Detection jig for automobile flange

Abstract

The application relates to the technical field of flange detection, and discloses a detection jig for automobile flange parts, which comprises a base, upper feeding conveying devices and lower feeding conveying devices are respectively arranged on the left and right sides of the top of the base, a support is arranged on the left side of the upper feeding conveying device, a horizontal driving mechanism is arranged above the support, and a lifting driving mechanism is arranged on the driving end of the horizontal driving mechanism. The upper feeding conveying device and the lower feeding conveying device can realize the feeding and discharging of the flange parts, the clamping mechanism can realize the transfer of the flange parts, the periphery of the flange parts can be detected, the upper detection mounting plate and the lower detection mounting plate are used in cooperation with the detection rod assembly, the upper surface and the lower surface of the flange parts and the hole position can be detected, compared with the prior art, the flange parts can be continuously detected, the periphery of the flange parts can be detected during the clamping process, and the detection efficiency of the prior art is effectively improved.

Description

Technical Field

[0001] This invention relates to the field of flange inspection technology, specifically to inspection fixtures for automotive flanges. Background Technology

[0002] Test fixtures are a category of fixtures specifically designed for testing and experimenting with a product's functionality, power calibration, lifespan, performance, and other aspects. Automotive flange testing fixtures are primarily used to inspect the various dimensional parameters of flange products, ensuring that automotive flanges meet technical requirements such as hole alignment, hole size compatibility, and the flatness of the flange mating surfaces during installation.

[0003] Existing patent (publication number: CN114234757A) discloses a testing fixture for automotive flange parts, relating to the field of automotive flange part testing tooling technology. This testing fixture includes a testing platform located on one side of the top of a cabinet. A positioning post is provided in the middle of the testing platform to sequentially install the flange part and a face profile plate from bottom to top. The positioning post and the flange part's shaft hole are elastically supported, and the positioning post and the face profile plate's shaft hole are sized to match. The testing platform also has multiple sets of clamping devices and multiple sets of pads. The clamping devices are distributed around the positioning post and slide along a horizontally positioned groove on the top of the testing platform to adjust the clamping position. The pads are also distributed around the positioning post. This invention, by setting up a testing platform, positioning post, face profile plate, clamping devices, pads, groove, and adjustment hole, solves the problems of existing testing fixtures being structurally complex, inconvenient to operate, only capable of testing flange parts of the same model, and lacking applicability.

[0004] In the process of realizing this invention, the inventors discovered that at least the following problems in the prior art have not been solved: When using the prior art, although different types of flanges can be inspected, the inspection process is not continuous. Loading and unloading both rely on manual handling of the flanges, and the inspection process also relies on visual inspection. It takes a lot of time to inspect a single flange, resulting in low inspection efficiency. Summary of the Invention

[0005] The purpose of this invention is to provide a testing fixture for automotive flange components to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a testing fixture for automotive flange parts, including a base, on the left and right sides of the top of the base respectively, a feeding conveyor and a discharging conveyor, a bracket is provided on the left side of the feeding conveyor, a horizontal drive mechanism is provided above the bracket, a lifting drive mechanism is provided at the drive end of the horizontal drive mechanism, and a clamping mechanism is provided at the drive end of the lifting drive mechanism.

[0007] The clamping mechanism includes a mounting base, which is installed on the drive end of the lifting drive mechanism. Telescopic drive devices are fixedly installed on both sides of the front of the mounting base. Each drive end of the two telescopic drive devices is provided with a clamping ring. An air chamber is fixedly installed on the inner circumference of each clamping ring. Several openings are provided on the inner side of the air chamber. An elastic tube is installed on the inner circumference of each of the several openings. The elastic tube is located inside the air chamber. A telescopic head is provided inside the elastic tube. The side of the telescopic head away from the hole is fixedly connected to the side of the elastic tube away from the hole.

[0008] A first lifting drive device is provided on the left side of the feeding and conveying device. The drive end of the first lifting drive device is provided with a rotary drive mechanism. The rotary drive mechanism is provided with two drive ends, and the two drive ends are respectively provided with an upper detection connecting plate and a lower detection connecting plate. A detection rod assembly is provided between the upper detection connecting plate and the lower detection connecting plate.

[0009] Mounting plates are fixedly mounted on the left side of both the first and second mounting columns. Rotary motors are mounted on both mounting plates. Drive wheels are mounted on the drive ends of both rotary motors. Both drive wheels are connected to the corresponding driven wheels via transmission belts.

[0010] Both the upper and lower detection connecting plates have several slots on the side near the detection rod assembly. Each slot contains an electromagnetic block. The dimensions of both ends of the detection rod assembly are adapted to the dimensions of the corresponding slots. The materials of both ends of the detection rod assembly are magnetic materials adapted to the electromagnetic blocks.

[0011] In a preferred embodiment of the present invention, the lower detection connecting plate is fixedly connected to the corresponding rotating ring, a connecting block is fixedly installed on the left side of the upper detection connecting plate, a connecting groove is opened on the right side of the upper rotating ring, the connecting block is rotatably installed in the connecting groove through a rotating shaft, a spring is fixedly installed on the top of the connecting block, and a pressure sensor is fixedly installed on the other end of the spring. The pressure sensor is embedded in the upper part of the connecting groove.

[0012] In a preferred embodiment of the present invention, the top side cross-section of the clamping ring and the air chamber is semi-circular, the air chamber is made of rigid material, the top of the air chamber is connected to an air inlet pipe, a gas flow sensor and a solenoid valve are provided on the air inlet pipe, and a pressure sensor is installed inside the air chamber.

[0013] In a preferred embodiment of the present invention, the horizontal drive mechanism includes a second rotary motor, a first screw is fixedly mounted on the drive end of the second rotary motor, a first slider is helically connected to the outer side of the first screw, the top inner wall of the top support of the first slider abuts against it, and the lifting drive mechanism is mounted on the first slider.

[0014] In a preferred embodiment of the present invention, the lifting drive mechanism includes a third rotary motor, a groove is provided on the front side of the first slider, the third rotary motor is fixedly installed on the upper side inside the groove, the drive end of the third rotary motor is fixedly installed on the second screw, the outer side of the second screw is helically connected to the second slider, and the second slider is the drive end of the lifting drive mechanism.

[0015] In a preferred embodiment of the present invention, the telescopic head is made of rubber and is hemispherical, and the elastic tube is a corrugated tube.

[0016] In a preferred embodiment of the present invention, the detection rod assembly includes a central rod or several peripheral rods, wherein the peripheral rods are arranged in a circular array with the central rod as the center.

[0017] In a preferred embodiment of the present invention, the rotary drive mechanism includes a first mounting column, which is mounted on the drive end of a first lifting drive device. A second lifting drive device is disposed on the top of the first mounting column, and a second mounting column is disposed on the drive end of the second lifting drive device. Rotary rings are rotatably mounted on the outer sides of both the first and second mounting columns via bearings. A driven wheel is fixedly mounted on the side of the rotating ring close to the second lifting drive device. The upper detection connecting plate and the lower detection connecting plate are respectively disposed on the right side of the two rotating rings.

[0018] Compared with the prior art, the present invention provides a testing fixture for automotive flange parts, which has the following advantages:

[0019] This inspection fixture for automotive flanges, comprising a loading and unloading conveyor, a clamping mechanism, an upper inspection mounting plate, and a lower inspection mounting plate, allows for the loading and unloading of flanges via the loading and unloading conveyors. The clamping mechanism facilitates the transfer of flanges and enables the inspection of their outer perimeter. The upper and lower inspection mounting plates, in conjunction with the inspection rod assembly, enable the inspection of the upper and lower surfaces of the flanges, as well as the hole positions. Compared to existing technologies, this invention not only achieves continuous inspection of flanges but also allows for the inspection of the flange's outer perimeter during clamping, effectively improving the inspection efficiency of existing technologies. Attached Figure Description

[0020] Other features, objects, and advantages of the present invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0021] Figure 1 This is a front view of the inspection fixture for automotive flange parts of the present invention;

[0022] Figure 2 This is a top view of the clamping mechanism of the inspection fixture for automotive flange parts of the present invention;

[0023] Figure 3 This is a schematic diagram of the end section of the air chamber of the inspection fixture for the automotive flange of the present invention;

[0024] Figure 4 This is a schematic diagram of the inner side of the inflation chamber of the inspection fixture for automotive flange parts of the present invention;

[0025] Figure 5 This is a top view of the lower inspection mounting plate of the inspection fixture for automotive flange parts of the present invention;

[0026] Figure 6 This is a bottom sectional view of the upper inspection mounting plate of the inspection fixture for automotive flange parts of the present invention;

[0027] Figure 7 This is a front sectional view of the upper inspection mounting plate of the inspection fixture for automotive flange parts of the present invention.

[0028] In the diagram: 1. Base; 2. Feeding conveyor; 3. Discharging conveyor; 4. Bracket; 5. Mounting base; 6. Telescopic drive device; 7. Clamping ring; 8. Inflation chamber; 9. Opening; 10. Elastic tube; 11. Telescopic head; 12. First lifting drive device; 13. First mounting column; 14. Second lifting drive device; 15. Second mounting column; 16. Rotary ring; 17. Driven wheel; 18. Upper detection connecting plate; 19. Lower detection connecting plate; 20. Detection rod assembly; 1. Mounting plate; 22. Rotary motor; 23. Drive wheel; 24. Drive belt; 25. Slot; 26. Electromagnetic block; 27. Connecting block; 28. Connecting groove; 29. ​​Spring; 30. Pressure sensor; 31. Inlet pipe; 32. Gas flow sensor; 33. Air pressure sensor; 34. Second rotary motor; 35. First screw; 36. First slider; 37. Third rotary motor; 38. Slide groove; 39. Second screw; 40. Second slider; 41. Solenoid valve. Detailed Implementation

[0029] To better understand the purpose, structure, and function of this invention, the inspection fixture for automotive flanges of this invention will be described in further detail below with reference to the accompanying drawings.

[0030] like Figures 1-7As shown, the present invention provides a technical solution: a testing fixture for automotive flange parts, including a base 1. A feeding conveyor 2 and a discharging conveyor 3 are respectively installed on the left and right sides of the top of the base 1. Both the feeding conveyor 2 and the discharging conveyor 3 are belt conveyors. A bracket 4 is provided on the left side of the feeding conveyor 2. A horizontal drive mechanism is provided above the bracket 4. A lifting drive mechanism is provided at the drive end of the horizontal drive mechanism. A clamping mechanism is provided at the drive end of the lifting drive mechanism. The horizontal drive mechanism can control the lifting drive mechanism to move horizontally, and the lifting drive mechanism can control the clamping mechanism to move horizontally. After the clamping mechanism clamps the flange part, the three mechanisms of the horizontal drive mechanism, the lifting drive mechanism, and the clamping mechanism cooperate to realize the transfer of the flange part.

[0031] The clamping mechanism includes a mounting base 5, which is installed on the drive end of the lifting drive mechanism. Telescopic drive devices 6, which are cylinders, are fixedly installed on both sides of the front of the mounting base 5. Each drive end of the two telescopic drive devices 6 is provided with a clamping ring 7. An inflation chamber 8 is fixedly installed on the inner circumference of each of the two clamping rings 7. Several openings 9 are provided on the inner side of each inflation chamber 8, and an elastic tube 10 is installed on the inner circumference of each of the openings 9. The elastic tube 10 is located inside the inflation chamber 8. The elastic tube 10 has a telescopic head 11 inside. The side of the telescopic head 11 away from the hole 9 is fixedly connected to the side of the elastic tube 10 away from the hole 9. In this embodiment, the top cross-section of the clamping ring 7 and the air chamber 8 are both semi-circular. The air chamber 8 is made of rigid material. The top of the air chamber 8 is connected to an air inlet pipe 31. A gas flow sensor 32 and a solenoid valve 41 are installed on the air inlet pipe 31. A pressure sensor 33 is installed inside the air chamber 8. The flange is fed to the... When the clamping mechanism is below, the lifting drive mechanism controls the clamping mechanism to move down. The two telescopic drive devices 6 can retract their drive ends simultaneously, bringing the two clamping rings 7 closer together to perform a clamping action, so that the inflation chamber 8 clamps the flange. After clamping, air is injected into the two inflation chambers 8, causing the telescopic head 11 to extend outside the inflation chamber 8 due to the gas injection. Both the pressure sensor 33 and the gas flow sensor 32 can be set to a standard value, which corresponds to the condition that the outer periphery of the flange is normal and there are no protrusions or depressions. When the gas enters the standard value of the gas flow sensor 32, the gas flow sensor 32 sends a signal to the solenoid valve 41 through the microprocessor in the prior art to block the air inlet pipe 31. At the same time, the pressure sensor 33 senses the air pressure inside the inflation chamber 8. When the outer periphery of the flange is normal or abnormal, the telescopic head 11 will overextend or underextend, and the air pressure will also be affected, thus determining that the outer periphery of the flange is abnormal. At this time, the pressure sensor 33 can send a signal to the computer or other terminal equipment through the microprocessor in the prior art to inform the staff that the outer periphery of the flange is abnormal.

[0032] A first lifting drive device 12 is provided on the left side of the unloading conveying device 3. A first mounting column 13 is provided at the driving end of the first lifting drive device 12. A second lifting drive device 14 is provided at the top of the first mounting column 13. A second mounting column 15 is provided at the driving end of the second lifting drive device 14. A rotating ring 16 is rotatably mounted on the outer side of both the first mounting column 13 and the second mounting column 15 via bearings. A driven wheel 17 is fixedly mounted on the side of the rotating ring 16 close to the second lifting drive device 14. An upper detection connecting plate 18 and a lower detection connecting plate 19 are respectively provided on the right side of the two rotating rings 16. A detection rod assembly 20 is provided between the upper detection connecting plate 18 and the lower detection connecting plate 19.

[0033] Mounting plates 21 are fixedly mounted on the left side of both the first mounting post 13 and the second mounting post 15. Rotary motors 22 are mounted on both mounting plates 21. Drive wheels 23 are mounted on the drive ends of both rotary motors 22. Both drive wheels 23 are connected to the corresponding driven wheels 17 via transmission belts 24.

[0034] The upper detection connecting plate 18 and the lower detection connecting plate 19 are provided with a plurality of slots 25 on the side near the detection rod assembly 20. Electromagnetic blocks 26 are provided inside the plurality of slots 25. The dimensions of both ends of the detection rod assembly 20 are adapted to the dimensions of the corresponding slots 25. The materials of both ends of the detection rod assembly 20 are magnetic materials adapted to the electromagnetic blocks 26.

[0035] After the flange is inspected on its outer periphery, the horizontal drive mechanism, the lifting drive mechanism, and the clamping mechanism work together to transfer the flange to the inspection rod assembly 20. At this time, the upper inspection mounting plate 18 is not above the inspection rod assembly 20. It is driven by the corresponding rotary motor 22 to rotate until it is misaligned with the inspection rod assembly 20. Under the constraint of the lower inspection mounting plate 19, the flange is inserted into the inspection rod assembly 20. Then, the upper inspection mounting plate 18 is driven by the corresponding rotary motor 22 to rotate and sweep across the top of the flange. If the upper inspection mounting plate 18 experiences significant obstruction, reduced speed, or stagnation, it indicates that the top surface or ground of the flange is uneven. If the flange cannot be inserted into the inspection rod assembly 20, it indicates an abnormal hole position. If an anomaly is detected, the upper detection mounting plate 18 is rotated by the upper rotary motor 22, and then the upper detection mounting plate 18 is moved down by the second lifting drive device 14, so that the top of the detection rod assembly 20 is inserted into the corresponding slot 25. The detection rod assembly 20 is attracted by the electromagnetic block 26. Then the upper detection mounting plate 18 is raised, so that the lower detection mounting plate 19 is separated from the bottom of the detection rod assembly 20. At this time, the lower detection mounting plate 19 is rotated by the lower rotary motor 22, so that the lower detection mounting plate 19 is misaligned with the flange. Then the entire rotary drive mechanism is moved up by the first lifting drive device 12, so that the flange is separated from the detection rod assembly 20 and moved to the unloading conveyor 3 to complete the unloading of the flange after inspection.

[0036] In this embodiment, the lower detection connecting plate 19 is fixedly connected to the corresponding rotating ring 16. A connecting block 27 is fixedly installed on the left side of the upper detection connecting plate 18, and a connecting groove 28 is opened on the right side of the upper rotating ring 16. The connecting block 27 is rotatably installed in the connecting groove 28 via a rotating shaft. A spring 29 is fixedly installed on the top of the connecting block 27, and a pressure sensor 30 is fixedly installed on the other end of the spring 29. The pressure sensor 30 is embedded in the upper part of the connecting groove 28. When the top surface of the flange or the ground is uneven, when the upper detection connecting plate 18 sweeps across the top surface of the flange and encounters a protruding position, it will exert a force on the spring 29. The pressure sensor 30 sends a signal to a computer or other terminal device through a microprocessor in the prior art to inform the staff that the top surface of the flange or the ground is abnormal. At the same time, it can provide a buffer when the upper detection connecting plate 18 encounters a protruding position to avoid deformation or damage to the upper detection connecting plate 18.

[0037] In this embodiment, the horizontal drive mechanism includes a second rotary motor 34, and a first screw 35 is fixedly installed on the drive end of the second rotary motor 34. The outer side of the first screw 35 is spirally connected to the first slider 36. The top inner wall of the top support 4 of the first slider 36 abuts against it. The lifting drive mechanism is installed on the first slider 36. When the second rotary motor 34 rotates the first screw 25, it can drive the first slider 36 to rotate, thereby realizing the horizontal movement of the lifting drive mechanism.

[0038] In this embodiment, the lifting drive mechanism includes a third rotary motor 37. The front of the first slider 36 is provided with a groove 38. The third rotary motor 37 is fixedly installed on the upper side inside the groove 38. The drive end of the third rotary motor 37 is fixedly installed on the second screw 39. The outer side of the second screw 39 is spirally connected to the second slider 40. The second slider 40 is the drive end of the lifting drive mechanism. The third rotary motor 37 can rotate the second screw 39, driving the second slider 40 to move up and down, thereby realizing the up and down movement of the clamping mechanism.

[0039] In this embodiment, the telescopic head 11 is made of rubber and is hemispherical, and the elastic tube 10 is a corrugated tube.

[0040] In this embodiment, the detection rod assembly 20 includes a central rod or several peripheral rods, and the several peripheral rods are arranged in a circular array with the central rod as the center. The configuration of the detection rod assembly 20 is adapted to the specific specifications of the flange.

[0041] In this embodiment, the pressure sensor 30 is model BW204, and the air pressure sensor 33 is model HP203N.

[0042] It is understood that the present invention has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of the invention. Furthermore, under the teachings of the present invention, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of the invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of the present invention.

Claims

1. A testing fixture for automotive flange components, including a base, characterized in that: A feeding conveyor and a discharging conveyor are respectively installed on the left and right sides of the top of the base. A bracket is provided on the left side of the feeding conveyor, and a horizontal drive mechanism is provided above the bracket. A lifting drive mechanism is provided at the drive end of the horizontal drive mechanism, and a clamping mechanism is provided at the drive end of the lifting drive mechanism. The clamping mechanism includes a mounting base, which is installed on the drive end of the lifting drive mechanism. Telescopic drive devices are fixedly installed on both sides of the front of the mounting base. Each drive end of the two telescopic drive devices is provided with a clamping ring. An air chamber is fixedly installed on the inner circumference of each clamping ring. Several openings are provided on the inner side of the air chamber. An elastic tube is installed on the inner circumference of each of the several openings. The elastic tube is located inside the air chamber. A telescopic head is provided inside the elastic tube. The side of the telescopic head away from the hole is fixedly connected to the side of the elastic tube away from the hole. A first lifting drive device is provided on the left side of the feeding and conveying device. The drive end of the first lifting drive device is provided with a rotary drive mechanism. The rotary drive mechanism is provided with two drive ends, and the two drive ends are respectively provided with an upper detection connecting plate and a lower detection connecting plate. A detection rod assembly is provided between the upper detection connecting plate and the lower detection connecting plate. The rotary drive mechanism includes a first mounting column, which is mounted on the drive end of a first lifting drive device. A second lifting drive device is provided on the top of the first mounting column, and a second mounting column is provided on the drive end of the second lifting drive device. Rotary rings are rotatably mounted on the outer sides of both the first and second mounting columns via bearings. A driven wheel is fixedly mounted on the side of the rotating ring close to the second lifting drive device. The upper detection connecting plate and the lower detection connecting plate are respectively located on the right side of the two rotating rings. Mounting plates are fixedly mounted on the left side of both the first and second mounting columns. Rotary motors are mounted on both mounting plates. Drive wheels are mounted on the drive ends of both rotary motors. Both drive wheels are connected to the corresponding driven wheels via transmission belts. Both the upper and lower detection connecting plates have several slots on the side near the detection rod assembly. Each slot contains an electromagnetic block. The dimensions of both ends of the detection rod assembly are adapted to the dimensions of the corresponding slots. The materials of both ends of the detection rod assembly are magnetic materials adapted to the electromagnetic blocks.

2. The inspection fixture for automotive flanges according to claim 1, characterized in that: The lower detection connecting plate is fixedly connected to the corresponding rotating ring. A connecting block is fixedly installed on the left side of the upper detection connecting plate. A connecting groove is opened on the right side of the upper rotating ring. The connecting block is rotatably installed in the connecting groove through a rotating shaft. A spring is fixedly installed on the top of the connecting block. A pressure sensor is fixedly installed on the other end of the spring. The pressure sensor is embedded in the upper part of the connecting groove.

3. The inspection fixture for automotive flanges according to claim 1, characterized in that: The clamping ring and the top side cross-section of the air chamber are both semi-circular. The air chamber is made of rigid material. The top of the air chamber is connected to an air inlet pipe. A gas flow sensor and a solenoid valve are installed on the air inlet pipe. A pressure sensor is installed inside the air chamber.

4. The inspection fixture for automotive flanges according to claim 1, characterized in that: The horizontal drive mechanism includes a second rotary motor, a first screw is fixedly installed on the drive end of the second rotary motor, a first slider is helically connected to the outer side of the first screw, the top inner wall of the top support of the first slider abuts against it, and the lifting drive mechanism is installed on the first slider.

5. The inspection fixture for automotive flanges according to claim 4, characterized in that: The lifting drive mechanism includes a third rotary motor. A groove is provided on the front of the first slider. The third rotary motor is fixedly installed on the upper side inside the groove. The drive end of the third rotary motor is fixedly installed on the second screw. The outer side of the second screw is spirally connected to the second slider. The second slider is the drive end of the lifting drive mechanism.

6. The inspection fixture for automotive flanges according to claim 1, characterized in that: The telescopic head is made of rubber and is hemispherical. The elastic tube is a corrugated pipe.

7. The inspection fixture for automotive flanges according to claim 1, characterized in that: The detection rod assembly includes a central rod or several peripheral rods, with the peripheral rods arranged in a circular array around the central rod.

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