Laser welding clamp
By designing a laser welding fixture and utilizing the cooperation of guide rods and clamping components, the problem of poor withstand voltage during the welding of transformer coils and metal parts was solved, achieving higher welding precision and cost-effectiveness.
Patent Information
- Application Number
- CN202423322079.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2034-12-31
AI Technical Summary
In existing technologies, welding transformer coils and metal parts can easily lead to laser burning through the transformer frame, causing poor withstand voltage.
Design a laser welding fixture, including a guide rod, a clamping element and an elastic element. The elastic element's rebound force keeps the clamping element tightly attached to the coil and the metal part, ensuring a tight weld seam and preventing light leakage and burning through the frame.
It effectively prevents laser light leakage from burning through the transformer frame, avoids poor withstand voltage, improves welding accuracy and stability, and reduces manufacturing costs.
Smart Images
Figure CN223848371U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to laser welding technical field, especially a kind of laser welding fixture. BACKGROUND
[0002] Laser welding is a kind of high-efficiency precision welding method using high-energy density laser beam as heat source.Laser welding is the combination of modern technology and traditional technology, and it has more extensive application field and application level than traditional welding technology, which can greatly improve the efficiency and precision of welding.It has high power density and fast energy release, which improves work efficiency, and its focal point is smaller, which makes the adhesion between the materials better and does not cause damage and deformation of materials.
[0003] In addition to selecting appropriate laser and optimizing process parameters, tooling fixture as an external factor also plays a crucial role in achieving good welding.In the prior art, the coil and metal part of the transformer need to be welded, and the workpiece is not sealed well during welding, which can cause the transformer framework to be burned through by light leakage from the coil and metal part gap, resulting in poor voltage resistance. SUMMARY
[0004] The main purpose of the utility model is to provide a kind of laser welding fixture, to solve the problem of laser burning through the framework of transformer and causing poor voltage resistance when welding the coil and metal part of the transformer.
[0005] To achieve the above purpose, the utility model provides a kind of laser welding fixture, which comprises a guide rod, a clamping part and an elastic part.The clamping part is arranged on one side of the coil and passes through the guide rod.The elastic part is connected to the clamping part at one end and drives the clamping part to push the coil or metal part under the action of the elastic force of the elastic part to make the coil and metal part fit.
[0006] In an embodiment, a limiting part is arranged on the guide rod, and the elastic part is arranged between the clamping part and the limiting part.
[0007] In an embodiment, the elastic part is a compression spring.
[0008] In an embodiment, the clamping part is provided with two clamping pieces, and the two clamping pieces are respectively arranged on the two sides of the two coils or two metal parts to be welded.
[0009] In an embodiment, the guide rod is provided with two guide rods.
[0010] In an embodiment, the clamping part is provided with a clamping part, and the clamping part extrudes the coil and metal part.
[0011] In an embodiment, the laser welding fixture is provided with a sleeve, the clamping piece is provided with a limiting hole, the sleeve is located in the limiting hole, and the sleeve is in close contact with the guide rod.
[0012] In an embodiment, the clamping piece is provided with a connecting portion, the clamping portion is connected with the connecting portion, and the thickness of the clamping portion is greater than that of the connecting portion.
[0013] In an embodiment, the connecting portion is provided in a bent structure.
[0014] In an embodiment, the clamping piece is further provided with a fixing portion, the fixing portion is connected with the connecting portion, the guide rod passes through the fixing portion, and the fixing portion is used for fixing the guide rod.
[0015] The utility model discloses a movable clamping piece, elastic piece is extruded, and the clamping piece is placed on the coil or metal piece, and the elastic piece resets, and the clamping piece extrudes the coil or metal piece and makes the metal piece and coil close, makes the seam between coil and metal piece close, prevents the light leakage and burns through the skeleton of transformer, prevents causing poor pressure resistance. BRIEF DESCRIPTION OF DRAWINGS
[0016] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained according to the structure shown in these drawings without paying creative labor.
[0017] Figure 1 It is the structural schematic diagram of laser welding fixture first embodiment;
[0018] Figure 2 It is the front view of laser welding fixture;
[0019] Figure 3 It is the application schematic diagram of laser welding fixture;
[0020] Figure 4 It is the structural schematic diagram of clamping piece;
[0021] Figure 5 It is the perspective view of laser welding fixture second embodiment;
[0022] Figure 6 It is the front view of laser welding fixture second embodiment.
[0023] EXPLANATION OF DRAWINGS:
[0024] 1-guide rod, 11-limiting piece, 111-round hole, 2-clamping piece, 21-clamping part, 22-limiting hole, 23-connecting part, 24-fixing part, 3-coil, 4-metal piece, 5-sleeve, 6-laser.
[0025] The realization, functional features and advantages of the utility model will be further explained in combination with embodiments with reference to the drawings. DETAILED DESCRIPTION
[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.
[0027] It should be noted that if the embodiments of the utility model involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement condition, etc. between components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directional indications also change accordingly.
[0028] In addition, if the embodiments of the utility model involve descriptions of "first", "second", etc., the descriptions of "first", "second", etc. are only for description purposes, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing throughout the text is that it includes three parallel schemes, taking "A and / or B" as an example, including A scheme, or B scheme, or A and B schemes. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the fact that a person skilled in the art can realize it, and when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist and is not within the protection scope required by the utility model.
[0029] The utility model provides a kind of laser welding fixture, including guide rod 1, clamping piece 2, elastic piece (not shown in drawing), the clamping piece 2 is set to one side of coil 3 and is worn on the guide rod 1, the elastic piece one end is connected to the clamping piece 2 and under the resilience of the elastic piece Action drives the clamping piece 2 and pushes coil or metal piece 3 to make coil 3 and metal piece 4 adhere.
[0030] In the embodiments of the utility model, as Figure 1 And Figure 3As shown, this laser welding fixture uses a movable clamping member 2. The elastic element is compressed and the clamping member 2 is placed on the coil 3 or the metal part 4. The elastic element returns to its original position, and the clamping member 2 presses the coil 3 or the metal part 4 so that the metal part 4 is in close contact with the coil 3. This makes the gap between the coil 3 and the metal part 4 tight, preventing light leakage from burning through the transformer frame and preventing poor withstand voltage. Multiple laser welding fixtures can be set on a workpiece. Through the protection of the laser welding fixtures, the clamping member 2 will block the energy of the leaked light.
[0031] In this embodiment, a limiting member 11 is provided on the guide rod 1, and the elastic member is disposed between the clamping member 2 and the limiting member 11. The elastic member is a compression spring. A compression spring can store elastic potential energy when compressed. When an external force is applied to the spring and it is compressed, the spring generates internal stress and stores energy. This energy can be released when the spring returns to its original shape.
[0032] In addition, the clamping member 2 is provided with two clamping plates, which are respectively disposed on both sides of the two coils 3 or the two metal parts 4 to be welded.
[0033] Two elastic elements are respectively placed between the clamping plate and the limiting member 11. The clamping member 2 can move relative to the guide rod 1. When the clamping member 2 is pulled open, it moves towards the limiting member 11, and the elastic element is squeezed. The clamping member 2 is pressed tightly against the coil 3. When the clamping member 2 is released, it squeezes the coil 3 and the metal part 4, making the gap between the coil 3 and the metal part 4 tight, preventing the laser 6 from leaking light and burning through the transformer frame, and preventing poor withstand voltage.
[0034] The elastic element is placed between the two clamping plates. The two clamping plates are pulled together and move towards each other, squeezing the elastic element so that the clamping element 2 is close to the metal part 4. The clamping element 2 is released and squeezes the metal part 4 and the coil 3, making the gap between the metal part 4 and the coil 3 tight, preventing light leakage and burning through the transformer frame, and preventing poor withstand voltage.
[0035] Two guide rods 1 are provided. The clamping member 2 passes through the two guide rods 1, which can prevent the clamping member 2 from rotating on the guide rods 1 and avoid uneven force when clamping the metal part 4 and the coil 3.
[0036] First Embodiment
[0037] like Figure 2 As shown, the clamping member 2 is provided with a clamping part 21, which compresses the coil 3 and the metal part 4; the clamping member 2 is provided with a connecting part 23, the clamping part 21 is connected to the connecting part 23, and the thickness of the clamping part 21 is greater than that of the connecting part 23; as shown Figure 4As shown, the clamping piece 2 is in the shape of a "T", the T-shaped clamping piece 2 distributes the force applied on the clamping piece 2 better through its horizontal part, enhancing the stability of the clamp, especially when under large or uneven pressure, avoiding the workpiece from tilting or shifting; the T-shaped design helps the clamping piece 2 to clamp the coil or metal piece more accurately, making the clamp more precise in use and reducing errors; the T-shaped structure can disperse the pressure and stress on the clamping piece 2, reducing the force concentration at a single point, thereby improving the durability and load capacity of the laser welding clamp; the protruding clamping part 21 of the clamping part 21 relative to the connecting part 23 can increase the pressure of the clamping piece 2 on the coil 3 or metal piece 4, so as to clamp the coil 3 and metal piece 4; the side of the connecting part 23 is arc-shaped, and the arc-shaped structure can help to disperse the stress applied on the connecting part 23, especially when under the elastic force of the elastic member. Compared with a straight line shape, the arc-shaped design can effectively distribute the force along the curve uniformly, thereby reducing stress concentration and improving the load capacity and durability of the structure. The arc-shaped side not only has functional considerations, but also has aesthetic value. The curve of the arc shape often makes the product appearance more soft and smooth, meeting the aesthetic standards of modern design; the arc-shaped edge can simplify the manufacturing process in some cases, reduce the wear and tear of tools or machines by sharp edges, and prolong the service life of the clamping piece 2. At the same time, the arc-shaped connection can also improve the convenience of assembly and reduce errors in the assembly process.
[0038] Second embodiment
[0039] As Figure 5 and Figure 6As shown, the connecting part 23 is arranged in a bent structure, which generally has a certain elasticity. When the clamping piece 2 presses the workpiece, the connecting part 23 can more evenly distribute the pressure applied on the workpiece, avoiding excessive concentration, thereby reducing the risk of damaging the workpiece, which is particularly important when precise clamping is required. Due to the curved design of the connecting part 23 of the clamping piece 2, the clamping piece 2 can achieve strong clamping capacity in limited space, which is suitable for working environment with relatively small space. The bent structure generally has good fatigue resistance. Because the bending part realizes clamping force through elastic deformation, compared with rigid structure, the bent structure can better resist long-term mechanical stress and reduce the risk of fracture or damage during long-term use. The bending design can effectively absorb external impact force and vibration, avoid excessive stress concentration, and improve the service life and stability of the clamp. The clamping piece 2 with a bent structure can provide certain adaptability when clamping workpieces of different shapes and sizes. Due to its flexible design, it can adapt to the clamping needs of different shapes or irregular surfaces, especially in batch production, and has strong adaptability to various workpieces. The bent structure also allows the clamp to tolerate certain displacement errors during clamping, ensuring higher precision and stability. The clamping piece 2 with a bent structure usually does not need complex adjustment and assembly during manufacturing, as it can achieve the required clamping effect through bending or compression, which not only reduces production cost, but also simplifies production process. Because the bending clamping piece 2 is designed to consider the contact mode between the workpiece and the clamping piece 2, the contact surface pressure distribution is more uniform, reducing the occurrence of local excessive pressure, thereby reducing friction and wear.
[0040] The clamping piece 2 is also provided with a fixing part 24, which is connected with the connecting part 23. The guide rod 1 passes through the fixing part 24, and the fixing part 24 is used to fix the guide rod 1. The laser welding clamp is provided with a sleeve 5, the clamping piece 2 is provided with a limiting hole 22, the sleeve 5 is located in the limiting hole 22, and the sleeve 5 is in close contact with the guide rod 1.
[0041] The direct contact between the guide rod 1 and the clamping piece 2 can cause friction, which can further cause wear and tear, reducing the service life of the system. By providing the sleeve 5, the sleeve 5 acts as an intermediary, effectively reducing the friction between the guide rod 1 and the clamping piece 2, protecting the surfaces of the guide rod 1 and the clamping piece 2, and prolonging the service life of the components; the sleeve 5 can provide a stable guiding path for the guide rod 1, ensuring that the axial movement of the guide rod 1 is more stable. Especially in high-precision applications, the use of the sleeve 5 can reduce the deviation and shaking of the guide rod 1 during movement, ensuring the precision and stability of the entire system; the choice of sleeve 5 material can effectively absorb part of the vibration generated during movement, reduce intermetallic friction noise, and improve the stability of the system. For equipment that requires low-noise operation, the design of the sleeve 5 is particularly important; the sleeve 5 can be used as a component that is easy to replace and maintain, especially when the materials of the guide rod 1 and the clamping piece 2 are expensive or complex, the sleeve 5 can reduce the wear and tear of these components, avoiding frequent replacement of the guide rod 1 or the clamping piece 2. The material of the sleeve 5 is usually cheaper and easier to replace than the guide rod 1 and the clamping piece 2, and has better maintainability; there may be problems such as thermal expansion, corrosion, or chemical reaction between the guide rod 1 and the clamping piece 2. The sleeve 5 can act as a barrier to prevent direct contact and reduce the occurrence of such problems. For example, in high-temperature, high-pressure, or corrosive environments, the use of the sleeve 5 can protect the guide rod 1 and the clamping piece 2 from external factors; the sleeve 5 sometimes also acts as a load-bearing component, helping to distribute the contact pressure between the guide rod 1 and the clamping piece 2, avoiding excessive stress on a single part. This can increase the overall load-bearing capacity of the system, reduce local stress concentration, and improve the durability of the entire mechanical system; in the case of lubrication, the sleeve 5 can help the lubricant to be evenly distributed between the guide rod 1 and the clamping piece 2, thereby ensuring lubrication, reducing the coefficient of friction, and improving movement efficiency.
[0042] The limiting piece 11 is provided with a circular hole 111 located on the side surface of the limiting piece 11. The circular hole 111 is used to reduce the vibration or impact force during the movement of the guide rod 1, and also facilitates the disassembly of the limiting piece 11 from the guide rod 1.
[0043] The workpiece is fixed by a well-designed laser welding fixture, the consistency of the welding gap is maintained, the linearity of the laser is utilized, the workpiece is tilted at a certain angle, even if the laser penetrates, it will not cause poor pressure resistance, short circuit and other situations on the plastic skeleton of the transformer, and the consumables will not increase the manufacturing cost, and the welding cost is low.
[0044] The above-mentioned is only an optional embodiment of the present application, and does not limit the patent range of the present application, and any equivalent structural transformation made by utilizing the content of the present application specification and drawings, or direct / indirect application in other related technical fields is included in the patent protection range of the present application.
Claims
1. A laser welding fixture, characterized by, The device comprises a guide rod, a clamping piece and an elastic piece, the clamping piece is arranged on one side of the coil and passes through the guide rod, one end of the elastic piece is connected to the clamping piece, and the elastic piece drives the clamping piece to push the coil or the metal piece under the elastic force of the elastic piece so that the coil is attached to the metal piece.
2. The laser weld fixture of claim 1, wherein, A limiting piece is arranged on the guide rod, and the elastic piece is arranged between the clamping piece and the limiting piece.
3. The laser weld fixture of claim 2, wherein, The elastic piece is a compression spring.
4. The laser weld fixture of claim 1, wherein, The clamping piece is provided with two clamping pieces, and the two clamping pieces are arranged on the two sides of the two coils or the two metal pieces to be welded respectively.
5. The laser weld fixture of claim 1, wherein, The guide rod is provided with two guide rods.
6. The laser weld fixture of claim 1, wherein, The clamping piece is provided with a clamping part, and the clamping part is used for extruding the coil and the metal piece.
7. The laser weld fixture of claim 1, wherein, The laser welding clamp is provided with a sleeve, the clamping piece is provided with a limiting hole, the sleeve is located in the limiting hole, and the sleeve is tightly attached to the guide rod.
8. The laser weld fixture of claim 6, wherein, The clamping piece is provided with a connecting part, the clamping part is connected to the connecting part, and the thickness of the clamping part is greater than that of the connecting part.
9. The laser weld fixture of claim 8, wherein, The connecting part is arranged in a bending structure.
10. The laser weld fixture of claim 8, wherein, The clamping piece is further provided with a fixing part, the fixing part is connected to the connecting part, the guide rod passes through the fixing part, and the fixing part is used for fixing the guide rod.