CN120027748A - A comprehensive detection device for ball cage retainer - Google Patents
A comprehensive detection device for ball cage retainer Download PDFInfo
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- CN120027748A CN120027748A CN202510486579.5A CN202510486579A CN120027748A CN 120027748 A CN120027748 A CN 120027748A CN 202510486579 A CN202510486579 A CN 202510486579A CN 120027748 A CN120027748 A CN 120027748A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
- B07C5/02—Measures preceding sorting, e.g. arranging articles in a stream orientating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
- B07C5/04—Sorting according to size
- B07C5/12—Sorting according to size characterised by the application to particular articles, not otherwise provided for
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
- B07C5/36—Sorting apparatus characterised by the means used for distribution
- B07C5/361—Processing or control devices therefor, e.g. escort memory
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The invention relates to the field of cage detection, in particular to a comprehensive detection device for a cage, which comprises a box body, an inner diameter detection module, an outer diameter detection module, a window detection module, a transfer module and three groups of conveying modules, wherein the inner diameter detection module, the outer diameter detection module, the window detection module and the transfer module are arranged in the box body; the left transfer module transfers the left conveying module workpiece to the left detecting table of the inner diameter detecting module to detect the inner diameter and the outer diameter, and transfers the workpiece to the middle conveying module after the completion, and the right transfer module transfers the middle conveying module workpiece to the right detecting table of the window detecting module to detect the window, and transfers the workpiece to the right conveying module after the completion. The inner and outer diameter detection module is provided with an outer diameter detection sensor assembly and an inner diameter detection sensor assembly, and synchronously moves inwards and outwards to contact the wall of the workpiece under the action of the first power assembly and the second power assembly respectively, so that the outer diameter and the inner diameter are measured. The window detection module comprises an umbrella-shaped linkage assembly and a plurality of window detection sensor modules, wherein the umbrella-shaped linkage assembly drives each module to extend into a window corresponding to a workpiece of the right detection table at the same time, and the width of the window is measured.
Description
Technical Field
The invention relates to the field of cage detection, in particular to a comprehensive detection device for a cage.
Background
The ball cage type retainer is used as a key component in mechanical transmission systems of automobiles and the like, and plays an important role in ensuring the stability and the accuracy of transmission. The device is generally in an annular structure, and a plurality of windows are distributed around the device, and are used for precisely positioning and guiding the transmission sphere so as to ensure stable transmission of power.
In the conventional production and detection process, the width detection of a plurality of windows around the ball cage type retainer mostly depends on manual operation. The detection personnel need to measure each window one by means of measuring tools, the process is complicated, errors are easily generated due to human factors, the detection efficiency is extremely low, the detection requirement of mass production is difficult to meet, and meanwhile, the inner diameter and the outer diameter of the ball cage type retainer are detected mainly by manual detection. The manual handheld measuring tool is used for measuring, so that the labor intensity is high, the manual handheld measuring tool is influenced by factors such as manual operation methods, measuring angles and the like, the accuracy and consistency of a measuring result are difficult to guarantee, and the efficiency is far from keeping up with the modern production rhythm. The lagging detection mode consumes a large amount of manpower and material resources, and severely restricts the improvement of production efficiency and the stability of product quality, so that a high-efficiency and accurate comprehensive detection device is needed to improve the current situation.
Disclosure of Invention
The invention provides a comprehensive detection device for a ball cage retainer, which aims to solve the problems in the prior art.
The invention aims at realizing the technical scheme that the comprehensive detection device for the ball cage retainer comprises a box body, an inner diameter detection module, an outer diameter detection module, a window detection module, a transfer module and three groups of conveying modules, wherein the inner diameter detection module, the outer diameter detection module, the window detection module and the transfer module are arranged in the box body;
The left transferring module transfers the workpiece on the left conveying module to a left detecting table of the inner and outer diameter detecting module for inner and outer diameter detection, and the workpiece is transferred to the middle conveying module after the inner and outer diameter detection is finished;
The right transferring module transfers the workpiece on the middle conveying module to a right detecting table of the window detecting module for window detection, and then transfers the workpiece to the right conveying module;
The inner diameter detection module and the outer diameter detection module comprise an outer diameter detection sensor assembly and an inner diameter detection sensor assembly, the two groups of outer diameter detection sensor assemblies synchronously move inwards to contact the outer wall of the workpiece under the action of a first power assembly to measure the outer diameter of the workpiece, and the two groups of inner diameter detection sensor assemblies synchronously move outwards to contact the inner wall of the workpiece under the action of a second power assembly to measure the inner diameter of the workpiece;
the window detection module comprises an umbrella-shaped linkage assembly and a plurality of groups of window detection sensor modules, and the umbrella-shaped linkage assembly drives each window detection sensor module to enable the window detection sensor modules to extend into corresponding windows of the workpiece on the right detection table at the same time, so that the width of the window of the workpiece is measured.
The power assembly I is positioned above the left detection table and comprises a guide rail IV, a sliding block IV and an outer diameter cylinder, the sliding block IV is arranged on the guide rail IV in a sliding manner, an outer diameter shifting block connected with the output end of the outer diameter cylinder is connected with the sliding block IV, the outer diameter detection sensor assembly comprises an outer diameter mounting plate and a plurality of groups of outer diameter detection sensors, the outer diameter mounting plate is connected with the sliding block IV, the outer diameter detection sensors are fixed on the outer diameter mounting plate at intervals, the outer diameter detection sensors are positioned outside a workpiece, and a limiting screw I is arranged at the rear end of the outer diameter mounting plate;
The second power assembly is located below the left detection table and comprises a guide rail five, a sliding block five and an inner diameter cylinder, the sliding block five is arranged on the guide rail five in a sliding mode, an inner diameter shifting block connected with the output end of the inner diameter cylinder is connected with the sliding block five, the inner diameter detection sensor assembly comprises an inner diameter mounting plate and a plurality of groups of inner diameter detection sensors, the inner diameter mounting plate is connected to the sliding block five, the inner diameter detection sensors are fixed on the inner diameter mounting plate at intervals and penetrate upwards to the upper portion of the left detection table, the inner diameter detection sensors are located inside a workpiece, and a limiting screw second is arranged at the rear end of the inner diameter mounting plate.
Further improvement, umbrella-shaped linkage assembly includes motor and a plurality of group connecting rod module, right side detects the platform bottom and is fixed with a plurality of groups of pull rods the pull rod bottom is fixed with the motor flange seat, motor flange seat lower extreme is connected with the motor fixing base through the motor pull rod, the motor is installed on the motor fixing base, the output of motor is connected with the lead screw through the adapting unit, the lead screw top is connected with the lead screw fixed plate, be connected with ball nut pair on the lead screw, ball nut pair outside is fixed with the connecting block, the connecting rod module includes drive connecting rod, drive connecting block, guide rail three and slider three, the drive connecting rod lower extreme rotates the outside of connecting block, drive connecting block lower extreme rotates and connects drive connecting rod upper end, drive connecting block passes right side and detects the platform and upper end rotation is connected on slider three, slider three slides and sets up on the guide rail three, guide rail three is fixed in right side and detects the platform;
The window detection sensor module comprises an upper window detection sensor, a lower window detection sensor and a mounting seat assembly, wherein the mounting seat assembly comprises a mounting seat, a vertical sliding rail and a second adjusting screw, the mounting seat is fixed on a third sliding block, the vertical sliding rail is fixed on the mounting seat, the upper window detection sensor and the lower window detection sensor are respectively and slidably arranged on the corresponding vertical sliding rail, the upper window detection sensor and the lower window detection sensor are arranged in a vertically staggered mode, the second adjusting screw is arranged on the vertical sliding rail, the height of the upper window detection sensor or the lower window detection sensor is adjusted through the corresponding adjusting screw, and elastic detection contacts are arranged on the outer sides of the upper window detection sensor and the lower window detection sensor.
Further improvement, the upper end of left side detects the platform center and is fixed with the interior ball benchmark bowl of location work piece, interior ball benchmark bowl both sides are equipped with photoelectric switch one, interior ball benchmark bowl is equipped with the side through groove that supplies external diameter detection sensor business turn over all around, interior ball benchmark bowl bottom is equipped with the end through groove that supplies internal diameter detection sensor business turn over.
Further improved, a reference positioning block for positioning the workpiece is fixed at the upper end of the center of the right detection table, and two sides of the reference positioning block are provided with photoelectric switches II.
The transfer module further comprises an X-direction linear module, a guide mounting plate, a lifting cylinder, a guide rail assembly, a grabbing mounting plate, a left clamping jaw assembly and a right clamping jaw assembly, wherein the guide mounting plate is mounted on the X-direction linear module and horizontally reciprocates through the X-direction linear module, the lifting cylinder and the guide rail assembly are mounted on the guide mounting plate, the lifting cylinder is connected with the lower end of the guide rail assembly, the lifting cylinder drives a grabbing mounting plate and a movable sliding rail of the guide rail assembly to move along a Z axis, the left clamping jaw assembly and the right clamping jaw assembly are mounted at the lower end of the grabbing mounting plate and respectively comprise a clamping jaw driving cylinder and clamping jaws, the clamping jaw driving cylinders are mounted at the bottom of the grabbing mounting plate and drive three groups of clamping jaws at annular intervals to synchronously stretch out and draw back, a compression guide rod fixing block is further fixed outside the clamping jaw driving cylinders, a spring guide column is slidably arranged in the compression guide rod fixing block, and a claw type limiting pressing plate is fixed at the lower end of the spring guide column, and the claw type limiting pressing plate is arranged in a staggered manner;
An upper limiting block is slidably arranged at the upper end of the guide rail assembly and fixed on the frame, and a limiting screw and a buffer which are opposite to the lifting cylinder are arranged in the center of the lower end of the upper limiting block;
One side of snatch the mounting panel is equipped with proximity switch, is located the compaction guide arm fixed block upper end of proximity switch below and is equipped with crashproof response piece.
The three groups of conveying modules comprise a conveying belt, a power assembly, a photoelectric sensor assembly and a guide assembly, wherein the conveying belt is driven to run through the power assembly, the photoelectric sensor assembly is symmetrically arranged in the middle of the conveying belt, the guide assembly comprises two groups of workpiece guide rods, an adjusting block and a locking handle, the adjusting block is arranged on a frame of the box body in a sliding manner, the guide rods are fixed on the inner sides of the adjusting block, and the locking handle is connected to the adjusting block in a threaded manner;
The middle part, right side carry the module and still include the rejection mechanism, the rejection mechanism includes rejection cylinder, pushing away flitch, unqualified magazine one and unqualified magazine two, the rejection cylinder sets up in the left end of conveyer belt, the pushing away flitch is installed in the output of rejection cylinder and is located the rear side of conveyer belt, unqualified magazine one is located the front side of conveyer belt and just to pushing away the flitch setting, unqualified magazine two is located the lower extreme of unqualified magazine one.
Further improvement, the transport module in left side, middle part still includes positioning mechanism, positioning mechanism is located the right-hand member of conveyer belt, positioning mechanism includes guide rail one, two sets of adjusting screw one, two sets of sliders one, two sets of locating forks and fine setting subassembly, guide rail one is located the right-hand member of conveyer belt, slider one symmetry slides and sets up on guide rail one and through the first adjustment position of continuous adjusting screw, the left end in corresponding slider one is installed to the locating fork, be equipped with the work piece constant head tank in the locating fork, fine setting subassembly includes linear motor subassembly, slider two, guide rail two and link, link connection guide rail one and slider two, slider two slides and sets up on guide rail one, and linear motor subassembly is connected to slider two rear ends.
Compared with the prior art, the comprehensive detection device for the ball cage retainer has the beneficial effects that:
The inner diameter and outer diameter detection module drives the outer diameter detection sensor module and the inner diameter detection sensor module through the power assembly to respectively and simultaneously measure the outer diameter and the inner diameter of the workpiece, the window detection module drives a plurality of groups of window detection sensor modules through the umbrella-shaped linkage assembly to simultaneously extend into each window corresponding to the workpiece to measure the width of the window, automatic detection of the inner diameter and the outer diameter of the ball cage and the width of the window is realized, the detection efficiency is greatly improved, errors caused by manual detection are reduced, the accuracy and the consistency of detection results are ensured, and the product quality and the production efficiency are effectively improved.
Drawings
FIG. 1 is a schematic view of the structure of the inside of the present invention;
FIG. 2 is a schematic view of the structure of the removing case of the present invention;
FIG. 3 is a schematic view of the top view of FIG. 2;
FIG. 4 is a schematic diagram of an inner and outer diameter detecting module according to the present invention;
FIG. 5 is a schematic view of the structure of the interior of FIG. 4;
FIG. 6 is a schematic diagram of a window detection module according to the present invention;
FIG. 7 is a schematic view of the interior of FIG. 6;
FIG. 8 is a schematic diagram of a window detecting sensor module according to the present invention;
FIG. 9 is a schematic diagram of a transfer module according to the present invention;
FIG. 10 is a schematic diagram of a left side conveyor module according to the present invention;
FIG. 11 is a schematic diagram of a middle conveyor module according to the present invention;
FIG. 12 is a schematic diagram of a right side transport module according to the present invention;
FIG. 13 is a schematic view of the exterior of the present invention;
In the figure, 1-box, 11-rack, 12-display screen, 2-inner and outer diameter detection module, 21-left detection table, 211-inner ball reference bowl, 212-photoelectric switch I, 213-side through groove, 214-bottom through groove, 22-outer diameter detection sensor component, 221-outer diameter mounting plate, 222-outer diameter detection sensor, 223-limit screw I, 23-inner diameter detection sensor component, 231-inner diameter mounting plate, 232-inner diameter detection sensor, 233-limit screw II, 24-power component I, 241-guide rail IV, 242-slide block IV, 243-outer diameter cylinder, 244-outer diameter shifting block, 25-power component II, 251-guide rail V, 252-slide block V, 253-inner diameter cylinder, 254-inner diameter shifting block, 3-window detection module, 31-right detection table, 311-reference positioning block, 312-photoelectric switch II, 32-umbrella-shaped linkage assembly, 33-window detection sensor module, 331-window upper detection sensor, 332-window lower detection sensor, 333-mount assembly, 334-mount, 335-vertical slide rail, 336-adjusting screw II, 337-elastic detection contact, 34-motor, 341-pull rod, 342-motor flange seat, 343-motor pull rod, 344-motor fixing seat, 345-lead screw, 346-lead screw fixing plate, 347-ball nut pair, 348-connecting block, 35-connecting rod module, 351-driving connecting rod, 352-driving connecting block, 353-guide rail III, 354-slider three, 4-transfer module, 41-X-direction linear module, 42-guide mounting plate, 43-lifting cylinder, 44-guide rail component, 441-moving slide rail, 442-upper limit block, 443-limit screw, 444-buffer, 45-grasping mounting plate, 451-proximity switch, 452-collision avoidance sensor blade, 46-left clamping jaw component, 47-right clamping jaw component, 481-clamping jaw driving cylinder, 482-clamping jaw, 483-pressing guide rod fixing block, 484-spring guide column, 485-claw type limit pressing plate, 5-conveying module, 51-conveyor belt, 52-power component, 53-positioning mechanism, 531-guide rail one, 532-adjusting screw one, 533-slider one, 534-positioning fork, 535-workpiece positioning groove, 54-photoelectric sensor component, 55-fine adjustment component, 551-linear motor component, 552-slider two, 553-guide rail two, 554-connecting frame, 56-guide component, 561-workpiece guide rod, 562-adjusting block, 563-locking handle, 57-rejecting mechanism, 571-rejecting cylinder, 57572-pushing plate, 573-reject box one, reject box two-reject box pass box.
Detailed Description
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that the terms "mounted," "connected," and "coupled" are to be construed broadly, as well as, for example, fixedly coupled, detachably coupled, or integrally coupled, unless otherwise specifically indicated and defined. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
The technical scheme of the invention is further described below with reference to the embodiments and the accompanying figures 1-13.
Examples
The comprehensive detection device for the ball cage comprises a box body 1, an inner diameter detection module 2, an outer diameter detection module 3, a transfer module 4 and three groups of conveying modules 5, wherein the inner diameter detection module 2, the outer diameter detection module 3 and the transfer module 4 are arranged in the box body 1;
The left transferring module 4 transfers the workpiece on the left conveying module 5 to the left detecting table 21 of the inner and outer diameter detecting module 2 for inner and outer diameter detection, and transfers the workpiece to the middle conveying module 5 after the inner and outer diameter detection is finished;
The right transferring module 4 transfers the workpiece on the middle conveying module 5 to the right detecting table 31 of the window detecting module 3 for window detection, and transfers the workpiece to the right conveying module 5 after finishing;
The inner diameter detection module 2 comprises an outer diameter detection sensor assembly 22 and an inner diameter detection sensor assembly 23, wherein the two groups of outer diameter detection sensor assemblies 22 synchronously move inwards to contact the outer wall of a workpiece under the action of a first power assembly 24 to measure the outer diameter of the workpiece, and the two groups of inner diameter detection sensor assemblies 23 synchronously move outwards to contact the inner wall of the workpiece under the action of a second power assembly 25 to measure the inner diameter of the workpiece;
the window detection module 3 comprises an umbrella-shaped linkage assembly 32 and a plurality of groups of window detection sensor modules 33, and the umbrella-shaped linkage assembly 32 drives each window detection sensor module 33 to extend into a corresponding window of a workpiece on the right detection table 31 at the same time so as to measure the width of the window of the workpiece.
As shown in fig. 1 to 13, the use principle of the present invention is as follows:
The comprehensive detection device mainly comprises a box body, an inner diameter detection module, an outer diameter detection module, a window detection module, a transfer module and three groups of conveying modules, wherein the inner diameter detection module, the outer diameter detection module, the window detection module and the transfer module are arranged in the box body. The left transfer module is responsible for transferring the workpiece on the left transfer module to the left detection table of the inner and outer diameter detection module for inner and outer diameter detection, and then transferring the workpiece to the middle transfer module after completion, and the right transfer module transfers the workpiece on the middle transfer module to the right detection table of the window detection module for window detection, and then transfers the workpiece to the right transfer module after completion. The window detection module drives a plurality of groups of window detection sensor modules by utilizing the umbrella-shaped linkage assembly and simultaneously stretches into each window corresponding to the workpiece to measure the width of the window.
The automatic detection of the inner diameter, the outer diameter and the window width of the ball cage retainer is realized, the detection efficiency is greatly improved, errors caused by manual detection are reduced, the accuracy and the consistency of detection results are ensured, and the product quality and the production efficiency are effectively improved.
As a further preferred embodiment, the first power assembly 24 is located above the left detection table 21 and includes a guide rail four 241, a slider four 242 and an outer diameter cylinder 243, the slider four 242 is slidably disposed on the guide rail four 241, an outer diameter shifting block 244 connected to the output end of the outer diameter cylinder 243 is connected to the slider four 242, the outer diameter detection sensor assembly 22 includes an outer diameter mounting plate 221 and a plurality of sets of outer diameter detection sensors 222, the outer diameter mounting plate 221 is connected to the slider four 242, the outer diameter detection sensors 222 are fixed on the outer diameter mounting plate 221 at intervals, the outer diameter detection sensors 222 are located outside the workpiece, and a limit screw one 223 is disposed at the rear end of the outer diameter mounting plate 221;
The first power component is positioned above the left detection table and consists of a guide rail IV, a sliding block IV and an outer diameter cylinder. When the outer diameter cylinder works, the output end of the outer diameter cylinder stretches out or retracts back to drive the outer diameter shifting block connected with the outer diameter cylinder to move. Because the outer diameter shifting block is connected with the sliding block IV, and the sliding block IV is arranged on the guide rail IV in a sliding way, the sliding block IV can do linear reciprocating motion along the guide rail IV by the motion of the outer diameter shifting block. The outer diameter mounting plate connected with the sliding block four moves synchronously with the sliding block, and a plurality of groups of outer diameter detection sensors fixed on the mounting plate at intervals can synchronously approach or depart from the outer wall of the workpiece, so that the outer diameter of the workpiece is measured. And the rear end of the outer diameter mounting plate is provided with a first limit screw, when the outer diameter mounting plate moves to a certain position, the first limit screw contacts with a corresponding structure in the box body to prevent the outer diameter mounting plate from moving continuously, so that the limiting effect is achieved, and the sensor is ensured not to be damaged due to excessive movement.
The second power assembly 25 is located below the left detection table 21 and comprises a guide rail five 251, a sliding block five 252 and an inner diameter cylinder 253, the sliding block five 252 is slidably arranged on the guide rail five 251, an inner diameter shifting block 254 connected with the output end of the inner diameter cylinder 253 is connected with the sliding block five 252, the inner diameter detection sensor assembly 23 comprises an inner diameter mounting plate 231 and a plurality of groups of inner diameter detection sensors 232, the inner diameter mounting plate 231 is connected to the sliding block five 252, the inner diameter detection sensors 232 are fixed on the inner diameter mounting plate 231 at intervals and upwards penetrate through the upper portion of the left detection table 21, the inner diameter detection sensors 232 are located inside a workpiece, and a limit screw second 233 is arranged at the rear end of the inner diameter mounting plate 231.
The second power component is positioned below the left detection table, and the structure is similar to that of the first power component. Guide rail five, slider five and internal diameter cylinder collaborative work, and the internal diameter cylinder passes through the internal diameter shifting block and drives slider five and slide on guide rail five, and then makes the internal diameter mounting panel that connects on slider five and the internal diameter detection sensor who is fixed in it upwards pass left test bench, contacts the work piece inner wall and carries out the internal diameter measurement. And the rear end of the inner diameter mounting plate is also provided with a second limit screw for limiting excessive movement of the inner diameter mounting plate.
The structure enables the motion of the outer diameter detection sensor and the inner diameter detection sensor to be stable and accurate. The guide rail provides stable guide for the motion of slider, and the cylinder can provide stable and controllable driving force, ensures that the sensor can accurately contact the interior outer wall of work piece and measures, has improved measuring accuracy. Meanwhile, the limit screw is arranged to effectively prevent damage caused by excessive movement of the sensor, stability and reliability of the detection process are guaranteed, service life of the detection equipment is prolonged, and equipment maintenance cost is reduced.
As a further preferred embodiment, the umbrella-shaped linkage assembly 32 includes a motor 34 and a plurality of groups of link modules 35, a plurality of groups of tie rods 341 are fixed at the bottom of the right detection platform 31, a motor flange seat 342 is fixed at the bottom of each tie rod 341, a motor fixing seat 344 is connected at the lower end of each motor flange seat 342 through a motor tie rod 343, the motor 34 is installed on each motor fixing seat 344, a screw rod 345 is connected at the output end of each motor 34 through a connecting component, a screw rod fixing plate 346 is connected at the top of each screw rod 345, a ball nut pair 347 is connected to each screw rod 345, a connecting block 348 is fixed at the outer side of each ball nut pair 347, each link module 35 includes a driving link 351, a driving connecting block 352, a three guide rail 353 and a three guide rail 354, the lower end of each driving link 351 is rotatably connected with the upper end of each driving link 351, each driving connecting block 352 passes through the right detection platform 31 and is rotatably connected with the three guide rail 354, the three guide rail 353 is slidably arranged on the three guide rail 353, and the right detection platform 31 is fixed on the right detection platform 31;
The motor in umbrella-type linkage subassembly is installed on the motor fixing base, and the motor fixing base passes through the motor pull rod and links to each other with the motor flange seat, and the motor flange seat is fixed on the pull rod of right detection platform bottom, ensures that the motor installation is firm. When the motor runs, the output end of the motor drives the screw rod to rotate through the connecting part. The screw rod fixing plate is connected to the top of the screw rod, so that the screw rod fixing plate can fix the screw rod and ensure the stability of the screw rod in the rotation process. The ball nut pair on the screw rod can move up and down along with the rotation of the screw rod, and the connecting block is fixed on the outer side of the ball nut pair, so that the connecting block can also move up and down synchronously.
The lower end of the driving connecting rod in the connecting rod module is rotationally connected to the outer side of the connecting block, and when the connecting block moves up and down, the driving connecting rod can swing circumferentially around the connecting point with the connecting block. The upper end of the driving connecting rod is rotationally connected with the driving connecting block, the driving connecting block penetrates through the right detection table, the upper end of the driving connecting block is rotationally connected to the third sliding block, and the third sliding block is arranged on the third guide rail fixed on the right detection table in a sliding manner. Thus, the swing of the driving connecting rod drives the driving connecting block to slide on the guide rail III, so that the window detection sensor module fixed on the slide block III synchronously moves.
The window detecting sensor module 33 comprises an upper window detecting sensor 331, a lower window detecting sensor 332 and a mounting seat assembly 333, the mounting seat assembly 333 comprises a mounting seat 334, a vertical sliding rail 335 and a second adjusting screw 336, the mounting seat 334 is fixed on a third slider 354, the vertical sliding rail 335 is fixed on the mounting seat 334, the upper window detecting sensor 331 and the lower window detecting sensor 332 are respectively arranged on the corresponding vertical sliding rail 335 in a sliding manner, the upper window detecting sensor 331 and the lower window detecting sensor 332 are arranged in a vertically staggered manner, the second adjusting screw 336 is arranged on the vertical sliding rail 335, the upper window detecting sensor or the lower window detecting sensor height is adjusted through the corresponding second adjusting screw 336, and elastic detecting contacts 337 are respectively arranged on the outer sides of the upper window detecting sensor 331 and the lower window detecting sensor 332.
The window detection sensor module consists of an upper window detection sensor, a lower window detection sensor and a mounting seat assembly. The mounting seat assembly comprises a mounting seat, a vertical sliding rail and a second adjusting screw rod, wherein the mounting seat is fixed on the third sliding block and moves along with the third sliding block. The window upper detection sensor and the window lower detection sensor are respectively arranged on the corresponding vertical sliding rails in a sliding manner, and the height positions of the sensors on the vertical sliding rails can be adjusted through adjusting screws so as to adapt to the heights of the windows of the ball cage retainers with different specifications. And the outer side of the sensor is provided with an elastic detection contact, and when in detection, the elastic detection contact is contacted with the edge of the window, and the elastic deformation is utilized to feed back the width information of the window.
The umbrella-shaped linkage assembly can realize synchronous and accurate driving of a plurality of groups of window detection sensor modules. The accurate control of the motor ensures that the screw rod rotates stably, and further ensures the accuracy of movement of the window detection sensor module. Meanwhile, the height of the sensor can be flexibly adjusted through the second adjusting screw according to the ball cage retainers with different specifications, so that the universality and the adaptability of the detection device are greatly improved. The elastic detection contact point can avoid damage to the workpiece while ensuring the detection accuracy, improve the reliability of the detection result, reduce the possibility of scratch and other defects on the surface of the workpiece due to detection operation, and ensure the product quality.
As a further preferred embodiment, an inner ball reference bowl 211 for positioning the workpiece is fixed at the upper end of the center of the left detection table 21, two photoelectric switches 212 are arranged at two sides of the inner ball reference bowl 211, side through grooves 213 for the outer diameter detection sensor 222 to enter and exit are arranged around the inner ball reference bowl 211, and a bottom through groove 214 for the inner diameter detection sensor 232 to enter and exit is arranged at the bottom of the inner ball reference bowl 211;
The inner ball reference bowl at the upper end of the center of the left detection table is used for accurately positioning the workpiece. The ball cage retainer has a specific spherical structure, the shape of the inner ball reference bowl is matched with the inner ball reference bowl, a workpiece can be placed on the left detection table in a correct posture, and the inner and outer diameter detection sensor can conveniently measure. The photoelectric switches on the two sides detect whether the workpiece is in place or not by emitting and receiving light. When the workpiece is placed on the inner ball reference bowl, the first light of the photoelectric switch is shielded, so that the first light generates signal change, and after the system receives the signal, the workpiece is judged to be in place, and the next detection operation can be performed.
A reference positioning block 311 for positioning the workpiece is fixed at the upper end of the center of the right detection table 31, and two photoelectric switches 312 are arranged on two sides of the reference positioning block 311.
The reference positioning block at the upper end of the center of the right detection table is used for positioning a workpiece during window detection. The shape and the size of the reference positioning block are matched with the specific part of the ball cage retainer, so that the position of the workpiece on the right detection table can be accurately defined. The second photoelectric switches on the two sides detect whether the workpiece is in place or not through shielding and conduction of light rays, and the principle is the same as that of the first photoelectric switch of the left detection table.
The inner ball reference bowl and the reference positioning block ensure the correct position of the workpiece in the detection process, and provide a basis for accurate measurement. Accurate positioning enables the detection sensor to be in contact with the workpiece at a preset position, and accuracy and consistency of measurement data are guaranteed. The photoelectric switch is arranged to realize in-place detection of workpieces in an automatic detection flow without manual intervention, so that the detection efficiency is further improved, errors possibly caused by manual judgment are reduced, and the degree of automation and the stability of the whole detection flow are improved.
As a further preferred embodiment, the transferring module 4 further includes an X-direction linear module 41, a guide mounting plate 42, a lifting cylinder 43, a guide rail assembly 44, a grabbing mounting plate 45, a left clamping jaw assembly 46 and a right clamping jaw assembly 47, wherein the guide mounting plate 42 is mounted on the X-direction linear module 41 and realizes horizontal reciprocating motion through the guide mounting plate, the lifting cylinder 43 and the guide rail assembly 44 are mounted on the guide mounting plate 42, the lifting cylinder 43 is connected with the lower end of the guide rail assembly 44, the grabbing mounting plate 45 is driven by the lifting cylinder 43 to drive a movable sliding rail 441 driving the grabbing mounting plate 45 and the guide rail assembly 44 to move along the Z axis, the left clamping jaw assembly 46 and the right clamping jaw assembly 47 are mounted at the lower end of the grabbing mounting plate 45 and respectively include a clamping jaw driving cylinder 481 and clamping jaws 482, the clamping jaw driving cylinder is mounted at the bottom of the grabbing mounting plate 45 and drives clamping jaws 482 of three groups of annular intervals to synchronously stretch, a compressing fixed block 483 is further fixed at the outer side of the driving cylinder 481 of the left clamping jaw assembly 46, a spring guide column 484 is slidably arranged in the guide bar fixed block 483, the lower end of the spring guide column 484 is fixed with a jaw limit clamp plate 485, and a clamp plate 485 is arranged at the clamp plate and a clamp plate 482 is staggered clamp plate;
The X-direction linear module of the transfer module consists of a motor, a screw rod, a guide rail and other parts. When the motor runs, the screw rod is driven to rotate, and the nut on the screw rod is connected with the guide mounting plate, so that the guide mounting plate horizontally reciprocates on the guide rail. The lifting cylinder and the guide rail assembly are arranged on the guide mounting plate, and when the lifting cylinder works, a piston rod of the lifting cylinder stretches out or retracts to drive the grabbing mounting plate connected with the lifting cylinder to move up and down along the movable sliding rail of the guide rail assembly in the Z-axis direction.
The left clamping jaw assembly and the right clamping jaw assembly are arranged at the lower end of the grabbing mounting plate, and the clamping jaw driving cylinder is arranged at the bottom of the grabbing mounting plate. When the clamping jaw driving cylinder works, the output force drives the three groups of annular-interval clamping jaws to synchronously stretch out and draw back through a specific transmission structure, so that the grabbing and releasing of workpieces are realized. The clamping jaw driving cylinder outside of left clamping jaw subassembly sets up compresses tightly the guide arm fixed block, compresses tightly the inside slip of guide arm fixed block and is equipped with the spring guide post, and spring guide post lower extreme is fixed with the spacing clamp plate of claw formula, snatchs the work piece and places behind the right detection platform, and the spacing clamp plate of claw formula compresses tightly the spacing to the work piece under the spring guide post effect simultaneously.
An upper limiting block 442 is slidably arranged at the upper end of the guide rail assembly 44, the upper limiting block 442 is fixed on the frame 11, and a limiting screw 443 and a buffer 444 which are opposite to the lifting cylinder 43 are arranged in the center of the lower end of the upper limiting block 442;
The upper end of the guide rail component is slidably provided with an upper limiting block, and the upper limiting block is fixed on the frame. When the upper limiting block moves to a certain position along with the guide rail component, the upper limiting block can be contacted with a limiting screw on the frame, so that the guide rail component is prevented from moving upwards continuously, and the limiting effect is achieved. Meanwhile, the buffer is arranged in the center of the lower end of the upper limiting block, and plays a role in buffering when the buffer contacts with the limiting screw, so that impact is reduced, and equipment is protected.
One side of the grabbing mounting plate 45 is provided with a proximity switch 451, and the upper end of a pressing guide rod fixing block 483 positioned below the proximity switch 451 is provided with an anti-collision sensing piece 452.
The proximity switch at the side of the grabbing mounting plate works in cooperation with the anti-collision sensing piece at the upper end of the pressing guide rod fixing block, when the grabbing mounting plate moves downwards to a certain position, the proximity switch detects the anti-collision sensing piece, and if the equipment is abnormal at the moment, the proximity switch can timely send out a signal to prevent the equipment from being damaged due to collision.
The transfer module realizes the accurate transfer of workpieces among different detection stations. The X-direction linear module and the lifting cylinder work cooperatively, so that the clamping jaw assembly can be accurately moved to the position of the workpiece to grasp, and the workpiece is transferred to a specified detection station. The clamping jaw driving cylinder and the claw-type limiting pressing plate are designed, so that the stability of the workpiece in the grabbing and transferring processes is guaranteed, the falling risk of the workpiece is reduced, and the transferring safety is improved. The arrangement of the upper limiting block, the limiting screw, the buffer, the proximity switch and the anti-collision sensing piece effectively prevents the equipment from being collided and damaged in the operation process, prolongs the service life of the equipment, improves the operation efficiency and reliability of the whole detection device, and reduces the maintenance cost of the equipment.
As a further preferred embodiment, the three groups of conveying modules 5 comprise a conveying belt 51, a power assembly 52, a photoelectric sensor assembly 54 and a guide assembly 56, wherein the conveying belt 51 is driven to run by the power assembly 52, the photoelectric sensor assembly is symmetrically arranged in the middle of the conveying belt 51, the guide assembly 56 comprises two groups of workpiece guide rods 561, an adjusting block 562 and a locking handle 563, the adjusting block 562 is slidably arranged on the frame 11 of the box 1, the guide rods 561 are fixed on the inner side of the adjusting block 562, and the locking handle 563 is connected to the adjusting block 562 in a threaded manner;
The three groups of conveying modules comprise conveying belts, power components, photoelectric sensor components and guide components. The power assembly is usually composed of a motor, a speed reducer, a transmission belt and the like, and after the motor is decelerated through the speed reducer, stable torque is output to drive the transmission belt to rotate, so that the transmission belt is driven to operate. The photoelectric sensor assembly is symmetrically arranged in the middle of the conveyor belt, and whether the workpiece passes through the position is detected by emitting and receiving light. When the workpiece shields light, the photoelectric sensor generates signal change, and the system can monitor and control the conveying state of the workpiece according to the signal.
The guide assembly comprises two groups of workpiece guide rods, an adjusting block and a locking handle. The regulating block slides and sets up in the frame of box, and the guide bar is fixed in the inboard of regulating block. The position of the adjusting block on the frame can be adjusted by loosening the locking handle, so that the position of the workpiece guide rod can be adjusted to meet the conveying requirements of workpieces with different specifications. After the position is adjusted, the locking handle is screwed down, and the adjusting block is fixed on the frame.
The middle part, right side transport module 5 still include reject mechanism 57, reject mechanism 57 includes reject cylinder 571, pushing plate 572, unqualified magazine first 573 and unqualified magazine second 574, reject cylinder 571 sets up in the left end of conveyer belt 51, pushing plate 572 installs in the output of rejecting cylinder 571 and is located the rear side of conveyer belt 51, unqualified magazine first 573 is located the front side of conveyer belt and just to pushing plate 572 sets up, unqualified magazine second 574 is located the lower extreme of unqualified magazine first 573.
The middle and right conveying modules are also provided with a rejecting mechanism. When the detection system judges that the workpiece is unqualified, the rejecting air cylinder works, and a piston rod of the rejecting air cylinder stretches out to drive a pushing plate arranged at the output end of the rejecting air cylinder to move forwards. The pushing plate is positioned at the rear side of the conveyor belt, and pushes the unqualified workpieces from the conveyor belt to the unqualified first box positioned at the front side of the conveyor belt, and then falls to the unqualified second box below and enters the collecting box of the rack for collection.
As a further preferred embodiment, the left and middle conveying modules 5 further include a positioning mechanism 53, the positioning mechanism 53 is located at the right end of the conveyor belt 51, the positioning mechanism 53 includes a first guide rail 531, two sets of adjusting screws 532, two sets of sliders 533, two sets of positioning forks 534 and a fine adjustment assembly 55, the first guide rail 531 is located at the right end of the conveyor belt 51, the sliders 533 are symmetrically slidably disposed on the first guide rail 531 and are adjusted by the connected adjusting screws 532, the positioning forks 534 are mounted at the left ends of the corresponding sliders 533, workpiece positioning slots 535 are formed in the positioning forks 534, the fine adjustment assembly 55 includes a linear motor assembly 551, a second slider 552, a second guide rail 553 and a connecting frame 554, the connecting frame 554 connects the first guide rail 531 and the second slider 552, the second slider 552 is slidably disposed on the first guide rail 531, and the rear end of the second slider 552 is connected with the linear motor assembly 551.
The left and middle conveying modules are provided with positioning mechanisms at the right end of the conveying belt. The positioning mechanism comprises a guide rail I, two groups of adjusting screw rods I, two groups of sliding blocks I, two groups of positioning forks and a fine adjustment assembly. The first guide rail is positioned at the right end of the conveyor belt, and the first slide block is symmetrically and slidingly arranged on the first guide rail. The first slider can move left and right on the first guide rail by rotating the first adjusting screw, so that the position of the positioning fork arranged at the left end of the first slider is adjusted. The workpiece positioning groove in the positioning fork is used for accurately positioning the workpiece. The fine tuning assembly comprises a linear motor assembly, a second sliding block, a second guide rail and a connecting frame. The connecting frame is connected with the first guide rail and the second slide block, the second slide block is arranged on the first guide rail in a sliding mode, and the rear end of the second slide block is connected with the linear motor assembly. When the linear motor assembly works, the position of the second sliding block on the first guide rail can be accurately controlled, and then the position of the positioning fork is finely adjusted, so that the positioning requirement of higher precision is met.
The conveying module realizes stable conveying of the workpiece. The power assembly provides stable driving force, ensures the constant-speed operation of the conveyor belt, and enables the workpiece to be smoothly transmitted. The photoelectric sensor component monitors the conveying state of the workpiece in real time and provides basis for automatic control of the whole detection flow. The guide assembly can flexibly adjust the position of the guide rod according to workpieces of different specifications, has a good guide effect on conveying of the workpieces in the feeding and discharging processes, and improves the universality of the conveying module. The reject mechanism effectively separates unqualified products, prevents the unqualified products from entering the subsequent procedures, and improves the product quality. The positioning mechanism can accurately position the workpiece through the first adjusting screw and the fine adjusting component, improves the position accuracy of the subsequent workpiece placed on the detection table, improves the automation degree and the production efficiency of the detection device, and reduces the detection error and the equipment fault risk caused by inaccurate workpiece positioning.
The foregoing describes in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be made in accordance with the concepts of the invention by one of ordinary skill in the art without undue burden. Therefore, all technical solutions which can be obtained by logic analysis, reasoning or limited experiments based on the prior art by the person skilled in the art according to the inventive concept shall be within the scope of protection defined by the claims.
Claims (8)
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202510486579.5A CN120027748A (en) | 2025-04-18 | 2025-04-18 | A comprehensive detection device for ball cage retainer |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202510486579.5A CN120027748A (en) | 2025-04-18 | 2025-04-18 | A comprehensive detection device for ball cage retainer |
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| CN120027748A true CN120027748A (en) | 2025-05-23 |
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| CN202510486579.5A Pending CN120027748A (en) | 2025-04-18 | 2025-04-18 | A comprehensive detection device for ball cage retainer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN120351853A (en) * | 2025-06-12 | 2025-07-22 | 浙江迦得机械有限公司 | Outer ball cage channel indexing gauge |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105698731A (en) * | 2016-04-14 | 2016-06-22 | 上海精智实业有限公司 | Apparatus for detecting inner and outer diameters of ball cage |
| CN107436136A (en) * | 2017-09-07 | 2017-12-05 | 上海精智实业股份有限公司 | A kind of radial direction synchronization testing agency |
| CN209416315U (en) * | 2019-01-31 | 2019-09-20 | 武汉联航机电有限公司 | Calipers inside and outside a kind of external ball cage retainer |
| CN110763580A (en) * | 2019-10-09 | 2020-02-07 | 华中科技大学 | A 360° multi-directional synchronous stretching device and method for flexible devices |
| CN116354080A (en) * | 2023-03-24 | 2023-06-30 | 安徽企铭智能制造有限公司 | A carrier tray for ball cage loading and processing |
| CN221484492U (en) * | 2023-12-07 | 2024-08-06 | 上海麦睿菱测量技术有限公司 | Cage measuring mechanism |
| CN119076418A (en) * | 2024-10-18 | 2024-12-06 | 昆山阿普顿自动化系统有限公司 | A motor stator test line |
-
2025
- 2025-04-18 CN CN202510486579.5A patent/CN120027748A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105698731A (en) * | 2016-04-14 | 2016-06-22 | 上海精智实业有限公司 | Apparatus for detecting inner and outer diameters of ball cage |
| CN107436136A (en) * | 2017-09-07 | 2017-12-05 | 上海精智实业股份有限公司 | A kind of radial direction synchronization testing agency |
| CN209416315U (en) * | 2019-01-31 | 2019-09-20 | 武汉联航机电有限公司 | Calipers inside and outside a kind of external ball cage retainer |
| CN110763580A (en) * | 2019-10-09 | 2020-02-07 | 华中科技大学 | A 360° multi-directional synchronous stretching device and method for flexible devices |
| CN116354080A (en) * | 2023-03-24 | 2023-06-30 | 安徽企铭智能制造有限公司 | A carrier tray for ball cage loading and processing |
| CN221484492U (en) * | 2023-12-07 | 2024-08-06 | 上海麦睿菱测量技术有限公司 | Cage measuring mechanism |
| CN119076418A (en) * | 2024-10-18 | 2024-12-06 | 昆山阿普顿自动化系统有限公司 | A motor stator test line |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN120351853A (en) * | 2025-06-12 | 2025-07-22 | 浙江迦得机械有限公司 | Outer ball cage channel indexing gauge |
| CN120351853B (en) * | 2025-06-12 | 2025-11-21 | 浙江迦得机械有限公司 | An indexing gauge for external ball cage channels |
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