Height adjustment structure of roughness tester

Abstract

The present application relates to the technical field of precision parts surface detection mechanical equipment, specifically to a roughness tester height adjusting structure, comprising a rack, the rack two side walls are fixedly connected with a guard plate, the rack corresponding one end is rotatably connected with two rotating shafts, the rack side wall is fixedly connected with a first motor, the first motor output end is fixedly connected with one end of one rotating shaft, the two rotating shafts outer side walls are all transmissionally connected with two chain belts, the two chain belts outer side walls are provided with a positioning mechanism for positioning and clamping bearing workpieces, the roughness tester height adjusting structure comprises an automatic conveying structure composed of a first motor, a rotating shaft and a chain belt, and is matched with an integrated positioning mechanism of multiple electric telescopic rods and double signal sensors, can complete bearing workpiece automatic conveying, inner and outer ring bidirectional clamping and automatic centering correction, can automatically identify workpiece placing deflection and rotate to coaxial center position.

Description

Technical Field

[0001] This invention relates to the field of precision component surface inspection machinery and equipment, specifically a roughness tester height adjustment structure. Background Technology

[0002] Rolling bearings are core precision transmission components of mechanical equipment. The roughness of the annular raceway sidewall inside the bearing, before the rollers are installed, directly determines the bearing's operating friction resistance, service life, operating noise, and sealing performance. When there are cutting burrs, machining scratches, unevenness, or dust residue on the inner wall of the raceway, the finished bearing yield will be greatly reduced. Therefore, before the bearing is processed and the rollers are assembled, a comprehensive inspection of the roughness of the inner wall of the raceway cavity must be carried out.

[0003] Traditional bearing roughness inspection relies on manual operation with a portable roughness meter. Manual inspection has many unavoidable drawbacks. Simple lifting roughness inspection stands have appeared on the market, but traditional equipment only has a single height adjustment function. It lacks integrated functions such as automatic workpiece conveying, automatic centering and clamping, pre-inspection internal wall dust removal, automated continuous inspection, and centralized waste collection. It cannot meet the batch online inspection needs of bearing production lines. At the same time, traditional lifting mechanisms can only complete a single height adjustment and lack supporting structures for automatically correcting workpiece placement deviation and automatically cleaning internal wall machining debris. Dust adhering to the raceway surface will seriously interfere with the roughness inspection values, resulting in poor repeatability of inspection data, high labor intensity of manual operation, and low inspection efficiency. It is difficult to meet the requirements of modern bearing production lines for large-scale, high-precision, and automated quality inspection. Summary of the Invention

[0004] The purpose of this invention is to provide a height adjustment structure for a roughness tester, which solves the defects of lacking an automated conveyor centering structure, lacking a graded electric height adjustment component, lacking a synchronous cleaning and slag collection function for the raceway, easy collision of the probe with the workpiece, measurement reference deviation, dust interference with the detection value, and inability to perform continuous batch testing.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a height-adjustable structure for a roughness tester, comprising a frame, with protective plates fixedly connected to both side walls of the frame, two rotating shafts rotatably connected to corresponding ends of the frame, a first motor fixedly connected to the side wall of the frame, the output end of the first motor fixedly connected to one end of one of the rotating shafts, two chain belts drivingly connected to the outer side walls of the two rotating shafts, a positioning mechanism for positioning and clamping bearing workpieces provided on the outer side walls of the two chain belts, and an adjustment mechanism for height adjustment of the tester provided at the top of the frame, the adjustment mechanism comprising two fixed frames fixedly connected to the top of the frame, an electric slide groove provided on the inner side wall of the fixed frame, an electric slider slidably connected to the side wall of the electric slide groove, and a cleaning and testing mechanism for cleaning and testing bearing workpieces provided on the side wall of the electric slider.

[0006] Preferably, the positioning mechanism includes multiple transport plates fixedly connected to the top end of a chain belt. A housing is provided at the top end of each transport plate. A first gear is rotatably connected to the side wall of the housing. A first transmission rod is provided at the bottom end of the first gear. A first annular rack is rotatably connected to the inner side wall of the housing. The outer side wall of the first gear penetrates the housing and meshes with the outer side wall of the first annular rack. Multiple first electric telescopic rods are fixedly connected to the inner side wall of the first annular rack. A first clamping plate is provided at the telescopic end of each of the multiple first electric telescopic rods.

[0007] Preferably, a fixing block is fixedly connected to the inner sidewall of the transport plate, and a rotating shaft is rotatably connected to the inner sidewall of the fixing block. A positioning groove is provided at the top of the rotating shaft, and a first turntable is provided on the outer sidewall of the rotating shaft. A plurality of first sliding grooves are provided at the top of the first turntable. A plurality of first guide rods are slidably connected to the top of the fixing block, and a first sliding column is provided at the top of each of the plurality of first guide rods. The outer sidewalls of the plurality of first sliding columns are slidably connected to the inner sidewalls of the plurality of first sliding grooves, respectively.

[0008] Preferably, each of the plurality of first guide rods has a positioning plate at one end, and each of the positioning plates has two first holes on its sidewall. A first signal sensor is fixedly connected to the inner sidewall of the first hole, and a first elastic component is fixedly connected to the inner sidewall of the first hole. A first protrusion is provided at the other end of the first elastic component. A second hole is provided on the sidewall of the positioning plate, and a second signal sensor is provided on the inner sidewall of the second hole. A second elastic component is provided on the inner sidewall of the second hole, and a second protrusion is fixedly connected to the other end of the second elastic component.

[0009] Preferably, the positioning mechanism further includes a second motor fixedly connected to the side wall of the guard plate, a sleeve provided at the output end of the second motor, a rotating rod slidably connected to the inner side wall of the sleeve, a second electric telescopic rod provided on the side wall of the sleeve, the telescopic end of the second electric telescopic rod being fixedly connected to the outer side wall of the rotating rod, a third bevel gear and a fourth bevel gear being fixedly connected to the outer side wall of the rotating rod, a second transmission rod provided at the bottom end of the rotating shaft, a second bevel gear provided at the bottom end of the second transmission rod, and a first bevel gear provided at the bottom end of the first transmission rod.

[0010] Preferably, a cylinder is fixedly connected to the side wall of the electric slider, an adjusting cylinder is fixedly connected to the side wall of the cylinder, a third electric telescopic rod is fixedly connected to the inner side wall of the adjusting cylinder, a fixed plate is provided at the telescopic end of the third electric telescopic rod, a sliding frame is provided at the top of the fixed plate, the outer side wall of the adjusting cylinder is slidably connected to the side wall of the sliding frame, and a plurality of second guide rods are slidably connected to the bottom end of the fixed plate, each of the plurality of second guide rods having a second clamping plate at one end.

[0011] Preferably, each of the second guide rods has a second sliding column at its bottom end, the bottom end of the fixed plate is rotatably connected to a second turntable, the bottom end of the second turntable has a plurality of second sliding grooves, the inner sidewalls of the plurality of second sliding grooves are slidably connected to the outer sidewalls of the plurality of second sliding columns, and the bottom end of the second turntable is provided with a positioning block.

[0012] Preferably, the cleaning testing mechanism includes a third motor fixedly connected to the side wall of the electric slider, a second gear being provided at the output end of the third motor, a second and a third annular rack being slidably connected to the outer wall of the cylinder, a plurality of connecting frames being provided on the outer walls of the second and third annular racks, a plurality of fifth and fourth electric telescopic rods being rotatably connected to the outer wall of the cylinder, a fourth gear being provided on the outer wall of the fifth electric telescopic rod, the outer walls of the plurality of fourth gears meshing with the bottom side wall of the third annular rack, and a third gear being provided on the outer wall of the fourth electric telescopic rod, the outer walls of the plurality of third gears meshing with the top side wall of the second annular rack.

[0013] Preferably, each of the fifth electric telescopic rods has a cleaning rod at its telescopic end, a blocking plate on the outer wall of the cleaning rod, a plurality of second suction holes on the side wall of the blocking plate, a plurality of first suction holes on the outer wall of the cleaning rod, a cleaning strip on the outer wall of the cleaning rod, a test rod at each of the fourth electric telescopic rods, a plurality of laser sensors on the outer wall of the test rod, and a telescopic tube at the top of each of the blocking plates.

[0014] Preferably, a slag collection box is fixedly connected to the outer wall of the cylinder, and the other end of the telescopic tube passes through the cylinder and is fixedly connected to the slag collection box. A second annular rack is slidably connected to the top of the slag collection box, and a cleaning block is provided at the bottom of the second annular rack. The outer wall of the cleaning block is slidably connected to the inner wall of the slag collection box. The top of the second annular rack is fixedly connected to the inner wall of multiple connecting frames. A collection box is fixedly connected to the outer wall of another guard plate. An air pump is provided at the top of the collection box. A drawer is detachably connected to the side wall of the collection box. A transmission pipe is provided at the bottom of the slag collection box, and the other end of the transmission pipe is fixedly connected to the input end of the air pump.

[0015] Compared with the prior art, the beneficial effects of the embodiments of the present invention are: 1. This invention comprises an automated conveying structure consisting of a first motor, a rotating shaft, and a chain belt. Combined with a positioning mechanism integrating multiple sets of electric telescopic rods and dual signal sensors, it can automatically convey bearing workpieces, clamp inner and outer rings bidirectionally, and automatically center and correct them. It can automatically identify workpiece misalignment and rotate it to the coaxial center position, completely replacing manual loading and unloading and manual positioning processes. Simultaneously, the adjustment mechanism uses an electric slideway for overall coarse lifting and a third electric telescopic rod for micron-level fine-tuning, enabling precise control of the test rod's descent speed. This effectively avoids the problems of probe impact and scratching of precision bearing raceways that easily occur with manual handheld or single-stage lifting equipment, significantly reducing the scrap loss of diamond probes and bearing workpieces. Workpiece positioning accuracy and height adjustment stability are significantly improved, making it suitable for continuous quality inspection operations on bearing production lines and greatly reducing manual labor intensity.

[0016] 2. This invention integrates a cleaning and testing mechanism with a cleaning rod, suction hole, negative pressure air pump, and dust collection box. It can perform circumferential synchronous cleaning and negative pressure suction of the bearing cavity raceway without rollers before roughness testing. The metal debris generated during cleaning is collected in a detachable collection box through a telescopic tube and a transmission tube. This solves the defects of traditional roughness testing equipment, such as the lack of pre-dust removal and dust adhering to the raceway, which interferes with the roughness measurement values. In addition, the third motor, in conjunction with the double ring rack, can drive the cleaning rod and test bar to rotate around the entire circumference of the bearing raceway for testing, achieving full coverage of the inner wall of the raceway without any omissions. The laser sensor calibrates the perpendicular angle between the probe and the arc-shaped raceway in real time, ensuring that every data collection meets the roughness measurement standard, effectively improving the repeatability and accuracy of the test data. At the same time, the centralized dust collection avoids environmental pollution in the workshop. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a partial structural diagram of the present invention; Figure 3 This is a partial cross-sectional view of the present invention; Figure 4This is a partial cross-sectional view of the positioning mechanism of the present invention; Figure 5 For the present invention Figure 3 Enlarged view of point A in the middle; Figure 6 This is a partial cross-sectional view of the adjustment mechanism of the present invention; Figure 7 This is a partial structural diagram of the cleaning testing mechanism of the present invention; Figure 8 For the present invention Figure 3 Enlarged diagram of point B in the middle.

[0018] In the diagram: 1. Frame; 12. First motor; 13. Rotating shaft; 14. Chain belt; 15. Guard plate; 2. Positioning mechanism; 3. Adjustment mechanism; 4. Cleaning and testing mechanism; 21. Transport plate; 22. Housing; 23. First ring rack; 24. First gear; 25. First transmission rod; 26. First bevel gear; 27. First electric telescopic rod; 28. First clamping plate; 29. ​​Fixing block; 210. Rotating shaft; 211. Second transmission rod; 212. Second bevel gear; 21 3. First turntable; 214. First slide groove; 215. First guide rod; 216. First sliding column; 217. Positioning plate; 218. First hole; 219. First signal sensor; 220. First elastic component; 221. First protrusion; 222. Second hole; 223. Second signal sensor; 224. Second elastic component; 225. Second protrusion; 226. Positioning groove; 227. Second motor; 228. Sleeve; 229. Rotating rod; 230. Second motor 231. Telescopic rod; 232. Third bevel gear; 233. Fourth bevel gear; 31. Fixed frame; 32. Electric slide rail; 33. Electric slider; 34. Cylinder; 35. Adjusting cylinder; 36. Third electric telescopic rod; 37. Fixed plate; 38. Second guide rod; 39. Second clamping plate; 310. Second turntable; 311. Second slide rail; 312. Second sliding column; 313. Positioning block; 314. Sliding frame; 41. Third motor; 42. Second gear; 43. Third gear; 44. Second ring rack; 45. Connecting frame; 46. Third ring rack; 47. Fourth gear; 48. Fourth electric telescopic rod; 49. Test rod; 410. Laser sensor; 411. Fifth electric telescopic rod; 412. Sweeping rod; 413. Sweeping strip; 414. First suction hole; 415. Blocking plate; 416. Second suction hole; 417. Telescopic tube; 418. Slag collection box; 419. Transmission tube; 420. Air pump; 421. Collection box; 422. Cleaning block. Detailed Implementation

[0019] The technical solution of this patent will be further described in detail below with reference to specific embodiments.

[0020] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0021] Please see Figure 1 - Figure 8 In this embodiment of the invention, a height-adjustable roughness tester structure includes a frame 1. Protective plates 15 are fixedly connected to both side walls of the frame 1. Two rotating shafts 13 are rotatably connected to corresponding ends of the frame 1. A first motor 12 is fixedly connected to the side wall of the frame 1. The output end of the first motor 12 is fixedly connected to one end of one of the rotating shafts 13. Two chain belts 14 are drive-connected to the outer side walls of the two rotating shafts 13. A positioning mechanism 2 for positioning and clamping bearing workpieces is provided on the outer side walls of the two chain belts 14. An adjustment mechanism 3 for height adjustment of the tester is provided at the top of the frame 1. The adjustment mechanism 3 includes two fixed frames 31 fixedly connected to the top of the frame 1. An electric slide groove 32 is provided on the inner side wall of the fixed frame 31. An electric slider 33 is slidably connected to the side wall of the electric slide groove 32. A cleaning and testing mechanism 4 for cleaning and testing bearing workpieces is provided on the side wall of the electric slider 33.

[0022] The positioning mechanism 2 includes multiple transport plates 21 fixedly connected to the top end of a chain belt 14. A housing 22 is provided at the top end of each transport plate 21. A first gear 24 is rotatably connected to the side wall of the housing 22. A first transmission rod 25 is provided at the bottom end of the first gear 24. A first annular rack 23 is rotatably connected to the inner side wall of the housing 22. The outer side wall of the first gear 24 penetrates the housing 22 and meshes with the outer side wall of the first annular rack 23. Multiple first electric telescopic rods 27 are fixedly connected to the inner side wall of the first annular rack 23. Each telescopic end of the multiple first electric telescopic rods 27 is provided with a first clamping plate 28. The inner side wall of the transport plate 21 is fixed... A fixing block 29 is connected, and a rotating shaft 210 is rotatably connected to the inner wall of the fixing block 29. A positioning groove 226 is provided at the top of the rotating shaft 210. A first turntable 213 is provided on the outer wall of the rotating shaft 210. Multiple first sliding grooves 214 are provided at the top of the first turntable 213. Multiple first guide rods 215 are slidably connected to the top of the fixing block 29. Each of the multiple first guide rods 215 has a first sliding post 216 at its top. The outer walls of the multiple first sliding posts 216 are slidably connected to the inner walls of the multiple first sliding grooves 214. A positioning plate 217 is provided at one end of each of the multiple first guide rods 215. Each of the seven side walls has two first holes 218. A first signal sensor 219 is fixedly connected to the inner side wall of the first hole 218, and a first elastic component 220 is fixedly connected to the inner side wall of the first hole 218. A first protrusion 221 is provided at the other end of the first elastic component 220. A second hole 222 is opened on the side wall of the positioning plate 217. A second signal sensor 223 is provided on the inner side wall of the second hole 222, and a second elastic component 224 is provided on the inner side wall of the second hole 222. A second protrusion 225 is fixedly connected to the other end of the second elastic component 224. The positioning mechanism 2 also includes a guard plate 15. A second motor 227 is fixedly connected to the wall. A sleeve 228 is provided at the output end of the second motor 227. A rotating rod 229 is slidably connected to the inner wall of the sleeve 228. A second electric telescopic rod 230 is provided on the side wall of the sleeve 228. The telescopic end of the second electric telescopic rod 230 is fixedly connected to the outer wall of the rotating rod 229. A third bevel gear 231 and a fourth bevel gear 232 are fixedly connected to the outer wall of the rotating rod 229. A second transmission rod 211 is provided at the bottom end of the rotating shaft 210. A second bevel gear 212 is provided at the bottom end of the second transmission rod 211. A first bevel gear 26 is provided at the bottom end of the first transmission rod 25.

[0023] Furthermore, when the transport plate 21 is delivered to the corresponding station of the positioning mechanism 2, the equipment triggers the workpiece clamping and centering program. Multiple sets of first electric telescopic rods 27 extend outward, and the first clamping plates 28 connected to the telescopic ends of the first electric telescopic rods 27 synchronously abut against the bearing outer ring from all sides, completing the initial limiting and fixing of the bearing outer ring. At the same time, the second motor 227 fixedly installed on the side wall of the guard plate 15 starts to output power. The output end of the second motor 227 is connected to the sleeve 228, and the third bevel gear 231 and the fourth bevel gear 232 fixed on the outer wall of the rotating rod 229 rotate synchronously. At this time, the fourth bevel gear 232 meshes with the second bevel gear 212 at the bottom of the second transmission rod 211, and the second transmission rod 211 transmits torque to the rotatable part inside the fixed block 29. The assembled rotating shaft 210, with the first turntable 213 fixed at its top, rotates circumferentially. Multiple first grooves 214 on the surface of the first turntable 213 push the matching sliding first sliding columns 216 within the grooves towards the center. Multiple first guide rods 215 connected to the first sliding columns 216 extend synchronously towards the inner ring of the bearing. The positioning plate 217 at the end of the first guide rod 215 adheres to the side wall of the inner ring of the bearing, completing a secondary precise centering. If, at this time, the first protrusion 221 inside the first hole 218 on the positioning plate 217 does not compress the first elastic component 220, thus sensing the signal transmission of the first signal sensor 219, and at this time, the second protrusion 225 inside the second hole 222 on the positioning plate 217 compresses the second elastic component 224 from... The second signal sensor 223 transmits a signal, and the two sets of sensors feed back the centering signal to the control system. At this time, the bearing position is not correct. Subsequently, the second electric telescopic rod 230 mounted on the side wall of the sleeve 228 can drive the rotating rod 229 slidably mounted inside the sleeve 228 to perform axial displacement adjustment. Activating the second electric telescopic rod 230 drives the rotating rod 229 to move inward into the sleeve 228, thereby causing the fourth bevel gear 232 to disengage from the second bevel gear 212. At the same time, the first bevel gear 26 meshes with the third bevel gear 231, and the second motor 227 starts again, thereby driving the first transmission rod 25 and the first gear 24 to start rotating. The first gear 24, through its outer teeth, engages with the first ring on the inner wall of the housing 22. The toothed racks 23 mesh with each other for transmission. The first annular rack 23 rotates in a circle and synchronously drives the multiple first electric telescopic rods 27 on the inner side to rotate synchronously, thereby driving the bearing to rotate. At this time, the first protrusion 221 and the second protrusion 225 slide against the inner wall of the bearing. If the first protrusion 221 compresses the first elastic component 220 to sense the signal transmission of the first signal sensor 219, and at this time the second protrusion 225 does not compress the second elastic component 224 to sense the signal transmission of the second signal sensor 223, the two sets of sensors will feed back the centering signal to the control system, thereby determining that the bearing is correctly positioned and confirming that the bearing is not offset or tilted. The multiple first electric telescopic rods 27 drive the first clamping plate 28 to reset and no longer clamp the bearing.

[0024] A cylinder 34 is fixedly connected to the side wall of an electric slider 33. An adjusting cylinder 35 is fixedly connected to the side wall of the cylinder 34. A third electric telescopic rod 36 is fixedly connected to the inner side wall of the adjusting cylinder 35. A fixed plate 37 is provided at the telescopic end of the third electric telescopic rod 36. A sliding frame 314 is provided at the top of the fixed plate 37. The outer side wall of the adjusting cylinder 35 is slidably connected to the side wall of the sliding frame 314. A plurality of second guide rods 38 are slidably connected to the bottom end of the fixed plate 37. A second clamping plate 39 is provided at one end of each of the plurality of second guide rods 38. A second sliding column 312 is provided at the bottom end of each of the plurality of second guide rods 38. A second turntable 310 is rotatably connected to the bottom end of the fixed plate 37. A plurality of second sliding grooves 311 are provided at the bottom end of the second turntable 310. The inner side wall of the plurality of second sliding grooves 311 is slidably connected to the outer side wall of the plurality of second sliding columns 312 respectively. A positioning block 313 is provided at the bottom end of the second turntable 310.

[0025] Furthermore, the electric slide rails 32 on the inner side of the two sets of fixed brackets 31 at the top of the frame 1 are energized and activated. The electric sliders 33 mounted on the electric slide rails 32 move downward along the vertical track to complete the overall coarse adjustment of the height of the detection component. The cylinder 34 rigidly connected to the side wall of the electric sliders 33 moves downward synchronously. The third electric telescopic rod 36 mounted inside the adjusting cylinder 35 fixed to the side of the cylinder 34 slowly extends downward, pushing the fixed plate 37 connected to the telescopic end to make micron-level precise height fine adjustment. The sliding bracket 314 mounted on the top of the fixed plate 37 slides smoothly along the outer wall of the adjusting cylinder 35 to ensure no lateral deviation during the vertical lifting process, until the positioning block 313 is inserted into the positioning groove 226. Then, the second electric telescopic rod 230 is activated to drive the rotating rod 229 outward from the sleeve 228. The movement of the part causes the fourth bevel gear 232 to mesh with the second bevel gear 212 again, and the second motor 227 starts again, driving the rotating shaft 210 and the fourth bevel gear 232 to start rotating, thereby resetting the first guide rod 215, so that the side wall of the positioning plate 217 no longer contacts the inner wall of the bearing. At the same time, it drives the positioning block 313 to rotate, causing the second turntable 310 to rotate. Multiple second sliding grooves 311 are opened at the bottom of the second turntable 310. The sliding matching second sliding column 312 in the groove drives multiple second guide rods 38 to extend outward synchronously, thereby causing the second clamping plate 39 at the end of the second guide rod 38 to clamp the inner wall of the bearing from all sides. Subsequently, the third electric telescopic rod 36 drives the fixed plate 37 and the bearing to move upward until the bearing moves to the cleaning position and stops.

[0026] The cleaning testing mechanism 4 includes a third motor 41 fixedly connected to the side wall of an electric slider 33. A second gear 42 is provided at the output end of the third motor 41. A second annular rack 44 and a third annular rack 46 are slidably connected to the outer wall of the cylinder 34. Multiple connecting brackets 45 are provided on the outer walls of the second annular rack 44 and the third annular rack 46. Multiple fifth electric telescopic rods 411 and multiple fourth electric telescopic rods 48 are rotatably connected to the outer wall of the cylinder 34. A fourth gear 47 is provided on the outer wall of the fifth electric telescopic rod 411, and the outer walls of the multiple fourth gears 47 mesh with the bottom side wall of the third annular rack 46. A third gear 43 is provided on the outer wall of the fourth electric telescopic rod 48, and the outer walls of the multiple third gears 43 mesh with the top side wall of the second annular rack 44. Each telescopic end of the multiple fifth electric telescopic rods 411 is provided with a sweeping rod 412. A blocking plate 415 is provided on the outer wall of the sweeping rod 412, and multiple second suction holes 416 are provided on the side wall of the blocking plate 415. Multiple... The first suction hole 414, the outer wall of the cleaning rod 412 is provided with a cleaning strip 413, the telescopic ends of multiple fourth electric telescopic rods 48 are each provided with a test rod 49, the outer wall of the test rod 49 is provided with multiple laser sensors 410, the top of multiple blocking plates 415 is provided with a telescopic tube 417, the outer wall of the cylinder 34 is fixedly connected to a slag collection box 418, the other end of the telescopic tube 417 passes through the cylinder 34 and is fixedly connected to the slag collection box 418, the top of the slag collection box 418 is slidably connected to a second annular rack 44, the second A cleaning block 422 is provided at the bottom of the annular rack 44. The outer wall of the cleaning block 422 is slidably connected to the inner wall of the slag collection box 418. The top of the second annular rack 44 is fixedly connected to the inner wall of multiple connecting brackets 45. A collection box 421 is fixedly connected to the outer wall of another guard plate 15. An air pump 420 is provided at the top of the collection box 421. A drawer is detachably connected to the side wall of the collection box 421. A transmission pipe 419 is provided at the bottom of the slag collection box 418. The other end of the transmission pipe 419 is fixedly connected to the input end of the air pump 420.

[0027] Furthermore, the cleaning test mechanism 4 initiates the operation procedure. Multiple fifth electric telescopic rods 411 simultaneously drive the sweeping rods 412 and the blocking plate 415 to move towards the bearing, so that the side wall of the blocking plate 415 contacts the outer wall of the bearing. The sweeping rods 412 extend into the hollow cavity of the bearing without rollers. Subsequently, the third motor 41 starts running, and its output end drives the second gear 42 to rotate, thereby driving the third gear 43, the second ring rack 44, multiple connecting frames 45, the third ring rack 46, and multiple fourth gears 47 to rotate synchronously. This causes the sweeping strips 413 arranged on the outer wall of the sweeping rods 412 to perform circumferential reciprocating wiping along the arc-shaped raceway. The cleaning process removes residual metal cutting debris and processing dust from the hollow cavity of the bearing. While the cleaning process continues, the air pump 420 mounted on the outside of the side guard plate 15 of the frame 1 continuously outputs negative pressure suction. The input end of the air pump 420 is connected to the slag collection box 418 through the transmission pipe 419, continuously sucking the waste accumulated inside the slag collection box 418 into the removable storage drawer inside the collection box 421 on the outside of the guard plate 15. At the same time, the cleaning block 422 fixed at the bottom of the second annular rack 44 slides back and forth with the rack, continuously scraping off the metal dust attached to the inner wall of the slag collection box 418, preventing the suction pipe from being blocked and affecting the negative pressure adsorption effect.

[0028] Working principle: First, turn on the main power supply of the equipment. The operator first places the bearing workpiece to be tested, without the rollers installed, stably inside the top housing 22 of the transport plate 21 mounted on the chain belt 14 on the frame 1. After starting the whole machine control system, the first motor 12 installed on the side wall of the frame 1 starts to run synchronously. The output shaft of the first motor 12 drives the rotating shaft 13 on one side to rotate. The two parallel rotating shafts 13 synchronously drive the two sets of chain belts 14 to uniformly circulate forward along the track between the guard plates 15 on both sides of the frame 1. The transport plate 21 carrying the bearing workpiece moves synchronously with the chain belt 14. When the transport plate 21 is delivered to the corresponding station of the positioning mechanism 2, the equipment triggers the workpiece clamping and centering program. Multiple sets of first electric telescopic rods 27 extend outward, and the first clamping plates 28 connected to the telescopic ends of the first electric telescopic rods 27 synchronously abut against the bearing outer ring from all sides, completing the initial limiting and fixing of the bearing outer ring. At the same time, the second motor 227 fixedly installed on the side wall of the guard plate 15 starts to output power. The output end of the second motor 227 is connected to the sleeve 228, and the third bevel gear 231 and the fourth bevel gear 232 fixed on the outer wall of the rotating rod 229 rotate synchronously. At this time, the fourth bevel gear 232 meshes with the second bevel gear 212 at the bottom of the second transmission rod 211, and the second transmission rod 211 transmits torque to the rotating rod 29 which is rotatably assembled inside the fixed block 29. Shaft 210, the first turntable 213 fixed at the top of the shaft 210 rotates circumferentially. Multiple first grooves 214 on the surface of the first turntable 213 push the first sliding column 216 matching the sliding within the grooves to converge towards the center. Multiple first guide rods 215 connected to the first sliding column 216 extend synchronously towards the inner ring of the bearing. The positioning plate 217 at the end of the first guide rod 215 fits against the side wall of the inner ring of the bearing to complete secondary precise centering. If at this time, the first protrusion 221 inside the first hole 218 on the positioning plate 217 does not compress the first elastic component 220 to sense the signal transmission of the first signal sensor 219, and at this time, the second protrusion 225 inside the second hole 222 on the positioning plate 217 compresses the second elastic component 224 ... The two signal sensors 223 transmit signals, and the two sets of sensors feed back the centering signal to the control system. At this time, the bearing position is not correct. Subsequently, the second electric telescopic rod 230 mounted on the side wall of the sleeve 228 can drive the rotating rod 229 slidably mounted inside the sleeve 228 to perform axial displacement adjustment. Activating the second electric telescopic rod 230 drives the rotating rod 229 to move inward into the sleeve 228, thereby causing the fourth bevel gear 232 to disengage from the second bevel gear 212. At the same time, the first bevel gear 26 meshes with the third bevel gear 231. The second motor 227 starts again, thereby driving the first transmission rod 25 and the first gear 24 to start rotating. The first gear 24 engages with the first annular tooth on the inner wall of the housing 22 through its outer teeth. The first ring rack 23 meshes with each other, and rotates in a circular motion, which in turn drives the multiple first electric telescopic rods 27 on the inner side to rotate synchronously, thereby driving the bearing to rotate. At this time, the first protrusion 221 and the second protrusion 225 slide against the inner wall of the bearing. If the first protrusion 221 compresses the first elastic component 220 to sense the signal transmission of the first signal sensor 219, and at this time the second protrusion 225 does not compress the second elastic component 224 to sense the signal transmission of the second signal sensor 223, the two sets of sensors will feed back the centering signal to the control system, thereby determining that the bearing is correctly positioned and confirming that the bearing is not offset or tilted. The multiple first electric telescopic rods 27 drive the first clamping plate 28 to reset and no longer clamp the bearing.

[0029] Subsequently, the electric slide rails 32 inside the two sets of fixed brackets 31 at the top of the frame 1 are powered on and started. The electric sliders 33 mounted on the electric slide rails 32 move downward along the vertical track to complete the overall coarse adjustment of the height of the detection component. The cylinder 34 rigidly connected to the side wall of the electric slider 33 moves downward synchronously. The third electric telescopic rod 36 mounted inside the adjusting cylinder 35 fixed to the side of the cylinder 34 slowly extends downward, pushing the fixed plate 37 connected to the telescopic end to make micron-level precise height fine adjustment. The sliding bracket 314 mounted on the top of the fixed plate 37 slides smoothly along the outer wall of the adjusting cylinder 35 to ensure no lateral deviation during the vertical lifting process, until the positioning block 313 is inserted into the positioning groove 226. Then, the second electric telescopic rod 230 is started to drive the rotating rod 229 to the outside of the sleeve 228. The movement causes the fourth bevel gear 232 to mesh with the second bevel gear 212 again, and the second motor 227 starts again, driving the rotating shaft 210 and the fourth bevel gear 232 to start rotating, thereby resetting the first guide rod 215 and making the side wall of the positioning plate 217 no longer contact the inner wall of the bearing. At the same time, it drives the positioning block 313 to rotate, causing the second turntable 310 to rotate. Multiple second sliding grooves 311 are opened at the bottom of the second turntable 310. The sliding matching second sliding column 312 in the groove drives multiple second guide rods 38 to extend outward synchronously, thereby causing the second clamping plate 39 at the end of the second guide rod 38 to clamp the inner wall of the bearing from all sides. Subsequently, the third electric telescopic rod 36 drives the fixed plate 37 and the bearing to move upward until the bearing moves to the cleaning position and stops.

[0030] Subsequently, the cleaning test unit 4 initiates the operation procedure. Multiple fifth electric telescopic rods 411 simultaneously drive the sweeping rods 412 and the blocking plate 415 to move towards the bearing, so that the side wall of the blocking plate 415 contacts the outer wall of the bearing. The sweeping rods 412 extend into the hollow cavity of the bearing without rollers. Then, the third motor 41 starts running, and its output end drives the second gear 42 to rotate, thereby driving the third gear 43, the second ring rack 44, multiple connecting frames 45, the third ring rack 46, and multiple fourth gears 47 to rotate synchronously. This causes the sweeping strips 413 arranged on the outer wall of the sweeping rods 412 to perform circumferential wiping along the arc-shaped raceway. The machine cleans the metal cutting debris and processing dust remaining inside the hollow cavity of the bearing. While the cleaning process continues, the air pump 420 mounted on the outside of the guard plate 15 on one side of the frame 1 continuously outputs negative pressure suction. The input end of the air pump 420 is connected to the slag collection box 418 through the transmission pipe 419, and continuously sucks the waste slag accumulated inside the slag collection box 418 into the removable storage drawer inside the collection box 421 outside the guard plate 15. At the same time, the cleaning block 422 fixed at the bottom of the second annular rack 44 slides back and forth with the rack, continuously scraping off the metal dust attached to the inner wall of the slag collection box 418, preventing the slag suction pipe from being blocked and affecting the negative pressure adsorption effect.

[0031] Subsequently, after the cleaning process of the bearing raceway sidewall is completed, the third electric telescopic rod 36 drives the fixed plate 37 and the bearing to move upward again until the bearing moves to the test position and stops. Multiple fourth electric telescopic rods 48 drive the test rod 49 to extend towards the bearing, smoothly sending the test rod 49, which is equipped with multiple sets of laser sensors 410 at its end, into the bearing cavity. At the same time, the third gear 43 drives the test rod 49 to rotate, so that the detection probe at the front end of the test rod 49 gently fits against the curved raceway sidewall of the bearing. The laser sensor 410 calibrates the perpendicular angle between the probe and the raceway surface in real time. Simultaneously, the control system collects the raw data of the roughness of the inner wall of the raceway, completing a single complete roughness test. After data acquisition is completed, all mechanisms of the equipment control retract and reset in sequence, and the bearing is put back into the housing 22. The chain belt 14 starts again to transport the conveyor plate 21 forward, sending the inspected bearing workpiece out of the inspection station. At the same time, the next set of conveyor plates 21 loaded with the bearing to be inspected is sent into the inspection area. The entire set of automated processes, including workpiece centering, graded height adjustment, inner wall dust cleaning, roughness precision detection, and waste residue negative pressure collection, is repeated in a cycle to realize continuous automated inspection of the roughness of the raceway sidewall of batch unloaded bearings. After the equipment has been in batch production for a long time, the operator can pull out the detachable drawer on the side wall of the collection box 421 to clean the accumulated metal waste inside.

[0032] The above are merely preferred embodiments of the present invention. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention, and these should also be considered within the scope of protection of the present invention. These will not affect the effectiveness of the implementation of the present invention or the practicality of the patent.

Claims

1. A height-adjustable structure for a roughness tester, comprising a frame (1), characterized in that: The frame (1) has guard plates (15) fixedly connected to both sides of the frame (1). Two rotating shafts (13) are rotatably connected to one end of the frame (1). A first motor (12) is fixedly connected to the side wall of the frame (1). The output end of the first motor (12) is fixedly connected to one end of one of the rotating shafts (13). Two chain belts (14) are driven to the outer side walls of the two rotating shafts (13). A positioning mechanism (2) for positioning and clamping the bearing workpiece is provided on the outer side wall of the two chain belts (14). An adjustment mechanism (3) for adjusting the height of the tester is provided at the top of the frame (1). The adjustment mechanism (3) includes two fixed frames (31) fixedly connected to the top of the frame (1). An electric slide groove (32) is provided on the inner side wall of the fixed frame (31). An electric slider (33) is slidably connected to the side wall of the electric slide groove (32). A cleaning and testing mechanism (4) for cleaning and testing the bearing workpiece is provided on the side wall of the electric slider (33).

2. The height adjustment structure of a roughness tester according to claim 1, characterized in that, The positioning mechanism (2) includes multiple transport plates (21) fixedly connected to the top of the chain belt (14). The top of the transport plate (21) is provided with a housing (22). The side wall of the housing (22) is rotatably connected with a first gear (24). The bottom end of the first gear (24) is provided with a first transmission rod (25). The inner side wall of the housing (22) is rotatably connected with a first annular rack (23). The outer side wall of the first gear (24) penetrates the housing (22) and meshes with the outer side wall of the first annular rack (23). The inner side wall of the first annular rack (23) is fixedly connected with multiple first electric telescopic rods (27). The telescopic ends of the multiple first electric telescopic rods (27) are all provided with a first clamping plate (28).

3. The height adjustment structure of a roughness tester according to claim 2, characterized in that, A fixing block (29) is fixedly connected to the inner wall of the transport plate (21). A rotating shaft (210) is rotatably connected to the inner wall of the fixing block (29). A positioning groove (226) is provided at the top of the rotating shaft (210). A first turntable (213) is provided on the outer wall of the rotating shaft (210). A plurality of first sliding grooves (214) are provided at the top of the first turntable (213). A plurality of first guide rods (215) are slidably connected to the top of the fixing block (29). A first sliding column (216) is provided at the top of each of the plurality of first guide rods (215). The outer walls of the plurality of first sliding columns (216) are slidably connected to the inner walls of the plurality of first sliding grooves (214).

4. The height adjustment structure of a roughness tester according to claim 3, characterized in that, Each of the first guide rods (215) has a positioning plate (217) at one end. Each of the positioning plates (217) has two first holes (218) on its sidewall. A first signal sensor (219) is fixedly connected to the inner sidewall of the first hole (218). A first elastic component (220) is fixedly connected to the inner sidewall of the first hole (218). A first protrusion (221) is provided at the other end of the first elastic component (220). A second hole (222) is provided on the sidewall of the positioning plate (217). A second signal sensor (223) is provided on the inner sidewall of the second hole (222). A second elastic component (224) is provided on the inner sidewall of the second hole (222). A second protrusion (225) is fixedly connected to the other end of the second elastic component (224).

5. The height adjustment structure of a roughness tester according to claim 3, characterized in that, The positioning mechanism (2) further includes a second motor (227) fixedly connected to the side wall of the guard plate (15). The output end of the second motor (227) is provided with a sleeve (228). The inner side wall of the sleeve (228) is slidably connected with a rotating rod (229). The side wall of the sleeve (228) is provided with a second electric telescopic rod (230). The telescopic end of the second electric telescopic rod (230) is fixedly connected to the outer side wall of the rotating rod (229). The outer side wall of the rotating rod (229) is fixedly connected with a third bevel gear (231) and a fourth bevel gear (232). The bottom end of the rotating shaft (210) is provided with a second transmission rod (211). The bottom end of the second transmission rod (211) is provided with a second bevel gear (212). The bottom end of the first transmission rod (25) is provided with a first bevel gear (26).

6. The height adjustment structure of a roughness tester according to claim 1, characterized in that, The electric slider (33) is fixedly connected to a cylinder (34) on its side wall. The cylinder (34) is fixedly connected to an adjusting cylinder (35) on its side wall. The adjusting cylinder (35) is fixedly connected to a third electric telescopic rod (36) on its inner side wall. The telescopic end of the third electric telescopic rod (36) is provided with a fixing plate (37). The top of the fixing plate (37) is provided with a sliding frame (314). The outer side wall of the adjusting cylinder (35) is slidably connected to the side wall of the sliding frame (314). The bottom end of the fixing plate (37) is slidably connected with a plurality of second guide rods (38). One end of each of the plurality of second guide rods (38) is provided with a second clamping plate (39).

7. The height adjustment structure of a roughness tester according to claim 6, characterized in that, Each of the second guide rods (38) has a second sliding column (312) at its bottom end. The bottom end of the fixed plate (37) is rotatably connected to a second turntable (310). The bottom end of the second turntable (310) has a plurality of second sliding grooves (311). The inner sidewalls of the plurality of second sliding grooves (311) are slidably connected to the outer sidewalls of the plurality of second sliding columns (312). The bottom end of the second turntable (310) has a positioning block (313).

8. The height adjustment structure of a roughness tester according to claim 6, characterized in that, The cleaning test mechanism (4) includes a third motor (41) fixedly connected to the side wall of an electric slider (33). The output end of the third motor (41) is provided with a second gear (42). The outer wall of the cylinder (34) is slidably connected with a second ring rack (44) and a third ring rack (46). The outer walls of the second ring rack (44) and the third ring rack (46) are provided with multiple connecting frames (45). The outer wall of the cylinder (34) is rotatably connected with multiple fifth electric telescopic rods (411) and multiple fourth electric telescopic rods (48). The outer wall of the fifth electric telescopic rod (411) is provided with a fourth gear (47). The outer walls of the multiple fourth gears (47) mesh with the bottom side wall of the third ring rack (46). The outer wall of the fourth electric telescopic rod (48) is provided with a third gear (43). The outer walls of the multiple third gears (43) mesh with the top side wall of the second ring rack (44).

9. The height adjustment structure of a roughness tester according to claim 8, characterized in that, Each of the fifth electric telescopic rods (411) is equipped with a cleaning rod (412) at its telescopic end. The outer wall of the cleaning rod (412) is equipped with a blocking plate (415). The side wall of the blocking plate (415) is provided with multiple second suction holes (416). The outer wall of the cleaning rod (412) is provided with multiple first suction holes (414). The outer wall of the cleaning rod (412) is provided with a cleaning strip (413). Each of the fourth electric telescopic rods (48) is equipped with a test rod (49) at its telescopic end. The outer wall of the test rod (49) is provided with multiple laser sensors (410). The top of each of the blocking plates (415) is provided with a telescopic tube (417).

10. The height adjustment structure of a roughness tester according to claim 9, characterized in that, A slag collection box (418) is fixedly connected to the outer wall of the cylinder (34). The other end of the telescopic tube (417) passes through the cylinder (34) and is fixedly connected to the slag collection box (418). A second annular rack (44) is slidably connected to the top of the slag collection box (418). A cleaning block (422) is provided at the bottom of the second annular rack (44). The outer wall of the cleaning block (422) is slidably connected to the inner wall of the slag collection box (418). The top of the second annular rack (44) is fixedly connected to the inner wall of multiple connecting frames (45). A collection box (421) is fixedly connected to the outer wall of another guard plate (15). An air pump (420) is provided at the top of the collection box (421). A drawer is detachably connected to the side wall of the collection box (421). A transmission pipe (419) is provided at the bottom of the slag collection box (418). The other end of the transmission pipe (419) is fixedly connected to the input end of the air pump (420).

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