Device for assisting in connecting and fixing glass tube and metal end in light-gathering cavity

Abstract

The utility model provides a device for assisting in connecting and fixing a glass tube and a metal end in a light-gathering cavity. The device comprises the metal end, a supporting and positioning part, the glass tube, a clamping sleeve and a positioning cap. The metal end comprises a first through hole and a second through hole, and the aperture of the first through hole is larger than that of the second through hole; the first through hole and the second through hole are concentric with the glass tube, and the first through hole is communicated with the second through hole; the aperture of the second through hole is consistent with that of the glass tube; the supporting and positioning part comprises a supporting and positioning base and a supporting and positioning rod, the supporting and positioning rod is connected to the supporting and positioning base, the supporting and positioning base is sleeved with the first through hole, and the supporting and positioning rod upwards penetrates through the second through hole; the glass tube can be arranged in the supporting positioning rod in a sleeved mode, and the clamping sleeve is arranged in a gap between the glass tube and the second through hole in a sleeved mode and used for assisting concentric positioning of the glass tube and the metal end. The positioning cap sleeves the upper ends of the glass tube and the supporting positioning rod and is used for assisting concentric positioning of the glass tube and the supporting positioning rod.

Description

Technical Field

[0001] This utility model relates to the field of laser device technology, and more specifically, to a device for connecting and fixing a glass tube inside a focusing cavity to a metal end. Background Technology

[0002] This invention relates to an auxiliary device for connecting and fixing the end of a glass tube within a focusing cavity, belonging to the fields of laser technology and glass tube clamp technology. With the continuous development of laser technology, lasers have been widely used in numerous fields such as industrial processing, medicine, scientific research, and communications. A laser mainly consists of six parts, including a laser medium, a pump source, a resonant cavity, a mirror, optical elements, and a cooling system. The laser medium, as a core component of the laser, is crucial for generating laser light. Laser media are generally solid, liquid, or gaseous, and can generate photons when stimulated by energy, thus forming laser light.

[0003] Laser media generate a significant amount of heat during operation, which can affect their normal function. Water cooling is a common heat dissipation method, and glass, as a light-transmitting material, is often used for water cooling and sealing. The glass tube within the focusing cavity should not be too large and needs to connect two end faces, requiring sealing at the connection point. Common sealing methods include O-ring seals and adhesive sealants. High concentricity between the glass rod and the through holes on the two end faces is crucial during sealing, and currently, assembly is primarily manual. During installation, one side must be fixed before the other, which often leads to breakage due to misalignment of the first side when fixing the second side. Even if the two end faces are successfully assembled, internal deformation during subsequent screw fixing in other locations can cause hard contact between the glass tube end face and the metal part end face, resulting in breakage. Because the glass tube is small, thin-walled, and fragile, a dedicated auxiliary positioning device is needed to reduce the probability of breakage during installation. Utility Model Content

[0004] The purpose of this invention is to provide a device for connecting and fixing the glass tube inside the focusing cavity to the metal end, aiming to solve the problem of high-precision concentricity assembly during the glass tube installation process.

[0005] Specifically, the technical solution of this utility model is as follows: a device for connecting and fixing the glass tube and the metal end in the focusing cavity is proposed, including: a metal end, a support and positioning part, a glass tube, a ferrule and a positioning cap;

[0006] The metal end includes a first through hole and a second through hole. The diameter of the first through hole is larger than the diameter of the second through hole. The first through hole and the second through hole are concentrically arranged with the glass tube, and the first through hole and the second through hole are connected. The diameter of the second through hole is the same as the diameter of the glass tube.

[0007] The support and positioning part includes a support and positioning base and a support and positioning rod. The support and positioning rod is connected to the support and positioning base. The support and positioning base is fitted into the first through hole. The support and positioning rod passes upward through the second through hole.

[0008] The glass tube can be fitted into the support positioning rod, and the ferrule is fitted into the gap between the glass tube and the second through hole to assist in the concentric positioning of the glass tube and the metal end.

[0009] The positioning cap is fitted onto the upper end of the glass tube and the supporting positioning rod to assist in the concentric positioning of the glass tube and the supporting positioning rod. The interior of the positioning cap is designed with a stepped structure, including a first step and a second step, which are connected. The upper part of the first step abuts against the upper end of the supporting positioning rod, and the second step abuts against the upper end of the glass tube. A washer is provided at the upper end of the glass tube, and the second step abuts against the washer.

[0010] As a preferred technical solution, it also includes positioning clamps, which include two clamps symmetrically arranged on both sides of the positioning cap; the positioning clamps abut against the surface of the glass tube.

[0011] As a preferred technical solution, the positioning fixture includes a protective plate and screws connected to the protective plate, and the screws are screwed inward to fix the protective plate to the glass tube.

[0012] As a preferred technical solution, the positioning clamp is located between the glass tube and the positioning cap.

[0013] As a preferred technical solution, the positioning cap has two symmetrically arranged openings, and the screw of the positioning clamp can pass through the openings with the protective plate and enter the gap between the positioning cap and the glass tube.

[0014] As a preferred technical solution, a sealing opening is provided at the bottom of the positioning fixture. The sealing opening is threaded, and correspondingly, the lower edge of the positioning cap is threaded. The sealing opening is moved upward and screwed to connect to the lower end of the positioning cap. The sealing opening is used to prevent the positioning fixture from sliding down due to gravity.

[0015] As a preferred technical solution, it also includes an adjusting screw, which is located on the top of the positioning cap. The top of the positioning cap is provided with an adjusting thread, and the adjusting screw is connected to the adjusting thread.

[0016] As a preferred technical solution, it also includes a set screw, which is located above the positioning fixture. The set screw passes through the positioning cap and can abut against the surface of the supporting positioning rod to fix the positioning cap and the supporting positioning rod.

[0017] As a preferred technical solution, the top of the positioning cap is provided with a scale, and the top of the adjusting screw is provided with a pointer.

[0018] As a preferred technical solution, the adjusting screw includes a nut, a threaded section and an extension section, the extension section extending downward into the support positioning rod; the diameter of the threaded section is larger than the diameter of the extension section, and a washer is provided below the threaded section.

[0019] The beneficial effects of this utility model are:

[0020] (1) In this utility model, the support positioning rod is passed through the round hole of the metal end. At this time, the glass tube is put into the upper end of the support positioning rod, the ferrule is placed in the gap between the glass tube and the metal end, and the positioning cap is put on the glass tube and the support positioning rod. The set screw is screwed in to bind the positioning cap, the two retaining rings and the glass tube together. At this time, the through hole of the glass tube and the metal end are concentric.

[0021] (2) Tighten the adjusting screws. The glass tube can be raised by 0.1mm-0.2mm using the top support adjusting rod. After confirming the height, seal it with glue. This creates a certain gap between the glass tube and the metal end, which effectively reduces vibration and prevents the glass from shattering. After connecting the glass tube to the metal end, remove the auxiliary device in reverse order. At this point, the high-precision positioning of the glass tube is complete. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the structure of a device for connecting and fixing the glass tube inside the focusing cavity to the metal end, as proposed in an embodiment of this utility model.

[0024] Figure 2 A cross-sectional schematic diagram of a device for connecting and fixing the glass tube inside the focusing cavity to the metal end, as proposed in an embodiment of this utility model;

[0025] Figure 3 A top view of a device for connecting and fixing a glass tube inside a focusing cavity to a metal end, as proposed in an embodiment of this utility model;

[0026] Figure 4 This is a schematic diagram of the protective plate structure of the positioning clamp proposed in an embodiment of the present utility model;

[0027] Figure 5 This is a schematic diagram of the connection structure between the adjusting screw, the positioning cap, and the supporting positioning rod according to an embodiment of this utility model.

[0028] Explanation of reference numerals in the attached drawings: 1. Metal end; 101. First through hole; 102. Second through hole; 21. Support positioning base; 22. Support positioning rod; 3. Glass tube; 4. Positioning cap; 5. Positioning clamp; 51. Protective plate; 52. Screw; 6. Adjusting screw; 61. Nut; 62. Threaded section; 63. Extension section; 7. Set screw; 8. Sealing end; 9. Scale; 10. Pointer; 11. Sleeve; 12. Washer. Detailed Implementation

[0029] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided to make this application more comprehensive and complete, and to fully convey the concept of the exemplary embodiments to those skilled in the art.

[0030] Furthermore, the described features, structures, or characteristics can be combined in any suitable manner in one or more embodiments. Numerous specific details are provided in the following description to give a thorough understanding of embodiments of this application. However, those skilled in the art will recognize that the technical solutions of this application can be practiced without one or more of the specific details, or other methods, components, apparatuses, steps, etc., can be employed. In other instances, well-known methods, apparatuses, implementations, or operations are not shown or described in detail to avoid obscuring various aspects of this application.

[0031] The block diagrams shown in the accompanying drawings are merely functional entities and do not necessarily correspond to physically independent entities. That is, these functional entities can be implemented in software, in one or more hardware modules or integrated circuits, or in different network and / or processor devices and / or microcontroller devices.

[0032] The flowcharts shown in the accompanying drawings are merely illustrative and do not necessarily include all content and operations / steps, nor do they necessarily have to be performed in the described order. For example, some operations / steps can be broken down, while others can be combined or partially combined; therefore, the actual execution order may change depending on the specific circumstances.

[0033] It should be noted that "multiple" as mentioned in this article refers to two or more.

[0034] Example

[0035] like Figure 1-2 As shown, this embodiment proposes a device for connecting and fixing the glass tube 3 inside the focusing cavity to the metal end 1, which includes: metal end 1, support and positioning part, glass tube 3, ferrule 11 and positioning cap 4.

[0036] The metal end 1 includes a first through hole 101 and a second through hole 102. The diameter of the first through hole 101 is larger than the diameter of the second through hole 102. The first through hole 101 and the second through hole 102 are concentrically arranged with the glass tube 3, and the first through hole 101 and the second through hole 102 are connected. The diameter of the second through hole 102 is the same as the diameter of the glass tube 3. In practice, when the glass tube 3 is externally connected to the metal end 1, it is necessary to ensure concentricity. Furthermore, to improve the pressure resistance and shock absorption effect, a certain gap is required at the connection point before applying adhesive for fixation.

[0037] The support and positioning part includes a support and positioning base 21 and a support and positioning rod 22. The support and positioning rod 22 is connected to the support and positioning base 21, which fits into the first through hole 101. The support and positioning rod 22 passes upward through the second through hole 102 and protrudes from the metal end 1. The support and positioning rod 22 is cylindrical. At this time, the support and positioning rod 22 and the metal end 1 are concentrically arranged.

[0038] The glass tube 3 can be fitted into the support positioning rod 22, and the ferrule 11 is fitted into the gap between the glass tube 3 and the second through hole 102 to assist in the concentric positioning of the glass tube 3 and the metal end 1.

[0039] A positioning cap 4 is fitted onto the upper end of the glass tube 3 and the supporting positioning rod 22 to assist in the concentric positioning of the glass tube 3 and the supporting positioning rod 22. The positioning cap 4 has a stepped structure inside, including a first step and a second step, which are connected. The upper part of the first step abuts against the upper end of the supporting positioning rod 22, and the second step abuts against the upper end of the glass tube 3. A washer 12 is provided at the upper end of the glass tube 3, and the second step abuts against the washer 12. This abutting against the washer 12 reduces the risk of the glass tube 3 breaking due to vibration.

[0040] Preferred, such as Figure 5 As shown, it also includes positioning clamps 5, of which two are symmetrically arranged on both sides of the positioning cap 4. The positioning clamps 5 are used to align and fix the positioning cap 4 and the glass tube 3 to their respective positions. The positioning clamps 5 abut against the surface of the glass tube 3. Furthermore, a silicone layer may be provided on the contact surface between the positioning clamps 5 and the glass tube 3.

[0041] Preferred, such as Figure 4 As shown, the positioning clamp 5 includes a protective plate 51 and screws 52 connected to the protective plate 51. The screws 52 are screwed inward to fix the protective plate 51 to the glass tube 3. The positioning clamp 5 is located between the glass tube 3 and the positioning cap 4.

[0042] Preferably, the positioning cap 4 has two symmetrically arranged openings, and the screw 52 of the positioning clamp 5 can pass through the openings with the protective plate 51 and enter the gap between the positioning cap 4 and the glass tube 3.

[0043] As not shown in the figure, the positioning clamp 5 can also be set as an integral piece, and the clamp can be tightened inward by tightening the screw 52 on one side to achieve concentric fixation.

[0044] The above achieves concentric fixation of glass tube 3 and positioning cap 4. Their relative positions are stationary.

[0045] Preferred, such as Figure 5 As shown, a sealing opening 8 is provided below the positioning fixture 5. The sealing opening 8 has threads, and correspondingly, the lower edge of the positioning cap 4 has threads. The sealing opening 8 is moved upward and screwed to connect to the lower end of the positioning cap 4. The sealing opening 8 is used to prevent the positioning fixture 5 from sliding down due to gravity.

[0046] For the best options, please continue to refer to them. Figure 5 It also includes an adjusting screw 6, which is located on the top of the positioning cap 4. The positioning cap 4 has an adjusting thread on its top, and the adjusting screw 6 connects to the adjusting thread. Because adhesive needs to be applied at the contact point between the glass tube 3 and the metal end 1, in order to improve the service life of the glass tube 3 and reduce the occurrence of breakage, a certain gap is left between the contact points of the glass tube 3 and the metal end 1, and adhesive is applied at this gap. Therefore, the adjusting screw 6 is designed to create a gap of 0.1mm-0.2mm between the glass tube 3 and the metal end face while ensuring concentricity.

[0047] Specifically, such as Figure 3 As shown, the top of the positioning cap 4 has a scale 9, and the top of the adjusting screw 6 has a pointer 10. The adjusting screw 6 is designed with an M6 thread with a pitch of 0.2. When the adjusting screw 6 is turned one turn, the positioning cap 4 will move the glass tube 3 upward by 0.2mm. If it is turned half a turn, the positioning cap 4 will move the glass tube 3 upward by 0.1mm.

[0048] Preferred, such as Figure 5 As shown, the adjusting screw 6 includes a nut 61, a threaded section 62, and an extension section 63. The extension section 63 extends downward into the support positioning rod 22. The diameter of the threaded section 62 is larger than the diameter of the extension section 63, and a washer 12 is provided below the threaded section 62. Thus, when the positioning cap 4 and the glass tube 3 are fixed together, turning the adjusting screw 6 will push the screw downward against the support positioning rod 22. Since the support positioning rod 22 is fixed relative to the ground, turning the adjusting screw 6 will push the positioning cap 4 and the glass tube 3 upward, thereby raising the glass tube 3.

[0049] Preferably, the device also includes a set screw 7, which is positioned above the positioning clamp 5. The set screw 7 passes through the positioning cap 4 and abuts against the surface of the supporting positioning rod 22 to fix the positioning cap 4 and the supporting positioning rod 22. That is, when the glass tube 3 is raised to a certain height, the positioning cap 4 and the supporting positioning rod 22 are fixed together by the set screw 7. At this time, the supporting positioning rod 22 and the positioning cap 4, and the positioning cap 4 and the glass tube 3 are concentrically fixed.

[0050] The specific implementation method is as follows:

[0051] (1) Pass the support positioning rod 22 through the round hole of the metal end 1. Then, put the glass tube 3 into the upper end of the support positioning rod 22 and put the ferrule 11 into the gap between the glass tube 3 and the metal end 1 to achieve initial concentric positioning.

[0052] (2) Then put the positioning cap 4 on the glass tube 3 and the support positioning rod 22. The positioning clamp 5 binds the positioning cap 4 and the glass tube 3 together. At this time, the glass tube 3 and the through hole of the metal end 1 are concentric.

[0053] (3) Tighten the adjusting screw 6 to raise the glass tube 3 by 0.1mm-0.2mm, and fix the positioning cap 4 to the support positioning rod 22 by using the set screw 7. This achieves concentric fixation between the support positioning rod 22 and the positioning cap 4, and between the positioning cap 4 and the glass tube 3.

[0054] (4) Seal and fix: Apply glue to the gap between the glass tube 3 and the metal end 1 to connect and fix.

[0055] (5) Finally, the auxiliary device is removed in reverse order. At this point, the high-precision positioning and fixing of the glass tube 3 has been completed.

[0056] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above description is only a specific embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. An apparatus for assisting the connection and fixation of a glass tube in a light collecting cavity with a metal end, characterized in that, It includes: Metal end, support positioning part, glass tube, sleeve and positioning cap; The metal end includes a first through hole and a second through hole, the diameter of the first through hole is larger than that of the second through hole; the first through hole and the second through hole are arranged concentrically with the glass tube, and the first through hole is arranged in communication with the second through hole; the diameter of the second through hole is consistent with the size of the diameter of the glass tube; The support positioning part includes a support positioning base and a support positioning rod, the support positioning rod is connected to the support positioning base, the support positioning base is fitted into the first through hole, and the support positioning rod passes through the second through hole upwardly; The glass tube can be fitted into the support positioning rod, the sleeve is fitted between the gap between the glass tube and the second through hole, and the sleeve is used for assisting the concentric positioning of the glass tube and the metal end; The positioning cap is fitted on the upper end of the glass tube and the support positioning rod, and is used for assisting the concentric positioning of the glass tube and the support positioning rod; the inside of the positioning cap is provided in a stepped structure, including a first step and a second step, the first step and the second step are in communication, the upper part of the first step abuts against the upper end of the support positioning rod, the second step abuts against the upper end of the glass tube, and the upper end of the glass tube is provided with a ring of gasket, and the second step abuts against the gasket.

2. A device for assisting in the fixing of a glass tube to a metal end piece in a light collection cavity according to claim 1, characterized in that It also includes a positioning clamp, the positioning clamp includes two, and is symmetrically arranged on both sides of the positioning cap; the positioning clamp abuts against the surface of the glass tube.

3. A device for assisting the connection and fixing of a glass tube to a metal end piece in a light collecting cavity according to claim 2, characterized in that The positioning clamp includes a guard plate and a screw connected to the guard plate, and the screw is screwed inwardly to fix the guard plate and the glass tube.

4. A device for assisting the connection and fixing of a glass tube to a metal end piece in a light collecting cavity according to claim 3, characterized in that The positioning clamp is arranged between the gap between the glass tube and the positioning cap.

5. A device for assisting the fixing of a glass tube to a metal end piece in a light collection cavity according to claim 4, characterized in that The positioning cap is provided with two openings arranged symmetrically, the screw of the positioning clamp can pass through the opening with the guard plate, and enter the gap between the positioning cap and the glass tube.

6. A device for assisting the connection and fixing of a glass tube to a metal end piece in a light collecting cavity according to claim 5, characterized in that The positioning clamp is provided below a sealing cap, the sealing cap is provided with a thread, correspondingly, the lower end edge of the positioning cap is provided with a thread, the sealing cap is moved upwardly and screwed, and is connected to the lower end of the positioning cap; the sealing cap is used for preventing the positioning clamp from sliding downwardly due to gravity.

7. A device for assisting the connection and fixation of a glass tube to a metal end piece in a light collecting cavity according to claim 2, characterized in that It also includes an adjusting screw, the adjusting screw is arranged on the top of the positioning cap, the top of the positioning cap is provided with an adjusting thread, and the adjusting screw is connected with the adjusting thread.

8. A device for assisting the fixing of a glass tube to a metal end piece in a light collection cavity according to claim 7, characterized in that, The top of the positioning cap is provided with a scale, and the top of the adjusting screw is provided with a pointer.

9. A device for assisting the fixing of a glass tube to a metal end piece in a solar cavity receiver according to claim 8, characterized in that The adjusting screw includes a nut, a threaded segment and an extension segment, the extension segment extends downwardly into the support positioning rod; the diameter of the threaded segment is larger than that of the extension segment, and a ring of gasket is arranged below the threaded segment.

10. A device for assisting the fixing of a glass tube to a metal end piece in a light collection cavity according to any one of claims 2 to 9, characterised in that, It also includes a top wire, the top wire is arranged above the positioning clamp, the top wire passes through the positioning cap and can abut against the surface of the support positioning rod, and is used for fixing the positioning cap and the support positioning rod.

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