Temperature control device for laser welding of plate glass
By designing a temperature control device for laser welding of flat glass, a U-shaped heating pipe and temperature sensor are used to achieve uniform preheating and annealing, solving the problem of uneven preheating and annealing in laser welding, reducing thermal stress cracks, and improving the accuracy of temperature control and welding effect.
Patent Information
- Application Number
- CN202423228918.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-26
- Publication Date
- 2025-12-19
- Estimated Expiration
- 2034-12-26
AI Technical Summary
In existing technologies, uneven preheating and annealing, along with poor temperature accuracy, lead to thermal stress and cracking during laser welding of flat glass.
A temperature control device consisting of a front mold, a rear mold, heat insulation cotton, front and rear plates, a rotating shaft, and a bottom fixing component was designed. Uniform preheating and annealing are achieved through a U-shaped reciprocating heating pipe and a temperature sensor, and the welding morphology is observed by a CCD camera.
Uniform preheating and annealing were achieved during the laser welding of flat glass, reducing thermal stress cracks and improving the accuracy of temperature control and the observation of welding results.
Smart Images
Figure CN223688239U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to experimental auxiliary equipment technical field, concretely relates to a laser welding temperature control device. BACKGROUND
[0002] Laser welding is the most promising welding mode in the 21st century. Laser welding technology has a wide range of applications in material processing and manufacturing fields, especially in high-precision industries such as aerospace, optoelectronics, medical devices, and plays an important role.
[0003] With the rapid development of laser welding technology, the scenarios in which laser welding technology is used are becoming more and more widespread, and laser welding flat glass is one of them. Laser welding flat glass and its placement cooling process will produce cracks due to thermal stress. Usually, preheating or annealing is used to eliminate cracks caused by thermal stress. Usually, an external heat source is used to preheat or anneal the flat glass, but this method is not uniform and has poor processing temperature accuracy. In order to achieve the preheating and annealing requirements of laser welding flat glass, solve the problem of crack generation during the laser welding flat glass and cooling process, a laser welding flat glass temperature control system suitable for the laser welding experiment platform is designed. SUMMARY
[0004] (1) Technical problem to be solved
[0005] In view of the above shortcomings of the prior art, the utility model provides a temperature control device in the process of laser welding, which is used to solve the problems of preheating, annealing and the like in the process of laser welding flat glass, and is suitable for the special requirements of the laser welding experiment platform. A temperature control device capable of preheating and annealing is provided, so as to eliminate the cracks caused by thermal stress in the process of laser welding flat glass.
[0006] (2) Technical scheme
[0007] In view of the above shortcomings of the prior art, the utility model provides a temperature control device for laser welding flat glass, which solves the problems of uneven and inaccurate preheating and annealing of glass in the prior art. In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:
[0008] The utility model provides a temperature control device for laser welding flat glass technology, which comprises a front mold, a rear mold, front heat insulation cotton, rear heat insulation cotton, a front plate, a rear plate, a rotating shaft, a bottom fixing part, an L-shaped fixing plate and other components that constitute the main frame of the temperature control system for laser welding flat glass. The bottom fixing part is connected to the left and right sides of the rear mold through punching and threading, and is fixed and supported on an experimental platform to fix the entire temperature control device. The rotating shaft is uniformly provided with a plurality of threaded holes, and is fixed to the right sides of the front and rear molds through threading. The front and rear molds are connected through the rotating shaft as a hinge, and the left sides thereof are opened and closed at a certain angle. The switch handle-1 and the switch handle-2 are connected to the protruding circular parts of the front and rear molds through punching and threading. The switch handle-1 is located on the front mold, and the switch handle-2 is located on the rear mold. The two switch handles are vertically staggered and connected through bolts.
[0009] The utility model discloses a temperature control device for laser welding flat glass technology, which comprises a front mold, a rear mold, front heat insulation cotton, rear heat insulation cotton, a front plate, a rear plate, a rotating shaft, a bottom fixing part, an L-shaped fixing plate and other components that constitute the main frame of the temperature control system for laser welding flat glass. The bottom fixing part is connected to the left and right sides of the rear mold through punching and threading, and is fixed and supported on an experimental platform to fix the entire temperature control device. The rotating shaft is uniformly provided with a plurality of threaded holes, and is fixed to the right sides of the front and rear molds through threading. The front and rear molds are connected through the rotating shaft as a hinge, and the left sides thereof are opened and closed at a certain angle. The switch handle-1 and the switch handle-2 are connected to the protruding circular parts of the front and rear molds through punching and threading. The switch handle-1 is located on the front mold, and the switch handle-2 is located on the rear mold. The two switch handles are vertically staggered and connected through bolts.
[0010] Further, the front and rear molds constitute the whole of the processing part of the temperature control device, and a window is formed in the middle of the front and rear molds. A rectangular window is formed in the center of the outer side of the front and rear molds, which is inclined outward at a certain angle. The position of the laser spot and the spreading degree of the solder can be observed by using a CCD camera. The front and rear heat insulation cottons inside the front and rear molds are fixed by the L-shaped fixing plate through punching and positioning. The outer sides of the front and rear heat insulation cottons are tightly attached to the inner sides of the molds.
[0011] The utility model discloses a temperature control device for laser welding flat glass technology, which comprises a front mold, a rear mold, front heat insulation cotton, rear heat insulation cotton, a front plate, a rear plate, a rotating shaft, a bottom fixing part, an L-shaped fixing plate and other components that constitute the main frame of the temperature control system for laser welding flat glass. The bottom fixing part is connected to the left and right sides of the rear mold through punching and threading, and is fixed and supported on an experimental platform to fix the entire temperature control device. The rotating shaft is uniformly provided with a plurality of threaded holes, and is fixed to the right sides of the front and rear molds through threading. The front and rear molds are connected through the rotating shaft as a hinge, and the left sides thereof are opened and closed at a certain angle. The switch handle-1 and the switch handle-2 are connected to the protruding circular parts of the front and rear molds through punching and threading. The switch handle-1 is located on the front mold, and the switch handle-2 is located on the rear mold. The two switch handles are vertically staggered and connected through bolts.
[0012] Further, the front and rear heat insulation cottons are the front and rear plates. The front and rear plates are matched with the front and rear heat insulation cottons on the outer layer through interference fit. The front and rear plates are internally provided with U-shaped reciprocating heating pipes and temperature sensors. The cylindrical power lines are integrally designed with the front and rear plates. After being powered on, the cylindrical power lines are used for heating and real-time feedback of preheating and annealing temperature. The temperature is regulated and controlled.
[0013] The utility model discloses beneficial effect is: current passes through the cylindrical electric wire of front, rear plate outside enters the U type heating pipeline of inside to and fro, thereby plays the role of the even preheating or annealing of flat glass.
[0014] Further, the middle of the front and rear plates is the flat glass clamped by the front section of the glass clamp, and the front and rear plates have sufficient space, facilitating the movement of the flat glass under heating during the welding process. The rear end is connected to the support column through punching, facilitating the outward movement of the glass plate clamped by the glass clamp.
[0015] The utility model discloses beneficial effect is: support column and the displacement stage of experimental platform cooperate, and the flat glass is moved into the front and rear plates through the displacement stage of laboratory platform. And can move in the inside of front and rear plates, so that the flat glass can be heated evenly.
[0016] (3) beneficial effect
[0017] The temperature control device for laser welding flat glass can realize preheating and annealing of laser welding flat glass. Compared with the original preheating device for heating flat glass, it can realize uniform annealing and preheating of flat glass. By heating the U-shaped heating pipeline inside the front and rear plates, the flat glass located in the middle of the front and rear plates can be uniformly preheated. And during the welding process, the temperature can be fed back in real time through the temperature sensor. A window is provided for observing the welding appearance of the flat glass, and the welding appearance can be observed in real time. Whether from the uniformity of preheating or annealing or from the design aspect, it is more excellent. BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1 is the front view three-dimensional drawing of the utility model;
[0019] Figure 2 is the side view three-dimensional drawing of the utility model;
[0020] Figure 3 is the sectional view three-dimensional drawing of the utility model; Figure Three
[0021] Figure 4 is the top view three-dimensional drawing of the utility model;
[0022] Figure 5 is the perspective three-dimensional drawing of the utility model.
[0023] Wherein: 1 temperature control display, 2 electric wire, 3 bottom fixing part, 4 front mold, 5 front heat insulation cotton, 6 support column, 7 switch handle-1, 8 front plate, 9 rear heat insulation cotton, 10 rear mold, 11 L type fixed plate, 12 rotating shaft, 13 glass clamp, 14 rear plate, 15 flat glass, 16 switch handle-2. DETAILED DESCRIPTION
[0024] The specific embodiments of the present application are described below to enable those skilled in the art to understand the present application, but it should be clear that the present application is not limited to the scope of the specific embodiments, and for those skilled in the art, as long as various changes are within the spirit and scope of the present application defined and determined by the appended claims, these changes are obvious, and all the utility model creations using the concept of the present application are within the scope of protection.
[0025] Please refer to Figures 1-5 As Figures 1-4 shown, it is a three-dimensional graph of the present application for observing different directions, Figure 5 It is a three-dimensional graph of the present application.
[0026] As Figure 1 shown, the control part of the temperature control device for laser welding flat glass is composed of temperature control display 1 and electric wire 2. It is mainly used for starting and stopping the temperature control system of laser welding flat glass and setting and feeding back the preheating or annealing temperature.
[0027] As Figure 2 shown, the processing part of the temperature control device for laser welding flat glass is composed of front plate 8, rotating shaft 12, rear heat insulation cotton 9, front mold 4, rear mold 10, front heat insulation cotton 5, bottom fixing part 9, switch handle-1 7, switch handle-2 16, L-shaped fixing plate 11 and rear plate 14. The front mold 4 is fixed on one side of the bottom fixing part 3 through threaded connection, and the other side is fixed with the laser welding experiment platform. The switch handle-1 7 and the switch handle-2 16 are connected and fixed with the protruding rectangular parts of the front and rear molds, and the two switch handles are placed upside down to realize the opening and closing of the whole device. The U-shaped reciprocating heating pipe is wrapped by the front and rear plates, and connected with the electric wire through the cylindrical interface outside the front and rear plates. The front and rear plates are wrapped by the front and rear heat insulation cotton, and the two are interference fit, and the front and rear heat insulation cotton is fixed in the front and rear molds by bolt connection, and the other contact parts are interference fit.
[0028] As Figure 3 shown, the clamping part of the flat glass has flat glass 15, support column 6 and glass clamp 13. One side of the support column 6 is installed on the displacement table of the laser welding experiment table, and the other side is installed on the glass clamp 13, which is used to move the glass plate and the glass clamp out of the temperature control device. The glass clamp 13 clamps and fixes the flat glass 15, which is convenient for uniform preheating or annealing of the flat glass.
[0029] In one embodiment, first, as Figure 4As shown, the rear mold 10 is opened outwards using switch handles-1 7 and-2 16. Then, the flat glass clamping part is moved to the inclined window position of the front mold using the displacement stage of the laser welding experimental table. This part can be obtained by setting the movement distance of the displacement platform. This allows the laser to act on the flat glass 15. The front and rear molds 10 are then closed using switch handle-2 16.
[0030] like Figure 5 As shown, the preheating or annealing temperature is set on the temperature control display 1. Current is conducted through cylindrical connecting wires to the U-shaped reciprocating heating pipes on the front and rear panels and the temperature sensor to achieve preheating or annealing. The front insulation cotton 5 and rear insulation cotton 9 are mainly used to absorb heat during preheating, reducing heat conduction to the front and rear molds and lowering the overall temperature of the device. Through real-time monitoring and feedback from the temperature sensor, after preheating to the target temperature, space is left between the front and rear panels during laser welding to facilitate laser welding of the flat glass during movement. After the laser treatment ends, the temperature on the temperature control display 1 is gradually reduced for annealing. The target annealing temperature is reached through real-time feedback from the temperature sensor. After annealing, the rear mold is opened and the clamping part of the flat glass is removed. Throughout the laser welding process of the flat glass, a CCD camera can be placed at the tilted window of the front mold to observe the weld morphology and laser spot position.
[0031] In summary, this solution can accurately control the preheating or annealing temperature and achieve uniform temperature control. Integrating all mechanisms into a single unit not only facilitates installation on experimental platforms but also makes the entire unit easier to move.
Claims
1. A temperature control device for laser welding of flat glass, characterized by: The utility model relates to a kind of temperature control device for the preheating or annealing of flat glass, comprising bottom fixing part (3), the front mold (4) is fixed on the bottom fixing part (3) by screw connection, the front mold (4) is hinged with rear mold (10) by rotating shaft (12), the protruding rectangular part of front mold (4) and rear mold (10) is fixed by screw connection with switch handle-1 (7) and switch handle-2 (16), switch handle-1 (7) and switch handle-2 (16) are placed by up and down dislocation to realize the opening and closing of the whole device, the front plate (8) and rear plate (14) inside front mold (4) and rear mold (10) are connected with electric wire (2), after energization, reach the heating of U-shaped reciprocating type heating pipeline inside the front plate (8) and rear plate (14).
2. A temperature control device for laser welding flat glass according to claim 1, characterized in that: A plurality of threaded holes are uniformly arranged on the rotating shaft (12), and the rotating shaft (12) is fixed in the front mold (4) and the rear mold (10) by screw connection, and the rotating shaft (12) can be opened and closed at a certain angle when the front mold (4) and the rear mold (10) are opened and closed.
3. A temperature control device for laser welding flat glass according to claim 1, characterized in that: The inside of the front mold (4) and the rear mold (10) is fixed with the front heat insulation cotton (5) and the rear heat insulation cotton (9) by the L-shaped fixing block (11), and the front plate (8) and the rear plate (14) are fixed inside the front heat insulation cotton (5) and the rear heat insulation cotton (9) by interference fit.
4. A temperature control device for laser welding flat glass according to claim 1, characterized in that: A window is arranged on the outside of the front mold (4) and the rear mold (10) at a certain angle from inside to outside, so that the CCD camera can be placed to observe the welding appearance of the solder.
5. A temperature control device for laser welding flat glass according to claim 1, characterized in that: The temperature control display (1) sets the preheating or annealing temperature of flat glass, and conducts current to the U-shaped reciprocating type heating pipeline inside the front plate (8) and the rear plate (14) by the electric wire (2) and heats the U-shaped reciprocating type heating pipeline, the front heat insulation cotton (5) and the rear heat insulation cotton (9) fixed on the outside of the front plate (8) and the rear plate (14) absorb heat, and reduce the conduction of heat to the front mold (4) and the rear mold (10) on the outside 6. A temperature control device for laser welding flat glass according to claim 1, characterized in that: The support column (6) is installed on the displacement table of the laser welding experiment table on one side, and the glass clamp (13) is fixed on the other side. The glass clamp (13) clamps and fixes the flat glass (15). The displacement table is moved to move the flat glass (15) and the glass clamp (13) into the temperature control device processing part. The flat glass is uniformly preheated or annealed. At the same time of preheating, the temperature sensor inside the front plate (8) and the rear plate (14) monitors and feeds back the preheating or annealing temperature in real time.