Adjusting device for induction coil of induction welding machine

Abstract

The utility model provides an adjusting device for an induction coil of an induction welding machine, which comprises a clamping mechanism, an adjusting mechanism and an adjusting mechanism, the first adjusting mechanism comprises a long-strip-shaped height adjusting piece, one end of the height adjusting piece is fixedly connected with the clamping mechanism, the other end of the height adjusting piece is an adjustable end, the adjustable end is connected with the second adjusting mechanism, and the distance between the induction coil and the workpiece can be adjusted; and the second adjusting mechanism is rotatably connected with the fixing mechanism, so that the induction coil clamped on the clamping mechanism is inclined according to a required angle. The utility model effectively solves the problems that the welding quality of different equipment is different due to the deviation of the inclination angle and the position of the induction coil manually adjusted in the prior art, and the working distance between the induction coil and a workpiece is deviated due to the suspension of the induction coil, so that silver flowing and insufficient welding are caused. Therefore, the welding quality consistency of induction welding products is effectively improved, and the yield of welding products such as electric contact assemblies and hard alloy cutters is greatly increased.

Description

Technical Field

[0001] This utility model relates to the fields of induction welding machine technology and induction heating technology, specifically, to an adjustment device for the induction coil of an induction welding machine. Background Technology

[0002] Precise control of the induction coil's position plays a decisive role in the welding effect of induction welding machines on workpieces such as electrical contact assemblies and carbide tool assemblies. In current automated welding production of products like electrical contact assemblies, the induction coil moves up and down to approach or move away from the workpiece to perform welding. During this process, the induction coil remains suspended, making it prone to misalignment between the coil and the workpiece, leading to problems such as incomplete welds and silver flow, thus affecting the stability of the weld quality. If the position and tilt angle of the induction coil are adjusted manually, the quality of products produced on different machines will vary, easily resulting in uncontrollable consistency in weld quality. Therefore, the use of induction coil auxiliary devices will become an important means and development trend in modern industrial production.

[0003] There are few studies or reports on position correction devices for induction welding machine induction coils, both domestically and internationally. A search revealed that patent CN 118357307A uses a laser positioner, a three-point positioning device, and an electromagnet to correct the position of the induction coil, enabling an ideal working distance between the induction heating coil and the workpiece in the vertical plane. However, this patent cannot perform angular deflection, leading to problems such as uneven welding, localized silver flow, and incomplete welds when welding irregularly shaped workpieces.

[0004] Therefore, there is an urgent need to develop a position correction device for the induction coil of an induction welding machine to solve at least one of the following problems: the difference in welding quality between different equipment caused by manually adjusting the tilt angle and position of the induction coil; the induction coil being suspended, causing the working distance between the induction coil and the workpiece to shift, which in turn leads to poor silver flow soldering. Utility Model Content

[0005] To address the shortcomings of existing technologies, this application provides an adjustment device for the induction coil of an induction welding machine. This device solves at least one of the following problems: differences in welding quality between different devices due to manual adjustment of the induction coil's tilt angle and position; and the induction coil being suspended, causing a misalignment between the induction coil and the workpiece's working distance. This effectively solves problems such as poor silver flow soldering and unstable welding quality caused by unreasonable induction coil position when automatically welding electrical contact components, cemented carbide, and other workpieces.

[0006] This utility model provides an adjustment device for the induction coil of an induction welding machine, comprising: a clamping mechanism, a first adjustment mechanism, a second adjustment mechanism, and a fixing mechanism, wherein:

[0007] The clamping mechanism is used to clamp the induction coil;

[0008] The first adjustment mechanism includes a long strip-shaped height adjustment component. One end of the height adjustment component is fixedly connected to the clamping mechanism. The other end of the height adjustment component is an adjustable end, which is connected to the second adjustment mechanism. The connection position between the two can be adjusted along the height direction of the long strip, thereby adjusting the distance between the induction coil and the workpiece.

[0009] The second adjustment mechanism includes a rotating shaft, which is rotatably connected to the fixing mechanism. The second adjustment mechanism can rotate horizontally within a preset angle range around the rotating shaft, and drive the first adjustment mechanism and the clamping mechanism, causing the induction coil clamped on the clamping mechanism to deflect at an angle.

[0010] Optionally, the clamping mechanism includes two or more clamping components, which clamp the middle sections of two parallel copper tubes of the induction coil. The two or more clamping components are connected by bolts or riveting to fix the induction coil.

[0011] Optionally, in the clamping mechanism, the length of the clamping component located below the induction coil is greater than the length of the clamping component above the induction coil and a portion of it is exposed, and the lower end of the height adjusting component is fixed to the exposed portion of the clamping component below the induction coil.

[0012] Optionally, a through hole is provided on the clamping component below the induction coil, and the lower end of the elongated height adjustment component passes through the through hole and is connected to the clamping component and fixed by fasteners.

[0013] Optionally, after the distance between the induction coil and the workpiece is adjusted, fasteners are used to connect and fix the adjustable end of the first adjustment mechanism to the second adjustment mechanism.

[0014] Optionally, the second adjustment mechanism can rotate at an angle of less than 90 degrees, thereby causing the first adjustment mechanism and the clamping mechanism to deflect, so that the induction coil clamped by the clamping mechanism can deflect at an angle of less than 90 degrees and can be adjusted up and down along the height adjustment member to the desired height position.

[0015] Optionally, the second adjustment mechanism further includes a rotating body, one side of which is provided with an opening groove. The opening groove accommodates the height adjustment member, which has a preset range of motion within the opening groove, but the height adjustment member cannot disengage from the opening groove.

[0016] Optionally, after the height adjustment member is positioned within the opening slot to satisfy the preset tilt angle of the induction coil, the position of the height adjustment member is fixed to the upper and lower surfaces of the second adjustment mechanism at the location of the opening slot by fasteners.

[0017] Optionally, one end of the fixing mechanism is mounted on the housing of the induction welding machine power supply, and the other end is connected to the second adjusting mechanism.

[0018] Optionally, the fixing mechanism is a mechanism made of solid insulating material, and the second adjusting mechanism is a component made of solid insulating material.

[0019] Compared with the prior art, the present invention has at least one of the following beneficial effects:

[0020] 1. This utility model combines a first adjustment mechanism with a second adjustment mechanism, allowing the induction coil to deflect at a set angle and move up and down to any position. This enables precise control and adjustment of the distance and tilt angle between the induction coil and the workpiece to be welded, effectively improving the consistency of welding quality in different induction welding machines by addressing inconsistencies in the distance and tilt angle between the induction coil and the workpiece. Furthermore, the coil can be tilted at an appropriate angle according to the geometry of different workpieces, and the distance between the coil and the workpiece can be adjusted to improve heat distribution, resulting in more uniform welding and increased welding strength.

[0021] 2. The clamping mechanism of this utility model clamps the induction coil to the middle section of the copper tube of the induction welding machine and fixes it to the power supply shell through the fixing mechanism. This greatly shortens the length of the induction coil that is suspended in the air, improves the problem of unstable working distance between the induction coil and the workpiece caused by the up and down vibration of the induction coil during the loading process, effectively reduces the product silver flow and poor soldering caused by unreasonable position of the induction coil, and greatly improves the product yield.

[0022] 3. This utility model is simple to install, easy to operate, and can be easily mass-produced, resulting in significant economic benefits. Attached Figure Description

[0023] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0024] Figure 1 This is a schematic diagram of the structure of the adjustment device for the induction coil of an induction welding machine in one embodiment of the present invention;

[0025] Figure 2 This is a schematic diagram of the structure of the induction welding machine housing, the workpiece to be welded, and the adjustment device of the induction coil in one embodiment of the present invention;

[0026] Figure 3 This is a schematic diagram of the structure of the adjustment device for the induction coil of the induction welding machine in a preferred embodiment of the present invention;

[0027] In the figure: 1-clamping mechanism, 2-first adjustment mechanism, 3-fixing mechanism, 4-second adjustment mechanism, 5-induction coil, 6-bolt, 7-opening slot of the second adjustment mechanism, 8-height adjustment component of the first adjustment mechanism, 9-power supply of the induction welding machine, 10-workpiece to be welded, 202-fastener, 401-rotating shaft, 402-rotating body 402. Detailed Implementation

[0028] The present invention will now be described in detail with reference to specific embodiments. These embodiments will help those skilled in the art to further understand the present invention, but do not limit the present invention in any way. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention. These all fall within the protection scope of the present invention.

[0029] Reference Figure 1 An embodiment of this utility model provides an adjustment device for the induction coil of an induction welding machine, comprising: a clamping mechanism 1, a first adjustment mechanism 2, a fixing mechanism 3, and a second adjustment mechanism 4.

[0030] In this embodiment, the clamping mechanism 1 is used to clamp the induction coil to ensure the stability of the induction coil 5 and prevent the working distance between the induction coil 5 and the workpiece 10 to be welded from shifting due to the suspension of the induction coil 5.

[0031] In this embodiment, the first adjustment mechanism 2 is connected to the clamping mechanism 1, mainly for cooperating with the second adjustment mechanism 4 to adjust the tilt angle and position of the induction coil 5. Specifically, the first adjustment mechanism 2 includes a long strip-shaped height adjustment component 8. One end of the height adjustment component 8 is fixedly connected to the clamping mechanism 1, and the other end of the height adjustment component 8 is an adjustable end, which is connected to the second adjustment mechanism 4. The connection position of the two can be adjusted along the height direction of the long strip, thereby adjusting the distance between the induction coil 5 and the workpiece 10 to be welded. After the distance between the induction coil 5 and the workpiece 10 to be welded is adjusted to meet the requirements, the adjustable end is connected and fixed to the second adjustment mechanism 4 using fasteners 202, thereby ensuring that the working distance between the induction coil and the workpiece 10 to be welded is stable under the adjusted condition.

[0032] In this embodiment, refer to Figure 3As shown, the second adjustment mechanism 4 includes a rotating shaft 401, which is rotatably connected to the fixed mechanism 3. The second adjustment mechanism 4 can rotate horizontally within a preset angle range around the rotating shaft 401, and drive the first adjustment mechanism 2 to deflect at a certain angle. The deflection of the first adjustment mechanism 2, in turn, drives the clamping mechanism 2, which is fixed to it, to deflect accordingly, thereby causing the induction coil 5 clamped on the clamping mechanism to deflect at an angle. After the tilt angle of the induction coil 5 meets the requirements, the second adjustment mechanism 4 is fixed from both ends of the rotating shaft 401 with fasteners, thus ensuring that the tilt angle of the induction coil 5 is always in the required state after adjustment.

[0033] In the above embodiments of this utility model, the first adjustment mechanism 2 and the second adjustment mechanism 4 are used to adjust the tilt angle and distance position of the induction coil 5, which can meet the adjustment requirements of actual applications. This avoids the problems of welding quality differences between different equipment caused by the manual adjustment of the tilt angle and position of the induction coil 5, and the working distance deviation between the induction coil 5 and the workpiece 10 to be welded caused by the induction coil being suspended. Thus, it effectively solves the problems of poor silver flow soldering and poor welding quality stability caused by the unreasonable position of the induction coil 5 when automatically welding electrical contact components, hard alloys and other workpieces.

[0034] In order to better clamp the induction coil 5 and ensure its stability, refer to Figure 1 As shown, the clamping mechanism 1 may include two or more clamping components, which clamp the middle sections of the two parallel copper tubes of the induction coil 5. The two or more clamping components are connected by bolts 6 or riveting to fix the induction coil 5. Specifically, the clamping components may be square or other shaped sheet-like components, and multiple sheet-like components may be connected by bolts 6 or riveting. The clamping mechanism 1 is also fastened to the height adjustment component 8 of the first adjustment mechanism 2 by bolts. The two parallel copper tubes of the induction coil 5 extend outward to the power supply 9 of the induction welding machine and are fixedly connected to the power supply 9.

[0035] Reference Figure 1 As shown, in the clamping mechanism 1, multiple clamping components are used to clamp and fix the induction coil 5. The length of the clamping component located below the induction coil 5 is greater than the length of the clamping component above the induction coil 5, and a section of it protrudes. The lower end of the height adjusting component 8 is fixed to the protruding section of the clamping component below the induction coil 5, so that while connecting with the first adjusting structure, the clamping of the induction coil is not affected. For example, a through hole is provided on the protruding section of the clamping component below the induction coil 5, and the lower end of the elongated height adjusting component 8 passes through the through hole and connects to the clamping component, and the two are fixed by fasteners.

[0036] Reference Figure 3As shown, to provide better adjustment operation and a larger deflection angle adjustment, in a preferred embodiment, the second adjustment mechanism 4 further includes a rotating body 402. The rotating body 402 is square, with one side connected to the rotating shaft 401. The other side opposite the side connected to the rotating shaft 401 has an opening slot for accommodating the height adjustment member 8. The height adjustment member 8 has a preset range of motion within the opening slot, but it cannot disengage from the opening slot. Therefore, in this preferred embodiment, the opening slot allows the second adjustment mechanism to rotate at a large angle and is easy to operate. Compared to using a circular through-hole, the height adjustment member 8 would be restricted by the hole wall, preventing the second adjustment mechanism 4 from rotating at an angle. If an elliptical through-hole is used, the height adjustment member 8 would still be restricted by the hole wall, limiting the second adjustment mechanism 4 to a small angle, making it difficult to meet a wide range of adjustment needs.

[0037] Specifically, in one embodiment, the rotating body 402 of the second adjustment mechanism can rotate around the rotation axis 401 at a set angle, such as less than 90 degrees. Because the rotating body 402 is connected to the height adjustment member 8 of the first adjustment mechanism, it drives the first adjustment mechanism 2 and the clamping mechanism 1 connected to the first adjustment mechanism 2 to deflect together. In this way, the induction coil 5 clamped by the clamping mechanism 1 can deflect at an angle of less than 90 degrees and can be adjusted up and down along the height adjustment member 8 to the desired height position.

[0038] In this embodiment, after the angle is adjusted by the second adjustment mechanism 4, and the position of the height adjustment member 8 in the opening slot 7 meets the preset tilt angle of the induction coil 5, the position of the height adjustment member 8 is fixed on the upper and lower surfaces of the second adjustment mechanism 4 at the location of the opening slot 7 by fasteners, so that the height adjustment member 8 is connected and fixed to one end of the second adjustment mechanism 4. In this way, the second adjustment mechanism 4 can rotate at a preset angle, driving the first adjustment mechanism 2 and the clamping mechanism 1 to deflect, thereby making the induction coil 5 clamped by the clamping mechanism 1 form a preset / required tilt angle with the horizontal plane, which meets the working requirements of induction welding.

[0039] In some embodiments, refer to Figure 2 As shown, one end of the fixing mechanism 3 is horizontally mounted to the housing of the induction welding machine power supply 9 by bolts, and the other end of the fixing mechanism 3 is rotatably connected to the second adjusting mechanism 4, for example, by a hinge. When a hinge is used, in some preferred embodiments, the second adjusting mechanism 4 rotates horizontally along the axis of the hinge at a preset angle, including: according to the geometry of the workpiece 10 to be welded, the second adjusting mechanism 4 tilts at a certain angle, and drives the induction coil 5 to tilt at a certain angle, and then fixes the tilted position with fasteners, so that the angle of the induction coil 5 meets the requirements of induction welding, making the heat distribution of the workpiece 10 to be welded more uniform and the welding strength higher.

[0040] In the above embodiments, the elongated height adjustment component 8 in the first adjustment mechanism 2 can be a cylindrical component. For example, in a specific embodiment, the elongated height adjustment component 8 can be a long-shank bolt, with one end of the long-shank bolt passing through the clamping mechanism 1 and fastened to the clamping mechanism 1 with a bolt; the other end of the long-shank bolt is engaged in the opening slot 7 of the second adjustment mechanism 4. Based on the geometry and size of the workpiece 10 to be welded, power parameters, and the size and number of turns of the induction coil 5, the first adjustment mechanism 2 can adjust the distance between the induction coil 5 and the workpiece 10 to be welded in the vertical plane (height direction), making the distance between the induction coil 5 and the workpiece 10 to be welded from different devices tend to be consistent, thereby improving the welding quality consistency of welding products such as electrical contact assemblies. After the distance between the induction coil 5 and the workpiece is adjusted, fasteners are used to connect and fix the adjustable end of the height adjustment component 8 to the second adjustment mechanism 4. For example, nuts are used to connect and fix the height adjustment component 8 to the second adjustment mechanism 4 on the upper and lower surfaces (both sides of the second adjustment mechanism) where the opening slot 7 is located.

[0041] When the first adjusting mechanism 2 uses a long-shank bolt, in addition to the long-shank bolt, the first adjusting mechanism 2 may also include three nuts. One nut is used to fasten the height adjusting component 8 to the clamping mechanism 1. After this nut is fastened, it will not move. The other two nuts are used to engage the height adjusting component 8 with the opening slot 7 of the second adjusting mechanism 4. The position of these two nuts on the height adjusting component 8 can move up and down. The long-shank bolt cooperates with these two nuts to change the vertical distance between the induction coil and the workpiece. Of course, in other embodiments, the long strip-shaped height adjusting component 8 can also be other long strip-shaped components, such as shafts, and is not limited to the long-shank bolt mentioned above.

[0042] The fixing mechanism 3 is mainly used to provide fixed support for the first adjusting mechanism 2, the second adjusting mechanism 3, and the clamping mechanism 1. One end of the fixing mechanism 3 is mounted on the housing of the induction welding machine power supply, and the other end is connected to the second adjusting mechanism 4. Various specific structural forms are possible. In a preferred embodiment, refer to... Figure 1 , 2 As shown, the fixing mechanism can be an L-shaped component. After the L-shaped component is installed, it can be fixed to the housing of the induction welding power supply by one side and connected to the second adjustment mechanism by the other side. For example, the short side of the L-shape is fitted to the housing of the induction welding power supply, and the end of the long side of the L-shape is connected to the second adjustment mechanism, thereby forming a horizontal cantilever protruding from the housing of the induction welding power supply. The L-shaped component can be integrally formed or composed of multiple components connected and fixed. Of course, in other embodiments, the fixing mechanism 3 can also be flat, with a hole drilled at one end of the flat plate, and fastened to the housing of the induction welding power supply with screws.

[0043] In the above embodiments of this utility model, the clamping mechanism 1 is made of insulating material, preferably any insulating material such as epoxy resin that can withstand high temperatures of 400°C, is non-conductive and non-magnetic, so that it neither shuns the current nor affects the magnetic field distribution of the induction coil 5.

[0044] In some preferred embodiments, the fixing mechanism 3 and the second adjusting mechanism 4 are made of solid insulating materials, such as acrylic or any other non-conductive and non-magnetic solid insulating material, so that no current shunting occurs.

[0045] The induction coil adjustment device for the induction welding machine provided in the above embodiment uses an insulating material for the clamping mechanism 1, which clamps the copper tube extending from the coil. Through the cooperation of the first adjustment mechanism 2 and the second adjustment mechanism 4, it can precisely control and correct the position of the induction coil when welding irregularly shaped workpieces. This results in more uniform and consistent welding quality for irregular workpieces, significantly improving the yield of products such as electrical contact assemblies and saving production costs. The yield of electrical contact assembly products obtained by induction welding using this invention is 16% higher than that of conventional products, effectively improving the consistency of welding quality in induction welded products and significantly increasing the yield of welded products such as electrical contact assemblies and carbide cutting tools, resulting in significant economic benefits.

[0046] In the description of this utility model, it should be understood that the terms "center", "length", "width", "height", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "bottom", "inner", "outer", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0047] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the order of the indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature.

[0048] In the description of this utility model, "multiple" means two or more, unless otherwise explicitly specified. In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0049] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. It should be understood that this utility model is not limited to the specific embodiments described above. Those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application. The above preferred features can be used in any combination without conflict.

Claims

1. An adjustment device for the induction coil of an induction welding machine, characterized in that, include: The mechanism comprises a clamping mechanism, a first adjusting mechanism, a second adjusting mechanism, and a fixing mechanism, wherein: The clamping mechanism is used to clamp the induction coil; The first adjustment mechanism includes a long strip-shaped height adjustment component. One end of the height adjustment component is fixedly connected to the clamping mechanism. The other end of the height adjustment component is an adjustable end, which is connected to the second adjustment mechanism. The connection position between the two can be adjusted along the height direction of the long strip, thereby adjusting the distance between the induction coil and the workpiece. The second adjustment mechanism includes a rotating shaft, which is rotatably connected to the fixing mechanism. The second adjustment mechanism can rotate horizontally within a preset angle range around the rotating shaft, thereby driving the first adjustment mechanism and the clamping mechanism, causing the induction coil clamped on the clamping mechanism to deflect at an angle.

2. The adjustment device for the induction coil of the induction welding machine according to claim 1, characterized in that, The clamping mechanism includes two or more clamping components, which clamp the middle sections of two parallel copper tubes of the induction coil. The two or more clamping components are connected by bolts or riveting to fix the induction coil.

3. The adjustment device for the induction coil of the induction welding machine according to claim 2, characterized in that, In the clamping mechanism, the length of the clamping component located below the induction coil is greater than the length of the clamping component above the induction coil and a portion of it is exposed. The lower end of the height adjustment component is fixed to the exposed portion of the clamping component below the induction coil.

4. The adjustment device for the induction coil of the induction welding machine according to claim 3, characterized in that, A through hole is provided on the clamping component below the induction coil. The lower end of the elongated height adjustment component passes through the through hole and is connected to the clamping component and fixed by fasteners.

5. The adjustment device for the induction coil of the induction welding machine according to claim 1, characterized in that, After the distance between the induction coil and the workpiece is adjusted, the adjustable end of the height adjustment component is connected and fixed to the second adjustment mechanism using fasteners.

6. The adjustment device for the induction coil of the induction welding machine according to claim 5, characterized in that, The second adjustment mechanism rotates around the rotation axis by less than 90 degrees, thereby causing the first adjustment mechanism and the clamping mechanism to deflect, so that the induction coil clamped by the clamping mechanism can deflect by less than 90 degrees.

7. The adjustment device for the induction coil of the induction welding machine according to claim 1, characterized in that, The second adjustment mechanism further includes a rotating body, and an opening groove is provided on one side of the rotating body. The opening groove accommodates the height adjustment member, and the height adjustment member has a preset range of motion within the opening groove, but the height adjustment member cannot disengage from the opening groove.

8. The adjustment device for the induction coil of the induction welding machine according to claim 7, characterized in that, After the height adjustment component is positioned within the opening slot to satisfy the preset tilt angle of the induction coil, the position of the height adjustment component is fixed to the upper and lower surfaces of the second adjustment mechanism at the location of the opening slot by fasteners.

9. The adjustment device for the induction coil of the induction welding machine according to claim 1, characterized in that, One end of the fixing mechanism is mounted on the housing of the induction welding machine power supply, and the other end is connected to the second adjustment mechanism.

10. The adjustment device for the induction coil of an induction welding machine according to claim 1, characterized in that, The fixing mechanism is made of solid insulating material, and the second adjusting mechanism is made of solid insulating material.

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