Special device for cleaning and detecting single aviation fastener

Abstract

The invention provides a special device for cleaning and detecting a single aviation fastener, which comprises a device shell, the device shell comprises a machine shell, an opening and closing machine cover and a bottom plate, the machine shell is connected with the bottom plate, the opening and closing machine cover is connected with the machine shell, the bottom plate fixes the machine shell, and a high-pressure cleaning module, a detection module, an opening and closing bin door assembly and a clamping mechanism are arranged in the device shell; the machine shell is provided with a clamping mechanism through hole in the side face of the high-pressure cleaning module, the supporting plate is connected with the bottom plate, the trapezoidal supporting component and the detection module, the high-pressure cleaning module is fixed to the side face of the trapezoidal supporting component and provided with an opening and closing bin gate assembly, a detection lens is arranged at the position of the detection module, and a material channel is arranged under the detection lens. And the control panel is arranged on the outer surface of the machine shell, a control unit is arranged in the control panel, and the control unit is connected with the detection lens, the high-pressure cleaning module, the detection module, the clamping mechanism and the machine box. The special device for cleaning and detecting the single aviation fastener can be conveniently disassembled or moved, so that multiple purposes are achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of aerospace fastener process detection, and particularly relates to a special device for realizing single-piece cleaning and detection of aerospace fasteners. Background Art

[0002] Aerospace fasteners play a crucial role in aerospace manufacturing, and their quality directly affects the safety and reliability of aircraft. Before use, aerospace fasteners need to be strictly detected. Before detection, aerospace fasteners need to be cleaned to ensure that the detection results are not interfered by water films and oil fluids. At the same time, the dry condition also facilitates the transfer of the next process. In the existing processing process, sampling detection is mostly adopted.

[0003] In the actual detection process of aerospace fasteners, there is a method of using a contact sensor to measure the diameter, but this method cannot detect dimensions such as angles and R angles; there is also a case of using a six-axis robot to remove the processed product and then detecting it through a laser detection device. However, the six-axis robot feeding method has a high input cost and occupies a large amount of site space. Due to the lack of a fast cleaning function, the detection accuracy is relatively low. Summary of the Invention

[0004] In view of this, the present invention aims to propose a special device for realizing single-piece cleaning and detection of aerospace fasteners, so as to solve the problem that the contact sensor for diameter measurement cannot detect dimensions such as angles and R angles, and the case of using a six-axis robot to remove the processed product and then detecting it through a laser detection device. However, the six-axis robot feeding method has a high input cost and occupies a large amount of site space. Due to the lack of a fast cleaning function, the detection accuracy is relatively low.

[0005] To achieve the above object, the technical solution of the present invention is realized as follows: The present invention provides a special device for realizing single-piece cleaning and detection of aviation fasteners, including a device housing, which includes a machine housing, an opening and closing machine cover, and a bottom plate for installing each module. The machine housing is connected to the bottom plate, the opening and closing machine cover is connected to the machine housing through a hinge, and a chassis is fixed on the bottom plate. The interior of the device housing is divided into a cleaning chamber and a detection chamber by a support plate, and the two parts include four modules, which are a high-pressure cleaning module, a detection module, an opening and closing chamber door assembly between the two, and an externally connected clamping mechanism; the machine housing is provided with a clamping mechanism through-hole on the side of the high-pressure cleaning module for the clamping mechanism to pass through. The bottom of the support plate is connected to the bottom plate, and a trapezoidal support member is fixed on one side surface and the detection module is fixed on the other side surface. The bottom surface of the trapezoidal support member is locked on the bottom plate. The high-pressure cleaning module is fixed on the side surface of the trapezoidal support member, and the opening and closing chamber door assembly is fixed inside. The first fastener through-hole provided on the trapezoidal support member is aligned with the second fastener through-hole provided on the support plate. A detection lens is provided at the detection module, and a material path is provided directly below the detection lens; a control panel is provided on the outer surface of the machine housing, and a control unit is provided inside the control panel. The control unit is respectively connected to the detection lens, the high-pressure cleaning module, the detection module, the clamping mechanism, and the chassis.

[0006] Further, a high-pressure cleaning module is provided in the cleaning chamber. The high-pressure cleaning module includes a solenoid valve, a cleaning head, an air source processor, a cleaning head mounting seat, a front photoelectric sensor, and a front photoelectric sensor mounting bracket. The cleaning head is fixed on the cleaning head mounting seat. The cleaning head mounting seats are symmetrically arranged with respect to the midline of the first fastener through-hole. The front photoelectric sensor is fixed on the front photoelectric sensor mounting bracket. The front photoelectric sensor mounting bracket is a bent sheet metal part, and the light source port of the front photoelectric sensor thereon is directly opposite to the air blowing position of the cleaning head. The front photoelectric sensor is used to detect the position of a single-piece aviation fastener clamped by the clamping mechanism. The cleaning head is connected to the air source processor controlled by the solenoid valve. The front photoelectric sensor is connected to the solenoid valve. The cleaning head mounting seat and the front photoelectric sensor mounting bracket are fixed on the mounting plane on the cleaning chamber side of the trapezoidal support member. The mounting bracket of the air source processor and the solenoid valve seat for fixing the solenoid valve are fixed on the mounting surface on the cleaning chamber side of the support plate. The front photoelectric sensor, the solenoid valve, and the air source processor are all connected to the control unit.

[0007] Further, the opening and closing door assembly includes a solenoid valve, an air source processor, an opening and closing door, a slide cylinder, and a rear photoelectric sensor. The opening and closing door is slidably fixed in the chute on the detection chamber side of the trapezoidal support member. The chute is provided on the back side of the first fastener through-hole. The rear photoelectric sensor is fixed in the stepped groove between the chute and the first fastener through-hole. The light source port of the rear photoelectric sensor faces the first fastener through-hole, and it is used to detect the position of the single-piece aviation fastener clamped by the clamping mechanism. The rear photoelectric sensor is connected to the slide cylinder. The side of the opening and closing door is fixed to the telescopic piston of the slide cylinder, and the slide cylinder is fixed in the installation groove on the detection chamber side of the trapezoidal support member. Both the slide cylinder and the rear photoelectric sensor are connected to the control unit.

[0008] Further, a detection module is provided in the detection chamber. The detection module includes a lens mounting bracket, a detection lens, and a lens moving guide rail. The lens mounting bracket is L-shaped. A number of strengthening support ribs are provided on the lens mounting bracket to connect the vertical fixed end and the horizontal fixed section of the lens mounting bracket. The vertical fixed end of the lens mounting bracket is fixed to the top of the detection chamber side of the support plate. The horizontal fixed section of the lens mounting bracket fixes the lens moving guide rail. Two relatively installed detection lenses are fixedly connected to the lens moving guide rail. The detection lenses are arranged opposite to each other on the lens moving guide rail and can move respectively. The detection lenses are used for visual inspection of the single-piece aviation fastener clamped by the clamping mechanism. The detection lenses are connected to the control unit.

[0009] Further, the material channel includes an NG material channel and an OK material channel. A pulling handle and a second material box sensor are provided on the side of the OK material channel. The bottom of the NG material channel is inclined downward and is open at the connection with the machine shell. A first material box sensor is provided on the NG material channel. Both the second material box sensor and the first material box sensor are connected to the clamping mechanism and the control panel respectively.

[0010] Further, a blowing timing unit is provided in the control unit. A blowing timer is provided in the blowing timing unit. When the front photoelectric sensor connected to the control unit detects the detected single-piece aviation fastener, the solenoid valve and the air source processor are opened to blow air to the detected single-piece aviation fastener and start the blowing timing at the same time. A blowing duration is set in the blowing timing unit. When the blowing timing reaches the blowing duration, the control unit controls the solenoid valve to close the blowing, and judges that the blowing and cleaning process is over. The control unit controls the slide cylinder to act to open the opening and closing door until the rear photoelectric sensor detects the single-piece aviation fastener and judges that the detected single-piece aviation fastener enters the detection chamber.

[0011] Further, a single-piece detection unit is provided in the control unit, and a camera is provided in the single-piece detection unit to take pictures and detect comparison pictures. The camera takes pictures and detects comparison pictures as the qualified state pictures of parts. When the rear photoelectric sensor detects that the single-piece of the aviation fastener clamped by the clamping mechanism enters the detection bin, the control unit controls the detection lens to take pictures of it and compares the actual picture taken and detected with the qualified state picture of the part, and then determines the qualified state of the part and sends it to the corresponding material path through the clamping mechanism; when the single-piece of the aviation fastener clamped by the clamping mechanism is a qualified product, the clamping mechanism sends the single-piece of the fastener to the OK material path; when the single-piece of the aviation fastener clamped by the clamping mechanism is a non-qualified product, the clamping mechanism sends the single-piece of the fastener to the NG material path.

[0012] Further, an alarm unit is provided in the control unit. The alarm unit includes a bin door abnormality alarm unit, a camera abnormality alarm unit, and a clamping movement alarm unit. Each alarm unit is provided with its corresponding action abnormality alarm duration and abnormality detection timer. When any action exceeds the action abnormality alarm duration, it is judged that the actuator of the corresponding action is abnormal, and the part performing this action is protected by stopping the machine; the bin door abnormality alarm unit is provided with a bin door opening action timeout duration and a bin door opening abnormality detection timer. When the slide table cylinder moves, the opening and closing process of the opening and closing bin door is timed and judged according to the detection result of the slide table cylinder sensor. When the movement action of the slide table cylinder detected by the slide table cylinder sensor lasts longer than the bin door opening action timeout duration, the solenoid valve and the air source processor of the slide table cylinder action are protected by stopping the machine; the camera abnormality alarm unit is provided with a camera photographing abnormality timeout duration and a photographing abnormality detection timer. When the detection lens takes pictures, the abnormality timing judgment is carried out according to the shooting duration of the detection lens. When the shooting result of the lens lasts longer than the camera photographing abnormality timeout duration, the detection lens is protected by stopping the machine; the clamping movement alarm unit is provided with a clamping movement timeout duration and a clamping movement abnormality detection timer. When the single-piece of the aviation fastener clamped by the clamping mechanism is clamped and fed according to the detection result, the abnormality timing judgment is carried out during the clamping process. When the clamping and feeding duration exceeds the clamping movement timeout duration, the clamping mechanism is protected by stopping the machine.

[0013] Further, during the cleaning or detection process, the control unit is connected to the clamping mechanism, and the control unit maintains the clamping action detection. When the clamping mechanism is disconnected, the special device performs overall shutdown protection.

[0014] Compared with the prior art, the special device for realizing single-piece cleaning and detection of aviation fasteners of the present invention has the following advantages: In the present invention, the special device isolates the cleaning and detection areas in the special device by designing a double-chamber structure (cleaning chamber and detection chamber), and the sealed hatch integrated in the trapezoidal structural member ensures the cleanliness of the detection lens in the detection chamber during the cleaning process of the product. The device can be equipped with a highly integrated industrial control tablet computer, which is convenient for debugging the detection lens, and the device can be disassembled, assembled or moved conveniently as needed, and can realize multiple functions with one machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention.

[0016] In the drawings: Figure 1 is an overall axonometric schematic diagram of the special device for realizing single-piece cleaning and detection of aviation fasteners according to an embodiment of the present invention; Figure 2 is a front view schematic diagram of the special device for realizing single-piece cleaning and detection of aviation fasteners according to an embodiment of the present invention; Figure 3 is an internal top view schematic diagram of the special device for realizing single-piece cleaning and detection of aviation fasteners according to an embodiment of the present invention; Figure 4 is an internal axonometric schematic diagram of the cleaning chamber side of the special device for realizing single-piece cleaning and detection of aviation fasteners according to an embodiment of the present invention; Figure 5 is an internal axonometric schematic diagram of the detection chamber side of the special device for realizing single-piece cleaning and detection of aviation fasteners according to an embodiment of the present invention; Figure 6 is an axonometric schematic diagram of the cleaning chamber side of the opening and closing hatch assembly on the trapezoidal support member of the special device for realizing single-piece cleaning and detection of aviation fasteners according to an embodiment of the present invention; Figure 7 is an axonometric schematic diagram of the detection chamber side of the opening and closing hatch assembly on the trapezoidal support member of the special device for realizing single-piece cleaning and detection of aviation fasteners according to an embodiment of the present invention; Figure 8 is a schematic diagram of the cleaning process of the special device for realizing single-piece cleaning and detection of aviation fasteners according to an embodiment of the present invention; Figure 9 is a schematic diagram of the detection process of the special device for realizing single-piece cleaning and detection of aviation fasteners according to an embodiment of the present invention.

[0017] Description of the reference numerals: Open the machine cover; 2. Control panel; 3. Feeding channel; 4. Machine case; 5. Detection lens; 6. Lens mounting bracket; 7. Support plate; 8. Trapezoidal support member; 9. Solenoid valve; 10. Cleaning head; 11. Air source processor; 12. Bottom plate; 13. Machine shell; 14. Front photoelectric sensor mounting bracket; 15. Front photoelectric sensor; 16. Lens moving guide rail; 17. Slide table cylinder; 18. Cleaning head mounting seat; 19. First material box sensor; 20. Second material box sensor; 21. Rear photoelectric sensor; 22. Open and close the bin door. Detailed implementation manners

[0018] It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments may be combined with each other.

[0019] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "center", "longitudinal", "transverse", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as a limitation to the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, the meaning of "plurality" is two or more.

[0020] In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, the terms "mount", "connect", "couple" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood through specific situations.

[0021] The present invention will be described in detail below with reference to the drawings and in combination with the embodiments.

[0022] Refer to Figures 1-9As shown in the figure, this embodiment provides a special device for realizing single-piece cleaning and detection of aviation fasteners, including: a device housing, which includes a machine housing 13, an opening and closing machine cover 1, and a bottom plate 12 for installing each module. The machine housing 13 is connected to the bottom plate 12, and the opening and closing machine cover 1 is connected to the machine housing 13 through a hinge. A chassis 4 is fixed on the bottom plate 12. The interior of the device housing is divided into a cleaning chamber and a detection chamber by a support plate 7, and the two parts include four modules, which are a high-pressure cleaning module, a detection module, an opening and closing chamber door assembly between the two, and an externally connected clamping mechanism. A clamping mechanism through-hole is provided on the side of the machine housing 13 for the high-pressure cleaning module, which is used for the clamping mechanism to pass through. The bottom of the support plate 7 is connected to the bottom plate 12, and a trapezoidal support member 8 is fixed on one side surface and the detection module is fixed on the other side surface. The bottom surface of the trapezoidal support member 8 is locked on the bottom plate 12. The high-pressure cleaning module is fixed on the side surface of the trapezoidal support member 8, and the opening and closing chamber door assembly is fixed inside. A first fastener through-hole is provided on the trapezoidal support member 8 and is aligned with a second fastener through-hole provided on the support plate 7. A detection lens 5 is provided at the detection module, and a material channel 3 is provided directly below the detection lens 5. A control panel 2 is provided on the outer surface of the machine housing 13. A control unit is provided inside the control panel 2, and the control unit is respectively connected to the detection lens 5, the high-pressure cleaning module, the detection module, the clamping mechanism, and the chassis 4.

[0023] Specifically, in this embodiment, a high-pressure cleaning module is provided in the cleaning chamber. The high-pressure cleaning module includes a solenoid valve 9, a cleaning head 10, an air source processor 11, a cleaning head mounting seat 18, a front photoelectric sensor 15, and a front photoelectric sensor mounting bracket 14. The cleaning head 10 is fixed on the cleaning head mounting seat 18. The cleaning head mounting seat 18 is symmetrically arranged with respect to the midline of the first fastener through-hole. The front photoelectric sensor 15 is fixed on the front photoelectric sensor mounting bracket 14. The front photoelectric sensor mounting bracket 14 is a bent sheet metal part, and the light source port of the front photoelectric sensor 15 thereon is directly opposite to the air-blowing position of the cleaning head 10. The front photoelectric sensor 15 is used to detect the position of the single-piece aviation fastener clamped by the clamping mechanism. The cleaning head 10 is connected to the air source processor 11 controlled by the solenoid valve 9. The front photoelectric sensor 15 is connected to the solenoid valve. The cleaning head mounting seat 18 and the front photoelectric sensor mounting bracket 14 are fixed on the mounting plane on the cleaning chamber side of the trapezoidal support member 8. The mounting bracket of the air source processor 11 and the solenoid valve seat for fixing the solenoid valve 9 are fixed on the mounting surface on the cleaning chamber side of the support plate 7. The front photoelectric sensor 15, the solenoid valve 9, and the air source processor 11 are all connected to the control unit.

[0024] Specifically, in this embodiment, the opening and closing door assembly includes a solenoid valve 9, an air source processor 11, an opening and closing door 22, a slide table cylinder 17, and a rear photoelectric sensor 21. The opening and closing door 22 is slidably fixed in the chute on the detection chamber side of the trapezoidal support member 8. The chute is provided on the back side of the first fastener through-hole. The rear photoelectric sensor 21 is fixed in the stepped groove between the chute and the first fastener through-hole. The light source port of the rear photoelectric sensor 21 faces the position of the first fastener through-hole. It is used to detect the position of the single-piece aviation fastener clamped by the clamping mechanism. The rear photoelectric sensor 21 is connected to the slide table cylinder 17. The side of the opening and closing door 22 is fixed to the telescopic piston of the slide table cylinder 17. And the slide table cylinder 17 is fixed in the installation groove on the detection chamber side of the trapezoidal support member 8. A slide table cylinder sensor is provided inside the slide table cylinder 17. Both the slide table cylinder sensor and the rear photoelectric sensor 21 are connected to the control unit.

[0025] Specifically, in this embodiment, a detection module is provided in the detection chamber. The detection module includes a lens hanger 6, a detection lens 5, and a lens moving guide rail 16. The lens hanger 6 is L-shaped. A number of reinforcing support ribs are provided on the lens hanger 6 to connect the vertical fixed end and the horizontal fixed section of the lens hanger 6. The vertical fixed end of the lens hanger 6 is fixed to the top of the detection chamber side of the support plate 7. The horizontal fixed section of the lens hanger 6 fixes the lens moving guide rail 16. Two relatively installed detection lenses 5 are fixedly connected to the lens moving guide rail 16. The detection lenses 5 are arranged opposite to each other on the lens moving guide rail 16 and move respectively. The detection lenses 5 are used for visual inspection of the single-piece aviation fastener clamped by the clamping mechanism. The detection lenses 5 are connected to the control unit.

[0026] Specifically, in this embodiment, the material channel 3 includes an NG material channel and an OK material channel. A pulling handle and a second material box sensor 20 are provided on the side of the OK material channel. The bottom of the NG material channel is inclined downward and is provided with an opening at the connection with the machine shell 13. A first material box sensor 19 is provided on the NG material channel. Both the second material box sensor 20 and the first material box sensor 19 are respectively connected to the clamping mechanism and the control panel 2.

[0027] Specifically, in this embodiment, a blowing timing unit is provided in the control unit. A blowing timer is provided in the blowing timing unit. When the front photoelectric sensor connected to the control unit detects the single-piece aviation fastener to be detected, the solenoid valve and the air source processor are opened. Blowing is carried out on the single-piece aviation fastener to be detected and the blowing timing is started at the same time. A blowing duration is set in the blowing timing unit. When the blowing timing reaches the blowing duration, the control unit controls the solenoid valve to close the blowing, and judges that the blowing cleaning process is over. The control unit controls the slide table cylinder to actuate to open the opening and closing door until the rear photoelectric sensor detects the single-piece aviation fastener and judges that the single-piece aviation fastener to be detected enters the detection chamber.

[0028] Specifically, in this embodiment, a single-piece detection unit is provided in the control unit, and a camera is provided in the single-piece detection unit to take pictures and detect comparison pictures. The camera takes pictures and detects comparison pictures as the qualified state pictures of the parts. When the rear photoelectric sensor detects that a single-piece of the aviation fastener clamped by the clamping mechanism enters the detection bin, the control unit controls the detection lens to take pictures of it and compares the actual picture taken and detected with the qualified state picture of the part, and then determines the qualified state of the part and sends it to the corresponding chute through the clamping mechanism; when the single-piece of the aviation fastener clamped by the clamping mechanism is a qualified product, the clamping mechanism sends the single-piece of the fastener to the OK chute; when the single-piece of the aviation fastener clamped by the clamping mechanism is a non-qualified product, the clamping mechanism sends the single-piece of the fastener to the NG chute.

[0029] Specifically, in this embodiment, an alarm unit is provided in the control unit. The alarm unit includes a bin door abnormality alarm unit, a camera abnormality alarm unit, and a clamping movement alarm unit. Each alarm unit is provided with its corresponding action abnormality alarm duration and abnormality detection timer. When any action exceeds the action abnormality alarm duration, it is judged that the actuator of the corresponding action is abnormal, and the part performing this action is protected by stopping the machine; the bin door abnormality alarm unit is provided with a bin door opening action timeout duration and a bin door opening abnormality detection timer. When the slide table cylinder moves, the opening and closing process of the opening and closing bin door is timed and judged according to the detection result of the slide table cylinder sensor. When the movement action of the slide table cylinder detected by the slide table cylinder sensor lasts longer than the bin door opening action timeout duration, the solenoid valve and the air source processor of the slide table cylinder action are protected by stopping the machine; the camera abnormality alarm unit is provided with a camera photographing abnormality timeout duration and a photographing abnormality detection timer. When the detection lens takes pictures, the abnormality is timed and judged according to the shooting duration of the detection lens. When the lens shooting result lasts longer than the camera photographing abnormality timeout duration, the detection lens is protected by stopping the machine; the clamping movement alarm unit is provided with a clamping movement timeout duration and a clamping movement abnormality detection timer. When the single-piece of the aviation fastener clamped by the clamping mechanism is clamped and fed according to the detection result, the abnormality is timed and judged during the clamping process. When the clamping feeding duration exceeds the clamping movement timeout duration, the clamping mechanism is protected by stopping the machine.

[0030] Specifically, in this embodiment, during the cleaning or detection process, the control unit is connected to the clamping mechanism, and the control unit maintains the clamping action detection. When the clamping mechanism is disconnected, the special device performs overall shutdown protection.

[0031] The usage process is as follows: The workpiece to be measured is clamped by the clamp of the clamping mechanism. After passing through the photoelectric sensor in front of the high-pressure cleaning module, the high-pressure cleaning device is triggered to perform high-pressure cleaning on the workpiece. After the workpiece to be measured completes high-pressure cleaning, the photoelectric sensor behind the high-pressure cleaning device is passed through, triggering the slide table cylinder to complete the opening of the opening and closing hatch. The workpiece to be measured is clamped by the clamp of the clamping mechanism and passes through the opening and closing hatch. The workpiece to be measured is detected by the detection lens, the detection conclusion is judged by the detection software, a qualified / unqualified instruction is issued by combining the detection lens and the detection software, and the workpiece is released by the clamp corresponding to the qualified / unqualified material channel, completing the cleaning, detection, and sorting of one workpiece.

[0032] Refer to Figures 8-9 , Figure 8 In [reference], the photoelectric sensor 15 in front is the X0 photoelectric sensor in front, the cleaning head 10 is Y0 for the blowing action, the opening and closing hatch 22 is the Y1 hatch, the X2 hatch cylinder sensor is the slide table cylinder sensor provided inside the slide table cylinder 17, the photoelectric sensor 21 behind is the X1 sensor behind, and the Y4, X4, and X5 for the photographing action are the two detection lenses 5. Figure 9 In [reference], the Y9 feeding arm, YA feeding arm, Y8 feeding arm, and X9 feeding arm are the robotic arms of the externally connected clamping mechanism, and the X10 drop-out detection and X11 drop-out detection actions are the first cartridge sensor 19 and the second cartridge sensor 20. The detection lens 5 is used for measuring the external contour dimensions such as the angle, rod diameter, and R angle of the aviation bolt.

[0033] The special device isolates the cleaning and detection areas inside the special device by designing a double-chamber structure (cleaning chamber and detection chamber), and the integrated sealing hatch in the trapezoidal structural member ensures the cleanliness of the detection lens in the detection chamber during the cleaning process of the product. The device can be equipped with a highly integrated industrial control tablet computer, which is convenient for debugging the detection lens, and the device can be disassembled, installed, or moved conveniently according to needs, and can achieve multiple functions with one machine.

[0034] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A special device for cleaning and testing single aviation fasteners, characterized in that: The device comprises a housing, which comprises a housing (13), an opening and closing cover (1), and a bottom plate (12) for mounting each module, wherein the housing (13) is connected to the bottom plate (12), the opening and closing cover (1) is connected to the housing (13) by a hinge, a chassis (4) is fixed on the bottom plate (12), the interior of the housing is divided into two parts, a cleaning chamber and a detection chamber, by a support plate (7), and the two parts include four modules, namely a high-pressure cleaning module, a detection module, an opening and closing chamber door assembly between the two, and an externally connected clamping mechanism; the housing (13) is provided with a clamping mechanism through hole on the side of the high-pressure cleaning module, which is used for the clamping mechanism to pass through, the bottom of the support plate (7) is connected to the bottom plate (12), and one side A trapezoidal support member (8) is fixed on one side and a detection module is fixed on the other side; the bottom surface of the trapezoidal support member (8) is locked on the bottom plate (12); the side of the trapezoidal support member (8) fixes an opening and closing door assembly inside the high-pressure cleaning module; a first fastener through hole is provided on the trapezoidal support member (8) and it is directly opposite to a second fastener through hole provided on the support plate (7); a detection lens (5) is provided at the detection module, and a material channel (3) is provided directly below the detection lens (5); a control panel (2) is provided on the outer surface of the casing (13); a control unit is provided inside the control panel (2); the control unit is respectively connected to the detection lens (5), the high-pressure cleaning module, the detection module, the clamping mechanism, and the chassis (4).

2. The special device for cleaning and testing single aviation fasteners according to claim 1 is characterized in that: A high-pressure cleaning module is provided in the cleaning chamber, and the high-pressure cleaning module comprises a solenoid valve (9), a cleaning head (10), an air source processor (11), a cleaning head mounting seat (18), a front photoelectric sensor (15), and a front photoelectric sensor mounting frame (14); the cleaning head (10) is fixed on the cleaning head mounting seat (18); the cleaning head mounting seat (18) is symmetrically arranged with respect to the center line of the first fastener through hole; the front photoelectric sensor (15) is fixed on the front photoelectric sensor mounting frame (14); the front photoelectric sensor mounting frame (14) is a bent sheet metal part, and the light source port of the front photoelectric sensor (15) thereon is directly opposite to the blowing position of the cleaning head (10). The front photoelectric sensor (15) is used to detect the position of the single piece of aviation fastener clamped by the clamping mechanism. The cleaning head (10) is connected to the air source processor (11) controlled by the solenoid valve (9). The front photoelectric sensor (15) is connected to the solenoid valve. The cleaning head mounting seat (18) and the front photoelectric sensor mounting frame (14) are fixed on the mounting plane of the cleaning chamber side of the trapezoidal support member (8). The mounting frame of the air source processor (11) and the solenoid valve seat of the fixed solenoid valve (9) are fixed on the mounting surface of the cleaning chamber side of the support plate (7). The front photoelectric sensor (15), the solenoid valve (9) and the air source processor (11) are all connected to the control unit.

3. The special device for cleaning and testing single aviation fasteners according to claim 2 is characterized in that: The opening and closing door assembly includes: A solenoid valve (9), an air source processor (11), an opening and closing door (22), a slide cylinder (17), and a rear photoelectric sensor (21); the opening and closing door (22) is slidably fixed in a slide groove on the detection chamber side of the trapezoidal support member (8); the slide groove is arranged on the back side of the first fastener through hole; the rear photoelectric sensor (21) is fixed in a stepped groove between the slide groove and the first fastener through hole; the light source port of the rear photoelectric sensor (21) is directly opposite to the first fastener through hole, and is used to detect the position of a single aviation fastener clamped by a clamping mechanism; the rear photoelectric sensor (21) is connected to the slide cylinder (17); the side of the opening and closing door (22) is fixed to the telescopic piston of the slide cylinder (17); the slide cylinder (17) is fixed in the mounting groove on the detection chamber side of the trapezoidal support member (8); a slide cylinder sensor is arranged in the slide cylinder (17); the slide cylinder sensor and the rear photoelectric sensor (21) are both connected to a control unit.

4. The special device for cleaning and testing single aviation fasteners according to claim 1, characterized in that: A detection module is arranged in the detection chamber, the detection module comprising a lens mount (6), a detection lens (5), and a lens moving guide rail (16); the lens mount (6) is L-shaped, a plurality of reinforcing support ribs are arranged on the lens mount (6) to connect the vertical fixed end and the horizontal fixed section of the lens mount (6); the vertical fixed end of the lens mount (6) is fixed to the top of the support plate (7) on the detection chamber side, the horizontal fixed section of the lens mount (6) fixes the lens moving guide rail (16), two detection lenses (5) installed oppositely are fixedly connected to the lens moving guide rail (16), the detection lenses (5) are arranged oppositely on the lens moving guide rail (16), and move separately, the detection lenses (5) are used to perform visual inspection on a single piece of aviation fastener clamped by a clamping mechanism, and the detection lenses (5) are connected to a control unit.

5. The special device for cleaning and testing single aviation fasteners according to claim 1, characterized in that: The material channel (3) includes an NG material channel and an OK material channel. A pulling handle and a second material box sensor (20) are provided on the side of the OK material channel. The bottom of the NG material channel is inclined downward and is opened at the connection with the casing (13). A first material box sensor (19) is provided on the NG material channel. The second material box sensor (20) and the first material box sensor (19) are respectively connected to the clamping mechanism and the control panel (2).

6. The special device for cleaning and testing single aviation fasteners according to claim 3, characterized in that: An air blowing timing unit is provided in the control unit, and an air blowing timer is provided in the air blowing timing unit. When the front photoelectric sensor connected to the control unit detects the aviation fastener to be detected, the control solenoid valve and the air source processor are turned on, and the aviation fastener to be detected is blown and the air blowing timing is started at the same time. The air blowing timing unit is provided with an air blowing duration. When the air blowing timing reaches the air blowing duration, the control unit controls the solenoid valve to close the air blowing, and determines that the air blowing cleaning process is finished. The control unit controls the slide cylinder to open the opening and closing chamber door until the rear photoelectric sensor detects the aviation fastener and determines that the aviation fastener to be detected enters the detection chamber.

7. The special device for cleaning and testing single aviation fasteners according to claim 4, characterized in that: A single-piece inspection unit is provided in the control unit, and a camera photo inspection comparison diagram is provided in the single-piece inspection unit. The camera photo inspection comparison diagram is a part qualified state diagram. When the rear photoelectric sensor detects that a single piece of aviation fastener clamped by the clamping mechanism enters the inspection bin, the control unit controls the inspection lens to take a photo of it and compares the actual photo inspection picture with the part qualified state diagram, and then determines the qualified state of the part and sends it to the corresponding material channel through the clamping mechanism; when the single piece of aviation fastener clamped by the clamping mechanism is a qualified product, the clamping mechanism sends the single piece of fastener to the OK material channel; when the single piece of aviation fastener clamped by the clamping mechanism is an unqualified product, the clamping mechanism sends the single piece of fastener to the NG material channel.

8. The special device for cleaning and testing single aviation fasteners according to claim 6, characterized in that: An alarm unit is arranged in the control unit, and the alarm unit includes a door abnormality alarm unit, a camera abnormality alarm unit, and a clamping movement alarm unit. Each alarm unit is provided with its corresponding action abnormality alarm duration and an abnormality detection timer. When any action exceeds the action abnormality alarm duration, it is judged that the actuator of the corresponding action is abnormal, and the part executing this action is shut down for protection; the door abnormality alarm unit is provided with a door opening action timeout duration and a door opening abnormality detection timer. When the slide cylinder is in action, the opening and closing process of the door is timed and judged according to the detection result of the slide cylinder sensor. When the slide cylinder movement action detected by the slide cylinder sensor continues to exceed the door opening action timeout duration , the solenoid valve and air source processor of the slide cylinder are shut down for protection; the camera abnormality alarm unit is equipped with a camera shooting abnormality timeout and a shooting abnormality detection timer. When the detection lens is shooting, an abnormal timing judgment is made according to the shooting time of the detection lens. When the lens shooting result continues to exceed the camera shooting abnormality timeout, the detection lens is shut down for protection; the clamping movement alarm unit is equipped with a clamping movement timeout and a clamping movement abnormality detection timer. According to the detection result, the single piece of aviation fastener clamped by the clamping mechanism is clamped and fed, and an abnormal timing judgment is made during clamping. When the clamping and feeding time exceeds the clamping movement timeout, the clamping mechanism is shut down for protection.

9. The special device for cleaning and testing a single piece of aviation fasteners according to any one of claims 6-7, characterized in that: During the cleaning or testing process, the control unit is connected to the clamping mechanism, and the control unit maintains the clamping action detection. When the clamping mechanism is disconnected, the dedicated device performs overall shutdown protection.

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