Automobile shaft lever surface detection device

Abstract

The invention belongs to the technical field of shaft measurement, and particularly relates to an automobile shaft rod surface detection device which comprises a base and a controller arranged above the base, a polishing mechanism is arranged above the base, a polishing table is arranged below the base, and the polishing table is provided with a lead screw assembly used for driving the base to move. A clamping mechanism used for clamping a shaft rod is installed on the end face of the grinding table, the clamping mechanism can drive the shaft rod to rotate, the grinding device further comprises a side plate, the side plate is arranged above the base, the base and the side plate are jointly provided with a position adjusting mechanism, and the controller is fixedly connected with the side wall of the side plate. By means of the intelligent sensing structure, the position of the grinding mechanism can be automatically adjusted in the grinding process, stable and appropriate grinding pressure on the shaft rod is maintained, meanwhile, whether the grinding efficiency of the grinding mechanism meets use or not can be judged based on the contour of the shaft rod, cooling of the grinding position can be assisted, and stable grinding work is facilitated.

Description

Technical Field

[0001] The invention belongs to the technical field of shaft measurement, and in particular relates to a surface detection device for an automobile shaft rod. Background Art

[0002] Automotive shafts are crucial in automotive transmission systems. With the development of the automotive industry, the quality requirements for shafts are constantly increasing. Precise inspection is required during shaft grinding to ensure surface quality and dimensional accuracy. Advanced intelligent sensing systems can quickly and accurately evaluate the state of shafts, ensure the stability of shaft grinding quality, and improve shaft processing quality.

[0003] At present, when grinding the surface of an automobile shaft, it is necessary to detect the size of the shaft surface through an intelligent sensing system. According to the detected size, the grinding equipment can be adjusted to control the grinding degree, ensure a good grinding effect, and assist in improving the grinding accuracy, such as the automobile shaft surface grinding detection device disclosed in patent announcement number CN106871830A; The shaft is first dimensionally inspected by intelligent sensing equipment before grinding. Although the installation position of the grinding equipment can be determined, due to the presence of uneven areas on the shaft surface (such as cutting slag, oxide scale, etc.), the grinding pressure cannot be flexibly adjusted according to the progress of grinding during the grinding process. During the grinding process, the grinding pressure may be too high or too low. If the pressure is too high, the grinding wheel or shaft surface will be excessively worn, and the excessive contact force will affect the grinding stability. If the pressure is too low, the grinding efficiency of the shaft will be affected. Summary of the invention

[0004] The object of the present invention is to provide a surface detection device for an automobile shaft rod in view of the above-mentioned problems.

[0005] To achieve the above object, the present invention adopts the following technical solutions: an automobile shaft rod surface detection device, comprising a base and a controller arranged above the base, a grinding mechanism is arranged above the base, a grinding table is arranged below the base, and the grinding table is provided with a screw assembly for driving the base to move, a clamping mechanism for clamping the shaft rod is installed on the end surface of the grinding table, and the clamping mechanism is used to drive the shaft rod to rotate, and also includes: The side plate is arranged above the base, and the base and the side plate are jointly equipped with a position adjustment mechanism, and the controller is fixedly connected to the side wall of the side plate; An insulating block is installed on the side wall of the side plate, a detection cavity is opened inside the insulating block, and a T-shaped rod is slidably connected to the cavity wall of the detection cavity away from the side plate, a strip block is installed at one end of the T-shaped rod located outside the detection cavity, and a detection roller is rotatably connected to the side wall of the strip block; A thickness detection unit is installed inside the detection cavity, and a pressure mechanism corresponding to the position of the grinding mechanism is installed on the end surface of the base; A contour detection unit, arranged inside the detection cavity; The dust suction and cooling unit is arranged on the end surface of the base, the side wall of the side plate is installed with a contour quantification mechanism, the contour detection unit is electrically connected to the dust suction and cooling unit through a controller, and the contour quantification mechanism is connected to the air outlet end of the dust suction and cooling unit.

[0006] Preferably, the position adjustment mechanism includes a sliding seat fixedly mounted on the bottom of the side plate, a sliding block is fixedly mounted on the bottom of the sliding seat, and a sliding groove matching the sliding block is opened on the end surface of the base, and fixed plates are fixedly mounted on the end surfaces of the base located on both sides of the sliding groove, the side walls of the two fixed plates are rotatably connected to the same adjusting screw, and the rod wall of the adjusting screw is threadedly connected to the side wall of the sliding seat.

[0007] Preferably, the thickness detection unit includes a magnetic resistance piston plate slidably arranged inside the detection cavity, and the magnetic resistance piston plate is arranged between the T-shaped rod and the side plate, a permanent magnet is fixedly installed on the side wall of the magnetic resistance piston plate close to the side plate, an electromagnetic plate is fixedly installed on the cavity wall of the detection cavity away from the T-shaped rod, and the electromagnetic plate is electrically connected to the controller, a reflective block is fixedly installed on the side wall of the magnetic resistance piston plate away from the side plate, a first infrared ranging probe corresponding to the position of the reflective block is fixedly installed on the end of the insulating block away from the side plate, and the detection end of the first infrared ranging probe is arranged inside the detection cavity, the electromagnetic plate and the first infrared ranging probe are both electrically connected to the controller, and a spring is fixedly provided between the T-shaped rod and the cavity wall of the detection cavity.

[0008] Preferably, the pressure mechanism includes a support platform fixedly mounted on the end surface of the base, a group of electric hydraulic cylinders are fixedly plugged into the side wall of the support platform, and the telescopic ends of the electric hydraulic cylinders are commonly fixedly connected to the same L-shaped plate, the L-shaped plate is slidably connected to the top of the support platform, a mounting plate is fixedly mounted on the top of the L-shaped plate, and the grinding mechanism is mounted on the side wall of the mounting plate close to the side plate, and the controller controls the extension distance of the telescopic end of the electric hydraulic cylinder according to the strength of the electrical signal output by the first infrared ranging probe.

[0009] Preferably, the contour detection unit includes an insulating strip fixedly mounted on the side wall of the T-shaped rod, and a resistance rod is fixedly mounted on the side wall of the insulating strip away from the side plate, the cavity wall of the detection cavity is fixedly mounted with an insulating plate, and the side wall of the insulating plate is fixedly plugged with a conductive ring coaxial with the resistance rod, and the conductive ring is in sliding contact with the rod wall of the resistance rod.

[0010] Preferably, the dust suction and cooling unit includes a dust collecting chamber opened inside the base, and the upper chamber wall of the dust collecting chamber is open, the end face of the base is installed with a cover plate matching the opening of the dust collecting chamber, and the end face of the cover plate is provided with a plurality of dust suction holes, an air pump is fixedly installed at a position on the end face of the base located on one side of the cover plate, the suction end of the air pump is connected with the interior of the dust collecting chamber, a dust filter is installed inside the dust collecting chamber at the position of the suction end of the air pump, and the air pump is electrically connected to the conductive ring and the resistance rod through a controller.

[0011] Preferably, the contour quantitative mechanism includes a hollow block fixedly mounted on the side wall of the side plate, and a quantitative piston plate is slidably provided inside the hollow block, and the same elastic support component is commonly installed between the top of the quantitative piston plate and the inner top of the hollow block, the air outlet end of the air pump is fixedly connected to an air supply pipe, and the pipe wall of the air supply pipe and the bottom of the hollow block are commonly connected to a diversion pipe, a normally closed solenoid valve is installed inside the diversion pipe, and a normally open solenoid valve is installed on one side of the air outlet end of the air supply pipe, a back pressure hole is opened on the side wall of the hollow block above the quantitative piston plate, a start detection component is provided inside the hollow block, and the normally open solenoid valve and the normally closed solenoid valve are both electrically connected to the controller.

[0012] Preferably, the start detection component includes a support bar fixedly installed inside the hollow block, and the support bar is arranged below the quantitative piston plate, a pressure switch is installed on the top of the support bar, and the quantitative piston plate abuts against the moving contact of the pressure switch, an air venting pipe is fixedly installed on the inner wall of the hollow block below the quantitative piston plate, and an electric-controlled valve is installed inside the air venting pipe, a side wall of the hollow block is provided with air-permeable micropores connected to the air venting pipe, a second infrared ranging probe corresponding to the position of the reflective block is fixedly inserted on the side wall of the insulating block away from the side plate, and the detection end of the second infrared ranging probe is arranged in the detection cavity, and the controller controls the operation of the second infrared ranging probe according to the electrical signal output by the pressure switch.

[0013] Compared with the existing technology, the advantages of an automobile shaft surface detection device are: Through the mutual cooperation of the base, controller, grinding mechanism, grinding table, screw assembly, clamping mechanism, side plate, position adjustment mechanism, insulating block, detection chamber, T-bar, bar block, detection roller and thickness detection unit, and through the intelligent sensing structure, the maximum thickness of the wall of the automobile shaft rod can be quickly detected before the surface of the automobile shaft rod is polished, and in conjunction with the set pressure mechanism, the initial grinding position of the grinding mechanism can be automatically adjusted, so that the grinding mechanism applies a stable and appropriate grinding pressure to the shaft rod, and in the process of grinding, the position of the grinding mechanism can be adjusted in time through timed thickness measurement, so as to ensure the grinding efficiency, thereby avoiding excessive wear of the grinding wheel or the shaft rod due to excessive grinding pressure, and causing unstable grinding, and avoiding low grinding efficiency due to insufficient grinding pressure.

[0014] By setting up the dust suction and cooling unit, negative pressure suction can be applied to the grinding position during the grinding process, which can not only quickly absorb the dust generated by grinding, but also assist in cooling the grinding position, which is conducive to the stable progress of the grinding work.

[0015] By setting up a contour detection unit, in cooperation with the dust suction and cooling unit and the contour quantification mechanism, it is possible to estimate the time it takes for the grinding mechanism to complete the grinding work based on the contour of the shaft before grinding, and after the estimated time is over, determine whether the grinding process of the grinding mechanism meets the grinding efficiency requirements. In the event of low grinding efficiency, it can automatically remind personnel to take appropriate measures. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of an automobile shaft surface detection device provided by the present invention; Figure 2 It is a schematic diagram of the installation of a shaft rod of a vehicle shaft rod surface detection device provided by the present invention; Figure 3 It is a schematic diagram of the connection structure between a base and a grinding table of an automobile shaft surface detection device provided by the present invention; Figure 4 It is a schematic diagram of the partial internal structure of a base of an automobile shaft surface detection device provided by the present invention; Figure 5 It is a schematic diagram of the internal structure of an insulating block of an automobile shaft surface detection device provided by the present invention; Figure 6 The present invention provides a vehicle shaft surface detection device Figure 4 A magnified view of the structure of part A.

[0017] In the figure: 1 base, 2 controller, 3 grinding mechanism, 4 grinding table, 5 screw rod assembly, 6 clamping mechanism, 7 side plate, 8 position adjustment mechanism, 81 sliding seat, 82 slider, 83 slide groove, 84 fixed plate, 85 adjusting screw, 9 insulating block, 10 detection cavity, 11 T-shaped rod, 12 bar block, 13 detection roller, 14 thickness detection unit, 141 magnetic resistance piston plate, 142 permanent magnet, 143 electromagnetic plate, 144 reflective block, 145 first infrared ranging probe, 146 spring, 15 pressure mechanism, 151 support table, 152 electric hydraulic cylinder, 153 L-shaped plate, 154 mounting plate, 16 contour detection Unit, 161 insulating strip, 162 resistance rod, 163 insulating plate, 164 conductive ring, 17 dust suction and cooling unit, 171 dust collecting chamber, 172 cover plate, 173 dust suction hole, 174 air pump, 175 dust filter, 18 contour quantitative mechanism, 181 hollow block, 182 quantitative piston plate, 183 elastic support component, 184 air supply pipe, 185 shunt pipe, 186 normally closed solenoid valve, 187 normally open solenoid valve, 188 back pressure hole, 19 start detection component, 191 support strip, 192 pressure switch, 193 vent pipe, 194 electric control valve, 195 air permeable micropore, 196 second infrared ranging probe. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0019] like Figure 1-Figure 6As shown, a vehicle shaft surface detection device includes a base 1 and a controller 2 arranged above the base 1, a grinding mechanism 3 is arranged above the base 1, a grinding table 4 is arranged below the base 1, and the grinding table 4 is provided with a screw assembly 5 for driving the base 1 to move, the screw assembly 5 on the grinding table 4 includes a screw, a screw nut, a bearing, a motor and other components, the motor drives the screw to make the screw nut drive the base 1 to move, the end surface of the grinding table 4 is installed with a clamping mechanism 6 for clamping the shaft, and the clamping mechanism 6 can drive the shaft to rotate, the clamping mechanism 6 includes a three-jaw chuck, a support, a motor and other components, the three-jaw chuck can clamp and fix one end of the shaft, the support can support the other end of the shaft, and the motor can drive the shaft to rotate through the three-jaw chuck. The shaft rotates, which is an existing mature technology and will not be elaborated here. It also includes: a side plate 7, which is arranged above the base 1, and the base 1 and the side plate 7 are jointly equipped with a position adjustment mechanism 8, the controller 2 is fixedly connected to the side wall of the side plate 7, and the position adjustment mechanism 8 includes a sliding seat 81 fixedly installed at the bottom of the side plate 7, a slider 82 is fixedly installed at the bottom of the sliding seat 81, and a sliding groove 83 matching the slider 82 is opened on the end surface of the base 1, and fixed plates 84 are fixedly installed at positions on both sides of the sliding groove 83. The side walls of the two fixed plates 84 are rotatably connected with the same adjusting screw 85, and the rod wall of the adjusting screw 85 is threadedly connected to the side wall of the sliding seat 81. Rotating the adjusting screw 85 can drive the sliding seat 81 to move.

[0020] The insulating block 9 is installed on the side wall of the side plate 7, and a detection cavity 10 is opened inside the insulating block 9, and a T-shaped rod 11 is slidably connected to the cavity wall of the detection cavity 10 away from the side plate 7, and a strip block 12 is installed at one end of the T-shaped rod 11 outside the detection cavity 10, and a detection roller 13 is rotatably connected to the side wall of the strip block 12, and a thickness detection unit 14 is installed inside the detection cavity 10, and a pressure mechanism 15 corresponding to the position of the grinding mechanism 3 is installed on the end surface of the base 1, and the thickness detection unit 14 includes a magnetic resistance piston plate 141 slidably arranged inside the detection cavity 10, and the magnetic resistance piston plate 141 is arranged between the T-shaped rod 11 and the side plate 7, and a permanent magnet 142 is fixedly installed on the side wall of the magnetic resistance piston plate 141 close to the side plate 7, and the detection cavity 10 is away from An electromagnetic plate 143 is fixedly installed on the cavity wall on one side of the T-shaped rod 11, and the electromagnetic plate 143 is electrically connected to the controller 2. A reflective block 144 is fixedly installed on the side wall of the magnetic resistance piston plate 141 away from the side plate 7. A first infrared ranging probe 145 corresponding to the position of the reflective block 144 is fixedly installed on the end of the insulating block 9 away from the side plate 7, and the detection end of the first infrared ranging probe 145 is arranged inside the detection cavity 10. The electromagnetic plate 143 and the first infrared ranging probe 145 are both electrically connected to the controller 2. A spring 146 is fixedly provided between the T-shaped rod 11 and the cavity wall of the detection cavity 10. The first infrared ranging probe 145 can detect the position of the magnetic resistance piston plate 141 and output an electrical signal of corresponding strength to the controller 2 according to the distance.

[0021] The pressure-applying mechanism 15 includes a support platform 151 fixedly mounted on the end face of the base 1, a group of electric hydraulic cylinders 152 are fixedly plugged into the side wall of the support platform 151, and the telescopic ends of each electric hydraulic cylinder 152 are fixedly connected to the same L-shaped plate 153, the L-shaped plate 153 is slidably connected to the top of the support platform 151, a mounting plate 154 is fixedly mounted on the top of the L-shaped plate 153, and the grinding mechanism 3 is mounted on the side wall of the mounting plate 154 close to the side plate 7. The controller 2 controls the extension distance of the telescopic end of the electric hydraulic cylinder 152 according to the strength of the electrical signal output by the first infrared ranging probe 145. The controller 2 can control the flow and pressure of the hydraulic oil of the electric hydraulic cylinder 152 by adjusting the opening of the proportional control valve and other components in the hydraulic system, thereby realizing the regulation of the extension distance of the telescopic end of the electric hydraulic cylinder 152.

[0022] The contour detection unit 16 is arranged inside the detection cavity 10, and the contour detection unit 16 includes an insulating strip 161 fixedly installed on the side wall of the T-shaped rod 11, and a resistance rod 162 is fixedly installed on the side wall of the insulating strip 161 away from the side plate 7, and an insulating plate 163 is fixedly installed on the cavity wall of the detection cavity 10, and a conductive ring 164 coaxial with the resistance rod 162 is fixedly inserted on the side wall of the insulating plate 163, and the conductive ring 164 is in sliding contact with the rod wall of the resistance rod 162. The contact position of the conductive ring 164 and the resistance rod 162 changes, which can change the connection loop resistance of the conductive ring 164 and the resistance rod 162.

[0023] The dust suction and cooling unit 17 is arranged on the end surface of the base 1, and the dust suction and cooling unit 17 includes a dust collecting chamber 171 opened inside the base 1, and the upper chamber wall of the dust collecting chamber 171 is open, and the end surface of the base 1 is installed with a cover plate 172 matching the opening of the dust collecting chamber 171, and the end surface of the cover plate 172 is provided with a plurality of dust suction holes 173, and an air pump 174 is fixedly installed at a position on the end surface of the base 1 located on one side of the cover plate 172, and the suction end of the air pump 174 is connected to the interior of the dust collecting chamber 171, and a dust filter 175 is installed at the position of the suction end of the air pump 174 inside the dust collecting chamber 171, and the air pump 174 is electrically connected to the conductive ring 164 and the resistance rod 162 through the controller 2, and the cover plate 172 can be disassembled to facilitate the dust inside the dust collecting chamber 171 to be transferred out, and the dust filter 175 can intercept the dust.

[0024] The side wall of the side plate 7 is installed with a contour quantitative mechanism 18, the contour detection unit 16 is electrically connected to the dust suction and cooling unit 17 through the controller 2, the contour quantitative mechanism 18 is connected to the air outlet of the dust suction and cooling unit 17, the contour quantitative mechanism 18 includes a hollow block 181 fixedly installed on the side wall of the side plate 7, and a quantitative piston plate 182 is slidably provided inside the hollow block 181, and an elastic support component 183 is installed between the top of the quantitative piston plate 182 and the inner top of the hollow block 181, and the air outlet of the air pump 174 is fixedly connected with an air delivery pipe 184, and the pipe wall of the air delivery pipe 184 is connected to the bottom of the hollow block 181. They are commonly connected with a shunt pipe 185, inside of which a normally closed solenoid valve 186 is installed, and inside the gas supply pipe 184 a normally open solenoid valve 187 is installed on one side of the gas outlet end, a side wall of the hollow block 181 is provided with a back pressure hole 188 above the quantitative piston plate 182, a start detection component 19 is provided inside the hollow block 181, the normally open solenoid valve 187 and the normally closed solenoid valve 186 are both electrically connected to the controller 2, the elastic support component 183 includes components such as a cylinder, a telescopic component, and an elastic component, the telescopic component is slidably connected to the cylinder, the elastic component is arranged inside the cylinder and can support the telescopic component.

[0025] The start detection assembly 19 includes a support bar 191 fixedly installed inside the hollow block 181, and the support bar 191 is arranged below the quantitative piston plate 182, a pressure switch 192 is installed on the top of the support bar 191, and the quantitative piston plate 182 abuts against the moving contact of the pressure switch 192, and a venting pipe 193 is fixedly installed on the inner wall of the hollow block 181 at a position below the quantitative piston plate 182, and an electric control valve 194 is installed inside the venting pipe 193, and a side wall of the hollow block 181 is provided with a valve connected to the venting pipe 193. The second infrared ranging probe 196 corresponding to the position of the reflective block 144 is fixedly inserted into the side wall of the insulating block 9 away from the side plate 7, and the detection end of the second infrared ranging probe 196 is arranged in the detection cavity 10. The controller 2 controls the operation of the second infrared ranging probe 196 according to the electrical signal output by the pressure switch 192. The second infrared ranging probe 196 can detect the distance of the magnetic resistance piston plate 141 and automatically output an electrical signal to the controller 2 when the position of the magnetic resistance piston plate 141 exceeds the threshold.

[0026] The operating principle of the present invention is described as follows: The automobile shaft to be polished is taken from the supporting end of the clamping mechanism 6 (refer to Figure 2 , the support end is the position marked "b" in the figure, the dotted part in the figure is the shaft, and the arrow indicates the insertion direction) is inserted to move the front end of the automobile shaft to the three-jaw chuck of the clamping mechanism 6, and the automobile shaft is clamped and fixed by the three-jaw chuck of the clamping mechanism 6. Then, the grinding mechanism 3 is installed on the side wall of the mounting plate 154. At this time, the shaft is located between the grinding wheel of the grinding mechanism 3 and the detection roller 13. Then, the adjusting screw 85 is rotated. Under the cooperation of the slider 82 and the slide groove 83, and the thread cooperation of the adjusting screw 85 and the sliding seat 81, the side plate 7 will move toward the shaft until the side plate 7 moves to the set position (the set position is set according to the required diameter of the shaft after the shaft is polished, that is, after the shaft is polished, the roller wall of the detection roller 13 and the rod wall of the shaft are kept in a state of just contacting), and then the shaft is driven by the clamping mechanism 6 to rotate one circle at a uniform speed; Since the diameter of the shaft before grinding is larger than the diameter after grinding, the detection roller 13 will be blocked by the shaft, pushing the anti-magnetic piston plate 141 to move in the direction of the electromagnetic plate 143. When the shaft rotates one circle at a uniform speed before grinding, the detection roller 13 will move one circle along the surface of the shaft. During the walking process, the detection roller 13 will move synchronously with the changes in the concave and convex changes on the outer surface of the shaft under the action of the spring 146. For example, when the detection roller 13 moves to the raised position on the surface of the shaft, the distance that the detection roller 13 pushes the anti-magnetic piston plate 141 through the T-shaped rod 11 will also increase synchronously. Since the anti-magnetic piston plate 141 cannot move back with the T-shaped rod 11, after the shaft rotates one circle, the position where the anti-magnetic piston plate 141 stays is the position where the shaft is blocked. The maximum diameter of the grinding position, and after the shaft rotates one circle, the staff starts the controller 2. After the initial startup of the controller 2, it will immediately control the first infrared ranging probe 145 to work regularly. The transmitting end of the first infrared ranging probe 145 will emit infrared rays and calculate the time required to receive the infrared rays reflected by the reflective block 144. The distance between the magnetic resistance piston plate 141 and the first infrared ranging probe 145 can be known, and the distance is converted into an electrical signal and transmitted to the controller 2 at the same time. The controller 2 controls the extension distance of the telescopic end of the electric hydraulic cylinder 152 according to the strength of the electrical signal. The farther the distance between the magnetic resistance piston plate 141 and the first infrared ranging probe 145 is, the larger the maximum diameter of the shaft is. When the first infrared ranging probe 145 receives the reflected infrared light for a long time and the light signal strength is small, the electrical signal strength output to the controller 2 is smaller. At this time, the controller 2 controls the telescopic end of the electric hydraulic cylinder 152 to extend longer (for example, through components such as a proportional control valve in the hydraulic system, the flow rate and pressure of the hydraulic oil of the electric hydraulic cylinder 152 can be controlled by adjusting the opening of the proportional control valve, thereby realizing the regulation of the extension distance of the telescopic end of the electric hydraulic cylinder 152. Initially, in order to prevent the grinding wheel of the grinding mechanism 3 from affecting the installation of the shaft rod, it is necessary to control the extension distance of the telescopic end of the electric hydraulic cylinder 152 to reach the longest state through the controller 2, so that the grinding wheel of the grinding mechanism 3 is close to the shaft rod. The rod is far enough, and when the controller 2 adjusts the extension distance of the telescopic end of the electric hydraulic cylinder 152 according to the electrical signal output by the first infrared ranging probe 145, the grinding mechanism 3 will synchronously move back a certain distance as the electric hydraulic cylinder 152 drives the L-shaped plate 153 to move back, so that the grinding wheel of the grinding mechanism 3 contacts the shaft rod). At this time, the grinding wheel of the grinding mechanism 3 contacts the shaft rod and applies a certain grinding pressure to the shaft rod. Subsequently, the grinding mechanism 3 and the clamping mechanism 6 are started, and the grinding mechanism 3 can drive its own grinding wheel to start rotating, and the clamping mechanism 6 can drive the shaft rod to start rotating (the direction of rotation of the shaft rod is opposite to the direction of rotation of the grinding wheel). At this time, the grinding wheel of the grinding mechanism 3 can grind the surface of the shaft rod; After the grinding starts, the controller 2 controls the electromagnetic plate 143 to work for 2 seconds every 15 seconds. After the electromagnetic plate 143 is energized, under the effect of like-charge repulsion, it will push the permanent magnet 142 to drive the magnetic-resistance piston plate 141 to move in the direction of the T-shaped rod 11, so that the magnetic-resistance piston plate 141 moves back. Since the grinding wheel of the grinding mechanism 3 initially grinds the maximum diameter position of the shaft rod, as the grinding progresses, the maximum diameter is gradually ground away. At this time, the grinding pressure of the grinding mechanism 3 on the shaft rod will gradually be insufficient. By moving the magnetic-resistance piston plate 141 back, during the rotation of the shaft rod, the current maximum diameter of the shaft rod will be pushed to a new position by the T-shaped rod 11. Since the maximum diameter of the shaft rod has not been ground at the beginning, the initial movement distance of the magnetic-resistance piston plate 141 is the largest. As the shaft rod is ground, the magnetic-resistance piston plate 1 41 will move a smaller maximum distance, so after the controller 2 controls the electromagnetic plate 143 to work once, with the electromagnetic plate 143 as the reference, each time the magnetic blocking piston plate 141 moves, the distance between the magnetic blocking piston plate 141 and the electromagnetic plate 143 is larger, and after the controller 2 controls the electromagnetic plate 143 to work, it delays for 2 seconds (within the 2 seconds, the shaft rod rotates at least one circle) to control the first infrared ranging probe 145 to work once, at this time, the first infrared ranging probe 145 will detect the position change of the magnetic blocking piston plate 141 (at this time, the distance detected by the first infrared ranging probe 145 will be smaller than the distance detected last time), and the controller 2 will then re-control the extension distance of the telescopic end of the electric hydraulic cylinder 152 according to the electrical signal output by the first infrared ranging probe 145, so as to readjust the position of the grinding mechanism 3 to maintain a stable grinding pressure on the shaft rod; After the controller 2 is started, the controller 2 controls the air pump 174 to start working, and the suction end of the air pump 174 draws out the air inside the dust collecting chamber 171, so that negative pressure suction can be generated at the dust suction hole 173. Under the action of the negative pressure suction, the external airflow will flow through the shaft grinding position, which can not only assist in cooling the grinding position, but also can suck the dust produced by grinding into the dust collecting chamber 171 as much as possible, and trap the dust in the dust collecting chamber 171 through the dust filter 175 (open the cover 172 regularly, turn out the dust in the dust collecting chamber 171, and clean the dust attached to the surface of the dust filter 175); Among them, before the start of grinding, when the shaft is controlled to rotate at a uniform speed for one circle through the clamping mechanism 6, the controller 2 will connect the air pump 174 to the connection circuit between the conductive ring 164 and the resistor rod 162 (at this time, the output power of the air pump 174 will change synchronously with the change of the resistance of the connection circuit between the conductive ring 164 and the resistor rod 162). At the same time, the controller 2 controls the normally open solenoid valve 187 and the normally closed solenoid valve 186 to work regularly. When the shaft rotates, the detection roller 13 will move along the surface of the shaft, so that the T-shaped rod 11 can be driven to move synchronously based on the contour of the shaft surface, and then the resistor rod 162 can be driven to move synchronously through the insulating strip 161. At the position where the diameter of the shaft surface is larger, the moving distance of the T-shaped rod 11 becomes larger. At this time, the resistor rod 162 is connected to the conductive ring 164. The length of the connection loop between the electric ring 164 and the air pump 174 becomes smaller, so the resistance of the connection loop between the conductive ring 164, the resistance rod 162 and the air pump 174 becomes smaller. At this time, the current passing into the air pump 174 becomes larger, the output power of the air pump 174 increases, and the air pump 174 inputs more air into the hollow block 181 through the air pipe 184 and the shunt pipe 185. On the contrary, at the position where the diameter of the shaft surface is smaller, the air pump 174 inputs less air into the hollow block 181. Therefore, the amount of air in the hollow block 181 will change synchronously based on the size of the shaft diameter. Since the shaft diameter is large, it means that more parts need to be polished and removed, and more time is consumed. Therefore, when the shaft diameter is large, the amount of air delivered to the hollow block 181 can be increased, and the hollow The quantitative piston plate 182 inside the block 181 will be pushed upward under the action of the input air pressure. After the shaft rod rotates one circle at a uniform speed, the timing work of the normally open solenoid valve 187 and the normally closed solenoid valve 186 will end. At the same time, the controller 2 will disconnect the connection circuit between the air pump 174, the conductive ring 164 and the resistance rod 162, and the controller 2 will power the air pump 174 alone. Then, the grinding work of the shaft rod will be started, and the controller 2 will synchronously control the electric control valve 194 inside the vent pipe 193 to be energized and opened. At this time, the air inside the hollow block 181 will be gradually discharged through the breathable micropores 195. Under the action of the elastic support component 183, the quantitative piston plate 182 will gradually move back until the quantitative piston plate 182 back-presses to close the pressure switch 192. When the contact is moved, the controller 2 controls the electromagnetic plate 143 to work for 2 seconds, so that the magnetic resistance piston plate 141 moves back, and delays for 2 seconds to control the second infrared ranging probe 196 to work regularly. At this time, the second infrared ranging probe 196 will detect the position of the magnetic resistance piston plate 141 through the reflective block 144. When a new grinding wheel is used, the grinding efficiency of the grinding wheel on the shaft is high. When the quantitative piston plate 182 closes the pressure switch 192, the grinding work of the grinding wheel on the shaft should be completed (that is, the exhaust time of the air permeable micropores 195 matches the grinding efficiency of the grinding wheel. After the grinding wheel finishes grinding the shaft, the air inside the hollow block 181 is also exhausted). If the grinding wheel is excessively worn, the grinding efficiency of the grinding wheel on the shaft becomes low.At this time, when the air inside the hollow block 181 returns to normal pressure, the grinding wheel has not yet completed the grinding work on the shaft rod. At this time, the distance moved by the magnetic resistance piston plate 141 is greater than the moving distance of the shaft rod after grinding. Therefore, the second infrared ranging probe 196 will detect that the distance of the magnetic resistance piston plate 141 is greater than the preset distance after grinding of the magnetic resistance piston plate 141. When the distance exceeds the threshold value (for example, after the grinding of the shaft rod is completed, the distance between the magnetic resistance piston plate 141 and the second infrared ranging probe 196 is 5 cm. If the second infrared ranging probe 196 detects that the distance exceeds 5.4 cm, it means that the distance exceeds the threshold value), the second infrared ranging probe 196 will output an electrical signal to the controller 2. At this time, the controller 2 will detect that the distance is greater than the preset distance after grinding. The alarm module alarms the personnel, reminding them that the grinding efficiency of the grinding mechanism 3 is too low, and the personnel should stop the machine in time to replace the grinding wheel to maintain good grinding efficiency. At this point, the entire grinding process is over. After the grinding is completed (the distance electrical signal output by the first infrared ranging probe 145 will match the preset distance electrical signal, that is, the position of the magnetic blocking piston plate 141 matches the preset position, indicating that the grinding work is completed. At this time, the controller 2 will remind the personnel that the grinding work is completed through its own voice module), control the grinding mechanism 3 and the clamping mechanism 6 to stop working, and control the telescopic end of the electric hydraulic cylinder 152 to extend the maximum distance through the controller 2 (to avoid affecting the normal removal of the shaft), and then remove the shaft from the clamping mechanism 6.

[0027] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A vehicle shaft surface detection device, comprising a base (1) and a controller (2) arranged above the base (1), a grinding mechanism (3) being arranged above the base (1), a grinding table (4) being arranged below the base (1), and the grinding table (4) being provided with a screw assembly (5) for driving the base (1) to move, a clamping mechanism (6) for clamping the shaft being installed on the end surface of the grinding table (4), and the clamping mechanism (6) being used to drive the shaft to rotate, characterized in that: Also includes: A side plate (7) is arranged above the base (1), and the base (1) and the side plate (7) are jointly equipped with a position adjustment mechanism (8), and the controller (2) is fixedly connected to a side wall of the side plate (7); An insulating block (9) is mounted on the side wall of the side plate (7), a detection cavity (10) is provided inside the insulating block (9), and a cavity wall of the detection cavity (10) on a side away from the side plate (7) is slidably connected to a T-shaped rod (11), a strip block (12) is mounted on one end of the T-shaped rod (11) located outside the detection cavity (10), and a detection roller (13) is rotatably connected to the side wall of the strip block (12); A thickness detection unit (14) is installed inside the detection cavity (10); a pressure mechanism (15) corresponding to the position of the grinding mechanism (3) is installed on the end surface of the base (1); A contour detection unit (16) arranged inside the detection cavity (10); The dust suction and cooling unit (17) is arranged on the end surface of the base (1); a contour quantification mechanism (18) is installed on the side wall of the side plate (7); the contour detection unit (16) is electrically connected to the dust suction and cooling unit (17) via the controller (2); and the contour quantification mechanism (18) is connected to the air outlet of the dust suction and cooling unit (17).

2. The automobile shaft surface detection device according to claim 1, characterized in that: The position adjustment mechanism (8) comprises a sliding seat (81) fixedly mounted on the bottom of the side plate (7); a sliding block (82) is fixedly mounted on the bottom of the sliding seat (81); a sliding groove (83) matching the sliding block (82) is formed on the end surface of the base (1); fixed plates (84) are fixedly mounted on the end surface of the base (1) at positions on both sides of the sliding groove (83); the side walls of the two fixed plates (84) are rotatably connected to the same adjusting screw (85); and the rod wall of the adjusting screw (85) is threadedly connected to the side wall of the sliding seat (81).

3. The automobile shaft surface detection device according to claim 1, characterized in that: The thickness detection unit (14) comprises a magnetic resistance piston plate (141) slidably arranged inside the detection chamber (10), and the magnetic resistance piston plate (141) is arranged between the T-shaped rod (11) and the side plate (7), a permanent magnet (142) is fixedly installed on the side wall of the magnetic resistance piston plate (141) close to the side plate (7), an electromagnetic plate (143) is fixedly installed on the chamber wall of the detection chamber (10) away from the T-shaped rod (11), and the electromagnetic plate (143) is electrically connected to the controller (2), and the magnetic resistance piston plate (141) is away from the side wall of the detection chamber (10). A reflective block (144) is fixedly mounted on a side wall of one side of the side plate (7); a first infrared distance measuring probe (145) corresponding to the position of the reflective block (144) is fixedly mounted on an end of the insulating block (9) away from the side plate (7); a detection end of the first infrared distance measuring probe (145) is arranged inside the detection cavity (10); the electromagnetic plate (143) and the first infrared distance measuring probe (145) are both electrically connected to the controller (2); and a spring (146) is fixedly arranged between the T-shaped rod (11) and the cavity wall of the detection cavity (10).

4. The automobile shaft surface detection device according to claim 3, characterized in that: The pressure mechanism (15) comprises a support platform (151) fixedly mounted on the end surface of the base (1), a group of electric hydraulic cylinders (152) are fixedly plugged into the side wall of the support platform (151), and the telescopic ends of the electric hydraulic cylinders (152) are fixedly connected to the same L-shaped plate (153), the L-shaped plate (153) is slidably connected to the top of the support platform (151), a mounting plate (154) is fixedly mounted on the top of the L-shaped plate (153), and the grinding mechanism (3) is mounted on the side wall of the mounting plate (154) close to the side plate (7), and the controller (2) controls the extension distance of the telescopic end of the electric hydraulic cylinder (152) according to the strength of the electrical signal output by the first infrared ranging probe (145).

5. The automobile shaft surface detection device according to claim 3, characterized in that: The contour detection unit (16) comprises an insulating strip (161) fixedly mounted on the side wall of the T-shaped rod (11), and a resistance rod (162) is fixedly mounted on the side wall of the insulating strip (161) away from the side plate (7), an insulating plate (163) is fixedly mounted on the cavity wall of the detection cavity (10), and a conductive ring (164) coaxial with the resistance rod (162) is fixedly inserted into the side wall of the insulating plate (163), and the conductive ring (164) is in sliding contact with the wall of the resistance rod (162).

6. The automobile shaft surface detection device according to claim 5, characterized in that: The dust collection and cooling unit (17) comprises a dust collection chamber (171) opened inside the base (1), and the upper chamber wall of the dust collection chamber (171) is in an open shape; a cover plate (172) matching the opening of the dust collection chamber (171) is installed on the end surface of the base (1), and a plurality of dust collection holes (173) are opened on the end surface of the cover plate (172); an air pump (174) is fixedly installed at a position on one side of the cover plate (172) on the end surface of the base (1); the suction end of the air pump (174) is connected to the inside of the dust collection chamber (171); a dust filter (175) is installed inside the dust collection chamber (171) at a position at the suction end of the air pump (174); and the air pump (174) is electrically connected to the conductive ring (164) and the resistance rod (162) through a controller (2).

7. The automobile shaft surface detection device according to claim 6, characterized in that: The profile quantitative mechanism (18) comprises a hollow block (181) fixedly mounted on the side wall of the side plate (7), a quantitative piston plate (182) being slidably disposed inside the hollow block (181), and a same elastic support component (183) being mounted between the top of the quantitative piston plate (182) and the inner top of the hollow block (181), an air outlet end of the air pump (174) being fixedly connected to an air delivery pipe (184), and a pipe wall of the air delivery pipe (184) and a bottom of the hollow block (181) being connected to a diversion pipe (185), a normally closed solenoid valve (186) is installed inside the shunt pipe (185), and a normally open solenoid valve (187) is installed inside the gas supply pipe (184) at one side of the gas outlet end, a back pressure hole (188) is opened on the side wall of the hollow block (181) at a position above the quantitative piston plate (182), a start detection component (19) is provided inside the hollow block (181), and the normally open solenoid valve (187) and the normally closed solenoid valve (186) are both electrically connected to the controller (2).

8. The automobile shaft surface detection device according to claim 7, characterized in that: The start detection assembly (19) comprises a support bar (191) fixedly mounted inside the hollow block (181), and the support bar (191) is arranged below the quantitative piston plate (182), a pressure switch (192) is mounted on the top of the support bar (191), and the quantitative piston plate (182) abuts against a moving contact of the pressure switch (192), and an air venting pipe (193) is fixedly mounted on the inner wall of the hollow block (181) at a position below the quantitative piston plate (182), and the interior of the air venting pipe (193) is provided with a pressure switch (192). An electric control valve (194) is installed, and a ventilating micropore (195) connected to the vent pipe (193) is provided on the side wall of the hollow block (181). A second infrared ranging probe (196) corresponding to the position of the reflective block (144) is fixedly plugged into the side wall of the insulating block (9) away from the side plate (7), and the detection end of the second infrared ranging probe (196) is arranged in the detection cavity (10). The controller (2) controls the operation of the second infrared ranging probe (196) according to the electrical signal output by the pressure switch (192).

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