Monitoring device for testing laser module

Abstract

The utility model discloses a monitoring device for laser module testing, which relates to the technical field of laser module testing, and comprises a mounting frame, a laser module testing device and a monitoring device, the photoelectric sensor is mounted on the mounting frame, the photoelectric sensor is provided with a receiving end, and the receiving end is arranged towards a to-be-measured light path of the laser module; the comparison control module is electrically connected with the photoelectric sensor; and an alarm module. According to the technical scheme of the utility model, the leaked laser forms abnormal light, the photoelectric sensor can convert the received abnormal light into an abnormal voltage signal, and the comparison control module can control the closing of the laser module so as to improve the closing speed of the laser module, thereby reducing the continuous leakage of the abnormal light, and improving the reliability of the device. By quickly closing the laser module, damage caused by abnormal light is prevented from being further increased, and the problem that devices in a light path are easily burnt by the abnormal light is solved on the whole.

Description

TECHNICAL FIELD

[0001] The utility model relates to laser module test technical field, especially a kind of monitoring device for laser module test. BACKGROUND

[0002] Fiber laser has the miniaturization, light speed quality is good and high power and so on advantage, often applied in various processing fields.In the production process of fiber laser, optical path production plays a vital role, so as to ensure quality, power-on test light effect needs to be carried out multiple times in the whole process.However, with the continuous increase of power, once optical path is abnormal and disconnected from the middle, laser leaks from optical path, and forms abnormal light, and abnormal light is easy to burn the device in optical path. SUMMARY

[0003] The utility model discloses a kind of monitoring devices for laser module test, to improve the problem that abnormal light is easy to burn the device in optical path.

[0004] To achieve the above object, the monitoring device for laser module test provided by the utility model comprises:

[0005] Mounting frame, for being fixed on laser module;

[0006] Photoelectric sensor, installed on the mounting frame, the photoelectric sensor has receiving end, and the receiving end is towards the optical path to be measured of laser module;

[0007] Comparison control module, electrically connected with the photoelectric sensor, the comparison control module is used for electrically connecting laser module;And,

[0008] Alarm module, electrically connected with the comparison control module.

[0009] In an embodiment, the monitoring device for laser module test further includes voltage amplifier, and the voltage amplifier is electrically connected with the photoelectric sensor and the comparison control module.

[0010] In an embodiment, the mounting frame includes mounting frame, and the mounting frame is used to be arranged around the optical path to be measured of laser module, and the photoelectric sensor is provided with multiple, and multiple photoelectric sensors are sequentially arranged along the circumference of the mounting frame.

[0011] In an embodiment, the receiving end of the photoelectric sensor is provided with filter, and the filter is used to filter visible light.

[0012] In an embodiment, the comparison control module includes computer.

[0013] In an embodiment, the mounting frame comprises a mounting frame arranged around the to-be-measured light path of the laser module, and the photoelectric sensor is slidably arranged on the mounting frame.

[0014] In an embodiment, the photoelectric sensor is connected with a support frame, the support frame comprises a sliding seat and a connecting piece; the mounting frame has a mounting groove arranged along the circumferential direction thereof, the sliding seat is slidably arranged in the mounting groove, and the connecting piece connects the photoelectric sensor and the sliding seat.

[0015] In an embodiment, the connecting piece comprises a flexible connecting rod.

[0016] In an embodiment, the mounting frame is provided with scale lines along the extension direction of the mounting groove.

[0017] In an embodiment, the alarm module comprises a light alarm assembly; and / or, the alarm module comprises the sound alarm assembly.

[0018] The technical scheme of the utility model discloses the mounting frame, guarantees the installation of photoelectric sensor, after the abnormality of to-be-measured light path occurs and is disconnected from the middle, the laser leaks from to-be-measured light path, the abnormal light of leaked laser forms, abnormal light can enter the receiving end of photoelectric sensor, and photoelectric sensor can convert the abnormal light received into abnormal voltage signal, then abnormal voltage signal is sent into comparison control module, and the voltage signal of photoelectric sensor transmission is detected through comparison control module, when comparison control module detects abnormal voltage signal, comparison control module can control laser module to close, to improve the closing speed of laser module, to reduce the continuous leakage of abnormal light, to avoid the further increase of damage caused by abnormal light, and comparison control module can control alarm module to send alarm, to facilitate the leakage condition of abnormal light of operator, and operator can quickly check the opening and closing of laser module, if laser module is not closed, operator can manually and quickly close the power supply of laser module to close laser module, in the application, when abnormal light generates, laser module is quickly closed to reduce the damage of abnormal light to the device in light path, and the problem that abnormal light is easy to burn the device in light path is improved as a whole. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained according to the structure shown in the drawings without creating labor.

[0020] Figure 1 Structure schematic diagram of one embodiment of the monitoring device for laser module test provided by the utility model;

[0021] Figure 2 For Figure 1 Partial section schematic diagram of the monitoring device for laser module test in the utility model;

[0022] Figure 3 For Figure 2 Partial enlarged schematic diagram of A part in the utility model;

[0023] Figure 4 For Figure 1 Partial enlarged schematic diagram of B part in the utility model.

[0024] Explanation of reference numerals:

[0025] 1, mounting frame;11, clamping block;12, mounting groove;13, scale line;2, photoelectric sensor;21, receiving end;3, comparison control module;31, display screen;4, clamping seat;41, clamping groove;42, pointer;5, laser module;51, shell;511, clamping groove;52, mounting structure;6, voltage amplifier;7, support frame;71, sliding seat;72, connecting piece;8, filter sheet.

[0026] The utility model discloses the realization, functional characteristics and advantages will be further described with reference to the embodiment, with the attached drawing. Specific implementation

[0027] The technical scheme in the utility model embodiment will be clearly and completely described below with reference to the attached drawings of the utility model embodiment, and obviously, the described embodiment is only a part of the embodiment of the utility model, not all the embodiment. Based on the embodiment in the utility model, all other embodiments obtained by the person skilled in the art without making creative labor belong to the scope of the utility model protection.

[0028] It should be noted that if the utility model embodiment involves directional indication (such as up, down, left, right, front, back, etc.), the directional indication is only used to explain the relative position relationship, movement condition, etc. between the components in a certain specific posture, if the specific posture changes, the directional indication also changes accordingly.

[0029] In addition, if the description of "first", "second" and the like is involved in the embodiments of the utility model, the description of "first", "second" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can be explicitly or implicitly included at least one feature. In addition, if "and / or" or "and / or" appears throughout the text, it means that the three parallel schemes are included, for example, "A and / or B" includes A scheme, or B scheme, or A and B scheme. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, also not within the protection scope required by the utility model.

[0030] With the continuous development of laser technology in recent years, laser is applied in the field of material processing more and more. Especially fiber laser, with its miniaturization, good beam quality, long-term stability, easy to realize high power / high efficiency and other advantages, plays an extremely important role in various processing fields. In the current most fiber laser manufacturing system, it is composed of optical part and electrical part, in the optical module, the optical fiber of the whole optical path bears very high laser energy.

[0031] In the manufacturing process of fiber laser, the optical path manufacturing plays a crucial role, so in order to ensure the quality, the power-on test and light effect need to be carried out many times in the whole process. However, with the continuous increase of power, once the optical path is abnormal and disconnected from the middle, the laser leaks from the optical path and forms abnormal light, which is easy to burn the device in the optical path.

[0032] The utility model provides a kind of monitoring device for laser module test.

[0033] Please refer to Figure 1 In an embodiment of the utility model, the monitoring device for laser module test comprises:

[0034] Mounting bracket 1 is used to be fixed on laser module 5;

[0035] Photoelectric sensor 2 is installed on mounting bracket 1, photoelectric sensor 2 has receiving end 21, and receiving end 21 is arranged towards the optical path to be measured of laser module 5;

[0036] Comparative control module 3 is electrically connected with photoelectric sensor 2;And,

[0037] Alarm module is electrically connected with comparative control module 3.

[0038] The technical scheme of the utility model discloses mounting frame 1, guarantee the installation of photoelectric sensor 2, after the abnormality of the light path to be measured occurs and disconnects from the middle, the laser leaks from the light path to be measured, the leaked laser forms abnormal light, the abnormal light can enter the receiving end 21 of photoelectric sensor 2, and photoelectric sensor 2 can convert the received abnormal light into abnormal voltage signal, then sends abnormal voltage signal into comparison control module 3, detects the voltage signal transmitted by photoelectric sensor 2 through comparison control module 3, when comparison control module 3 detects abnormal voltage signal, comparison control module 3 can control laser module 5 to close, to improve the closing speed of laser module 5, thereby reducing the continuous leakage of abnormal light, avoiding the further increase of damage caused by abnormal light, and comparison control module 3 can control alarm module to issue an alarm, which can facilitate the operator to judge the leakage of abnormal light, and the operator can quickly check the opening and closing of laser module 5, if laser module 5 is not closed, the operator can manually and quickly close the power supply of laser module 5 to close laser module 5, in the application, when abnormal light is generated, laser module 5 is quickly closed to reduce the damage of abnormal light to the device in the light path, and the problem that abnormal light is easy to burn the device in the light path is improved as a whole.

[0039] The mounting frame 1 comprises a mounting frame, and the mounting frame is used for being arranged around the light path to be measured of the laser module 5, and the photoelectric sensor 2 is provided with a plurality of photoelectric sensors 2, and the plurality of photoelectric sensors 2 are sequentially arranged along the circumference of the mounting frame.

[0040] The laser module 5 comprises a shell 51 and an installation structure 52 arranged in the shell 51, and the installation structure 52 is used for installing the light path to be measured.

[0041] The shell 51 is provided with a clamping groove 511 on the top side. The clamping groove 511 is sequentially arranged along the circumference of the light path to be measured, and preferably, the clamping groove 511 is annularly arranged. The bottom side of the mounting frame 1 is provided with a clamping block 11, and the clamping block 11 is matched with the clamping groove 511, so that when the mounting frame 1 is installed on the shell 51, the clamping groove 511 can be inserted into the clamping block 11, and the installation of the mounting frame 1 on the shell 51 is realized.

[0042] A sealing strip is arranged in the card slot 511, which can fill the internal gap of the card slot, i.e. the sealing strip fills the gap between the housing 51 and the mounting frame, thereby ensuring the sealing during laser testing.

[0043] The photoelectric sensor 2 is preferably a PD sensor.

[0044] The laser module 5 is usually manufactured and tested in a non-darkroom environment. In order to reduce the influence of visible ambient light, the receiving end 21 of the photoelectric sensor 2 is provided with a filter 8 for filtering out visible light. By using the filter 8, the visible light received by the photoelectric sensor 2 can be reduced, and the voltage signal generated by the photoelectric sensor 2 due to ambient light can also be reduced.

[0045] The monitoring device for testing the laser module further comprises a voltage amplifier 6 electrically connected to the photoelectric sensor 2 and the comparison control module 3. By using the voltage amplifier 6, the voltage signal transmitted to the comparison control module 3 can be amplified, thereby facilitating the reception of the voltage signal by the comparison control module 3.

[0046] The voltage amplifier 6 has a plurality of amplification modules, each of which corresponds to one of the photoelectric sensors 2. The amplification modules are connected to the comparison control module 3 and the corresponding photoelectric sensors 2. The amplification modules can amplify the voltage signal generated by each photoelectric sensor 2 and transmit the amplified voltage signal to the comparison control module 3.

[0047] The comparison control module 3 can be a control system composed of any chip, such as a single-chip microcomputer. Preferably, the comparison control module 3 is a computer, which comprises a display screen 31. By using the display screen 31, the voltage signal value received by the computer can be observed.

[0048] The comparison control module 3 has an alarm voltage corresponding to each photoelectric sensor 2. When no abnormal light is generated in the to-be-tested light path, the voltage generated by the photoelectric sensor 2 after being amplified by the voltage amplifier 6 is not higher than the corresponding alarm voltage. When abnormal light is generated in the to-be-tested light path, the voltage generated by the photoelectric sensor 2 receiving the abnormal light after being amplified by the voltage amplifier 6 is higher than the corresponding alarm voltage. The comparison control module 3 compares the received voltage signal with the corresponding alarm voltage. When the voltage signal received by the comparison control module 3 is greater than the corresponding alarm voltage, the comparison control module 3 controls the alarm module to issue an alarm, and the comparison control module 3 controls the laser module 5 to be turned off, thereby quickly processing the abnormal light and reducing the further leakage of the abnormal light.

[0049] The alarm module comprises a light alarm component; the light alarm component comprises alarm lights, and the alarm lights can be provided in plurality, the colors of the alarm lights are different, and the alarm lights emit light, which is easy to identify.

[0050] The alarm module comprises the sound alarm component; the sound alarm component comprises multiple loudspeakers, the orientations of the loudspeakers are different, or the alarm sounds of the loudspeakers are different, the loudspeakers cooperate to timely emit prompt sound.

[0051] The mounting frame 1 comprises a mounting frame, which is arranged around the to-be-measured light path of the laser module 5, and a mounting groove 12 is arranged around the circumference of the mounting frame on the mounting frame; a support frame 7 is slidingly mounted on the mounting frame 1, and the photoelectric sensor 2 is arranged on the support frame 7. According to different to-be-measured light paths, the position of the photoelectric sensor 2 can be adjusted by sliding the support frame 7.

[0052] The support frame 7 comprises a sliding seat 71 and a connecting piece 72; the sliding seat 71 is slidingly mounted in the mounting groove 12, and the connecting piece 72 connects the photoelectric sensor 2 and the sliding seat 71. After the sliding seat 71 is slid along the mounting groove 12, the receiving end 21 of the photoelectric sensor 2 changes in orientation; in order to ensure that the receiving end 21 faces the to-be-measured light path, the receiving end 21 can be rotated to face the to-be-measured light path by rotating the connecting piece 72.

[0053] The connecting piece 72 comprises a flexible connecting rod. The orientation of the receiving end 21 can be adjusted by bending the connecting rod, so that the receiving end 21 faces the to-be-measured light path directly, thereby ensuring the sensing effect of the photoelectric sensor 2 on abnormal light.

[0054] The top side of the sliding seat 71 is connected with a clamping seat 73, the bottom side of the clamping seat 73 is formed with a clamping groove 731, and the side edge of the mounting frame is located in the clamping groove, thereby ensuring the stability of the sliding of the support frame 7.

[0055] Scale lines 13 are sequentially arranged on the mounting frame along the extension direction of the mounting groove 12. By means of the scale lines 13, the position of the sliding seat 71 can be conveniently read out, so as to determine the distance between two adjacent photoelectric sensors 2, thereby facilitating the adjustment of the position of the photoelectric sensor 2.

[0056] In order to conveniently read out the position of the sliding seat 71, a pointer 42 is arranged on the clamping seat 4, the pointer 42 faces the scale lines 13, and the position of the sliding seat 71 can be accurately read out by cooperation of the scale lines 13 and the pointer 42.

[0057] In the embodiment of the utility model, through the photoelectric sensor 2 to the received abnormal light conversion voltage signal of the pipeline to be measured, and the voltage signal is amplified, and the voltage signal after amplification is transported to the comparison control module 3, when the voltage of the voltage signal is greater than the preset alarm voltage in the comparison control module 3, the comparison control module 3 can control the alarm component to send alarm signal.

[0058] The above-mentioned is only the exemplary implementation of the utility model, and does not limit the patent range of the utility model, and any equivalent structure transformation made by the utility model specification and the attached drawings under the technical concept of the utility model, or direct / indirect application in other related technical fields are included in the patent protection range of the utility model.

Claims

1. A monitoring device for testing a laser module, characterized by The application relates to a monitoring device for testing a laser module. The monitoring device comprises: a mounting frame for being fixed on the laser module; a photoelectric sensor mounted on the mounting frame, the photoelectric sensor having a receiving end, the receiving end being arranged towards a light path to be tested of the laser module; a comparison control module electrically connected with the photoelectric sensor, the comparison control module being used for electrically connecting the laser module; and an alarm module electrically connected with the comparison control module. The monitoring device for testing the laser module further comprises a voltage amplifier, the voltage amplifier being electrically connected with the photoelectric sensor and the comparison control module. The mounting frame comprises a mounting frame body, the mounting frame body being arranged around the light path to be tested of the laser module, and the photoelectric sensor is provided in plurality, the plurality of photoelectric sensors being sequentially arranged along the circumferential direction of the mounting frame body. The receiving end of the photoelectric sensor is provided with a filter, the filter being used for filtering visible light.

2. The monitoring device for testing a laser module according to claim 1, wherein The comparison control module comprises a computer.

3. The monitoring device for testing a laser module according to claim 1, wherein The mounting frame comprises a mounting frame body, the mounting frame body being arranged around the light path to be tested of the laser module, and the photoelectric sensor is provided in plurality, the plurality of photoelectric sensors being sequentially arranged along the circumferential direction of the mounting frame body.

4. The monitoring device for testing a laser module according to claim 1, wherein The photoelectric sensor is connected with a support frame, the support frame comprising a sliding base and a connecting piece; the mounting frame body has a mounting groove arranged along the circumferential direction thereof, the sliding base being slidably mounted in the mounting groove, and the connecting piece connecting the photoelectric sensor and the sliding base.

5. The monitoring device for testing a laser module according to claim 1, wherein The connecting piece comprises a flexible connecting rod.

6. The monitoring device for testing a laser module according to claim 1, wherein The mounting frame body is sequentially provided with scale lines along the extension direction of the mounting groove.

7. The monitoring device for testing a laser module according to claim 6, wherein The alarm module comprises a light alarm assembly; and / or, the alarm module comprises a sound alarm assembly.

8. The monitoring device for testing a laser module according to claim 7, wherein ​ 9. The monitoring device for testing a laser module according to claim 7, wherein ​ 10. The monitoring device for testing a laser module according to claim 1, wherein, ​

Images