CN216028755U - Stitch welding joint and laser welding equipment - Google Patents
Stitch welding joint and laser welding equipment Download PDFInfo
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- CN216028755U CN216028755U CN202120869177.0U CN202120869177U CN216028755U CN 216028755 U CN216028755 U CN 216028755U CN 202120869177 U CN202120869177 U CN 202120869177U CN 216028755 U CN216028755 U CN 216028755U
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Abstract
The utility model discloses a stitch welding joint and laser welding equipment. This stitch welding soldered connection includes: the device comprises a ball device, an air blowing device and a focusing device; the ball device is arranged at the bottom of the air blowing device so as to be pressed against the upper weldment and slide on the surface of the upper weldment; blowing inert gas to the welding seam by using a blowing device; the focusing device is arranged at the top of the blowing device to focus and adjust the laser focus. The laser welding equipment comprises a laser light source, a moving shaft and a stitch welding joint. In the welding process, the ball device ensures that no gap exists between the upper welding piece and the lower welding piece, so that the welding stability is improved; the ball device also slides along with the moving shaft on the surface of the upper weldment, does not scratch the surface of the upper weldment, and always supports against the upper weldment, so that the generation of a cold joint phenomenon in the welding process is avoided, and the strength of the welding part is increased; meanwhile, the blowing device blows out inert gas all the time, so that the reaction of molten metal and active gas in the air is avoided, the surface quality of a welding seam is effectively improved, and the consistency of the welding seam is ensured.
Description
Technical Field
The application relates to the technical field of laser welding, in particular to a stitch welding joint and laser welding equipment.
Background
The existing stitch welding processing usually adopts a stitch welding head to weld, but the existing stitch welding head has a complex structure and low welding efficiency, and often has the problems of poor forming consistency, low welding strength and low welding stability of a welding seam, so that the quality of a welding finished product produced by laser welding equipment is low.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problems that the stitch welding joint and the laser welding equipment are provided aiming at overcoming the defects in the prior art, and the stitch welding joint in the prior art is complex in structure, low in welding efficiency, poor in weld forming consistency of a welded finished product, low in welding strength, low in welding stability and low in quality.
In order to solve the above technical problem, an embodiment of the present application provides a stitch welding head, which adopts the following technical scheme:
a stitch weld joint, comprising: the device comprises a ball device, an air blowing device and a focusing device; the ball device is arranged at the bottom of the air blowing device so as to be pressed against the upper weldment and slide on the surface of the upper weldment; the blowing device blows inert gas to the welding seam; the focusing device is arranged at the top of the blowing device to focus and adjust the laser focus.
Further, the ball device comprises an adapter ring, a first mounting block, a second mounting block, at least one elastic piece and at least one ball; the air blowing device is characterized in that the first mounting block is arranged at the bottom of the air blowing device, the top of the adapter ring is fixedly connected with the bottom of the first mounting block, the bottom of the adapter ring extends inwards to form an annular boss, the top of the second mounting block is abutted against the boss, the bottom of the second mounting block protrudes out of the adapter ring, the elastic piece is arranged between the first mounting block and the second mounting block, and the ball is slidably arranged at the bottom of the second mounting block.
Specifically, the elastic part is a spring, and the middle parts of the first mounting block and the second mounting block in the vertical direction are hollowed out.
Specifically, the air blowing device comprises a straight air blowing nozzle and an air inlet nozzle, wherein the air inlet nozzle is arranged on the side wall of the top of the straight air blowing nozzle and communicated with the straight air blowing nozzle.
Specifically, the straight air blowing nozzle is in an inverted cone shape.
Furthermore, the device also comprises a focusing wall cylinder arranged at the top of the air blowing device, and the focusing device is arranged at the bottom in the focusing wall cylinder.
In particular, the focusing device is a focusing lens.
Furthermore, the bottom of the focusing device is provided with protective lenses at intervals, and the protective lenses are arranged between the air blowing device and the focusing device through a third mounting block.
The embodiment of the application also provides a laser welding device, which adopts the following technical scheme:
the laser welding equipment comprises a laser source, a moving shaft and the stitch welding joint, wherein laser emitted by the laser source is conveyed to the stitch welding joint through a transmission device, the stitch welding joint is arranged at the bottom of the transmission device, and the transmission device is fixedly arranged on the moving shaft.
Specifically, the transmission device comprises an optical fiber, an optical fiber collimation connector and a collimation light path component which are connected in sequence; the collimating light path component comprises a collimating wall cylinder and collimating lenses, the collimating lenses are arranged in the collimating wall cylinder, the bottom of the collimating wall cylinder is connected with the top of the stitch welding head and is communicated with the top of the stitch welding head, and the periphery of the collimating wall cylinder is fixedly connected with the moving shaft.
Compared with the prior art, the embodiment of the application has the following beneficial effects: in the welding process, the ball device is pressed against the upper weldment, so that no gap exists between the upper weldment and the lower weldment, and the welding stability is improved; the ball device also slides along with the moving shaft on the surface of the upper weldment, does not scratch the surface of the upper weldment, and always supports against the upper weldment, so that the generation of a cold joint phenomenon in the welding process is avoided, and the strength of the welding part is increased; meanwhile, the blowing device always blows out inert gas (such as argon or nitrogen) to avoid the reaction of molten metal and active gas in the air, effectively improve the surface quality of the welding seam and ensure the consistency of the welding seam; the utility model has the advantages of simple structure, low cost, high quality of finished products after welding and convenience for realizing automatic stitch welding.
Drawings
In order to illustrate the solution of the present application more clearly, the drawings that are needed in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present application, and that other drawings can be obtained by those skilled in the art without inventive effort.
FIG. 1 is a perspective view of a stitch bond joint provided by an embodiment of the present invention;
FIG. 2 is a cross-sectional view of FIG. 1;
FIG. 3 is an enlarged view at A in FIG. 2;
fig. 4 is an exploded view of fig. 1.
Reference numerals:
| 100 | |
110 | |
| 111 | |
112 | |
| 113 | |
114 | |
| 115 | |
116 | Ball bearing |
| 117 | |
120 | |
| 121 | Straight blowing |
122 | |
| 130 | Focusing |
140 | Focusing |
| 150 | |
151 | Third mounting block |
Detailed Description
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 application belongs; the terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "including" and "having," and any variations thereof, in the description and claims of this application and the description of the above figures are intended to cover non-exclusive inclusions. The terms "first," "second," and the like in the description and claims of this application or in the above-described drawings are used for distinguishing between different objects and not for describing a particular order.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.
The embodiment of the present application provides a stitch welding joint 100, as shown in fig. 1 to 4, the stitch welding joint 100 includes: a ball device 110, an air blowing device 120 and a focusing device 130; the ball device 110 is arranged at the bottom of the blowing device 120 to press the upper weldment and slide on the surface of the upper weldment; the blowing device 120 is connected with a gas pump (not shown) to blow inert gas to the welding seam; the focusing device 130 is disposed on the top of the blowing device 120 to focus and adjust the focal point of the laser.
The stitch welding joint 100 provided by the embodiment of the application has the working principle that: the stitch welding joint 100 is installed on a laser welding device, an upper weldment and a lower weldment to be welded together are placed below the stitch welding joint 100, and in the welding process, a moving shaft of the laser welding device moves downwards and drives the stitch welding joint 100 to move downwards, so that a ball device 110 pushes the upper weldment downwards, and the lower surface of the upper weldment is tightly attached to the upper surface of the lower weldment; then, the laser source in the laser welding equipment emits laser, the laser passes through the focusing device 130 and is focused on the upper weldment, so that the upper weldment and the lower weldment are fused together, and meanwhile, the blowing device 120 blows out inert gas (such as argon or nitrogen) to avoid the reaction of the molten metal and active gas in the air; when the motion axis moves on the horizontal plane, the stitch welding joint 100 moves along with the motion axis, the ball device 110 always presses the upper weldment and slides on the surface of the upper weldment, so that no gap is kept between the upper weldment and the lower weldment, the laser source in the laser welding equipment always emits laser, the laser is always focused on the upper weldment by the focusing device 130, the gas blowing device 120 always blows out inert gas, the reaction of molten metal and active gas in the air is avoided, the upper weldment and the lower weldment are continuously fused together, and the high-quality stitch welding of the upper weldment and the lower weldment is realized.
The stitch welding joint 100 provided by the embodiment of the application has the beneficial effects that: in the welding process, the ball device 110 is pressed against the upper weldment, so that no gap exists between the upper weldment and the lower weldment, and the welding stability is improved; the ball device 110 also slides along with the moving shaft on the surface of the upper weldment, does not scratch the surface of the upper weldment, and always supports against the upper weldment, so that no gap is kept between the upper weldment and the lower weldment, the generation of a cold joint phenomenon in the welding process is avoided, and the strength of the weldment is increased; meanwhile, the blowing device 120 always blows out inert gas (such as argon or nitrogen) to avoid the reaction of molten metal and active gas in the air, effectively improve the surface quality of the welding seam and ensure the consistency of the welding seam; the utility model has the advantages of simple structure, low cost, high quality of finished products after welding and convenience for realizing automatic stitch welding.
Further, the ball device 110 includes an adapter ring 111, a first mounting block 113, a second mounting block 114, two elastic members 115, and four balls 116; the first mounting block 113 is arranged at the bottom of the blowing device 120, the top of the adapter ring 111 is fixedly connected with the first mounting block 113, the bottom of the adapter ring 111 extends inwards to form an annular boss 112, the top of the second mounting block 114 is abutted against the boss 112, the bottom of the second mounting block 114 protrudes out of the adapter ring 111, the elastic piece 115 is arranged between the first mounting block 113 and the second mounting block 114, and the ball 116 is slidably arranged at the bottom of the second mounting block 114.
When the moving shaft drives the ball device 110 to move downwards, the ball 116 abuts against the surface of the upper weldment, under the mutual action of the forces, the ball 116 and the second mounting block 114 move upwards, the elastic piece 115 is extruded and deformed, and meanwhile, under the action of elastic potential energy of the elastic piece 115, the ball 116 abuts against the upper weldment downwards to enable the lower surface of the upper weldment to be tightly attached to the upper surface of the lower weldment; and the ball 116 is slidably coupled to the bottom of the second mounting block 114 so that the ball assembly 110 does not scratch the surface of the upper weldment when moving.
The top of the first mounting block 113 is fixedly connected with the inner wall of the bottom of the air blowing device 120, the middle of the first mounting block extends outwards to form a first platform, the upper edge of the first platform is abutted against the lower edge of the bottom of the air blowing device 120, the diameter of the first platform is consistent with that of the adapter ring 111, two blind holes arranged in the radial direction are formed in the bottom of the first mounting block 113, and the adapter ring 111 is sleeved at the bottom of the third mounting block 113 and is fixedly connected with the third mounting block through two bolts 117.
The top of the second mounting block 114 extends outwards to form a second platform, the diameter of the second platform is consistent with the diameter of the inner wall of the adapter ring 111, the lower edge of the second platform is abutted against the upper edge of the boss 112 of the adapter ring 111, and the diameter of the bottom of the second mounting block is consistent with the diameter of the inner wall of the boss 112, so that the bottom of the second mounting block 114 can move up and down in the adapter ring 111 and cannot fall off from the adapter ring 111.
Specifically, the elastic member 115 is a spring; the middle parts of the first mounting block 113 and the second mounting block 114 in the vertical direction are hollow; the laser emitted from the laser source in the laser welding apparatus and the inert gas blown by the gas blowing device 120 can pass through the middle of the first mounting block 113 and the second mounting block 114.
Specifically, the blowing device 120 includes a straight blowing nozzle 121 and an air inlet nozzle 122, the air inlet nozzle 122 is disposed on a top side wall of the straight blowing nozzle 121 and is communicated with the straight blowing nozzle 121, and the air pump delivers inert gas (such as argon or nitrogen) to the straight blowing nozzle 121 through the air inlet nozzle 122, so as to avoid reaction between molten metal and active gas in the air, effectively improve the surface quality of the weld joint, and ensure the consistency of the weld joint.
Specifically, the straight blow nozzle 121 has an inverted conical shape, so that the inert gas can accurately act on the molten metal at the weld.
Further, the stitch welding joint 100 further comprises a focusing wall cylinder 140 disposed at the top of the blowing device 120, the focusing device 130 is disposed at the bottom inside the focusing wall cylinder 140, and the focusing wall cylinder 140 is used for being fixedly connected with the laser welding device.
Specifically, the focusing device 130 is a focusing lens, which is a plano-convex lens with the convex surface facing upward.
Further, the bottom of the focusing device 130 is provided with a protective lens 150 at an interval, the protective lens 150 is a plane mirror, and the protective lens 150 is made of quartz glass; the protection lens 150 is disposed between the air blowing device 120 and the focusing device 130 through the third mounting block 151, and the protection lens 150 is used to prevent spatter generated during welding from contaminating the focusing device 130.
The third mounting block 151 is a detachable structure, and includes an upper layer and a lower layer, the lower layer is fixedly connected with the top of the blowing device 120, the upper edge of the lower layer is provided with a clamping groove, the protection lens 150 is placed in the clamping groove, the periphery of the lower layer is located by the upper layer bottom cover, and the middle part of the inner wall of the upper layer extends inwards to form a clamping ring, the clamping ring abuts against the protection lens 150, so that the protection lens 150 is fixed in the clamping groove, the top of the upper layer extends upwards to form a containing groove with the middle part clamping ring, and the focusing device 130 is fixedly arranged in the containing groove.
The embodiment of the application also provides laser welding equipment, and the laser welding equipment includes laser source, motion axle and stitch welding head 100 as above, and the laser that laser source jetted out passes through transmission device and carries to stitch welding head 100, and stitch welding head 100 locates the transmission device bottom, and transmission device sets firmly on the motion axle.
Specifically, the transmission device comprises an optical fiber, an optical fiber collimation connector and a collimation light path component which are connected in sequence; the collimation light path component comprises a collimation wall cylinder and a collimation lens, the collimation lens is arranged in the collimation wall cylinder, the bottom of the collimation wall cylinder is connected and communicated with the top of the stitch welding head 100, and the periphery of the collimation wall cylinder is fixedly connected with the movement shaft; the collimating lens is a plano-convex lens, and the convex surface of the collimating lens is arranged downwards.
The laser light source emits laser, the laser sequentially passes through the optical fiber, the optical fiber collimation connector and the collimation light path component, and when the laser passes through the collimation lens in the collimation light path component, the laser is shaped into parallel beams; the parallel beam is then focused onto the upper weldment via focusing device 130, fusing the upper and lower weldments together.
It is to be understood that the above-described embodiments are merely illustrative of some, but not restrictive, of the broad invention, and that the appended drawings illustrate preferred embodiments of the utility model and do not limit the scope of the utility model. This application is capable of embodiments in many different forms and is provided for the purpose of enabling a thorough understanding of the disclosure of the application. Although the present application has been described in detail with reference to the foregoing embodiments, it will be apparent to one skilled in the art that the present application may be practiced without modification or with equivalents of some of the features described in the foregoing embodiments. All equivalent structures made by using the contents of the specification and the drawings of the present application are directly or indirectly applied to other related technical fields and are within the protection scope of the present application.
Claims (10)
1. A stitch weld joint, comprising:
the device comprises a ball device, an air blowing device and a focusing device;
the ball device is arranged at the bottom of the air blowing device so as to be pressed against the upper weldment and slide on the surface of the upper weldment;
the blowing device blows inert gas to the welding seam;
the focusing device is arranged at the top of the blowing device to focus and adjust the laser focus.
2. The stitch weld joint of claim 1, wherein the ball means comprises an adapter ring, a first mounting block, a second mounting block, at least one resilient member, and at least one ball;
the air blowing device is characterized in that the first mounting block is arranged at the bottom of the air blowing device, the top of the adapter ring is fixedly connected with the bottom of the first mounting block, the bottom of the adapter ring extends inwards to form an annular boss, the top of the second mounting block is abutted against the boss, the bottom of the second mounting block protrudes out of the adapter ring, the elastic piece is arranged between the first mounting block and the second mounting block, and the ball is slidably arranged at the bottom of the second mounting block.
3. The stitch welding joint according to claim 2, wherein the elastic member is a spring, and the first and second mounting blocks are hollowed out in the vertical direction.
4. An stitch welding joint as defined in claim 1, wherein said blowing means comprises a straight blowing nozzle and an air inlet nozzle, said air inlet nozzle being disposed on a top side wall of said straight blowing nozzle and communicating with said straight blowing nozzle.
5. Stitch-welding joint according to claim 4, characterized in that the straight blow nozzle is of an inverted conical shape.
6. The stitch welding head according to claim 1, further comprising a focusing wall cylinder disposed at a top of the blowing device, wherein the focusing device is disposed at a bottom within the focusing wall cylinder.
7. Stitch welding head according to claim 1, characterized in that the focusing means is a focusing lens.
8. The stitch welding joint as recited in claim 1, wherein a protective lens is spaced from a bottom of the focusing device, and the protective lens is disposed between the blowing device and the focusing device through a third mounting block.
9. A laser welding device, characterized in that the laser welding device comprises a laser source, a moving shaft and a stitch welding joint as claimed in any one of claims 1-8, wherein laser emitted by the laser source is transmitted to the stitch welding joint through a transmission device, the stitch welding joint is arranged at the bottom of the transmission device, and the transmission device is fixedly arranged on the moving shaft.
10. The laser welding apparatus according to claim 9, wherein the transmission device comprises an optical fiber, an optical fiber alignment connector and an alignment optical path component which are connected in sequence;
the collimating light path component comprises a collimating wall cylinder and collimating lenses, the collimating lenses are arranged in the collimating wall cylinder, the bottom of the collimating wall cylinder is connected with the top of the stitch welding head and is communicated with the top of the stitch welding head, and the periphery of the collimating wall cylinder is fixedly connected with the moving shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120869177.0U CN216028755U (en) | 2021-04-25 | 2021-04-25 | Stitch welding joint and laser welding equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120869177.0U CN216028755U (en) | 2021-04-25 | 2021-04-25 | Stitch welding joint and laser welding equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216028755U true CN216028755U (en) | 2022-03-15 |
Family
ID=80613967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120869177.0U Active CN216028755U (en) | 2021-04-25 | 2021-04-25 | Stitch welding joint and laser welding equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216028755U (en) |
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2021
- 2021-04-25 CN CN202120869177.0U patent/CN216028755U/en active Active
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