CN108724739B - Automatic pressure regulating clamp and pressure regulating method for laser welding - Google Patents
Automatic pressure regulating clamp and pressure regulating method for laser welding Download PDFInfo
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- CN108724739B CN108724739B CN201710244330.9A CN201710244330A CN108724739B CN 108724739 B CN108724739 B CN 108724739B CN 201710244330 A CN201710244330 A CN 201710244330A CN 108724739 B CN108724739 B CN 108724739B
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- pressure regulating
- plastic
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
- B29C65/16—Laser beams
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/82—Pressure application arrangements, e.g. transmission or actuating mechanisms for joining tools or clamps
- B29C66/824—Actuating mechanisms
- B29C66/8242—Pneumatic or hydraulic drives
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/90—Measuring or controlling the joining process
- B29C66/92—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools
- B29C66/922—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by measuring the pressure, the force, the mechanical power or the displacement of the joining tools
- B29C66/9221—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by measuring the pressure, the force, the mechanical power or the displacement of the joining tools by measuring the pressure, the force or the mechanical power
- B29C66/92211—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by measuring the pressure, the force, the mechanical power or the displacement of the joining tools by measuring the pressure, the force or the mechanical power with special measurement means or methods
Abstract
The invention discloses an automatic pressure regulating clamp and a pressure regulating method for laser welding, which relate to the field of machining, and comprise: the plastic frame comprises an arc-shaped pressure regulating plate, a spring, a hemispherical bracket, a transparent pressure plate, an upper plastic layer and a lower plastic layer; the hemispherical support comprises a support frame and a base, the arc-shaped pressure regulating plate is arranged above the support frame, two ends of the arc-shaped pressure regulating plate are respectively fixed on the base through the springs, and the lower end of the support frame is fixedly arranged in the central area of the base; transparent clamp plate, plastics upper strata and plastics lower floor superpose from top to bottom in proper order and place arc pressure regulating plate top. The automatic pressure regulating clamp and the pressure regulating method for laser welding provided by the embodiment of the invention can automatically regulate the pressure borne by the plastic product to be welded, so that the stress between the upper plastic layer and the lower plastic layer is balanced, a better welding effect is obtained, and the yield and the production efficiency of the product are effectively improved.
Description
Technical Field
The invention relates to the field of machining, in particular to an automatic pressure regulating clamp and a pressure regulating method for laser welding.
Background
A finished plastic article may be made from a variety of materials or components, and a faster, more efficient, cleaner plastic joining method is desired to join the components during the manufacturing process of the plastic article, and the joining may be performed by mechanical fasteners, adhesives, welding, and the like. Among the three connection modes, the effect of the welding process is the best, the welding forms are various, and different welding processes can be used according to different materials, sizes and purposes. With advances in materials and equipment, the use of lasers as tools for welding plastic articles has also gained increasing customer acceptance.
Laser welding is a technique in which the contact surfaces of plastic are melted by the heat generated by a laser beam, thereby bonding thermoplastic sheets, films, or molded parts together.
In the plastic laser welding, a proper laser and optimized process parameters (power, speed, spot size and the like) are selected, and the fixture clamp is used as an external factor to play a vital role in realizing good welding. For plastic products adopting laser welding, lap joints are generally adopted, laser irradiates lower-layer plastic to generate heat and melt, and the heat is transferred to the upper-layer plastic in a conduction mode due to close contact of the upper-layer plastic, then the upper-layer plastic is melted and is connected with the lower-layer plastic after being solidified, so that welding is realized.
Because the air is thermal-insulated, the clearance between upper and lower layer plastics can lead to the efficiency reduction of heat conduction, influences the welding quality, simultaneously because the existence of air has the risk that leads to plastics oxidation, carbonization when heating. Therefore, the smaller the gap between the upper and lower layers of plastic, the easier it is to obtain a good quality weld.
The common plastic welding fixture can provide uniform pressure for plastic parts with high flatness, but for plastic parts with large area or thin wall, the plastic parts are easy to slightly deform in the pressing process, so that the upper layer and the lower layer of the plastic product are not tightly attached, errors are generated in the welding process, and the yield of the product is reduced.
Disclosure of Invention
In order to overcome the defects of related products in the prior art, the invention provides an automatic pressure regulating clamp and a pressure regulating method for laser welding, which are suitable for laser welding of plastic products with larger sizes, can provide uniform pressure to enable the upper layer and the lower layer of the plastic products to be tightly attached, and improve the welding precision.
The invention provides an automatic pressure regulating clamp for laser welding, which comprises: the plastic frame comprises an arc-shaped pressure regulating plate, a spring, a hemispherical bracket, a transparent pressure plate, an upper plastic layer and a lower plastic layer; the hemispherical support comprises a support frame and a base, the arc-shaped pressure regulating plate is arranged above the support frame, two ends of the arc-shaped pressure regulating plate are respectively fixed on the base through the springs, and the lower end of the support frame is fixedly arranged in the central area of the base; transparent clamp plate, plastics upper strata and plastics lower floor superpose from top to bottom in proper order and place arc pressure regulating plate top.
As a further improvement of the invention, the lower end of the arc-shaped pressure regulating plate comprises an arc-shaped curved surface, two ends of the arc-shaped curved surface are flat connecting surfaces, and the two connecting surfaces are respectively fixedly connected with the two springs; the middle area of the upper end of the arc pressure regulating plate is provided with a groove.
As a further improvement of the invention, the upper end of the support frame is a hemispherical surface, the hemispherical surface is in contact with the arc-shaped curved surface, and the hemispherical surface and the arc-shaped curved surface are tangent on a straight line formed by the centers of the sphere where the hemispherical surface and the arc-shaped curved surface are located, wherein the curvature radius of the arc-shaped curved surface is greater than the radius of the hemispherical surface.
As a further improvement of the invention, the clamp further comprises a supporting plate, the supporting plate is placed in the groove, and the length of the groove is matched with that of the supporting plate.
As a further improvement of the invention, the supporting plate is formed by connecting a bottom plate and two fixing plates, the two fixing plates are respectively and vertically fixed on two sides of the bottom plate, the depth of the groove is greater than the height of the fixing plates, and the supporting plate is used for placing a plastic product to be welded.
As a further improvement of the invention, the plastic product is formed by welding an upper plastic layer and a lower plastic layer, the lower plastic layer is placed in the supporting plate, the upper plastic layer is placed on the supporting plate, and the bottom surface of the upper plastic layer is in contact with the top surface of the lower plastic layer and the top surface of the fixing plate.
As a further improvement of the invention, the top surface of the lower plastic layer and the top surface of the fixing plate are positioned on the same plane, and the top surface of the upper plastic layer protrudes out of the upper end of the arc-shaped pressure regulating plate.
As a further improvement of the invention, the transparent pressing plate is placed on the plastic upper layer, and pressure-sensitive test paper is placed between the transparent pressing plate and the plastic upper layer and is used for detecting the compression condition of the plastic upper layer.
As a further improvement of the invention, the transparent pressing plate is made of a transparent material, and the color change condition of the pressure-sensitive test paper is obtained through the transparent pressing plate.
The invention provides an automatic pressure regulating method for laser welding, which comprises the following steps: placing a lower plastic layer in the supporting plate, and placing an upper plastic layer on the upper plastic layer in an overlapping manner; placing pressure-sensitive test paper at the upper end of the plastic upper layer, and carrying out pressure test on the joint of the plastic upper layer and the plastic lower layer through a transparent pressing plate; observing the color change condition of the pressure-sensitive test paper, after confirming that the stress of the upper layer of the plastic is balanced, stopping applying pressure by the transparent pressing plate, taking out the pressure-sensitive test paper, carrying out welding treatment on the plastic product, and removing the welded plastic product; and repeating the steps.
Compared with the prior art, the invention has the following advantages:
the automatic pressure regulating clamp and the pressure regulating method for laser welding provided by the embodiment of the invention can automatically regulate the pressure borne by the plastic product to be welded, so that the stress between the upper plastic layer and the lower plastic layer is balanced, a better welding effect is obtained, and the yield and the production efficiency of the product are effectively improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of an automatic pressure regulating fixture for laser welding according to the present invention;
fig. 2 is a schematic flow chart of the automatic pressure regulating method for laser welding according to the present invention.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. It is to be understood that the described embodiments are merely illustrative of some, but not all, of the embodiments of the invention, and that the preferred embodiments of the invention are shown in the drawings. This invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, but rather should be construed as broadly as the present disclosure is set forth in order to provide a more thorough understanding thereof. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
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. The terms "first," "second," and the like in the description and claims of the present invention and in the above-described drawings are used for distinguishing between different objects and not for describing a particular order. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.
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 invention. 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.
Referring to fig. 1, which is a schematic structural diagram of the automatic pressure regulating clamp for laser welding according to the present invention, the automatic pressure regulating clamp for laser welding includes an arc-shaped pressure regulating plate 1, a spring 3, a supporting plate 5, a hemispherical support 2, a transparent pressure plate 4, an upper plastic layer 7 and a lower plastic layer 6; the hemispherical support 2 comprises a support frame 22 and a base 21, the arc-shaped pressure regulating plate 1 is arranged above the support frame 22, two ends of the arc-shaped pressure regulating plate 1 are respectively fixed on the base 21 through the springs 3, and the lower end of the support frame 22 is fixedly arranged in the central area of the base 21; transparent clamp plate 4, plastics upper strata 7 and plastics lower floor 6 superpose from top to bottom in proper order and place arc pressure regulating plate 1 top.
The lower end of the arc-shaped pressure regulating plate 1 comprises an arc-shaped curved surface 11, two ends of the arc-shaped curved surface 11 are flat connecting surfaces 12, and the two connecting surfaces 12 are fixedly connected with the two springs 3 respectively; the middle area of the upper end of the arc-shaped pressure regulating plate 1 is provided with a groove 13, the groove 13 is used for placing the supporting plate 5, and the length of the groove 13 is matched with that of the supporting plate 5, so that the supporting plate 5 is placed in the groove 13.
The upper end of the supporting frame 22 is a hemispherical surface, the hemispherical surface is in contact with the arc-shaped curved surface 11, and the hemispherical surface is tangent to the arc-shaped curved surface 11 on a straight line formed by the centers of the two, wherein the radius of curvature of the arc-shaped curved surface 11 is larger than that of the hemispherical surface, so that the arc-shaped curved surface 11 rolls on the hemispherical surface.
The supporting plate 5 is formed by connecting a bottom plate 51 and two fixing plates 52, the two fixing plates 52 are respectively and vertically fixed on two sides of the bottom plate 51, the depth of the groove 13 is greater than the height of the fixing plates 52, and the supporting plate 5 is used for placing a plastic product to be welded.
The plastic product is formed by welding an upper plastic layer 7 and a lower plastic layer 6, the lower plastic layer 6 is placed in the supporting plate 5, the top surface of the lower plastic layer 6 is located on the same plane as the top surface of the fixing plate 52, the upper plastic layer 7 is placed on the supporting plate 5, the bottom surface of the upper plastic layer 7 is in contact with the top surface of the lower plastic layer 6 and the top surface of the fixing plate 52, and the top surface of the upper plastic layer 7 protrudes out of the upper end of the arc-shaped pressure regulating plate 1.
The transparent pressing plate 4 is placed on the plastic upper layer 7, the transparent pressing plate 4 is pressed downwards through an external air source, the transparent pressing plate 4 applies pressure to press the plastic upper layer 7 and the plastic lower layer 6 tightly, pressure-sensitive test paper is placed between the transparent pressing plate 4 and the plastic upper layer 7, and the pressure-sensitive test paper is used for detecting the pressing condition of the plastic upper layer 7; the transparent pressing plate 4 is made of transparent materials, so that the color change condition of the pressure-sensitive test paper can be clearly obtained through the transparent pressing plate 4, and after the plastic upper layer 7 is confirmed to be stressed in a balanced manner, the pressure-sensitive test paper is taken out and the plastic product is welded.
In the embodiment of the invention, pressure-sensitive test paper is placed at the upper end of the plastic upper layer 7, the bonding of the plastic upper layer 7 and the plastic lower layer 6 is subjected to pressure test through the transparent pressing plate 4, the applied pressure acts on the arc-shaped pressure-regulating plate 1 for fixing the plastic lower layer 6 below, the arc-shaped pressure-regulating plate 1 rolls on the hemispherical support 2 under the action of the pressure and finally keeps balance under the action of the spring 3, so that the bonding stress of the plastic upper layer 7 and the plastic lower layer 6 is balanced, the pressure-sensitive test paper is taken out and the plastic product is subjected to welding treatment after the stress balance of the plastic upper layer 7 is confirmed through observing the color change condition of the pressure-sensitive test paper, the pressure-sensitive test paper can be automatically regulated through the process, so that the stress between the plastic upper layer 7 and the plastic lower layer 6 is balanced, and a better welding effect is obtained, the yield and the production efficiency of the product are effectively improved.
On the basis of the above embodiment, referring to fig. 2, a schematic flow chart of an automatic pressure regulating method for laser welding according to the present invention is shown, where the automatic pressure regulating method for laser welding includes:
s101: placing a lower plastic layer in the supporting plate, and placing an upper plastic layer on the upper plastic layer in an overlapping manner;
s102: placing pressure-sensitive test paper at the upper end of the plastic upper layer, and carrying out pressure test on the joint of the plastic upper layer and the plastic lower layer through a transparent pressing plate;
s103: observing the color change condition of the pressure-sensitive test paper, after confirming that the stress of the upper layer of the plastic is balanced, stopping applying pressure by the transparent pressing plate, taking out the pressure-sensitive test paper, carrying out welding treatment on the plastic product, and removing the welded plastic product;
and 4, step 4: the above steps S101 to S103 are repeated.
The automatic pressure regulating clamp for laser welding according to the embodiment of the present invention can execute the automatic pressure regulating method for laser welding according to the embodiment of the present invention, and the automatic pressure regulating method for laser welding has corresponding functional modules and beneficial effects of the automatic pressure regulating clamp for laser welding.
In the above embodiments provided by the present invention, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the modules is merely a logical division, and other divisions may be realized in practice, for example, a plurality of modules or components may be combined or integrated into another system, or some features may be omitted, or not executed.
The modules described as separate parts may or may not be physically separate, and parts displayed as modules may or may not be physical modules, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing detailed description, or equivalent changes may be made in some of the features of the embodiments. All equivalent structures made by using the contents of the specification and the attached drawings of the invention can be directly or indirectly applied to other related technical fields, and are also within the protection scope of the patent of the invention.
Claims (10)
1. The utility model provides a laser welding automatic pressure regulating anchor clamps which characterized in that includes: the plastic frame comprises an arc-shaped pressure regulating plate, a spring, a hemispherical bracket, a transparent pressure plate, an upper plastic layer and a lower plastic layer;
the hemispherical support comprises a support frame and a base, the arc-shaped pressure regulating plate is arranged above the support frame, two ends of the arc-shaped pressure regulating plate are respectively fixed on the base through the springs, and the lower end of the support frame is fixedly arranged in the central area of the base; the lower end of the arc-shaped pressure regulating plate comprises an arc-shaped curved surface, the upper end of the supporting frame is a hemispherical surface, and the hemispherical surface is in contact with the arc-shaped curved surface; transparent clamp plate, plastics upper strata and plastics lower floor superpose from top to bottom in proper order and place arc pressure regulating plate top.
2. The automatic pressure regulating clamp for laser welding according to claim 1, characterized in that: two ends of the arc-shaped curved surface are flat connecting surfaces, and the two connecting surfaces are fixedly connected with the two springs respectively; the middle area of the upper end of the arc pressure regulating plate is provided with a groove.
3. The automatic pressure regulating clamp for laser welding according to claim 2, characterized in that: the semi-spherical surface and the arc-shaped curved surface are tangent on a straight line formed by the centers of the sphere where the semi-spherical surface and the arc-shaped curved surface are located, wherein the curvature radius of the arc-shaped curved surface is larger than the radius of the semi-spherical surface.
4. The automatic pressure regulating clamp for laser welding according to claim 2, further comprising a support plate, wherein the support plate is placed in the groove, and the length of the groove is matched with the length of the support plate.
5. The automatic pressure regulating clamp for laser welding according to claim 4, wherein: the supporting plate is formed by connecting a bottom plate and two fixing plates, the two fixing plates are respectively and vertically fixed on two sides of the bottom plate, the depth of the groove is larger than the height of the fixing plates, and the supporting plate is used for placing a plastic product to be welded.
6. The automatic pressure regulating clamp for laser welding according to claim 5, characterized in that: the plastic product is formed by welding an upper plastic layer and a lower plastic layer, the lower plastic layer is arranged in the supporting plate, the upper plastic layer is arranged on the supporting plate, and the bottom surface of the upper plastic layer is in contact with the top surface of the lower plastic layer and the top surface of the fixing plate.
7. The automatic pressure regulating clamp for laser welding according to claim 6, wherein: the top surface of the lower plastic layer and the top surface of the fixing plate are located on the same plane, and the top surface of the upper plastic layer protrudes out of the upper end of the arc-shaped pressure regulating plate.
8. The automatic pressure regulating clamp for laser welding according to claim 1, characterized in that: the transparent pressing plate is placed on the plastic upper layer, pressure-sensitive test paper is placed between the transparent pressing plate and the plastic upper layer, and the pressure-sensitive test paper is used for detecting the pressure condition of the plastic upper layer.
9. The automatic pressure regulating clamp for laser welding according to claim 8, wherein: the transparent pressing plate is made of transparent materials, and the color change condition of the pressure-sensitive test paper is obtained through the transparent pressing plate.
10. A method applied to the automatic pressure regulating clamp for laser welding of any one of claims 4 to 7, is characterized by comprising the following steps:
placing a lower plastic layer in the supporting plate, and placing an upper plastic layer on the upper plastic layer in an overlapping manner;
placing pressure-sensitive test paper at the upper end of the plastic upper layer, and carrying out pressure test on the joint of the plastic upper layer and the plastic lower layer through a transparent pressing plate;
observing the color change condition of the pressure-sensitive test paper, after confirming that the stress of the upper layer of the plastic is balanced, stopping applying pressure by the transparent pressing plate, taking out the pressure-sensitive test paper, carrying out welding treatment on the plastic product, and removing the welded plastic product;
and repeating the steps.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710244330.9A CN108724739B (en) | 2017-04-14 | 2017-04-14 | Automatic pressure regulating clamp and pressure regulating method for laser welding |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710244330.9A CN108724739B (en) | 2017-04-14 | 2017-04-14 | Automatic pressure regulating clamp and pressure regulating method for laser welding |
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| Publication Number | Publication Date |
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| CN108724739A CN108724739A (en) | 2018-11-02 |
| CN108724739B true CN108724739B (en) | 2020-10-02 |
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| CN201710244330.9A Active CN108724739B (en) | 2017-04-14 | 2017-04-14 | Automatic pressure regulating clamp and pressure regulating method for laser welding |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11819942B2 (en) | 2020-12-10 | 2023-11-21 | Magna International Inc. | Method and apparatus for applying an active joining force during laser welding of overlapping workpieces |
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| US4397028A (en) * | 1982-01-26 | 1983-08-02 | Owens-Corning Fiberglas Corporation | Electrode support mechanism |
| JP2004066252A (en) * | 2002-08-01 | 2004-03-04 | Shinko Kiki Kk | Electrode tip detaching tool for spot welding machine |
| CN203637162U (en) * | 2013-12-03 | 2014-06-11 | 浙江西盈科技有限公司 | Automatic pressure regulating mechanism of plastic product hot wire fusing machine |
| CN203818576U (en) * | 2014-03-20 | 2014-09-10 | 深圳市大族激光科技股份有限公司 | Plastic laser welding clamp |
| CN104385578A (en) * | 2014-09-25 | 2015-03-04 | 江苏大学 | High efficiency laser transmission connection clamping apparatus |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US9227265B2 (en) * | 2011-11-22 | 2016-01-05 | Thermacut, S.R.O. | Electrode-supporting assembly for contact-start plasma arc torch |
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2017
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4397028A (en) * | 1982-01-26 | 1983-08-02 | Owens-Corning Fiberglas Corporation | Electrode support mechanism |
| JP2004066252A (en) * | 2002-08-01 | 2004-03-04 | Shinko Kiki Kk | Electrode tip detaching tool for spot welding machine |
| CN203637162U (en) * | 2013-12-03 | 2014-06-11 | 浙江西盈科技有限公司 | Automatic pressure regulating mechanism of plastic product hot wire fusing machine |
| CN203818576U (en) * | 2014-03-20 | 2014-09-10 | 深圳市大族激光科技股份有限公司 | Plastic laser welding clamp |
| CN104385578A (en) * | 2014-09-25 | 2015-03-04 | 江苏大学 | High efficiency laser transmission connection clamping apparatus |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11819942B2 (en) | 2020-12-10 | 2023-11-21 | Magna International Inc. | Method and apparatus for applying an active joining force during laser welding of overlapping workpieces |
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| CN108724739A (en) | 2018-11-02 |
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