Space three-dimensional inner cavity laser green repair metal remanufacturing device

Abstract

The utility model discloses a space three-dimensional inner cavity laser green repairing metal remanufacturing device which comprises a three-jaw chuck used for fixing materials, a wire feeding pipeline chuck and a laser head, a moving rod connected with the laser head is arranged in the wire feeding pipeline chuck, a wire feeding pipeline is arranged at the front end of the wire feeding pipeline chuck, and a wire discharging pipeline is arranged at the rear end of the wire feeding pipeline chuck. A feeding module is arranged at the tail end of the wire feeding pipeline chuck. According to the space three-dimensional inner cavity laser green repairing metal remanufacturing device, a wire material is laid in an inner cavity of a material part, then the surface of the inner cavity of the material part is repaired through a laser head, after repairing is finished, a moving rod rotates to drive the laser head to cut the excessive wire material at the head and the tail of the material part, the surface quality and precision of a port of the material part are guaranteed, and the working efficiency is improved. And meanwhile, the problems of deflection of the wire materials, accurate coupling of laser beams and the like are avoided, and compared with a powder repairing mode, the device adopts a wire feeding machining method and has the effects of being high in material utilization rate, free of powder pollution, more environmentally friendly, high in forming efficiency and high in quality.

Description

TECHNICAL FIELD

[0001] The utility model relates to laser processing technical field, especially in space three -dimensional inner chamber laser green repair metal remanufacturing device. BACKGROUND

[0002] Laser green repair is a kind of laser surface modification technology, is in the workpiece (or base material) surface adds green repair material (powder, wire feeding, preposition etc.), through high energy density laser heating, make green repair material and substrate surface thin layer metal rapidly reach melting state, at this time rely on workpiece's heat conduction, rapidly solidified crystallization is green repair layer, to obtain with base material between metallurgical bonding and dilution rate low and have various characteristics modification layer or repair layer.Compared with surfacing, thermal spraying, electroplating and other traditional surface treatment technology, it has many advantages, such as applicable material system is extensive, green repair layer dilution rate is controllable, green repair layer and base are metallurgical bonding, base thermal deformation is small, process is easy to realize automation etc..Therefore, since 1980s, laser green repair technology has been widely valued at home and abroad, and has obtained the application in many industrial fields.

[0003] The current green repair scheme usually adopts the method of powder feeding or wire feeding. In the green repair scheme using powder feeding, the laser head needs to make multiple winding actions on the inner wall surface, greatly prolonging the repair time. Moreover, due to the low utilization rate of powder, a large amount of powder accumulates on the surface of the repaired layer, causing serious pollution, reducing the surface roughness, and requiring additional processes to clean the attached powder, increasing the process steps and reducing the work efficiency. If the green repair scheme using wire is adopted, the current mainstream machine is a coaxial wire feeding green repair laser head that feeds wire while performing laser repair. The wire feeding method, such as disclosed in CN107627002A, CN107217257A, CN106583726A and CN110158076B, discloses the principle of in-light wire feeding or out-light wire feeding, which mainly functions to simultaneously emit light and wire to achieve metal green repair. Although this solves the problem of powder adhering to the inner wall surface, the existing laser green repair head on the market needs to arrange wire feeding or powder feeding channels, which requires a relatively large space, causing the repair head to be unable to enter the inner cavity of a small-sized part. When the surface of a small-sized inner cavity part needs to be repaired, the repair work cannot be carried out, affecting the further popularization and development of this technology. Moreover, the existing laser green repair head on the market also has the following problems: when the laser green repair head repairs the inner cavity, the repair head can only form a layer of overlap on the inner cavity surface, which requires a lot of experiments to optimize the best overlap rate W, which is time-consuming and inefficient. If the overlap rate is not optimized well, surface defects, poor roughness, internal pores and other phenomena may occur, and the process of repeatedly emitting light and wire needs to be repeated multiple times, resulting in long repair time and low efficiency. Moreover, the precise control of the wire breaking process at the starting end of the part requires high control accuracy, which may cause the green repair process to be interrupted, the green forming to be unable to proceed, and even if the wire breaking process is precisely controlled and meets the requirements of the starting end green repair application, the wire may deviate due to the insufficient rigidity of the wire and the comprehensive effect of heat radiation during the repair process, and the laser beam may not be accurately coupled, which may cause incomplete or irregular cladding layer, resulting in green repair quality that cannot meet the use requirements. Practical new type content

[0004] The utility model provides a space three -dimensional inner chamber laser green repair metal remanufacturing device to solve above -mentioned technical problem, the utility model discloses technical scheme is: a space three -dimensional inner chamber laser green repair metal remanufacturing device, including three -jaw chuck, wire feeding pipeline chuck and laser head, the rear end of three -jaw chuck is detachably provided with material spare, the center of wire feeding pipeline chuck is slidably provided with moving rod, the front end of moving rod is connected with laser head, the front end of wire feeding pipeline chuck is provided with wire feeding pipeline, wire feeding pipeline is provided with a plurality of, a plurality of wire feeding pipeline is around setting with moving rod as the center, the inside of every wire feeding pipeline is provided with wire material, the tail end of wire feeding pipeline chuck is provided with loading module.

[0005] Further, the loading module includes a fixed ring provided at the rear end of the wire feeding pipeline chuck, the rear end of the fixed ring is provided with an annular support, the inside of the annular support is provided with a push rod fixedly connected with the moving rod, and the rear end of the push rod extends to the outside of the annular support.

[0006] Further, the inner ring surface of the annular support is provided with a plurality of feeders, and the plurality of feeders are correspondingly arranged with the wire material.

[0007] Further, the rear end of the push rod is provided with a driving device, the driving device can drive the push rod to move horizontally inside the wire feeding pipeline chuck, and the front end surface of the three-jaw chuck is provided with a pushing device.

[0008] Further, the input end of the laser head is provided with an optical fiber, one end of the optical fiber away from the laser head is provided with a QBH head, the inside of the laser head is provided with a collimating lens capable of correcting light, the bottom of the laser head is provided with a focusing lens capable of focusing light, the inside of the laser head between the collimating lens and the focusing lens is provided with a reflecting lens, and the reflecting lens is arranged at an angle of 45°.

[0009] Further, the length of the wire material is greater than the length of the material piece.

[0010] Further, the inside of the wire feeding pipeline chuck is provided with a clamping groove matched with the wire feeding pipeline, the wire feeding pipeline is fixedly connected with the inner wall of the wire feeding pipeline chuck through the clamping groove, and the inside of the wire feeding pipeline is provided with a through hole for horizontal movement of the wire material.

[0011] Further, a plurality of wire feeding pipelines form an annular wire material cylinder, and the diameter of the annular wire material cylinder is less than the diameter of the material piece.

[0012] Further, the diameter of the fixing ring is smaller than the diameter of the wire feeding pipe chuck, and the input end of the laser head is arranged at the center of the front end of the moving rod.

[0013] Further, the length of the moving rod is greater than the length of the wire.

[0014] The beneficial technical effects of the utility model are:

[0015] 1. The space three-dimensional internal cavity laser green repair metal remanufacturing device, through multiple fixed position wire feeder simultaneously feeding wire, then three-jaw chuck drives the material to move to the outside of the wire, so that the wire is laid in the internal cavity of the material, then the laser head repairs the internal cavity surface of the material, after the repair is completed, the rotating rod drives the laser head to quickly rotate in a ring shape and can cut the excess wire at the head and tail of the material, ensuring the surface quality and precision of the green repair material port, avoiding the problem of accurate control of the starting end in the traditional wire processing method, and the device adopts multiple wire feeders to simultaneously feed wire and cooperates with the laser head which can rotate in a ring shape, so as to accelerate the wire feeding speed and the progress of laser melting wire, compared with the powder repair method, the device has the effect of removing powder pollution and greatly improving the green repair efficiency, and simultaneously uses wire as green repair parts, has the effects of low cost, high material utilization rate and more green and environmental protection, and also does not cause the problems of material waste and high surface roughness caused by powder overflow molten pool.

[0016] 2. The space three-dimensional internal cavity laser green repair metal remanufacturing device, through the method of wire pre-laying, also does not exist the problems of wire deviation in the green repair process and accurate coupling of laser beam, so that the processing quality is more easily guaranteed during the processing process of the device, avoiding the phenomena of spheroidization, early wire breaking or over-melting in the actual green repair process of the traditional processing method, and the wire will deviate and the laser beam cannot be accurately coupled due to the insufficient rigidity of the wire and the comprehensive effect of heat radiation during the repair process, which is easy to cause the problems of incomplete or irregular cladding layer.

[0017] 3. The space three-dimensional internal cavity laser green repair metal remanufacturing device, by separating the laser head and the wire feeder, compared with the traditional wire processing mode, the device does not need to be integrated with the laser head, the wire feeder and the wire feeding channel, so that the device does not need to arrange the wire feeding or powder feeding channel, has the effect of smaller overall size, when carrying out green repair in the internal cavity of smaller parts, the device can easily enter the internal cavity and quickly carry out green repair work, and since the wire material is pre-installed on the surface of the space three-dimensional part internal cavity, the wire material is tightly attached, the optimization of the lap rate W is not needed, the time-consuming and low efficiency effect is avoided, the surface defects, roughness difference and internal porosity phenomenon are avoided, and higher surface roughness and flatness than the existing green repair technology can be obtained, and the work efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a structure three-dimensional schematic diagram of the utility model;

[0019] Figure 2 is a structure three-dimensional schematic diagram of the laser head in the utility model;

[0020] Figure 3 is a structure back view cross-sectional schematic diagram of the laser head in the utility model;

[0021] Figure 4 is a structure three-dimensional schematic diagram of the wire feeding pipe chuck and the feeder in the utility model;

[0022] Figure 5 is a structure three-dimensional schematic diagram of the fixed ring and the feeder in the utility model;

[0023] Figure 6 is a schematic diagram of the laser head cutting the first end of the wire material in the utility model;

[0024] Figure 7 is a schematic diagram of the laser head cutting the tail end of the wire material in the utility model;

[0025] Figure 8 is a schematic diagram of the device starting process in the utility model;

[0026] Figure 9 is a schematic diagram of the laser head processing process in the utility model;

[0027] Figure 10 is a schematic diagram of the device ending process in the utility model;

[0028] Figure 11 is a state schematic diagram of the laser head repairing the internal part in the utility model

[0029] Figure 12Is the relationship diagram of the lap rate and the green repair cladding layer in the utility model.

[0030] The corresponding component names represented by the numbers and letters in the figure:

[0031] 1, three-jaw chuck; 11, material piece; 2, wire feeding pipe chuck; 21, fixed ring; 22, wire feeding pipe; 23, moving rod; 24, push rod; 25, wire material; 26, feeder; 27, annular support; 3, laser head; 31, optical fiber; 32, QBH head; 33, collimating lens; 34, reflecting lens; 35, focusing lens; 36, light focusing point. DETAILED DESCRIPTION

[0032] In order to make the technical means of the utility model more clearly understood, and can be implemented according to the content of the specification, the specific embodiments of the utility model are further described in detail below, the following examples are used to illustrate the utility model, but not to limit the scope of the utility model.

[0033] Referring to the accompanying drawings and examples Figures 1-12 As shown in the figure, a space three-dimensional internal cavity laser green repair metal remanufacturing device, including three-jaw chuck 1, wire feeding pipe chuck 2 and laser head 3, the rear end of three-jaw chuck 1 is detachably provided with material piece 11, the center of wire feeding pipe chuck 2 is slidably provided with moving rod 23, the front end of moving rod 23 is connected with laser head 3, the front end of wire feeding pipe chuck 2 is provided with wire feeding pipe 22, the wire feeding pipe 22 is provided with multiple, multiple wire feeding pipes 22 are arranged around the center of moving rod 23, the inside of each wire feeding pipe 22 is provided with wire material 25, the length of wire material 25 is greater than the length of material piece 11, multiple wire feeding pipes 22 form annular wire material cylinder, and the diameter of annular wire material cylinder is less than the diameter of material piece 11.

[0034] After the material piece 11 is fixed, the wire material 25 can be conveyed into the wire feeding pipe 22 through the setting of the feeder 26, when the moving rod 23 drives the laser head 3 to move to the inside of the material piece 11, the feeder 26 conveys the wire material 25 into the inside of the material piece 11 through the wire feeding pipe 22, then the laser head 3 is started, the laser head 3 emits laser to green repair the inside of the material piece 11, as shown in the figure, Figure 9 As shown in the figure, the laser head 3 rotates and adjusts the direction through the moving rod 23 to repair the inner wall of the material piece 11 without dead angle.

[0035] The tail end of the wire feeding pipe chuck 2 is provided with a feeding module, which comprises a fixed ring 21 arranged at the rear end of the wire feeding pipe chuck 2. The rear end of the fixed ring 21 is provided with an annular support 27. The annular support 27 is internally provided with a push rod 24 fixedly connected with a moving rod 23. The rear end of the push rod 24 extends to the outside of the annular support 27. The inner annular surface of the annular support 27 is provided with a plurality of feeders 26.

[0036] As shown in the accompanying drawings Figure 4 and the accompanying drawings Figure 7 , the plurality of fixed-position feeders 26 simultaneously feed the wire, the moving rod 23 drives the 45° laser head 3 to quickly rotate in a ring shape, and the excess wire 25 at the head and tail of the repair material piece 11 can be cut, which ensures the accuracy of the green repair material piece port, speeds up the wire feeding speed and the progress of laser melting of the wire material, removes the powder pollution, and greatly improves the efficiency of green repair.

[0037] As shown in the accompanying drawings Figure 2 - the accompanying drawings Figure 3 , further, the input end of the laser head 3 is provided with an optical fiber 31. The end of the optical fiber 31 away from the laser head 3 is provided with a QBH head 32. The inside of the laser head 3 is provided with a collimating lens 33 capable of correcting light. The bottom of the laser head 3 is provided with a focusing lens 35 capable of focusing light. The inside of the laser head 3 and between the collimating lens 33 and the focusing lens 35 is provided with a reflecting lens 34, which is arranged at an angle of 45°.

[0038] The QBH head 32 transmits laser light, and the optical fiber 31 is used to emit laser light. The laser emitted by the optical fiber 31 is path-collimated and corrected by the collimating lens 33. Then the reflecting lens 34 changes the path of the light by 45°, so that it passes downward through the focusing lens 35. The focusing lens 35 focuses the light at the light focusing position 36.

[0039] As shown in the accompanying drawings Figure 3 , the black arrows in the figure are light direction indicating arrows.

[0040] Further, the inside of the wire feeding pipe chuck 2 is provided with a clamping groove matched with the wire feeding pipe 22. The wire feeding pipe 22 is fixedly connected with the inner wall of the wire feeding pipe chuck 2 through the clamping groove. The inside of the wire feeding pipe 22 is provided with a through hole for horizontal movement of the wire 25. The length of the moving rod 23 is greater than the length of the wire 25.

[0041] By setting a slot, the wire feeding pipe chuck 2 can hold the wire feeding pipe 22. The wire feeding pipe chuck 2 is connected to the annular bracket 27 through the fixing ring 21. The through hole allows the wire 25 to move easily in the inner cavity of the wire feeding pipe 22. With the design that the length of the moving rod 23 is greater than the length of the wire 25, after the wire 25 is laid on the inner wall of the material 11, the moving rod 23 can drive the laser head 3 to move on the inner wall of the material 11. This ensures that the laser head 3 has sufficient range of motion to ensure processing accuracy when processing the wire 25 on the inner wall of the material 11.

[0042] Furthermore, the diameter of the fixing ring 21 is smaller than the diameter of the wire feeding chuck 2, and the input end of the laser head 3 is located at the center of the front end of the moving rod 23.

[0043] By setting the laser head 3 at the center of the front end of the moving rod 23, when the moving rod 23 rotates, it can directly drive the laser head 3 to rotate around the moving rod 23, so that the light emitted by the laser head 3 can be turned and processed on the inner wall of the workpiece 11.

[0044] Different green remediation overlap rates (W) directly cause depressions between cladding layers. The size of these depressions is directly proportional to the overlap rate (W) (see attached figure). Figure 12 As shown in the figure, W represents the overlap rate, and the shaded area represents the green repair cladding layer. The larger the recessed area, the more it affects the surface smoothness and roughness of the green repair cladding layer. However, the wire material 25 of this utility model is pre-laid on the material 11 (the inner cavity surface of the spatial three-dimensional part), and the wire material 25 is tightly attached to the inner wall of the material 11. There is no need to optimize the overlap rate W. At the same time, it can achieve a higher surface roughness and smoothness than the existing green repair technology, thus improving work efficiency.

[0045] Furthermore, a drive device is provided at the rear end of the push rod 24, which can drive the push rod 24 to move horizontally along the inside of the wire feeding chuck 2, and a push device is provided at the front end of the three-jaw chuck 1.

[0046] As attached Figure 8 As shown, when the device is working, the material 11 is first fixed on the three-jaw chuck 1. Then, the pushing device pushes the material 11, bringing it close to the wire feeding chuck 2 and covering the laser head 3. Subsequently, the feeder 26 conveys the wire 25 to the inner wall of the material 11 through the fixing ring 21 and the wire feeding pipe 22. Then, the laser head 3 is activated to perform green repair on the inner wall of the material 11. During the repair, the moving rod 23 can be rotated by the driving device to make the laser head 3 rotate (as shown in the attached diagram). Figure 9As shown in the figure, while rotating, the driving device can also push the moving rod 23 to move horizontally in the inner cavity of the material piece 11, so that the position of the laser head 3 is changed while the position of the wire material 25 remains fixed, which can further increase the processing precision, prevent the wire material 25 from being deflected due to insufficient rigidity of the wire material 25 and thermal radiation and other comprehensive effects during the repairing process, and the laser beam emitted by the laser head 3 cannot be accurately coupled, thereby causing an incomplete or irregular repair layer, and causing the green repair quality to not meet the use requirements.

[0047] The preferred embodiments of the present application are described above, and are not used to limit the present application. It should be pointed out that, for ordinary skilled people in the technical field, without departing from the technical principles of the present application, a number of improvements and modifications can be made, and these improvements and modifications should be considered as the protection scope of the present application.

Claims

1. A spatial stereoscopic inner cavity laser green repair metal remanufacturing device, characterized in that, The utility model relates to a laser cutting device for material feeding, including three -jaw chuck (1), wire feeding pipe chuck (2) and laser head (3), the rear end of three -jaw chuck (1) is detachably provided with material piece (11), the center of wire feeding pipe chuck (2) is slidably provided with moving rod (23), the front end of moving rod (23) is connected with laser head (3), the front end of wire feeding pipe chuck (2) is provided with wire feeding pipe (22), wire feeding pipe (22) is provided with multiple, multiple wire feeding pipe (22) is around the setting with moving rod (23) as center, the inside of every wire feeding pipe (22) is provided with wire material (25), the tail end of wire feeding pipe chuck (2) is provided with feeding module.

2. The spatial stereoscopic internal cavity laser green repair metal remanufacturing device according to claim 1, characterized in that, The feeding module includes a fixed ring (21) disposed at the rear end of the wire feeding pipe chuck (2), the rear end of the fixed ring (21) is provided with an annular support (27), the inside of the annular support (27) is provided with a push rod (24) fixedly connected with the moving rod (23), and the rear end of the push rod (24) extends to the outside of the annular support (27).

3. The spatially stereoscopic internal cavity laser green repair metal remanufacturing device according to claim 2, characterized in that, The inner ring surface of the annular support (27) is provided with a feeder (26), and the feeders (26) are correspondingly arranged with the wire material (25).

4. The spatially stereoscopic internal cavity laser green repair metal remanufacturing device according to claim 3, characterized in that, The rear end of the push rod (24) is provided with a driving device, which can drive the push rod (24) to move horizontally inside the wire feeding pipe chuck (2), and the front end surface of the three-jaw chuck (1) is provided with a pushing device.

5. The spatially stereoscopic internal cavity laser green repair metal remanufacturing device according to claim 1, characterized in that, The input end of the laser head (3) is provided with an optical fiber (31), the end of the optical fiber (31) away from the laser head (3) is provided with a QBH head (32), the inside of the laser head (3) is provided with a collimating lens (33) capable of correcting light, the bottom of the laser head (3) is provided with a focusing lens (35) capable of focusing light, the inside of the laser head (3) between the collimating lens (33) and the focusing lens (35) is provided with a reflecting lens (34), and the reflecting lens (34) is arranged at an angle of 45°.

6. The spatially stereoscopic internal cavity laser green-repair metal remanufacturing device according to claim 1, characterized in that, The length of the wire material (25) is greater than the length of the material piece (11).

7. The spatially stereoscopic internal cavity laser green repair metal remanufacturing device according to claim 1, characterized in that, The inside of the wire feeding pipe chuck (2) is provided with a clamping groove matched with the wire feeding pipe (22), the wire feeding pipe (22) is fixedly connected with the inner wall of the wire feeding pipe chuck (2) through the clamping groove, and the inside of the wire feeding pipe (22) is provided with a through hole for horizontal movement of the wire material (25).

8. The spatially stereoscopic internal cavity laser green-repair metal remanufacturing device according to claim 1, characterized in that, Multiple wire feeding pipes (22) form a ring-shaped wire material cylinder, and the diameter of the ring-shaped wire material cylinder is less than the diameter of the material piece (11).

9. The spatially stereoscopic internal cavity laser green repair metal remanufacturing device according to claim 2, characterized in that, The diameter of the fixed ring (21) is less than the diameter of the wire feeding pipe chuck (2), and the input end of the laser head (3) is located at the center of the front end of the moving rod (23).

10. The spatially stereoscopic internal cavity laser green repair metal remanufacturing device according to claim 1, characterized in that, The length of the moving rod (23) is greater than the length of the wire material (25).

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