CN221473857U - Laser processing structure and processing equipment based on voice coil motor - Google Patents

Abstract

The utility model discloses a laser processing structure and processing equipment based on a voice coil motor, and belongs to the technical field of laser processing. The laser processing structure comprises a voice coil motor, a collimating mirror, a connecting joint and a laser; the voice coil motor is provided with an optical through hole, the output end of the voice coil motor is in transmission connection with the collimating mirror so as to drive the collimating mirror to lift, the collimating mirror is inserted into the optical through hole, and the collimating mirror is perpendicular to the axis of the optical through hole; the connecting joint is positioned on the voice coil motor, the laser is inserted into the connecting joint, and the light inlet of the laser is coaxially inserted into the light through hole. According to the laser processing structure based on the voice coil motor, provided by the embodiment of the utility model, the distance between the light emitting position of the laser and the collimating mirror can be greatly shortened, so that the whole structure is more compact, the whole structure is smaller in size, the occupied space is small, and the packaging is convenient.

Description

Laser processing structure and processing equipment based on voice coil motor

Technical Field

The utility model belongs to the technical field of laser processing, and particularly relates to a laser processing structure and processing equipment based on a voice coil motor.

Background

Due to the characteristics of laser welding processing, the control of the focal position of the laser beam in the laser welding process plays an extremely important role in the laser welding processing. The voice coil motor has the advantages of simple structure, high dynamic response speed, no cogging torque, high linearity and the like, and the motion precision of the voice coil motor is 100nm or even higher. Therefore, a voice coil motor is generally used to control the collimator lens to move along the Z direction for focusing.

However, in the existing laser processing structure, the laser and the collimating lens are connected through external connecting pieces, so that the distance between the light emergent position of the whole laser and the collimating lens is larger, and the whole structure is larger in size.

Disclosure of utility model

Aiming at the defects or improvement demands of the prior art, the utility model provides a laser processing structure and processing equipment based on a voice coil motor, which aim to greatly shorten the distance between the light emitting position of a laser and a collimating mirror, so that the whole structure is more compact, the whole structure is smaller in size, the occupied space is small, and the packaging is convenient.

In a first aspect, the utility model provides a laser processing structure based on a voice coil motor, wherein the laser processing structure comprises the voice coil motor, a collimating mirror, a connecting joint and a laser;

The voice coil motor is provided with an optical through hole, the output end of the voice coil motor is in transmission connection with the collimating mirror so as to drive the collimating mirror to lift, the collimating mirror is inserted into the optical through hole, and the collimating mirror is perpendicular to the axis of the optical through hole;

the connecting joint is positioned on the voice coil motor, the laser is inserted into the connecting joint, and the light inlet of the laser is coaxially inserted into the light through hole.

Optionally, a boss is arranged on a side wall of the voice coil motor, the light through hole penetrates through the boss, the connecting joint is sleeved outside the boss, and a light inlet of the laser extends into the voice coil motor.

Optionally, the boss and the connection joint are in threaded engagement.

Optionally, the laser processing structure further includes a protection component, the protection component includes protection mirror and a plurality of photoelectric sensor, the protection mirror is perpendicular and the piston cartridge is in the light through-hole, the protection mirror is located the income light mouth of laser instrument with between the collimating mirror, a plurality of photoelectric sensor is along annular evenly arranging on voice coil motor's the inner peripheral wall, and be located the income light mouth of laser instrument with between the protection mirror.

Optionally, the protection assembly further includes a first mounting block, the first mounting block is inserted into the voice coil motor, the optical through hole penetrates through the first mounting block, and the plurality of photoelectric sensors are uniformly arranged on the inner peripheral wall of the first mounting block along a ring shape.

Optionally, a first temperature sensor is inserted on the first mounting block, and the first temperature sensor is used for detecting the temperature of the first mounting block.

Optionally, the protection assembly further comprises a second installation block, the second installation block is inserted into the voice coil motor, the optical through hole penetrates through the second installation block, and the protection mirror is movably inserted into the second installation block.

Optionally, an extraction bracket is disposed on the second mounting block, the extraction bracket is slidably inserted on the second mounting block, and the sliding direction of the extraction bracket is perpendicular to the axis of the light through hole, and the protection lens is detachably inserted on the extraction bracket.

Optionally, the laser processing structure further comprises an air blowing module, wherein the air blowing module is inserted into the voice coil motor, and the air blowing module is used for blowing air to the collimating mirror.

In a second aspect, the present utility model provides a processing apparatus comprising a voice coil motor based laser processing structure as described in the first aspect.

The above-mentioned improved technical features can be combined with each other as long as they do not collide with each other.

In general, the above technical solutions conceived by the present utility model have the beneficial effects compared with the prior art including:

According to the laser processing structure based on the voice coil motor, provided by the embodiment of the utility model, as the connecting joint is positioned on the voice coil motor, the laser is inserted into the connecting joint, so that the connection between the laser and the voice coil motor is realized through the connecting joint. When laser processing is carried out, laser beams emitted by the laser device are incident on the collimating mirror through the light through holes, and the collimating mirror focuses the laser beams, so that laser processing of products below is realized. Before processing, the collimating mirror is lifted along the Z-axis direction by the voice coil motor to realize focusing of the laser beam.

Further, because the light inlet of the laser is coaxially inserted into the light through hole, and the collimating lens is inserted into the light through hole, at the moment, the light inlet of the laser and the collimating lens are both inserted into the voice coil motor, the distance between the light outlet position of the laser and the collimating lens is greatly shortened, the whole structure is more compact, the whole structure is smaller in size, the occupied space is small, and the packaging is convenient.

That is, according to the laser processing structure based on the voice coil motor, the distance between the light emitting position of the laser and the collimating mirror can be greatly shortened, so that the whole structure is more compact, the whole structure is smaller in size, small in occupied space and convenient to package.

Drawings

Fig. 1 is a schematic structural diagram of a laser processing structure based on a voice coil motor according to an embodiment of the present utility model;

FIG. 2 is a first partial enlarged view of FIG. 1;

FIG. 3 is a second partial enlarged view of FIG. 1;

Fig. 4 is a schematic structural diagram of a processing apparatus according to an embodiment of the present utility model.

Like reference numerals denote like technical features throughout the drawings, in particular:

1. A voice coil motor; 11. an optical through hole; 12. a boss; 13. a connecting bracket; 2. a collimator lens; 3. a connection joint; 4. a laser; 5. a protection component; 51. a protective mirror; 52. a photoelectric sensor; 53. a first mounting block; 54. a first temperature sensor; 55. a second mounting block; 551. extracting the bracket; 56. a second temperature sensor; 6. a blowing module; 10. laser processing the structure; 100. a field lens; 200. a numerical control unit; 300. a coaxial ranging module; 400. an air blowing mechanism; 500. an indication device; 600. a CCD camera module; 700. a mirror module.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model. In addition, the technical features of the embodiments of the present utility model described below may be combined with each other as long as they do not collide with each other.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

Examples:

Fig. 1 is a schematic structural diagram of a laser processing structure based on a voice coil motor according to an embodiment of the present utility model, and as shown in fig. 1, the laser processing structure 10 includes a voice coil motor 1, a collimator lens 2, a connection joint 3 and a laser 4.

The voice coil motor 1 is provided with an optical through hole 11, the output end of the voice coil motor 1 is in transmission connection with the collimating mirror 2 to drive the collimating mirror 2 to lift, the collimating mirror 2 is inserted into the optical through hole 11, and the axis of the collimating mirror 2 is perpendicular to the axis of the optical through hole 11.

The connection joint 3 is positioned on the voice coil motor 1, the laser 4 is inserted into the connection joint 3, and the light inlet of the laser 4 is coaxially inserted into the light through hole 11.

With the laser processing structure based on the voice coil motor provided by the embodiment of the utility model, as the connecting joint 3 is positioned on the voice coil motor 1, the laser 4 is inserted into the connecting joint 3, so that the connection between the laser 4 and the voice coil motor 1 is realized through the connecting joint 3. When laser processing is performed, the laser beam emitted by the laser 4 is incident on the collimating mirror 2 through the through hole 11, and the collimating mirror 2 focuses the laser beam, so that laser processing of an underlying product is realized. Before processing, the collimating mirror 2 is lifted and lowered along the Z-axis direction by the voice coil motor 1 to realize focusing of the laser beam.

Further, since the light inlet of the laser 4 is coaxially inserted into the light through hole 11 and the collimating mirror 2 is inserted into the light through hole 11, at this time, the light inlet of the laser 4 and the collimating mirror 2 are both inserted into the voice coil motor 1, so that the distance between the light outlet position of the laser 4 and the interval between the collimating mirror 2 is greatly shortened, the whole structure is more compact, the whole structure is smaller in size, the occupied space is small, and the packaging is convenient.

That is, according to the laser processing structure based on the voice coil motor provided by the embodiment of the utility model, the distance between the light emitting position of the laser 4 and the collimating mirror 2 can be greatly shortened, so that the whole structure is more compact, the whole structure is smaller in size, the occupied space is small, and the packaging is convenient.

In this embodiment, the diameter of the optical through-hole 11 may be 25-40mm, and the laser beam may be sufficiently passed through with a margin left for adjustment. Preferably, the diameter of the through-hole 11 is 29mm.

The connection joint 3 may be a QBH joint, for example.

With continued reference to fig. 1, the side wall of the voice coil motor 1 is provided with a boss 12, the optical through hole 11 penetrates through the boss 12, the connecting joint 3 is sleeved outside the boss 12, and the light inlet of the laser 4 extends into the voice coil motor 1.

In the above embodiment, the boss 12 can realize positioning of the connection joint 3, facilitating connection of the connection joint 3 and the voice coil motor 1.

Further, the boss 12 is in threaded fit with the connecting joint 3, so that the connecting strength of the connecting joint 3 and the voice coil motor 1 is increased, and the connecting joint 3 and the laser 4 are prevented from falling off.

It will be readily appreciated that in other embodiments of the utility model, the boss 12 and the connection fitting 3 may also be connected by bolts, as the utility model is not limited in this regard.

Fig. 2 is a first partial enlarged view of fig. 1, fig. 3 is a second partial enlarged view of fig. 1, and, as shown in conjunction with fig. 2 and 3, the laser processing structure further includes a protection component 5, the protection component 5 includes a protection mirror 51 and a plurality of photoelectric sensors 52, the protection mirror 51 is vertically and movably inserted in the optical through hole 11, the protection mirror 51 is located between the light inlet of the laser 4 and the collimator 2, and the plurality of photoelectric sensors 52 are uniformly arranged on the inner peripheral wall of the voice coil motor 1 along a ring shape and located between the light inlet of the laser 4 and the protection mirror 51.

In the above embodiment, the protection mirror 51 plays a role of shielding protection for the collimator lens 2, and prevents impurities from directly contaminating the collimator lens 2. The photoelectric sensor 52 can check the protective mirror 51 in real time so as to be convenient for replacement in time.

Illustratively, the photoelectric sensor 52 detects the protective mirror 51 in real time during the welding process, when the surface of the protective mirror 51 is stained, the laser beam can generate diffuse reflection after irradiation, and the photoelectric sensor 52 near the protective mirror 51 reminds an operator to replace the protective mirror 51 after detecting the reflected light, so that welding spatter and damage of dust to the internal collimating mirror 2 are avoided.

In the present embodiment, the protection assembly 5 further includes a first mounting block 53, the first mounting block 53 being inserted into the voice coil motor 1, the light through hole 11 penetrating the first mounting block 53, and the plurality of photosensors 52 being uniformly arranged on an inner peripheral wall of the first mounting block 53 in a ring shape.

In the above embodiment, the first mounting block 53 plays a role of supporting and positioning the photoelectric sensor 52.

Illustratively, the first mounting block 53 may include two interconnected mounting blocks.

Further, a first temperature sensor 54 is inserted on the first mounting block 53, and the first temperature sensor 54 is used for detecting the temperature of the first mounting block 53. The first temperature sensor 54 detects the temperature of the first mounting block 53 in real time during the processing process, and can perform human intervention or stop the processing when the temperature fluctuation is large, thereby preventing serious damage.

With continued reference to fig. 3, the protection assembly 5 further includes a second mounting block 55, the second mounting block 55 is inserted into the voice coil motor 1, the optical through hole 11 penetrates through the second mounting block 55, and the protection mirror 51 is movably inserted into the second mounting block 55.

In the above embodiment, the second mounting block 55 can play a role in supporting and positioning the protection mirror 51, so as to facilitate replacement of the protection mirror 51.

Further, an extraction bracket 551 is provided on the second mounting block 55, the extraction bracket 551 is slidably inserted on the second mounting block 55, and the sliding direction of the extraction bracket 551 is perpendicular to the axis of the light through hole 11, and the protection mirror 51 is detachably inserted on the extraction bracket 551.

It is easy to understand that the sliding of the extraction bracket 551 can realize the convenient sliding of the protection mirror 51, so that the protection mirror 51 is removed from the light through hole 11 and then is conveniently removed from the extraction bracket 551 for replacement.

Similarly, a second temperature sensor 56 is inserted into the second mounting block 55, and the second temperature sensor 56 is used for detecting the temperature of the second mounting block 55. The second temperature sensor 56 detects the temperature of the second mounting block 55 in real time during the processing process, and can perform human intervention or stop the processing when the temperature fluctuation is large, thereby preventing serious damage.

In this embodiment, the laser processing structure further includes an air blowing module 6, the air blowing module 6 is inserted into the voice coil motor 1, and the air blowing module 6 is used for blowing air to the collimator lens 2.

In the above embodiment, the blowing module 6 may block the spatter and dust of the welding to keep the collimator lens 2 clean.

Illustratively, the voice coil motor 1 also has a connection bracket 13 at the bottom, and connection with other components is facilitated by the connection bracket 13.

Fig. 4 is a schematic structural diagram of a processing device according to an embodiment of the present utility model, and as shown in fig. 4, the processing device includes a laser processing structure based on a voice coil motor as described above.

Specifically, the processing apparatus further includes a field lens 100, a numerical control unit 200, a coaxial ranging module 300, a blowing mechanism 400, an indicating device 500, a CCD camera module 600, and a mirror module 700. The laser processing structure 10 is disposed at the left side of the numerical control unit 200 and connected with the lower reflector module 700, and the CCD camera module 600 is disposed at the left side of the reflector module 700 and connected with the left lower coaxial ranging module 300, so as to keep the high-precision coaxial ranging module 300 connected coaxially with the optical path. The field lens 100 is located below the numerical control unit 200, the indicating device 500 is located on the right side below the numerical control unit 200, the indicating device 500 and the field lens 100 are kept longitudinally parallel, the blowing mechanism 400 is connected below the left side of the field lens 100 through a bracket, and the blowing range is kept to cover the working range of the field lens 100.

Illustratively, during the operation of the scanning head, the CCD camera module 600 scans the surface of the workpiece to be processed first, assists the high-precision coaxial ranging module 300 in obtaining basic features and accurate distance information of the workpiece to be processed, and then transmits the obtained data to the nc unit 200, and the nc unit 200 finds an optimal control method and control path according to the obtained data. In addition, the laser beam emitted from the laser 4 passes through the collimator lens 2, is reflected by the mirror module 700 a plurality of times, and is emitted through the field lens 100.

The laser processing structure can be applied to processing equipment such as a brazing head, a laser cleaning head or a swinging head, besides the scanning galvanometer, and the laser processing structure has wide applicability and is not limited in the utility model.

The embodiment of the utility model provides a laser processing structure and processing equipment based on a voice coil motor, which have the following technical effects:

1. The focusing precision and response speed are improved. The laser processing structure combines the characteristics of high precision and quick response of the voice coil motor 1, and can quickly respond to weld information in the laser processing process and adjust the position of the collimating mirror 2 with high precision, so that the function of quick and accurate focusing is realized, the average precision can be improved by 40% -50%, and the average response speed can be improved by 20% -30%, so that the average response speed can be more than 1 ms.

2. The whole structure is more compact. The light inlet of the laser 4 is coaxially inserted into the light through hole 11, the collimating mirror 2 is inserted into the light through hole 11, at the moment, the light inlet of the laser 4 and the collimating mirror 2 are both inserted into the voice coil motor 1, the distance between the light outlet position of the laser 4 and the collimating mirror 2 is greatly shortened, the whole structure is more compact, the whole structure is smaller in size, the occupied space is small, and the packaging is convenient.

3. The safety of the equipment is improved. This laser beam machining structure has increased protection mirror 51 and extraction support 551 and is provided with temperature sensor and module 6 of blowing, can remind the staff to carry out quick replacement to protection mirror 51 after protection mirror 51 is stained, and temperature sensor then detects the inside temperature of equipment in the course of working, avoids secondary damage. The air blowing module 6 can blow and radiate the collimating mirror 2 during welding, so that the effect of the collimating mirror 2 is reduced due to heat generated by long-time laser irradiation, and the quality of the laser beam is further influenced.

It will be readily appreciated by those skilled in the art that the foregoing description is merely a preferred embodiment of the utility model and is not intended to limit the utility model, but any modifications, equivalents, improvements or alternatives falling within the spirit and principles of the utility model are intended to be included within the scope of the utility model.

Claims (10)

1. The laser processing structure based on the voice coil motor is characterized by comprising the voice coil motor (1), a collimating mirror (2), a connecting joint (3) and a laser (4);

The voice coil motor (1) is internally provided with an optical through hole (11), the output end of the voice coil motor (1) is in transmission connection with the collimating mirror (2) so as to drive the collimating mirror (2) to lift, the collimating mirror (2) is inserted into the optical through hole (11), and the collimating mirror (2) is perpendicular to the axis of the optical through hole (11);

The connecting joint (3) is positioned on the voice coil motor (1), the laser (4) is inserted into the connecting joint (3), and the light inlet of the laser (4) is coaxially inserted into the light through hole (11).

2. The laser processing structure based on the voice coil motor according to claim 1, wherein a boss (12) is arranged on a side wall of the voice coil motor (1), the optical through hole (11) penetrates through the boss (12), the connecting joint (3) is sleeved outside the boss (12), and the light inlet of the laser (4) extends into the voice coil motor (1).

3. A voice coil motor based laser machining structure according to claim 2, characterized in that the boss (12) and the connection joint (3) are screw-fitted.

4. The voice coil motor-based laser processing structure according to claim 1, further comprising a protection assembly (5), wherein the protection assembly (5) comprises a protection mirror (51) and a plurality of photoelectric sensors (52), the protection mirror (51) is vertically and movably inserted in the optical through hole (11), the protection mirror (51) is located between the light inlet of the laser (4) and the collimating mirror (2), and the plurality of photoelectric sensors (52) are uniformly arranged on the inner peripheral wall of the voice coil motor (1) along a ring shape and are located between the light inlet of the laser (4) and the protection mirror (51).

5. The voice coil motor-based laser processing structure according to claim 4, wherein the protection assembly (5) further comprises a first mounting block (53), the first mounting block (53) is inserted into the voice coil motor (1), the optical through hole (11) penetrates through the first mounting block (53), and the plurality of photoelectric sensors (52) are uniformly arranged on the inner peripheral wall of the first mounting block (53) along a ring shape.

6. The voice coil motor-based laser processing structure according to claim 5, wherein a first temperature sensor (54) is inserted on the first mounting block (53), and the first temperature sensor (54) is configured to detect a temperature of the first mounting block (53).

7. The voice coil motor-based laser processing structure according to claim 4, wherein the protection assembly (5) further comprises a second mounting block (55), the second mounting block (55) is inserted into the voice coil motor (1), the optical through hole (11) penetrates through the second mounting block (55), and the protection mirror (51) is movably inserted into the second mounting block (55).

8. The voice coil motor-based laser processing structure according to claim 7, wherein an extraction bracket (551) is provided on the second mounting block (55), the extraction bracket (551) is slidably inserted on the second mounting block (55), and the sliding direction of the extraction bracket (551) is perpendicular to the axis of the optical through hole (11), and the protection mirror (51) is detachably inserted on the extraction bracket (551).

9. A voice coil motor based laser processing structure according to any one of claims 1-8, further comprising an air blowing module (6), the air blowing module (6) being inserted into the voice coil motor (1), the air blowing module (6) being for blowing air to the collimator mirror (2).

10. A processing apparatus comprising a voice coil motor based laser processing structure as claimed in any one of claims 1 to 9.