CN208060840U - light path switching device - Google Patents
light path switching device Download PDFInfo
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- CN208060840U CN208060840U CN201820429138.7U CN201820429138U CN208060840U CN 208060840 U CN208060840 U CN 208060840U CN 201820429138 U CN201820429138 U CN 201820429138U CN 208060840 U CN208060840 U CN 208060840U
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- motor
- light path
- path switching
- output shaft
- drive control
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Abstract
The utility model is related to a kind of light path switching devices, including pedestal, motor, total reflective mirror, drive control device, absolute rotary encoder and control system, motor is set on pedestal, total reflective mirror is installed on the output shaft of motor, drive control device is connected to the motor and is used to control motor work, and absolute rotary encoder is connected with drive control device and is detected to the rotation position of motor by absolute rotary encoder；Drive control device is connected with control system signal, and when output shaft rotary motion to the predeterminated position of motor, drive control device sends out feedback signal to control system；Control system controls laser emitting laser according to feedback signal.The light path switching device of the utility model, the output shaft of motor is detected using absolute rotary encoder, so that the total reflective mirror on the output shaft of motor has higher running precision, there is deviation so as to avoid switching-over light path, scaling loss rear class is effectively prevent to couple optical fiber.
Description
Technical field
The utility model is related to laser apparatus fields, more particularly to a kind of light path switching device.
Background technology
Since laser cost is very high, during being welded using laser, it is often necessary to defeated to laser
The laser gone out carries out light path switching to realize that multichannel is divided, and meets the welding demand of client.
Currently, when carrying out light path switching, generally use open loop type direct current generator or stepper motor are as adjustment light path
Power source, light modulation position determine that merely precision is relatively low by two point form limit sensors or number of motor steps.In addition, passing through direct current
When motor is adjusted light path, power-off restarting can have zero migration, and during the feedback regulation of open loop type, direct current generator
Easy to produce microseism.These bad phenomenons can influence the precision of light path switching, eventually lead to light path deviation and scaling loss rear class coupling
Closing light is fine.
Utility model content
Based on this, it is necessary to it is not high for current light path switching precision, it is easy to cause light path deviation and causes rear class coupling
The problem of optical fiber scaling loss, provides a kind of light path switching device.
A kind of light path switching device, including pedestal, motor, total reflective mirror, drive control device, absolute rotary encoder and control
System processed, the motor are set on the pedestal, and the total reflective mirror is installed on the output shaft of the motor, the drive control
Device is connected with the motor and is used to control the motor work, so that the output shaft of the motor drives the total reflective mirror rotation
Movement, the absolute rotary encoder are connected with the drive control device, and the drive control device is revolved by the absolute type
Turn encoder to be detected the rotation position of the motor；The drive control device is connected with the control system signal, when
When the absolute rotary encoder detects output shaft rotary motion to the predeterminated position of the motor, the drive control device
Feedback signal is sent out to the control system；The control system controls laser emitting laser according to the feedback signal.
The total reflective mirror is connected by swing arm with the output shaft of the motor in one of the embodiments, the swing arm
One end and the output shaft of the motor it is detachably connected, the total reflective mirror is installed on the other end of the swing arm.
One end that the swing arm is connected with the output shaft of the motor in one of the embodiments, offers mounting hole,
And the side wall of the mounting hole radially offers clip slot.
The two side arms of the clip slot offer the perforation passed through for locking member respectively in one of the embodiments,.
The locking member includes bolt or screw in one of the embodiments,.
The pedestal is equipped with locating part in one of the embodiments, and the locating part is located at the swing arm with described
On the track of the output shaft rotary motion of motor, to limit the rotation amplitude of the swing arm.
The locating part includes rubber block in one of the embodiments,.
The electric machine built-in has temp probe, the temp probe and the control system in one of the embodiments,
It is connected.
The pedestal includes the bottom plate being arranged in a mutually vertical manner and support plate in one of the embodiments, the bottom plate and
It is positioned by positioning pin between support plate, and is locked together by bolt.
Further include the radiating piece being coated on around the motor in one of the embodiments, is equipped in the radiating piece
Fluid channel, and the fluid channel has inlet and outlet.
In the light path switching device of the utility model, the output shaft of motor is examined using absolute rotary encoder
It surveys, there is higher precision to the rotation position of the total reflective mirror on the output shaft of motor so that pass through the total reflective mirror
Light path after switching over is not in offset, and then scaling loss rear class is avoided to couple optical fiber.
Description of the drawings
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it can also be obtained according to these attached drawings the attached drawing of other embodiment.
Fig. 1 is the functional block diagram of light path switching device in an embodiment；
Fig. 2 is the structural schematic diagram of light path switching device in an embodiment；
Fig. 3 be Fig. 2 shows light path switching device in, the output shaft of motor and the connection diagram of swing arm；
Fig. 4 is the attachment structure schematic diagram of pedestal in light path switching device；
Fig. 5 is the structural schematic diagram of radiating piece in an embodiment light path switching device.
Specific implementation mode
The utility model is more fully retouched below with reference to relevant drawings for the ease of understanding the utility model,
It states.The better embodiment of the utility model is given in attached drawing.But the utility model can come in many different forms
It realizes, however it is not limited to embodiments described herein.On the contrary, the purpose of providing these embodiments is that making new to this practicality
The disclosure of type understands more thorough and comprehensive.
It should be noted that when element is referred to as " being fixed on " another element, it can be directly on another element
Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it can be directly connected to
To another element or it may be simultaneously present centering elements.Term as used herein "inner", "outside", "left", "right" and
Similar statement for illustrative purposes only, is not offered as being unique embodiment.
Referring to Fig. 1, Fig. 1 shows the functional block diagram of the light path switching device in an embodiment, light path switching dress
It sets including power supply, motor, drive control device, absolute rotary encoder and control system, wherein motor passes through drive control device
It is connected with power supply, to control motor work by drive control device.In the embodiment, pass through absolute rotary encoder pair
The rotation position of motor is monitored, and is absolute position to the rotation position of known motor, without being fed back by open loop
Mode feed back the rotation position of motor to adjust electric machine operation state so that motor can smoothly work without producing
Raw microseism.
In conjunction with shown in Fig. 2 and Fig. 3, in above-mentioned light path switching device, motor 20 is arranged on pedestal 10, and in motor
Total reflective mirror 30 is installed on 20 output shaft 20a, when working to drive control device driving motor 20, total reflective mirror 30 will be with motor
20 output shaft 20a rotary motions together, since absolute rotary encoder can know the absolute rotational position of motor 20, from
And it can also obtain the position of total reflective mirror 30.
In the above embodiment, control system is connected with drive control device signal, is rotated from absolute type in drive control device
When encoder knows that the output shaft 20a of motor 20 rotates to given absolute position (calling in the following text " predeterminated position "), drive control device
Feedback information will be sent to control system so that control system can be controlled according to the feedback signal that drive control device is sent out
Laser emitting laser.Further, since signal is connected between control system and drive control device, to need to carry out light path
When switching, control system can send out control instruction so that drive control device receives 20 work of driving motor after the control instruction
Make and rotate total reflective mirror 30, to realize that light path switches.
It should be noted that absolute position given herein above is preset according to actual needs.
Specifically, when motor 20 turns to the absolute position, total reflective mirror 30 can reflect the laser light to production institute's phase when
The position waited for.That is, when output shaft 20a rotary motions to the predeterminated position of motor 20, total reflective mirror 30 is with motor 20
Output shaft 20a, which is rotated to light path, switches ready state, at this point, total reflective mirror 30 is in ready state with anti-by drive control device
The form of feedback signal is sent to control system, to which control system can control laser emitting laser according to the feedback signal,
Due to motor 20 output shaft 20a rotation position using absolute position so that total reflective mirror 30 is with the defeated of motor 20
The rotation positions shaft 20a are more accurate, to avoid laser by 30 switching-over light path of total reflective mirror scaling loss rear class coupling due to light path deviates
Closing light is fine.
It communicates it should be noted that serial ports RS232-C realizations may be used between drive control device and control system, also may be used
To be communicated using buses such as CAN-BUS and RS485.In addition, PLC controller may be used in drive control device, can also adopt
With other Series Controllers such as MCU, PGA or CPLD.
Temperature collecting module is also associated in drive control device, to be monitored to temperature, in temperature anomaly, to drive
Controller informs control system by way of above-mentioned serial communication or by high speed I O port of alarming, and makes control system to laser
Tripping protection is carried out, the excessively high damage equipment of temperature is avoided.In the embodiment, temperature collecting module, which can be, is built in motor 20
Temp probe, as PT100, NTC or K-type temperature acquisition pop one's head in.
Total reflective mirror 30 is connected by swing arm 40 with the output shaft 20a of motor 20, the output of one end and motor 20 of swing arm 40
Axis 20a is detachably connected, and total reflective mirror 30 is installed on the other end of swing arm 40.
In conjunction with shown in Fig. 2 and Fig. 4, swing arm 40 offers mounting hole 40a with the one end being connected the output shaft 20a of motor 20,
And the side wall of mounting hole 40a radially offers clip slot 40b.Have certain scaling empty to the assembly aperture of mounting hole 40a
Between, to adapt to the faint variation of size of the output shaft 20a of motor 20, so that swing arm 40 to be assembled to the output shaft 20a of motor 20
On.It should be noted that in the embodiment, the two side arms of clip slot 40b offer the perforation passed through for locking member 42 respectively
41a, so as to the locking members such as bolt 11b or screw 42 across perforation 41a and when locking the two side 41 of clip slot 40b, two side 41
Clamping force is formed at mounting hole 40a, swing arm 40 is fastened on the output shaft 20a of motor 20.
Pedestal 10 is equipped with locating part 50, and locating part 50 is located at output shaft 20a rotary motion of the swing arm 40 with motor 20
On track, to limit the rotation amplitude of swing arm 40, when to prevent swing arm 40 from total reflective mirror 30 being driven to carry out light path switching, beyond row
Journey range and influence device performance.
It should be noted that locating part 50 can be multiple, for example, 2 locating parts 50 are separately positioned on the two of swing arm 40
Side, with limit respectively swing arm 40 with motor 20 output shaft 20a forward directions and it is reverse when rotation amplitude.Locating part 50 includes rubber
Impact force of 40 rotary motion of swing arm to extreme position when is effectively relieved to be acted on using the elastic buffer of rubber block in block, to
Improve the stability of structure.
Pedestal 10 includes the bottom plate 11 being arranged in a mutually vertical manner and support plate 12, passes through positioning between bottom plate 11 and support plate 12
Pin 11a is positioned, and is locked together by bolt 11b.It, can be the bottom of to using positioning pin 11a in the embodiment
The installation site of plate 11 and support plate 12 carries out realization positioning, to prevent 12 relative shift of bottom plate 11 and support plate, so as to
Bottom plate 11 and support plate 12 are fixed together by convenient clamping screw 11b.
In conjunction with shown in Fig. 5, light path switching device further includes the radiating piece 60 being coated on around motor 20, is set in radiating piece 60
There is fluid channel (not shown), and fluid channel has inlet and outlet 60a.To which water is flowed through fluid by importing and exporting 60a cycles
Heat can be taken when channel out of, cause encoder temperature drift and mechanical temperature distortion to bring morpheme to which avoiding device temperature is excessively high
Error, and then ensure that the turned position of total reflective mirror 30 has higher precision, it can be accurately divided, avoid and light occur
Road deviation and scaling loss rear class couple optical fiber scaling loss.
Since the light path switching device has preferable heat dissipation and temperature acquisition performance, so as to multikilowatt high power
Laser carries out effective light path switching, meets the needs of the techniques such as multichannel light splitting welding, improves the utilization rate of laser equipment, drop
Low production cost.
Each technical characteristic of above example can be combined arbitrarily, to keep description succinct, not to above-described embodiment
In each technical characteristic it is all possible combination be all described, as long as however, the combination of these technical characteristics be not present lance
Shield is all considered to be the range of this specification record.
Above example only expresses the several embodiments of the utility model, the description thereof is more specific and detailed, but simultaneously
Cannot the limitation to utility model patent range therefore be interpreted as.It should be pointed out that for the ordinary skill people of this field
For member, without departing from the concept of the premise utility, various modifications and improvements can be made, these belong to this reality
With novel protection domain.Therefore, the protection domain of the utility model patent should be determined by the appended claims.
Claims (10)
1. a kind of light path switching device, which is characterized in that including pedestal, motor, total reflective mirror, drive control device, absolute type rotation
Encoder and control system, the motor are set on the pedestal, and the total reflective mirror is installed on the output shaft of the motor, institute
It states drive control device to be connected with the motor and be used to control the motor work, so that described in the output shaft drive of the motor
Total reflective mirror rotary motion, the absolute rotary encoder are connected with the drive control device, and the drive control device passes through institute
Absolute rotary encoder is stated to be detected the rotation position of the motor；The drive control device is believed with the control system
Number be connected, it is described when the absolute rotary encoder detects output shaft rotary motion to the predeterminated position of the motor
Drive control device sends out feedback signal to the control system；The control system controls laser according to the feedback signal and goes out
Penetrate laser.
2. light path switching device according to claim 1, which is characterized in that the total reflective mirror passes through swing arm and the motor
Output shaft be connected, one end of the swing arm and the output shaft of the motor are detachably connected, and the total reflective mirror is installed on institute
State the other end of swing arm.
3. light path switching device according to claim 2, which is characterized in that the output shaft phase of the swing arm and the motor
One end even offers mounting hole, and the side wall of the mounting hole radially offers clip slot.
4. light path switching device according to claim 3, which is characterized in that the two side arms of the clip slot offer confession respectively
The perforation that locking member passes through.
5. light path switching device according to claim 4, which is characterized in that the locking member includes bolt or screw.
6. light path switching device according to claim 2, which is characterized in that the pedestal is equipped with locating part, the limit
Position part is located on track of the swing arm with the output shaft rotary motion of the motor, to limit the rotation amplitude of the swing arm.
7. light path switching device according to claim 6, which is characterized in that the locating part includes rubber block.
8. light path switching device according to claim 1, which is characterized in that the electric machine built-in has temp probe, described
Temp probe is connected with the control system.
9. light path switching device according to claim 1, which is characterized in that the pedestal includes the bottom being arranged in a mutually vertical manner
Plate and support plate are positioned by positioning pin between the bottom plate and support plate, and are locked together by bolt.
10. according to claim 1-9 any one of them light path switching devices, which is characterized in that further include being coated on the electricity
Radiating piece around machine, the radiating piece is interior to be equipped with fluid channel, and the fluid channel has inlet and outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820429138.7U CN208060840U (en) | 2018-03-28 | 2018-03-28 | light path switching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820429138.7U CN208060840U (en) | 2018-03-28 | 2018-03-28 | light path switching device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208060840U true CN208060840U (en) | 2018-11-06 |
Family
ID=63987129
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820429138.7U Active CN208060840U (en) | 2018-03-28 | 2018-03-28 | light path switching device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208060840U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109286119A (en) * | 2018-09-29 | 2019-01-29 | 深圳市大德激光技术有限公司 | The output switching device of ultrafast pulse optical fiber laser |
| CN111474704A (en) * | 2020-03-16 | 2020-07-31 | 哈尔滨新光光电科技股份有限公司 | Light modulator |
-
2018
- 2018-03-28 CN CN201820429138.7U patent/CN208060840U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109286119A (en) * | 2018-09-29 | 2019-01-29 | 深圳市大德激光技术有限公司 | The output switching device of ultrafast pulse optical fiber laser |
| CN109286119B (en) * | 2018-09-29 | 2019-08-30 | 深圳市大德激光技术有限公司 | The output switching device of ultrafast pulse optical fiber laser |
| CN111474704A (en) * | 2020-03-16 | 2020-07-31 | 哈尔滨新光光电科技股份有限公司 | Light modulator |
| CN111474704B (en) * | 2020-03-16 | 2021-10-19 | 哈尔滨新光光电科技股份有限公司 | Light modulator |
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