Industrial robot for detecting deformation of an impeller of a vane fan

Abstract

The application belongs to the technical field of industrial robots, and particularly relates to a blade fan impeller anti-deformation detection industrial robot, which comprises a support plate. Two groups of first electric push rods are installed on the top of the support plate. The output ends of the two groups of first electric push rods are drivingly connected with a linkage plate. After the top fan impeller to be detected is fixed by a driving assembly, the fan impeller to be detected can be rotated, vibrated and disturbed by wind flow, so as to simulate the working environment of the fan impeller to be detected. Then, the first electric push rod drives the anti-deformation detection mold base to fall, so that the detection groove and the detection groove at the bottom of the anti-deformation detection mold base are connected in a fit manner. After the top of the fan impeller to be detected is detected, the appearance of the fan impeller to be detected can be detected at one time. In addition, the infrared detection assembly can be used to analyze and detect the deformation degree of the surface of the fan impeller to be detected which is connected in the detection groove and the detection groove, so as to improve the detection efficiency.

Description

Technical Field

[0001] This invention belongs to the field of industrial robot testing technology, and specifically relates to an industrial robot for testing the impeller deformation resistance of a bladed fan. Background Technology

[0002] A bladed blower generally consists of a blower casing, a motor, an impeller, and blades. The motor is located at the rear of the blower casing, and the impeller is housed inside the casing and connected to the motor's output shaft. During operation, the motor's output shaft drives the impeller to rotate, thereby achieving the purpose of discharging gas. An impeller can refer to either a wheel disk with moving blades, a component of an impulse turbine rotor, or the entire disc and the rotating blades mounted on it. Impellers can be classified according to their shape and opening / closing status. The impeller is the core component of a sewage pump for energy conversion, and its performance directly affects the overall performance of the pump. To ensure impeller manufacturing quality, quality inspection of the impeller is necessary.

[0003] A search revealed that Chinese Patent Publication No. CN219608733U, authorized on August 29, 2023, discloses an impeller inspection fixture, comprising a loading tray disposed above a base, a rotating seat disposed below the loading tray, a motor disposed at the upper end of the base, the output end of the motor being integrated with the rotating seat; a mounting base disposed on one side of the base, the mounting base having a telescopic cavity inside, a mounting frame disposed above the mounting base, one end of the mounting frame extending into the telescopic cavity, a first sliding groove disposed on the mounting frame, a laser scanning block disposed inside the first sliding groove, a first electric telescopic rod disposed on one side of the laser scanning block; and a second electric telescopic rod disposed inside the telescopic cavity. The loading tray of this impeller inspection fixture can rotate during the inspection process, changing the relative position with the laser scanning block by rotating the impeller, thus enabling thorough laser scanning of the impeller surface, better impeller inspection, and improved impeller inspection results.

[0004] However, the equipment still has the following drawbacks: although it can better detect impellers and improve the detection effect, it cannot detect the deformation resistance of impellers in the first time under the harsh operating environment of simulated wind turbine impellers. Moreover, the detection method relies too much on laser scanning, which requires high precision in manual assembly and often affects the efficiency of operation. Summary of the Invention

[0005] To address the aforementioned problems, this invention provides an industrial robot for detecting the anti-deformation properties of a bladed wind turbine impeller, comprising a support plate; two sets of first electric push rods are mounted on the top of the support plate, and the output ends of the two sets of first electric push rods are drivenly connected to a linkage plate; a first motor is embedded in the top of the linkage plate, and the output end of the first motor is drivenly connected to an anti-deformation detection mold base; a drive assembly is drivenly connected to the top of the support plate, and the impeller to be tested is movably engaged at the top of the drive assembly; the drive assembly is used to simulate the working environment of the impeller to be tested; a detection groove is formed at the center of the bottom central axis of the anti-deformation detection mold base, and several sets of detection slots are also formed at the bottom of the anti-deformation detection mold base; the detection groove and the several sets of detection slots are all fitted and connected to the top of the impeller to be tested; an infrared detection assembly for analyzing the surface deformation of the impeller to be tested is embedded in the top of the anti-deformation detection mold base.

[0006] Furthermore, the drive assembly includes a drive housing; the top of the drive housing is an open structure, a handwheel is rotatably connected to one side of the outer wall of the drive housing, hollow sliding cavities are provided on both sides of the outer wall of the drive housing, and linkage blocks are slidably attached to the inner walls of the two sets of hollow sliding cavities. A first lead screw is threaded laterally onto the linkage block, one end of the first lead screw is fixedly connected to the handwheel, and a second electric push rod is fixedly connected to both sides of the outer wall of the linkage block. An adjusting block is drivenly connected to the output end of the second electric push rod, and a vertical rod is longitudinally connected through the adjusting block. A linkage ball is fixedly connected to the top end of the vertical rod, and a vibration motor is fixedly connected to the bottom end of the vertical rod.

[0007] Furthermore, two sets of second springs are sleeved on the vertical rod, a servo motor is installed on the outer wall of the drive housing away from the handwheel, and the output end of the servo motor is driven by a driven gear. An air injection pipe is fixedly connected to the outer wall of the driven gear, and the other end of the air injection pipe is rotatably connected to the other side of the outer wall of the drive housing. Several sets of through holes are opened on the outer wall of the air injection pipe in the direction close to the drive housing.

[0008] Furthermore, an air pump is embedded in the outer wall of the air injection pipe, and a bracket is fixedly connected to one side of the outer wall of the drive housing. A second motor is embedded in the bracket, and a second lead screw is driven to the output end of the second motor. A rack is threaded onto the second lead screw, and one side wall of the rack is attached to the outer wall of the drive housing. The top of the rack is meshed with the driven gear.

[0009] Furthermore, the top of the drive housing is also provided with an annular housing, the top of the annular housing is provided with a number of adsorption holes, and a number of vacuum pumps are embedded in one side of the outer wall of the annular housing.

[0010] Furthermore, several sets of vacuum pumps have vertical plates fixedly connected to their outer walls, and bolts are threaded onto the vertical plates, with one end of the bolts in movable contact with the outer wall of the impeller of the fan to be tested.

[0011] Furthermore, an internal gear ring is fixedly connected to the inner wall of the annular shell, and two sets of drive gears are meshed on the internal gear ring. The bottom of each set of drive gears is connected to the output end of a third motor, and a track block is fixedly connected to the side of each set of third motors away from the output end.

[0012] Furthermore, the top of the track block is provided with two sets of track guide grooves, the bottom end of the annular shell is fixedly connected with a ball ring, and the ball ring is slidably connected to the inner wall of the two sets of track guide grooves. A crossbeam is embedded in the track block, and both the crossbeam and the track block are fixedly connected to the inner wall of the drive housing.

[0013] Furthermore, a guide rod is connected through the center of the central axis of the deformation resistance testing mold base. The outer wall of the guide rod is also provided with a thread. An internal threaded hole is opened at the center of the central axis of the deformation resistance testing mold base, and the internal threaded hole is threadedly connected to the thread on the guide rod. A limit block is fixedly connected to the bottom end of the guide rod. A first spring is also sleeved on the guide rod, and the top end of the guide rod is drivenly connected to the output end of the first motor. Several sets of positioning housings are fixedly connected to the top of the deformation resistance testing mold base, and the bottom ends of the several sets of positioning housings are all connected to the detection groove. Detection cavities are opened on both sides of the outer wall of the several sets of positioning housings. Several sets of mounting holes are also opened on the outer wall of the deformation resistance testing mold base, and the number of the several sets of mounting holes is the same as that of the positioning housings.

[0014] Furthermore, the infrared detection component includes a linkage fan ring; the linkage fan ring is provided in several groups, and the several groups of linkage fan rings are spliced ​​into a ring structure. An assembly block is embedded in the central axis of the linkage fan ring. An infrared rangefinder is embedded in both side walls of the assembly block, and the infrared rangefinder is set at the same horizontal level as the detection cavity. The output end of a third electric push rod is drivenly connected to one side of the outer wall of the assembly block, and the side of the third electric push rod away from the output end is fixedly installed in the inner wall of the mounting hole. A guide positioning crossbar is transversely connected to the end connection of the several groups of linkage fan rings. A stop block is fixedly connected to one end of the guide positioning crossbar, and the other end of the guide positioning crossbar is fixedly connected to the inner wall of the anti-deformation detection mold base. A positioning nut is threaded onto the guide positioning crossbar.

[0015] The beneficial effects of this invention are:

[0016] 1. After the drive component is used to fix the impeller to be tested at the top, it can also simulate the working environment of the impeller under test by rotating, vibrating, and experiencing airflow interference. Then, the first electric push rod drives the anti-deformation testing mold base to fall, so that the testing groove and testing recess at the bottom of the anti-deformation testing mold base fit together with the top of the impeller after testing. This is used to inspect the appearance of the impeller at one time. In addition, the infrared detection component can be used to analyze the deformation of the impeller surface that fits together with the testing groove and testing recess, thereby improving the testing efficiency.

[0017] 2. By continuously operating the air pump on the air injection pipe, gas is blown through several sets of through holes onto the upper surface of the impeller of the fan under test, which is in a rotating and vibrating state. The second motor drives the second lead screw to rotate, which in turn drives the driven gear to rotate during the horizontal movement of the rack. This causes the air injection pipe to rotate around the driven gear, which is used to switch the angle at which the gas is blown onto the upper surface of the impeller of the fan under test through several sets of through holes. This allows the gas to interfere with the upper surface of the impeller of the fan under test from different directions, thereby improving the testing efficiency.

[0018] 3. The output end of the first electric push rod drives the linkage plate to fall. After manually rotating the anti-deformation testing mold base, the internal threaded hole on the anti-deformation testing mold base separates from the threaded wire on the guide rod. The tension of the first spring on the guide rod resists the anti-deformation testing mold base from falling. Then, the two sets of first electric push rods drive the anti-deformation testing mold base to move further down, so that the anti-deformation testing mold base moves downward and close to the impeller of the fan to be tested. Under the action of manually rotating the anti-deformation testing mold base, the contact position of several sets of testing grooves with the top of the impeller of the fan to be tested is adjusted. When the top of the impeller of the fan to be tested can be attached to several sets of testing grooves, it is determined that the impeller of the fan to be tested after interference is not deformed, thus improving the efficiency of the initial test.

[0019] 4. The assembly block can be horizontally pushed by the output ends of several sets of third electric push rods, causing the infrared rangefinders on both sides of the assembly block to move horizontally to both sides of the detection chamber. During the horizontal movement, the infrared rangefinders detect the unevenness of the surface of the impeller to be tested inside the positioning housing. When the surface of the impeller to be tested is uneven or deformed, the infrared rangefinders can detect the change in the distance between the impeller blades and the test blades. This allows the testing personnel to judge whether the impeller to be tested has deformed after the anti-deformation test based on the abnormal change in the distance, thus improving the accuracy and efficiency of the test.

[0020] Other features and advantages of the invention will be set forth in the following description, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures pointed out in the description and the drawings. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 A schematic diagram of the structure of the wind turbine impeller anti-deformation detection device according to an embodiment of the present invention is shown;

[0023] Figure 2 The following is a front view of the structure of the wind turbine impeller anti-deformation detection device according to an embodiment of the present invention;

[0024] Figure 3 A bottom schematic diagram of the deformation resistance testing mold base according to an embodiment of the present invention is shown;

[0025] Figure 4 A schematic diagram showing the connection between the deformation resistance detection mold base and the infrared detection component according to an embodiment of the present invention is shown;

[0026] Figure 5 A top view of the deformation resistance testing mold base according to an embodiment of the present invention is shown;

[0027] Figure 6 A schematic diagram of the structure of the driving component according to an embodiment of the present invention is shown;

[0028] Figure 7 A schematic diagram of the structure of the drive housing according to an embodiment of the present invention is shown;

[0029] Figure 8 A schematic diagram of the annular shell structure according to an embodiment of the present invention is shown;

[0030] Figure 9 A schematic diagram of the structure of the infrared detection component according to an embodiment of the present invention is shown.

[0031] In the diagram: 1. Support plate; 2. First electric push rod; 3. Linkage plate; 4. First motor; 5. Deformation detection mold base; 6. Drive assembly; 61. Drive housing; 62. Handwheel; 63. Hollow slide cavity; 64. Linkage block; 65. Second electric push rod; 66. Adjustment block; 67. Linkage ball; 68. Vibration motor; 69. Second spring; 610. Driven gear; 611. Air injection pipe; 612. Through hole; 613. Bracket; 614. Second motor; 615. Rack; 616. Second lead screw; 617. Annular housing; 618. Adsorption hole; 619. Internal gear ring; 620. Drive gear 621. Third motor; 622. Ball ring; 623. Vacuum pump; 624. Vertical plate; 625. Bolt; 626. Track block; 627. Track guide groove; 628. Crossbeam; 7. Impeller of the fan to be tested; 8. Detection groove; 9. Detection recess; 10. Infrared detection assembly; 101. Linkage fan ring; 102. Assembly block; 103. Infrared rangefinder; 104. Third electric push rod; 105. Guide positioning crossbar; 106. Stop block; 107. Positioning nut; 11. Guide rod; 12. Limiting block; 13. First spring; 14. Mounting hole; 15. Positioning housing; 16. Detection chamber. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] This invention provides an industrial robot for detecting the deformation resistance of a bladed wind turbine impeller, including a support plate 1; for example, such as... Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown.

[0034] Two sets of first electric push rods 2 are installed on the top of the support plate 1. The output ends of the two sets of first electric push rods 2 are connected to a linkage plate 3. A first motor 4 is embedded in the top of the linkage plate 3, and the output end of the first motor 4 is connected to an anti-deformation detection mold base 5. A drive assembly 6 is connected to the top of the support plate 1, and the impeller 7 to be tested is movably engaged in the top of the drive assembly 6. The drive assembly 6 is used to simulate the working environment of the impeller 7 to be tested. A detection groove 9 is opened at the center of the bottom central axis of the anti-deformation detection mold base 5. Several sets of detection slots 8 are also opened at the bottom of the anti-deformation detection mold base 5. The several sets of detection slots 8 are arranged in a circular array with the central axis of the detection groove 9 as the center. The detection groove 9 and the several sets of detection slots 8 are all fitted and connected to the top of the impeller 7 to be tested. An infrared detection assembly 10 for analyzing the surface deformation of the impeller 7 to be tested is embedded in the top of the anti-deformation detection mold base 5.

[0035] Furthermore, a drive arm of an industrial robot is connected to one side wall of the support plate 1.

[0036] Specifically, the drive assembly 6 is used to fix the impeller 7 to be tested at the top. It can also simulate the working environment of the impeller 7 under rotation, vibration and airflow interference. Then, the first electric push rod 2 drives the anti-deformation testing mold base 5 to fall, so that the testing groove 8 and testing recess 9 at the bottom of the anti-deformation testing mold base 5 are attached to the top of the impeller after testing. This is used to test the appearance of the impeller. It can also use the infrared detection assembly 10 to perform deformation analysis and detection on the surface of the impeller attached to the testing groove 8 and testing recess 9.

[0037] A guide rod 11 is connected through the center of the central axis of the deformation resistance testing mold base 5. The outer wall of the guide rod 11 is also provided with threads. An internal threaded hole is opened at the center of the central axis of the deformation resistance testing mold base 5, and the internal threaded hole is threadedly connected to the threads on the guide rod 11. A limit block 12 is fixedly connected to the bottom end of the guide rod 11. A first spring 13 is also sleeved on the guide rod 11, and the top end of the guide rod 11 is drively connected to the output end of the first motor 4. Several sets of positioning housings 15 are fixedly connected to the top of the deformation resistance testing mold base 5, and the bottom ends of the several sets of positioning housings 15 are all interconnected with the testing groove 8. Testing cavities 16 are opened on both sides of the outer wall of the several sets of positioning housings 15. Several sets of mounting holes 14 are also opened on the outer wall of the deformation resistance testing mold base 5, and the number of the several sets of mounting holes 14 is the same as the number of positioning housings 15. (Example, such as...) Figure 5 (As shown)

[0038] The drive assembly 6 includes a drive housing 61; for example, such as Figure 6 , Figure 7 and Figure 8 As shown.

[0039] The top of the drive housing 61 is an open structure. A handwheel 62 is rotatably connected to one side of the outer wall of the drive housing 61. Hollow sliding cavities 63 are formed on both sides of the outer wall of the drive housing 61. Linkage blocks 64 are slidably connected to the inner walls of the two sets of hollow sliding cavities 63. A first lead screw is threaded laterally onto the linkage block 64. One end of the first lead screw is fixedly connected to the handwheel 62. A second electric push rod 65 is fixedly connected to both sides of the outer wall of the linkage block 64. An adjusting block 66 is drivenly connected to the output end of the second electric push rod 65. A vertical rod is longitudinally connected through the adjusting block 66. A linkage ball 67 is fixedly connected to the top of the vertical rod, and a vibration motor 68 is fixedly connected to the bottom of the vertical rod. Two sets of second springs 69 are sleeved on the vertical rod. A [missing information - likely a device or component] is installed on the outer wall of the drive housing 61 away from the handwheel 62. A servo motor is provided, and the output end of the servo motor is driven by a driven gear 610. An air injection pipe 611 is fixedly connected to the outer wall of the driven gear 610, and the other end of the air injection pipe 611 is rotatably connected to the other side of the outer wall of the drive housing 61. Several sets of through holes 612 are opened on the outer wall of the air injection pipe 611 in the direction close to the drive housing 61. An air pump is also embedded in the outer wall of the air injection pipe 611. A bracket 613 is fixedly connected to one side of the outer wall of the drive housing 61. A second motor 614 is embedded in the bracket 613. The output end of the second motor 614 is driven by a second lead screw 616. A rack 615 is threaded on the second lead screw 616, and one side wall of the rack 615 is attached to the outer wall of the drive housing 61. The top of the rack 615 is meshed with the driven gear 610.

[0040] The top of the drive housing 61 is also provided with an annular housing 617. The top of the annular housing 617 has several sets of adsorption holes 618, and several sets of vacuum pumps 623 are embedded in one side of the outer wall of the annular housing 617. Vertical plates 624 are fixedly connected to the outer walls of the several sets of vacuum pumps 623. Bolts 625 are threadedly connected to the vertical plates 624, and one end of the bolts 625 is in movable contact with the outer wall of the impeller 7 of the fan under test. An internal gear ring 619 is fixedly connected to the inner wall of the annular housing 617, and two sets of driving teeth are meshed on the internal gear ring 619. The bottom of each of the two sets of drive gears 620 is connected to the output end of a third motor 621. Each of the two sets of third motors 621 is fixedly connected to a track block 626 on the side away from the output end. The top of the track block 626 is provided with two sets of track guide grooves 627. The bottom end of the annular housing 617 is fixedly connected to a ball ring 622, and the ball ring 622 is slidably connected to the inner wall of the two sets of track guide grooves 627. A crossbeam 628 is embedded in the track block 626. The crossbeam 628 and the track block 626 are both fixedly connected to the inner wall of the drive housing 61.

[0041] The infrared detection component 10 includes a linked fan ring 101; for example, such as Figure 9 As shown.

[0042] The linkage fan ring 101 is provided in several groups, and the several groups of linkage fan ring 101 are spliced ​​into a ring structure. An assembly block 102 is embedded in the central axis of the linkage fan ring 101. An infrared rangefinder 103 is embedded in both side walls of the assembly block 102. The infrared rangefinder 103 is set at the same horizontal level as the detection cavity 16. The output end of the third electric push rod 104 is connected to one side of the outer wall of the assembly block 102. The side of the third electric push rod 104 away from the output end is fixedly installed on the inner wall of the mounting hole 14. A guide positioning crossbar 105 is horizontally connected through the end connection of the several groups of linkage fan ring 101. A stop block 106 is fixedly connected to one end of the guide positioning crossbar 105. The other end of the guide positioning crossbar 105 is fixedly connected to the inner wall of the anti-deformation detection mold base 5. A positioning nut 107 is threaded on the guide positioning crossbar 105.

[0043] Specifically, the top of the annular housing 617 is used to horizontally place the impeller 7 to be tested, and after rotating several sets of bolts 625 to position its end at the outer edge of the impeller 7 to be tested, several sets of vacuum pumps 623 are used to continuously operate, so that negative pressure is generated inside the annular housing 617, and several sets of adsorption holes 618 are used to adsorb different positions of the impeller 7 to be tested.

[0044] The output end of the third motor 621 drives the drive gear 620 to rotate, causing the annular housing 617 threaded onto the drive gear 620 to rotate synchronously, and driving the impeller 7 of the fan under test to operate at high speed without damaging the mounting holes of the impeller 7 of the fan under test, and without affecting the sale of the impeller 7 of the fan under test.

[0045] The rotation of the handwheel 62 drives the first lead screw to move the two sets of linkage balls 67 horizontally along the radial direction of the first lead screw. This is used to switch the positions of the two sets of linkage balls 67 at the bottom of the ball ring 622. During the rotation of the annular housing 617, the continuous operation of the vibration motor 68 and the reciprocating up and down movement of the second spring 69 drive the linkage balls 67 to repeatedly strike different positions at the bottom of the ball ring 622. This is used to simulate the state of the impeller 7 under test rotating under vibration, and to accelerate the deformation of the impeller 7 under test.

[0046] The continuous operation of the air pump on the air injection pipe 611 causes gas to be blown through several sets of through holes 612 onto the upper surface of the impeller 7 of the fan under test, which is in a rotating and vibrating state. The second motor 614 drives the second lead screw 616 to rotate, and the rack 615 drives the driven gear 610 to rotate during horizontal movement. This causes the air injection pipe 611 to rotate around the driven gear 610, which is used to switch the angle at which the gas is blown onto the upper surface of the impeller 7 of the fan under test through several sets of through holes 612, so that the gas interferes with the upper surface of the impeller 7 of the fan under test from different directions.

[0047] The output end of the first electric push rod 2 drives the linkage plate 3 to fall, and after manually rotating the anti-deformation detection mold base 5, the internal thread hole on the anti-deformation detection mold base 5 is separated from the thread on the guide rod 11. Then, the tension of the first spring 13 on the guide rod 11 is used to resist the anti-deformation detection mold base 5 to fall. Then, the two sets of first electric push rods 2 drive the anti-deformation detection mold base 5 to move further down, so that the anti-deformation detection mold base 5 moves downward closer to the impeller 7 of the fan to be tested. Under the action of manually rotating the anti-deformation detection mold base 5, the contact position between the top of the several sets of detection grooves 8 and the top of the impeller 7 of the fan to be tested is adjusted. When the top of the impeller 7 of the fan to be tested can be attached to the several sets of detection grooves 8, it is determined that the impeller 7 of the fan to be tested after interference is not deformed.

[0048] The output ends of several sets of third electric push rods 104 can also horizontally push the assembly block 102, causing the infrared rangefinders 103 on both sides of the assembly block 102 to move horizontally to both sides of the detection cavity 16. During the horizontal movement, the infrared rangefinders 103 detect the unevenness of the surface of the impeller 7 to be tested inside the positioning housing 15. When the surface of the impeller 7 to be tested is uneven or deformed, the infrared rangefinders 103 can detect the change in the distance between the blades of the impeller 7 to be tested. This allows the testing personnel to judge whether the impeller 7 to be tested has deformed after the deformation test based on the abnormality of the distance change.

[0049] The working principle of an industrial robot for detecting the deformation resistance of a bladed wind turbine, as proposed in this embodiment of the invention, is as follows:

[0050] The top of the annular housing 617 is used to horizontally place the impeller 7 to be tested. After the ends of the impeller 7 are positioned at the outer edge of the wall by rotating several sets of bolts 625, the impeller 7 is continuously operated by several sets of vacuum pumps 623 to generate negative pressure inside the annular housing 617 and adsorb different positions of the impeller 7 to be tested by several sets of adsorption holes 618.

[0051] The output of the third motor 621 drives the drive gear 620 to rotate, causing the annular housing 617 threaded onto the drive gear 620 to rotate synchronously, and driving the impeller 7 of the fan under test to operate at high speed without damaging the mounting holes of the impeller 7 of the fan under test, and without affecting the sales of the impeller 7 of the fan under test.

[0052] The rotation of the handwheel 62 drives the first lead screw to move the two sets of linkage balls 67 horizontally along the radial direction of the first lead screw. This is used to switch the positions of the two sets of linkage balls 67 at the bottom of the ball ring 622. During the rotation of the annular housing 617, the continuous operation of the vibration motor 68 and the reciprocating up and down movement of the second spring 69 drive the linkage balls 67 to repeatedly strike different positions at the bottom of the ball ring 622. This is used to simulate the state of the impeller 7 under test rotating under vibration, and to accelerate the deformation of the impeller 7 under test.

[0053] By continuously operating the air pump on the air injection pipe 611, gas is blown through several sets of through holes 612 onto the upper surface of the impeller 7 of the fan under test, which is rotating and vibrating. The second motor 614 drives the second lead screw 616 to rotate, and the rack 615 drives the driven gear 610 to rotate during horizontal movement. This causes the air injection pipe 611 to rotate around the driven gear 610, which is used to switch the angle at which the gas is blown onto the upper surface of the impeller 7 of the fan under test through several sets of through holes 612, so that the gas interferes with the upper surface of the impeller 7 of the fan under test from different directions.

[0054] The output end of the first electric push rod 2 drives the linkage plate 3 to fall, and after manually rotating the anti-deformation detection mold base 5, the internal thread hole on the anti-deformation detection mold base 5 is separated from the thread on the guide rod 11. Then, the tension of the first spring 13 on the guide rod 11 is used to push the anti-deformation detection mold base 5 to fall. Then, the two sets of first electric push rods 2 drive the anti-deformation detection mold base 5 to move further down, so that the anti-deformation detection mold base 5 moves downward closer to the impeller 7 of the fan to be tested. Under the action of manually rotating the anti-deformation detection mold base 5, the contact position between several sets of detection grooves 8 and the top of the impeller 7 of the fan to be tested is adjusted. When the top of the impeller 7 of the fan to be tested can be attached to several sets of detection grooves 8, it is determined that the impeller 7 of the fan to be tested after interference is not deformed.

[0055] The assembly block 102 can be horizontally pushed by the output ends of several sets of third electric push rods 104, so that the infrared rangefinders 103 on both sides of the assembly block 102 can move horizontally to both sides of the detection cavity 16. During the horizontal movement, the infrared rangefinders 103 can detect the unevenness of the surface of the impeller 7 to be tested inside the positioning housing 15. When the surface of the impeller 7 to be tested is uneven or deformed, the infrared rangefinders 103 can detect the change in the distance between the blades of the impeller 7 to be tested. This allows the testing personnel to judge whether the impeller 7 to be tested has deformed after the deformation resistance test based on the abnormality of the distance change.

[0056] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An industrial robot for detecting the deformation resistance of a bladed fan impeller, characterized in that: The system includes a support plate; two sets of first electric push rods are mounted on the top of the support plate, and the output ends of the two sets of first electric push rods are connected to a linkage plate. A first motor is embedded in the top of the linkage plate, and the output end of the first motor is connected to an anti-deformation detection mold base. A drive assembly is connected to the top of the support plate, and the impeller to be tested is movably engaged in the top of the drive assembly. The drive assembly is used to simulate the working environment of the impeller to be tested. A detection groove is opened at the center of the bottom central axis of the anti-deformation detection mold base. Several sets of detection slots are also opened at the bottom of the anti-deformation detection mold base. The detection groove and several sets of detection slots are all fitted and connected to the top of the impeller to be tested. An infrared detection assembly for analyzing the surface deformation of the impeller to be tested is embedded in the top of the anti-deformation detection mold base. A guide rod is connected through the center of the central axis of the deformation resistance testing mold base. The outer wall of the guide rod is also provided with a thread. An internal threaded hole is opened at the center of the central axis of the deformation resistance testing mold base, and the internal threaded hole is threadedly connected to the thread on the guide rod. A limit block is fixedly connected to the bottom end of the guide rod. A first spring is also sleeved on the guide rod, and the top end of the guide rod is drivenly connected to the output end of the first motor. Several sets of positioning housings are fixedly connected to the top of the deformation resistance testing mold base, and the bottom ends of the several sets of positioning housings are all connected to the detection groove. Detection cavities are opened on both sides of the outer wall of the several sets of positioning housings. Several sets of mounting holes are also opened on the outer wall of the deformation resistance testing mold base, and the number of the several sets of mounting holes is the same as that of the positioning housings.

2. The industrial robot for detecting the impeller deformation resistance of a bladed fan according to claim 1, characterized in that: The drive assembly includes a drive housing; the top of the drive housing is an open structure, a handwheel is rotatably connected to one side of the outer wall of the drive housing, hollow sliding cavities are provided on both sides of the outer wall of the drive housing, and linkage blocks are slidably attached to the inner walls of the two sets of hollow sliding cavities. A first lead screw is threaded laterally onto the linkage block, one end of the first lead screw is fixedly connected to the handwheel, and a second electric push rod is fixedly connected to both sides of the outer wall of the linkage block. An adjusting block is driven to the output end of each of the second electric push rods, and a vertical rod is longitudinally connected through the adjusting block. A linkage ball is fixedly connected to the top end of the vertical rod, and a vibration motor is fixedly connected to the bottom end of the vertical rod.

3. The industrial robot for detecting the impeller deformation resistance of a bladed fan according to claim 2, characterized in that: Two sets of second springs are sleeved on the vertical rod. A servo motor is installed on the outer wall of the drive housing away from the handwheel. The output end of the servo motor is connected to a driven gear. An air injection pipe is fixedly connected to the outer wall of the driven gear. The other end of the air injection pipe is rotatably connected to the other side of the outer wall of the drive housing. Several sets of through holes are opened on the outer wall of the air injection pipe in the direction close to the drive housing.

4. The industrial robot for detecting the impeller deformation resistance of a bladed fan according to claim 3, characterized in that: An air pump is also embedded in the outer wall of the air injection pipe. A bracket is fixedly connected to one side of the outer wall of the drive housing. A second motor is embedded in the bracket. A second lead screw is driven to the output end of the second motor. A rack is threaded onto the second lead screw. One side wall of the rack is attached to the outer wall of the drive housing. The top of the rack is meshed with the driven gear.

5. The industrial robot for detecting the impeller deformation resistance of a bladed fan according to claim 4, characterized in that: The top of the drive housing is also provided with an annular housing, the top of which has several sets of adsorption holes, and several sets of vacuum pumps are embedded in one side of the outer wall of the annular housing.

6. The industrial robot for detecting the impeller deformation resistance of a bladed fan according to claim 5, characterized in that: A vertical plate is fixedly connected to the outer wall of several sets of vacuum pumps, and bolts are threaded onto the vertical plate, with one end of the bolts in movable contact with the outer wall of the impeller of the fan to be tested.

7. The industrial robot for detecting the impeller deformation resistance of a bladed fan according to claim 6, characterized in that: An internal gear ring is fixedly connected to the inner wall of the annular shell. Two sets of drive gears are meshed on the internal gear ring. The bottom of each set of drive gears is connected to the output end of a third motor. A track block is fixedly connected to the side of each set of third motors away from the output end.

8. The industrial robot for detecting the impeller deformation resistance of a bladed fan according to claim 7, characterized in that: The top of the track block has two sets of track guide grooves. The bottom of the annular shell is fixedly connected to a ball ring, which is slidably connected to the inner wall of the two sets of track guide grooves. A crossbeam is embedded in the track block, and both the crossbeam and the track block are fixedly connected to the inner wall of the drive housing.

9. The industrial robot for detecting the impeller deformation resistance of a bladed fan according to claim 1, characterized in that: The infrared detection component includes a linkage fan ring; the linkage fan ring is provided in several groups, and the several groups of linkage fan rings are spliced ​​into a ring structure. An assembly block is embedded in the central axis of the linkage fan ring. An infrared rangefinder is embedded in both side walls of the assembly block, and the infrared rangefinder is set at the same horizontal level as the detection cavity. The output end of a third electric push rod is drivenly connected to one side of the outer wall of the assembly block, and the side of the third electric push rod away from the output end is fixedly installed in the inner wall of the mounting hole. A guide positioning crossbar is transversely connected to the end connection of the several groups of linkage fan rings. A stop block is fixedly connected to one end of the guide positioning crossbar, and the other end of the guide positioning crossbar is fixedly connected to the inner wall of the anti-deformation detection mold base. A positioning nut is threaded onto the guide positioning crossbar.

Images