Rapidly cooled welding fixture and laser welding apparatus

Abstract

The utility model relates to the related technical field of slide welding, concretely is the welding clamping station and laser welding device of quick cooling, including the turret, be provided with a plurality of welding sites on the turret, just the clamping seat is fixedly installed on the welding site, the recess is formed to the clamping seat, the recess is provided with the cooling plate that can be along the height direction and lift in, two ends of the cooling plate are communicated with the pumping mechanism fixedly installed in the turret respectively, the symmetrical setting of lifting assembly is arranged in the welding site, the utility model controls the cooling plate and slide abuts after the laser welding ends, and the circulating cooling water in the cooling plate can directly absorb the heat of the welding area, and the heat is taken away through the heat exchange, thereby the slide is cooled quickly, avoid the cooling plate and slide direct contact to cause the temperature gradient of being too high when welding, effectively reduce this temperature gradient, can make the temperature distribution of each part of slide more uniform, improve the strength and stability of the welded joint.

Description

Technical Field

[0001] This utility model relates to the technical field of glass slide welding, specifically to a rapid cooling welding clamping stage and a laser welding device. Background Technology

[0002] A glass slide is a transparent glass slide used for microscopic observation, typically for fixing and supporting samples. In some experiments, to achieve a secure connection between components while ensuring stability and reliability in various experiments and applications, glass slides are often welded. Existing welding methods are generally divided into laser welding, ultrasonic welding, and cryogenic welding. Among them, laser welding uses a femtosecond laser focused on the glass surface to achieve micro-area melting through a nonlinear absorption mechanism.

[0003] When using laser welding technology to weld glass slides, the high energy density and short action time of the laser will generate an instantaneous high temperature zone on the surface of the material. The cooling channel on the clamping stage is in contact with the bottom of the glass slide, and the cooling channel continuously cools the glass slide. This results in an excessively high temperature gradient on the surface of the glass slide during welding, which leads to a decrease in the welding quality of the glass slide. Utility Model Content

[0004] The purpose of this invention is to provide a welding clamping stage with rapid cooling to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A rapid cooling welding clamping platform includes a turret with multiple welding positions and a clamping seat fixedly installed at each welding position. A groove is formed on the clamping seat, and a cooling plate that can move up and down along the height direction is provided in the groove. Both ends of the cooling plate are respectively connected to a pumping mechanism fixedly installed in the turret to form a circulating water cooling circuit.

[0007] A lifting assembly is symmetrically arranged within the welding position. The lifting assembly presses the cooling plate up to the end of its stroke. The cooling plate abuts against the glass slide. The lifting assembly is controlled by an intermittent drive component installed within the welding position.

[0008] The rapid cooling welding clamping table as described above: the pumping mechanism includes a micro pump fixedly installed inside the turret, the micro pump having an inlet end and an outlet end respectively, the inlet end being connected to a refrigeration system fixedly installed inside the turret;

[0009] It also includes an inlet pipe and an outlet pipe. One end of the inlet pipe is connected to the cooling plate, and the other end is connected to the outlet of the micro pump. One end of the outlet pipe is connected to the cooling plate, and the other end is connected to the refrigeration system.

[0010] The rapid cooling welding clamping table described above: symmetrically arranged limit seats are provided on the welding position, the limit seats are formed with movable grooves, and extension tubes that can pass through the movable grooves are formed at both ends of the cooling plate.

[0011] The rapid cooling welding clamping stage as described above: an embedded groove is formed in the welding position, and the lifting assembly and the intermittent drive are installed in the embedded groove.

[0012] The rapid cooling welding clamping table as described above: the lifting assembly includes a grooved roller rotatably mounted in the embedded groove, and the grooved roller has a sliding groove.

[0013] It also includes a lifting plate that is slidably disposed in the movable groove and fixed to the extension tube. A sleeve is fixedly installed at one end of the lifting plate away from the extension tube. The sleeve is arranged along the axial direction of the groove roller, and a second ball bearing that is slidably connected to the groove is movably disposed inside the sleeve.

[0014] The rapid cooling welding clamping table as described above: the intermittent drive component includes a lead screw rotatably mounted in the inner groove, the rotation of the lead screw is driven by a motor fixedly mounted in the inner groove, and a connecting hoop is threaded onto the lead screw;

[0015] It also includes a connecting shaft rotatably installed in the embedded groove, with the end of the connecting clamp away from the lead screw slidably sleeved on the connecting shaft, and the two ends of the connecting shaft respectively connected to the two grooved rollers through symmetrically arranged bevel gear sets.

[0016] The rapid cooling welding clamping stage described above: a limiting groove is formed on the connecting shaft, and a first ball bearing that is movably disposed on the connecting hoop and slidably adapted to the limiting groove is provided.

[0017] A laser welding apparatus, including the rapid-cooling welding clamping stage described in any one of the above.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] After laser welding is completed, the intermittent drive is activated to control the lifting assembly to press the cooling plate until it comes into contact with the glass slide. The circulating cooling water in the cooling plate can directly absorb the heat from the welding area and carry it away through heat exchange, thereby rapidly cooling the glass slide. This avoids excessively high temperature gradients caused by direct contact between the cooling plate and the glass slide during welding, effectively reducing such temperature gradients. This allows for a more uniform temperature distribution across the glass slide, thereby reducing thermal stress and improving the strength and stability of the weld joint. Attached Figure Description

[0020] Figure 1 A schematic diagram of a welding clamping stage for rapid cooling.

[0021] Figure 2 A schematic diagram of the internal structure of the turret in the welding clamping platform for rapid cooling.

[0022] Figure 3 A schematic diagram of the cooling plate and pumping mechanism in the welding clamping platform for rapid cooling.

[0023] Figure 4 A schematic diagram of the structure of the clamping seat and cooling plate in the welding clamping table for rapid cooling.

[0024] Figure 5 A schematic diagram of the internal structure of the welding position in a welding clamping table for rapid cooling.

[0025] Figure 6 A schematic diagram of the lifting assembly and intermittent drive component in the welding clamping platform for rapid cooling.

[0026] Figure 7 A schematic diagram of the connecting shaft in the welding clamping platform for rapid cooling.

[0027] In the diagram: 1. Turret; 2. Welding position; 3. Clamping seat; 301. Groove; 4. Limiting seat; 401. Movable groove; 5. Refrigeration system; 6. Water inlet pipe; 7. Micro pump; 8. Cooling plate; 801. Extension pipe; 9. Water outlet pipe; 10. Motor; 11. Lead screw; 12. Connecting clamp; 1201. First ball bearing; 13. Connecting shaft; 1301. Limiting groove; 14. Bevel gear set; 15. Grooved roller; 1501. Slide groove; 16. Sleeve; 1601. Second ball bearing; 17. Lifting plate. Detailed Implementation

[0028] Various exemplary embodiments, features, and aspects of this application will now be described in detail with reference to the accompanying drawings. The same reference numerals in the drawings denote elements that have the same or similar functions. Although various aspects of the embodiments are shown in the drawings, they are not necessarily drawn to scale unless specifically indicated otherwise.

[0029] The term “exemplary” as used herein means “serving as an example, embodiment, or illustration.” Any embodiment illustrated herein as “exemplary” is not necessarily to be construed as superior to or better than other embodiments.

[0030] Furthermore, to better illustrate this application, numerous specific details are provided in the following detailed embodiments. Those skilled in the art should understand that this application can be implemented without certain specific details. In some instances, methods, means, and elements well-known to those skilled in the art have not been described in detail, in order to highlight the main points of this application.

[0031] Please see Figures 1-7 In this embodiment of the present invention, the rapid cooling welding clamping platform includes a turret 1, on which a plurality of welding positions 2 are provided, and a clamping seat 3 is fixedly installed on each welding position 2; a groove 301 is formed on the clamping seat 3, and a cooling plate 8 capable of rising and falling along the height direction is provided in the groove 301; the two ends of the cooling plate 8 are respectively connected to a pumping mechanism fixedly installed in the turret 1 to form a circulating water cooling circuit.

[0032] A lifting assembly is symmetrically arranged in the welding position 2. The lifting assembly presses the cooling plate 8 to rise to the end of its stroke. The cooling plate 8 abuts against the glass slide. The lifting assembly is controlled by an intermittent drive component installed in the welding position 2.

[0033] It should be noted that after the glass slide welding is completed, its laser welding control unit sends a signal to the intermittent drive unit, which then starts working upon receiving the signal.

[0034] In this embodiment, when laser welding is performed on the glass slide on the clamping seat 3, the pumping mechanism delivers water to the cooling plate 8. After the laser welding is completed, the intermittent drive is activated to control the lifting assembly to press the cooling plate 8 until the cooling plate 8 comes into contact with the glass slide. The circulating cooling water in the cooling plate 8 can directly absorb the heat from the welding area and carry it away through heat exchange, thereby rapidly cooling the glass slide. This avoids the excessively high temperature gradient caused by direct contact between the cooling plate 8 and the glass slide during welding, effectively reducing this temperature gradient. This allows for a more uniform temperature distribution in all parts of the glass slide, thereby reducing the generation of thermal stress and improving the strength and stability of the welded joint.

[0035] For further solutions to this utility model, please refer to [link / reference]. Figure 2 and Figure 3 The pumping mechanism includes a micro pump 7 fixedly installed inside the turret 1. The micro pump 7 has an inlet end and an outlet end respectively. The inlet end is connected to the refrigeration system 5 fixedly installed inside the turret 1.

[0036] It also includes an inlet pipe 6 and an outlet pipe 9. One end of the inlet pipe 6 is connected to the cooling plate 8, and the other end is connected to the outlet of the micro pump 7. One end of the outlet pipe 9 is connected to the cooling plate 8, and the other end is connected to the refrigeration system 5.

[0037] The welding position 2 is symmetrically provided with a limiting seat 4, and the limiting seat 4 has a movable groove 401 formed on it. The two ends of the cooling plate 8 are respectively provided with an extension tube 801 that can pass through the movable groove 401.

[0038] Before welding the glass slide, the micro pump 7 starts working, pumping cold water from the refrigeration system 5 to the cooling plate 8. After welding, the cooling plate 8 rises to contact the glass slide, and the cold water in the cooling plate 8 absorbs the heat on the glass slide, so that the welding area of ​​the glass slide can be cooled quickly. At the same time, the water that has absorbed the heat is transported to the refrigeration system 5 for cooling, and can be transported back to the cooling plate 8 by the micro pump 7, thus forming a circulating water cooling loop.

[0039] Preferably, an embedded groove is formed in the welding position 2, and the lifting assembly and the intermittent drive component are installed in the embedded groove.

[0040] For further solutions to this utility model, please refer to [link / reference]. Figure 5 , Figure 6 and Figure 7 The lifting assembly includes a grooved roller 15 rotatably mounted in the embedded groove, and the grooved roller 15 is provided with a sliding groove 1501;

[0041] It also includes a lifting plate 17 that is slidably disposed in the movable groove 401 and fixed to the extension tube 801. A sleeve 16 is fixedly installed at one end of the lifting plate 17 away from the extension tube 801. The sleeve 16 is axially disposed along the groove roller 15, and a second ball bearing 1601 that is slidably connected to the sliding groove 1501 is movably disposed inside the sleeve 16.

[0042] The intermittent drive component includes a lead screw 11 rotatably installed in the inner groove. The rotation of the lead screw 11 is driven by a motor 10 fixedly installed in the inner groove. A connecting hoop 12 is threaded onto the lead screw 11.

[0043] It also includes a connecting shaft 13 rotatably installed in the embedded groove, with the end of the connecting clamp 12 away from the lead screw 11 slidably sleeved on the connecting shaft 13, and the two ends of the connecting shaft 13 being connected to the two grooved rollers 15 respectively through symmetrically arranged bevel gear sets 14.

[0044] Preferably, a limiting groove 1301 is formed on the connecting shaft 13, and a first ball bearing 1201 that is movably disposed on the connecting hoop 12 and slides to fit the limiting groove 1301 is provided.

[0045] The limiting groove 1301 is divided into a first threaded groove, a straight groove and a second threaded groove.

[0046] Specifically, when the motor 10 receives a signal, it starts to work. The output shaft of the motor 10 is fixed to the lead screw 11, so that when the output shaft rotates, it drives the lead screw 11 to rotate synchronously. The rotation of the lead screw 11 can drive the connecting clamp 12 to move in a direction parallel to the axis of the lead screw 11. In the initial state, the first ball 1201 is located in the first thread groove. When the connecting clamp 12 moves, it drives the first ball 1201 to move relative to the connecting shaft 13. The first ball 1201 generates an inclined force on the first thread groove, causing the connecting shaft 13 to rotate. Under the transmission action of the bevel gear set 14, the requirement of synchronous rotation of the two grooved rollers 15 is achieved.

[0047] When the grooved roller 15 rotates, the groove 1501 on it squeezes the second ball 1601. When the grooved roller 15 rotates one revolution, its sleeve 16 completes a set of reciprocating lifting and lowering actions. The squeezing of the first ball 1201 on the first threaded groove causes the grooved roller 15 to rotate half a revolution. When the first ball 1201 moves into the straight groove, the sleeve 16 rises to the highest point of its stroke. The rise of the sleeve 16 can drive the lifting plate 17 to rise synchronously, so that the cooling plate 8 can come into contact with the glass slide to cool the glass slide quickly. After the cooling plate 8 comes into contact with the glass slide, the first ball 1201 moves into the straight groove, thereby extending the contact time between the cooling plate 8 and the glass slide and ensuring that the cooling plate 8 can fully absorb heat from the glass slide.

[0048] After the glass slide cools down, the first ball bearing 1201 continues to move into the second threaded groove, allowing the connecting shaft 13 to continue rotating and driving the cooling plate 8 to reset, waiting for the next cooling operation of the glass slide. During this process, the cold water in the cooling plate 8 is always in a flowing state.

[0049] A laser welding apparatus, including the rapid-cooling welding clamping stage described in any one of the above.

[0050] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0051] 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. A rapid cooling welding clamping table, comprising a turret (1), wherein a plurality of welding positions (2) are provided on the turret (1), and a clamping seat (3) is fixedly installed on the welding position (2), characterized in that; A groove (301) is formed on the clamping seat (3), and a cooling plate (8) that can be raised and lowered along the height direction is provided in the groove (301). The two ends of the cooling plate (8) are respectively connected to the pumping mechanism fixedly installed in the turret (1) to form a circulating water cooling circuit. A lifting assembly is symmetrically arranged in the welding position (2). The lifting assembly presses the cooling plate (8) to rise to the end of its stroke. The cooling plate (8) abuts against the glass slide. The lifting assembly is controlled by an intermittent drive unit installed in the welding position (2).

2. The rapid cooling welding clamping stage according to claim 1, characterized in that, The pumping mechanism includes a micro pump (7) fixedly installed in the turret (1), and the micro pump (7) has an inlet end and an outlet end respectively. The inlet end is connected to the refrigeration system (5) fixedly installed in the turret (1). It also includes an inlet pipe (6) and an outlet pipe (9). One end of the inlet pipe (6) is connected to the cooling plate (8), and the other end is connected to the outlet of the micro pump (7). One end of the outlet pipe (9) is connected to the cooling plate (8), and the other end is connected to the refrigeration system (5).

3. The rapid cooling welding clamping stage according to claim 1, characterized in that, The welding position (2) is symmetrically provided with a limiting seat (4), and a movable groove (401) is formed on the limiting seat (4). The two ends of the cooling plate (8) are respectively provided with an extension tube (801) that can pass through the movable groove (401).

4. The rapid cooling welding clamping stage according to claim 3, characterized in that, An embedded groove is formed in the welding position (2), and the lifting assembly and the intermittent drive are installed in the embedded groove.

5. The rapid cooling welding clamping stage according to claim 4, characterized in that, The lifting assembly includes a grooved roller (15) rotatably mounted in the inner groove, and the grooved roller (15) is provided with a sliding groove (1501). It also includes a lifting plate (17) that is slidably disposed in the movable groove (401) and fixed to the extension tube (801). A sleeve (16) is fixedly installed at one end of the lifting plate (17) away from the extension tube (801). The sleeve (16) is axially disposed along the groove roller (15), and a second ball (1601) that is slidably connected to the slide groove (1501) is movably disposed in the sleeve (16).

6. The rapid cooling welding clamping stage according to claim 5, characterized in that, The intermittent drive component includes a lead screw (11) rotatably installed in the inner groove. The rotation of the lead screw (11) is driven by a motor (10) fixedly installed in the inner groove. A connecting hoop (12) is threaded onto the lead screw (11). It also includes a connecting shaft (13) rotatably installed in the embedded groove, with the end of the connecting hoop (12) away from the lead screw (11) slidably sleeved on the connecting shaft (13), and the two ends of the connecting shaft (13) being connected to the two grooved rollers (15) respectively through symmetrically arranged bevel gear sets (14).

7. The rapid cooling welding clamping stage according to claim 6, characterized in that, A limiting groove (1301) is formed on the connecting shaft (13), and a first ball (1201) is movably provided on the connecting hoop (12) to slide and adapt to the limiting groove (1301).

8. A laser welding apparatus, characterized in that, The welding clamping stage includes any one of the rapid cooling methods described in claims 1-7.

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