Blade laser quenching processing device

Abstract

The utility model discloses a blade laser quenching processing device which comprises a six-axis robot and a processing machine tool main body, a clamping and rotating main machine head is installed on the processing machine tool main body, a blade handle of a blade to be processed is clamped on a three-jaw chuck of the rotating main machine head, and the six-axis robot is located behind the middle of the processing machine tool main body. A laser irradiation head is mounted at the end part of a mechanical arm of the six-axis robot and faces the surface of the part, needing to be quenched, of the blade; the outer wall surface of a to-be-quenched part at the left part of the blade is coated with an alloy powder layer; and laser of the laser irradiation head irradiates the alloy powder layer. A laser irradiation head is installed at the end of a mechanical arm of the six-axis robot, quenching is achieved by heating an alloy powder layer coated on a blade through laser, the hardness of the quenched position of the blade is further improved, and the six-axis robot can be automatically moved away when not in use, so that different use requirements of a machining machine tool body are met.

Description

TECHNICAL FIELD

[0001] The utility model relates to the processing technical field of blade, more specifically to a blade laser quenching processing device. BACKGROUND

[0002] Blade is the main component on the impeller of some fan, motor and other equipment, which has the function of driving fluid to accelerate flow and realizing energy conversion, and has the function of guiding fluid;

[0003] When the blade is used, its surface is easily corroded, eroded or worn by steam, water vapor and other substances in the fluid, so the surface needs to be quenched to improve its hardness and corrosion resistance. The existing quenching method is generally surface heating, and the existing surface heating method is generally heating by flame, which has poor heating effect and low efficiency.

[0004] At the same time, the existing flame heating is mostly operated by a six-axis robot, which installs the blade shank on the three-jaw chuck at the head of the machine tool, and the six-axis robot is around the machine tool. When the machine tool is no longer used for quenching clamping but is used for machining of regular components, the six-axis robot needs to be removed, otherwise it will block the normal use of the machine tool, which is very troublesome. UTILITY MODEL CONTENTS

[0005] The utility model aims at overcoming the defects of the prior art and provides a blade laser quenching processing device, which is installed with a laser irradiation head at the end of the mechanical arm of the six-axis robot, heats the alloy powder layer coated on the blade by laser to realize quenching and further improve the hardness of the quenched part of the blade, and the six-axis robot can be automatically removed when not in use, meeting the different use needs of the main body of the machining machine tool.

[0006] The utility model solves the technical problem by the following scheme:

[0007] A blade laser quenching processing device, which comprises a six-axis robot and a machining machine tool main body, a clamping rotary head is installed on the main body of the machining machine tool main body, the shank of the blade to be processed is clamped on the three-jaw chuck of the rotary head, the six-axis robot is located at the rear part of the middle of the machining machine tool main body, and a laser irradiation head is installed at the end of the mechanical arm of the six-axis robot, which faces the surface of the part to be quenched of the blade.

[0008] An alloy powder layer is coated on the outer wall surface of the part to be quenched at the left part of the blade;

[0009] The laser irradiation head irradiates laser onto the alloy powder layer.

[0010] The bottom surface of the base of the six-axis robot is fixed with a plurality of sliding blocks, which are installed on two front and rear extending guide rails fixed on the middle ground behind the machining tool body.

[0011] The middle part of the bottom surface of the sliding block is formed with an upward extending chute, the front and rear ends of the chute extend out of the front and rear end surfaces of the sliding block, the left and right side walls of the lower part of the chute are formed with extending protruding parts, the opposite wall surfaces of the two extending protruding parts are close to the left or right side wall of the middle part of the guide rail, the upper part of the guide rail is inserted into the chute, the top surface of the chute is fixed with a polytetrafluoroethylene self-lubricating block, the bottom surface of the polytetrafluoroethylene self-lubricating block is pressed against the top surface of the corresponding guide rail, and the two extending protruding parts are below the left and right protruding extending parts of the upper part of the guide rail.

[0012] The middle part of the bottom surface of the base is fixed with a driving servo motor, the output shaft of the driving servo motor is fixed with a driving gear, and the ground below the base is fixed with a front and rear extending rack, and the driving gear is engaged with the rack.

[0013] The middle part of the inner end surface of the extending protruding part is formed with a socket, the middle part of the inner end surface of the socket is formed with a rear extending and extending out of the outer wall surface of the sliding block adjusting screw through hole, the limiting column is inserted into the corresponding socket, the outer side wall of the limiting column is close to the inner side wall of the corresponding socket, the middle part of the outer wall surface of the limiting column is fixed with a screw rod part, the screw rod part is screwed in the adjusting screw through hole, the outer end of the screw rod part extends out of the outer side wall of the corresponding sliding block, and the inner end surface of the limiting column extends out of the socket and is formed with a hemispherical limiting part, and the spherical surface of the hemispherical limiting part is close to the left or right side wall of the middle part of the guide rail.

[0014] The protruding effect of the utility model is:

[0015] It is installed with a laser irradiation head on the end part of the mechanical arm of the six-axis robot, alloy powder layer coated on the blade is heated through laser, quenching is realized, and the hardness and other characteristics of the blade quenching part are further improved, and the six-axis robot can be automatically moved away when not in use, so that different use requirements of the machining tool body are met. ACCURACY OF DRAWINGS:

[0016] Figure 1 It is a partial structure schematic view of the utility model;

[0017] Figure 2 It is a partial structure schematic view between the base and the guide rail of the utility model;

[0018] Figure 3 It is an angle changing partial structure schematic view between the base and the guide rail of the utility model;

[0019] Figure 4 It is Figure 3 The partial enlarged view of Detailed implementation method:

[0020] For example, see below. Figures 1 to 4 As shown, a blade laser quenching processing device includes a six-axis robot 10 and a processing machine body 200. A clamping rotary head is installed on the main body of the processing machine body 200. The blade shank of the blade 100 to be processed is clamped on the three-jaw chuck of the rotary head. The six-axis robot 10 is located at the rear of the middle part of the processing machine body 200. A laser irradiation head 11 is installed on the end of the robotic arm of the six-axis robot 10, which faces the surface of the blade 100 that needs to be quenched.

[0021] The aforementioned machine tool body 200, clamping rotating main head, six-axis robot 10 and laser irradiation head 11 are all existing conventional components, and will not be described in detail here.

[0022] An alloy powder layer 101 is coated on the outer wall surface of the quenching area on the left side of the blade 100; the laser from the laser irradiation head 11 irradiates the alloy powder layer 101. The alloy powder layer 101 is selected as follows: for blades 100 with high wear resistance requirements, alloy powder containing hard phases such as tungsten carbide and chromium carbide is selected as the alloy powder layer 101; for blades 100 with high corrosion resistance requirements, corrosion-resistant alloy powders such as nickel-based and cobalt-based alloys are selected. The particle size of the alloy powder is generally between 50-150μm, and the coating thickness is between 0.2-1.0mm. The alloy powder layer 101 of the blade 100 is irradiated by the laser of the laser irradiation head 11, causing its surface to melt. The blade 100 material is used as a solvent and the alloy elements of the alloy powder layer 101 are used as solutes. Through thorough liquid mixing, a uniform high-concentration alloy molten layer is formed. Due to the introduction of alloy elements, the alloyed layer has a higher alloy content than the substrate. Through reasonable alloy element design, the special properties of the substrate such as hardness, wear resistance, corrosion resistance, high temperature resistance and oxidation resistance are improved, so that the blade 100 can meet different requirements and be used in different environments as needed.

[0023] In use, the laser irradiation head 11 adjusts the focal length and other key parameters such as laser spot size and energy distribution according to the different materials of the blades 100. For example, the laser power is 1-3KW, the scanning speed is 8-25mm / s, and the spot size is 3-6mm. The scanning path is designed according to the blade shape, generally using linear or reciprocating scanning. Temperature and other parameters are monitored in real time and adjusted to meet the blade quenching requirements. The irradiated blade surface rapidly heats up to a temperature above the phase transition point but below the melting temperature, and then quickly cools to achieve phase transformation hardening of the workpiece surface (cooling requires the installation of coolant nozzles near the laser irradiation head 11 for rapid cooling after laser irradiation heating).

[0024] Further, the bottom surface of the base 12 of the six-axis robot 10 is fixed with a plurality of sliding blocks 13, which are installed on two front-and-rear extending guide rails 20 fixed on the ground at the middle rear of the machining tool body 200.

[0025] The cross section of the guide rail 20 is in the shape of an I-beam, and the front and rear portions of the left and right sides of the bottom surface of the base 12 are fixed with raised blocks 14, the bottom surface of the raised block 14 is fixed with a sliding block 13;

[0026] The middle portion of the bottom surface of the sliding block 13 is formed with an upward extending sliding groove 131, the front and rear ends of the sliding groove 131 extend out of the front and rear end surfaces of the sliding block 13, the left and right side walls of the lower portion of the sliding groove 131 are formed with extending protrusions 132, the opposite walls of the two extending protrusions 132 are close to the left or right side wall of the middle portion of the guide rail 20, the upper portion of the guide rail 20 is inserted into the sliding groove 131, the top surface of the sliding groove 131 is fixed with a polytetrafluoroethylene self-lubricating block 1, the bottom surface of the polytetrafluoroethylene self-lubricating block 1 is pressed against the top surface of the corresponding guide rail 20, and the two extending protrusions 132 are below the left and right protruding extensions of the upper portion of the guide rail 20.

[0027] The middle portion of the bottom surface of the base 12 is fixed with a driving servo motor 15, the output shaft of the driving servo motor 15 is fixed with a driving gear 16, the ground below the base 12 is fixed with a front-and-rear extending rack 17, the driving gear 16 is engaged with the rack 17, and the rack 17 is parallel to the guide rail 20.

[0028] The middle portion of the inner end surface of the extending protrusion 132 is formed with a insertion hole 133, the middle portion of the inner end surface of the insertion hole 133 is formed with an adjusting screw through hole 134 extending rearward and extending out of the outer wall surface of the sliding block 13, a limiting column 18 is inserted into the corresponding insertion hole 133, the outer side wall of the limiting column 18 is close to the inner side wall of the corresponding insertion hole 133, the middle portion of the outer wall surface of the limiting column 18 is fixed with a screw rod portion 181, the screw rod portion 181 is screwed into the adjusting screw through hole 134, the outer end of the screw rod portion 181 extends out of the outer side wall of the corresponding sliding block 13, the inner end surface of the limiting column 18 extends out of the insertion hole 133 and is formed with a hemispherical limiting portion 182, and the spherical surface of the hemispherical limiting portion 182 is close to the left or right side wall of the middle portion of the guide rail 20.

[0029] The insertion hole 133 is inserted with a locking spring 2, the screw rod portion 181 is inserted into the locking spring 2, one end of the locking spring 2 is applied to the outer end surface of the limiting column 18, and the other end of the locking spring 2 is applied to the inner end surface of the corresponding insertion hole 133. The locking spring 2 makes it not easy to loosen the rotation when the screw rod portion 181 is not rotated.

[0030] The middle part of the outer end surface of the threaded rod part 181 is formed with a hexagonal protruding part 183, and the middle part of the outer hexagonal block connecting block 19 is formed with an inner hexagonal socket, the hexagonal protruding part 183 is inserted into the inner hexagonal socket and cooperates with it.

[0031] When the machining operation of the ordinary metal piece at the machining tool body 200 is needed, the servo motor 15 is driven to run, so that the driving gear 16 rotates, so that it rolls along the rack 17, so that the six-axis robot 10 moves backward to the rear, so that it does not affect the machining operation of the metal piece at the machining tool body 200.

[0032] In this embodiment, the two limit plates are fixed at the front and rear ends of the guide rail 20, the upper parts of the opposite wall surfaces of the two limit plates are fixed with elastic limit blocks, the elastic limit blocks face the front wall or the rear wall of the base 12, and the proximity switch is fixed on the two limit plates, and the proximity switch corresponds to the sensing column fixed on the front wall or the rear wall of the base 12;

[0033] The length of the proximity switch is shorter than that of the elastic limit block, so that when the base 12 moves, it will first collide with the elastic limit block, and then the sensing end of the proximity switch will sense the sensing column;

[0034] In this embodiment, all electrical equipment is electrically connected to the control host through the electric connection line, and is controlled to run through the control host, which is a conventional structure, and will not be described here.

[0035] When the proximity switch senses the sensing column and sends the sensing signal to the control host, the control host controls the driving servo motor 15 to stop running, so that the base 12 does not move.

[0036] When the sliding block 13 moves along the guide rail 20, it can be installed on the hexagonal protruding part 183 by installing the outer hexagonal block connecting block 19 on the hexagonal protruding part 183, then rotating the outer hexagonal block connecting block 19, so that the threaded rod part 181 rotates, so that the spherical surface of the hemispherical limiting part 182 is close to the left side wall or the right side wall of the middle part of the guide rail 20, so that the sliding block 13 is not easy to swing left and right when moving along the guide rail 20, and the moving accuracy is improved.

Claims

1. A vane laser quenching processing device, comprising a six-axis robot (10) and a processing machine tool body (200), a clamping rotary main head is installed on the body of the processing machine tool body (200), the blade stem of a vane (100) to be processed is clamped on the three-jaw chuck of the rotary main head, and the six-axis robot (10) is located at the middle rear of the processing machine tool body (200), characterized in that: The end of the mechanical arm of the six-axis robot (10) is provided with a laser irradiation head (11) which faces the surface of the blade (100) to be quenched; The outer wall surface of the blade (100) to be quenched at the left part is coated with an alloy powder layer (101); The laser irradiation head (11) irradiates laser onto the alloy powder layer (101).

2. A blade laser quenching apparatus according to claim 1, wherein: The bottom surface of the base (12) of the six-axis robot (10) is fixed with a plurality of sliding blocks (13) which are installed on the front and rear extending two guide rails (20) fixed on the middle ground behind the machining tool body (200).

3. A blade laser quenching apparatus according to claim 2, wherein: The cross section of the guide rail (20) is I-shaped, and the front and rear parts of the left and right sides of the bottom surface of the base (12) are fixed with a raised block (14), and the bottom surface of the raised block (14) is fixed with a sliding block (13). The middle part of the bottom surface of the sliding block (13) is formed with an upward extending sliding groove (131), the front and rear ends of the sliding groove (131) extend out of the front and rear end surfaces of the sliding block (13), the left and right side walls of the lower part of the sliding groove (131) are formed with an extending protruding part (132), the opposite walls of the two extending protruding parts (132) are close to the left or right side wall of the middle part of the guide rail (20), the upper part of the guide rail (20) is inserted into the sliding groove (131), the top surface of the sliding groove (131) is fixed with a polytetrafluoroethylene self-lubricating block (1), the bottom surface of the polytetrafluoroethylene self-lubricating block (1) is pressed against the top surface of the corresponding guide rail (20), and the two extending protruding parts (132) are below the left and right protruding extending parts of the upper part of the guide rail (20).

4. The blade laser quenching apparatus of claim 2, wherein: The middle part of the bottom surface of the base (12) is fixed with a driving servo motor (15), the output shaft of the driving servo motor (15) is fixed with a driving gear (16), the ground below the base (12) is fixed with a front and rear extending rack (17), the driving gear (16) is engaged with the rack (17), and the rack (17) is parallel to the guide rail (20).

5. A blade laser quenching apparatus according to claim 3, wherein: The middle part of the inner end surface of the extending protruding part (132) is formed with a socket (133), the middle part of the inner end surface of the socket (133) is formed with a rear extending and extending out of the outer wall surface of the sliding block (13) adjusting screw through hole (134), the limiting column (18) is inserted into the corresponding socket (133), the outer side wall of the limiting column (18) is close to the inner side wall of the corresponding socket (133), the middle part of the outer wall surface of the limiting column (18) is fixed with a screw rod part (181), the screw rod part (181) is screwed into the adjusting screw through hole (134), the outer end of the screw rod part (181) extends out of the outer side wall of the corresponding sliding block (13), and the inner end surface of the limiting column (18) extends out of the socket (133) and is formed with a hemispherical limiting part (182), the spherical surface of the hemispherical limiting part (182) is close to the left or right side wall of the middle part of the guide rail (20).

6. A blade laser quenching apparatus according to claim 5, wherein: The locking spring (2) is sleeved in the insertion hole (133), the threaded rod portion (181) is sleeved in the locking spring (2), one end of the locking spring (2) is applied to the outer end surface of the limiting column (18), and the other end of the locking spring (2) is applied to the inner end surface of the corresponding insertion hole (133).

7. A blade laser quenching apparatus according to claim 5, wherein: The outer end surface of the threaded rod portion (181) is formed with a hexagonal protruding portion (183) in the middle, the middle of the outer hexagonal block connecting block (19) is formed with an inner hexagonal insertion hole, the hexagonal protruding portion (183) is sleeved in the inner hexagonal insertion hole and matched with the same.

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