Diameter-adjustable water-cooling induction preheating coil bracket and laser cladding processing equipment

Abstract

The utility model discloses a diameter-adjustable water-cooling induction preheating coil bracket and laser cladding processing equipment, and relates to the technical field of laser welding. The induction preheating coil support comprises a base, a displacement mechanism and a connecting plate. The base is used for being arranged on cladding equipment, the displacement mechanism is connected with the base, the connecting plate is connected with the displacement mechanism, and the connecting plate is used for being connected with the induction coil; wherein the position changing mechanism is used for adjusting the spatial position of the induction coil, and can be suitable for induction coils of different specifications under the condition that an induction coil support is not replaced, so that the induction coil and a workpiece are located at proper positions, and it is ensured that the distance between the laser cladding head and the workpiece of different diameter specifications is matched with the distance between the laser cladding head and the workpiece of different diameter specifications. According to the laser cladding processing equipment, the diameter-adjustable water-cooling induction coil bracket is arranged on the Z-axis stand column of the cladding equipment, so that the position movement of the induction coil in a motion state can be realized, laser cladding and preheating are simultaneously carried out, and the processing efficiency is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of laser welding, in particular to an adjustable-diameter water-cooled induction preheating coil bracket and a laser cladding processing device. Background Art

[0002] Cold work die steel is widely used due to its excellent hardenability and economy, such as cylindrical dies. However, its working conditions are harsh, and it is prone to surface failure phenomena such as fatigue cracking and wear and tear under cyclic alternating loads and thus scrapped. There is an urgent need to solve the high-quality and efficient repair of dies. The current repair method is to laser clad wear-resistant alloys (>55HRC) on the worn die surface. However, the surface hardness of cold work die steel is high (>50HRC), and due to rapid cooling and heating, matrix cracking is likely to occur during the cladding process. To solve the cracking problem, the die to be repaired is usually preheated before cladding to avoid the formation of hardened structures and reduce welding stress and deformation.

[0003] The preheating methods mainly include induction coil heating. When laser cladding processing parts, the distance between the laser cladding head and the parts is usually fixed. For cylindrical dies to be repaired and strengthened, there are many diameter specifications, and due to the limitation of the inductance distance, induction coils of corresponding diameters need to be made. However, a coil bracket can only fix a cylindrical die with one diameter specification (standard diameter ±10mm) and cannot be adjusted in position and applied to dies of other diameters, which will increase the cost of induction coil heating and at the same time the operation of replacing the coil bracket will also reduce the working efficiency. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is that the induction preheating coil bracket in the existing laser cladding processing equipment cannot adapt to induction coils of multiple diameter specifications.

[0005] To solve the above problems, the utility model proposes the following technical solutions:

[0006] An adjustable-diameter water-cooled induction preheating coil bracket for carrying an induction coil, the adjustable-diameter water-cooled induction preheating coil bracket includes a base, a displacement mechanism, and a connecting plate; the base is used to be arranged on the cladding equipment, the displacement mechanism is connected to the base, the connecting plate is connected to the displacement mechanism, and the connecting plate is used to be connected to the induction coil; wherein, the displacement mechanism is used to adjust the position of the induction coil arranged on the connecting plate.

[0007] Further, the displacement mechanism includes a first connecting arm and a second connecting arm, the first connecting arm is rotatably connected to the base and the second connecting arm respectively, and the second connecting arm is rotatably connected to the connecting plate.

[0008] Further, a first flange is provided at the first end of the first connecting arm, and a plurality of first fastening holes are provided on the first flange and are circularly distributed; a plurality of second fastening holes are provided on the base and are circularly distributed, and the plurality of second fastening holes correspond to the plurality of first fastening holes one by one; the first fastening holes and the second fastening holes are connected by a first fastener; wherein, at least one of the first fastening holes and the second fastening holes is an oblong hole.

[0009] Further, a second flange is provided at the second end of the first connecting arm, and a plurality of third fastening holes are provided on the second flange and are circularly distributed. A third flange is provided at the first end of the second connecting arm, and a plurality of fourth fastening holes are provided on the third flange and are circularly distributed; the plurality of third fastening holes correspond to the plurality of fourth fastening holes one by one; the third fastening holes and the fourth fastening holes are connected by a second fastener; wherein, at least one of the third fastening holes and the fourth fastening holes is an oblong hole.

[0010] Further, a fourth flange is provided at the second end of the second connecting arm, and a plurality of fifth fastening holes are provided on the fourth flange and are circularly distributed; the adjustable-diameter water-cooled induction preheating coil bracket further includes a fifth flange, the connecting plate is disposed on the fifth flange, and a plurality of sixth fastening holes are provided on the fifth flange and are circularly distributed. The plurality of fifth fastening holes correspond to the plurality of sixth fastening holes one by one; the fifth fastening holes and the sixth fastening holes are connected by a third fastener; wherein, at least one of the fifth fastening holes and the sixth fastening holes is an oblong hole.

[0011] Further, the adjustable-diameter water-cooled induction preheating coil bracket further includes a rotating bracket, and the fifth flange is rotatably connected to the connecting plate through the rotating bracket.

[0012] Further, the rotating bracket includes a first rotating member and a second rotating member. The first rotating member includes a first connecting portion and a first rotating portion, and the second rotating member includes a second connecting portion and a second rotating portion. The first rotating portion includes a seventh fastening hole, and the second rotating portion includes an eighth fastening hole; the first connecting portion is fixedly connected to the fifth flange and the fourth flange, and the second connecting portion is fixedly connected to the connecting plate; the seventh fastening hole and the eighth fastening hole are connected by a fourth fastener.

[0013] Further, the central angle of the oblong hole is 30-120 degrees.

[0014] Further, a plurality of ninth fastening holes are provided on the connecting plate, the induction coil is provided with a base, and the base is connected to at least two of the ninth fastening holes.

[0015] The present utility model further provides a laser cladding processing device, which includes a Z-axis column and the adjustable-diameter water-cooled induction preheating coil bracket described above. The base of the adjustable-diameter water-cooled induction preheating coil bracket is arranged on the Z-axis column.

[0016] It can be understood that the Z-axis column is a mechanism that drives the laser cladding head of the laser cladding processing device. In the present utility model, the base of the adjustable-diameter water-cooled induction preheating coil bracket is connected to the movement mechanism of the laser cladding head of the laser cladding device, and real-time heating can be achieved by moving along with the cladding position, which is convenient for operation.

[0017] Compared with the prior art, the technical effects that the present utility model can achieve include:

[0018] The adjustable-diameter water-cooled induction preheating coil bracket provided by the present utility model can adjust the spatial position of the induction coil arranged on the connecting plate by adding a displacement mechanism, and can be applicable to induction coils of different specifications without replacing the induction preheating coil bracket, ensuring that the induction coil is in a suitable position with respect to the part to be processed, and ensuring that the distance between the laser cladding head and the parts to be processed with different diameter specifications is adapted.

[0019] The laser cladding processing device provided by the present utility model arranges the adjustable-diameter water-cooled induction preheating coil bracket on the Z-axis column of the cladding device, and it can move forward along with the laser cladding track without the need for personnel to interfere with the movement. It can realize the position movement in the moving state of the induction coil, and realize the simultaneous progress of laser cladding and preheating, effectively improving the heating efficiency and timeliness. For parts to be processed with different diameters, only an induction coil adapted to the diameter specification needs to be used, and there is no need to replace the bracket, effectively improving the processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0021] Figure 1 It is a schematic structural diagram of an adjustable-diameter water-cooled induction preheating coil bracket provided by an embodiment of the present utility model arranged on a laser cladding processing device.

[0022] Figure 2 It is a schematic structural diagram of an adjustable-diameter water-cooled induction preheating coil bracket provided by an embodiment of the present utility model.

[0023] Figure 3 It is a schematic structural diagram of the first connecting arm.

[0024] Figure 4It is a schematic structural diagram of the second connecting arm.

[0025] Figure 5 It is a schematic assembly structure diagram of the second connecting arm and the connecting plate.

[0026] Reference numerals

[0027] Z-axis column 1, base 3, connecting plate 4, rotating bracket 5, induction coil 7, workpiece 8;

[0028] First connecting arm 2, first flange 21, first fastening hole 22, second flange 23, third fastening hole 24;

[0029] Second connecting arm 6, third flange 61, fourth fastening hole 62, fourth flange 63, fifth fastening hole 64;

[0030] Fifth flange 65, sixth fastening hole 66;

[0031] First connecting portion 51, first rotating portion 52, second connecting portion 53, second rotating portion 54;

[0032] Ninth fastening hole 41. Detailed implementation manners

[0033] Next, the technical solutions in the embodiments will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Similar component labels in the drawings represent similar components. Obviously, the embodiments described below are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0034] It should be understood that when used in this specification and the appended claims, the terms "comprises" and "comprising" indicate the presence of the described features, wholes, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components, and / or their combinations.

[0035] It should also be understood that the terms used in the specification of the embodiments of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the embodiments of the present invention. As used in the specification of the embodiments of the present invention and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include the plural forms.

[0036] See Figures 1-5, an embodiment of the present utility model provides an adjustable-diameter water-cooled induction preheating coil bracket for carrying an induction coil. In this embodiment, taking an induction coil adapted to a cylindrical part with a diameter of Φ740mm as an example for description. The adjustable-diameter water-cooled induction preheating coil bracket of this embodiment includes a base 3, a displacement mechanism, and a connecting plate 4; wherein, the displacement mechanism includes a first connecting arm 2 and a second connecting arm 6, the first connecting arm 2 is respectively connected to the base 3 and the second connecting arm 6, and the second connecting arm 6 is rotatably connected to the connecting plate 4; the displacement mechanism is connected to the base 3, the connecting plate 4 is connected to the displacement mechanism, and the connecting plate 4 is used to connect to the induction coil 7; by adjusting the angle between the first connecting arm 2 and the base 3 and adjusting the angle between the first connecting arm 2 and the second connecting arm 6, the spatial position of the induction coil 7 on the connecting plate 4 can be adjusted; the base 3 is obtained by splicing multiple components, all splicing joints are fillet welds, and all welds have no defects such as lack of welding, undercut, and lack of fusion, and the base 3 is fixedly arranged on the cladding equipment.

[0037] The adjustable-diameter water-cooled induction preheating coil bracket provided in this embodiment can adjust the spatial position of the induction coil 7 arranged on the connecting plate 4 by adding a displacement mechanism, and can be applicable to induction coils 7 of different specifications without replacing the induction preheating coil bracket, ensuring that the induction coil 7 and the workpiece 8 are in a suitable position, and ensuring that the distance between the laser cladding head and the workpiece 8 with different diameter specifications is adapted.

[0038] See Figures 2-3 , in this embodiment, the first end of the first connecting arm 2 is provided with a first flange 21, and 4 first fastening holes 22 distributed in a circular shape are arranged on the first flange 21; 4 second fastening holes (not shown in the figure) distributed in a circular shape are arranged on the base 3, and the second fastening holes correspond to the first fastening holes 22 one by one, and are respectively connected and fixed by 4 guide bolts; wherein, the first fastening holes 22 are 60-degree waist-shaped holes, and the second fastening holes are round holes.

[0039] In other embodiments, the number of the first fastening holes 22 and the number of the second fastening holes can be 2 or 3.

[0040] See Figures 3-4 , in this embodiment, the second end of the first connecting arm 2 is provided with a second flange 23, 4 third fastening holes 24 distributed in a circular shape are arranged on the second flange, the first end of the second connecting arm 6 is provided with a third flange 61, and 4 fourth fastening holes 62 distributed in a circular shape are arranged on the third flange 61; the third fastening holes 24 correspond to the fourth fastening holes 62 one by one, and are respectively connected and fixed by 4 guide bolts; wherein, the third fastening holes 24 are round holes, and the fourth fastening holes 62 are 60-degree waist-shaped holes.

[0041] In other embodiments, the number of the third fastening holes 24 and the number of the fourth fastening holes 62 may be two or three.

[0042] Refer to Figures 4-5 , in this embodiment, a fourth flange 63 is provided at the second end of the second connecting arm 6, and the fourth flange 63 is provided with four fifth fastening holes 64 distributed in a circular shape; the adjustable-diameter water-cooled induction preheating coil bracket further includes a fifth flange 65, the connecting plate 4 is connected to the fifth flange 65 and the fourth flange 63, the fifth flange 65 is provided with two sixth fastening holes 66 distributed symmetrically in a circular shape, the fifth fastening holes 64 and the sixth fastening holes 66 correspond to each other one by one, and two guiding bolts are respectively used for connecting and fixing; wherein, the fifth fastening holes 64 are round holes, and the sixth fastening holes 66 are 60-degree waist-shaped holes.

[0043] Please continue to refer to Figure 2 and Figure 5 , in this embodiment, the adjustable-diameter water-cooled induction preheating coil bracket further includes a rotating bracket 5, and the fifth flange 65 is rotatably connected to the connecting plate 4 through the rotating bracket 5. Specifically, the rotating bracket 5 includes a first rotating member and a second rotating member, the first rotating member includes a first connecting portion 51 and a first rotating portion 52, the second rotating member includes a second connecting portion 53 and a second rotating portion 54, the first rotating portion 52 includes a seventh fastening hole (not shown in the figure), and the second rotating portion 54 includes an eighth fastening hole; the first connecting portion 51 is welded and fixed to the fifth flange 65 and the fourth flange 63, and the second connecting portion 53 is welded and fixed to the connecting plate 4; both the seventh fastening hole and the eighth fastening hole are round holes, and the two are connected and fixed by guiding bolts.

[0044] In a specific embodiment, a plurality of ninth fastening holes 41 are provided on the connecting plate 4, the induction coil 7 is provided with a base 71, and the base 71 is connected to at least two of the ninth fastening holes 41.

[0045] It can be understood that the structure of the induction coil 7 includes an induction coil body 72 and a base 71 connecting the induction coil body, and the base 71 is detachably fixed to the connecting plate 4. In a specific embodiment, the length, width and height of the base 71 are 300mm * 300mm * 15mm, and it is an epoxy board. Those skilled in the art can drill holes at the four corners of the epoxy board according to the positions of the plurality of ninth fastening holes 41 provided on the connecting plate 4 so as to adapt to the assembly and fixation. To ensure the effectiveness of the fixation, the length and width of the base 71 should be equal to or greater than the length and width of the connecting plate 4.

[0046] In this embodiment, the ninth fastening holes 41 are circular holes.

[0047] Understandably, for parts that need to be processed with a larger diameter, the adjustment of the spatial position of the induction coil can also be achieved by increasing the angle of the slotted holes on each flange. For example, the number of slotted holes on the flange is changed to 3, and the angle of the slotted holes is set to 120 degrees; or the number of slotted holes on the flange is changed to 2, and the angle of the slotted holes is set to 150 degrees. In addition, the adjustment of the spatial position of the induction coil can also be achieved by reducing the number of connecting parts on the flange. For example, the number of guide bolts is adjusted from 4 to 2.

[0048] The adjustable-diameter water-cooled induction preheating coil bracket provided in this embodiment can be applied to the laser cladding of cylindrical workpieces with a diameter ranging from 300 mm to 900 mm by using the adjustment of the displacement mechanism, avoiding the problem of manufacturing corresponding coil brackets for parts with different diameters, reducing the bracket manufacturing cost, and improving the production efficiency. The distance between the induction coil with different diameters and each position of the workpiece can be adjusted to be basically the same. The adjustment speed of replacing the induction coil is fast, the operation is simple, the induction heating efficiency is improved, and the cracking tendency during the laser cladding of brittle materials is reduced. The adjustable-diameter water-cooled induction preheating coil bracket of the present utility model has been installed and used, and laser cladding of multiple products has been completed, and it can also be extended to industries such as welding and induction hardening.

[0049] Please continue to refer to Figure 1 , the embodiment of the present utility model also provides a laser cladding processing device, including a Z-axis column 1 and the adjustable-diameter water-cooled induction preheating coil bracket described above, and the base 3 of the adjustable-diameter water-cooled induction preheating coil bracket is arranged on the Z-axis column 1.

[0050] Understandably, the Z-axis column 1 is a mechanism that drives the laser cladding head of the laser cladding processing device. The present utility model connects the base 3 of the adjustable-diameter water-cooled induction preheating coil bracket to the movement mechanism of the laser cladding head of the laser cladding device, and can realize real-time heating along with the movement of the cladding position, which is convenient for operation.

[0051] The working principle of the laser cladding processing device containing the adjustable-diameter water-cooled induction preheating coil bracket provided in this embodiment is described as follows: The user first determines a suitable position on the Z-axis column 1 of the laser cladding processing device to drill holes according to the position of the threaded holes on the base 3, fixes the base 3 on the Z-axis column 1, and fixes the induction coil 7 adapted to the diameter of the part to be repaired on the connecting plate 4. By adjusting the guiding positions of the guide bolts at each connection, the first connecting arm 2, the second connecting arm 6, and the rotating bracket 5 are rotated until the induction coil 7 rotates to a vertical state and the distances from each preheating position of the workpiece 8 in the circumferential direction are the same (the distance is about 10 mm), and then multiple guide bolts at each connection are fixed and tightened.

[0052] The laser cladding processing equipment of this embodiment is provided with an adjustable-diameter water-cooled induction preheating coil bracket on the Z-axis column 1 of the cladding equipment. It can move forward along with the laser cladding track without the need for personnel to interfere with the movement, and can achieve the position movement of the induction coil under the moving state, realizing the simultaneous progress of laser cladding and preheating, effectively improving the heating efficiency and timeliness. For parts to be processed with different diameters, only an induction coil adapted to the diameter specification needs to be used, and there is no need to replace the bracket, effectively improving the processing efficiency.

[0053] In the above embodiments, the descriptions of each embodiment have their own emphases. For parts not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0054] The above is the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention can easily think of various equivalent modifications or substitutions, and these modifications or substitutions should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

1. An adjustable diameter water-cooled induction preheating coil support, characterized in that: Used to carry the induction coil, the adjustable diameter water-cooled induction preheating coil bracket includes a base, a displacement mechanism and a connecting plate; the base is used to be arranged on the cladding equipment, the displacement mechanism is connected to the base, the connecting plate is connected to the displacement mechanism, and the connecting plate is used to be connected to the induction coil; wherein, the displacement mechanism is used to adjust the position of the induction coil arranged on the connecting plate.

2. The adjustable diameter water-cooled induction preheating coil support according to claim 1 is characterized in that: The displacement mechanism includes a first connecting arm and a second connecting arm. The first connecting arm is rotatably connected to the base and the second connecting arm respectively, and the second connecting arm is rotatably connected to the connecting plate.

3. The adjustable diameter water-cooled induction preheating coil support according to claim 2 is characterized in that: A first flange is provided at the first end of the first connecting arm, and a plurality of first fastening holes distributed in a circular shape are provided on the first flange; a plurality of second fastening holes distributed in a circular shape are provided on the base, and the plurality of second fastening holes correspond one-to-one to the plurality of first fastening holes; the first fastening hole and the second fastening hole are connected by a first fastener; wherein at least one of the first fastening hole and the second fastening hole is a waist hole.

4. The adjustable diameter water-cooled induction preheating coil support according to claim 3 is characterized in that: A second flange is provided at the second end of the first connecting arm, and a plurality of third fastening holes are provided at the second flange in a circular distribution; a third flange is provided at the first end of the second connecting arm, and a plurality of fourth fastening holes are provided at the third flange in a circular distribution; the plurality of third fastening holes correspond to the plurality of fourth fastening holes one by one; the third fastening holes and the fourth fastening holes are connected by a second fastener; wherein at least one of the third fastening holes and the fourth fastening holes is a waist hole.

5. The adjustable diameter water-cooled induction preheating coil support according to claim 4 is characterized in that: A fourth flange is provided at the second end of the second connecting arm, and a plurality of fifth fastening holes are provided on the fourth flange. The adjustable diameter water-cooled induction preheating coil bracket also includes a fifth flange, and the connecting plate is provided on the fifth flange. The fifth flange is provided with a plurality of sixth fastening holes distributed in a circular shape, and the plurality of fifth fastening holes correspond one to one with the plurality of sixth fastening holes. The fifth fastening hole and the sixth fastening hole are connected by a third fastener. At least one of the fifth fastening hole and the sixth fastening hole is a waist hole.

6. The adjustable diameter water-cooled induction preheating coil support according to claim 5, characterized in that: The adjustable diameter water-cooled induction preheating coil bracket also includes a rotating bracket, and the fifth flange is rotatably connected to the connecting plate via the rotating bracket.

7. The adjustable diameter water-cooled induction preheating coil support according to claim 6, characterized in that: The rotating bracket includes a first rotating member and a second rotating member, the first rotating member includes a first connecting portion and a first rotating portion, the second rotating member includes a second connecting portion and a second rotating portion, the first rotating portion includes a seventh fastening hole, and the second rotating portion includes an eighth fastening hole; the first connecting portion is fixedly connected to the fifth flange and the fourth flange, and the second connecting portion is fixedly connected to the connecting plate; the seventh fastening hole and the eighth fastening hole are connected by a fourth fastener.

8. The adjustable diameter water-cooled induction preheating coil support according to any one of claims 3 to 5, characterized in that: The central angle of the waist hole is 30-120 degrees.

9. The adjustable diameter water-cooled induction preheating coil support according to claim 1, characterized in that: The connecting plate is provided with a plurality of ninth fastening holes, the induction coil is provided with a base, and the base is connected to at least two of the ninth fastening holes.

10. A laser cladding processing equipment, characterized in that: It comprises a Z-axis column and an adjustable diameter water-cooled induction preheating coil bracket as described in any one of claims 1 to 9, wherein the base of the adjustable diameter water-cooled induction preheating coil bracket is arranged on the Z-axis column.

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