Laser measuring instrument for detecting flatness of end face of hub

Abstract

The invention discloses a laser measuring instrument for hub end face flatness detection, and relates to the technical field of hub plane measurement. The device comprises a device body, an intelligent instrument is arranged on the front face of the device body, a feeding mechanism is arranged on the back face in the device body, a material returning mechanism is arranged on the front face of the inner wall of the device body, a driver is arranged on the back face of the device body, and a material pushing mechanism is arranged on the top of the driver. And an electric telescopic rod is slidably mounted in the electric sliding rail. According to the invention, through swing absorption of the dust collection mechanism, the cleanliness of the hub is ensured, particles and dust are prevented from being attached to the top surface of the hub, the surface roughness of the hub is prevented from being increased, the interference of the laser instrument on the surface of the hub during laser scanning is reduced, the stripe definition and the measurement precision are ensured, and an arc-shaped plate performs shielding protection when the laser instrument is not used, so that the measurement precision is improved. Foreign objects are prevented from adhering to the mirror surface and blurring the mirror surface.

Description

Technical Field

[0001] The present invention relates to the technical field of wheel hub plane measurement, and specifically to a laser measuring instrument for detecting the flatness of the end face of a wheel hub. Background Art

[0002] A laser measuring instrument is a device that takes laser technology as the core and is used for the measurement and detection of physical quantities such as distance, speed, angle, and shape. Laser measuring instruments are widely used in many fields such as industrial manufacturing and scientific research, providing a good measurement method for the development of the production industry.

[0003] The patent with the patent announcement number CN216206085U discloses a plane measuring instrument for the construction inspection of building beams and columns, including a rotating platform and a measuring instrument body. A fixed block is fixedly connected to the top of the rotating platform, laser seats are fixedly connected to both the left and right sides of the fixed block, a round rod is fixedly connected to the top of the fixed block near the center, the measuring instrument body is fixedly connected to the top end of the round rod, and an adjusting mechanism is provided near the center at the bottom of the rotating platform. Through the mutual cooperation of various components, the device can accurately determine the angle during adjustment, and this function can achieve the angle positioning between the on-site beams and columns, making the data more accurate during detection and measurement, improving the accuracy of the detected data. Moreover, when manually adjusting, the angle can be automatically fixed. When the device needs to be stored, the support legs can be manually stored and folded, and through folding, the device has higher practicability during use.

[0004] However, this device still has deficiencies: the device is convenient for adjusting and determining the angle to ensure the laser measurement accuracy. However, during the workshop production of the wheel hub surface, dust and particulate matter are easily attached, which increases the surface roughness of the wheel hub. The increased roughness easily reduces the interference when the laser measuring instrument scans the wheel hub surface with laser, making it difficult to ensure the stripe clarity and measurement accuracy. Summary of the Invention

[0005] In view of the deficiencies of the prior art, the present invention provides a laser measuring instrument for detecting the flatness of the end face of a wheel hub, which solves the problems raised in the above background art.

[0006] To achieve the above object, the present invention is realized by the following technical solutions: A laser measuring instrument for detecting the flatness of the end face of a wheel hub, comprising a device main body. A smart instrument is provided on the front of the device main body. A feeding mechanism is provided on the back inside the device main body. A material returning mechanism is provided on the front inner wall of the device main body. A driver is provided on the back of the device main body. A pushing mechanism is provided on the top of the driver. An electric slide rail is fixedly installed on the top inner wall of the device main body. An electric telescopic rod is slidably installed inside the electric slide rail. A laser instrument is fixedly installed at the telescopic end of the electric telescopic rod. A negative pressure fan is fixedly installed through and on the outer wall of the electric telescopic rod. Two dust suction mechanisms are symmetrically and hinged at the bottom of the negative pressure fan. An anti-displacement device for ensuring the regular transportation of the wheel hub is arranged around the dust suction mechanism. An anti-tilting device for preventing the wheel hub from tilting is arranged below the anti-displacement device. A U-shaped plate is fixedly installed through and on the outer wall of the telescopic end of the electric telescopic rod. A contact roller is rotatably installed inside the U-shaped groove of the U-shaped plate. Two arc-shaped plates are symmetrically and hinged at the bottom of the negative pressure fan through torsion springs.

[0007] According to the above technical solutions, the smart instrument collects and summarizes the measurement data of the wheel hub. The feeding mechanism sequentially transports the wheel hubs for detection, and a chute is provided on the top of the feeding mechanism. The material returning mechanism is used to return the wheel hubs that do not meet the detection standards. The telescopic end of the pushing mechanism is located inside the device main body, and the pushing mechanism pushes the wheel hub on the top of the feeding mechanism to the top of the material returning mechanism.

[0008] According to the above technical solution, the laser instrument is connected to the intelligent instrument, and the laser instrument transmits the detection data to the intelligent instrument. A torsion spring is arranged between the top of the dust suction mechanism and the negative pressure fan, and the torsion spring provides the dust suction mechanism with a force to reset after movement. U-shaped grooves are provided at both ends of the top of the U-shaped plate, the outer wall of the resistance roller contacts the outer wall of the dust suction mechanism, the arc plate is located below the laser instrument, and the concave surface of the outer wall of the arc plate contacts the bottom of the U-shaped plate. The feeding mechanism detects and conveys the wheel hub. During the conveying of the wheel hub, the electric telescopic rod is started, and the telescopic end of the electric telescopic rod drives the laser instrument to move downward and reset. Then the electric slide rail is started, and the electric slide rail drives the electric telescopic rod to slide to the left inside itself and reset. The electric telescopic rod drives the laser instrument to move horizontally, that is, the laser instrument descends close to the wheel hub to emit laser, which is shot at one end of the top of the wheel hub, and then the light spot is extended through horizontal operation to measure the flatness of the wheel hub. The measurement is performed and the measurement data is reported to the intelligent instrument. The qualified wheel hub continues to be transported, while the unqualified wheel hub is pushed by the pushing mechanism and transported in the opposite direction by the returning mechanism. The negative pressure fan is started before the electric telescopic rod. The negative pressure fan transmits suction through the dust suction mechanism, and the dust suction mechanism pulls the top of the slowly transported wheel hub in an inclined posture. When the telescopic end of the electric telescopic rod moves downward, it will drive the U-shaped plate to move synchronously, and the U-shaped plate drives the contact roller to move synchronously. When the contact roller moves downward, it rubs against the outer wall of the dust suction mechanism, and the contact roller starts to rotate due to the friction force. As the contact roller descends, the dust suction mechanism swings away from the laser instrument with the hinge shaft as the axis, and the bottom of the U-shaped plate resists the arc plate to move in an arc trajectory away from the center of the laser instrument. At this time, the arc plate opens the shielding of the laser instrument, and the laser instrument detects the wheel hub. After that, the arc plate and the dust suction mechanism are both reset by the torsion spring.

[0009] According to the above technical solution, the anti-misalignment device includes a plurality of vertical rods, the tops of the plurality of vertical rods are respectively fixedly installed at the bottom corners of the negative pressure fan, and a light shield is fixedly installed at the bottom of the vertical rods. When the negative pressure fan moves horizontally, the vertical rods are driven to move synchronously, and the vertical rods drive the light shield to move synchronously. The light shield always follows the laser instrument to move horizontally, that is, the light shield covers the laser instrument.

[0010] According to the above technical solution, a curved frame is fixedly installed on the left side of the light shield, an L-shaped baffle is slidably installed on the back of the inner wall of the device body through a spring, a transmission plate is hinged on the outer wall of the L-shaped baffle through a torsion spring, a telescopic column is fixedly installed inside the back of the device body, and a rubber push plate is fixedly installed on the front of the telescopic end of the telescopic column.

[0011] The L-shaped baffle is reset after movement by spring force, the top inclined surface of the L-shaped baffle is located on the movement trajectory of the left end of the arc frame, the top of the rubber push plate is hinged to the bottom of the transmission plate, and the rubber push plate is extended by the telescopic column to achieve the same calibration of the wheel hub. When the light shield moves horizontally, it drives the arc frame to move synchronously, and when the arc frame moves horizontally, it resists the inclined surface of the L-shaped baffle, and with the horizontal movement and pressure of the arc frame, the L-shaped baffle is prompted to slide downward along the inner wall of the device body, and the L-shaped baffle is lowered to block the external wheel hub of the device body, and then the L-shaped baffle is automatically reset by spring force, and when the L-shaped baffle slides downward, it drives the transmission plate to move synchronously, and the bottom of the transmission plate is limited by the telescopic column, prompting its own hinge shaft to start rotating. At this time, the bottom of the transmission plate pushes the rubber push plate forward with the hinge shaft as the axis, and the rubber push plate pulls the telescopic end of the telescopic column to extend.

[0012] According to the above technical solution, the anti-tilt device includes an L-shaped plate, the bottom of one front end of the L-shaped plate is fixedly installed at the top edge of the arc frame, a friction wheel is rotatably installed on the top of one back end of the L-shaped plate, the outer wall of the friction wheel is in contact with the back of the inner wall of the device body, a rotating rod is fixedly installed on the bottom of the friction wheel, and the outer wall of the reciprocating spiral groove of the rotating rod passes through and an L-shaped flat plate is movably installed.

[0013] According to the above technical solution, the bottom end of the rotating rod is movable and passes through the interior of the L-shaped plate, and a non-self-locking reciprocating spiral groove is opened on the outer wall of the rotating rod. The outer wall of the left end of the L-shaped plate is slidably connected to the inner wall of the arc frame, and the L-shaped plate is equipped with a built-in sensor. When the arc frame moves horizontally, it drives the L-shaped plate to move synchronously. The L-shaped plate drives the friction wheel to rub along the inner wall of the device body and starts to rotate. When the friction wheel rotates, it drives the rotating rod to rotate. When the rotating rod rotates, the reciprocating spiral groove on its own outer wall drives the L-shaped plate to slide downward along the inner wall of the arc frame and reset, and this is repeated repeatedly. When the L-shaped plate moves downward, the top of the hub transported by the top of the feeding mechanism is limited.

[0014] The cam is an L-shaped plate that is pivotally mounted on the bottom of the frame and has a spring that pushes the frame to move horizontally along the top of the frame.

[0015] The present invention provides a laser measuring instrument for detecting the flatness of the wheel hub end face. It has the following beneficial effects: (1) The present invention cooperates with an electric slide rail, an electric telescopic rod, a laser instrument, a negative pressure fan, a dust suction mechanism, a U-shaped plate, a resistance roller and an arc plate. The electric telescopic rod and the electric slide rail enable the laser instrument to detect the flatness of the wheel hub at a closer distance, so that the detection operation is standardized and reasonable, and data aggregation is achieved for subsequent review while eliminating the substandard parts; the swing absorption of the dust suction mechanism ensures the cleanliness of the wheel hub, prevents particles and dust from adhering to the top surface of the wheel hub, resulting in an increase in the surface roughness of the wheel hub, reduces the interference of the laser instrument when performing laser scanning on the surface of the wheel hub, ensures the clarity of its stripes and the measurement accuracy, and the arc plate is shielded and protected when the laser instrument is not in use to prevent foreign objects from adhering to and blurring the mirror surface.

[0016] (2) The present invention sets an anti-misalignment device, and cooperates with a negative pressure fan, a vertical rod, a light shield, a curved frame, an L-shaped baffle, a transmission plate, a telescopic column and a rubber push plate. Through the cover of the light shield, the laser instrument is prompted to always maintain a dark light environment when inspecting the end face of the wheel hub, thereby preventing external light sources from reducing the clarity of the laser endpoint emitted by the laser instrument and avoiding errors in the detection data; the L-shaped baffle is lowered and reset to enable the wheel hub to achieve indirect and orderly conveying detection, thereby preventing the laser instrument from missing detection due to too dense a wheel hub, and the rubber push plate pushes the wheel hub at the top of the feeding mechanism once, thereby ensuring that the wheel hub to be inspected is on the same horizontal line, and ensuring that the detection process is in a unified standard.

[0017] (3) The present invention sets an anti-tilt device, and cooperates with an arc frame, an L-shaped plate, a friction wheel, a rotating rod, an L-shaped flat plate, a through plate, a vertical plate, a circular telescopic frame and a round wheel. By limiting the downward pressure of the L-shaped flat plate, the bottom plane of the L-shaped flat plate can straighten the wheel hub that is tilted due to the attachment of foreign objects, thereby ensuring that the wheel hub is in a horizontal state when being inspected by a laser instrument, thereby avoiding errors in the end face inspection data; the circular wheel contacts the outer wall of the wheel hub, and the built-in spring of the circular telescopic frame relieves the impact of the wheel hub, thereby avoiding large collisions between the circular wheel and the wheel hub, and the circular wheel limits the wheel hub in opposite directions, thereby avoiding the push of the rubber push plate to cause the wheel hub to slide at different distances on the top of the feeding mechanism, thereby further optimizing the uniformity and accuracy of the wheel hub end face inspection. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of the present invention as a whole; Figure 2 It is a cross-sectional schematic diagram of the present invention as a whole; Figure 3 It is a schematic diagram of the peripheral structure of the electric slide rail of the present invention; Figure 4 It is a bottom perspective schematic diagram of the peripheral structure of the electric slide rail of the present invention; Figure 5 This is a schematic cross-sectional view of the bottom perspective of the peripheral structure of the electric slide rail of the present invention; Figure 6 This is a schematic diagram of the anti-displacement device of the present invention; Figure 7 This is an enlarged schematic diagram of the overall anti-displacement device of the present invention; Figure 8 This is a schematic diagram of the anti-tilting device of the present invention; Figure 9 This is a schematic cross-sectional view of the back perspective of the anti-tilting device of the present invention.

[0019] In the figure: 1, device main body; 2, intelligent instrument; 3, feeding mechanism; 4, material returning mechanism; 5, driver; 6, pushing mechanism; 7, electric slide rail; 8, electric telescopic rod; 9, laser instrument; 10, negative pressure fan; 11, dust collection mechanism; 12, U-shaped plate; 13, abutting roller; 14, arc-shaped plate; 15, anti-displacement device; 151, vertical rod; 152, light-shielding cover; 153, arc-shaped frame; 154, L-shaped baffle; 155, transmission plate; 156, telescopic column; 157, rubber push plate; 16, anti-tilting device; 161, L-shaped plate; 162, friction wheel; 163, rotating rod; 164, L-shaped flat plate; 165, through plate; 166, vertical plate; 167, return-shaped telescopic frame; 168, round wheel. Specific embodiments

[0020] 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 the embodiments.

[0021] Please refer to Figures 1-9 , one embodiment of the present invention is: a laser measuring instrument for detecting the flatness of the hub end face, including a device main body 1, an intelligent instrument 2 is arranged on the front of the device main body 1, a feeding mechanism 3 is arranged on the back inside the device main body 1, a material returning mechanism 4 is arranged on the front inner wall of the device main body 1, a driver 5 is arranged on the back of the device main body 1, a pushing mechanism 6 is arranged on the top of the driver 5, an electric slide rail 7 is fixedly installed on the top inner wall of the device main body 1, an electric telescopic rod 8 is slidably installed inside the electric slide rail 7, a laser instrument 9 is fixedly installed at the telescopic end of the electric telescopic rod 8, a negative pressure fan 10 is fixedly installed through and on the outer wall of the electric telescopic rod 8, two dust collection mechanisms 11 are symmetrically and hinged at the bottom of the negative pressure fan 10, an anti-displacement device 15 for ensuring the regular transportation of the hub is arranged outside the dust collection mechanism 11, an anti-tilting device 16 for preventing the hub from tilting is arranged below the anti-displacement device 15, a U-shaped plate 12 is fixedly installed through and on the outer wall of the telescopic end of the electric telescopic rod 8, an abutting roller 13 is rotatably installed inside the U-shaped groove of the U-shaped plate 12, and two arc-shaped plates 14 are symmetrically and hinged at the bottom of the negative pressure fan 10 through torsion springs.

[0022] According to the above technical solution, the intelligent instrument 2 collects and summarizes the measurement data of the wheel hub. The feeding mechanism 3 conveys and inspects the wheel hub in sequence. A chute is provided at the top of the feeding mechanism 3. The return material mechanism 4 is used to return the wheel hub that fails the inspection. The telescopic end of the pushing mechanism 6 is located inside the device main body 1, and the pushing mechanism 6 pushes the wheel hub on the top of the feeding mechanism 3 to the top of the return material mechanism 4.

[0023] According to the above technical solution, the laser instrument 9 is connected to the intelligent instrument 2, and the laser instrument 9 transmits the detection data to the intelligent instrument 2. A torsion spring is provided between the top of the dust suction mechanism 11 and the negative pressure fan 10, and the torsion spring provides a force for the dust suction mechanism 11 to reset after movement. U-shaped grooves are provided at both ends of the top of the U-shaped plate 12, and the outer wall of the contact roller 13 is in contact with the outer wall of the dust suction mechanism 11. The arc-shaped plate 14 is located below the laser instrument 9, and the concave surface of the outer wall of the arc-shaped plate 14 is in contact with the bottom of the U-shaped plate 12.

[0024] The electric telescopic rod 8 and the electric slide rail 7 are used to make the laser instrument 9 detect the flatness of the wheel hub at a closer distance, making the detection operation standardized and reasonable. At the same time, while realizing data summary for subsequent review, the unqualified parts are eliminated. Through the swinging absorption of the dust suction mechanism 11, the cleanliness of the wheel hub is guaranteed, preventing particulate matter and dust from adhering to the top surface of the wheel hub, resulting in an increase in the surface roughness of the wheel hub and reducing the interference when the laser instrument 9 performs laser scanning on the surface of the wheel hub, ensuring the clarity of its stripes and the measurement accuracy. Moreover, the arc-shaped plate 14 provides shielding protection when the laser instrument 9 is not in use, preventing foreign objects from adhering and blurring the mirror surface.

[0025] During use, the feeding mechanism 3 detects and conveys the wheel hubs. During the conveyance of the wheel hubs, the electric telescopic rod 8 is activated. The telescopic end of the electric telescopic rod 8 drives the laser instrument 9 to move downward and then reset. After that, the electric slide rail 7 is activated. The electric slide rail 7 drives the electric telescopic rod 8 to slide leftward and then reset within itself. The electric telescopic rod 8 drives the laser instrument 9 to perform a horizontal movement, that is, the laser instrument 9 descends close to the wheel hub to emit laser light, which shines on one end of the top of the wheel hub. Then, the flatness of the wheel hub is measured by extending the light spot horizontally. The measurement data is reported to the intelligent instrument 2. The qualified wheel hubs continue to be conveyed, and the unqualified wheel hubs are pushed by the pusher mechanism 6 and conveyed in the opposite direction by the return material mechanism 4; the negative pressure fan 10 is activated before the electric telescopic rod 8. The negative pressure fan 10 transmits suction through the dust suction mechanism 11, and the dust suction mechanism 11 sucks the top of the slowly conveyed wheel hub in an inclined posture. When the telescopic end of the electric telescopic rod 8 moves downward, it will drive the U-shaped plate 12 to move synchronously. The U-shaped plate 12 drives the contact roller 13 to move synchronously. When the contact roller 13 moves downward, it contacts and rubs against the outer wall of the dust suction mechanism 11. The contact roller 13 starts to rotate by friction. As the contact roller 13 descends and contacts the dust suction mechanism 11, it swings away from the laser instrument 9 with the hinge axis as the center, and the bottom of the U-shaped plate 12 contacts the arc plate 14 and moves in an arc trajectory away from the center of the laser instrument 9. At this time, the arc plate 14 opens to block the laser instrument 9, and the laser instrument 9 detects the wheel hub. Then, both the arc plate 14 and the dust suction mechanism 11 are reset by the torsion spring.

[0026] According to the above embodiment, the electric telescopic rod 8 and the electric slide rail 7 are used to make the laser instrument 9 detect the flatness of the wheel hub at a closer distance, making the detection operation standard and reasonable. At the same time, data aggregation is achieved for subsequent review, and unqualified parts are removed; through the swinging absorption of the dust suction mechanism 11, the cleanliness of the wheel hub is guaranteed, preventing particulate matter and dust from adhering to the surface of the top of the wheel hub, resulting in an increase in the surface roughness of the wheel hub and reducing the interference during the laser scanning of the surface of the wheel hub by the laser instrument 9, ensuring the clarity of its stripes and the measurement accuracy. Moreover, the arc plate 14 provides shielding protection when the laser instrument 9 is not in use, preventing foreign objects from adhering and blurring the mirror surface.

[0027] Please refer to Figures 1-9 , on the basis of the above embodiment, in another embodiment of the present invention, an anti-misalignment device 15 is further included; The anti-misalignment device 15 includes a plurality of vertical rods 151. The tops of the plurality of vertical rods 151 are respectively fixedly installed at the bottom corners of the negative pressure fan 10, and a light-shielding cover 152 is fixedly installed at the bottom of the vertical rods 151.

[0028] An arc frame 153 is fixedly installed on the left side of the light shield 152, an L-shaped baffle 154 is slidably installed on the back of the inner wall of the device body 1 through a spring, and a transmission plate 155 is hinged on the outer wall of the L-shaped baffle 154 through a torsion spring. A telescopic column 156 is fixedly installed inside the back of the device body 1, and a rubber push plate 157 is fixedly installed on the front of the telescopic end of the telescopic column 156.

[0029] The L-shaped baffle 154 is reset after movement by spring force. The top inclined surface of the L-shaped baffle 154 is located on the movement trajectory of the left end of the arc frame 153. The top of the rubber push plate 157 is hinged to the bottom of the transmission plate 155. The rubber push plate 157 is extended by the telescopic column 156 to achieve the same calibration of the wheel hub.

[0030] By covering with the light shield 152, the laser instrument 9 is urged to always maintain a dark light environment when inspecting the end face of the wheel hub, so as to prevent external light sources from reducing the clarity of the laser endpoint emitted by the laser instrument 9 and to avoid errors in the inspection data; by the L-shaped baffle plate 154 being lowered and reset, the wheel hub is prompted to achieve indirect and orderly conveying inspection, so as to prevent the laser instrument 9 from missing inspections due to too dense wheel hubs, and the rubber push plate 157 pushes the wheel hub at the top of the feeding mechanism 3 once, so as to ensure that the required inspection positions of the wheel hubs are on the same horizontal line and that the inspection process is in a unified standard.

[0031] When in use, the negative pressure fan 10 drives the vertical rod 151 to move synchronously when it moves horizontally, and the vertical rod 151 drives the light shield 152 to move synchronously, and the light shield 152 always moves horizontally with the laser instrument 9, that is, the light shield 152 covers the laser instrument 9; when the light shield 152 moves horizontally, it drives the arc frame 153 to move synchronously, and when the arc frame 153 moves horizontally, it contacts the inclined surface of the L-shaped baffle 154, and with the horizontal movement and pressure of the arc frame 153, the L-shaped baffle 154 is pushed along the main body of the device. 1, the inner wall of the device body 1 slides downward, and the L-shaped baffle 154 is lowered to cover the outer hub of the device body 1, and then the L-shaped baffle 154 is automatically reset by the spring force. When the L-shaped baffle 154 slides downward, it drives the transmission plate 155 to move synchronously. The bottom of the transmission plate 155 is limited by the telescopic column 156, which prompts its own hinge axis to start rotating. At this time, the bottom of the transmission plate 155 pushes the rubber push plate 157 to move forward with the hinge axis as the axis, and the rubber push plate 157 pulls the telescopic end of the telescopic column 156 to extend.

[0032] According to the above embodiments, through the shrouding of the light-shielding cover 152, when the laser instrument 9 detects the end face of the wheel hub, a dark environment is always maintained, avoiding the external light source from reducing the clarity of the laser endpoints emitted by the laser instrument 9 and avoiding errors in the detection data; through the downward reset of the L-shaped baffle 154, the wheel hubs are indirectly and orderly transported and detected, avoiding the phenomenon of missed detection by the laser instrument 9 due to overly dense wheel hubs, and the rubber push plate 157 pushes the wheel hubs on the top of the feeding mechanism 3 once, ensuring that the positions of the wheel hubs to be detected are on the same horizontal line and ensuring that the detection process is under a unified standard.

[0033] Please refer to Figures 1-9 , on the basis of the above embodiments, in another embodiment of the present invention, an anti-tilting device 16 is further included; The anti-tilting device 16 includes an L-shaped plate 161. The bottom of one end of the front surface of the L-shaped plate 161 is fixedly installed at the top edge of the arc-shaped frame 153. The top of one end of the back surface of the L-shaped plate 161 is rotatably installed with a friction wheel 162. The outer wall of the friction wheel 162 contacts the back surface of the inner wall of the device main body 1. The bottom of the friction wheel 162 is fixedly installed with a rotating rod 163. The outer wall of the reciprocating spiral groove of the rotating rod 163 penetrates through and is movably installed with an L-shaped flat plate 164.

[0034] The bottom end of the rotating rod 163 movably penetrates through the inside of the L-shaped plate 161, and a non-self-locking reciprocating spiral groove is provided on the outer wall of the rotating rod 163. The outer wall of the left end of the L-shaped flat plate 164 is slidably connected to the inner wall of the arc-shaped frame 153, and a sensor is built in the L-shaped flat plate 164.

[0035] A through plate 165 is fixedly installed at the bottom of one side of the front surface of the L-shaped flat plate 164. The bottom of the through plate 165 penetrates through and is slidably installed with a vertical plate 166. The bottom of the vertical plate 166 is slidably installed in the chute of the feeding mechanism 3 through a pulley. After the through plate 165 penetrates into the vertical plate 166, the force of pushing the vertical plate 166 is enhanced. A return-shaped telescopic frame 167 is fixed on the side of the vertical plate 166 close to the rotating rod 163. A horizontal groove is provided at the telescopic end of the return-shaped telescopic frame 167, and a spring is built in the return-shaped telescopic frame 167. A round wheel 168 is rotatably installed in the horizontal groove of the return-shaped telescopic frame 167.

[0036] Through the downward limit of the L-shaped flat plate 164, the bottom plane of the L-shaped flat plate 164 corrects the tilted wheel hub due to foreign object attachment, ensuring that the wheel hub is in a horizontal state when being detected by the laser instrument 9 and avoiding errors in the end face detection data; through the contact of the round wheel 168 with the outer wall of the wheel hub, and the spring built in the return-shaped telescopic frame 167 unloads the impact on the wheel hub, avoiding large collisions between the round wheel 168 and the wheel hub, and the round wheel 168 limits the wheel hub in the opposite direction, avoiding different sliding distances of the wheel hub on the top of the feeding mechanism 3 due to the push of the rubber push plate 157, and further optimizing the unity and accuracy of the wheel hub end face detection.

[0037] During use, when the arc-shaped frame 153 moves horizontally, it drives the L-shaped plate 161 to move synchronously. The L-shaped plate 161 drives the friction wheel 162 to rub along the inner wall of the device main body 1 and start to rotate. When the friction wheel 162 rotates, it drives the rotating rod 163 to rotate. When the rotating rod 163 rotates, it drives the L-shaped flat plate 164 to slide downward and reset along the inner wall of the arc-shaped frame 153 through the reciprocating spiral groove on its outer wall. This process repeats. When the L-shaped flat plate 164 moves downward, it limits the top of the hub conveyed by the top of the feeding mechanism 3; when the L-shaped flat plate 164 moves downward and horizontally, the L-shaped flat plate 164 presses the penetrating plate 165 into the vertical plate 166, and the L-shaped flat plate 164 pushes the penetrating plate 165 to move horizontally. At this time, the penetrating plate 165 pushes the vertical plate 166 to slide horizontally along the top chute of the feeding mechanism 3. The vertical plate 166 drives the loop-shaped telescopic frame 167 to move synchronously, and the loop-shaped telescopic frame 167 drives the round wheel 168 to move horizontally. When the rubber push plate 157 pushes the hub, the loop-shaped telescopic frame 167 and the round wheel 168 intercept on the opposite side.

[0038] According to the above embodiments, through the downward limit of the L-shaped flat plate 164, the bottom plane of the L-shaped flat plate 164 corrects the hub that is tilted due to foreign object adhesion, ensuring that the hub is in a horizontal state when being detected by the laser instrument 9, and avoiding errors in the end face detection data; by the round wheel 168 contacting the outer wall of the hub, and the spring inside the loop-shaped telescopic frame 167 relieves the impact on the hub, avoiding large collisions between the round wheel 168 and the hub, and the round wheel 168 performs opposite-side limiting on the hub, avoiding inconsistent sliding distances of the hub on the top of the feeding mechanism 3 due to the push of the rubber push plate 157, and further optimizing the uniformity and accuracy of the hub end face detection.

[0039] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent replacements or changes, and all should be covered within the protection scope of the present invention.

Claims

1. A laser measuring instrument for detecting the flatness of the end face of a wheel hub, comprising a device main body (1), characterized in that: On the front of the device main body (1), there is an intelligent instrument (2). Inside the back of the device main body (1), there is a feeding mechanism (3). On the front inner wall of the device main body (1), there is a material returning mechanism (4). On the back of the device main body (1), there is a driver (5). On the top of the driver (5), there is a material pushing mechanism (6). On the top inner wall of the device main body (1), there is an electric slide rail (7) fixedly installed. Inside the electric slide rail (7), there is an electric telescopic rod (8) slidably installed. At the telescopic end of the electric telescopic rod (8), there is a laser instrument (9) fixedly installed. The outer wall of the electric telescopic rod (8) penetrates and is fixedly installed with a negative pressure fan (10). At the bottom of the negative pressure fan (10), there are two dust suction mechanisms (11) symmetrically and hingedly arranged. Around the dust suction mechanism (11), there is an anti-displacement device (15) to ensure regular conveying of the hub. Below the anti-displacement device (15), there is an anti-tilt device (16) to prevent the hub from tilting. The outer wall of the telescopic end of the electric telescopic rod (8) penetrates and is fixedly installed with a U-shaped plate (12). Inside the U-shaped groove of the U-shaped plate (12), there is a contact roller (13) rotatably installed. At the bottom of the negative pressure fan (10), there are two arc-shaped plates (14) symmetrically and hingedly arranged through torsion springs.

2. The laser measuring instrument for detecting the flatness of the hub end face according to claim 1, characterized in that: The intelligent instrument (2) collects and summarizes the measurement data of the hub. The feeding mechanism (3) sequentially conveys and inspects the hubs, and there is a chute on the top of the feeding mechanism (3). The material returning mechanism (4) is used to return the hubs that do not meet the inspection standards. The telescopic end of the material pushing mechanism (6) is located inside the device main body (1). The material pushing mechanism (6) pushes the hub on the top of the feeding mechanism (3) to the top of the material returning mechanism (4).

3. The laser measuring instrument for detecting the flatness of the hub end face according to claim 2, wherein: The laser instrument (9) is connected to the intelligent instrument (2), and the laser instrument (9) transmits the detection data to the intelligent instrument (2). There is a torsion spring between the top of the dust suction mechanism (11) and the negative pressure fan (10), and the torsion spring provides the force for the dust suction mechanism (11) to reset after movement. At both ends of the top of the U-shaped plate (12), there are U-shaped grooves. The outer wall of the contact roller (13) contacts the outer wall of the dust suction mechanism (11). The arc-shaped plate (14) is located below the laser instrument (9), and the concave surface of the outer wall of the arc-shaped plate (14) contacts the bottom of the U-shaped plate (12).

4. A laser measuring instrument for detecting the flatness of the hub end face according to claim 3, characterized in that: The anti-displacement device (15) includes several vertical rods (151). The tops of the several vertical rods (151) are respectively fixedly installed at the bottom corners of the negative pressure fan (10). The bottom of the vertical rod (151) is fixedly installed with a light-shielding cover (152).

5. A laser measuring instrument for detecting the flatness of the hub end face according to claim 4, characterized in that: On the left side of the light-shielding cover (152), there is an arc-shaped frame (153) fixedly installed. On the back inner wall of the device main body (1), there is an L-shaped baffle (154) slidably installed through a spring. On the outer wall of the L-shaped baffle (154), there is a transmission plate (155) hingedly installed through a torsion spring. Inside the back of the device main body (1), there is a telescopic column (156) fixedly installed. On the front of the telescopic end of the telescopic column (156), there is a rubber push plate (157) fixedly installed.

6. A laser measuring instrument for detecting the flatness of a hub end face according to claim 5, characterized in that: The L-shaped baffle (154) is reset after movement by spring elasticity. The top inclined surface of the L-shaped baffle (154) is located on the movement track at the left end of the arc-shaped frame (153). The top of the rubber push plate (157) is hinged to the bottom of the transmission plate (155), and the rubber push plate (157) extends through the telescopic column (156) to achieve the same alignment of the hub.

7. A laser measuring instrument for detecting the flatness of the hub end face according to claim 6, characterized in that: The anti-tilting device (16) includes an L-shaped plate (161). The bottom of one end on the front surface of the L-shaped plate (161) is fixedly installed at the top edge of the arc-shaped frame (153). A friction wheel (162) is rotatably installed at the top of one end on the back surface of the L-shaped plate (161). The outer wall of the friction wheel (162) is in contact with the inner wall of the back surface of the device body (1). A rotating rod (163) is fixedly installed at the bottom of the friction wheel (162). The outer wall of the rotating rod (163) penetrates through and is movably installed with an L-shaped flat plate (164) in a reciprocating spiral groove.

8. A laser measuring instrument for detecting the flatness of the hub end face according to claim 7, characterized in that: The bottom end of the rotating rod (163) movably penetrates through the inside of the L-shaped plate (161), and a non-self-locking reciprocating spiral groove is formed on the outer wall of the rotating rod (163). The outer wall of the left end of the L-shaped flat plate (164) is slidably connected to the inner wall of the arc-shaped frame (153), and a sensor is built in the L-shaped flat plate (164).

9. A laser measuring instrument for detecting the flatness of a wheel hub end face according to claim 8, characterized in that: A through plate (165) is fixedly installed at the bottom of one side on the front surface of the L-shaped flat plate (164). The bottom of the through plate (165) penetrates through and is slidably installed with a vertical plate (166). The bottom of the vertical plate (166) is slidably installed in the chute of the feeding mechanism (3) through a pulley. After the through plate (165) penetrates into the vertical plate (166), the force for pushing the vertical plate (166) is enhanced. A return-shaped telescopic frame (167) is fixed on one side of the vertical plate (166) close to the rotating rod (163). A horizontal groove is formed at the telescopic end of the return-shaped telescopic frame (167), and a spring is built in the return-shaped telescopic frame (167). A round wheel (168) is rotatably installed in the horizontal groove of the return-shaped telescopic frame (167).

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