CN220635639U - Laser cleaning pen for processing welding line - Google Patents

Abstract

The utility model discloses a laser cleaning pen for processing welding seams, which relates to the technical field of laser cleaning and comprises a pen body, a light path adjusting component, a deflection prism component and a control motor. The pen body is internally provided with a light path channel, and two ends of the pen body are communicated with the light path channel and respectively used as an incident end and an emergent end; the light path adjusting component is arranged in the light path channel and is positioned between the incident end and the emergent end; the deflection prism component is arranged in the cavity of the pen body and is positioned between the light path adjusting component and the emergent end; the control motor and the light path channel are coaxially arranged, a through hole is formed in the central shaft of the control motor, the control motor is in transmission connection with the deflection prism assembly, and the deflection prism assembly can be driven to rotate around the axis of the light path channel. The laser cleaning pen for processing the welding line has the advantages of compact overall structure, small volume and convenience in operation in a small space.

Description

Laser cleaning pen for processing welding line

Technical Field

The utility model relates to the technical field of laser cleaning, in particular to a laser cleaning pen for processing welding seams.

Background

After the metal is welded, a layer of oxide skin is attached to the surface of the welding seam, impurities are entrained in the oxide skin, and the compactness is low, so that the oxide skin is required to be cleaned and removed, and the quality and the strength of welding are ensured. Traditional clearance is through chemical agent washing, or adopts the mode of mechanical polishing, and both modes can cause the damage of weldment different degree. Laser cleaning has the characteristics of no grinding, no contact, no thermal effect, suitability for objects of various materials and the like, and is considered to be the most reliable and effective solution.

When cleaning with a laser, the laser needs to be converted from a point to a range scan. The light path can be changed by using a grating galvanometer mode to obtain laser of range scanning, but the control structure of the grating galvanometer is large in size, so that the whole laser cleaning device is bulky and cannot enter a small space for operation.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the laser cleaning pen for processing the welding line is compact in overall structure, small in size and convenient to operate in a small space.

According to an embodiment of the utility model, a laser cleaning pen for processing a weld joint includes: the pen comprises a pen body, wherein an optical path channel is arranged in the pen body, and two ends of the pen body are communicated with the optical path channel and serve as an incident end and an emergent end respectively;

the light path adjusting component is arranged in the light path channel and is positioned between the incident end and the emergent end;

the deflection prism assembly is arranged in the cavity of the pen body and is positioned between the light path adjusting assembly and the emergent end;

the control motor is coaxially arranged with the light path channel, a through hole is formed in the central shaft of the control motor, the control motor is in transmission connection with the deflection prism assembly, and the deflection prism assembly can be driven to rotate around the axis of the light path channel.

The laser cleaning pen for processing the welding line has at least the following beneficial effects: the incident end of the pen body is used for being connected with an optical fiber, laser passes through the optical path adjusting component to optimize an optical path, the deflection prism component can deflect the optical path by a certain angle, and when the motor is controlled to drive the deflection prism component to rotate, the deflected optical path can form an annular scanning path; the control motor and the deflection prism component are coaxially arranged for transmission, so that occupation in the radial direction is reduced, the transmission structure is more compact, the size of the pen body can be correspondingly reduced, and laser cleaning of welding seams in a small space is facilitated.

According to some embodiments of the utility model, the optical path adjusting component comprises a beam expanding lens group and a focusing lens, and the beam expanding lens group and the focusing lens are sequentially arranged along the optical path transmission direction.

According to some embodiments of the utility model, the deflection prism assembly comprises a sleeve, a wedge prism and a first snap ring, wherein a bottom plate is arranged at one end of the sleeve, an avoidance hole is formed in the center of the bottom plate, the other end of the sleeve is open, the wedge prism is installed in the sleeve, the first snap ring is arranged in the sleeve, and the wedge prism is clamped between the bottom plate and the first snap ring.

According to some embodiments of the utility model, a second clamping ring is arranged in the sleeve, the second clamping ring is in threaded fit with the inner wall of the sleeve, and the second clamping ring is abutted with the first clamping ring.

According to some embodiments of the utility model, a first adjusting groove is formed in an end face, away from the first clamping ring, of the second clamping ring.

According to some embodiments of the utility model, a supporting ring table is arranged at one end, close to the wedge prism, of the inner wall of the first clamping ring, a protecting mirror and a third clamping ring are arranged in the first clamping ring, the protecting mirror is abutted against the supporting ring table by the third clamping ring, and the third clamping ring is in threaded fit with the inner wall of the first clamping ring.

According to some embodiments of the utility model, a second adjusting groove is formed in the end face, away from the protective mirror, of the third clamping ring.

According to some embodiments of the utility model, the control motor is arranged at one end of the sleeve, which is provided with a bottom plate, an output shaft of the control motor is connected with a rotary disc, a through hole coaxial with the avoidance hole is formed in the rotary disc, and the rotary disc is pressed against the end face of the sleeve.

According to some embodiments of the utility model, the exit end is provided with a guiding component, the guiding component is connected to the pen body, and one end of the guiding component, which is far away from the pen body, is provided with a guiding surface.

According to some embodiments of the utility model, a button is provided on the outside of the pen body, the button being electrically connected to the control motor.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The utility model is further described with reference to the accompanying drawings and examples, in which:

FIG. 1 is a schematic cross-sectional view of a laser cleaning pen for treating welds according to an embodiment of the present utility model;

FIG. 2 is a schematic diagram of the structure of a beam expander set according to an embodiment of the present utility model;

FIG. 3 is a schematic view of the structure of a wedge prism according to an embodiment of the present utility model;

FIG. 4 is a schematic view of a deflection prism assembly according to an embodiment of the present utility model;

fig. 5 is a schematic structural diagram of the sleeve and each snap ring according to an embodiment of the present utility model.

Reference numerals:

the pen comprises a pen body 100, an incident end 110, an emergent end 120, an optical path adjusting assembly 200, a beam expanding lens group 210, a focusing lens 220, a deflection prism assembly 300, a sleeve 310, a wedge prism 320, a first clamping ring 330, a second clamping ring 340, a first adjusting groove 341, a protective lens 350, a third clamping ring 360, a control motor 400 and a guide assembly 500.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

In the description of the present utility model, it should be understood that the direction or positional relationship indicated with respect to the description of the orientation, such as up, down, etc., is based on the direction or positional relationship shown in the drawings, is merely for convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the apparatus or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, plural means two or more. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present utility model, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present utility model can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.

Referring to fig. 1, a laser cleaning pen for treating a welding line according to an embodiment of the present utility model includes a pen body 100, an optical path adjusting assembly 200, a deflection prism assembly 300, and a control motor 400.

The pen body 100 is internally provided with a light path channel, and two ends of the pen body 100 are communicated with the light path channel and respectively serve as an incident end 110 and an emergent end 120;

the light path adjusting component 200 is disposed in the light path channel and between the incident end 110 and the exit end 120;

the deflection prism assembly 300 is disposed in the chamber of the pen body 100, and the deflection prism assembly 300 is located between the light path adjustment assembly 200 and the exit end 120;

the control motor 400 is coaxially arranged with the light path channel, a central shaft of the control motor 400 is provided with a through hole, the control motor 400 is in transmission connection with the deflection prism assembly 300, and the deflection prism assembly 300 can be driven to rotate around the axis of the light path channel.

The external optical fiber is used for being connected to the incident end 110, the optical path enters the pen body 100 from the incident end 110, and after being adjusted and changed by the optical path adjusting component 200 and the deflection prism component 300, the optical path is emitted to the surface of the welding seam to be processed from the emergent end 120. The interface of the incident end 110 may be a QCS type interface, which is suitable for a pulse laser.

The laser light is used to adjust the collimation of the light beam and change the spot size as it passes through the light path adjustment assembly 200, and then focused. Next, the adjusted laser beam passes through the deflection prism assembly 300 to deflect the optical path by a certain angle. When the control motor 400 drives the deflection prism assembly 300 to rotate, the direction of deflection of the laser light path is changed, and finally an annular scanning path is formed.

A through hole is formed in the central shaft of the control motor 400 for the laser beam to pass through. The control motor 400 and the deflection prism assembly 300 are coaxially arranged, so that the occupation of space in the radial direction can be reduced, the internal structure of the pen body 100 is optimized, the transmission structure is optimized, the volume of the pen body 100 can be correspondingly reduced, and the pen body 100 can be conveniently stretched into a small space to perform laser cleaning operation on welding seams.

Referring to fig. 2, it can be understood that the optical path adjusting assembly 200 includes a beam expander group 210 and a focusing lens 220, and the beam expander group 210 and the focusing lens 220 are sequentially disposed along the optical path transmission direction.

The beam expander 210 is used for changing the size of the laser spot, so that the laser beams become larger and more parallel. The laser is not strictly parallel light, but the beam has a beam angle, for a laser, the product of the divergence angle and the beam waist radius is a fixed value, after the laser is expanded by the beam expander lens group 210, the beam waist radius is increased, the divergence angle is naturally reduced, and the laser tends to be parallel light. The laser beam after beam expansion passes through the focusing lens 220, and is concentrated after being converged.

It will be appreciated that the deflection prism assembly 300 includes a sleeve 310, a wedge prism 320 and a first snap ring 330, wherein one end of the sleeve 310 is provided with a bottom plate, the center of the bottom plate is provided with a avoidance hole, the other end of the sleeve 310 is provided with an opening, the wedge prism 320 is installed in the sleeve 310, the first snap ring 330 is disposed in the sleeve 310, and the wedge prism 320 is clamped between the bottom plate and the first snap ring 330.

Referring to fig. 3, the wedge prism 320 is capable of deflecting the laser beam, and the wedge prism 320 may be selected from different angle types according to actual needs, for example, the wedge prism 320 having a type of 2 °,4 °,6 °,8 °,10 °, etc. The larger the angle of the wedge prism 320, the larger the diameter of the resulting ring laser scan path. The wedge prism 320 is disposed within the sleeve 310 and is secured within the sleeve 310 by a first snap ring 330 to limit axial movement thereof. The control motor 400 need only be in driving connection with the sleeve 310 to drive the sleeve 310 to rotate to enable the wedge prism 320 to rotate.

Referring to fig. 4, it can be appreciated that a second snap ring 340 is disposed in the sleeve 310, the second snap ring 340 is in threaded engagement with the inner wall of the sleeve 310, and the second snap ring 340 abuts against the first snap ring 330.

Because the two side surfaces of the wedge prism 320 have included angles, the first clamping ring 330 can only be pressed into the sleeve 310 in a specific direction to contact with the wedge prism 320, and the first clamping ring 330 and the inner wall of the sleeve 310 are in contact to generate friction force to be fixed, so that the possibility of slipping is provided. The second snap ring 340 may be screwed with the inner wall of the sleeve 310, so that the second snap ring 340 is screwed into the sleeve 310 until abutting against the first snap ring 330, and the first snap ring 330 is fixed in an auxiliary manner.

Referring to fig. 5, it can be understood that the end surface of the second clamping ring 340, which is far from the first clamping ring 330, is provided with a first adjusting groove 341.

The second snap ring 340 can be conveniently rotated by using an adjusting tool to be caught in the first adjusting groove 341 so as to screw or unscrew the second snap ring 340.

It can be appreciated that the inner wall of the first snap ring 330 is provided with a supporting ring table near one end of the wedge prism 320, the inside of the first snap ring 330 is provided with a protection mirror 350 and a third snap ring 360, the third snap ring 360 abuts the protection mirror 350 on the supporting ring table, and the third snap ring 360 is in threaded fit with the inner wall of the first snap ring 330.

The protection mirror 350 serves to protect the surface of the wedge prism 320 from damage, such as scratches caused by friction of particles. After the protective mirror 350 is provided, the risk of damage such as scratches is transferred to the protective mirror 350. The third snap ring 360 is screwed into the first snap ring 330, and can abut against the protection mirror 350 to fix the protection mirror 350 to the first snap ring 330.

It can be appreciated that the end surface of the third snap ring 360 away from the protective mirror 350 is provided with a second adjusting groove. The second adjustment groove is used to provide a contact location, as with the second snap ring 340, and the third snap ring 360 can be conveniently rotated using an adjustment tool to snap into the second adjustment groove.

It can be understood that the control motor 400 is disposed at one end of the sleeve 310 having a bottom plate, the output shaft of the control motor 400 is connected with a turntable, the turntable is provided with a through hole coaxial with the avoidance hole, and the turntable is pressed against the end surface of the sleeve 310.

The turntable is in contact with the end surface of the sleeve 310 to generate friction force, and the motor 400 is controlled to drive the turntable to rotate, so that the sleeve 310 is driven to rotate by the friction force, and the wedge prism 320 in the sleeve 310 is rotated.

It is understood that the emitting end 120 is provided with a guiding component 500, the guiding component 500 is connected to the pen body 100, and an end of the guiding component 500 away from the pen body 100 is provided with a guiding surface.

The guide assembly 500 may be provided with guide surfaces of different shapes and sizes to create different types of guide assemblies 500. The guide assembly 500 facilitates manipulation of the pen body 100 to align the weld and dragging the pen body 100 along the weld. For different welding seams, different guide surfaces are required to be in contact with the surface of the welding seam, and the welding seam cleaning device is suitable for cleaning operations after external angle and internal angle and plane welding.

It will be appreciated that the outside of the pen body 100 is provided with a button, which is electrically connected to the control motor 400. The start and stop of the control motor 400 are determined by pressing a button, the deflection of the laser path is manually operated, the control motor 400 can be stopped to rotate when the requirement exists, and the welding seam at a specific position is cleaned by using the laser at a fixed point position.

The embodiments of the present utility model have been described in detail with reference to the accompanying drawings, but the present utility model is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present utility model.

Claims (10)

1. A laser cleaning pen for treating a weld, comprising:

the pen comprises a pen body (100), wherein an optical path channel is formed in the pen body (100), and two ends of the pen body (100) are communicated with the optical path channel and serve as an incident end (110) and an emergent end (120) respectively;

an optical path adjustment assembly (200), the optical path adjustment assembly (200) being disposed within the optical path channel between the incident end (110) and the exit end (120);

a deflection prism assembly (300), wherein the deflection prism assembly (300) is arranged in a cavity of the pen body (100), and the deflection prism assembly (300) is positioned between the light path adjustment assembly (200) and the emergent end (120);

the control motor (400), control motor (400) with the coaxial setting of light path passageway, just the through-hole has been seted up to the center pin of control motor (400), control motor (400) with deflection prism subassembly (300) transmission is connected, can drive deflection prism subassembly (300) are around the axis rotation of light path passageway.

2. The laser cleaning pen for treating welds according to claim 1, characterized in that: the light path adjusting assembly (200) comprises a beam expanding lens group (210) and a focusing lens (220), and the beam expanding lens group (210) and the focusing lens (220) are sequentially arranged along the light path transmission direction.

3. The laser cleaning pen for treating welds according to claim 1, characterized in that: the deflection prism assembly (300) comprises a sleeve (310), a wedge prism (320) and a first clamping ring (330), wherein a bottom plate is arranged at one end of the sleeve (310), an avoidance hole is formed in the center of the bottom plate, the other end of the sleeve (310) is opened, the wedge prism (320) is installed in the sleeve (310), the first clamping ring (330) is arranged in the sleeve (310), and the wedge prism (320) is clamped between the bottom plate and the first clamping ring (330).

4. A laser cleaning pen for treating welds according to claim 3, characterized in that: the sleeve (310) is internally provided with a second clamping ring (340), the second clamping ring (340) is in threaded fit with the inner wall of the sleeve (310), and the second clamping ring (340) is in butt joint with the first clamping ring (330).

5. The laser cleaning pen for treating welds according to claim 4, characterized in that: a first adjusting groove (341) is formed in the end face, far away from the first clamping ring (330), of the second clamping ring (340).

6. A laser cleaning pen for treating welds according to claim 3, characterized in that: the inner wall of first snap ring (330) is close to the one end of wedge prism (320) is equipped with the support ring platform, the inside of first snap ring (330) is equipped with protection mirror (350) and third snap ring (360), third snap ring (360) will protection mirror (350) butt in the support ring platform, third snap ring (360) with the inner wall screw thread fit of first snap ring (330).

7. The laser cleaning pen for treating welds according to claim 6, characterized in that: and a second adjusting groove is formed in the end face, far away from the protective mirror (350), of the third clamping ring (360).

8. A laser cleaning pen for treating welds according to claim 3, characterized in that: the control motor (400) is arranged at one end of the sleeve (310) with a bottom plate, an output shaft of the control motor (400) is connected with a rotary disc, a through hole coaxial with the avoidance hole is formed in the rotary disc, and the rotary disc is pressed against the end face of the sleeve (310).

9. The laser cleaning pen for treating welds according to claim 1, characterized in that: the pen is characterized in that the emergent end (120) is provided with a guide assembly (500), the guide assembly (500) is connected to the pen body (100), and one end, far away from the pen body (100), of the guide assembly (500) is provided with a guide surface.

10. The laser cleaning pen for treating welds according to claim 1, characterized in that: the outer side of the pen body (100) is provided with a button, and the button is electrically connected with the control motor (400).