Bearing processing quality inspection device based on laser range finder

Abstract

The invention relates to the technical field of bearing detection devices, and discloses a bearing processing quality inspection device based on a laser range finder, which comprises a platform, an equipment frame and a driving assembly which are fixedly mounted above the platform, a range finding assembly and a composite adjusting mechanism which are arranged in the equipment frame, and a bearing sample arranged at the top of the composite adjusting mechanism, through related structures in a composite adjusting mechanism and a driving assembly, simple adjustment of detection of bearings of different sizes is realized, in the composite adjusting mechanism, an outer diameter clamping plate is in sliding connection with an outer side through groove, an inner diameter clamping frame is in sliding connection with a cross-shaped through groove, and in the driving assembly, a first threaded rod and a second threaded rod are connected through a synchronous transmission box. The first threaded rod drives the sliding distance measuring table to move, the second threaded rod finely adjusts the position of the telescopic air cylinder, the structures are matched, clamp replacement or manual complex adjustment is not needed, the measuring position can be rapidly and accurately adjusted, and the detection efficiency is improved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of bearing detection devices, and in particular to a bearing machining quality inspection device based on a laser range finder. BACKGROUND

[0002] In the prior art, the detection of parameters such as the inner diameter and roundness of bearings usually relies on manual operation of a micrometer or a fixed gauge, which is low in efficiency and susceptible to subjective factors. Some automatic equipment uses contact sensors, which have problems of wear and measurement force interference, and the precision is difficult to guarantee. With the development of laser ranging technology, non-contact measurement is increasingly widely used in industrial quality inspection, but the existing integrated solutions are often complex in structure, and for ring-shaped workpieces such as bearings, it is difficult to complete the positioning, clamping and rapid integrated detection of multiple size parameters of the workpiece efficiently and stably while ensuring high-precision measurement. Therefore, there is an urgent need for a special bearing quality inspection device capable of realizing non-contact, high-efficiency and high-precision integrated detection.

[0003] In the patent with the patent number CN112595249A, a high-efficiency quality inspection device for copper bush bearing machining is disclosed, which comprises a placing disc, the lower end of the placing disc is fixed with a sleeve, the inner cavity of the sleeve is installed with a column, the upper end of the column penetrates through the placing disc, the inner cavity of the column at the position above the placing disc is installed with four groups of positioning contact pieces, a group of mounting holes is arranged above the four groups of positioning contact pieces, a laser range finder is installed in the mounting hole, and an extrusion piece is installed in the cavity of the column at the position in the sleeve, and the output end of the extrusion piece is in sliding contact with the four groups of positioning contact pieces. The high-efficiency quality inspection device for copper bush bearing machining disclosed in the patent realizes the displacement and fixation of the copper bush by controlling the extrusion piece to drive the extension rods of the four groups of positioning contact pieces to extrude the inside of the copper bush, thereby realizing the displacement and fixation of the copper bush, and then detecting the inner ring radius value of the copper bush by the laser range finder, which is convenient and simple to operate, is beneficial to the improvement of work efficiency, and is provided with balls and buffer springs to reduce friction and prevent indentation.

[0004] The prior art has the following defects: It is impossible to adapt to the detection of bearings of different sizes through simple adjustment: the existing bearing detection equipment mainly realizes the adjustment by replacing the clamps or manually adjusting the position of the measuring head when adapting to bearings of different sizes. This method is tedious and time-consuming to operate, depends on human experience, has poor repeatability, prolongs the downtime caused by replacing the clamps, and introduces human errors caused by manual adjustment, which seriously affects the detection efficiency and production rhythm. In addition, the fixed structure cannot realize rapid and continuous automatic measurement of parameters such as the inner diameter and roundness of bearings of different series, resulting in low universality of the equipment, poor production line flexibility, and increased quality inspection cost and time cost of small-batch and multi-specification bearing production.

[0005] It is unable to rotate and lift synchronously during clamping the bearing: the existing equipment usually remains stationary after clamping the bearing, and it is unable to realize the synchronous rotation and lifting action before or during detection, which is mainly limited by the structural design, which affects that the measurement reference surface of the bearing ring cannot be quickly and accurately adjusted to the optimal measurement position under the loaded state, and it is difficult to eliminate the error introduced by the self-weight or clamping deformation, which not only increases the auxiliary positioning time, but also may affect the measurement accuracy and repeatability of the key parameters such as the inner diameter and roundness, and cannot meet the process requirements of high-precision online detection. SUMMARY

[0006] In view of the problems in the prior art that the detection of bearings of different sizes cannot be adapted by simple adjustment, and the rotation and lifting cannot be synchronized during clamping the bearing, a bearing machining quality inspection device based on a laser range finder is provided.

[0007] The bearing machining quality inspection device based on a laser range finder provided by the present application aims to: through the composite adjustment mechanism arranged, stepless, self-adaptive centering and flexible clamping of bearings of different specifications are realized, and the size change can be quickly adapted without replacing the clamp, and at the same time, the mechanism integrates servo driving and rotary support, so that the bearing workpiece can be synchronously and smoothly rotated and lifted after being clamped, so that the measured inner ring is accurately adjusted to the optimal measurement pose of the laser range finder, which not only significantly improves the switching efficiency and equipment versatility of multi-specification production, but also can obtain a stable measurement reference under dynamic conditions, effectively eliminates the clamping deformation interference, and finally realizes efficient, high-precision and fully automatic non-contact detection of the inner diameter and roundness of the bearing.

[0008] The technical scheme of the present application is: a bearing machining quality inspection device based on a laser range finder, comprising a base, a device frame and a driving assembly fixedly installed above the base, a ranging assembly and a composite adjustment mechanism arranged in the device frame, and a bearing sample arranged at the top of the composite adjustment mechanism, the composite adjustment mechanism comprising a fixed table fixedly installed on the inner wall of the device frame, and a rotating assembly arranged in the fixed table. The rotating assembly comprises a rotating block, the outer wall of the rotating block is rotatably connected with the inner wall of the device frame, the outer wall of the rotating block is fixedly connected with a gear ring, the inside of the rotating block is provided with a through cross slot and a plurality of outer side slots, and the lower part of the rotating block is provided with a rotating ring, a rotating ball and a guide assembly. The top of the rotating ring is fixedly connected with a plurality of outer diameter clamping plates, the plurality of outer diameter clamping plates are respectively slidably connected with the plurality of outer side slots, the top of the rotating ball is fixedly connected with an inner diameter clamping frame, and the inner diameter clamping frame is slidably connected with the cross slot.

[0009] By adopting the scheme, the bearing sample is clamped from the outside and the inside by the outer diameter clamping plate and the inner diameter clamping frame respectively, the concentric positioning of the inner and outer rings of the bearing is realized, and a foundation for subsequent measurement is laid; the outer diameter clamping plate is connected through the sliding connection of the outer side through groove, and the inner diameter clamping frame is connected through the sliding connection of the cross through groove, which means that the inner and outer clamping devices also have radial movement ability, which allows the device to quickly adapt and clamp bearing samples of different diameter specifications, and has strong versatility; thus, the rapid positioning, stable clamping, circumferential rotation and size self-adaptation of the bearing sample are realized, and an ideal and reliable foundation is provided for subsequent laser range finder to perform high-precision and omnidirectional size and appearance detection.

[0010] Further, the guide assembly includes a limiting frame fixedly connected to the inner wall of the equipment frame, a rotating column rotatably connected to the top of the limiting frame, a central guide cavity formed in the inner wall of the rotating column, an outer side guide cavity formed between the rotating column and the equipment frame, a rotating ball located inside the central guide cavity, and a rotating ring located inside the outer side guide cavity.

[0011] Further, the bottom of the limiting frame is provided with a central through hole and two outer side through holes, the central through hole is in communication with the central guide cavity, the two outer side through holes are in communication with the outer side guide cavity, and the central through hole and the two outer side through holes are located on the same horizontal line.

[0012] Further, the inner wall of the central guide cavity is slidably connected with a contact block, the contact block is located between the central through hole and the rotating ball, and the diameter of the contact block is greater than the hole diameter of the central through hole; the inner wall of the outer side guide cavity is slidably connected with a contact ring, and the contact ring is located between the two outer side through holes and the rotating ring.

[0013] By adopting the scheme, the independent driving and control of the bearing inner ring clamping and the bearing outer ring clamping are realized through the physical isolation of the central guide cavity and the outer side guide cavity, and the independent setting of the central through hole and the outer side through hole; the entire guide assembly is integrated in the closed or semi-closed space formed by the limiting frame and the rotating column, the structure is compact, the rotating column is rotatably connected with the limiting frame, and the entire clamping system can still rotate as a whole while realizing precise radial guidance, and the rotating motion and the radial adjustment motion do not interfere with each other.

[0014] Further, the distance measuring assembly includes a fixed distance measuring table fixedly connected to the inner wall of the equipment frame, and a sliding distance measuring table slidably connected to the inner wall of the equipment frame, a first distance measuring instrument fixedly connected to the bottom of the fixed distance measuring table, and a second distance measuring instrument fixedly connected to the bottom of the sliding distance measuring table, the detection directions of the first distance measuring instrument and the second distance measuring instrument are oppositely arranged.

[0015] Further, the inner wall of the equipment rack is provided with a first sliding groove, a redundancy groove and a second sliding groove, and the outer wall of the sliding distance measuring platform is in sliding connection with the inner wall of the first sliding groove.

[0016] By adopting the above scheme, the first distance measuring instrument and the second distance measuring instrument are arranged in a core layout, when the bearing sample is placed in the measuring station, the system can read the distance from the two side distance measuring instruments to the corresponding surface of the bearing in real time, and the outer diameter or the thickness size of a specific section of the bearing can be directly, synchronously and non-contact obtained through simple calculation, the measuring principle is clear, and the precision is high; in cooperation with the accurate rotation of the bearing sample under the driving of the composite adjusting mechanism, the distance measuring system can perform multi-point or even continuous scanning measurement on the same circumference of the bearing, and combined with software analysis, not only the diameter of a single section can be obtained, but also the roundness, cylindricity, concentricity and other key form and position tolerances of the bearing can be comprehensively evaluated, and the quality inspection is upgraded from single-point qualification judgment to comprehensive performance analysis.

[0017] Further, the driving assembly comprises a first threaded rod and a second threaded rod rotatably connected to the inner wall of the equipment rack, the first threaded rod is located in the first sliding groove and is in threaded connection with the sliding distance measuring platform, and the second threaded rod is located in the second sliding groove, the pitch of the first threaded rod is twice that of the second threaded rod.

[0018] Further, the first threaded rod and the second threaded rod extend out of the equipment rack and are connected with a synchronous transmission box, the synchronous transmission box is fixedly connected with the outer wall of the equipment rack, the second threaded rod extends out of the synchronous transmission box and is connected with a first driving motor, and the first driving motor is located on the ground platform.

[0019] By adopting the above scheme, through the driving assembly, the synchronous transmission box ensures absolute synchronization, the screw combination with different pitches takes into account the speed and stability, and the common problems of smoothness and precision maintenance of the long-stroke precision sliding table are fundamentally solved, so that the distance measuring assembly can be quickly, smoothly, accurately and non-deviatedly adjusted in position according to the size of the measured bearing, and a perfect precondition for subsequent high-precision measurement is provided, which is a key link for realizing automatic and high-universal detection of the whole equipment.

[0020] Further, the outer wall of the second threaded rod is in threaded connection with a sliding block, the outer wall of the sliding block is in sliding connection with the second sliding groove, a telescopic air cylinder is fixedly installed on the top of the sliding block, the telescopic air cylinder has two output ends, when one of the output ends of the telescopic air cylinder is aligned with the center through hole, the contact block is lifted upward, and the other output end extends into the redundancy groove.

[0021] Further, the driving assembly further comprises a second driving motor fixedly connected to the inner wall of the equipment rack, the output shaft of the second driving motor is sleeved with a driving gear, and the driving gear is in meshing connection with the tooth ring.

[0022] Adopting the above scheme, for the bearing with large outer diameter, the two output ends of the telescopic cylinder simultaneously push the contact ring to move upward in the outer guiding cavity, the contact ring lifts the rotating ring, and the plurality of outer diameter clamping plates fixed on the rotating ring slide upward along the guiding groove and the outer through groove of the rotating block; for the bearing with small outer diameter, one of the output ends lifts the contact block upward, pushes the rotating ball to rise along the central guiding cavity, and the inner diameter clamping frame at the top of the rotating ball slides upward through the cross through groove of the rotating block.

[0023] The beneficial effects of the present application are as follows: 1. Through the related structures in the composite adjusting mechanism and the driving assembly, simple adjustment of bearing detection of different sizes is realized, in the composite adjusting mechanism, the outer diameter clamping plate is in sliding connection with the outer through groove, and the inner diameter clamping frame is in sliding connection with the cross through groove, so that the inner and outer clamping devices can move radially and quickly adapt to bearings of different diameter specifications, in the driving assembly, the first screw rod and the second screw rod are connected by the synchronous transmission box, the pitch of the first screw rod is twice that of the second screw rod, the first driving motor drives, the first screw rod drives the sliding distance measuring table to move quickly and widely, and the second screw rod finely adjusts the position of the telescopic cylinder, and through the cooperation of these structures, the measurement position can be quickly and accurately adjusted without replacing the clamp or manually adjusting complicatedly, the detection efficiency is improved, the universality of the equipment is enhanced, and the quality inspection cost and time cost are reduced.

[0024] 2. Through the composite adjusting mechanism and the driving assembly, synchronous rotation and lifting when clamping the bearing are realized, in the composite adjusting mechanism, the rotating block has a tooth ring on the outer wall, which is in mesh with the driving gear on the output shaft of the second driving motor of the driving assembly, so that the rotating block can be driven to rotate, and then the clamped bearing is rotated, the telescopic cylinder has two output ends, according to the size of the bearing outer diameter, the contact block or the contact ring can be lifted, the rotating ball or the rotating ring is lifted, the inner diameter clamping frame or the outer diameter clamping plate is lifted, and the bearing is lifted, which can quickly and accurately adjust the bearing measurement reference surface to the best measurement position, eliminate the self-weight or clamping deformation error, and improve the measurement accuracy and repeatability.

[0025] 3. Through the cooperation of the distance measuring assembly and the driving assembly, high-precision, high-efficiency and full-automatic non-contact detection is achieved, the first distance meter and the second distance meter of the distance measuring assembly are oppositely arranged and can be used to measure and calculate the bearing outer diameter, the thickness of a specific cross section and other parameters, and can also be used to evaluate the roundness and other form and position tolerances, in the driving assembly, the synchronous transmission box ensures that the two screw rods are synchronous, and the differential pitch screw rod takes into account the speed and stability, so that the distance measuring assembly can quickly and accurately adjust the position, the composite adjusting mechanism can adapt to bearings of different sizes and make them rotate and lift, and through the cooperation of the parts of the whole device, non-contact, high-efficiency and high-precision full-automatic bearing inner diameter and roundness detection is realized, and the online detection process requirements are met. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 is a schematic view of the overall structure of the present application; Figure 2 is a schematic view of the composite adjustment mechanism of the present application; Figure 3 is a schematic view of the fixed platform of the present application; Figure 4 is a schematic view of the rotating ring of the present application; Figure 5 is a schematic view of the rotating assembly of the present application; Figure 6 is a schematic view of the guide assembly of the present application; Figure 7 is a schematic view of the rotating column of the present application; Figure 8 is a schematic view of the contact ring of the present application; Figure 9 is a schematic view of the rotating ring in the lifted state of the present application; Figure 10 is a schematic view of the first and second distance meters in the relative state of the present application; Figure 11 is a schematic view of the rotating ball in the lifted state of the present application.

[0027] In the figure: 1, ground platform; 2, equipment rack; 21, first sliding groove; 22, redundant groove; 23, second sliding groove; 3, distance measuring assembly; 31, fixed distance measuring platform; 32, first distance meter; 33, sliding distance measuring platform; 34, second distance meter; 4, bearing sample; 5, driving assembly; 51, first driving motor; 52, synchronous transmission box; 53, first threaded rod; 54, second threaded rod; 55, second driving motor; 56, driving gear; 6, composite adjustment mechanism; 61, fixed platform; 62, rotating assembly; 621, rotating block; 622, gear ring; 623, cross-shaped through groove; 624, outer side through groove; 63, rotating ring; 631, outer diameter clamping plate; 64, rotating ball; 641, inner diameter clamping frame; 65, guide assembly; 651, limiting frame; 652, central guide cavity; 653, central through hole; 654, outer side guide cavity; 655, outer side through hole; 656, guide groove; 657, contact ring; 658, contact block; 659, rotating column; 66, sliding block; 67, telescopic cylinder. DETAILED DESCRIPTION

[0028] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0029] Reference Figure 1 - Figure 11, provide a kind of bearing processing quality inspection device based on laser range finder, including platform 1, fixed installation on the top of platform 1 equipment frame 2 and drive assembly 5, range-finding component 3 and composite adjusting mechanism 6 being arranged in the inside of equipment frame 2, and bearing sample 4 being arranged in the top of composite adjusting mechanism 6, composite adjusting mechanism 6 includes fixedly installed in the inner wall of equipment frame 2 fixed platform 61, and rotating assembly 62 being arranged in the inside of fixed platform 61.

[0030] With reference to Figure 2 - Figure 5 , rotating assembly 62 includes rotating block 621, the outer wall of rotating block 621 is rotationally connected with the inner wall of equipment frame 2, the outer wall of rotating block 621 is fixedly connected with gear ring 622, the inside of rotating block 621 is provided with through cross slot 623 and multiple outer side grooves 624, rotating ring 63, rotating ball 64 and guide assembly 65 are arranged below rotating block 621;The top of rotating ring 63 is fixedly connected with multiple outer diameter clamping plates 631, multiple outer diameter clamping plates 631 are slidably connected with multiple outer side grooves 624 respectively, the top of rotating ball 64 is fixedly connected with inner diameter clamping frame 641, and inner diameter clamping frame 641 is slidably connected with cross slot 623.

[0031] Specifically, fixed platform 61 is fixedly installed on the inner wall of equipment frame 2, provides stable reference platform, and the center is provided with hole;The outer wall of rotating block 621 is rotationally connected with the inner wall of equipment frame 2, the top passes through the center hole of fixed platform 61, and is processed to be flush with the top surface of fixed platform 61, forms a flat bearing surface.

[0032] By outer diameter clamping plate 631 and inner diameter clamping frame 641 are clamped from outside and inside respectively, the concentric positioning of bearing inner and outer rings is realized, which lays a foundation for subsequent measurement;Outer diameter clamping plate 631 is slidably connected with outer side groove 624, and inner diameter clamping frame 641 is slidably connected with cross slot 623, which means that the inner and outer clamping devices also have radial movement ability, which allows the device to quickly adapt and clamp bearing sample 4 of different diameter specifications, and has strong versatility;Thus, the rapid positioning, stable clamping, circumferential rotation and size self-adaptation of bearing sample 4 are realized, which provides an ideal and reliable basis for subsequent laser range finder to carry out high-precision, all-around size and appearance detection.

[0033] With reference to Figure 6 - Figure 9The guide assembly 65 comprises a limiting frame 651 fixedly connected to the inner wall of the equipment rack 2, the top of the limiting frame 651 is rotationally connected with a rotating column 659, the inner wall of the rotating column 659 is provided with a central guide cavity 652, the rotating column 659 and the equipment rack 2 form an outer side guide cavity 654, the rotating ball 64 is located inside the central guide cavity 652, the rotating ring 63 is located inside the outer side guide cavity 654, the inner wall of the rotating column 659 is further provided with a plurality of guide grooves 656, and a plurality of outer diameter clamping plates 631 are respectively in sliding connection with the guide grooves 656; the bottom of the limiting frame 651 is provided with a central through hole 653 and two outer side through holes 655, the central through hole 653 is in communication with the central guide cavity 652, the two outer side through holes 655 are in communication with the outer side guide cavity 654, and the central through hole 653 and the two outer side through holes 655 are located on the same horizontal line; the inner wall of the central guide cavity 652 is slidably connected with a contact block 658, the contact block 658 is located between the central through hole 653 and the rotating ball 64, and the diameter of the contact block 658 is greater than the hole diameter of the central through hole 653; the inner wall of the outer side guide cavity 654 is slidably connected with a contact ring 657, and the contact ring 657 is located between the two outer side through holes 655 and the rotating ring 63.

[0034] Specifically, the inner wall of the rotating column 659 is provided with a central guide cavity 652, at the same time, the outer wall of the rotating column 659 and the inner wall of the equipment rack 2 naturally form an annular outer side guide cavity 654, the two cavities realize physical isolation and independent guidance of the moving parts, the rotating ball 64 and the inner diameter clamping frame 641 above the rotating ball 64 are contained and guided inside the central guide cavity 652; and the rotating ring 63 and the outer diameter clamping plates 631 connected with the rotating ring 63 are contained and guided inside the outer side guide cavity 654; the lower ends of the plurality of outer diameter clamping plates 631 are respectively embedded in the guide grooves 656 and in sliding connection with the guide grooves 656, when it is necessary to adjust the outer diameter clamping position, the outer diameter clamping plates 631 will move in strict radial straight line along the preset guide grooves 656, ensuring the synchronism and trajectory accuracy of the movement of all clamping plates; the contact block 658 is arranged between the upper side of the central through hole 653 and the lower side of the rotating ball 64, and cannot fall into the through hole, thereby becoming a top rod that slides up and down in the cavity, when the driving element acts upward from the central through hole 653, the contact block 658 is pushed to move upward, thereby lifting the rotating ball 64, and realizing the radial expansion of the inner diameter clamping frame 641; the contact ring 657 is the same.

[0035] The physical isolation of the central guide cavity 652 and the outer guide cavity 654, and the independent arrangement of the central through hole 653 and the outer through hole 655, realize the independent driving and control of the bearing inner ring clamping and the bearing outer ring clamping; the entire guide assembly 65 is integrated in the closed or semi-closed space formed by the limiting frame 651 and the rotating column 659, the structure is compact, the rotating column 659 is rotationally connected with the limiting frame 651, which ensures that the entire clamping system can still rotate as a whole while realizing precise radial guidance, and the rotating motion and the radial adjustment motion do not interfere with each other.

[0036] With reference to Figure 2 - Figure 11 The distance measuring assembly 3 comprises a fixed distance measuring table 31 fixedly connected to the inner wall of the equipment rack 2 and a sliding distance measuring table 33 slidingly connected to the inner wall of the equipment rack 2, the bottom of the fixed distance measuring table 31 is fixedly connected with a first distance measuring instrument 32, the bottom of the sliding distance measuring table 33 is fixedly connected with a second distance measuring instrument 34, and the detection directions of the first distance measuring instrument 32 and the second distance measuring instrument 34 are oppositely arranged; the inner wall of the equipment rack 2 is provided with a first sliding groove 21, a redundant groove 22 and a second sliding groove 23, and the outer wall of the sliding distance measuring table 33 is slidingly connected with the inner wall of the first sliding groove 21.

[0037] Through the core layout of the opposite arrangement of the first distance measuring instrument 32 and the second distance measuring instrument 34, when the bearing sample 4 is placed in the measuring station, the system can read the distance from the two side distance measuring instruments to the corresponding surface of the bearing in real time, and the outer diameter or the thickness size of a specific section of the bearing can be directly, synchronously and non-contact obtained through simple calculation, the measuring principle is clear and the precision is high; in combination with the accurate rotation of the bearing sample 4 driven by the composite adjusting mechanism 6, the distance measuring system can perform multi-point or even continuous scanning measurement on the same circumference of the bearing, and combined with software analysis, not only the diameter of a single section can be obtained, but also the roundness, cylindricity, concentricity and other key form and position tolerances of the bearing can be comprehensively evaluated, and the quality inspection is upgraded from single-point qualification to comprehensive performance analysis.

[0038] With reference to Figure 2 The driving assembly 5 comprises a first threaded rod 53 and a second threaded rod 54 rotationally connected to the inner wall of the equipment rack 2, the first threaded rod 53 is located in the first sliding groove 21 and is threadedly connected with the sliding distance measuring table 33, the second threaded rod 54 is located in the second sliding groove 23, the pitch of the first threaded rod 53 is twice that of the second threaded rod 54; the first threaded rod 53 and the second threaded rod 54 extend out of the equipment rack 2 and are connected with a synchronous transmission box 52, the synchronous transmission box 52 is fixedly connected with the outer wall of the equipment rack 2, the second threaded rod 54 extends out of the synchronous transmission box 52 and is connected with a first driving motor 51, and the first driving motor 51 is seated on the ground platform 1.

[0039] Through the driving assembly 5, the synchronous transmission box 52 ensures absolute synchronization, and the screw combination with different pitches considers speed and stability, so that the common problems of smoothness and precision maintenance of the long-stroke precision sliding table are fundamentally solved, the distance measuring assembly 3 can quickly, smoothly, accurately and non-deviationally adjust the position according to the size of the measured bearing, and a perfect precondition for subsequent high-precision measurement is provided, which is a key link for realizing automatic and high-universal detection of the whole equipment.

[0040] Referring to Figure 2 - Figure 11 The outer wall of the second threaded rod 54 is threadedly connected with a sliding block 66, the outer wall of the sliding block 66 is slidably connected with the second sliding groove 23, the top of the sliding block 66 is fixedly installed with a telescopic air cylinder 67, the telescopic air cylinder 67 has two output ends, when one of the output ends of the telescopic air cylinder 67 is aligned with the center through hole 653, the contact block 658 is lifted upward, and the other output end extends into the redundancy groove 22; the driving assembly 5 further includes a second driving motor 55 fixedly connected to the inner wall of the equipment frame 2, and the output shaft of the second driving motor 55 is provided with a driving gear 56, and the driving gear 56 is engaged with the tooth ring 622.

[0041] Through the telescopic air cylinder 67, for the bearing with a large outer diameter, the two output ends simultaneously push the contact ring 657 to move upward in the outer side guiding cavity 654, the contact ring 657 lifts the rotating ring 63, so that the plurality of outer diameter clamping plates 631 fixed on the rotating ring 63 slide upward along the guiding groove 656 and the outer side through groove 624 of the rotating block 621; for the bearing with a small outer diameter, one of the output ends lifts the contact block 658 upward, and pushes the rotating ball 64 to rise along the center guiding cavity 652, and the inner diameter clamping frame 641 at the top of the rotating ball 64 slides upward through the cross through groove 623 of the rotating block 621.

[0042] The working principle of the application is as follows: When in operation, the bearing sample 4 to be measured is placed on the fixed table 61 at the top of the composite adjusting mechanism 6 by a manual or automatic feeding mechanism, at this time, the bearing is in a free state without being constrained, the system controls the driving assembly 5 to act through the size information obtained by preliminary scanning.

[0043] When the first driving motor 51 operates, the first threaded rod 53 and the second threaded rod 54 are simultaneously driven to rotate through the synchronous transmission box 52, and since the pitches of the two threaded rods are different, the pitch of the first threaded rod 53 is twice that of the second threaded rod 54, so that the transverse relative displacement of the sliding distance measuring table 33 and the sliding block 66 can be accurately controlled.

[0044] For the bearing with large outer diameter, the first drive motor 51 drives the sliding measuring platform 33 to slide in the first sliding groove 21 through the first threaded rod 53, so that the second distance meter 34 moves above the center of the bearing, and the sliding block 66 slides in the second sliding groove 23 through the second threaded rod 54, so that the two output ends of the telescopic cylinder 67 are aligned with the two outer side through holes 655.

[0045] Then the telescopic cylinder 67 is operated, and the two output ends simultaneously push the contact ring 657 to move upward in the outer side guide cavity 654, the contact ring 657 lifts the rotating ring 63, so that the plurality of outer diameter clamping plates 631 fixed on the rotating ring 63 slide upward along the guide groove 656 and the outer side through groove 624 of the rotating block 621, the bearing is externally braced and lifted, the centering and clamping are realized with the outer circle of the bearing as the reference, and in this mode, the inner diameter clamping frame 641 remains in the retracted state and does not contact the bearing.

[0046] Subsequently, the second drive motor 55 is operated, the rotating block 621 and the outer diameter clamping plate 631 associated therewith are driven to rotate synchronously through the engagement of the driving gear 56 and the gear ring 622, so that the clamped bearing sample 4 is accurately rotated around its theoretical center axis, and in the rotating process, the first distance meter 32 above the bearing continuously scans the radial change of the top of the outer ring, and the second distance meter 34 in the bearing hole scans the radial change of the same section on one side of the inner ring; the system synchronously processes the two data, and calculates the outer diameter, inner diameter size and roundness of the bearing and other form and position tolerances.

[0047] For the bearing with small outer diameter, the system is switched to the inner ring positioning mode, the first drive motor 51 drives the sliding measuring platform 33 to slide in the first sliding groove 21 through the first threaded rod 53, so that the second distance meter 34 moves to the position opposite to the first distance meter 32, and the sliding block 66 slides in the second sliding groove 23 through the second threaded rod 54, so that one of the output ends of the telescopic cylinder 67 is aligned with the center through hole 653, and the other output end is located below the redundant groove 22.

[0048] Then the telescopic cylinder 67 is operated, one of the output ends lifts the contact block 658 upward, pushes the rotating ball 64 to rise along the center guide cavity 652, and the inner diameter clamping frame 641 at the top of the rotating ball 64 slides upward through the cross-shaped through groove 623 of the rotating block 621, the bearing is internally braced and lifted, the precise centering and clamping are realized with the inner hole as the reference, in this mode, the outer diameter clamping plate 631 remains in the retracted state and does not contact the bearing; the two distance meters arranged opposite to each other synchronously collect the data of the two sides of the inner ring, and the high-precision inner diameter value is directly obtained through differential calculation.

[0049] After the data acquisition is completed, all actions are performed in reverse order, the bearing stops rotating, the telescopic cylinder 67 is retracted, the outer diameter clamping plate 631 or the inner diameter clamping frame 641 is automatically reset and loosened, the bearing to be detected is taken down, and the whole device returns to the initial standby state, ready for the next quality inspection cycle.

[0050] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and are not limiting. Although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present application, which should be covered in the scope of the claims of the present application.

Claims

1. A bearing processing quality inspection device based on a laser rangefinder, comprising a platform (1), an equipment frame (2) fixedly installed above the platform (1) and a drive assembly (5), a rangefinder assembly (3) and a composite adjustment mechanism (6) disposed inside the equipment frame (2), and a bearing sample (4) disposed on top of the composite adjustment mechanism (6), characterized in that: The composite adjustment mechanism (6) includes a fixed platform (61) fixedly installed on the inner wall of the equipment frame (2), and a rotating component (62) disposed inside the fixed platform (61). The rotating assembly (62) includes a rotating block (621), the outer wall of the rotating block (621) is rotatably connected to the inner wall of the equipment frame (2), a toothed ring (622) is fixedly connected to the outer wall of the rotating block (621), a through cross groove (623) and multiple outer grooves (624) are provided inside the rotating block (621), and a rotating ring (63), a rotating ball (64) and a guide assembly (65) are provided below the rotating block (621). The top of the rotating ring (63) is fixedly connected to a plurality of outer diameter clamping plates (631), and the plurality of outer diameter clamping plates (631) are slidably connected to a plurality of outer side through grooves (624). The top of the rotating ball (64) is fixedly connected to an inner diameter clamping frame (641), and the inner diameter clamping frame (641) is slidably connected to a cross through groove (623).

2. The bearing processing quality inspection device based on a laser rangefinder according to claim 1, characterized in that: The guide assembly (65) includes a limiting frame (651) fixedly connected to the inner wall of the equipment frame (2). A rotating column (659) is rotatably connected to the top of the limiting frame (651). A central guide cavity (652) is opened on the inner wall of the rotating column (659). An outer guide cavity (654) is formed between the rotating column (659) and the equipment frame (2). The rotating ball (64) is located inside the central guide cavity (652). The rotating ring (63) is located inside the outer guide cavity (654). A plurality of guide grooves (656) are also opened on the inner wall of the rotating column (659). A plurality of outer diameter clamping plates (631) are slidably connected to a plurality of guide grooves (656).

3. The bearing processing quality inspection device based on a laser rangefinder according to claim 2, characterized in that: The bottom of the limiting frame (651) is provided with a central through hole (653) and two outer through holes (655). The central through hole (653) is connected to the central guide cavity (652), and the two outer through holes (655) are connected to the outer guide cavity (654). The central through hole (653) and the two outer through holes (655) are located on the same horizontal line.

4. The bearing processing quality inspection device based on a laser rangefinder according to claim 3, characterized in that: The inner wall of the central guide cavity (652) is slidably connected to a contact block (658), which is located between the central through hole (653) and the rotating ball (64), and the diameter of the contact block (658) is larger than the diameter of the central through hole (653). The inner wall of the outer guide cavity (654) is slidably connected to a contact ring (657), which is located between the two outer through holes (655) and the rotating ring (63).

5. The bearing processing quality inspection device based on a laser rangefinder according to claim 1, characterized in that: The ranging component (3) includes a fixed ranging platform (31) fixedly connected to the inner wall of the equipment frame (2) and a sliding ranging platform (33) slidably connected to the inner wall of the equipment frame (2). A first ranging instrument (32) is fixedly connected to the bottom of the fixed ranging platform (31), and a second ranging instrument (34) is fixedly connected to the bottom of the sliding ranging platform (33). The detection directions of the first ranging instrument (32) and the second ranging instrument (34) are set opposite to each other.

6. The bearing processing quality inspection device based on a laser rangefinder according to claim 5, characterized in that: The inner wall of the equipment frame (2) is provided with a first sliding groove (21), a redundant groove (22), and a second sliding groove (23). The outer wall of the sliding distance measuring platform (33) is slidably connected to the inner wall of the first sliding groove (21).

7. The bearing processing quality inspection device based on a laser rangefinder according to claim 6, characterized in that: The drive assembly (5) includes a first threaded rod (53) and a second threaded rod (54) rotatably connected to the inner wall of the equipment frame (2). The first threaded rod (53) is located in the first slide groove (21) and is threadedly connected to the sliding distance measuring stage (33). The second threaded rod (54) is located in the second slide groove (23). The pitch of the first threaded rod (53) is twice that of the second threaded rod (54).

8. The bearing processing quality inspection device based on a laser rangefinder according to claim 7, characterized in that: The first threaded rod (53) and the second threaded rod (54) extend out of the equipment frame (2) and are connected to a synchronous transmission box (52). The synchronous transmission box (52) is fixedly connected to the outer wall of the equipment frame (2). The second threaded rod (54) extends out of the synchronous transmission box (52) and is connected to a first drive motor (51). The first drive motor (51) sits on the platform (1).

9. The bearing processing quality inspection device based on a laser rangefinder according to claim 8, characterized in that: The outer wall of the second threaded rod (54) is threaded with a slider (66). The outer wall of the slider (66) is slidably connected to the second slide groove (23). A telescopic cylinder (67) is fixedly installed on the top of the slider (66). The telescopic cylinder (67) has two output ends. When one output end of the telescopic cylinder (67) is aligned with the central through hole (653), the contact block (658) is lifted upward, and the other output end extends into the redundant groove (22).

10. The bearing processing quality inspection device based on a laser rangefinder according to claim 1, characterized in that: The drive assembly (5) further includes a second drive motor (55) fixedly connected to the inner wall of the equipment frame (2). The output shaft of the second drive motor (55) is fitted with a drive gear (56), which meshes with a gear ring (622).

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