A coaxial SLD device laser welding strength test bench
By designing a laser welding strength test bench for coaxial SLD devices, tensile strength test of SLD devices is achieved using tensile gauge and driving components, the problem of no welding strength test after SLD is coupled with optical fiber in the prior art is solved, which improves product pass rate and reduces resource waste.
Patent Information
- Application Number
- CN202421110077.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-21
- Publication Date
- 2025-04-04
- Estimated Expiration
- 2034-05-21
AI Technical Summary
The prior art does not conduct welding strength tests after SLD is coupled with optical fiber during the SLD manufacturing process, resulting in large fluctuations in the pass rate when SLD devices are put into use, resulting in loss of company profits and waste of social resources.
A laser welding strength test bench for coaxial SLD devices is designed, and the two ends of the SLD device are fixed by clamping and fixing the upper and lower clamps. The driving components are used to drive the tensile gauge to move up and down in the vertical direction, driving the upper and lower clamps away from the lower clamps, and the tensile force magnitude is monitored in real time to achieve the test of the tensile strength of the SLD device.
Through the tensile strength test of SLD devices, the welding quality of SLD and optical fiber can be judged, thereby improving the product pass rate, reducing company profit loss and waste of social resources.
Smart Images
Figure CN222719316U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of superluminescent diode detection, and in particular to a coaxial SLD device laser welding strength test bench. Background Art
[0002] Superluminescent diode (SLD) is a semiconductor optoelectronic device with the characteristics of high output power and wide spectral width. It is suitable for optical coherence tomography (OCT) imaging systems and fiber optic gyroscopes (FOG), and is widely used in industrial, medical, and military fields.
[0003] In the manufacturing process of coaxial SLD, the quality of laser welding is an important factor that determines the performance of SLD. In the process of coupling with optical fiber, coaxial SLD uses laser welding to fix the coupling optical fiber and SLD tube body. The quality of laser welding directly affects the performance and subsequent use of the device. If the welding quality is not good, it is easy to cause displacement of the coupling optical fiber when encountering external force or changes in ambient temperature during subsequent use, which directly affects the performance and stability of the device.
[0004] In the prior art, there is no welding strength test for SLD after coupling with optical fiber during the SLD manufacturing process, which results in large fluctuations in the qualified rate of SLD devices when they are put into use, causing considerable loss of benefits to the company and waste of social resources. Therefore, it is necessary to design a coaxial SLD device laser welding strength test bench to perform strength test on the SLD device after welding, thereby improving the qualified rate of the product. Summary of the invention
[0005] The present application provides a coaxial SLD device laser welding strength test bench, which solves the problem that the prior art does not perform welding strength test on the SLD after coupling with the optical fiber during the SLD manufacturing process, resulting in large fluctuations in the qualified rate of the SLD device when it is put into use, causing considerable loss of benefits to the company and waste of social resources.
[0006] The present application provides a coaxial SLD device laser welding strength test bench, comprising a base plate, on which a lower clamp and a vertical plate are fixedly mounted, on which a driving component is mounted, a dynamometer is fixedly mounted on the output end of the driving component, an upper clamp is fixedly mounted on the test end of the dynamometer, and the driving component is used to drive the dynamometer to move up and down in a vertical direction, thereby driving the upper clamp to move toward or away from the lower clamp; the upper clamp is coaxially arranged with the lower clamp, and is used to cooperate in clamping and fixing the two ends of the SLD device.
[0007] In the technical solution provided in the present application, the two ends of the SLD device are clamped and fixed by an upper clamp cooperating with a lower clamp, and then the driving component drives the dynamometer to pull the upper clamp away from the lower clamp. The dynamometer monitors the magnitude of the pulling force applied to the upper clamp in real time, thereby realizing the test of the tensile strength of the SLD device. The welding quality of the SLD and the optical fiber can be judged according to the tensile strength of the SLD device.
[0008] In some embodiments, a guide assembly is installed on the vertical plate to constrain the upper fixture to move up and down in the vertical direction, thereby preventing the upper fixture from shaking laterally during the test, thereby affecting the test results.
[0009] In some embodiments, the guide assembly includes a vertical linear slide rail, a slide seat is slidably connected to the linear slide rail, and the back side of the slide seat is fixedly connected to the upper clamp.
[0010] In some embodiments, the driving component includes a linear motor, a pneumatic cylinder, or a hydraulic cylinder.
[0011] In some embodiments, the test bench includes a controller, which is connected to the tensile meter and the driving component respectively. When the tensile meter detects that the tension value reaches a set threshold or the tension value changes suddenly, the controller automatically controls the driving component to stop running, thereby realizing automated testing of the SLD device.
[0012] In some embodiments, the upper clamp and the lower clamp both include a mounting plate, a cylinder is fixed on the mounting plate, and a limit cylinder is coaxially mounted on the output end of the cylinder; a chuck is mounted on the end of the telescopic shaft of the cylinder, and the cylinder is used to drive the telescopic shaft to extend and retract, and drive the chuck to extend out of the limit cylinder to open or retract into the limit cylinder to clamp; when one end of the SLD device needs to be clamped, the telescopic shaft is extended by the cylinder to drive the chuck to extend out of the limit cylinder to open, and then the end of the SLD device is coaxially placed in the chuck, and then the telescopic shaft is driven by the cylinder to retract the limit cylinder to clamp the end of the SLD device.
[0013] In some embodiments, the chuck includes a clamping jaw, an elastic member and a connecting member connected in sequence, one end of the connecting member is connected to the telescopic shaft of the cylinder, and the other end is symmetrically provided with a plurality of elastic members, and a single elastic member is connected to a single clamping jaw; when the chuck is retracted into the limit cylinder, the elastic member and the clamping jaw are squeezed toward the center by the limit cylinder, thereby realizing the clamping function; when the chuck extends out of the limit cylinder, the elastic member and the clamping jaw open outward under the action of elastic recovery, so as to facilitate the placement or removal of the SLD device.
[0014] In some embodiments, a first positioning hole is radially opened through the outer wall of the connecting member, a second positioning hole is radially opened through the end of the telescopic shaft, the first positioning hole and the second positioning hole are connected by a pin, and a limiting groove is vertically opened on the outer wall of the limiting cylinder to cooperate with the pin, and the pin is inserted into the first positioning hole and the second positioning hole after passing through the limiting groove; by setting the limiting groove and the pin, it is convenient to limit the displacement of the chuck to avoid damaging the SLD device due to excessive clamping or inconvenience in taking and placing the SLD device due to excessive opening angle.
[0015] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] The drawings in this application are used to illustrate preferred embodiments, so that those skilled in the art can clearly understand various other advantages and benefits, and should not be considered as limitations of this application. In addition, the same reference numerals are used throughout the drawings to represent the same or similar components.
[0017] Figure 1 This is a structural schematic diagram of a coaxial SLD device laser welding strength test bench in one embodiment of the present application;
[0018] Figure 2 This is an exploded schematic diagram of a lower clamp in one embodiment of the present application;
[0019] Icons: 1. Base plate; 2. Lower fixture; 3. Vertical plate; 4. Driving component; 5. Tension gauge; 6. Upper fixture; 7. Linear slide rail; 8. Slide seat; 9. Mounting plate; 10. Cylinder; 11. Limit cylinder; 12. Telescopic shaft; 13. Clamp; 14. Elastic part; 15. Connecting part; 16. First positioning hole; 17. Second positioning hole; 18. Pin; 19. Limit groove. DETAILED DESCRIPTION
[0020] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with specific embodiments. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.
[0021] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.
[0022] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two (including two), unless otherwise clearly and specifically defined.
[0023] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of the associated objects, indicating that there may be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.
[0024] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the embodiments of the present application.
[0025] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.
[0026] See also Figure 1 , Figure 2The embodiment of the present application provides a coaxial SLD device laser welding strength test bench, including a base plate 1, on which a lower clamp 2 and a vertical plate 3 are fixedly installed, on which a driving component 4 is installed, and a dynamometer 5 is fixedly installed at the output end of the driving component 4, and an upper clamp 6 is fixedly installed at the test end of the dynamometer 5, and the driving component 4 is used to drive the dynamometer 5 to move up and down in the vertical direction, driving the upper clamp 6 to move toward or away from the lower clamp 2; the upper clamp 6 is coaxially arranged with the lower clamp 2, and is used to cooperate in clamping and fixing the two ends of the SLD device.
[0027] In the technical solution provided in the present application, the two ends of the SLD device are clamped and fixed by the upper clamp 6 in cooperation with the lower clamp 2, and then the driving component 4 drives the dynamometer 5 to pull the upper clamp 6 away from the lower clamp 2. The dynamometer 5 monitors the magnitude of the pulling force applied to the upper clamp 6 in real time, thereby realizing the test of the tensile strength of the SLD device. The welding quality of the SLD and the optical fiber can be judged according to the tensile strength of the SLD device.
[0028] In some embodiments, a guide assembly is installed on the vertical plate 3 to constrain the upper fixture 6 to move up and down in the vertical direction, thereby preventing the upper fixture 6 from shaking laterally during the test, thereby affecting the test results.
[0029] Please continue reading Figure 1 In some embodiments, the guide assembly includes a vertical linear slide rail 7, a slide seat 8 is slidably connected to the linear slide rail 7, and the back side of the slide seat 8 is fixedly connected to the upper clamp 6.
[0030] In some embodiments, the driving component 4 includes a linear motor, a cylinder or a hydraulic cylinder, which can be flexibly selected according to actual conditions during the specific implementation process.
[0031] In some embodiments, the test bench includes a controller, which is connected to the dynamometer 5 and the driving component 4 respectively. When the dynamometer 5 detects that the tension value reaches a set threshold or the tension value changes suddenly, the controller automatically controls the driving component 4 to stop running, thereby realizing automatic testing of the SLD device.
[0032] The dynamometer 5 in this embodiment is an electronic dynamometer, which can be a high-precision digital push-pull dynamometer of model YZL-500S, which can automatically alarm and output level signals, automatically store the tension data during the test, and automatically calculate the maximum, minimum and average values.
[0033] Please continue reading Figure 2In some embodiments, the upper clamp 6 and the lower clamp 2 both include a mounting plate 9, on which a cylinder 10 is fixed, and a limiting cylinder 11 is coaxially mounted on the output end of the cylinder 10; a chuck is mounted at the end of the telescopic shaft 12 of the cylinder 10, and the cylinder 10 is used to drive the telescopic shaft 12 to extend and retract, driving the chuck to extend out of the limiting cylinder 11 to open or retract into the limiting cylinder 11 to clamp; when one end of the SLD device needs to be clamped, the telescopic shaft 12 is extended by the cylinder 10, driving the chuck to extend out of the limiting cylinder 11 to open, and then the end of the SLD device is coaxially placed in the chuck, and then the telescopic shaft 12 is driven by the cylinder 10 to retract into the limiting cylinder 11 to clamp the end of the SLD device.
[0034] Please continue reading Figure 2 In some embodiments, the chuck includes a clamping jaw 13, an elastic member 14 and a connecting member 15 connected in sequence, one end of the connecting member 15 is connected to the telescopic shaft 12 of the cylinder 10, and the other end is symmetrically provided with a plurality of elastic members 14, and a single elastic member 14 is connected to a single clamping jaw 13; when the chuck is retracted into the limiting cylinder 11, the elastic member 14 and the clamping jaw 13 are squeezed toward the center by the limiting cylinder 11, thereby realizing the clamping function; when the chuck extends out of the limiting cylinder 11, the elastic member 14 and the clamping jaw 13 open outward under the action of elastic recovery, so as to facilitate the placement or removal of the SLD device.
[0035] Please continue reading Figure 2 In some embodiments, a first positioning hole 16 is radially opened on the outer wall of the connecting member 15, and a second positioning hole 17 is radially opened on the end of the telescopic shaft 12. The first positioning hole 16 and the second positioning hole 17 are connected by a pin 18. A limiting groove 19 cooperating with the pin 18 is vertically opened on the outer wall of the limiting cylinder 11. The pin 18 passes through the limiting groove 19 and is inserted into the first positioning hole 16 and the second positioning hole 17. By setting the limiting groove 19 and the pin 18, it is convenient to limit the displacement of the chuck to avoid damaging the SLD device due to excessive clamping or inconvenience in taking and placing the SLD device due to excessive opening angle.
[0036] It should be noted that, except for the different sizes of the chucks, the other components of the upper clamp 6 and the lower clamp 2 in this embodiment are exactly the same; wherein, the upper clamp 6 is used downward to clamp the optical fiber fixed end of the SLD device, and the lower clamp 2 is used upward to clamp the tube body of the SLD device; the upper clamp 6 and the lower clamp 2 in this application are prior art, and reference may be made to patent CN215616150U-A coaxial superluminescent diode gold wire ball welding clamp (this patent was applied for by the applicant on November 24, 2021, so no further elaboration on its structure and working principle is made in this application).
[0037] The working process of the test bench in this embodiment is as follows:
[0038] First, the dynamometer 5 is reset, and the dynamometer 5 is driven upward by the driving component 4. The dynamometer 5 will display the no-load tension, and the no-load tension can be cleared by pressing the clear parts button; then, the lower clamp 2 is controlled to open, and the tube end of the SLD device is placed into the clamp of the lower clamp 2, and the lower clamp 2 is controlled to clamp the tube end of the SLD device; then, the dynamometer 5 and the upper clamp 6 are driven downward by the driving component 4, and the upper clamp 6 is controlled to open, so that the optical fiber fixed end at the upper end of the SLD device is clamped into the clamp of the upper clamp 6, and the upper clamp 6 is controlled to open. The clamp 6 clamps the optical fiber end of the SLD device; then the driving component 4 drives the tensile gauge 5 to pull up evenly and slowly, and the tensile gauge 5 reads the tension value in real time. When the tension value reaches the set threshold (that is, the maximum tension value that meets the tensile test requirements), the driving component 4 is controlled to stop pulling up, that is, the SLD device meets the welding quality requirements; if during the test, the tension value drops sharply, indicating that the SLD pipe and the optical fiber are broken, the driving component 4 is controlled to stop pulling up, indicating that the SLD device does not meet the welding quality requirements.
[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, a person of ordinary skill in the art should understand that the technical solutions described in the aforementioned embodiments can still be modified, or some or all of the technical features therein can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no contradiction or conflict, the various technical features mentioned in the embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.
Claims
1. A coaxial SLD device laser welding strength test bench, characterized in that: The invention comprises a bottom plate (1), a lower clamp (2) and a vertical plate (3) are fixedly mounted on the bottom plate (1), a driving component (4) is mounted on the vertical plate (3), a dynamometer (5) is fixedly mounted on the output end of the driving component (4), an upper clamp (6) is fixedly mounted on the test end of the dynamometer (5), and the driving component (4) is used to drive the dynamometer (5) to move up and down in a vertical direction, thereby driving the upper clamp (6) to move in a direction close to or away from the lower clamp (2); the upper clamp (6) is coaxially arranged with the lower clamp (2) and is used to cooperate in clamping and fixing the two ends of the SLD device.
2. A coaxial SLD device laser welding strength test bench according to claim 1, characterized in that: A guide assembly is installed on the vertical plate (3) to constrain the upper clamp (6) to move up and down in the vertical direction.
3. A coaxial SLD device laser welding strength test bench according to claim 2, characterized in that: The guide assembly comprises a vertical linear slide rail (7), a slide seat (8) is slidably connected to the linear slide rail (7), and the back side of the slide seat (8) is fixedly connected to the upper clamp (6).
4. A coaxial SLD device laser welding strength test bench according to claim 1, characterized in that: The driving component (4) comprises a linear motor, a cylinder or a hydraulic cylinder.
5. The coaxial SLD device laser welding strength test bench according to claim 1, characterized in that: The test bench comprises a controller, and the controller is respectively connected to a dynamometer (5) and a driving component (4).
6. A coaxial SLD device laser welding strength test bench according to claim 1, characterized in that: The upper clamp (6) and the lower clamp (2) both comprise a mounting plate (9), a cylinder (10) being fixed on the mounting plate (9), and a limiting cylinder (11) being coaxially mounted on the output end of the cylinder (10); a clamping head is mounted on the end of the telescopic shaft (12) of the cylinder (10), and the cylinder (10) is used to drive the telescopic shaft (12) to extend and retract, thereby driving the clamping head to extend out of the limiting cylinder (11) to open or retract into the limiting cylinder (11) to clamp.
7. A coaxial SLD device laser welding strength test bench according to claim 6, characterized in that: The clamping head comprises a clamping jaw (13), an elastic member (14) and a connecting member (15) which are connected in sequence. One end of the connecting member (15) is connected to the telescopic shaft (12) of the cylinder (10), and the other end is symmetrically provided with a plurality of elastic members (14), and a single elastic member (14) is connected to a single clamping jaw (13).
8. The coaxial SLD device laser welding strength test bench according to claim 7, characterized in that: The outer wall of the connecting member (15) is provided with a first positioning hole (16) extending through the connecting member (15) in the radial direction, and the end of the telescopic shaft (12) is provided with a second positioning hole (17) extending through the connecting member (15) in the radial direction. The first positioning hole (16) and the second positioning hole (17) are connected via a latch (18). The outer wall of the limiting cylinder (11) is provided with a limiting groove (19) vertically arranged to cooperate with the latch (18). The latch (18) passes through the limiting groove (19) and is then inserted into the first positioning hole (16) and the second positioning hole (17).