Automatic pressure regulating laser welding device and automatic pressure regulating method

Abstract

The invention relates to the technical field of laser welding, in particular to an automatic pressure regulating laser welding device and an automatic pressure regulating method.The automatic pressure regulating laser welding device comprises a welding machine table, a guide column and a baffle, the guide column and the baffle are fixed to the welding machine table, a fixing plate is fixed to the end of the guide column, and a laser welder is fixed to the fixing plate; the bearing assembly is arranged on the welding machine table and used for bearing a glass slide; the supporting plate slides in the axial direction of the guide column, a pressing limiting mechanism is arranged on the supporting plate, and the supporting plate comprises pressing plates which are symmetrically arranged and used for limiting a glass slide; according to the laser welding device, when the glass slide is subjected to thermal deformation due to heating of laser welding, the pressing plate can be controlled to move, and under the action of the pressing limiting mechanism and the follow-up pressure adjusting mechanism, the downward pressure on the glass slide is automatically adjusted according to the thermal deformation quantity; therefore, the problem that the glass slide is damaged due to stress concentration caused by thermal deformation is solved.

Description

Technical Field

[0001] This invention relates to the field of laser welding technology, specifically to an automatic voltage-adjusting laser welding apparatus and an automatic voltage-adjusting method. Background Technology

[0002] When laser welding glass slides, in order to ensure welding accuracy, the glass slides can be fixed by applying a certain downward pressure to prevent them from shifting or vibrating during the welding process.

[0003] When a glass slide is placed on the stage, the stage usually has grooves or protrusions that fit the slide, thereby positioning the slide around its perimeter. Combined with applying downward pressure to the top of the slide, this effectively prevents slight displacement that may occur during the welding process.

[0004] Therefore, before welding, a pressure plate can be pushed to fit against the glass slide by a cylinder or hydraulic cylinder to perform a limiting action on the glass slide. However, since the glass slide will undergo thermal deformation after being heated, the rigid limiting completely restricts the thermal expansion of the glass slide, which will lead to a sharp increase in local stress, especially in the high temperature zone of welding, where micro-cracks or overall breakage are likely to occur.

[0005] To address this, an elastic limiting mechanism can be used instead of a rigid one. By applying elastic downward pressure, the glass slide can be lifted and repositioned during thermal deformation to release the stress generated by the deformation. However, if the initial pressure of the elastic limiting mechanism is set too high, the downward pressure applied to the glass slide during thermal deformation may be excessive, leading to breakage. If the initial pressure of the elastic limiting mechanism is set too low, the limiting force provided in the early stages of welding may be insufficient, potentially causing the glass slide to shift. Summary of the Invention

[0006] The purpose of this invention is to provide an automatic voltage-adjusting laser welding apparatus and an automatic voltage-adjusting method to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: An automatically voltage-adjustable laser welding device includes: A welding machine base, and guide columns and baffles fixed on the welding machine base, wherein a fixing plate is fixed to the end of the guide column, and a laser welder is fixed on the fixing plate; Also includes: A support assembly, mounted on the welding machine, is used to support the glass slide; A support plate slides along the axial direction of the guide column. The support plate is provided with a pressing and limiting mechanism, including symmetrically arranged pressure plates for limiting the glass slide. A follow-up pressure adjustment mechanism is provided on the pressing and limiting mechanism. The follow-up pressure adjustment mechanism can adjust the supporting force provided to the pressing plate through the pressing and limiting mechanism when the pressing plate is displaced.

[0008] As a further aspect of the present invention: the bearing assembly includes a rotating disk rotatably mounted on the welding machine platform, two equidistant platforms are fixed on the rotating disk, and a plurality of protrusions for limiting the position of the glass slide are fixed on the platforms.

[0009] As a further embodiment of the present invention: a second cylinder is fixedly arranged symmetrically on the fixing plate, and the telescopic end of the second cylinder is fixedly connected to the support plate.

[0010] As a further embodiment of the present invention: the pressing and limiting mechanism includes a support column fixed on the support plate, a movable plate that slides axially on the support column, and the movable plate is fixedly connected to the pressure plate.

[0011] As a further embodiment of the present invention: the pressing and limiting mechanism further includes a rotating rod rotatably mounted on the support plate, a symmetrically arranged follower plate fixed on the rotating rod, a connecting rod fixed between the two follower plates, and a limiting wheel symmetrically arranged and in contact with the movable plate fixed on the connecting rod.

[0012] As a further embodiment of the present invention: the follow-up pressure regulating mechanism includes a first movable sleeve and a second movable sleeve that slide along the axial direction of the rotating rod, a first connecting plate is fixed on the first movable sleeve, and a second connecting plate is fixed on the second movable sleeve; It also includes a guide component and an elastic component disposed on the rotating rod and connected to the follower plate for adjusting the rotational resistance of the rotating rod.

[0013] As a further embodiment of the present invention: the guiding component includes a first spiral groove and a second spiral groove formed on the outer circumference of the rotating rod, a first limiting block that slides and engages with the first spiral groove is fixed on the inner wall of the first movable sleeve, and a second limiting block that slides and engages with the second spiral groove is fixed on the inner wall of the second movable sleeve.

[0014] As a further embodiment of the present invention: the elastic component includes a first spring and a second spring sleeved on the rotating rod, the two ends of the first spring abutting against the follower plate and the first connecting plate respectively, and the two ends of the second spring abutting against the follower plate and the second connecting plate respectively.

[0015] As a further embodiment of the present invention: a guide rail is provided on the welding machine base, a partition is slidably installed in the guide rail, and a first cylinder is fixedly connected to the partition inside the welding machine base.

[0016] An automatic pressure adjustment method for laser welding equipment includes the following steps: Step 1: Place the glass slide to be welded on the support assembly, and the support assembly controls the glass slide to move to the desired welding position; Step 2: The support plate controls the movement of the pressure plate through the pressing and limiting mechanism, and when the pressure plate is in contact with the glass slide, the pressing and limiting mechanism and the follow-up pressure adjustment mechanism provide downward pressure to the pressure plate to lock the position of the glass slide. Step 3: The laser welder can perform laser welding on the glass slides; Step 4: When the glass slide deforms due to heat and acts on the pressure plate, the follow-up pressure adjustment mechanism and the pressing limit mechanism adaptively adjust the downward pressure on the pressure plate.

[0017] Compared with the prior art, the beneficial effects of the present invention are: the present application can allow the pressure plate to give way when the glass slide undergoes thermal deformation, so as to ensure that the stress generated by the thermal deformation of the glass slide can be released in time. Specifically, the glass slide can be placed on the support component, and under the action of the support component, the glass slide can be moved to the required welding position. When the pressure plate abuts against the surface of the glass slide, under the action of the pressing and limiting mechanism and the follow-up pressure adjustment mechanism, the pressure plate limits the glass slide in the vertical direction. During laser welding, the glass slide will be heated and undergo thermal deformation, thereby lifting the pressure plate. The pressure plate will drive the pressing and limiting mechanism and the follow-up pressure adjustment mechanism to move, and under the action of the follow-up pressure adjustment mechanism, the downward pressure of the pressure plate on the glass slide is adaptively adjusted, so that when the glass slide undergoes thermal deformation, the pressure plate can automatically give way, and the downward pressure provided to the glass slide is always kept within a certain range. The pressure plate, through its elastic downward pressing, allows for a slight lifting action when the glass slide undergoes thermal deformation after being heated, thereby releasing some of the thermal deformation displacement and preventing complete restriction of the thermal expansion of the glass slide from causing a sharp increase in local stress, especially in the high-temperature welding area where microcracks or overall breakage are likely to occur. During the lifting process, by adjusting the vertical component of the force formed by the limiting wheel on the pressure plate, compressing the first spring, and releasing the second spring, the counterclockwise rotation tendency of the rotating rod is enhanced, thereby increasing the overall force on the limiting wheel to compensate for the loss of vertical component force caused by the increased angle. In this way, the glass slide can freely release the stress generated by thermal deformation, while always being subjected to moderate and stable downward pressure. This prevents the glass slide from micro-displacement caused by the impact of laser welding, and avoids the problem of increased pressure caused by thermal deformation. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of an embodiment of an automatically voltage-adjustable laser welding device.

[0019] Figure 2This is a structural schematic diagram from another angle in an embodiment of an automatically voltage-adjustable laser welding device.

[0020] Figure 3 This is a cross-sectional structural diagram of the welding machine platform and baffle in an embodiment of an automatically pressure-adjustable laser welding device.

[0021] Figure 4 This is a schematic diagram of the internal structure of the welding machine in an embodiment of an automatically voltage-adjustable laser welding device.

[0022] Figure 5 This is a schematic diagram showing the connection relationship between the support plate, the follow-up pressure adjustment mechanism, and the pressing and limiting mechanism in an embodiment of an automatic pressure-adjusting laser welding device.

[0023] Figure 6 for Figure 5 A magnified schematic diagram of the structure at point A in the middle.

[0024] Figure 7 This is a schematic diagram of the structure of some of the follow-up pressure adjustment mechanism and pressing limit mechanism in an embodiment of an automatic pressure-adjusting laser welding device.

[0025] Figure 8 This is a schematic diagram of the structure of part of the pressing and limiting mechanism and part of the follow-up pressure regulating mechanism in an embodiment of an automatic pressure regulating laser welding device.

[0026] Figure 9 This is a schematic diagram of the structure of part of the pressing and limiting mechanism and part of the follow-up pressure regulating mechanism in an embodiment of an automatic pressure regulating laser welding device.

[0027] Figure 10 This is an exploded structural diagram of part of the pressing and limiting mechanism and part of the follow-up pressure regulating mechanism in an embodiment of an automatic pressure regulating laser welding device.

[0028] In the diagram: 1. Welding machine; 101. Guide rail; 2. Baffle; 3. First cylinder; 4. Partition; 5. Rotary disk; 6. Platform; 601. Protruding column; 7. Guide column; 8. Fixing plate; 9. Laser welder; 10. Second cylinder; 11. Support plate; 12. Support column; 1201. Fixing ring; 13. Movable plate; 14. Pressure plate; 15. Rotating rod; 1501. First spiral groove; 1502. Second spiral groove; 16. Follower plate; 17. Connecting rod; 18. Limiting wheel; 19. First movable sleeve; 1901. First limiting block; 20. First connecting plate; 21. First spring; 22. Second movable sleeve; 2201. Second limiting block; 23. Second connecting plate; 24. Second spring. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] Furthermore, elements in this invention are referred to as being "fixed to" or "set on" another element, which may be directly on the other element or may also include an intervening element. When an element is considered to be "connected" to another element, it may be directly connected to the other element or may also include an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementations.

[0031] Please see Figures 1-10 In this embodiment of the invention, the automatically voltage-adjustable laser welding apparatus includes: A welding machine base 1, and a guide column 7 and a baffle 2 fixed on the welding machine base 1, wherein a fixing plate 8 is fixed at the end of the guide column 7, and a laser welder 9 is fixed on the fixing plate 8; Also includes: A support assembly, mounted on the welding machine 1, is used to support the glass slide; The support plate 11 slides along the axial direction of the guide column 7. The support plate 11 is provided with a pressing and limiting mechanism, including symmetrically arranged pressing plates 14 for limiting the glass slide. A follow-up pressure adjustment mechanism is provided on the pressing and limiting mechanism. When the pressure plate 14 is displaced, the follow-up pressure adjustment mechanism can adjust the supporting force provided to the pressure plate 14 through the pressing and limiting mechanism.

[0032] Specifically, during laser welding of a glass slide, the slide can be placed on a support assembly, and under the action of the support assembly, the slide moves to the desired welding position. At this time, the support plate 11 can slide along the axial direction of the guide post 7, so that the pressure plate 14 can be moved towards the glass slide through the pressing and limiting mechanism. When the pressure plate 14 abuts against the surface of the glass slide, under the action of the pressing and limiting mechanism and the follow-up pressure adjustment mechanism, the pressure plate 14 limits the glass slide to ensure that the position of the glass slide will not shift during the welding process. At this time, the laser welder can be used to weld the slide. 9. Laser welding is performed on the glass slides. During laser welding, the glass slides will be heated and undergo thermal deformation, which will lift the pressure plate 14. The pressure plate 14 will drive the pressing and limiting mechanism and the follow-up pressure adjustment mechanism to move. Under the action of the follow-up pressure adjustment mechanism, the downward pressure of the pressure plate 14 on the glass slide will be adaptively adjusted so that the downward pressure provided by the pressure plate 14 to the glass slide is always kept within a certain range when the glass slide undergoes thermal deformation. This avoids the problem of stress concentration caused by thermal deformation of the glass slide due to rigid limiting, which could lead to damage to the glass slide.

[0033] Please see Figures 1-4 The supporting component includes a rotating disk 5 rotatably mounted on the welding machine base 1. Two platforms 6 are fixed on the rotating disk 5 and are equidistantly distributed in a circle. Multiple protrusions 601 for limiting the position of the glass slide are fixed on the platforms 6.

[0034] Please see Figure 3 The welding machine base 1 is provided with a guide rail 101, and a partition 4 is slidably installed in the guide rail 101. A first cylinder 3 is fixedly connected to the partition 4 inside the welding machine base 1.

[0035] In detail, the stage 6 is provided with two protruding pillars 601. Multiple protruding pillars 601 are provided. After multiple protruding pillars 601 are combined, a loading groove is formed in the middle. The glass slide can be placed in the loading groove. Under the action of the protruding pillars 601, the glass slide is positioned on all four sides to ensure that the glass slide will not shift.

[0036] In the initial state, under the action of the first cylinder 3, the partition 4 is located at the end of its stroke away from the rotating disk 5. When welding of the glass slide is required, the rotating disk 5 rotates half a turn, causing the stage 6 carrying the glass slide to move to the required welding position, and the other stage 6 to move to the loading position, so that the glass slide is placed on the other stage 6. During the welding process, the first cylinder 3 controls the partition 4 to slide along the length of the guide rail 101 and move towards the rotating disk 5 until the partition 4 is in contact with the rotating disk 5. Under the action of the partition 4 and the baffle 2, the welding area is sealed to avoid interference from external factors. After the welding is completed, the first cylinder 3 controls the partition 4 to reset. By repeating the above steps, the effect of automatically loading and transporting the glass slide can be achieved.

[0037] Please see Figure 4 A second cylinder 10 is fixed on the fixed plate 8 and is arranged symmetrically. The telescopic end of the second cylinder 10 is fixedly connected to the support plate 11.

[0038] Please see Figures 4-10 The pressing and limiting mechanism includes a support column 12 fixed on the support plate 11, a movable plate 13 slidably disposed on the support column 12, the movable plate 13 being fixedly connected to the pressure plate 14, and a rotating rod 15 rotatably mounted on the support plate 11. A symmetrically arranged follower plate 16 is fixed on the rotating rod 15, and a connecting rod 17 is fixed between the two follower plates 16. A limiting wheel 18 symmetrically arranged and in contact with the movable plate 13 is fixed on the connecting rod 17.

[0039] Please see Figures 4-10 The follow-up pressure regulating mechanism includes a first movable sleeve 19 and a second movable sleeve 22 that slide along the axial direction of the rotating rod 15. A first connecting plate 20 is fixed on the first movable sleeve 19, and a second connecting plate 23 is fixed on the second movable sleeve 22. It also includes a guide assembly and an elastic assembly disposed on the rotating rod 15 and connected to the follow-up plate 16, for adjusting the rotational resistance of the rotating rod 15. The guide assembly includes a first spiral groove 1501 and a second spiral groove 1502 formed on the outer circumferential wall of the rotating rod 15. The inner wall of the cylinder 19 is fixed with a first limiting block 1901 that slides into the first spiral groove 1501, and the inner wall of the second movable sleeve 22 is fixed with a second limiting block 2201 that slides into the second spiral groove 1502. The elastic component includes a first spring 21 and a second spring 24 sleeved on the rotating rod 15. The two ends of the first spring 21 abut against the adjacent follower plate 16 and the first connecting plate 20, respectively. The two ends of the second spring 24 abut against the adjacent follower plate 16 and the second connecting plate 23, respectively.

[0040] Please see Figure 10 Furthermore, the rotating rod 15 is symmetrically arranged, therefore, there are two first movable sleeves 19 and two second movable sleeves 22 respectively. The follower plate 16 is also symmetrically arranged in two sets. Therefore, the two sets of limit wheels 18 can provide symmetrical downward pressure to the movable plate 13. The support plate 11 forms a through hole in the center. There is also enough space between the first connecting plate 20 and the second connecting plate 23 to ensure that there is no interference with laser welding. The first spiral groove 1501 and the second spiral groove 1502 have the same angle in the circumferential direction. However, in terms of the axial length of the rotating rod 15, the axial length of the first spiral groove 1501 is greater than the axial length of the second spiral groove 1502. The end of the support column 12 facing away from the support plate 11 is fixed with a fixing ring 1201. The elastic potential energy of the first spring 21 is greater than that of the second spring 24. That is, the thrust provided by the first spring 21 to the first connecting plate 20 is greater than the thrust provided by the second spring 24 to the second connecting plate 23. For details, please refer to [link to relevant documentation]. Figure 8 Under the combined force of the first spring 21 and the second spring 24 on the left, the left rotating rod 15 will always have a counterclockwise rotation tendency. Under the combined force of the first spring 21 and the second spring 24 on the right, the right rotating rod 15 will always have a clockwise rotation tendency. Under this force, the angle between the follower plate 16 and the pressure plate 14 increases, and the limiting wheel 18 is controlled to abut against the movable plate 13 through the connecting rod 17, so that the pressure plate 14 and the movable plate 13 are at the end of their stroke away from the support plate 11. At this time, the movable plate 13 and the fixed ring... 1201 are mutually abutting, and under the action of the pressure of the limiting wheel 18, the pressure plate 14 always has a thrust moving away from the support plate 11. The follower plate 16 is arranged in an L-shape. The section of the follower plate 16 parallel to the pressure plate 14 is the horizontal section, and the section of the follower plate 16 perpendicular to the pressure plate 14 is the vertical section. In this state, since the horizontal section of the follower plate 16 is parallel to the movable plate 13, the rotational force is completely applied to the movable plate 13 through the limiting wheel 18. Therefore, in this state, the limiting wheel 18 provides the maximum downward pressure to the movable plate 13.

[0041] by Figure 8 Taking the rotation state of the rotating rod 15 on the left side as an example, the rotation state of the rotating rod 15 under the elastic force of the first spring 21 and the second spring 24 is analyzed as follows: In the initial state, under the action of the second cylinder 10, the distance between the support plate 11 and the rotating disk 5 is maximized, so that the pressure plate 14 and the platform 6 are separated. The first limiting block 1901 is located at the end of the stroke of the first spiral groove 1501 near the second spiral groove 1502, so that the distance between the first connecting plate 20 and the adjacent follower plate 16 is maximized. The elongation of the first spring 21 in its natural state is greater than the maximum distance between the first connecting plate 20 and the adjacent follower plate 16. Therefore, the first spring 21 is in a pre-compressed state and always provides the first connecting plate 20 with a thrust in the direction away from the adjacent follower plate 16. Under the action of the first limiting block 1901 and the first spiral groove 1501, the rotating rod 15 has a tendency to rotate counterclockwise. The second limiting block 2201 is located at the end of the stroke of the second spiral groove 1502 on the side away from the first spiral groove 1501, so that the distance between the second connecting plate 23 and the adjacent follower plate 16 is minimized. The elongation of the second spring 24 in its natural state is greater than the maximum distance between the second connecting plate 23 and the adjacent follower plate 16. Therefore, the second spring 24 is also in a pre-compressed state and always provides the second connecting plate 23 with a thrust in the direction away from the adjacent follower plate 16. Under the action of the second limiting block 2201 and the second spiral groove 1502, the rotating rod 15 has a tendency to rotate clockwise.

[0042] When laser welding is required on a glass slide, in order to prevent the glass slide from shifting during the laser welding process and causing deviation in the welding position, a certain downward pressure needs to be applied to the glass slide to ensure that the glass slide is always located between the protrusions 601. To this end, under the action of the second cylinder 10, the support plate 11 is controlled to slide along the axial direction of the guide column 7 and move towards the rotating disk 5. This causes the movable plate 13 and the pressure plate 14 to move synchronously through the support column 12. When the pressure plate 14 is in contact with the glass slide, the position of the glass slide in the vertical direction is restricted under the action of the pressure plate 14 to prevent the glass slide from shifting or vibrating during the welding process and to ensure welding accuracy. Because laser welding generates a lot of heat, the glass slide will undergo thermal deformation after heating. If a rigid limiting method is used to directly act on the glass slide and completely restrict its displacement, stress concentration will occur in the thermal deformation area of ​​the glass slide when thermal deformation occurs, leading to damage in that area. However, the limiting method for the glass slide in this application is elastic. When the glass slide undergoes thermal deformation, the pressure plate 14 will be lifted, and the movable plate 13 will be controlled to slide along the axial direction of the support column 12 and move towards the support plate 11. The pressure plate 14 will also drive the limiting wheel 18 to move, and the follower plate 16 will be controlled to swing away from the support column 12 through the connecting rod 17.

[0043] As a result, the angle between the horizontal section of the follower plate 16 and the pressure plate 14 will increase, which will cause the vertical component of the force acting on the pressure plate 14 to decrease after the counterclockwise rotation force of the rotating rod 15 is transmitted to the limit wheel 18. The follower plate 16 also drives the rotating rod 15 to rotate clockwise, thereby causing the first spiral groove 1501 and the second spiral groove 1502 to move. Under the action of the first spiral groove 1501 and the first limiting block 1901, the first movable sleeve 19 moves away from the second movable sleeve 22 and compresses the first spring 21. Under the action of the second spiral groove 1502 and the second limiting block 2201, the second movable sleeve 22 moves towards the first movable sleeve 19 to elastically release the second spring 24. Since the first connecting plate 20 and the second connecting plate 23 have a guiding function, they can ensure that the first movable sleeve 19 and the second movable sleeve 22 move along the axis of the rotating rod 15. The first spring 21 is compressed, which increases the counterclockwise rotational force provided to the rotating rod 15. The second spring 24 is released elastically, which decreases the clockwise rotational force provided to the rotating rod 15. The compression of the first spring 21 is greater than the release of the second spring 24. As a result, the counterclockwise rotational force provided to the rotating rod 15 by the resultant force of the first spring 21 and the second spring 24 is further increased and is always within the required range. That is, the resistance increases when the rotating rod 15 rotates clockwise, and the downward pressure transmitted to the limiting wheel 18 increases, thereby compensating for the decrease in the vertical component force caused by the increase in the angle between the follower plate 16 and the pressure plate 14. Preferably, the pressure plate 14, through elastic downward pressure, allows for a slight lifting action when the glass slide undergoes thermal deformation after heating, thereby releasing some of the thermal deformation displacement. This prevents the complete restriction of the glass slide's thermal expansion from causing a surge in local stress, which could easily lead to micro-cracks or overall breakage, especially in the high-temperature welding area. Simultaneously, during the lifting process, by adjusting the vertical component force formed by the limiting wheel 18 on the pressure plate 14, compressing the first spring 21, and releasing the second spring 24, the counterclockwise rotation tendency of the rotating rod 15 is enhanced. This increases the overall force on the limiting wheel 18, compensating for the loss of vertical component force caused by the increased angle. In this way, the glass slide can freely release the stress generated by thermal deformation while always being subjected to moderate and stable downward pressure. This prevents micro-displacement of the glass slide caused by the impact of laser welding and avoids the problem of increased pressure due to thermal deformation.

[0044] An automatic pressure adjustment method for laser welding equipment includes the following steps: Step 1: Place the glass slide to be welded on the support assembly, and the support assembly controls the glass slide to move to the desired welding position; Step 2: The support plate 11 controls the movement of the pressure plate 14 through the pressing and limiting mechanism, and when the pressure plate 14 is in contact with the glass slide, the pressing and limiting mechanism and the follow-up pressure adjustment mechanism provide downward pressure to the pressure plate 14 to lock the position of the glass slide. Step 3: Laser welder 9 can perform laser welding on the glass slide; Step 4: When the glass slide deforms due to heat and acts on the pressure plate 14, the follow-up pressure adjustment mechanism and the pressing limit mechanism adaptively adjust the downward pressure on the pressure plate 14.

[0045] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0046] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An automatically voltage-adjustable laser welding device, comprising: A welding machine base, and guide columns and baffles fixed on the welding machine base, wherein a fixing plate is fixed to the end of the guide column, and a laser welder is fixed on the fixing plate; Its characteristic is that it further includes: A support assembly, mounted on the welding machine, is used to support the glass slide; A support plate slides along the axial direction of the guide column. The support plate is provided with a pressing and limiting mechanism, including symmetrically arranged pressure plates for limiting the glass slide. A follow-up pressure adjustment mechanism is provided on the pressing and limiting mechanism. The follow-up pressure adjustment mechanism can adjust the supporting force provided to the pressing plate through the pressing and limiting mechanism when the pressing plate is displaced.

2. The automatic voltage-adjusting laser welding apparatus according to claim 1, characterized in that, The supporting component includes a rotating disk rotatably mounted on the welding machine platform. Two platforms are fixed on the rotating disk and are equidistantly distributed in a circle. Multiple protrusions for limiting the position of the glass slides are fixed on the platforms.

3. The automatic voltage-adjusting laser welding apparatus according to claim 1, characterized in that, A second cylinder is fixedly mounted on the fixed plate in a symmetrical arrangement, and the telescopic end of the second cylinder is fixedly connected to the support plate.

4. The automatic voltage-adjusting laser welding apparatus according to claim 1, characterized in that, The pressing and limiting mechanism includes a support column fixed on the support plate, and a movable plate that slides axially on the support column. The movable plate is fixedly connected to the pressure plate.

5. The automatic voltage-adjusting laser welding apparatus according to claim 4, characterized in that, The pressing and limiting mechanism further includes a rotating rod rotatably mounted on the support plate. Symmetrically arranged follower plates are fixed on the rotating rod, and a connecting rod is fixed between the two follower plates. A limiting wheel, symmetrically arranged and in contact with the movable plate, is fixed on the connecting rod.

6. The automatic voltage-adjusting laser welding apparatus according to claim 5, characterized in that, The follow-up pressure regulating mechanism includes a first movable sleeve and a second movable sleeve that slide along the axial direction of the rotating rod. A first connecting plate is fixed on the first movable sleeve, and a second connecting plate is fixed on the second movable sleeve. It also includes a guide component and an elastic component disposed on the rotating rod and connected to the follower plate for adjusting the rotational resistance of the rotating rod.

7. The automatic voltage-adjusting laser welding apparatus according to claim 6, characterized in that, The guiding assembly includes a first spiral groove and a second spiral groove formed on the outer circumference of the rotating rod. A first limiting block that slides and engages with the first spiral groove is fixed on the inner wall of the first movable sleeve, and a second limiting block that slides and engages with the second spiral groove is fixed on the inner wall of the second movable sleeve.

8. The automatic voltage-adjusting laser welding apparatus according to claim 6, characterized in that, The elastic component includes a first spring and a second spring sleeved on the rotating rod. The two ends of the first spring abut against the follower plate and the first connecting plate, respectively, and the two ends of the second spring abut against the follower plate and the second connecting plate, respectively.

9. The automatic voltage-adjusting laser welding apparatus according to claim 1, characterized in that, The welding machine is provided with a guide rail, and a partition is slidably installed inside the guide rail. A first cylinder is fixedly connected to the partition inside the welding machine.

10. An automatic voltage adjustment method for a laser welding apparatus, employing the automatic voltage adjustment laser welding apparatus as described in any one of claims 1-9, characterized in that, Includes the following steps: Step 1: Place the glass slide to be welded on the support assembly, and the support assembly controls the glass slide to move to the desired welding position; Step 2: The support plate controls the movement of the pressure plate through the pressing and limiting mechanism, and when the pressure plate is in contact with the glass slide, the pressing and limiting mechanism and the follow-up pressure adjustment mechanism provide downward pressure to the pressure plate to lock the position of the glass slide. Step 3: The laser welder can perform laser welding on the glass slides; Step 4: When the glass slide deforms due to heat and acts on the pressure plate, the follow-up pressure adjustment mechanism and the pressing limit mechanism adaptively adjust the downward pressure on the pressure plate.

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