specifically speaking is related to an optical filter switching runner mechanism. BACKGROUND

[0002] With the rapid development of processing manufacturing industry, numerical control laser processing technology is replaced gradually traditional processing means in nonmetal and metal processing field with its flexibility and flexibility, has been widely applied in various trades and professions. Although the popularization of laser processing equipment improves processing efficiency and precision, but also puts forward higher requirements to the stability and reliability of laser equipment. Laser processing optical path control is an important technical means to improve processing stability and efficiency, and laser optical shutter is an important module of laser optical path control, and its working precision, efficiency and stability performance are particularly important.

[0003] At present, the existing laser light blocking mechanism generally adjusts the laser light hole according to the size of the laser beam. For most laser beams, the light blocking plate is often adjusted manually to block or absorb. The manual adjustment mechanism is mostly limited to the limited space of rising and falling, and the adjustment process is complicated. The working efficiency and stability of the light path control in the laser automatic processing equipment are low, which is not conducive to the control of the light path. Chinese patent application No. 202323596175.7 utility model patent proposes an embedded laser beam light blocking mechanism, which is composed of a stepping motor, a machine base, a light blocking plate, a micro switch, a shaft sleeve and a blocking needle connection. The shaft sleeve is driven to rotate by the stepping motor, the light blocking plate is driven to rotate by the shaft sleeve, the laser beam is blocked, and the blocking needle at the bottom of the shaft sleeve is in limiting contact with the moving spring leaf of the micro switch to control the on and off of the stepping motor, so that the light blocking plate can quickly and accurately block or pass the laser beam, and the blocking efficiency is improved. But this technical scheme can only be used for blocking a single laser beam, but in actual use, different attenuation rates often require different specifications of filter, so it cannot meet the blocking of multiple filter beams, especially the blocking of multiple rotating filter beams, which is not conducive to the flexible control of the light path. UTILITY MODEL CONTENTS

[0004] The utility model discloses in view of the existing laser light blocking mechanism can only be used for the blocking of single laser beam, cannot meet the blocking of multiple filter beams, and the control of the light path is not good, etc. An optical filter switching runner mechanism is provided, which can quickly and accurately control the switching of the runner disc according to the blocking needs of different beams, meet the blocking or passing of multiple optical filters, and improve the working efficiency.

[0005] The optical filter switching runner mechanism provided in the application adopts the following technical scheme:

[0006] An optical filter switching rotary mechanism, comprising a stepper motor; characterized in that the filter switching rotary mechanism comprises:

[0007] A mounting seat fixedly arranged above the stepper motor;

[0008] A zero point positioning switch fixedly arranged inside the mounting seat;

[0009] A rotary disc connected and fixed with the rotating shaft of the stepper motor and rotating with the rotating shaft;

[0010] A filter assembly arranged in an annular array on the rotary disc and connected and fixed with the rotary disc;

[0011] A needle stopper connected and fixed with the rotary disc, rotating with the rotary disc and in contact with the zero point positioning switch.

[0012] By adopting the above technical scheme, the stepper motor drives the rotary disc to rotate, the rotary disc drives the needle stopper to form a touch with the zero point positioning switch, the positioning switch feeds back to the control system, the control system sends a switching signal to the stepper motor, the filter assembly is uniformly arranged on the rotary disc, and according to the corresponding light beam shielding, the filter assembly is rotated to the corresponding light beam to complete the shielding and non-shielding actions by driving the rotary disc to rotate through the stepper motor.

[0013] Further, the rotary disc is provided with through holes in an array, and the filter assembly is clamped and fixed in correspondence with the through holes.

[0014] By adopting the above technical scheme, the filter assembly and the rotary disc can be quickly clamped and fixed, which is conducive to the quick installation and replacement of the filter assembly as a whole.

[0015] Further, the filter assembly is composed of a filter seat, a filter and a compression ring; the filter is arranged in the filter seat, and the compression ring is threadedly connected with the filter seat and compresses the filter.

[0016] By adopting the above technical scheme, the filter is compressed in the filter seat through the compression ring, which can reduce the shaking of the filter caused by the quick rotation of the rotary disc and improve the stability of the filter assembly in operation.

[0017] Further, a plurality of locking grooves are uniformly arranged on the upper surface of the compression ring, and the locking grooves are one-dimensional grooves with a number not less than two.

[0018] By adopting the above technical scheme, the arrangement of the locking grooves is conducive to the locking installation between the compression ring and the filter seat, so as to sufficiently compress the filter by the compression ring, and also conducive to the disassembly of the compression ring, so as to facilitate the replacement of the filter in the later period.

[0019] Further, the rotating shaft is connected and fixed with the rotary disc through a shaft coupling, and the needle stopper is threadedly connected and fixed with the shaft coupling.

[0020] By adopting the technical scheme, the stepping motor and the rotating disc are connected stably and detachably, and the needle stopper and the rotating disc are connected stably and detachably, so that the maintenance of the components is facilitated.

[0021] Further, the mounting seat is externally provided with a controller interface.

[0022] By adopting the technical scheme, the controller interface is an integrated interface, and the connection between the stepping motor and the external control system is facilitated.

[0023] In summary, the utility model has at least the following beneficial technical effects:

[0024] (1) The utility model discloses a compact structure, can install use in smaller space, and the detachable between each component, and the installation and later maintenance are more convenient.

[0025] (2) The utility model discloses a stepping motor, needle stopper, zero point positioning switch and other components adopt the embedded structure, can effectively prevent the dust or pollutant of outside influence transmission component in the processing, improves the stable performance of transmission component work.

[0026] (3) The filter assembly position on the rotating disc of the utility model can be quickly switched according to different light beams, meets the shielding and non-shielding working state of various laser beams, meets the continuous processing working condition requirement, and the working efficiency is high.

[0027] (4) The filter assembly and the rotating disc are connected conveniently in the utility model, and the filter assembly can be quickly replaced. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 It is the whole structure schematic diagram of the utility model.

[0029] Figure 2 It is the bottom structure schematic diagram of the utility model.

[0030] Figure 3 It is the overhead structure schematic diagram of the utility model.

[0031] Figure 4 It is Figure 3 It is the full cross-section structure schematic diagram of A-A direction in the utility model.

[0032] Figure 5 It is the filter assembly structure schematic diagram in the utility model.

[0033] Figure 6 It is the mounting seat internal structure schematic diagram in the utility model.

[0034] Figure 7The position corresponding structure diagram of the needle stopper and the zero point positioning switch in the utility model.

[0035] In the figure: the stepping motor 1, the rotating shaft 1-1, the controller interface 2, the rotating disc 3, the through hole 3-1, the light filter assembly 4, the light filter seat 4-1, the stepped hole 4-1-1, the internal thread 4-1-2, the light filter 4-2, the compression ring 4-3, the locking groove 4-3-1, the external thread 4-3-2, the mounting seat 5, the shaft coupling 6, the first positioning switch 7, the needle stopper 8, the second positioning switch 9. DETAILED DESCRIPTION

[0036] The utility model is further illustrated below in combination with the drawings and specific embodiments, and it should be understood that these embodiments are only used for illustrating the utility model patent and are not used for limiting the range of the utility model patent, and after reading the utility model patent, the modification of various equivalent forms of the utility model patent by the person skilled in the art all falls within the range defined by the claims attached to the application.

[0037] Embodiment 1

[0038] As Figures 1-4 shown, an optical light filter switching rotating disc mechanism is composed of the stepping motor 1, the rotating disc 3, the light filter assembly 4, the mounting seat 5, the zero point positioning switch 7 and the needle stopper 8, the mounting seat 5 is fixedly arranged above the stepping motor 1, the zero point positioning switch 7 is fixedly arranged in the interior of the mounting seat 5, the rotating disc 3 is connected and fixed with the rotating shaft 1-1 of the stepping motor 1 and rotates along with the rotating shaft 1-1, the light filter assembly 4 is annularly arranged on the rotating disc 3 and is connected and fixed with the rotating disc 3, the needle stopper 8 is connected and fixed with the rotating disc 3, rotates along with the rotating disc 3 and is in contact connection with the zero point positioning switch 7. In this example, the rotating disc 3 is driven to rotate by the stepping motor 1, the needle stopper 8 is driven to touch the zero point positioning switch 7 by the rotating disc 3, the positioning switch feeds back to the control system, the control system is a single-chip microcomputer controller with the model 8051, the control system sends the switch signal to the stepping motor 1, the light filter assembly 4 is evenly arranged on the rotating disc 3, according to the corresponding laser beam, the rotating disc 3 is driven to rotate by the stepping motor 1, so that the light filter assembly 4 is rotated to the corresponding laser beam to complete the shielding and non-shielding action.

[0039] Embodiment 2

[0040] In order to make the light filter assembly and the rotating disc can form the quick clamping and fixing, this is advantageous to the quick installation and replacement of the light filter assembly as a whole. In this embodiment, the through hole 3-1 is arranged on the rotating disc 3, and specifically, as Figures 1-3 shown, the number of the through hole 3-1 is six, the included angle between each through hole 3-1 is 60 degrees, and the light filter assembly 4 is clamped and fixed with the through hole 3-1.

[0041] In order to reduce the shaking of the filter caused by the fast rotation of the rotating disc, the stability of the filter assembly is improved. In the embodiment, the filter is pressed in the filter seat by the compression ring. Specifically, as shown in Figures 4-5 , the filter assembly 4 is composed of a filter seat 4-1, a filter 4-2 and a compression ring 4-3; the filter 4-2 is placed in the stepped hole 4-1-1 of the filter seat 4-1, and the compression ring 4-3 is screwed between the filter seat 4-1 and the filter 4-2 through the internal thread 4-1-2 and the external thread 4-3-2, and the compression ring 4-3 is tightened to press the filter 4-2.

[0042] In order to fully press the filter by the compression ring, and also facilitate the disassembly of the compression ring, so as to facilitate the replacement of the filter in the later period. In the embodiment, the locking groove is arranged on the compression ring to achieve this, specifically, as shown in Figure 5 , the upper surface of the compression ring 4-3 is provided with a locking groove 4-3-1, and the locking groove 4-3-1 is a one-character groove. In the embodiment, the number of locking grooves is two, which are arranged at 180° on the compression ring.

[0043] Embodiment 3

[0044] In order to form stable and detachable connection between the stepping motor and the rotating disc, and between the needle stop and the rotating disc, so as to facilitate the maintenance of each part in the later period. In the embodiment, as shown in Figure 4 , Figure 6 , Figure 7 , the rotating shaft 1-1 is connected and fixed with the rotating disc 3 through the coupling 6, and the needle stop 8 is threadedly connected and fixed with the coupling 6. In order to enable the stepping motor to be quickly connected with the external controller, in the embodiment, the controller interface 2 is arranged outside the mounting seat 5, specifically, as shown in Figure 2 , Figure 4 , Figure 6 . In order to switch the working position of the rotating disc between the shielding position and the non-shielding position. In the embodiment, a zero-point positioning switch is adopted, specifically, as shown in Figure 4 , Figure 6 , Figure 7 , the needle stop forms precise touch with the spring piece of the zero-point positioning switch under the rotation of the disc, improving the control accuracy.

[0045] As shown in Figures 1-7As shown, the working principle of the optical filter switching rotary mechanism is as follows: as shown in the figure, when the stepper motor 1 drives the rotary disc 3 to rotate to the 0 position, the blocking needle 8 on the shaft coupling 6 touches the zero position positioning switch 7 installed in the mounting seat 5, the zero position positioning switch 7 feeds back to the external 80C51 single-chip microcomputer controller, the controller sends a stop switch signal to the stepper motor 1, the stepper motor 1 stops rotating and stops at position 0; power on, the rotary disc 3 is at any position, the switching rotary disc 3 is counterclockwise rotated, zero calibration is performed, the angular displacement α0 of the center of the first filter and the zero position is found, after the stepper motor 1 is driven to rotate to find the zero point, the position 0 is recorded. When a laser beam is illuminated, the first filter assembly needs to be used for shielding, the stepper motor is driven to rotate from position 0, at the same time, the stepper motor 1 drives the rotary disc 3 to rotate counterclockwise α0+60°, that is, the first filter position is reached, so that the first optical filter is shielded, at this time, the stepper motor 1 stops at position 1; if the second filter assembly needs to be used for shielding, the stepper motor is driven to rotate from position 0, at the same time, the stepper motor 1 drives the rotary disc 3 to rotate counterclockwise α0+2×60°, that is, the second filter position is reached, so that the second optical filter is shielded, at this time, the stepper motor 1 stops at position 2, and the positions of other filter assemblies are sequentially arranged.

Claims

1. An optical filter switching turn mechanism comprising a stepper motor (1); characterized in that, The filter switching rotating wheel mechanism comprises: a mounting seat (5) fixedly arranged above the stepping motor (1); a zero point positioning switch (7) fixedly arranged inside the mounting seat (5); a rotating wheel disc (3) connected and fixed with the rotating shaft (1-1) of the stepping motor (1) and rotating along with the rotating shaft (1-1); a filter assembly (4) annularly arranged on the rotating wheel disc (3) and connected and fixed with the rotating wheel disc (3); a needle stopper (8) connected and fixed with the rotating wheel disc (3), rotating along with the rotating wheel disc (3) and in contact with the zero point positioning switch (7).

2. An optical filter switching turret mechanism according to claim 1, characterized in that: The rotating wheel disc (3) is provided with through holes (3-1) arranged thereon, and the filter assembly (4) is clamped and fixed in correspondence with the through holes (3-1).

3. An optical filter switching turnwheel mechanism according to claim 2, characterized in that: The filter assembly (4) is composed of a filter seat (4-1), a filter (4-2) and a press ring (4-3); the filter (4-2) is arranged in the filter seat (4-1), and the press ring (4-3) is threadedly connected with the filter seat (4-1) and presses the filter (4-2).

4. An optical filter switching turnwheel mechanism according to claim 3, characterized in that: The upper surface of the press ring (4-3) is uniformly provided with locking grooves (4-3-1), which are one-word grooves and the number of which is not less than two.

5. An optical filter switching turret mechanism according to claim 1, characterized in that: The rotating shaft (1-1) is connected and fixed with the rotating wheel disc (3) through a coupling (6), and the needle stopper (8) is threadedly connected and fixed with the coupling (6).

6. An optical filter switching turret mechanism according to claim 1, characterized in that: The mounting seat (5) is externally provided with a controller interface (2).

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