Laser welding equipment with adjustable welding spot size

Abstract

The utility model discloses laser welding equipment with adjustable welding spot size, and relates to the technical field of high polymer material welding. Laser welding equipment with the welding spot size adjustable comprises a laser welding machine, a protective shell is slidably connected to the outer wall of the front end of the laser welding machine, second sliding guide rails are fixedly connected to the front side and the rear side of the interior of the laser welding machine, and first sliding guide rails are slidably connected to the outer surfaces of the two second sliding guide rails; the laser welding machine is started in the adjusting device, then the laser beam enters the second movable focusing device through the collimating device and the fixed reflector, then the welding beam finally acting on a product generates diameter change according to requirements, in this way, the size of a welding point can be conveniently changed through the CO laser source according to the optical focusing principle, and the welding quality is improved. Therefore, the problem that the same equipment cannot complete macromolecule welding of various welding spot sizes is avoided, the practicability and the flexibility of the equipment are greatly improved, and meanwhile the welding efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of polymer material welding, and in particular to a laser welding device with adjustable weld spot size. Background Technology

[0002] Polymer materials are classified into natural polymers and synthetic polymers based on their origin. Natural polymers are macromolecular substances found in animals, plants, and other organisms, and can be divided into natural fibers, natural resins, natural rubber, animal glue, etc. Synthetic polymers mainly refer to three major synthetic materials: plastics, synthetic rubber, and synthetic fibers. They also include adhesives, coatings, and various functional polymers.

[0003] In traditional polymer welding, the size of the weld point is determined by the size of the mold. When it is necessary to change the welding size of the product, the corresponding welding mold needs to be replaced. Then, in order to change the size of the weld point, it is usually necessary to manually change the heating mold. This operation is inefficient and prone to errors when switching between multiple batches of small products. Utility Model Content

[0004] The purpose of this utility model is to at least solve one of the technical problems existing in the prior art, and to provide a laser welding equipment with adjustable weld point size. This equipment can solve the problem that changing the size of the weld point usually requires manually changing the heating mold, which is inefficient and prone to errors when switching between multiple batches of small products.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a laser welding device with adjustable weld spot size, comprising a laser welding machine, wherein a protective shell is slidably connected to the outer wall of the front end of the laser welding machine, and a second sliding guide rail is fixedly connected to both the front and rear sides inside the laser welding machine.

[0006] The outer surfaces of the two second sliding guide rails are slidably connected to the first sliding guide rails;

[0007] The laser welding machine has a display installed on its outer surface.

[0008] Among them, an auxiliary support block is slidably connected to the outer wall of the first sliding guide rail near the protective shell;

[0009] Among them, one end of the bolt threaded on the outer surface of the auxiliary support block contacts the outer wall of the first sliding guide rail;

[0010] The laser welding machine is equipped with an adjustment device.

[0011] Preferably, the adjustment device includes a CO2 laser source, which is fixedly connected inside the laser welding machine;

[0012] Two guide rods are fixedly connected inside the support block on the first sliding guide rail.

[0013] Preferably, a second movable focusing device is fixedly connected to the outer walls of both the front and rear ends of the two guide rods;

[0014] Among them, two identical guide rods are fixedly connected to the opposite surfaces at the upper ends of the two second movable focusing devices.

[0015] Preferably, an imaging device is slidably connected to the outer wall of the two upper guide rods;

[0016] Among them, the outer walls of the two lower guide rods are slidably connected to a first movable focusing device;

[0017] The laser welding machine has a fixed reflector installed inside.

[0018] Preferably, a scale is installed on the outer wall of the fixed reflector;

[0019] The laser welding machine has a cylinder fixedly connected inside.

[0020] Preferably, a collimation device is installed at the end of the fixed reflector near the cylinder;

[0021] The output end of the cylinder contacts the outer wall of the collimation device.

[0022] Compared with the prior art, the beneficial effects of this utility model are:

[0023] (1) The laser welding equipment with adjustable weld point size starts the laser welding machine through the adjustment device, and then enters the second movable focusing device through the collimation device and the fixed reflector. Then, the first movable focusing device slides on the guide rod to drive the imaging device to move back and forth, thereby causing the laser focusing lens in the imaging device to move back and forth. Then, the welding beam acting on the product will change in diameter as required. In this way, by using the principle of optical focusing through the CO laser source, the size of the weld point can be easily changed. Therefore, it avoids the problem that the same equipment cannot complete the welding of polymers with different weld point sizes, thereby greatly improving the practicality and flexibility of the equipment, and improving the welding efficiency.

[0024] (2) The laser welding equipment with adjustable weld size allows the laser welding machine to open its protective shell, place the object to be welded inside the laser welding machine, close the protective shell, and start the laser welding machine. In this way, the protective shell can provide physical protection for the laser, prevent dust, debris or other external factors from damaging or affecting it, and at the same time greatly improve the safety performance of the equipment, avoid the influence of external signals or electromagnetic interference on the laser welding machine, and ensure the stability and accuracy of the welding process. Attached Figure Description

[0025] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0026] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0027] Figure 2 This utility model Figure 1 A structural schematic diagram of the enlarged view at point A in the middle;

[0028] Reference numerals: 1. Laser welding machine; 2. First movable focusing device; 3. Fixed reflector; 4. First sliding guide rail; 5. Second sliding guide rail; 6. Red laser device; 7. Protective shell; 8. Display; 9. Auxiliary support block; 10. CO2 laser source; 11. Imaging device; 12. Second movable focusing device; 13. Scale dial; 14. Collimation device; 15. Guide rod; 16. Cylinder. Detailed Implementation

[0029] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0030] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0031] In the description of this utility model, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of terms like "first" and "second" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the quantity or sequence of the indicated technical features.

[0032] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0033] Please see Figure 1-2This utility model provides a technical solution: a laser welding device with adjustable weld point size, including a laser welding machine 1. A protective shell 7 is slidably connected to the outer wall of the front end of the laser welding machine 1. Second sliding guide rails 5 are fixedly connected to both the front and rear sides inside the laser welding machine 1. First sliding guide rails 4 are slidably connected to the outer surfaces of the two second sliding guide rails 5. A display 8 is installed on the outer surface of the laser welding machine 1. An auxiliary support block 9 is slidably connected to the outer wall of the first sliding guide rail 4 near the protective shell 7. One end of the bolt threaded on the outer surface of the auxiliary support block 9 contacts the outer wall of the first sliding guide rail 4. An adjustment device is provided on the laser welding machine 1.

[0034] The adjustment device includes a CO2 laser source 10, which is fixedly connected inside the laser welding machine 1. Two guide rods 15 are fixedly connected inside the support block on the first sliding guide rail 4.

[0035] Among them, the outer walls of the front and rear ends of the two guide rods 15 are fixedly connected to the second movable focusing device 12, and the opposite surfaces of the upper ends of the two second movable focusing devices 12 are fixedly connected to the two identical guide rods 15.

[0036] Among them, the outer walls of the two upper guide rods 15 are slidably connected to the imaging device 11, the outer walls of the two lower guide rods 15 are slidably connected to the first movable focusing device 2, and the laser welding machine 1 is equipped with a fixed reflector 3.

[0037] The outer wall of the fixed reflector 3 is equipped with a dial 13, and the inside of the laser welding machine 1 is fixedly connected with a cylinder 16.

[0038] Among them, a collimation device 14 is installed at the end of the fixed reflector 3 near the cylinder 16, and the output end of the cylinder 16 is in contact with the outer wall of the collimation device.

[0039] Furthermore, when using the device, it is started by connecting an external power source. First, the protective shell 7 on the laser welding machine 1 is opened, and then the object to be welded is placed inside the laser welding machine 1. Then, the protective shell 7 is closed and the laser welding machine 1 is started. Then, it enters the second movable focusing device 12 through the collimating device 14 and the fixed reflector 3. Then, the imaging device 11 is moved back and forth by sliding the first movable focusing device 2 on the guide rod 15.

[0040] Furthermore, by moving the laser focusing lens in the imaging device 11 back and forth, the diameter of the welding beam that ultimately acts on the product changes as required. The welded object is then observed by the red semiconductor laser on the CO2 laser source 10 in the laser welding machine 1, allowing the change in the size of the laser beam to be observed. The welding process can then be observed on the display 8 on the laser welding machine 1, which greatly improves the practicality of the equipment.

[0041] The laser welding machine 1 is started by adjusting the device, and then enters the second movable focusing device 12 through the collimating device 14 and the fixed reflector 3. Then, the first movable focusing device 2 slides on the guide rod 15 to drive the imaging device 11 to move back and forth, thereby moving the laser focusing lens in the imaging device 11 back and forth. This causes the welding beam acting on the product to change in diameter as required. In this way, by using the principle of optical focusing through the CO2 laser source, the size of the welding point can be easily changed. Therefore, it avoids the problem that the same equipment cannot complete the welding of polymers with different welding point sizes, thus greatly improving the practicality and flexibility of the equipment and increasing the welding efficiency. By opening the protective shell 7 on the laser welding machine 1, the object to be welded is placed inside the laser welding machine 1. Then, the protective shell 7 is closed and the laser welding machine 1 is started. In this way, the protective shell 7 provides physical protection for the laser, preventing dust, debris or other external factors from damaging or affecting it. At the same time, it greatly improves the safety performance of the equipment, avoids the influence of external signals or electromagnetic interference on the laser welding machine 1, and ensures the stability and accuracy of the welding process.

[0042] Working principle: First, open the protective shell 7 on the laser welding machine 1, then place the object to be welded into the laser welding machine 1, then close the protective shell 7 and start the laser welding machine 1. Then, through the collimating device 14 and the fixed reflector 3, the laser beam enters the second movable focusing device 12. Then, the first movable focusing device 2 slides on the guide rod 15, driving the imaging device 11 to move back and forth, thereby causing the laser focusing lens in the imaging device 11 to move back and forth. This causes the welding beam acting on the product to change in diameter as required. Then, the red semiconductor laser on the CO2 laser source 10 in the laser welding machine 1 is used to observe the welded object, so that the change in the size of the laser beam can be observed. Then, the welding process can be observed through the display 8 on the laser welding machine 1.

[0043] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A laser welding device with adjustable weld spot size, comprising a laser welding machine (1), characterized in that: The front outer wall of the laser welding machine (1) is slidably connected with a protective shell (7), and the front and rear sides of the laser welding machine (1) are fixedly connected with second sliding guide rails (5). Among them, the outer surfaces of the two second sliding guide rails (5) are slidably connected to the first sliding guide rail (4); The laser welding machine (1) has a display (8) mounted on its outer surface; Among them, the outer wall of the first sliding guide rail (4) near the protective shell (7) is slidably connected to an auxiliary support block (9); Among them, one end of the bolt threaded on the outer surface of the auxiliary support block (9) contacts the outer wall of the first sliding guide rail (4); The laser welding machine (1) is equipped with an adjustment device.

2. The laser welding equipment with adjustable weld spot size according to claim 1, characterized in that: The adjustment device includes a CO2 laser source (10), which is fixedly connected inside the laser welding machine (1); Among them, two guide rods (15) are fixedly connected inside the support block on the first sliding guide rail (4).

3. The laser welding equipment with adjustable weld spot size according to claim 2, characterized in that: The outer walls of the front and rear ends of the two guide rods (15) are fixedly connected with a second movable focusing device (12); Among them, two identical guide rods (15) are fixedly connected to the opposite surfaces of the upper ends of the two second movable focusing devices (12).

4. The laser welding equipment with adjustable weld spot size according to claim 3, characterized in that: The outer walls of the two upper guide rods (15) are slidably connected to the imaging device (11); Among them, the outer walls of the two lower guide rods (15) are slidably connected to the first movable focusing device (2); Among them, the laser welding machine (1) has a fixed reflector (3) installed inside.

5. The laser welding equipment with adjustable weld spot size according to claim 4, characterized in that: The outer wall of the fixed reflector (3) is equipped with a dial (13); Among them, the laser welding machine (1) has a cylinder (16) fixedly connected inside.

6. The laser welding equipment with adjustable weld spot size according to claim 5, characterized in that: A collimation device (14) is installed at one end of the fixed reflector (3) near the cylinder (16); The output end of the cylinder (16) is in contact with the outer wall of the collimation device.

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