Laser cladding feeding device

Abstract

The invention relates to the technical field of laser cladding, and discloses a laser cladding feeding device which comprises a control table located on one side of a base material containing table, a six-axis mechanical arm arranged on the control table, a laser cladding head arranged at the tail end of the six-axis mechanical arm and a feeding mechanism arranged between the six-axis mechanical arm and the laser cladding head. The feeding mechanism comprises an outer connecting assembly and an inner pipe fixedly installed on the laser cladding head, and the inner pipe is connected with a conveying pipe used for extracting powder from the powder storage barrel. According to the laser cladding feeding device, the problems that in the prior art, as time goes on and the number of feeding times is increased, adsorbed powder can be accumulated on the inner surfaces of all connecting pipelines of the powder feeding barrel, the feeding smoothness is affected, a laser cladding spray head and a feeding mechanism located at the tail end of the mechanical arm are inconvenient to disassemble, and the feeding efficiency is poor are effectively solved. And the feeding mechanism is troublesome to clean.

Description

Technical Field

[0001] The invention relates to the technical field of laser cladding, and in particular to a laser cladding feeding device. Background Art

[0002] Laser cladding powder feeding can be divided into pre-coating method and synchronous feeding method. The pre-coating method is to pre-place the powder on the surface of the substrate by bonding or spraying, and then use laser radiation scanning to melt and form a cladding layer. This method is simple in process and flexible in operation, but the powder is severely burned, and the cladding layer has defects such as many pores and cracks, loose structure, and rough surface; the synchronous feeding method is to use a feeding mechanism to continuously transport the powder in the powder storage cylinder to the laser action area to realize the cladding processing of the material. In order to quickly and accurately transport the powder to the cladding point, the synchronous feeding method usually installs the feeding mechanism between the laser cladding nozzle and the robot arm.

[0003] If the laser cladding equipment is used frequently, for example, a large amount of substrate cladding work is performed every day, then the feeding mechanism may need to be cleaned at short intervals. Because there is a certain friction and adsorption force between powders, when the powder is transported through the connecting pipes of the powder feeding tube, some powder particles (due to continuous approach to the laser cladding nozzle) will be adsorbed on the inner surface of the pipe due to the electrostatic effect of the laser cladding nozzle. As time goes by and the number of feeding times increases, these adsorbed powders will accumulate, affecting the smoothness of feeding. The laser cladding nozzle and feeding mechanism at the end of the robotic arm are not easy to disassemble, which makes the cleaning of the feeding mechanism more troublesome. In this regard, the present application designs a laser cladding feeding device. Summary of the invention

[0004] Technical issues solved In view of the above-mentioned shortcomings of the prior art, the present invention provides a laser cladding feeding device, which can effectively solve the problem in the prior art that, with the passage of time and the increase in the number of feeding times, the adsorbed powders will accumulate on the inner surfaces of the connecting pipes of the powder feeding tube, affecting the smoothness of feeding, and the laser cladding nozzle and feeding mechanism located at the end of the robotic arm are not easy to disassemble, resulting in troublesome cleaning of the feeding mechanism.

[0005] Technical Solution To achieve the above objectives, the present invention is implemented through the following technical solutions: The present invention provides a laser cladding feeding device, comprising a control console located at one side of a substrate placement table, a six-axis mechanical arm arranged on the control console, and a laser cladding head arranged at the end of the six-axis mechanical arm, and also comprising a feeding mechanism arranged between the six-axis mechanical arm and the laser cladding head, wherein the feeding mechanism comprises an external connection component and an inner tube fixedly mounted on the laser cladding head, and the inner tube is connected to a conveying pipe for extracting powder from a powder storage cylinder; The external connection component includes a positioning cylinder fixedly connected to the outer wall of the end of the six-axis robot arm, a mounting cylinder fixedly connected to the outer wall of the laser cladding head, a limiting ring is integrally formed at the opening of the end of the positioning cylinder away from the six-axis robot arm, a connecting ear is welded on the end surface of the end of the positioning cylinder away from the six-axis robot arm, a locking piece for clamping in the connecting ear is provided on the mounting cylinder, and a magnetic control for adjusting the position of the locking piece is provided on the positioning cylinder, and the magnetic control is located on the inner side of the limiting ring.

[0006] Furthermore, the magnetic control comprises a slide groove symmetrically opened on the inner wall of the positioning tube, a slider movable along the axis of the positioning tube is slidably connected in the slide groove, a counterweight ring is arranged between the two sliders, and a magnetic block is fixedly installed on the outer surface of the counterweight ring.

[0007] Furthermore, a rotating rod is installed in the slider for damping rotation, and one end of the rotating rod is welded to the outer wall of the counterweight ring. One end of the rotating rod extends to the outside of the positioning cylinder away from the counterweight ring, and a knob is fixedly installed on this end of the rotating rod. An adjustment groove for moving the knob is opened on the wall of the positioning cylinder.

[0008] Furthermore, two connecting ears are symmetrically arranged, and a through hole for locking by a locking member is opened in the connecting ear. The locking member includes a moving block slidably connected to the inner side of the installation tube through a smooth rod.

[0009] Furthermore, the magnetic blocks are symmetrically distributed in two groups around the center of the counterweight ring, and the two sides of the magnetic blocks are divided into positive and negative poles. A magnetic plate is fixedly installed on one side of the movable block close to the limit ring, and there are two magnetic plates symmetrically distributed around the center of the mounting tube, and the magnetic plates are magnetically connected to the magnetic blocks.

[0010] Furthermore, a wedge block is provided between the moving block and the connecting ear, a locking rod is fixedly mounted on the outer wall of the wedge block, and the diameter of the locking rod is the same as the inner diameter of the through hole in the connecting ear, and the locking rod movably penetrates the wall of the mounting tube.

[0011] Furthermore, a reset piece is connected between the outer wall of the wedge block and the inner wall of the mounting tube, and an inclined groove is provided on a side of the moving block close to the wedge block.

[0012] Furthermore, the inner tube is a hard bent tube, the inner tube is located on the inner side of the mounting tube, an inner connecting assembly is arranged between the inner tube and the conveying tube, the inner connecting assembly includes a gear ring arranged on the feeding end of the inner tube, the gear ring is rotatably connected to the outer wall of the inner tube through a dynamic seal, the top of the moving block is fixedly connected with a gear plate, and the gear ring is meshed with the gear plate.

[0013] Furthermore, a first joint is fixedly connected to the top of the gear ring, a second joint is fixedly installed at the discharge end of the conveying pipe, limiting claws are symmetrically connected to the outer walls of the first joint and the second joint, rubber sealing rings are installed at the openings of the first joint and the second joint, and an inclined block is connected to the outer wall of the first joint.

[0014] Compared with the prior art, the present invention has the following beneficial effects: The present invention does not require the aid of special tools or fixtures to assist in disassembling the laser cladding head and the feeding mechanism; when the laser cladding head and the conveying tube need to be disassembled, the control console drives the end of the six-axis mechanical arm and the laser cladding head to rotate upward, and the inclination state of the positioning tube rotates from the oblique downward direction to the oblique upward direction. Under the external force applied by the staff, the knob is pulled to make the counterweight ring away from the installation tube, and the counterweight ring is rotated again to change the magnetic direction of the magnetic block, and then the counterweight ring is pushed toward the installation tube. The magnetic plate is subjected to the magnetic repulsion of the magnetic block, and pushes the moving block in the reverse direction to move, and cooperates with the reset member to accelerate the lock rod to disengage from the lock hole of the connecting ear, and the tooth plate pushes the tooth ring to rotate in the reverse direction, thereby completing the rapid disassembly of the laser cladding head and the conveying tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] 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 prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0016] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present invention; Figure 2 This is a schematic structural diagram of a positioning cylinder according to an embodiment of the present invention; Figure 3 It is a schematic cross-sectional structural diagram of a positioning cylinder according to an embodiment of the present invention; Figure 4 It is a schematic cross-sectional structural diagram of another state of the positioning tube according to an embodiment of the present invention; Figure 5 It is a schematic cross-sectional structural diagram of a slider according to an embodiment of the present invention; Figure 6 It is a schematic cross-sectional structural diagram of a mounting tube according to an embodiment of the present invention; Figure 7 It is a structural schematic diagram of a moving block according to an embodiment of the present invention; Figure 8 This is a schematic diagram of the structure of the first joint and the second joint according to an embodiment of the present invention; Fig. 9 For the embodiment of the present invention Figure 8 Schematic diagram of the structure with a partial enlargement at point A in the middle.

[0017] The numbers in the figure represent: 1, control console; 2, six-axis robot arm; 3, laser cladding head; 4, feeding mechanism; 41, external connection assembly; 411, positioning cylinder; 412, mounting cylinder; 413, limiting ring; 414, connecting ear; 415, locking piece; 4151, moving block; 4152, magnetic plate; 4153, wedge block; 4154, locking rod; 4155, reset piece; 4156, inclined groove; 416, magnetic control; 4161, slide; 4162, slider; 4163, counterweight ring; 4164, magnetic block; 4165, rotating rod; 4166, knob; 42, inner tube; 43, conveying tube; 44, inner connecting assembly; 441, gear ring; 442, gear plate; 443, first joint; 444, second joint; 445, limit claw; 446, rubber sealing ring; 447, inclined block. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are 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.

[0019] The present invention will be further described below in conjunction with the embodiments.

[0020] Example 1, reference Figure 1-Figure 5 , which is the first embodiment of the present invention, provides a laser cladding feeding device, including a control console 1 located on one side of a substrate placement table, a six-axis robot 2 installed on the control console 1, and a laser cladding head 3 installed at the end of the six-axis robot 2, and also includes a feeding mechanism 4 installed between the six-axis robot 2 and the laser cladding head 3, the feeding mechanism 4 includes an external connection component 41 and an inner tube 42 fixedly installed on the laser cladding head 3, the inner tube 42 is connected to a conveying pipe 43 for extracting powder from a powder storage cylinder.

[0021] The traditional installation method of the laser cladding head 3 and the feeding mechanism 4 requires that the adapter interface of the laser cladding head 3 be aligned with the interface at the end of the six-axis robot 2, and the laser cladding head 3 is fixed to the end of the six-axis robot 2 using bolts, nuts or other fasteners. Sometimes, gaskets or specific positioning elements may be required to ensure precise alignment; the feeding mechanism 4 is usually installed on the outer wall of the laser cladding head 3, and the connection between the feeding mechanism 4 and the laser cladding head 3 is through bolts, snaps, welding or other mechanical connection methods. For the feeding mechanism 4 that requires precise alignment, special tools or clamps are required to assist in installation to ensure that it will not loosen during the feeding and cladding process. The installation and disassembly are more troublesome, and it is not convenient to clean the feeding mechanism 4.

[0022] The external connection component 41 includes a positioning cylinder 411 fixedly connected to the outer wall of the end of the six-axis robot 2, a mounting cylinder 412 fixedly connected to the outer wall of the laser cladding head 3, a limiting ring 413 is integrally formed and connected at the opening of the end of the positioning cylinder 411 away from the six-axis robot 2, a connecting ear 414 is welded on the end surface of the positioning cylinder 411 away from the six-axis robot 2, a locking piece 415 for clamping in the connecting ear 414 is installed on the mounting cylinder 412, and a magnetic control 416 for adjusting the position of the locking piece 415 is installed on the positioning cylinder 411, and the magnetic control 416 is located on the inner side of the limiting ring 413.

[0023] Specifically, the console 1 is fixedly connected to the six-axis robot 2 on its top through a base, and is electrically connected using cables, connecting the electrical system of the six-axis robot 2 to the electrical interface in the console 1 to transmit power and signals. The console 1 is equipped with a control unit, such as a PLC or an IPC. The staff sends instructions through an input device, and the control unit converts these instructions into motion control signals. The servo driver adjusts the motor according to the signal to achieve precise joint movement; and the console 1 controls the speed and amount of powder extracted from the powder storage cylinder of the conveying pipe 43, so that the laser cladding head 3 can accurately clad the substrate.

[0024] Specifically, during the normal operation of laser cladding, based on the requirements of the cladding process, it is usually necessary to set the fifth axis (the up and down swing of the wrist of the six-axis robot 2) to be tilted downward, that is, the laser cladding head 3 is always in a tilted downward state when working. This tilt angle can enable the laser cladding head 3 to better focus the laser beam on the target area on the workpiece surface, and is conducive to the transportation of the cladding material and the formation of the cladding layer.

[0025] Specifically, since the laser cladding head 3 is always in a downward tilted state during operation, the magnetic control 416 is freely moved obliquely downward under the influence of gravity, and fits with the outer surface of one side of the limiting ring 413, so that the magnetic control 416 firmly adsorbs the mounting tube 412, and the mounting tube 412 fits with the outer surface of the other side of the limiting ring 413, thereby avoiding the laser cladding head 3 and the inner tube 42 from moving during the feeding operation, thereby improving the stability of the feeding and cladding operations.

[0026] Reference Figure 3 and Figure 4 The magnetic control 416 includes a slide groove 4161 symmetrically opened on the inner wall of the positioning tube 411, a slider 4162 is slidably connected in the slide groove 4161 and can move along the axis of the positioning tube 411, a counterweight ring 4163 is installed between the two sliders 4162, and a magnetic block 4164 is fixedly installed on the outer surface of the counterweight ring 4163.

[0027] Specifically, when the console 1 drives the end of the six-axis robot arm 2 and the laser cladding head 3 to rotate downward (such as Figure 3 As shown in the figure), the counterweight ring 4163 moves obliquely downward under the influence of gravity, and the slider 4162 slides in the slide groove 4161, so that the installation cylinder 412 is inserted into the opening of the positioning cylinder 411, so that the installation cylinder 412 fits the outer surface of the limit ring 413, and the magnetic block 4164 on the counterweight ring 4163 locks the installation cylinder 412 on the inner side of the positioning cylinder 411, and the installation of the laser cladding head 3 and the conveying tube 43 is completed.

[0028] Reference Figure 2 and Figure 5 , a rotating rod 4165 is installed in the slider 4162 for damping rotation, and one end of the rotating rod 4165 is welded to the outer wall of the counterweight ring 4163, one end of the rotating rod 4165 away from the counterweight ring 4163 extends to the outside of the positioning cylinder 411, and a knob 4166 is fixedly installed on the end of the rotating rod 4165, and an adjustment slot for the knob 4166 to move is opened on the wall of the positioning cylinder 411 ( Figure 2 , but not numbered).

[0029] Specifically, when it is necessary to remove the lower mounting cylinder 412 to clean the inner tube 42 and the delivery tube 43, the control console 1 drives the end of the six-axis robot 2 (i.e., the wrist of the six-axis robot 2) to rotate upward, and the inclination state of the laser cladding head 3 and the positioning cylinder 411 rotates from obliquely downward to obliquely upward (such as Figure 4As shown), under the external force applied by the staff, the knob 4166 is pulled to move the counterweight ring 4163 away from the mounting tube 412, and then the counterweight ring 4163 is rotated 180 degrees to change the magnetic direction of the magnetic block 4164, and then the counterweight ring 4163 is pushed toward the mounting tube 412, so that the mounting tube 412 can be released from the lock between the positioning tube 411, and the disassembly of the laser cladding head 3 and the conveying tube 43 is completed.

[0030] Example 2, reference Figure 1-Figure 7 , which is the second embodiment of the present invention. This embodiment is different from the first embodiment in that: two connecting ears 414 are symmetrically arranged, and a through hole for locking a locking piece 415 is opened in the connecting ear 414. The locking piece 415 includes a moving block 4151 slidably connected to the inner side of the mounting tube 412 through a smooth rod (the moving block 4151 can only move linearly in the mounting tube 412); there are two groups of magnetic blocks 4164 symmetrically distributed around the center of the counterweight ring 4163, and the two sides of the magnetic block 4164 are divided into positive and negative poles. A magnetic plate 4152 is fixedly installed on one side of the moving block 4151 close to the limit ring 413, and two magnetic plates 4152 are symmetrically distributed around the center of the mounting tube 412, and the magnetic plate 4152 is magnetically connected to the magnetic block 4164.

[0031] Specifically, when the laser cladding head 3 and the delivery pipe 43 are installed, the positioning cylinder 411 is in a downward tilted state (such as Figure 2 As shown in the figure), the weight ring 4163 moves obliquely downward under the action of its own gravity, so that the magnetic block 4164 continues to approach the magnetic plate 4152. When the weight ring 4163 fits the outer surface of the limit ring 413, the installation tube 412 is inserted into the opening of the positioning tube 411 (the magnetic plate 4152 is located in the installation tube 412 when not adsorbed). The magnetic plate 4152 is attracted by the magnetic block 4164, and the two magnetic plates 4152 pull the moving block 4151 to approach the weight ring 4163. The installation and locking can be completed without any other additional tools.

[0032] Reference Figure 6 and Figure 7 A wedge block 4153 is arranged between the moving block 4151 and the connecting ear 414, a locking rod 4154 is fixedly installed on the outer wall of the wedge block 4153, and the diameter of the locking rod 4154 is the same as the inner diameter of the through hole in the connecting ear 414, and the locking rod 4154 is movable through the wall of the mounting tube 412; a reset piece 4155 is connected between the outer wall of the wedge block 4153 and the inner wall of the mounting tube 412, and an inclined groove 4156 is opened on the side of the moving block 4151 close to the wedge block 4153.

[0033] Specifically, the reset member 4155 is preferably a compression spring that can withstand axial pressure and has the characteristic of storing elastic potential energy, so that the wedge block 4153 can subsequently drive the locking rod 4154 to automatically reset, so that the locking rod 4154 is disengaged from the locking hole of the connecting ear 414, thereby completing the unlocking of the installation cylinder 412.

[0034] Specifically, as the moving block 4151 approaches the counterweight ring 4163, the inclined groove 4156 on the moving block 4151 squeezes the inclined surface of the wedge block 4153, so that the two wedge blocks 4153 move away from the moving block 4151, and the wedge block 4153 drives the locking rod 4154 to insert into the locking hole of the connecting ear 414, and compresses the reset member 4155, thereby completing the locking of the installation cylinder 412 and the laser cladding head 3. The rest of the structure is the same as that of Example 1.

[0035] Example 3, reference Figure 1-Figure 9 , which is the third embodiment of the present invention. This embodiment is different from the second embodiment in that: the inner tube 42 is a hard curved tube, the inner tube 42 is located on the inner side of the mounting tube 412, an inner connecting assembly 44 is installed between the inner tube 42 and the conveying tube 43, the inner connecting assembly 44 includes a gear ring 441 installed on the feed end of the inner tube 42, the gear ring 441 is rotatably connected to the outer wall of the inner tube 42 through a dynamic seal, a gear plate 442 is fixedly connected to the top of the moving block 4151, and the gear ring 441 is meshed with the gear plate 442.

[0036] Specifically, the dynamic seal may be a rotary dynamic seal component, such as a contact dynamic seal in which the gear ring 441 (moving component) is in direct contact with the inner tube 42 (stationary component).

[0037] Specifically, when the moving block 4151 is adjusted and moved with the magnetic block 4164 , the tooth plate 442 moves synchronously with the moving block 4151 , so that the tooth plate 442 drives the gear ring 441 to rotate, thereby completing the installation or disassembly of the inner tube 42 and the conveying tube 43 .

[0038] Reference Figure 8 and Fig. 9 A first joint 443 is fixedly connected to the top of the toothed ring 441, a second joint 444 is fixedly installed at the discharge end of the conveying pipe 43, limiting claws 445 are symmetrically connected to the outer walls of the first joint 443 and the second joint 444, rubber sealing rings 446 are installed at the openings of the first joint 443 and the second joint 444, and an inclined block 447 is connected to the outer wall of the first joint 443.

[0039] Specifically, the rubber sealing ring 446 has moderate elasticity and can produce reversible deformation when compressed without causing permanent impact on its recovery to the original state. When the two rubber sealing rings 446 are compressed and completely fit together, the first joint 443 and the second joint 444 are sealed and connected.

[0040] Specifically, before the installation cylinder 412 is inserted into the opening of the positioning cylinder 411, the discharge end of the conveying pipe 43 is inserted into the installation cylinder 412, so that the rubber sealing ring 446 on the second joint 444 fits with the end face of the rubber sealing ring 446 on the first joint 443 (the rubber sealing ring 446 is not compressed at this time), and when the moving block 4151 approaches the counterweight ring 4163 and the locking rod 4154 is fully inserted into the locking hole of the connecting ear 414, the moving block 4151 drives the tooth plate 442 to move synchronously, so that the tooth ring 441 and the inclined block 447 rotate about the axis of the first joint 443, so that the limiting claw 445 on the second joint 444 is guided by the inclined block 447, and the second joint 444 is constantly close to the first joint 443, and the two rubber sealing rings 446 are compressed and deformed, completing the sealing installation of the inner tube 42 and the end of the conveying pipe 43. The rest of the structure is the same as that of Example 2.

[0041] Based on Example 1 to Example 3, the installation method of the present invention is: the console 1 drives the end of the six-axis robot 2 and the laser cladding head 3 to rotate downward (such as Figure 3 As shown in the figure, the counterweight ring 4163 moves obliquely downward under the influence of gravity, and the slider 4162 slides in the slide groove 4161, inserting the discharge end of the conveying pipe 43 into the installation cylinder 412, so that the rubber sealing ring 446 on the second joint 444 fits with the end surface of the rubber sealing ring 446 on the first joint 443 (at this time, the rubber sealing ring 446 is not compressed); in this way, the installation cylinder 412 is inserted into the opening of the positioning cylinder 411, so that the installation cylinder 412 fits with the outer surface of the limit ring 413, and then the installation cylinder 412 is inserted into the opening of the positioning cylinder 411, and the magnetic plate 4152 is attracted by the magnetic block 4164, and the two magnetic blocks are attracted to each other. The plate 4152 pulls the moving block 4151 and the toothed plate 442 toward the counterweight ring 4163, and the inclined groove 4156 squeezes the inclined surface of the wedge block 4153, so that the two wedge blocks 4153 drive the locking rod 4154 to insert into the locking hole of the connecting ear 414, thereby completing the fixed installation of the laser cladding head 3 on the six-axis robot arm 2; and the toothed ring 441 and the inclined block 447 rotate with the axis of the first joint 443, so that the limiting claw 445 on the second joint 444 is guided by the inclined block 447, and the second joint 444 continuously approaches the first joint 443, and the two rubber sealing rings 446 are compressed and deformed, thereby completing the sealing installation of the ends of the inner tube 42 and the conveying tube 43.

[0042] The disassembly method of the present invention is as follows: after being locked for a long time, the reset member 4155 may be fatigued. When the laser cladding head 3 and the conveying tube 43 need to be disassembled, the control console 1 drives the end of the six-axis robot 2 (i.e., the wrist of the six-axis robot 2) to rotate upward, and the inclination state of the laser cladding head 3 and the positioning cylinder 411 rotates from obliquely downward to obliquely upward (such as Figure 4As shown), under the external force applied by the staff, the knob 4166 is pulled to make the counterweight ring 4163 move away from the installation tube 412, and then the counterweight ring 4163 is rotated 180 degrees to change the magnetic direction of the magnetic block 4164, and then the counterweight ring 4163 is pushed toward the installation tube 412. The magnetic plate 4152 is subjected to the magnetic repulsion of the magnetic block 4164, and pushes the moving block 4151 in the reverse direction to move, and cooperates with the reset member 4155 to accelerate the lock rod 4154 to disengage from the lock hole of the connecting ear 414, and the tooth plate 442 pushes the tooth ring 441 to rotate in the reverse direction, thereby completing the rapid disassembly of the laser cladding head 3 and the conveying tube 43.

[0043] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A laser cladding feeding device, comprising a control console (1) located on one side of a substrate placement table, a six-axis robotic arm (2) arranged on the control console (1), and a laser cladding head (3) arranged at the end of the six-axis robotic arm (2), characterized in that: It also includes a feeding mechanism (4) arranged between the six-axis robot arm (2) and the laser cladding head (3), the feeding mechanism (4) comprising an external connection component (41) and an inner tube (42) fixedly mounted on the laser cladding head (3), the inner tube (42) being connected to a conveying tube (43) for extracting powder from a powder storage cylinder.

2. The external connection component (41) comprises a positioning cylinder (411) fixedly connected to the outer wall of the end of the six-axis robot (2); a mounting cylinder (412) fixedly connected to the outer wall of the laser cladding head (3); a limiting ring (413) is integrally formed and connected at an opening of one end of the positioning cylinder (411) away from the six-axis robot (2); a connecting ear (414) is welded on the end surface of the positioning cylinder (411) away from the six-axis robot (2); a locking piece (415) for clamping in the connecting ear (414) is arranged on the mounting cylinder (412); a magnetic control unit (416) for adjusting the position of the locking piece (415) is arranged on the positioning cylinder (411), and the magnetic control unit (416) is located on the inner side of the limiting ring (413).

3. The laser cladding feeding device according to claim 1, characterized in that: The magnetic control unit (416) includes a slide groove (4161) symmetrically opened on the inner wall of the positioning tube (411), a slider (4162) is slidably connected in the slide groove (4161) and can move along the axis of the positioning tube (411), a counterweight ring (4163) is arranged between the two sliders (4162), and a magnetic block (4164) is fixedly installed on the outer surface of the counterweight ring (4163).

4. The laser cladding feeding device according to claim 2, characterized in that: A rotating rod (4165) is installed in the slider (4162) for damping rotation, and one end of the rotating rod (4165) is welded to the outer wall of the counterweight ring (4163). One end of the rotating rod (4165) away from the counterweight ring (4163) extends to the outside of the positioning tube (411), and a knob (4166) is fixedly installed on this end of the rotating rod (4165). An adjustment groove for the knob (4166) to move is opened on the wall of the positioning tube (411).

5. The laser cladding feeding device according to claim 2, characterized in that: Two connecting ears (414) are symmetrically arranged, and a through hole for locking a locking member (415) is provided in the connecting ears (414). The locking member (415) comprises a moving block (4151) slidably connected to the inner side of the mounting tube (412) via a smooth rod.

6. The laser cladding feeding device according to claim 3, characterized in that: The magnetic blocks (4164) are arranged in two groups symmetrically distributed around the center of the counterweight ring (4163), and the two sides of the magnetic blocks (4164) are divided into positive and negative poles. A magnetic plate (4152) is fixedly installed on one side of the movable block (4151) close to the limit ring (413), and two magnetic plates (4152) are arranged symmetrically around the center of the mounting tube (412). The magnetic plates (4152) and the magnetic blocks (4164) are magnetically connected.

7. The laser cladding feeding device according to claim 3, characterized in that: A wedge block (4153) is provided between the moving block (4151) and the connecting ear (414); a locking rod (4154) is fixedly mounted on the outer wall of the wedge block (4153); and the diameter of the locking rod (4154) is the same as the inner diameter of the through hole in the connecting ear (414); the locking rod (4154) movably penetrates the wall of the mounting tube (412).

8. The laser cladding feeding device according to claim 6, characterized in that: A reset piece (4155) is connected between the outer wall of the wedge block (4153) and the inner wall of the mounting tube (412), and an inclined groove (4156) is provided on a side of the moving block (4151) close to the wedge block (4153).

9. The laser cladding feeding device according to claim 4, characterized in that: The inner tube (42) is a hard curved tube. The inner tube (42) is located on the inner side of the mounting tube (412). An inner connecting assembly (44) is provided between the inner tube (42) and the conveying tube (43). The inner connecting assembly (44) comprises a toothed ring (441) provided on the feeding end of the inner tube (42). The toothed ring (441) is rotatably connected to the outer wall of the inner tube (42) via a dynamic seal. A toothed plate (442) is fixedly connected to the top of the moving block (4151), and the toothed ring (441) is meshed with the toothed plate (442).

10. The laser cladding feeding device according to claim 8, characterized in that: A first joint (443) is fixedly connected to the top of the toothed ring (441), a second joint (444) is fixedly installed at the discharge end of the conveying pipe (43), limiting claws (445) are symmetrically connected to the outer walls of the first joint (443) and the second joint (444), rubber sealing rings (446) are installed at the openings of the first joint (443) and the second joint (444), and an inclined block (447) is connected to the outer wall of the first joint (443).

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