Damage repairing device for mechanical parts

Abstract

The invention discloses a mechanical part damage repairing device, and relates to the technical field of equipment manufacturing and maintenance. The device comprises a transmission frame, a plurality of vibration sensors are installed at the bottom end of a bearing plate, a partition mechanism is installed at the bottom end of the transmission frame, an adjusting mechanism is installed on the side face of the transmission frame and comprises a back plate and an ultrasonic assembly, and a laser cladding mechanism is installed on the outer side of the back plate. According to the automatic feeding and conveying device, the conveying frame is arranged to convey the base plate, meanwhile, the base plate can be partitioned through the partition mechanism, and therefore the purpose of automatic feeding and conveying of the base plate can be achieved, then the transverse line position, height and angle of the ultrasonic assembly can be adjusted through the adjusting mechanism, and adjustment can be conducted according to the site situation; the ultrasonic assembly is fixedly installed, the optimal ultrasonic vibration applying position can be selected according to the shape and the position of a repaired workpiece, and therefore the purpose of convenient adjustment is achieved, and finally a base plate is machined through the laser cladding mechanism.

Description

Technical Field

[0001] The invention relates to the technical field of equipment manufacturing and maintenance, and in particular to a device for repairing damaged mechanical parts. Background Art

[0002] Laser additive repair, also known as laser cladding or laser directed energy deposition, is a repair process that applies laser additive manufacturing technology to the repair of mechanical parts damage. It takes the locally damaged mechanical parts caused by manufacturing defects, processing damage, and service defects as the matrix, and completes the local damage repair by cladding alloy materials layer by layer on the defective parts without damaging the overall performance of the mechanical parts, restoring the proper geometric shape and mechanical properties of the mechanical parts so that they can be put into use again. This technology uses a laser beam as a heat source to melt the alloy powder to form a molten pool, which is then metallurgically bonded to the substrate after solidification. It has the advantages of low dilution rate, dense structure, high efficiency and energy saving. While achieving rapid and precise forming of damaged mechanical parts, it can also improve the hardness, wear resistance and corrosion resistance of the cladding coating. It is the best method for repairing mechanical parts. During the laser additive repair process, the laser beam is focused on the surface of the substrate through the optical path system to form a molten pool. The metal powder is ejected from the powder feeding nozzle of the processing head and converges into the molten pool, and is melted under the protection of an inert gas (such as argon). As the laser spot moves, the metal powder fed into the molten pool is repeatedly melted and metallurgically bonded to the substrate to form a deposition layer. After completing a single-layer deposition according to the path planned by the system, the processing head is raised to a corresponding height to deposit the next layer, and metallurgical bonding from a single layer to multiple layers is repeatedly achieved layer by layer, thereby achieving the manufacture or repair of parts. Laser additive repair technology uses laser beam as heat source to melt powder and part of matrix material to form a molten pool and achieve metallurgical bonding with the matrix. It has the advantages of low dilution rate, dense organization and high efficiency and energy saving. While realizing the rapid and precise forming of damaged mechanical parts, it can also improve the hardness, strength and corrosion resistance of the cladding layer. It is the best method for repairing equipment parts and has a very broad application prospect in the field of equipment manufacturing and maintenance. Ultrasonic waves have unique acoustic effects and cavitation effects when propagating in liquid metal. Applying ultrasonic vibration during the solidification process of liquid metal can transform the solidified structure from coarse columnar crystals to uniform and fine equiaxed crystals, significantly improve the component segregation phenomenon, and greatly reduce defects such as pores and inclusions. Ultrasonic-assisted laser additive repair can realize the microstructure regulation of the laser additive repair layer, promote the refinement of the cladding layer, inhibit the precipitation of secondary phases, and make the distribution of strengthening particles more uniform, inhibit defects such as holes and cracks, thereby improving the hardness, wear resistance and oxidation resistance of the cladding layer. A single laser additive repair technology is difficult to meet the quality requirements of high-temperature alloy repair, and the defect suppression capability of ultrasonic technology will provide the possibility for high-quality repair of high-temperature alloys. Ultrasonic vibration-assisted laser additive repair technology provides a solution for the high-quality development of laser additive repair technology.There is still a large gap between ultrasonic vibration-assisted laser additive repair technology and practical application. It is urgent to develop an ultrasonic vibration application method with high energy utilization, stable process, and good cladding coating formation, so that the ultrasonic vibration-assisted laser additive repair system can operate efficiently and stably. At the same time, the technical advantages of digital signal processing and digital control should be brought into play to develop auxiliary equipment suitable for laser additive repair, solve the problem of ultrasonic vibration application, realize precise control of the ultrasonic input energy of the molten pool, and avoid problems such as uneven microstructure and performance of the cladding coating due to improper application of ultrasonic vibration.

[0003] Previous experiments have shown that both contact and non-contact ultrasonic vibration application methods can improve the coating structure and performance to a certain extent, but these two ultrasonic vibration application methods are not perfect and still have some problems. The ultrasonic wave of the non-contact ultrasonic vibration assisted laser cladding device propagates in the air, and the application angle is flexible and unrestricted, but the ultrasonic wave attenuates seriously, the energy utilization rate is low, and the ultrasonic power required is large when the input energy inside the molten pool is large enough. The vibration head of the contact ultrasonic vibration assisted laser cladding device is in direct contact with the substrate, the ultrasonic wave propagation impedance in the substrate is small, the energy attenuation during the propagation process is small, and the ultrasonic energy utilization rate is high. However, the distance between the ultrasonic vibration input position and the molten pool in this method has a great influence on the coating structure and performance. When the distance is large, the energy input into the molten pool is small, the ultrasonic action capacity is limited, and it is easy to have uneven vibration distribution, thereby affecting the cladding quality. When the distance is small, the input energy is too high, which can easily cause the molten pool melt to splash, and it is inconvenient to adjust the angle and position of the ultrasonic component, and it is inconvenient to adjust the contact method according to the actual situation. At the same time, it is not convenient to automatically load and transmit the carrier plate and the substrate, which will reduce the work efficiency. In view of the above problems, the inventor proposes a mechanical parts damage repair device to solve the above problems. Summary of the invention

[0004] In order to solve the problem that it is inconvenient to adjust the angle and position of the ultrasonic component and to automatically load and transport the substrate; the purpose of the present invention is to provide a mechanical parts damage repair device.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions: a mechanical parts damage repair device, including a transmission frame, a plurality of supporting plates are slidably provided on the inner side of the transmission frame, a substrate is installed in the supporting plate, a plurality of vibration sensors are installed on the bottom end of the supporting plate, a barrier mechanism is installed on the bottom end of the transmission frame, an adjustment mechanism is installed on the side of the transmission frame, the adjustment mechanism includes a back plate and an ultrasonic component, and a laser cladding mechanism is installed on the outer side of the back plate.

[0006] Preferably, a sliding groove is provided in the back plate, a sliding block is movably inserted in the sliding groove, an operation box is fixedly provided on the outer side of the sliding block, a transmission rod is rotatably provided in the operation box, a connecting rod is movably inserted in the transmission rod, a groove is fixedly provided on the outer side of the connecting rod, the connecting rod is movably inserted in the sliding block, the transmission rod is movably sleeved in the groove, a fixed disk is fixedly provided on the end of the connecting rod, the fixed disk is fixedly connected to the ultrasonic component on the side away from the connecting rod, a No. 1 worm gear is fixedly sleeved on the outer side of the transmission rod, a No. 1 worm gear is rotatably provided in the operation box, and the No. 1 worm gear is meshed with the No. 1 worm gear, and a No. 1 worm gear is meshed with the No. 1 worm gear, and a No. 2 motor is installed on the top of the operation box, and the end of the No. 2 motor output shaft is inserted through the operation box and fixedly connected to the No. 1 worm gear, a rotating ring is rotatably provided on the outer side of the fixed disk, an electric cylinder is installed on the operation box, and the electric cylinder output The end of the shaft is fixedly connected to the rotating ring, and an L-shaped plate is fixedly provided on the side of the back plate away from the transmission frame, and a second rotating rod is rotatably provided in the L-shaped plate, a rotating plate is fixedly provided on the outer side of the No. 2 rotating rod, and a fixing rod is fixedly provided on the outer side of the rotating plate; a square plate is fixedly provided on the side of the sliding block away from the operating box, and a square groove is opened in the square plate, and the fixing rod is movably inserted in the square groove; an auxiliary rod is fixedly provided on the side of the back plate close to the square plate, and the square plate is movably inserted in the auxiliary rod; a rotating shaft and a No. 2 worm gear are rotatably provided in the L-shaped plate, and the rotating shaft and the No. 2 rotating rod are connected through a synchronous wheel and a synchronous belt transmission; a No. 2 worm gear is fixedly provided on the outer side of the rotating shaft, and the No. 2 worm gear and the No. 2 worm gear are meshed with each other, and a No. 3 motor is installed at the bottom end of the L-shaped plate, and the end of the output shaft of the No. 3 motor is inserted through the L-shaped plate and fixedly connected to the No. 2 worm gear.

[0007] The outer fixing sleeve of the two guide rods is provided with a spring, and the end portion of the guide rod is fixed with a toothed plate, and the end portion of the output shaft of the two guide rods is inserted into the outer fixing sleeve of the two guide rods through the toothed plate.

[0008] A system used in a mechanical parts damage repair device comprises the following steps: S1. Laser head: Model LPT-03-CCD, with CCD module, can be assisted by CCD positioning to observe the state of the molten pool. The laser print head adopts a fully enclosed design, the light spot can be adjusted front and back, left and right, and it is convenient to adjust the light-powder coupling. The laser print head uses imported lenses and is equipped with a full water-cooling structure, which can print continuously and stably. The bottom copper nozzle adopts a coaxial ring powder feeding device, the light and powder are coaxial, and the powder utilization rate is high; S2. Powder feeding system: The powder feeding system includes two powder feeders and their supporting air supply system. It adopts carrier gas powder feeding. The unique multi-hole powder feeding method makes the powder feeding amount stable, which is particularly suitable for fine printing. The powder feeder is driven by a servo motor, and the speed can be accurately set. The powder feeding system is equipped with a pressure regulating valve and a pressure switch. The two powder feeders can feed powder at the same time or separately. They are respectively equipped with high-precision flow switches, with an adjustable flow rate of 0.5-25L / min and a low flow alarm function; S3, Laser: The equipment uses 3000W fiber laser, with high photoelectric conversion rate and stable beam; standard QBH fiber interface, plug and play; S4, water cooling system: The water cooling system mainly refers to the cooling of the laser and laser print head. The low-temperature water belt has a heating function and can provide water cooling for both at the same time; S5, Lubrication system and oil cooling system: The lubrication system mainly provides lubrication for the three-axis guide rails, intensive processing, and reduces the difficulty of maintenance; the oil cooling system is mainly used to cool the spindle to reduce the problem of precision loss caused by temperature rise; S6. Electrical control system: The electrical control system adopts Wuhan Huazhong five-axis CNC system, equipped with professional modules, standard CNC panel, Chinese interface, tool change, powder feeding, light output and other secondary development programs are built-in, safety interlock, only one code is needed to realize all functional control; S7. Ultrasonic vibration system: The ultrasonic vibration platform includes an ultrasonic generator and a mechanical sensor.

[0009] Compared with the prior art, the present invention has the following beneficial effects: 1. In the present invention, a transmission frame is provided to transmit the substrate, and the substrate can be blocked by a blocking mechanism, so as to achieve the purpose of automatic feeding and transmission of the substrate. Then, the ultrasonic component can be adjusted in horizontal position, height and angle by an adjustment mechanism, and can be adjusted according to the situation on site. The ultrasonic component adopts a fixed installation method, and the best ultrasonic vibration application position can be selected according to the shape and position of the repaired workpiece, so as to achieve the purpose of convenient adjustment. Finally, the substrate is processed by a laser cladding mechanism; 2. In the present invention, by arranging the connecting rod, the transmission rod, the square plate and the electric cylinder and other structures to cooperate with each other, the ultrasonic component can be adjusted in angle, position and height, and the working mode of the ultrasonic component can be adjusted in time, so that the operation can be performed better, thereby solving the problems of cracking, pores and coarse grains that are easily generated in the laser additive repair process. After applying ultrasonic vibration, the actual ultrasonic vibration in the workpiece is dynamically monitored to achieve timely adjustment of ultrasonic parameters; 3. In the present invention, by setting structures such as a baffle, a No. 1 rotating rod, a gear, a toothed plate, a threaded rod, a wedge block and a guide rod, the baffle can be controlled to rotate, thereby controlling the carrier plate and the substrate, and further controlling the loading and transmission of the substrate. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0011] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a side schematic diagram of the overall structure of the present invention; Figure 3 This is a schematic diagram of the structure of the barrier assembly of the present invention; Figure 4 It is a cross-sectional schematic diagram of the back plate and its connection structure of the present invention; Figure 5 For the present invention Figure 4 The enlarged structural diagram at A in the middle; Figure 6 For the present invention Figure 4 Enlarged structural diagram at B in the middle.

[0012] In the figure: 1. transmission frame; 101. bearing plate; 102. base plate; 103. vibration sensor; 2. barrier mechanism; 201. mounting frame; 202. limit frame; 203. guide rod; 204. spring; 205. tooth plate; 206. connecting block; 207. external slideway; 210. No. 1 rotating rod; 211. baffle plate; 212. gear; 220. threaded rod; 221. wedge block; 222. No. 1 motor; 3. adjustment mechanism; 301. back plate; 302. sliding groove; 303. sliding block; 304. operation box; 305, transmission rod; 306, connecting rod; 307, fixed plate; 308, ultrasonic component; 310, worm gear No. 1; 311, worm wheel No. 1; 312, motor No. 2; 313, electric cylinder; 314, rotating ring; 320, square plate; 321, L-shaped plate; 322, rotating rod No. 2; 323, rotating plate; 324, fixed rod; 325, square groove; 326, rotating shaft; 327, worm gear No. 2; 328, worm wheel No. 2; 329, motor No. 3; 330, auxiliary rod; 4, laser cladding mechanism. DETAILED DESCRIPTION

[0013] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0014] like Figure 1-6As shown, the present invention provides a mechanical parts damage repair device, including a transmission frame 1: a plurality of bearing plates 101 are slidably provided inside the transmission frame 1, which are used to carry and install a substrate 102, and an online temperature sensor is installed in the substrate 102, which can realize online monitoring of the temperature during the laser additive repair process so as to adjust the ultrasonic and laser processes, the substrate 102 is installed in the bearing plate 101, and a plurality of vibration sensors 103 are installed at the bottom of the bearing plate 101, and a barrier mechanism 2 is installed at the bottom of the transmission frame 1, and the barrier mechanism 2 is used to barrier the bearing plate 101, so as to control the movement of the bearing plate 101 An adjusting mechanism 3 is installed on the side of the transmission frame 1. The adjusting mechanism 3 can adjust the ultrasonic component 308 in all directions, so that it can be adjusted according to different situations, and then it can work better. The adjusting mechanism 3 includes a back plate 301 and an ultrasonic component 308. A laser cladding mechanism 4 is installed on the outer side of the back plate 301. The laser cladding mechanism 4 melts metal powder or wire by laser and deposits it on the surface of the workpiece to form a coating or repair layer. During the laser cladding process, the laser beam is focused on a specific area on the surface of the workpiece. The metal powder or wire is instantly melted under the laser irradiation and combined with the surface of the workpiece to form a dense coating.

[0015] A sliding groove 302 is provided in the back plate 301, a sliding block 303 is movably inserted in the sliding groove 302, an operation box 304 is fixedly provided on the outer side of the sliding block 303, a transmission rod 305 is rotatably provided in the operation box 304, a connecting rod 306 is movably inserted in the transmission rod 305, a groove is fixedly provided on the outer side of the connecting rod 306, the connecting rod 306 is movably and rotatably inserted in the sliding block 303, the transmission rod 305 is movably sleeved in the groove, a fixed plate 307 is fixedly provided on the end of the connecting rod 306, and the fixed plate 307 is fixedly connected to the ultrasonic component 308 on the side away from the connecting rod 306.

[0016] By adopting the above technical solution, the sliding block 303 can move in the sliding groove 302, and then the height of the ultrasonic component 308 can be adjusted, and then the connection method between the supporting plate 101 and it can be adjusted, thereby solving the problems of cracking, pores and coarse grains that are easily generated during the laser additive repair process.

[0017] A worm gear 311 is fixedly sleeved on the outer side of the transmission rod 305, a worm gear 310 is rotatably provided in the operation box 304, and the worm gear 310 and the worm gear 311 are meshed with each other, a motor 312 is installed on the top of the operation box 304, the output shaft end of the motor 312 is inserted through the operation box 304 and fixedly connected to the worm gear 310, a rotating ring 314 is rotatably provided on the outer side of the fixed disk 307, an electric cylinder 313 is installed on the operation box 304, and the output shaft end of the electric cylinder 313 is fixedly connected to the rotating ring 314.

[0018] By adopting the above technical solution, the output shaft end of the second motor 312 rotates to drive the ultrasonic component 308 to adjust the angle, and the position of the ultrasonic component 308 is adjusted through the electric cylinder 313, thereby achieving the purpose of convenient adjustment.

[0019] An L-shaped plate 321 is fixedly provided on the side of the back plate 301 away from the transmission frame 1, and a second rotating rod 322 is rotatably provided inside the L-shaped plate 321. A rotating plate 323 is fixedly provided on the outer side of the second rotating rod 322, and a fixed rod 324 is fixedly provided on the outer side of the rotating plate 323. A square plate 320 is fixedly provided on the side of the sliding block 303 away from the operation box 304, and a square groove 325 is opened in the square plate 320, and the fixed rod 324 is movably inserted in the square groove 325.

[0020] By adopting the above technical solution, the second rotating rod 322 rotates to drive the square plate 320 to move up and down, and then drives the sliding block 303 to slide in the sliding groove 302, so as to achieve the purpose of adjusting its height.

[0021] An auxiliary rod 330 is fixedly provided on one side of the back plate 301 close to the square plate 320, and the square plate 320 is movably inserted in the auxiliary rod 330. A rotating shaft 326 and a second worm gear 327 are rotatably provided in the L-shaped plate 321. The rotating shaft 326 and the second rotating rod 322 are connected by a synchronous wheel and a synchronous belt transmission. A second worm gear 328 is fixedly sleeved on the outer side of the rotating shaft 326, and the second worm gear 327 is meshed with the second worm gear 328. A third motor 329 is installed at the bottom end of the L-shaped plate 321, and the end of the output shaft of the third motor 329 is inserted through the L-shaped plate 321 and fixedly connected to the second worm gear 327.

[0022] By adopting the above technical solution, the output shaft end of the third motor 329 rotates to drive the second rotating rod 322 to rotate, so as to provide power output.

[0023] The barrier mechanism 2 includes a mounting frame 201, which is fixedly connected to the transmission frame 1. Limiting frames 202 are fixedly provided on both sides of the inner wall of the mounting frame 201. Guide rods 203 are movably inserted in the two limiting frames 202. A connecting block 206 is fixedly sleeved on the outer side of the guide rod 203. A spring 204 is movably sleeved on the outer side of the guide rod 203. A tooth plate 205 is fixedly provided on the end of the guide rod 203. A symmetrically distributed rotating rod No. 1 210 is rotatably provided in the mounting frame 201. A baffle 211 is fixedly sleeved on the outer side of the rotating rod No. 1 210. The two baffles 211 are located on both sides of the transmission frame 1.

[0024] By adopting the above technical solution, the guide rod 203 can drive the baffle plate 211 to rotate, thereby controlling the carrying plate 101 .

[0025] The inner wall of the mounting frame 201 is fixedly provided with symmetrically distributed external slideways 207, the tooth plate 205 is movably inserted in the external slideway 207, the outer side of the No. 1 rotating rod 210 is fixedly sleeved with a gear 212, the tooth plate 205 and the gear 212 are meshed with each other, a threaded rod 220 is rotatably provided in the mounting frame 201, the outer side of the threaded rod 220 is fixedly sleeved with a wedge block 221, the two guide rods 203 are located on both sides of the wedge block 221, and a No. 1 motor 222 is installed on the outer side of the mounting frame 201, and the end of the output shaft of the No. 1 motor 222 is inserted through the mounting frame 201 and fixedly connected to the threaded rod 220.

[0026] By adopting the above technical solution, the output shaft end of the No. 1 motor 222 rotates to drive the wedge block 221 to move, and then drives the guide rod 203 to move, so as to provide power output.

[0027] A system used in a mechanical parts damage repair device comprises the following steps: S1. Laser head: Model LPT-03-CCD, with CCD module, can be assisted by CCD positioning to observe the state of the molten pool. The laser print head adopts a fully enclosed design, the light spot can be adjusted front and back, left and right, and it is convenient to adjust the light-powder coupling. The laser print head uses imported lenses and is equipped with a full water-cooling structure, which can print continuously and stably. The bottom copper nozzle adopts a coaxial ring powder feeding device, the light and powder are coaxial, and the powder utilization rate is high; S2. Powder feeding system: The powder feeding system includes two powder feeders and their supporting air supply system. It adopts carrier gas powder feeding. The unique multi-hole powder feeding method makes the powder feeding amount stable, which is particularly suitable for fine printing. The powder feeder is driven by a servo motor, and the speed can be accurately set. The powder feeding system is equipped with a pressure regulating valve and a pressure switch. The two powder feeders can feed powder at the same time or separately. They are respectively equipped with high-precision flow switches, with an adjustable flow rate of 0.5-25L / min and a low flow alarm function; S3, Laser: The equipment uses 3000W fiber laser, with high photoelectric conversion rate and stable beam; standard QBH fiber interface, plug and play; S4, water cooling system: The water cooling system mainly refers to the cooling of the laser and laser print head. The low-temperature water belt has a heating function and can provide water cooling for both at the same time; S5, Lubrication system and oil cooling system: The lubrication system mainly provides lubrication for the three-axis guide rails, intensive processing, and reduces the difficulty of maintenance; the oil cooling system is mainly used to cool the spindle to reduce the problem of precision loss caused by temperature rise; S6. Electrical control system: The electrical control system adopts Wuhan Huazhong five-axis CNC system, equipped with professional modules, standard CNC panel, Chinese interface, tool change, powder feeding, light output and other secondary development programs are built-in, safety interlock, only one code is needed to realize all functional control; S7. Ultrasonic vibration system: The ultrasonic vibration platform includes an ultrasonic generator and a mechanical sensor.

[0028] Working principle: When the substrate 102 is inspected and operated, the first motor 222 is started first, so that the first motor 222 starts to work, the output shaft end of the first motor 222 rotates to drive the threaded rod 220 to rotate, the threaded rod 220 rotates to drive the wedge block 221 to move, the wedge block 221 moves, and then the guide rod 203 moves inward under the action of its inclined surface and the spring 204, the guide rod 203 moves to drive the tooth plate 205 to move in the external slideway 207, and the tooth plate 205 moves with The movable gear 212 rotates, and the gear 212 rotates to drive the No. 1 rotating rod 210 to rotate, and the No. 1 rotating rod 210 rotates to drive the baffle 211 to rotate, and the baffle 211 rotates to lose the limit of the carrier plate 101 and the substrate 102, and then the carrier plate 101 is moved horizontally by the transmission frame 1, so that the substrate 102 moves to the bottom of the ultrasonic component 308 for subsequent processing, and then the baffle 211 can be reset, and then the next carrier plate 101 can be blocked, so as to achieve the purpose of automatic loading and transmission; When the substrate 102 is operated, the electric cylinder 313 is started to make the electric cylinder 313 start working, and the output end of the electric cylinder 313 drives the rotating ring 314 to move horizontally, and the rotating ring 314 moves horizontally to drive the fixed plate 307 to move, and at the same time makes the connecting rod 306 slide in the transmission rod 305, so that the ultrasonic component 308 can be moved horizontally to a suitable position, and then the second motor 312 is started to make the second motor 312 start working, and the output shaft end of the second motor 312 rotates to drive the first worm The rod 310 rotates, the No. 1 worm 310 rotates to drive the mutually meshing No. 1 worm wheel 311 to rotate, the No. 1 worm wheel 311 rotates to drive the transmission rod 305 to rotate, the transmission rod 305 rotates through the groove on the outer side of the connecting rod 306 to drive the connecting rod 306 to rotate, and then the angle of the ultrasonic component 308 can be adjusted. When the height of the ultrasonic component 308 needs to be adjusted, the No. 3 motor 329 is started to make the No. 3 motor 329 start working, the output shaft end of the No. 3 motor 329 rotates to drive the No. 2 worm 327 to rotate, and the No. 2 worm 327 rotates. The rotation of the No. 1 worm gear 327 drives the mutually meshing No. 2 worm gear 328 to rotate, and the rotation of the No. 2 worm gear 328 drives the rotating shaft 326 to rotate. The rotation of the rotating shaft 326 causes the No. 2 rotating rod 322 to rotate through the synchronous wheel and the synchronous belt. The rotation of the No. 2 rotating rod 322 drives the rotating plate 323 to rotate, and the rotation of the rotating plate 323 drives the fixed rod 324 to rotate. The fixed rod 324 rotates through the square groove 325 to drive the square plate 320 to move vertically with the assistance of the auxiliary rod 330. The vertical movement of the square plate 320 can drive the sliding block 303 to slide in the sliding groove 302, so that the height of the ultrasonic component 308 can be adjusted, so as to facilitate the adjustment of the height, angle and position of the ultrasonic component 308. When the ultrasonic component 308 is fixedly installed, the best ultrasonic vibration application position can be selected according to the shape and position of the repaired workpiece, so as to solve the problems of cracking, pores and coarse grains that are easily generated in the laser additive repair process. After applying ultrasonic vibration, the actual ultrasonic vibration in the workpiece is dynamically monitored to adjust the ultrasonic parameters in time.

[0029] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A mechanical parts damage repair device, comprising a transmission frame (1), characterized in that: A plurality of bearing plates (101) are slidably disposed inside the transmission frame (1), a base plate (102) is mounted inside the bearing plate (101), a plurality of vibration sensors (103) are mounted at the bottom end of the bearing plate (101), a barrier mechanism (2) is mounted at the bottom end of the transmission frame (1), an adjustment mechanism (3) is mounted on the side of the transmission frame (1), the adjustment mechanism (3) comprises a back plate (301) and an ultrasonic component (308), and a laser cladding mechanism (4) is mounted on the outside of the back plate (301).

2. A mechanical parts damage repair device as claimed in claim 1, characterized in that: The back plate (301) is provided with a sliding groove (302), a sliding block (303) is movably inserted in the sliding groove (302), an operation box (304) is fixedly provided on the outer side of the sliding block (303), a transmission rod (305) is rotatably provided in the operation box (304), a connecting rod (306) is movably inserted in the transmission rod (305), a groove is fixedly provided on the outer side of the connecting rod (306), the connecting rod (306) is movably and rotatably inserted in the sliding block (303), the transmission rod (305) is movably sleeved in the groove, a fixed plate (307) is fixedly provided at the end of the connecting rod (306), and the fixed plate (307) is fixedly connected to the ultrasonic component (308) on a side away from the connecting rod (306).

3. A mechanical parts damage repair device as claimed in claim 2, characterized in that: A first worm gear (311) is fixedly sleeved on the outside of the transmission rod (305), a first worm (310) is rotatably provided inside the operating box (304), and the first worm (310) and the first worm gear (311) are meshed with each other, a second motor (312) is installed at the top of the operating box (304), an output shaft end of the second motor (312) is inserted through the operating box (304) and fixedly connected to the first worm gear (310), a rotating ring (314) is rotatably provided on the outside of the fixed disk (307), an electric cylinder (313) is installed on the operating box (304), and an output shaft end of the electric cylinder (313) is fixedly connected to the rotating ring (314).

4. A mechanical parts damage repair device as claimed in claim 2, characterized in that: An L-shaped plate (321) is fixedly provided on a side of the back plate (301) away from the transmission frame (1); a second rotating rod (322) is rotatably provided inside the L-shaped plate (321); a rotating plate (323) is fixedly provided on the outside of the second rotating rod (322); a fixed rod (324) is fixedly provided on the outside of the rotating plate (323); a square plate (320) is fixedly provided on a side of the sliding block (303) away from the operation box (304); a square groove (325) is provided inside the square plate (320); and the fixed rod (324) is movably inserted into the square groove (325).

5. A mechanical parts damage repair device as claimed in claim 4, characterized in that: An auxiliary rod (330) is fixedly provided on one side of the back plate (301) close to the square plate (320), and the square plate (320) is movably inserted in the auxiliary rod (330). A rotating shaft (326) and a second worm gear (327) are rotatably provided in the L-shaped plate (321), and the rotating shaft (326) and the second rotating rod (322) are connected by a synchronous wheel and a synchronous belt transmission. A second worm gear (328) is fixedly provided on the outer side of the rotating shaft (326), and the second worm gear (327) and the second worm gear (328) are meshed with each other. A third motor (329) is installed at the bottom end of the L-shaped plate (321), and the end of the output shaft of the third motor (329) is inserted through the L-shaped plate (321) and fixedly connected to the second worm gear (327).

6. A mechanical parts damage repair device as claimed in claim 1, characterized in that: The barrier mechanism (2) comprises a mounting frame (201), the mounting frame (201) being fixedly connected to the transmission frame (1), limiting frames (202) being fixedly provided on both sides of the inner wall of the mounting frame (201), guide rods (203) being movably inserted in the two limiting frames (202), a connecting block (206) being fixedly sleeved on the outer side of the guide rod (203), a spring (204) being movably sleeved on the outer side of the guide rod (203), a tooth plate (205) being fixedly provided on the end of the guide rod (203), a symmetrically distributed No. 1 rotating rod (210) being rotatably provided in the mounting frame (201), a baffle (211) being fixedly sleeved on the outer side of the No. 1 rotating rod (210), and two baffles (211) being located on both sides of the transmission frame (1).

7. A mechanical parts damage repair device as claimed in claim 6, characterized in that: The inner wall of the mounting frame (201) is fixedly provided with external slideways (207) that are symmetrically distributed, the toothed plate (205) is movably inserted in the external slideway (207), the outer fixed sleeve of the No. 1 rotating rod (210) is provided with a gear (212), the toothed plate (205) and the gear (212) are meshed with each other, a threaded rod (220) is rotatably provided in the mounting frame (201), the outer fixed sleeve of the threaded rod (220) is provided with a wedge block (221), the two guide rods (203) are located on both sides of the wedge block (221), and a No. 1 motor (222) is installed on the outer side of the mounting frame (201), and the end of the output shaft of the No. 1 motor (222) is inserted through the mounting frame (201) and fixedly connected to the threaded rod (220).

8. A system used in a mechanical parts damage repair device as claimed in any one of claims 1 to 7, characterized in that: The following steps are involved: S1. Laser head: Model LPT-03-CCD, with CCD module, can be assisted by CCD positioning to observe the state of the molten pool. The laser print head adopts a fully enclosed design, the light spot can be adjusted front and back, left and right, and it is convenient to adjust the light-powder coupling. The laser print head uses imported lenses and is equipped with a full water-cooling structure, which can print continuously and stably. The bottom copper nozzle adopts a coaxial ring powder feeding device, the light and powder are coaxial, and the powder utilization rate is high; S2. Powder feeding system: The powder feeding system includes two powder feeders and their supporting air supply system. It adopts carrier gas powder feeding. The unique multi-hole powder feeding method makes the powder feeding amount stable, which is particularly suitable for fine printing. The powder feeder is driven by a servo motor, and the speed can be accurately set. The powder feeding system is equipped with a pressure regulating valve and a pressure switch. The two powder feeders can feed powder at the same time or separately. They are respectively equipped with high-precision flow switches, with an adjustable flow rate of 0.5-25L / min and a low flow alarm function; S3, Laser: The equipment uses 3000W fiber laser, with high photoelectric conversion rate and stable beam; Standard QBH optical fiber interface, plug and play; S4, water cooling system: The water cooling system mainly refers to the cooling of the laser and laser print head. The low-temperature water belt has a heating function and can provide water cooling for both at the same time; S5, Lubrication system and oil cooling system: The lubrication system mainly provides lubrication for the three-axis guide rails, intensive processing, and reduces the difficulty of maintenance; the oil cooling system is mainly used to cool the spindle to reduce the problem of precision loss caused by temperature rise; S6. Electrical control system: The electrical control system adopts Wuhan Huazhong five-axis CNC system, equipped with professional modules, standard CNC panel, Chinese interface, tool change, powder feeding, light output and other secondary development programs are built-in, safety interlock, only one code is needed to realize all functional control; S7. Ultrasonic vibration system: The ultrasonic vibration platform includes an ultrasonic generator and a mechanical sensor.

Images