CN208728908U - A kind of device measuring laser Machining head defocusing amount - Google Patents
A kind of device measuring laser Machining head defocusing amount Download PDFInfo
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- CN208728908U CN208728908U CN201821313020.4U CN201821313020U CN208728908U CN 208728908 U CN208728908 U CN 208728908U CN 201821313020 U CN201821313020 U CN 201821313020U CN 208728908 U CN208728908 U CN 208728908U
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- scale
- defocusing amount
- machining head
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Abstract
The utility model discloses a kind of devices for measuring laser Machining head defocusing amount, including scale, the scale clamping piece for the lateral wall for being adapted to be mounted to laser Machining head and detection device for detecting each point defocusing amount on work pieces process face, indicate scale on the scale；The upper end of scale is slidably connected to scale clamping piece, and detection device is slidably connected to the lower end of scale；The surface of scale clamping piece is equipped with first and reads reference line, and detection device is equipped with second close to the side of scale and reads reference line；The lower end of detection device is equipped with the highly sensitive contact for contacting with workpiece to be machined surface.The device of the measurement laser Machining head defocusing amount can quick defocusing amount needed for positioning process, be conducive to improve location efficiency, simplify operation, reduce error, and can also verify the defocusing amount of each point on work pieces process track.
Description
Technical field
The utility model relates to technical field of laser processing, more particularly to a kind of dress for measuring laser Machining head defocusing amount
It sets.
Background technique
With the development of superpower laser, laser processing technology is in industrial circle using more and more extensive.In laser
In processing technology, defocusing amount refers to distance of the laser beam foucing apart from workpiece to be machined surface, is to influence laser processing quality
One important parameter index, if defocusing amount is excessive, the power density acted on workpiece is too low, and processing effect is not achieved；Such as from
Coke amount is too small, and the power density acted on workpiece is excessively high, is easy fusing illuminated laser spot and destroys workpiece surface, laser spot
The power density highest for locating spot center is easy even to evaporate pore-forming in workpiece surface burning, leaves each plane of laser spot
On, power density distribution is relatively uniform, therefore, precisely determines defocusing amount and work pieces process face is made to be always positioned at the position to workpiece
Processing effect it is extremely important.
When carrying out the dry run after the completion of laser processing programming, learning from instruction, and programming, requires measurement and test
Whether the defocusing amount of each point meets technological parameter on card work pieces process track.Currently, the measurement of defocusing amount generallys use height
Ruler measurement, specially first moves to laser head above workpiece, measures it to each key point of workpiece and type face transition point with height gauge
Distance, correct defocusing amount, not only troublesome in poeration, low efficiency, but also error is larger, this measurement method further according to measurement result
It is also subject to processing being affected for space, workpiece shapes and laser head angle, can not be surveyed even for complicated workpiece height ruler
Its fixed defocusing amount.
Utility model content
To solve the above-mentioned problems, the utility model provides a kind of device for measuring laser Machining head defocusing amount, energy
Defocusing amount needed for enough quick positioning process is conducive to improve location efficiency, simplifies operation, reduces error, and can also verify
The defocusing amount of each point on work pieces process track.
Based on this, the utility model provide it is a kind of measure laser Machining head defocusing amount device, including scale, be suitable for peace
The scale clamping piece of lateral wall loaded on laser Machining head and detection device for detecting each point defocusing amount on work pieces process face,
Scale is indicated on the scale；
The upper end of the scale is slidably connected to the scale clamping piece, and the detection device is slidably connected to the scale
Lower end；The surface of the scale clamping piece is equipped with first and reads reference line, and the detection device is close to the side of the scale
Reference line is read equipped with second；
The lower end of the detection device is equipped with the highly sensitive contact for contacting with workpiece to be machined surface.
Preferably, the detection device include the bracket for being slidably connected to the scale lower end, be installed on it is described
Probing pen on bracket and the warning device being connect with the highly sensitive contact；The high sensitivity contact is set to the detection
End；Described second, which reads reference line, is set on the bracket.
Preferably, the bracket is vertically arranged with the scale, and the high sensitivity contact is located at laser processing
Hair goes out on the axial line of laser beam.
Preferably, the circuit of the warning device has normally opened and normally closed both of which.
Preferably, the warning device includes buzzer and LED light on the Probing pen.
Preferably, the side of the scale clamping piece is equipped with the first locking member, and the detection device is close to described
The side of scale is equipped with the second locking member.
Preferably, first locking member and second locking member are lock-screw.
Preferably, the scale is cylindrical type.
Compared to the prior art, the utility model has the beneficial effects that:
The device of measurement laser Machining head defocusing amount provided by the utility model, is made by the cooperation of scale and detection device
With first adjusting scale 30 makes first of 0 alignment scale clamping piece of scale, 20 surface on scale 30 to read reference line 21, then slides
Detection device 40 makes the scale corresponding with focal length of 411 alignment scale of the second reading reference line, 30 lower end, so that highly sensitive
Contact 43 is exactly on focal position, the defocusing amount needed for finally requiring further according to technique, and the upper end of regulation scale 30 makes the
One reads the numerical value of the defocusing amount on 21 alignment scale of reference line, 30 scale.So, it is possible it is quick, intuitive, accurately determine work
The corresponding position of defocusing amount needed for part processing technology, so that the precision for reducing error, improving technique, improves working efficiency.
Moreover, each point on detection verifying work pieces process track can also be continued by the highly sensitive contact being arranged in detection device
Defocusing amount to ensure defocusing amount needed for work pieces process face remains processing technology, and then can ensure that the precision of processing technology.
Detailed description of the invention
Fig. 1 is a kind of structural representation of device for measuring laser Machining head defocusing amount provided by the embodiment of the utility model
Figure；
Fig. 2 is a kind of structural representation of device for measuring laser Machining head defocusing amount provided by the embodiment of the utility model
Figure.
Wherein, 10, laser Machining head；11, condenser lens；20, scale clamping piece；21, first reference line is read；22,
One locking member；30, scale；40, detection device；41, bracket；411, second reference line is read；42, Probing pen；43, highly sensitive
Contact；44, the second locking member；H, second read reference line with high sensitivity contact in the vertical direction at a distance from；L, laser adds
The focal length of foreman's discovery laser beam.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiment of the present utility model is described in further detail.Below
Embodiment is not intended to limit the scope of the present invention for illustrating the utility model.
In the description of the present invention, it should be noted that term " center ", " longitudinal direction ", " transverse direction ", "upper", "lower",
The orientation or positional relationship of the instructions such as "left", "right", "vertical", "horizontal" is to be based on the orientation or positional relationship shown in the drawings,
It is merely for convenience of describing the present invention and simplifying the description, rather than the device or element of indication or suggestion meaning must have
Specific orientation is constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.In addition, term
" first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
Referring to Figure 1 and Fig. 2, it is schematically shown that the device of the measurement laser Machining head defocusing amount of the utility model,
Including scale 30, scale clamping piece 20 and detection device 40.Wherein, the lateral wall of laser Machining head 10 is equipped with mounting hole, mark
Ruler clamping piece 20 is installed on the lateral wall of laser Machining head 10 by mounting hole, and the upper end of scale 30 is slidably coupled to scale
On clamping piece 20, detection device 40 is slidably coupled to the lower end of scale 30.Importantly, indicating scale on scale 30, mark
The surface of ruler clamping piece 20 is equipped with first and reads reference line 21, and detection device 40 is equipped with second close to the side of scale 30 and reads base
Directrix 411, detection device 40 is for detecting each point defocusing amount on work pieces process face, and the lower end of detection device 40 is equipped with Gao Ling
Sensitivity contact 43, the high sensitivity contact 43 with workpiece to be machined surface for contacting.Preferably, for convenient for adjusting scale
30 and detection device 40 position after, fixing them prevents from loosening, the side of scale clamping piece 20 be equipped with the first locking member 22,
Detection device 40 is equipped with the second locking member 44 close to the side of scale 30.
The device of measurement laser Machining head defocusing amount based on above-mentioned technical characteristic, is installed on laser for scale clamping piece 20
On the lateral wall of processing head 10, specifically, as shown in Figure 1, it is assumed that second in detection device 40 reads reference line 411 and be set to
The distance of the highly sensitive contact 43 of 40 lower end of detection device in the vertical direction is H, and when design can clamp by adjusting scale
Installation site of the part 20 on 10 lateral wall of laser Machining head makes first on scale clamping piece 20 to read reference line 21 and laser
The center of condenser lens 11 in processing head 10 is equal to above-mentioned H in the distance of vertical direction, so that first reads reference line
21 read reference line 411 at a distance from vertical direction equal to the center of condenser lens 11 and set on 40 lower end of detection device with second
Highly sensitive contact 43 vertical direction distance.
When the defocusing amount needed for technique to be determined, the upper end of scale 30 is adjusted first, is directed at the scale 0 on scale 30
The first of 20 surface of scale clamping piece reads reference line 21, then locks scale 30 by the first locking member 22, then opens
Laser indicates feux rouges, and the position for adjusting highly sensitive contact 43 is located on the axial line of instruction red light, to guarantee to examine
Survey device 40 and the laser beam that laser Machining head 10 issues are coaxial, it is assumed that the laser Machining head 10 in this example finds the coke of laser beam
It is L away from (distance at the center of condenser lens 11 to its focus), then slides up and down the detection being slidably connected with the lower end of scale 30
Device 40 makes second in detection device 40 to read under 411 alignment scale 30 of reference line to adjust its position on scale 30
The scale L (such as at 110 graduation positions shown in Fig. 1) at end first reads reference line 21 and the second reading benchmark at this time
Line 411 is equal to L in the distance of vertical direction, in this way, the highly sensitive contact 43 of 40 lower end of detection device can be made to be exactly in
On focal position, the second locking member 44 is then locked, device 40 is will test and the relative position of scale 30 is fixed up, turn off sharp
Light device indicates feux rouges.Then, according to the technological requirements needed for defocusing amount, the upper end of regulation scale 30 makes the first reading reference line
The numerical value (positive out of focus as shown in Figure 2 or negative defocus) of defocusing amount on 21 alignment scale, 30 scale, then locks first
Locking member 22, with the position of nonadjustable signal 30, at this moment where the highly sensitive contact 43 of 40 lower end of detection device and laser spot
The machined surface of workpieces processing is moved to and highly sensitive contact 43 by the defocusing amount that the distance of position, as technique require later
The position of contact can ensure that the defocusing amount of the machined surface of workpiece meets processing technology needs.Highly sensitive contact 43 is for holding
Whether continuous detection machined surface contacts, and to ensure whether the defocusing amount of machined surface meets processing technology needs always, occurs
It is corrected in time when deviation, to guarantee the precision of processing technology.
Specifically, detection device 40 includes being slidably connected to the bracket 41 of 30 lower end of scale, the spy being installed on bracket 41
The warning device (not shown) surveying pen 42 and connecting with highly sensitive contact 43, highly sensitive contact 43 are set to Probing pen 42
End, second read reference line 411 be set to bracket 41 on.Preferably, bracket 41 is vertically arranged with scale 30, high sensitivity touching
Point 43 is located at laser Machining head 10 and issues on the axial line of laser beam.It is further preferred that the circuit of warning device is with normally opened
With normally closed both of which.In this way, during programming or teaching, by the way that control system is manually operated, by highly sensitive contact
43 respectively with the key point or type face transition point contact on the machined surface of workpieces processing, each on workpieces processing machined surface to adjust
The defocusing amount of point, is adjusted to always-on for the circuit of warning device, when the machined surface of workpieces processing touches highly sensitive contact
When 43, highly sensitive contact switch closure, the circuit forming circuit of warning device, warning device sending alarm signal, table
Show that the defocusing amount of the machined surface of workpieces processing at this time meets technique requirement, continuous automatic processing operation can be carried out.Process operation
When beginning, highly sensitive contact 43 and the machined surface of workpieces processing are in contact condition, the circuit of warning device are adjusted to normally closed
Mode, the circuit of warning device disconnects at this time, and alarm signal disappears；In process, such as the machined surface of workpieces processing and height
Sensitivity contact 43 is separated from, and highly sensitive contact switch closure, warning device issues alarm signal, indicates that workpieces processing is being reported
There are deviations for the defocusing amount of alert position, need operator's teaching or programming again here, to adjust defocusing amount herein, with
Ensure that its defocusing amount meets process requirement always, avoid the occurrence of error, so that it is guaranteed that machining accuracy.
As preferred embodiment, warning device include buzzer (not shown) on the Probing pen 42 and
LED light (not shown), the alarm signal that warning device issues includes buzzing prompting sound and LED blinking light；First
Locking member 22 and the second locking member 44 are lock-screw, and lock-screw need to be only tightened when needing to lock, and locking is facilitated to grasp
Make.Preferably, scale 30 is cylindrical type, in order to be slidably connected with scale clamping piece 20 and bracket 41.
In conclusion the device of measurement laser Machining head defocusing amount provided by the utility model, it can quick positioning process institute
The defocusing amount needed is conducive to improve location efficiency, simplifies operation, reduces error, and by highly sensitive contact, can also verify
The defocusing amount of each point on work pieces process track, application prospect with higher.
The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art
For art personnel, without deviating from the technical principle of the utility model, several improvement and replacement can also be made, these change
It also should be regarded as the protection scope of the utility model into replacement.
Claims (8)
1. a kind of device for measuring laser Machining head defocusing amount, which is characterized in that including scale, be adapted to be mounted to laser Machining head
Lateral wall scale clamping piece and detection device for detecting each point defocusing amount on work pieces process face, indicate on the scale
Scale；
The upper end of the scale is slidably connected to the scale clamping piece, and the detection device is slidably connected under the scale
End；The surface of the scale clamping piece is equipped with first and reads reference line, and the detection device is equipped with close to the side of the scale
Second reads reference line；
The lower end of the detection device is equipped with the highly sensitive contact for contacting with workpiece to be machined surface.
2. the device of measurement laser Machining head defocusing amount according to claim 1, which is characterized in that the detection device packet
It includes and is slidably connected to the bracket of the scale lower end, the Probing pen being installed on the bracket and connects with the highly sensitive contact
The warning device connect；The high sensitivity contact is set to the Probing pen end；Described second, which reads reference line, is set to the branch
On frame.
3. it is according to claim 2 measurement laser Machining head defocusing amount device, which is characterized in that the bracket with it is described
Scale is vertically arranged, and the high sensitivity contact is located at laser Machining head and issues on the axial line of laser beam.
4. the device of measurement laser Machining head defocusing amount according to claim 2, which is characterized in that the warning device
Circuit has normally opened and normally closed both of which.
5. the device of measurement laser Machining head defocusing amount according to claim 2, which is characterized in that the warning device packet
Include the buzzer being set on the Probing pen and LED light.
6. the device of measurement laser Machining head defocusing amount according to claim 1, which is characterized in that the scale clamping piece
Side be equipped with the first locking member, the detection device close to the side of the scale be equipped with the second locking member.
7. the device of measurement laser Machining head defocusing amount according to claim 6, which is characterized in that first locking member
It is lock-screw with second locking member.
8. the device of measurement laser Machining head defocusing amount according to claim 1, which is characterized in that the scale is cylinder
Type.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821313020.4U CN208728908U (en) | 2018-08-15 | 2018-08-15 | A kind of device measuring laser Machining head defocusing amount |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821313020.4U CN208728908U (en) | 2018-08-15 | 2018-08-15 | A kind of device measuring laser Machining head defocusing amount |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110747468A (en) * | 2019-12-03 | 2020-02-04 | 浙江工业大学 | Coaxial type foldable laser cladding focusing and defocusing amount adjusting device |
| CN114871604A (en) * | 2022-05-26 | 2022-08-09 | 洛阳科品实业有限公司 | Special clamp for laser welding head and leveling and defocusing measuring method |
-
2018
- 2018-08-15 CN CN201821313020.4U patent/CN208728908U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110747468A (en) * | 2019-12-03 | 2020-02-04 | 浙江工业大学 | Coaxial type foldable laser cladding focusing and defocusing amount adjusting device |
| CN110747468B (en) * | 2019-12-03 | 2024-03-26 | 浙江工业大学 | Coaxial type foldable laser cladding focusing and defocusing amount adjusting device |
| CN114871604A (en) * | 2022-05-26 | 2022-08-09 | 洛阳科品实业有限公司 | Special clamp for laser welding head and leveling and defocusing measuring method |
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