CN214921385U

CN214921385U - Gas protection device and laser marking equipment

Info

Publication number: CN214921385U
Application number: CN202022259928.5U
Authority: CN
Inventors: 袁杰; 曹洪涛; 刘亮; 吕启涛; 高云峰
Original assignee: Han s Laser Technology Industry Group Co Ltd
Current assignee: Han s Laser Technology Industry Group Co Ltd
Priority date: 2020-10-12
Filing date: 2020-10-12
Publication date: 2021-11-30
Anticipated expiration: 2030-10-12

Abstract

The embodiment of the utility model discloses gas protection device and laser marking equipment, include: the window comprises a shell, a window sheet and a feeding assembly; the shell forms a sealed cavity, an air inlet hole, a feed inlet and a marking hole which are respectively communicated with the sealed cavity are formed in the shell, the air inlet hole is used for filling protective gas into the sealed cavity, and the central axis of the marking hole is vertically intersected with the central axis of the feed inlet; the window sheet is used for sealing the marking hole; the material loading subassembly includes tool board and involution, the tool board is used for holding and waits to beat the mark product, tool board movably wears to locate the feed inlet is so that wait to beat the mark product at least part and be located beat the orthographic projection in mark hole, the involution is used for the involution the feed inlet. By the technical scheme, the technical problem that when the product is marked by laser in the prior art, black edges and other phenomena are generated due to overhigh temperature is solved.

Description

Gas protection device and laser marking equipment

Technical Field

The utility model relates to a laser beam machining's technical field especially relates to a gas protection device and laser marking equipment.

Background

The laser is an electromagnetic wave with consistent phase, certain wavelength and strong directivity, the laser processing technology has higher working efficiency, and can avoid the occurrence of tool abrasion failure in the traditional processing method, thereby being widely applied to the field of material processing.

However, in the process of marking a product by using laser, since the marking time is long, the number of times is large, and the temperature of a laser-affected area is high, the product reacts with air around the product, so that impurities such as oxides and nitrides are generated, for example, the edge of the product has a black edge phenomenon, thereby affecting the effect and quality of laser marking.

SUMMERY OF THE UTILITY MODEL

In view of the above, it is necessary to provide a gas protection device and a laser processing apparatus to solve the technical problem of the prior art that when a product is polished by laser, black edges are generated due to an excessive temperature.

To this end, according to a first aspect, an embodiment provides a gas-protecting device comprising:

the device comprises a shell, a gas inlet, a feed inlet and a marking hole, wherein the shell forms a sealed cavity, the shell is provided with the gas inlet, the feed inlet and the marking hole which are respectively communicated with the sealed cavity, the gas inlet is used for filling protective gas into the sealed cavity, and the central axis of the marking hole is vertically intersected with the central axis of the feed inlet;

the window sheet is used for sealing the marking hole;

the feeding assembly comprises a jig plate and a sealing piece, the jig plate is used for bearing a product to be marked, the jig plate movably penetrates through the feeding hole so that at least part of the product to be marked is located in the orthographic projection of the marking hole, and the sealing piece is used for sealing the feeding hole.

In some embodiments of the gas shield apparatus, the walls of the marking holes extend radially to form a baffle plate, and the window sheet is disposed on the baffle plate.

In some embodiments of the gas-protecting apparatus, the gas-protecting apparatus further comprises a pressing ring, the pressing ring is clamped into the marking hole to press the window piece onto the baffle.

In some embodiments of the gas protection device, the feeding assembly further includes a guide rail and a slider, the slider is fixed in the housing, the guide rail is slidably connected with the slider, and the jig plate is disposed on the guide rail.

In some embodiments of the gas protection device, the feeding assembly further includes an adapter plate and a pressing plate, the adapter plate is fixedly connected with the guide rail, and the jig plate is detachably disposed on the adapter plate; the clamp plate is used for covering and pressing the jig plate, an avoiding opening is formed in the clamp plate, and the avoiding opening surrounds a marking area of a product to be marked.

In some embodiments of the gas protection device, the feeding assembly further includes a limit baffle connected to the penetrating end of the adapter plate, and the limit baffle is used for abutting against the inner wall surface of the feed port.

In some embodiments of the gas protection device, the surface of the jig plate for supporting the product to be marked is recessed to form an avoiding groove, and the avoiding groove is used for avoiding the laser beam.

In some embodiments of the gas-protecting apparatus, the seal is located outside the housing and is connected to the adapter plate; the feeding assembly further comprises a handle piece, and the handle piece is arranged on the side face, far away from the adapter plate, of the sealing piece.

In some embodiments of the gas protection device, the gas protection device further includes a first magnetic attraction member disposed on a side of the sealing member facing the housing, and a second magnetic attraction member disposed in the housing corresponding to the first magnetic attraction member.

According to a second aspect, an embodiment provides a laser marking device comprising a gas shielding device according to the first aspect of the invention.

Adopt the embodiment of the utility model provides a, following beneficial effect has:

the central axis of the marking hole is vertically intersected with the central axis of the feeding hole, so that the jig plate can move through the feeding hole to enable at least part of a product to be marked on the jig plate to be positioned in the orthographic projection of the marking hole, and then the sealing piece seals the feeding hole; protective gas fills into sealed intracavity from the inlet port, lives through the window piece involution and marks the hole, and the optical characteristic of window piece makes laser beam can pass the window piece and mark the product in sealed intracavity, and sealed intracavity is filled has protective gas for the product does not take place chemical reaction because of marking the rising of temperature, and then phenomenon such as black border appears. By the technical scheme, the technical problem that when the product is marked by laser in the prior art, black edges and other phenomena are generated due to overhigh temperature is solved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Wherein:

fig. 1 shows a schematic structural diagram of a gas protection device according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram illustrating a loading state of a gas protection device according to an embodiment of the present invention;

fig. 3 is a schematic exploded view of a gas protecting device according to an embodiment of the present invention;

fig. 4 shows a cross-sectional view in the direction a-a of fig. 1.

Description of the main element symbols:

10. a housing; 10a, sealing the cavity; 10b, an air inlet hole; 10c, a feed inlet; 10d, marking holes; 10e, a baffle; 11. a frame body; 12. sealing the cover; 21. a window sheet; 22. a compression ring; 31. a jig plate; 311. an avoidance groove; 32. sealing pieces; 33. a slider; 34. a guide rail; 35. an adapter plate; 36. pressing a plate; 361. avoiding the mouth; 37. a limit baffle; 38. a handle member; 40. a throttle valve; 100. and a gas protection device.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The embodiment of the utility model provides an in, provide a laser marking equipment, including laser instrument and gas protection device 100, laser marking equipment beats standard, and the higher chemical reaction that easily takes place of laser action zone temperature needs protect the product through gas protection device 100 in order to improve and beat the mark quality.

To this end, the embodiment of the present invention provides a gas protection device 100 for a laser marking apparatus, including: the casing 10, the window sheet 21 and the feeding assembly.

Referring to fig. 1-4, a sealed cavity 10a is formed in a housing 10, an air inlet 10b, a feeding hole 10c and a marking hole 10d are respectively formed in the housing 10 and are communicated with the sealed cavity 10a, the air inlet 10b is used for filling a shielding gas into the sealed cavity 10a, and a central axis of the marking hole 10d is vertically intersected with a central axis of the feeding hole 10 c; the window sheet 21 is used for sealing the marking hole 10 d; the material loading subassembly includes tool board 31 and involution 32, and tool board 31 is used for holding the product of waiting to beat the mark, and tool board 31 movably wears to locate feed inlet 10c so that wait to beat the orthographic projection that mark hole 10d was located to the product at least part, and involution 32 is used for the involution feed inlet.

In the utility model, the central axis of the marking hole 10d is vertically intersected with the central axis of the feeding hole 10c, so that the jig plate 31 can move through the feeding hole 10c to enable the product to be marked on the jig plate 31 to be at least partially positioned in the orthographic projection of the marking hole 10d, and then the sealing piece 32 seals the feeding hole 10 c; protective gas is filled into the sealed cavity 10a from the air inlet hole 10b, the marking hole 10d is sealed through the window sheet 21, the laser beam can penetrate through the window sheet 21 to mark a product in the sealed cavity 10a due to the optical characteristics of the window sheet 21, and the protective gas is filled in the sealed cavity 10a, so that the product is free from chemical reaction caused by the rise of the marking temperature, and the phenomena such as black edges and the like are caused. By the technical scheme, the technical problem that when the product is marked by laser in the prior art, black edges and other phenomena are generated due to overhigh temperature is solved.

It should be noted that the window sheet 21 is an optical glass composed of a fine polished surface and a polished surface which are relatively parallel, and is used to isolate two physical environments and allow light to pass through.

On the other hand, the protective gas can be nitrogen, and the nitrogen has stable chemical property, is not easy to have chemical reaction with other substances, and is non-toxic and pollution-free. Further, the gas inlet hole 10b is provided with a throttle valve 40 for adjusting the introduction speed of the protective nitrogen gas.

Referring to fig. 2 and 3, in some embodiments, the wall of the marking hole 10d extends radially to form a baffle 10e, and the window piece 21 is disposed on the baffle 10 e. The window sheet 21 is positioned in the marking hole 10d through the baffle 10e, so that on one hand, the sealing performance of the window sheet 21 on the marking hole 10d is ensured, and on the other hand, the window sheet 21 is prevented from being exposed out of the marking hole 10d and easily scratched by a foreign object.

In one embodiment, the gas protecting device 100 is further provided with a pressing ring 22, and the outer dimension of the pressing ring 22 is matched with the aperture of the marking hole 10d, so that the pressing ring 22 is clamped into the marking hole 10d and presses the window sheet 21 on the baffle 10e, so that the window sheet 21 and the shell 10 are kept relatively stable and seal the marking hole 10 d.

In one embodiment, the feeding assembly further includes a guide rail 34 and a slider 33, the slider 33 is fixed in the housing 10, the guide rail 34 is slidably connected with the slider 33, and the jig plate 31 is disposed on the guide rail 34. That is, the jig plate 31 is movably inserted into the feed port 10c through the sliding connection between the guide rail 34 and the slider 33, and the product to be marked is conveyed into the sealing cavity 10a from the outside of the housing 10, and the product to be marked is located in the orthographic projection of the marking hole 10 d.

In an embodiment, the material loading subassembly still includes adapter plate 35,

adapter plate

35 and 34 fixed connection of guide rail, and tool board 31 detachable sets up on adapter plate 35, and is fixed with guide rail 34 through setting up adapter plate 35, has increased the support area of tool board 31 on the one hand, guarantees that tool board 31 places balanced stability, and on the other hand realizes the demountable installation of tool board 31, can carry out the laser marking of gas protection formula to different products.

In one embodiment, the feeding assembly further includes a pressing plate 36 for covering and pressing the jig plate 31, corresponding positioning holes are formed in the jig plate 31 and the pressing plate 36, and positioning pins are inserted into the positioning holes to keep the position between the jig plate 31 and the pressing plate 36 relatively stable; meanwhile, the pressing plate 36 is provided with an avoiding opening 361, and the avoiding opening 361 surrounds the marking area of the product to be marked, namely, the marking area of the product to be marked is exposed through the avoiding opening 361, so that the marking of the product by the laser beam is realized.

In one embodiment, the feeding assembly further comprises a limit baffle 37e connected to the penetrating end of the adapter plate 35, and the limit baffle 37e is used for abutting against the inner wall surface of the feeding port 10 c. After marking is finished, the adapter plate 35 slides in the sliding block 33 through the guide rail 34 to move, and when a product is conveyed to the shell 10, the limiting baffle 37e abuts against the inner wall surface of the feed inlet 10c, so that the guide rail 34 is prevented from being separated from the sliding block 33 due to overlarge displacement of the adapter plate 35.

In an embodiment, the jig plate 31 is used for supporting the surface of the product to be marked to be recessed to form an avoiding groove 311, the avoiding groove 311 is used for avoiding the laser beam, the laser beam is prevented from hitting the jig plate 31, and the depth of the avoiding groove 311 can be set according to actual requirements.

In some embodiments, the seal is located outside the housing 10 and is connected to the adapter plate 35; the feeding assembly further comprises a handle member 38, the handle member 38 being arranged on the side of the sealing member remote from the adapter plate 35. Therefore, the input and output of the jig plate 31 can be controlled by the handle 38, and after the jig plate 31 is transported in place, the sealing element is matched and sealed to seal the feed port 10c, so that the operations of feeding the product and sealing the feed port 10c are combined, and the marking efficiency is improved.

In addition, a containing groove may be formed on a side surface of the sealing member facing the casing 10, and a sealing ring may be disposed in the containing groove, so that when the sealing member seals the feed port 10c, the sealing ring is located between the sealing member and the surface of the casing 10, thereby improving the sealing effect.

In one embodiment, the gas protection device 100 further includes a first magnetic attraction member disposed on a side of the sealing member facing the housing 10, and a second magnetic attraction member disposed in the housing 10 corresponding to the first magnetic attraction member. Through the magnetic attraction between the first magnetic attraction piece and the second magnetic attraction piece, the sealing piece is ensured to be stably sealed on the feeding hole 10 c.

In one embodiment, the housing 10 includes a frame 11 having an opening and a cover 12 detachably connected to the frame 11 and covering the opening, that is, the frame 11 and the cover 12 together form a sealed cavity 10a, and the housing 10 is assembled by the cover 12 and the frame 11, so that the environment of the sealed cavity 10a can be cleaned periodically after the slider 33 or other structural components are mounted on the housing 10.

In some specific embodiments, the marking hole 10d is formed in the cover 12, and the feeding hole 10c is formed in the frame 11, so that the product to be marked is conveyed into the sealing cavity 10a from the feeding hole 10c and is located in an orthographic projection of the marking hole 10d, so as to mark the product to be marked by laser.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above examples are merely illustrative of several embodiments of the present invention, which are described in more detail and detail, but are not to be construed as limiting the scope of the claims. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A gas-protecting apparatus, comprising:

the window sheet is used for sealing the marking hole;

the feeding assembly comprises a jig plate and a sealing piece, the jig plate is used for bearing a product to be marked, the jig plate movably penetrates through the feeding hole to enable at least part of the product to be marked to be located in the orthographic projection of the marking hole, and the sealing piece is used for sealing the feeding hole.

2. The gas-protecting apparatus of claim 1, wherein the wall of the hole is extended radially to form a baffle plate, and the window plate is disposed on the baffle plate.

3. The gas-protecting apparatus of claim 2, further comprising a clamp ring clamped into the marking hole to clamp the window piece against the baffle.

4. The gas protection device of any one of claims 1-3, wherein said loading assembly further comprises a guide rail and a slider, said slider is fixed in said housing, said guide rail is slidably connected to said slider, and said jig plate is disposed on said guide rail.

5. The gas protection device of claim 4, wherein the feeding assembly further comprises an adapter plate and a pressing plate, the adapter plate is fixedly connected with the guide rail, and the jig plate is detachably arranged on the adapter plate; the clamp plate is used for covering and pressing the jig plate, an avoiding opening is formed in the clamp plate, and the avoiding opening surrounds a marking area of a product to be marked.

6. The gas protection device of claim 5, wherein the feed assembly further comprises a limit baffle connected to the penetration end of the adapter plate, the limit baffle being configured to abut against an inner wall surface of the feed port.

7. The gas protection device of claim 6, wherein the surface of the jig plate for supporting the product to be marked is recessed to form an avoiding groove for avoiding the laser beam.

8. The gas-protecting apparatus of claim 7, wherein said enclosure is located outside said housing and is connected to said adaptor plate; the feeding assembly further comprises a handle piece, and the handle piece is arranged on the side face, far away from the adapter plate, of the sealing piece.

9. The gas protection device of claim 8, further comprising a first magnetically attractive element disposed on a side of the enclosure facing the housing and a second magnetically attractive element disposed within the housing corresponding to the first magnetically attractive element.

10. Laser marking device, characterized in that it comprises a gas protection device according to any one of claims 1-9.