Quality detection device for automobile cowl assembly

Abstract

The invention discloses a quality detection device for an automobile fan cover assembly, and relates to the field of automobile accessory detection, the quality detection device comprises a detection unit, the detection unit is provided with an enclosure frame, an outer ring body and an inner ring body are arranged on the inner side of the enclosure frame, a fan blade is rotatably mounted at the center of the inner ring body, and the upper and lower parts of the outer ring body are rotatably connected with the enclosure frame; the left portion and the right portion of the inner ring body are rotationally connected with the outer ring body, so that the angles of the inner ring body and the fan blades can be adjusted at will, angle sensors are installed on the rotating portions of the inner ring body and the outer ring body, and rotating shafts of the fan blades are connected with encoders. The angle sensor detects the rotation angle of the fan blades in the airflow direction and is used for detecting the airflow guiding angle of the fan cover, the encoder detects the rotation speed of the fan blades and is used for detecting the airflow guiding strength of the fan cover, and the plane movement framework plane adjustment detection unit corresponds to different positions of the fan cover. And comprehensive detection of the air flow guide quality of the fan cowl is realized.

Description

Technical Field

[0001] The present invention relates to the field of automotive parts inspection, and particularly to a quality inspection device for an automotive air deflector assembly. Background Art

[0002] The air deflector is an important component of an automotive radiator. As Figure 1 shown, one end of the air deflector is a round inlet, and the other end is a square outlet adapted to the contour of the radiator. The round inlet and the square outlet are connected by a curved shell. The air flow driven by the fan enters from the round inlet and acts on the surface of the radiator through the guidance of the air deflector.

[0003] The uniformity of the air flow guided by the air deflector affects the heat dissipation effect of the automotive radiator. The influencing factors include the curved shell structure of the air deflector, the position distribution of the ports, the port size ratio, etc. If the air flow guiding performance test can be carried out before the air deflector is put into use, it will be beneficial to control the quality of the air deflector and carry out targeted upgrading and transformation of the air deflector. However, there is currently a lack of effective testing means for the air flow guiding of the air deflector, and the diversion condition of the air deflector cannot be accurately reflected, resulting in a lack of targeted upgrading and transformation of the air deflector. Summary of the Invention

[0004] In order to make up for the deficiencies of the existing technology, the purpose of the present invention is to provide a quality inspection device for an automotive air deflector assembly, which is used to accurately control the air flow guiding quality of the air deflector and is beneficial to the targeted upgrading and transformation of the air deflector.

[0005] In order to solve the problems of the existing technology, the technical solution of the present invention is as follows: A quality inspection device for an automotive air deflector assembly includes a detection unit. The detection unit has a surrounding frame. An outer ring body and an inner ring body are arranged inside the surrounding frame. A fan blade is rotatably installed at the central part of the inner ring body. The upper and lower parts of the outer ring body are rotatably connected to the surrounding frame, and the left and right parts of the inner ring body are rotatably connected to the outer ring body, so that the inner ring body and the fan blade can be adjusted at any angle. Angle sensors are installed at the rotating parts of the inner ring body and the outer ring body, and an encoder is connected to the rotating shaft of the fan blade; A planar movement structure, which is aligned with the exhaust port of the air deflector. The planar movement structure is used to drive the detection unit to move planar and align with different positions of the exhaust port of the air deflector.

[0006] Preferably, the planar movement structure includes a main frame. Sliding seats are horizontally slidably arranged at the upper and lower parts of the main frame. A horizontally extending cross lead screw is rotatably arranged at the lower part of the main frame. The end of the cross lead screw is connected to a cross motor. The cross lead screw is threadedly connected to the sliding seats. A vertically extending vertical lead screw and a slide rod are connected between the two sliding seats. The end of the vertical lead screw is connected to a vertical motor. One side of the surrounding frame is threadedly connected to the vertical lead screw, and the other side of the surrounding frame is slidably connected to the slide rod.

[0007] Preferably, a first microswitch is provided at the edge of the sliding seat, and a number of first positioning grooves are horizontally and equidistantly distributed on the surface of the main body frame. When the sliding seat moves horizontally, the first microswitch passes through each first positioning groove in turn.

[0008] Preferably, a second microswitch is provided at the edge of the surrounding frame, and a number of second positioning grooves are equidistantly distributed on the surface of the sliding rod. When the surrounding frame slides vertically, the second microswitch passes through each second positioning groove in turn.

[0009] Preferably, the distribution spacing between adjacent first positioning grooves is the same as the width of the surrounding frame, and the distribution spacing between adjacent second positioning grooves is the same as the height of the surrounding frame.

[0010] Preferably, positioners are provided at the rotating parts of the inner ring body and the outer ring body, and at the rotating parts of the outer ring body and the surrounding frame. The positions of the positioners are symmetrical to the positions of the angle sensors, and the weights of the positioners and the angle sensors are the same.

[0011] Preferably, the positioner includes a housing. The end parts of the rotating shafts of the inner ring body and the outer ring body penetrate into the housing and are fixed with rotating columns. The end surface of the rotating column has a V-shaped recess. A square permanent magnet is linearly slidably arranged inside the housing. The surface of the permanent magnet has a positioning plate adapted to the V-shaped recess. A spring is arranged between the permanent magnet and the housing to push the positioning plate away from the V-shaped recess. An electromagnet is installed at the end of the housing. When the electromagnet is energized, it repels the permanent magnet to move, so that the positioning plate fits with the V-shaped recess.

[0012] Preferably, the angle of the V-shaped recess is greater than 90°, and the width of the V-shaped recess is not less than the width of the positioning plate.

[0013] Preferably, at the center position of the inner ring body on the leeward side of the fan blade, a tail fin plate is provided. The tail fin plate is composed of three plate members annularly distributed around the axis of the fan blade.

[0014] Preferably, two fixing frames extending horizontally are provided on the windward side of the main body frame. The two ends of the fixing frame are fixed with vertical sliding sleeves. The vertical sliding sleeves are vertically slidably connected to the main body frame. Screws penetrate through the vertical sliding sleeves and abut against the main body frame to position the height of the fixing frame. Two horizontal sliding sleeves are horizontally slidably arranged on the surface of the fixing frame. The horizontal sliding sleeves are used to contact the end surface of the wind protection cover. Screws penetrate through the end surface of the wind protection cover, the horizontal sliding sleeves and abut against the fixing frame to position the horizontal position of the wind protection cover.

[0015] Compared with the prior art, the advantages of the present invention are as follows: 1. In the present invention, through the staggered rotation setting among the inner ring body, the outer ring body, and the surrounding frame, the angle sensor is used to detect the rotation angle of the fan blade conforming to the air flow direction, for detecting the angle of the air flow guided by the air shroud, and the encoder is used to detect the rotation speed of the fan blade, for detecting the air flow guiding intensity of the air shroud. The planar movement structure is combined with the planar adjustment detection unit to correspond to different positions of the air shroud, realizing a comprehensive detection of the air flow guiding quality of the air shroud.

[0016] 2. In the present invention, a positioner is arranged at the symmetric position of the angle sensor for balancing the loads of the outer ring body and the inner ring body. By locking the angles of the outer ring body and the inner ring body through the positioner, the switching of the dual detection modes can be carried out. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic structural diagram of the air shroud assembly.

[0018] Figure 2 It is a schematic diagram of the air shroud for detection of the present invention.

[0019] Figure 3 It is a schematic diagram of the overall structure of the present invention.

[0020] Figure 4 It is a schematic diagram of the planar movement structure of the present invention.

[0021] Figure 5 It is a schematic diagram of the detection unit structure of the present invention.

[0022] Figure 6 It is a schematic diagram of the tail fin plate structure of the present invention.

[0023] Figure 7 It is a schematic diagram of the positioner structure of the present invention.

[0024] Figure 8 It is a schematic diagram of the alignment of the positioning plate and the rotating column of the present invention.

[0025] Reference numerals: 1, main body frame; 11, horizontal lead screw; 2, sliding seat; 21, vertical lead screw; 22, sliding rod; 3, surrounding frame; 31, outer ring body; 32, inner ring body; 4, fan blade; 41, encoder; 42, tail fin plate; 5, first microswitch; 51, first positioning groove; 6, second microswitch; 61, second positioning groove; 7, angle sensor; 8, positioner; 81, housing; 82, rotating column; 83, permanent magnet; 84, positioning plate; 85, electromagnet; 9, fixing frame; 91, vertical sliding sleeve; 92, horizontal sliding sleeve. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments.

[0027] The automobile wind shield assembly quality detection device simulates the working environment of the wind shield and drives the detection unit through a planar mobile structure to detect the wind force and wind direction at various positions of the wind shield exhaust port to determine the quality of the airflow conducted by the wind shield.

[0028] like Figure 3 , Figure 4 As shown, the plane moving structure includes a main frame 1, which is square in shape, and linear grooves are provided on the inner sides of the upper and lower sides of the main frame 1. Two slide seats 2 slide on the upper and lower parts of the main frame 1 respectively, and a horizontal lead screw 11 is rotatably installed in the linear groove at the lower part of the main frame 1 (it can also be arranged in the linear groove at the upper part), and the horizontal lead screw 11 is threadedly penetrated through the slide seat 2, and a horizontal motor is connected and installed at one end of the horizontal lead screw 11, and the horizontal motor is used to drive the horizontal lead screw 11 to rotate; like Figure 4 As shown, a vertically extending vertical screw 21 and a slide rod 22 are arranged between the two slide seats 2, both ends of the slide rod 2 are fixedly connected to the slide seat 2, both ends of the vertical screw 21 are rotationally connected to the slide seat 2, and a section of the vertical screw 21 is connected to the vertical motor through a meshing gear set, and the vertical motor is used to drive the vertical screw 21 to rotate.

[0029] The horizontal motor drives the horizontal screw 11 to rotate, which is used to drive the slide 2 to move horizontally and adjust the horizontal position of the detection unit. The vertical motor drives the vertical screw 21 to rotate, which is used to drive the detection unit to slide vertically along the slide rod 22 and adjust the vertical position of the detection unit, thereby realizing arbitrary adjustment of the plane position of the detection unit.

[0030] like Figure 5 , Figure 6 As shown, the detection unit has a square-shaped frame 3, and the left and right sides of the frame 3 are provided with connecting blocks. The connecting block on one side slides vertically with the slide rod 22, and the connecting block on the other side is threadedly connected with the vertical screw 21. An outer ring body 31 is arranged on the inner side of the frame 3, and an inner ring body 32 is arranged on the inner side of the outer ring body 31. The upper and lower symmetrical parts of the outer ring body 31 are rotatably connected with the frame 3 through a rotating shaft, and the left and right symmetrical parts of the inner ring body 32 are rotatably connected with the outer ring body 31 through a rotating shaft. Angle sensors 7 are installed on the rotating shafts of the inner ring body 32 and the outer ring body 31. The angle sensor 7 can adopt contact angle sensors such as capacitive and grating types. The inner ring body 32 has a radial frame inside, and the fan blades 4 are rotatably installed on the surface of the radial frame. The fan blades 4 are concentrically distributed with the inner ring body 32, and an encoder 41 is connected and installed at the rotating shaft end of the fan blade 4. The angle sensor 7 and the encoder 41 are connected to the computer through a controller.

[0031] like Figure 3As shown, two laterally extending fixing frames 9 are arranged on the windward side of the main frame 1, and vertical sliding sleeves 91 are fixed at both ends of the fixing frames 9. The vertical sliding sleeves 91 are vertically slidably connected to the main frame 1, and two horizontal sliding sleeves 92 are arranged on the surface of the fixing frames 9 for horizontal sliding.

[0032] The air guide quality inspection of the wind shield assembly is as follows: like Figure 2 As shown, adjust the height of the two fixing brackets 9 to align with the upper and lower edges of the wind shield exhaust port, then use screws to penetrate the vertical sliding sleeve 91 to contact the main frame 1 to locate the height of the fixing bracket 9, move the two horizontal sliding sleeves 92 horizontally to align with the fixing holes of the wind shield, use screws to penetrate the fixing holes of the wind shield, and the horizontal sliding sleeves 92 to contact the fixing brackets 9 to locate the horizontal position of the wind shield, complete the inspection and loading of the wind shield, and assemble the test fan to the circular air inlet surface of the wind shield; Turn on the test fan to drive the airflow to enter from the round opening of the wind shield and to be discharged from the square opening. The plane moving structure drives the detection unit to move in a plane step by step, and the airflow detection is carried out at different positions of the square opening of the wind shield in turn. The direction of the blade 4 can be adjusted arbitrarily by rotating the inner ring body 32 and the outer ring body 31, and the outer ring body 31 and the frame 3. A tail wing plate 42 is fixedly arranged at the center of the inner ring body 32 on the leeward side of the blade 4. The airflow acts on the blade 4 and the tail wing plate 42, so that the blade 4 is adjusted to face the wind direction. The angle sensors 7 of the shafts of the inner ring body 32 and the outer ring body 31 transmit the angle deflection information to the computer, and the data of the two angle sensors 7 are calculated to mark the wind direction in the area. The fan blades 4 rotate under the action of the airflow, and the rotation speed of the fan blades 4 is detected by the encoder 41, and the data is transmitted to the computer to mark the wind strength in the area; The planar mobile structure gradually changes the position of the detection unit to achieve comprehensive detection of wind direction and wind intensity at each position of the wind shield exhaust port.

[0033] like Figure 6 As shown, the tail wing plate 42 is composed of three plates distributed in a ring around the axis of the fan blade 4. The airflow acts on the tail wing plate 42 to adjust the angle of the fan blade 4 to ensure that the fan blade 4 can face the wind direction in time.

[0034] The rotation position of the inner ring body 32 and the outer ring body 31, and the rotation position of the outer ring body 31 and the surrounding frame 3 are not limited to the above-mentioned rotation positions. The rotation directions of the inner ring body 32 and the outer ring body 31 are perpendicular to each other, which can ensure that the planar direction of the inner ring body 32 and the fan blades 4 can be adjusted at will.

[0035] The position logic of the plane mobile architecture control detection unit is as follows: like Figure 4As shown in the figure, a first microswitch 5 is installed at the edge of one of the sliding seats 2. The touch end of the first microswitch 5 abuts against the surface of the main body frame 1. A number of first positioning grooves 51 are equally spaced horizontally on the surface of the main body frame 1. The distribution line of the first positioning grooves 51 coincides with the moving path of the first microswitch 5; A second microswitch 6 is installed on the surface of the edge connecting block of the surrounding frame 3. The touch end of the second microswitch 6 abuts against the sliding rod 22. A number of second positioning grooves 61 are equally spaced on the surface of the sliding rod 22. The distribution line of the second positioning grooves 61 coincides with the moving path of the second microswitch 6; The touch ends of the first microswitch 5 and the second microswitch 6 are both spherical. The first positioning grooves 51 and the second positioning grooves 61 are both spherical grooves. There is no electrical signal when the touch ends of the first microswitch 5 and the second microswitch 6 are in the abutting state. When the touch ends of the first microswitch 5 and the second microswitch 6 are aligned with the first positioning grooves 51 and the second positioning grooves 61, the abutting force disappears and an electrical signal is generated. The first microswitch 5 and the second microswitch 6 are connected to the horizontal motor and the vertical motor through the controller; The distribution spacing between adjacent first positioning grooves 51 is the same as the width of the surrounding frame 3. The distribution spacing between adjacent second positioning grooves 61 is the same as the height of the surrounding frame 3. The first positioning grooves 51 and the second positioning grooves 61 divide the surrounding frame 3 into several square detection areas. The area of a single square detection area is the same as that of the surrounding frame 3.

[0036] The detection unit can be programmed by the controller to pass through the square detection areas one by one horizontally first, and then change rows vertically to pass through the square detection areas one by one. Or the detection unit can be programmed by the controller to pass through the square detection areas one by one vertically first, and then change columns horizontally to pass through the square detection areas one by one; Taking the method of changing positions one by one horizontally and then changing rows vertically as an example: In the initial state, the detection unit is located in the square detection area at the edge of the top row of the main body frame 1. The horizontal motor is driven to rotate the horizontal lead screw 11, so that the sliding seat 2 drives the detection unit to move horizontally. When the first microswitch 5 is aligned with the next first positioning groove 51, the first microswitch 5 outputs an electrical signal to the controller, and the horizontal motor stops working, so that the detection unit performs horizontal position-changing detection. Similarly, the detection unit is controlled to perform horizontal position-changing detection one by one. When the detection unit moves to the last square detection area horizontally, the controller controls the vertical motor to work, and the vertical lead screw 21 rotates to drive the detection unit to move vertically, so that the second microswitch 6 moves to align with the next second positioning groove 61, realizing row-changing detection of the detection unit. And so on, the detection unit is controlled to pass through each square detection area in turn.

[0037] Such as Figure 5As shown, positioners 8 are provided at the rotating parts between the inner ring body 32 and the outer ring body 31 and between the outer ring body 31 and the surrounding frame 3. The position of the positioner 8 is symmetrical to the position of the angle sensor 7, and the positioner 8 has the same weight as the angle sensor 7, which is used to balance the gravity received by the inner ring body 32 and the outer ring body 31, so that the inner ring body 32 and the outer ring body 31 can deflect stably; Taking the positioner at the shaft end of the inner ring body 32 as an example, the installation and function of the positioner are described as follows: As Figure 7 , Figure 8 shown, the positioner 8 includes a housing 81. The housing 81 is fixed on the outer side of the outer ring body 31. The housing 81 has an inner cavity with a square cross-section. The shaft end of the inner ring body 32 penetrates into the housing 81 and is fixedly connected to a rotating column 82. The end face of the rotating column 82 has a V-shaped recess. The angle of the V-shaped recess is greater than 90°. A square permanent magnet 83 is linearly slidably arranged inside the housing 81. A positioning plate 84 is fixed on the surface of the permanent magnet 83 close to the rotating column 82. The positioning plate 84 is adapted to the V-shaped recess, and the width of the V-shaped recess is not less than the width of the positioning plate 84. A spring is arranged between the permanent magnet 83 and the housing 81 to push the positioning plate 84 to separate from the V-shaped recess. An electromagnet 85 is installed at the end of the housing 81. After the electromagnet 85 is energized, it generates a magnetic force to generate a repulsive force on the permanent magnet 83; During dual-mode detection, the electromagnet 85 is in a de-energized state. The elastic force of the spring causes the permanent magnet 83 to drive the positioning plate 84 to move, so that the permanent magnet 83 separates from the V-shaped recess. The inner ring body 32 can rotate freely. At this time, the fan blade 4 can rotate to detect the wind direction and detect the wind force intensity according to the rotation speed and height, realizing dual-mode detection; During single-mode detection, the electromagnet 85 is energized to generate a magnetic force. The magnetic force pushes the permanent magnet 83 and the positioning plate 84 to move, so that the positioning plate 84 is clamped with the V-shaped recess, automatically positioning the rotation angle of the shaft of the inner ring body 32, so that the inner ring body 32 and the outer ring body 31 are in the same plane. Similarly, the outer ring body 31 and the surrounding frame 3 are in the same plane, and the angle of the fan blade 4 is locked. In this mode, only the wind force intensity can be detected, and the wind direction is not detected. This mode simulates the wind pressure intensity received at each position on the plane of the automotive radiator.

[0038] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention.

Claims

1. A quality inspection device for an automobile windshield assembly, characterized in that: include: The detection unit comprises a surrounding frame (3), an outer ring body (31) and an inner ring body (32) are arranged inside the surrounding frame (3), a fan blade (4) is rotatably mounted on the central portion of the inner ring body (32), the upper and lower portions of the outer ring body (31) are rotatably connected to the surrounding frame (3), and the left and right portions of the inner ring body (32) are rotatably connected to the outer ring body (31), so that the angles of the inner ring body (32) and the fan blade (4) can be adjusted arbitrarily, angle sensors (7) are installed on the rotating portions of the inner ring body (32) and the outer ring body (31), and the rotating shaft of the fan blade (4) is connected to an encoder (41); The planar moving structure aligns the exhaust port of the wind shield and is used to drive the detection unit to move in a planar manner to align the exhaust port of the wind shield to different positions.

2. The automobile windshield assembly quality inspection device according to claim 1 is characterized in that: The planar movable structure comprises a main frame (1), wherein the upper and lower parts of the main frame (1) are both provided with slide seats (2) for transverse sliding movement, the lower part of the main frame (1) is provided with a transversely extending horizontal lead screw (11) for rotation, the end of the horizontal lead screw (11) is connected to a horizontal motor, the horizontal lead screw (11) is threadedly connected to the slide seat (2), a vertically extending vertical lead screw (21) and a slide rod (22) are connected between the two slide seats (2), the end of the vertical lead screw (21) is connected to a vertical motor, one side of the surrounding frame (3) is threadedly connected to the vertical lead screw (21), and the other side of the surrounding frame (3) is slidably connected to the slide rod (22).

3. The automobile windshield assembly quality inspection device according to claim 2 is characterized in that: A first micro switch (5) is provided at the edge of the slide seat (2), and a plurality of first positioning grooves (51) are distributed laterally and equidistantly on the surface of the main frame (1); when the slide seat (2) moves laterally, the first micro switch (5) passes through each first positioning groove (51) in sequence.

4. The automobile windshield assembly quality inspection device according to claim 3 is characterized in that: A second micro switch (6) is provided at the edge of the surrounding frame (3), and a plurality of second positioning grooves (61) are evenly distributed on the surface of the sliding rod (22). When the surrounding frame (3) slides vertically, the second micro switch (6) passes through each second positioning groove (61) in sequence.

5. The automobile windshield assembly quality inspection device according to claim 4, characterized in that: The distribution spacing of adjacent first positioning grooves (51) is the same as the width of the surrounding frame (3), and the distribution spacing of adjacent second positioning grooves (61) is the same as the height of the surrounding frame (3).

6. The automobile windshield assembly quality inspection device according to claim 1, characterized in that: The rotating parts of the inner ring body (32) and the outer ring body (31), and the rotating parts of the outer ring body (31) and the surrounding frame (3) are both provided with positioners (8); the position of the positioner (8) is symmetrical with the position of the angle sensor (7); and the positioner (8) and the angle sensor (7) have the same weight.

7. The automobile windshield assembly quality inspection device according to claim 6, characterized in that: The positioner (8) comprises a shell (81), the ends of the rotating shafts of the inner ring body (32) and the outer ring body (31) penetrate into the shell (81) and are fixed with a rotating column (82), the end surface of the rotating column (82) has a V-shaped recessed groove, a square permanent magnet (83) is linearly slidably arranged inside the shell (81), the surface of the permanent magnet (83) has a positioning plate (84) adapted to the V-shaped recessed groove, a spring is arranged between the permanent magnet (83) and the shell (81) for pushing the positioning plate (84) to separate from the V-shaped recessed groove, and an electromagnet (85) is installed at the end of the shell (81), and when the electromagnet (85) is energized, it repels the permanent magnet (83) to move, so that the positioning plate (84) fits the V-shaped recessed groove.

8. The automobile windshield assembly quality inspection device according to claim 7, characterized in that: The angle of the V-shaped recessed groove is greater than 90°, and the width of the V-shaped recessed groove is not less than the width of the positioning plate (84).

9. The automobile windshield assembly quality inspection device according to claim 1, characterized in that: The center position of the inner ring body (32) is located on the leeward side of the fan blade (4) and is provided with a tail wing plate (42), the tail wing plate (42) being composed of three plate members distributed in an annular manner around the axis of the fan blade (4).

10. The automobile windshield assembly quality inspection device according to claim 2, characterized in that: The windward surface of the main frame (1) is provided with two laterally extending fixing frames (9), two ends of the fixing frames (9) are fixed with vertical sliding sleeves (91), the vertical sliding sleeves (91) are vertically slidably connected to the main frame (1), screws penetrate the vertical sliding sleeves (91) and abut against the main frame (1) for positioning the height of the fixing frames (9), and two horizontal sliding sleeves (92) are horizontally slidably provided on the surface of the fixing frames (9), the horizontal sliding sleeves (92) are used to contact the end surface of the wind shield, screws penetrate the end surface of the wind shield, the horizontal sliding sleeves (92) abut against the fixing frames (9), and are used to position the horizontal position of the wind shield.

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