CN113680683B - Vehicle head bowl bearing assembly inclination height detection equipment and detection method thereof - Google Patents
Vehicle head bowl bearing assembly inclination height detection equipment and detection method thereof Download PDFInfo
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- CN113680683B CN113680683B CN202110964489.4A CN202110964489A CN113680683B CN 113680683 B CN113680683 B CN 113680683B CN 202110964489 A CN202110964489 A CN 202110964489A CN 113680683 B CN113680683 B CN 113680683B
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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
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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
- B07C5/36—Sorting apparatus characterised by the means used for distribution
- B07C5/361—Processing or control devices therefor, e.g. escort memory
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- 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
- B07C5/362—Separating or distributor mechanisms
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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
- B07C5/38—Collecting or arranging articles in groups
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
- G01M13/04—Bearings
Abstract
A head bowl bearing assembly inclination height detection device and a detection method thereof belong to the technical field of bearing detection, and comprise a feeding system, a detection system, an inclination height low-grade product rejection tool and an inclination height high-grade product rejection tool; the lower part of the inner side of the test product is provided with a bearing inner ring inclined plane, the upper part of the outer side of the test product is provided with a bearing outer ring inclined plane, the vertical distance between the bearing inner ring inclined plane and the bearing outer ring inclined plane is the inclined height, the end, with the inclined plane, of the test product bearing product, positioned on the inner ring is an NG end face, and the end, without the inclined plane, of the bearing product is an OK end face. The measuring instrument automatically performs function operation on the displacement information of the height position of the contacted inner ring to calculate the tolerance value of the tested product; the unqualified products with too low tolerance value of the oblique height of the tested products are rejected through a rejection mould by the rejection tool; and rejecting unqualified products with too high tolerance values of the oblique heights of the tested products by rejecting the die. The invention has the beneficial effects that: the detection precision is high, and the production efficiency is high.
Description
Technical Field
The invention relates to a vehicle head bowl bearing assembly detection device and a detection method thereof, in particular to a vehicle head bowl bearing assembly inclination height detection device and a detection method thereof, and belongs to the technical field of bearing detection.
Background
The inclination height of the bearing assembly of the high-grade bicycle head bowl is a control point of the bearing different from other deep groove ball bearings or angular contact ball bearings, and is an important technical control point of the high-grade bicycle head bowl, the general technical requirement control range of the bearing is between +0.05 mm and-0.05 mm, products originally provided for customers are manually detected, and due to the objective conditions of high manual detection cost, high misjudgment rate, low production efficiency and the like, the defective rate of about 2 percent exists in qualified products sometimes, so that the customers are not satisfied. In addition, influenced by the epidemic situation, the demand of driving is getting bigger and bigger in the last year, and the original production capacity can not meet the output demand of customers, so in order to improve the output, detection precision and efficiency of products and reduce production cost, I specially designs the automatic detection equipment for the automatic detection of the inclined height of the assembly in the assembly of the head bowl bearing, and the automatic detection function of the machine is realized, the production cost is reduced, the production efficiency is improved, and the industrial intelligent manufacturing is realized while the technical requirements of customers are met.
Disclosure of Invention
The invention aims to provide the equipment and the method for detecting the inclination height of the bearing assembly of the headstock bowl aiming at the defects of manual detection in the prior art, and can achieve the purposes of high detection precision and high production efficiency.
In order to achieve the aim, the invention adopts the technical scheme that: the device comprises a head bowl bearing assembly, a test product, a loading system, a turntable motor and a turntable output conveyor belt, wherein the loading system comprises a loading turntable, a turntable support, a turntable motor and a turntable output conveyor belt;
the lower part of the inner side of the test product is provided with a bearing inner ring inclined plane, the upper part of the outer side of the test product is provided with a bearing outer ring inclined plane, the vertical distance between the bearing inner ring inclined plane and the bearing outer ring inclined plane is an inclined height, the end, with the inclined plane, of the test product bearing product, positioned on the inner ring is an NG end surface, and the end, without the inclined plane, of the bearing product is an OK end surface;
the automatic feeding device also comprises a detection system, wherein the detection system is arranged on the front side of the feeding system; the detection system comprises a detection system bracket, a detection table arranged at the upper end of the detection system bracket and a control cabinet arranged on one side, and further comprises a detection table input conveyor belt, a conveyor belt motor, a sensor, a product processing advancing guide plate, a face recognition tool, a turning tool, a measuring device, an oblique height too low rejection tool, an oblique height too high rejection tool, a fork pulling mechanism and a material frame, wherein the detection table input conveyor belt is arranged on the detection table;
the detection table input conveyor belt is arranged at the rear end of the detection table, the conveyor belt motor is arranged on the outer side of one end of the detection table input conveyor belt and used for driving the detection table input conveyor belt, and the sensor is arranged at the tail end of the detection table input conveyor belt; one end of the turntable output conveyor belt is connected with the feeding turntable, and the other end of the turntable output conveyor belt is connected with the input end of the detection table input conveyor belt; the face recognizing tool, the turning tool, the measuring device, the oblique height too low removing tool and the oblique height too high removing tool are sequentially arranged on the product processing advancing guide plate from back to front, and the output end of the input conveyor belt of the detection table is connected with the face recognizing tool of the product processing advancing guide plate;
the surface recognition tool is arranged in the vertical direction and comprises a surface recognition tool main body and a surface recognition die fixedly arranged at the lower end of the surface recognition tool, and when the working position of the surface recognition tool descends, the surface recognition die can automatically recognize the NG end face or the OK end face;
the turning tool is arranged in the horizontal direction; the turnover tool comprises a turnover tool main body and a product clamping opening fixedly arranged at the front end of the turnover tool, wherein the product clamping opening can clamp a test product;
the measuring device comprises a lower die, a lower die cylinder, an upper die connecting block, a connecting screw and a measuring instrument; the lower die is of an integral structure and comprises a lower die main body and a lower die rod arranged below the lower die main body, the lower die main body comprises a lower die upper raised head, a lower die annular bottom surface and a lower die inclined surface at the side part of the lower die upper raised head, and the end part of the lower die upper raised head is the lower die upper top surface; the detection system bracket is also provided with a lower die supporting plate which is arranged below the detection platform, the annular bottom surface of the lower die main body is supported on the lower die supporting plate, the angle between the inclined surface of the lower die and the axial lead is equal to the angle formed by the inclined surface of the bearing inner ring and the axial lead, and the inclined surface and the axial lead are in a sealing state during detection; the lower die cylinder is arranged below the lower die and is connected with the cylinder through a lower die rod, and the lower die cylinder can drive the lower die to move up and down through the lower die rod;
the upper die comprises an upper die center hole and an upper die bottom cavity, the upper die bottom cavity comprises an upper die bottom cavity bottom surface and an upper die bottom cavity inclined surface, and the upper die is arranged above the lower die; the upper die connecting block is arranged above the upper die and is fixedly connected with the upper die through a connecting screw; the upper die connecting block comprises an upper die connecting block center hole, the upper die connecting block center hole is communicated with the upper die center hole, the upper die connecting block center hole and the upper die center hole are on the same central line, the angle between the upper die bottom cavity inclined plane and the axial lead is equal to the angle formed by the bearing outer ring inclined plane and the axial lead, and the upper die bottom cavity inclined plane and the bearing outer ring inclined plane are in a sealing state during detection;
the measuring instrument is arranged above the upper die connecting block and comprises a measuring instrument main body and a measuring telescopic rod, and the measuring telescopic rod is inserted in a central hole of the upper die connecting block and a central hole of the upper die; the upper die connecting block is fixedly connected with a fixture, and the measuring instrument is positioned by the upper die connecting block; the shape and size of the upper raised head of the lower die are matched with the shape and size of the upper part of the bottom cavity of the upper die, during testing, the height change of a tested product in the vertical direction can be accurately tested by measuring the lower end part of the telescopic rod, and because the change of the inclined height of the tested product and the height change of the tested product in the vertical direction form a fixed proportional relation, the change of the inclined height of the tested product can be determined through the height change of the tested product in the vertical direction;
a test product rejecting die is arranged at the front end of the obliquely-high and excessively-low rejecting tool; the material frame is arranged in front of and below the product processing advancing guide plate;
the shifting fork mechanism comprises a shifting fork mechanism base, a shifting fork, a longitudinal shifting fork cylinder and a transverse shifting fork cylinder, and a plurality of shifting fork openings are formed in the end part of the shifting fork; the shape and the size of the pull fork opening are matched with those of one side of a test product; the shifting fork mechanism base is horizontally arranged in the front and rear directions, a shifting fork mechanism base side plate is arranged outside the shifting fork mechanism base in the vertical direction, the transverse shifting fork cylinder is fixedly arranged on the shifting fork mechanism base side plate, the bottom of the transverse shifting fork cylinder is fixedly connected with the detection table, and the end part of a transmission rod of the transverse shifting fork cylinder is fixedly connected with the middle part of the shifting fork; the shifting fork is arranged above the transmission rod of the shifting fork cylinder, a sliding rail is arranged below the shifting fork, a sliding groove for the front and back expansion of the transmission rod of the shifting fork cylinder is arranged on the shifting fork mechanism base, and the sliding rail is in sliding connection with the sliding groove in the longitudinal direction; the longitudinal shifting fork cylinder is arranged in front of the shifting fork and on the base of the shifting fork mechanism, and a transmission rod of the longitudinal shifting fork cylinder extends backwards and is fixedly connected with the shifting fork; when the transmission rod of the transverse shifting fork cylinder extends forwards, the transmission rod of the shifting fork cylinder can drive the shifting fork mechanism base and the shifting fork to move forwards transversely together, so that the shifting fork opening on the shifting fork can fork a test product at a corresponding position; when the transmission rod of the longitudinal shifting fork cylinder is contracted, the test product can be driven to move forwards or backwards on the shifting fork mechanism base through the shifting fork opening.
An upper telescopic device and a lower telescopic device are fixedly connected above the face recognizing tool and can drive the face recognizing tool to vertically extend and retract upwards and downwards.
The rear side of the turnover tool is fixedly connected with a telescopic rotating device, and the telescopic rotating device can drive the turnover tool to stretch forwards and backwards and turn over up and down.
The shifting fork main body comprises 7 shifting fork openings; the shifting fork mechanism further comprises 2 shifting fork guide pillars and a transverse device, wherein the 2 shifting fork guide pillars are respectively arranged on the outer sides of the front end part and the rear end part of the base side plate of the shifting fork mechanism, one end of each shifting fork guide pillar is fixedly connected with the base side plate of the shifting fork mechanism, and the other end of each shifting fork guide pillar is fixedly connected with the detection table.
The control cabinet is internally provided with an external power supply and a PLC touch screen, the sensor, the face recognition die, the turnover tool, the measuring instrument, the inclined height low-low eliminating tool, the inclined height high-high eliminating tool, the lower die cylinder, the transverse shifting fork cylinder and the longitudinal shifting fork cylinder are electrically connected with the PLC touch screen, and the lower die cylinder, the transverse shifting fork cylinder and the longitudinal shifting fork cylinder are connected with an external high-pressure air source; the PLC touch screen, the turntable motor and the conveyer belt motor are electrically connected with an external power supply.
The product model of the PLC touch screen is Kunlun Tongtai 6070, the product models of the sensors are ohm dragon XS, ZB and RX, and the product model of the measuring instrument is Marbos; the lower die cylinder, the transverse shifting fork cylinder and the longitudinal shifting fork cylinder are all Sudoku cylinders.
The detection method comprises the following testing steps:
(1) loading by using a rotary table: starting a turntable motor, feeding a test product on a feeding turntable through a turntable output conveyor belt, and entering a detection table input conveyor belt;
(2) the product enters the shifting fork range: starting a conveyor belt motor, inputting a test product into a conveyor belt through a detection table to enter a shifting fork range, and transmitting information to a PLC touch screen by a sensor;
(3) the product enters a face recognition tool: starting a transverse shifting fork cylinder and a longitudinal shifting fork cylinder to enable a shifting fork mechanism to move a test product to enter a face recognition tool;
(4) recognizing the surface of the workpiece: the PLC touch screen instructs the face recognition tool to descend, and the height of the position of a test product is detected; the work of the face recognition tool is to confirm that the end, without the inclined plane, of the inner ring of the product is an OK end face and is not turned over, if the end with the NG inclined plane faces upwards, the working position of the face recognition tool is lowered, the face recognition die is automatically identified as an NG end face, and the shifting fork mechanism moves the test product to enter the turning tool;
(5) turning over the tool: the PLC touch screen instructs the turnover tool to work, when a test product appearing in the turnover tool is an NG end face, a product clamping opening at the front end of the turnover tool clamps the test product which is the NG end face forwards and turns over, and an OK product does not turn over;
(6) the measuring device works: starting a lower die cylinder to lift a lower die, lifting a test product into an upper die bottom cavity, enabling the upper top surface of the test product to be in close fit with the bottom surface of the upper die bottom cavity, feeding back displacement information of the height position of the contacted inner ring to a PLC (programmable logic controller) touch screen by using a measuring instrument, performing automatic function operation, and calculating a tolerance value of the test product;
(7) the low-grade eliminating tool works at an oblique height: the unqualified products with too low tolerance value of the oblique height of the tested products are rejected through a rejection mould by the rejection tool;
(8) tool work is rejected to high article to one side: and rejecting unqualified products with an excessively high tolerance value of the tested products by rejecting the die by the obliquely too high product rejecting tool, and transferring the qualified products to a lower station feeding frame.
Before detection, the standard part slant height value of a product to be detected is corrected to be the reference value, and the allowable tolerance value of detection is set to be (+/-h), namely the standard part slant height of the product to be detected is 7.07 +/-0.05 mm; in the testing process, the upper and lower displacement quantities of a product to be tested detected by a measuring instrument at the center position of the standard part on the lower die are(s), and the slant height is the displacement quantity h which is automatically calculated by a trigonometric function; the included angles (alpha) between the inclined planes of the inner ring and the outer ring of the bearing and the central line of the steel ball are both 45 degrees, and the detected tolerance value (h') is as follows:
h" = ±s/1.414(mm)
in the formula: s is the up and down displacement;
h' -oblique high displacement;
and (3) derivation process: h/s = sin α = sin45 ° =0.707
h=0.707s= s/1.414
Table 1 is a statistical table of the test results of 8 test products:
compared with the prior art, the invention has the beneficial effects that:
(1) the detection precision is high, and the internal control standard is +0.04 to-0.04 mm, which can meet the technical requirements of customers;
(2) the production efficiency is high, 2 thousands of machines can be detected by one machine per day, 5 machines can be managed by one person, and the production capacity requirement can be completely met.
Drawings
FIG. 1 is a schematic diagram of: the front view of the invention;
FIG. 2 is a diagram of: the top view of the invention;
FIG. 3 is a diagram of: FIG. 2 is an enlarged view of section A;
FIG. 4 is a diagram of: FIG. 3 is a sectional view taken along line A-A;
FIG. 5 is a diagram of: a test state diagram of the face recognition tool (the test product is in an OK end face state);
FIG. 6 is a diagram of: a test state diagram of the face recognition tool (the test product is in an NG end face state);
FIG. 7 is a diagram of: turning over a main view of the tool;
FIG. 8 is a diagram of: a side view and cross sectional view of the turning tool;
FIG. 9 is a schematic diagram of: an enlarged cross-sectional view of the measuring device (measurement state);
FIG. 10 is a schematic diagram of: enlarged view of part B of FIG. 9;
FIG. 11 is a graph of: enlarged front sectional view of the test product;
FIG. 12 is a diagram of: enlarged view of part C of fig. 11;
FIG. 13 is a graph of: a overlook enlarged view of the test product removing mould;
FIG. 14 is a graph of: enlarged front sectional view of the test product.
Description of reference numerals: the device comprises a test product 1, a bearing inner ring inclined plane 101, a bearing outer ring inclined plane 102, an NG end plane 103, an OK end plane 104, a feeding turntable 2, a turntable bracket 3, a turntable motor 4, a turntable output conveyor belt 5, a detection system bracket 6, a detection table 7, a control cabinet 8, a detection table input conveyor belt 9, a conveyor belt motor 10, a sensor 11, a product processing advancing guide plate 12, a face recognition tool 13, a face recognition tool main body 1301, a face recognition die 1302, a turn-over tool 14, a turn-over tool main body 1401, a product clamping opening 1402, a measuring device 15, a lower die 1501, a lower die main body 1501A, a lower die rod 1501B, a lower die upper raised head 1501C, a lower die annular bottom surface 1501D, a lower die inclined plane 1501E, a lower die air cylinder 1502, an upper die 1503, an upper die center hole 1503A, an upper die bottom cavity B, an upper die bottom cavity inclined plane C, an upper die connecting block, a connecting screw 1505, a measuring instrument 1506, a main body 1506A, a measuring instrument, The device comprises a measuring telescopic rod 1506B, a lower die supporting plate 1507, an oblique height low-crossing eliminating tool 16, an oblique height high-crossing eliminating tool 17, a shifting fork mechanism 18, a shifting fork mechanism base 1801, a shifting fork 1802, a longitudinal shifting fork cylinder 1803, a transverse shifting fork cylinder 1804, a material frame 19, an external power supply 20 and a PLC touch screen 21.
Detailed Description
The invention is further described with reference to the following figures and specific examples, which are not intended to be limiting.
As shown in fig. 1 to 14, the device for detecting the height of a vehicle head bowl bearing assembly is a device for detecting the height of a vehicle head bowl bearing assembly, the device for detecting the height of a vehicle head bowl bearing assembly is a test product 1, as shown in fig. 1 and 2, the device for detecting the height of a test product 1 comprises a feeding system, the feeding system comprises a feeding turntable 2, a turntable support 3, a turntable motor 4 and a turntable output conveyor belt 5, the feeding turntable 2 is arranged on the turntable support 3, the turntable motor 4 is arranged below the turntable and in the turntable support 3, the turntable motor 4 is used for driving the turntable, and the turntable output conveyor belt 5 is arranged on the turntable;
as shown in fig. 14, a bearing inner ring inclined plane 101 is arranged at the lower part of the inner side of the test product 1, a bearing outer ring inclined plane 102 is arranged at the upper part of the outer side of the test product 1, the vertical distance between the bearing inner ring inclined plane 101 and the bearing outer ring inclined plane 102 is an inclined height H, the end of the bearing product of the test product 1, which is positioned at the inner ring inclined plane, is an NG end surface 103, and the end of the bearing product, which is positioned at the inner ring non-inclined plane, is an OK end surface 104;
as shown in fig. 1 to 4, the device further comprises a detection system, wherein the detection system is arranged at the front side of the feeding system; the detection system comprises a detection system bracket 6, a detection table 7 arranged at the upper end of the detection system bracket 6, a control cabinet 8 arranged on one side, a detection table input conveyor belt 9 arranged on the detection table 7, a conveyor belt motor 10, a sensor 11, a product processing advancing guide plate 12, a face recognition tool 13, a turning tool 14, a measuring device 15, an inclined height too low and too high rejection tool 16, an inclined height too high rejection tool 17, a fork pulling mechanism 18 and a material frame 19;
as shown in fig. 2 and 3, the inspection station input conveyor belt 9 is arranged at the rear end of the inspection station 7, the conveyor belt motor 10 is arranged outside one end of the inspection station input conveyor belt 9, the conveyor belt motor 10 is used for driving the inspection station input conveyor belt 9, and the sensor 11 is arranged at the tail end of the inspection station input conveyor belt 9; one end of the turntable output conveyor belt 5 is connected with the feeding turntable 2, and the other end of the turntable output conveyor belt is connected with the input end of the detection table input conveyor belt 9; the face recognizing tool 13, the turning tool 14, the measuring device 15, the oblique height too low removing tool 16 and the oblique height too high removing tool 17 are sequentially arranged on the product processing advancing guide plate 12 from back to front, and the output end of the input conveyor belt 9 of the detection table is connected with the face recognizing tool 13 of the product processing advancing guide plate 12;
as shown in fig. 5 and 6, the surface recognition tool 13 is arranged in a vertical direction, the surface recognition tool 13 includes a surface recognition tool main body 1301 and a surface recognition die 1302 fixedly arranged at the lower end of the surface recognition tool 13, and when the working position of the surface recognition tool 13 is lowered, the surface recognition die 1302 can automatically recognize the NG end surface 103 or the OK end surface 104;
as shown in fig. 7 and 8, the turning tool 14 is arranged in the horizontal direction; the turnover tool 14 comprises a turnover tool main body 1401 and a product clamping opening 1402 fixedly arranged at the front end of the turnover tool 14, wherein the product clamping opening 1402 can clamp a test product 1;
as shown in fig. 4 and 9, the measuring device 15 includes a lower die 1501, a lower die cylinder 1502, an upper die 1503, an upper die connecting block 1504, a connecting screw 1505 and a measuring instrument 1506; the lower die 1501 is of an integral structure, the lower die 1501 comprises a lower die main body 1501A and a lower die rod 1501B arranged below the lower die main body 1501A, the lower die main body 1501A comprises a lower die upper boss 1501C, a lower die annular bottom surface 1501D and a lower die inclined surface 1501E at the side part of the lower die upper boss 1501C, and the end part of the lower die upper boss 1501C is the upper top surface of the lower die 1501; the detection system bracket 6 is also provided with a lower die supporting plate 1507, the lower die supporting plate 1507 is arranged below the detection platform 7, the annular bottom surface of the lower die main body 1501A is supported on the lower die supporting plate 1507, the angle between the lower die inclined plane 1501E and the axial lead is equal to the angle formed by the bearing inner ring inclined plane 101 and the axial lead, and the lower die inclined plane 1501E and the axial lead are in a sealing state during detection; the lower die cylinder 1502 is arranged below the lower die 1501, the lower die 1501 is connected with the cylinder through a lower die rod 1501B, and the lower die cylinder 1502 can drive the lower die 1501 to move up and down through the lower die rod 1501B;
as shown in fig. 9, the upper die 1503 includes an upper die center hole 1503A and an upper die bottom cavity 1503B, the upper die bottom cavity 1503B includes an upper die bottom cavity 1503B bottom surface and an upper die bottom cavity bevel 1503C, and the upper die 1503 is disposed above the lower die 1501; the upper die connecting block 1504 is arranged above an upper die 1503, and the upper die connecting block 1504 is fixedly connected with the upper die 1503 through a connecting screw 1505; the upper die connecting block 1504 comprises an upper die connecting block 1504 central hole, the upper die connecting block 1504 central hole is communicated with an upper die central hole 1503A, the upper die connecting block 1504 central hole and the upper die central hole 1503A are on the same central line, the angle between an upper die bottom cavity inclined plane 1503C and the shaft axis is equal to the angle formed by the bearing outer ring inclined plane 102 and the shaft axis, and the upper die bottom cavity inclined plane 1503C and the bearing outer ring inclined plane 102 are in a sealing state during detection;
as shown in fig. 9 and 14, the measuring instrument 1506 is disposed above the upper die connecting block 1504 and includes a measuring instrument main body 1506A and a measuring telescopic rod 1506B, and the measuring telescopic rod 1506B is inserted into the central hole of the upper die connecting block 1504 and the central hole 1503A of the upper die; the upper mold connecting block 1504 is fixedly connected with a fixture (not shown in the figure), and the measuring instrument 1506 is positioned by the upper mold connecting block 1504; the shape and size of the lower die upper raised head 1501C are matched with the shape and size of the upper portion of the upper die bottom cavity 1503B, during testing, the height change of the test product 1 in the vertical direction can be accurately tested by the lower end portion of the measuring telescopic rod 1506B, and the change of the slant height of the test product 1 and the height change of the test product 1 in the vertical direction are in a fixed proportional relation, so that the change of the slant height of the test product 1 can be determined through the height change of the test product 1 in the vertical direction;
as shown in fig. 13, the test product 1 rejecting mold is arranged at the front end of the inclined high and low rejecting tool 16, and the test product 1 rejecting mold is arranged at the front end of the inclined high and low rejecting tool 17; the material frame 19 is arranged at the front lower part of the product processing advancing guide plate 12;
as shown in fig. 2 and 3, the fork pulling mechanism 18 includes a fork pulling mechanism base 1801, a fork pulling mechanism 1802, a longitudinal fork pulling cylinder 1803 and a transverse fork pulling cylinder 1804, and a plurality of fork pulling openings are formed at the end of the fork pulling mechanism 1802; the shape and the size of the pull fork opening are matched with the shape and the size of one side of the test product 1; the shifting fork mechanism base 1801 is horizontally arranged in the front and rear directions, side plates of the shifting fork mechanism base 1801 are arranged outside the shifting fork mechanism base 1801 in the vertical direction, the transverse shifting fork cylinder 1804 is fixedly arranged on the side plates of the shifting fork mechanism base 1801, the bottom of the transverse shifting fork cylinder 1804 is fixedly connected with the detection platform 7, and the end part of a transmission rod of the transverse shifting fork cylinder 1804 is fixedly connected with the middle part of the shifting fork 1802; the shifting fork 1802 is arranged above a transmission rod of the shifting fork cylinder, a sliding rail (not shown in the figure) is arranged below the shifting fork 1802, a sliding groove (not shown in the figure) for the front and rear expansion of the transmission rod of the shifting fork cylinder is arranged on a shifting fork mechanism base 1801, and the sliding rail is in sliding connection with the sliding groove in the longitudinal direction; the longitudinal shifting fork cylinder 1803 is arranged in front of the shifting fork 1802 and on the shifting fork mechanism base 1801, and a transmission rod of the longitudinal shifting fork cylinder 1803 extends backwards and is fixedly connected with the shifting fork 1802; when the transmission rod of the transverse shifting fork cylinder 1804 extends forwards, the transmission rod of the shifting fork cylinder can drive the shifting fork mechanism base 1801 and the shifting fork 1802 to move forwards transversely together, so that the shifting fork opening on the shifting fork 1802 can fork the test product 1 at the corresponding position; when the transmission rod of the longitudinal shifting fork cylinder 1803 is contracted, the test product 1 can be driven to move forwards or backwards on the shifting fork mechanism base 1801 through the shifting fork opening.
As shown in fig. 5 and 6, an upper stretching device and a lower stretching device (not shown in the drawings, and the upper stretching device and the lower stretching device are related to the prior art and are not described again) are fixedly connected above the surface recognizing tool 13, and the upper stretching device and the lower stretching device can drive the surface recognizing tool 13 to stretch vertically and stretch vertically.
As shown in fig. 7 and 8, a telescopic rotating device (not shown in the drawings, the telescopic rotating device is prior art and not described in detail) is fixedly connected to the rear side of the turning-over tool 14, and the telescopic rotating device can drive the turning-over tool 14 to extend forward and backward and turn over up and down.
As shown in fig. 2 and 3, the yoke 1802 body includes 7 yoke ports; the shifting fork mechanism 18 further comprises 2 shifting fork guide pillars and is transversely arranged, the 2 shifting fork guide pillars are respectively arranged on the outer sides of the front end part and the rear end part of the side plate of the shifting fork mechanism base 1801, one end of each shifting fork guide pillar is fixedly connected with the side plate of the shifting fork mechanism base 1801, and the other end of each shifting fork guide pillar is fixedly connected with the detection table 7.
As shown in fig. 2 to 4, an external power supply 20 and a PLC touch screen 21 are arranged in the control cabinet 8, the sensor 11, the face recognition die 1302, the turnover tool 14, the measuring instrument 1506, the oblique height low-low removing tool 16, the oblique height high-high removing tool 17, the lower die cylinder 1502, the transverse shifting cylinder 1804 and the longitudinal shifting cylinder 1803 are electrically connected to the PLC touch screen 21, and the lower die cylinder 1502, the transverse shifting cylinder 1804 and the longitudinal shifting cylinder 1803 are connected to an external high-pressure air source (not shown in the figures); the PLC touch screen 21, the turntable motor 4 and the conveyor belt motor 10 are electrically connected with an external power supply 20.
As shown in fig. 2 to 4, the PLC touch screen 21 is manufactured by kunlun tomai 6070, the sensor 11 is manufactured by ohilon XS, ZB and RX, and the measuring instrument 1506 is manufactured by mabos; the lower die cylinder 1502, the transverse shifting fork cylinder and the longitudinal shifting fork cylinder are all Sudoku cylinders; the model of the turntable motor 4 is 51G90RGU-CF in Taiwan, and the model of the conveyor motor 10 is 41K25RGN-C in Taiwan.
The detection method comprises the following testing steps:
(1) loading by using a rotary table: as shown in fig. 1 and fig. 2, a turntable motor 4 is started, a test product 1 on a feeding turntable 2 is fed through a turntable output conveyor belt 5 and enters a detection table input conveyor belt 9;
(2) the product enters the range of the shifting fork 1802: as shown in fig. 2 and 3, the conveyor motor 10 is started, the test product 1 enters the range of the shifting fork 1802 through the detection table input conveyor belt 9, and the sensor 11 transmits information to the PLC touch screen 21;
(3) the product enters into the face recognition tool 13: as shown in fig. 3, the transverse shifting fork cylinder and the longitudinal shifting fork cylinder are started, so that the shifting fork mechanism 18 moves the test product 1 into the face recognition tool 13;
(4) the face recognizing tool 13 works: as shown in fig. 3 to 6, the PLC touch screen 21 instructs the face recognizing tool 13 to descend, and detects the height of the position of the test product 1; the face recognizing tool 13 works to confirm that the product is positioned at the end without the inclined plane of the inner ring, namely the OK end face 104 and is not turned over, if the end with the NG inclined plane faces upwards, the working position of the face recognizing tool 13 descends, the face recognizing die 1302 automatically recognizes as the NG end face 103, and the fork shifting mechanism 18 moves the test product 1 to enter the turning tool 14;
(5) turning over tool 14: as shown in fig. 3, 4, 7 and 8, the PLC touch screen 21 instructs the turning-over tool 14 to operate, and when the test product 1 appearing in the turning-over tool 14 is the NG end surface 103, the product clamping opening 1402 at the front end of the turning-over tool 14 clamps the test product 1 which is the NG end surface 103 forward, and turns over, and the OK product is not turned over;
(6) the measuring device 15 works: as shown in fig. 4 and 9, the lower die cylinder 1502 is started to lift the lower die 1501, the test product 1 is lifted into the upper die bottom cavity 1503B, the upper top surface of the test product 1 is closely attached to the bottom surface of the upper die bottom cavity 1503B, and at this time, the measuring instrument 1506 feeds back the displacement information of the contacted height position of the inner ring to the PLC touch screen 21, performs automatic function operation, and calculates the tolerance value of the test product 1;
(7) the low-grade eliminating tool works at an oblique height: as shown in fig. 3, the obliquely-high and excessively-low product rejecting tool rejects unqualified products with excessively low tolerance value of the obliquely-high tested product 1 through a rejecting die;
(8) tool work is rejected to high article to one side: as shown in fig. 3, the obliquely-high product rejecting tool rejects the unqualified product with the obliquely-high tolerance value of the test product 1 through the rejecting die, and the qualified product is transferred to the lower station feeding frame 19.
As shown in fig. 11 and 12, before the detection, the reference value of the slant height of the standard part of the product 1 to be detected is calibrated to be H, and the allowable tolerance value of the detection is set to be ± H, that is, the slant height H of the standard part of the product to be detected is 7.07 ± 0.05 mm; in the testing process, the upper and lower displacement quantities of a product to be tested detected by the measuring instrument 1506 on the center position of the standard piece of the lower die 1501 are s, and the slant height is the displacement quantity h which is automatically calculated by a trigonometric function; the included angles alpha between the inclined planes of the inner ring and the outer ring of the bearing and the central line of the steel ball are both 45 degrees, and the detected tolerance value h' is as follows:
h" = ±s/1.414(mm)
in the formula: s is the up and down displacement;
h' -oblique high displacement;
in fig. 12, the hatched portion is a displaced isosceles right triangle, and the base angle α is 45 °.
And (3) derivation process: h/s = sin α = sin45 ° =0.707
h=0.707s= s/1.414
As shown in figures 11 and 12 of the drawings,
table 1 is a statistical table of the test results of 8 test products 1:
the above-described embodiments are merely preferred embodiments of the present invention, and general changes and substitutions by those skilled in the art within the technical scope of the present invention are included in the protection scope of the present invention.
Claims (9)
1. The device comprises a head bowl bearing assembly, a test product, a loading system, a turntable motor and a turntable output conveyor belt, wherein the loading system comprises a loading turntable, a turntable support, a turntable motor and a turntable output conveyor belt;
the inboard lower part of test product is provided with bearing inner race inclined plane, the outside upper portion of test product is provided with bearing outer race inclined plane, and the vertical distance between bearing inner race inclined plane and the bearing outer race inclined plane is the slant height, and test product bearing product is in inner race inclined plane one end and is NG terminal surface, and the bearing product is in inner race non-inclined plane one end and is OK terminal surface, its characterized in that:
the automatic feeding device also comprises a detection system, wherein the detection system is arranged on the front side of the feeding system; the detection system comprises a detection system support, a detection table arranged at the upper end of the detection system support, a control cabinet arranged on one side, and a detection table input conveyor belt, a conveyor belt motor, a sensor, a product processing advancing guide plate, a face recognition tool, a turning tool, a measuring device, an oblique height too low rejection tool, an oblique height too high rejection tool, a fork pulling mechanism and a material frame which are arranged on the detection table;
the detection table input conveyor belt is arranged at the rear end of the detection table, the conveyor belt motor is arranged on the outer side of one end of the detection table input conveyor belt and used for driving the detection table input conveyor belt, and the sensor is arranged at the tail end of the detection table input conveyor belt; one end of the turntable output conveyor belt is connected with the feeding turntable, and the other end of the turntable output conveyor belt is connected with the input end of the detection table input conveyor belt; the face recognizing tool, the turning tool, the measuring device, the oblique height too low removing tool and the oblique height too high removing tool are sequentially arranged on the product processing advancing guide plate from back to front, and the output end of the input conveyor belt of the detection table is connected with the face recognizing tool of the product processing advancing guide plate;
the surface recognition tool is arranged in the vertical direction and comprises a surface recognition tool main body and a surface recognition die fixedly arranged at the lower end of the surface recognition tool, and when the working position of the surface recognition tool descends, the surface recognition die can automatically recognize the NG end face or the OK end face;
the turning tool is arranged in the horizontal direction; the turnover tool comprises a turnover tool main body and a product clamping opening fixedly arranged at the front end of the turnover tool, wherein the product clamping opening clamps a test product;
the measuring device comprises a lower die, a lower die cylinder, an upper die connecting block, a connecting screw and a measuring instrument; the lower die is of an integral structure and comprises a lower die main body and a lower die rod arranged below the lower die main body, the lower die main body comprises a lower die upper raised head, a lower die annular bottom surface and a lower die inclined surface at the side part of the lower die upper raised head, and the end part of the lower die upper raised head is the lower die upper top surface; the detection system bracket is also provided with a lower die supporting plate which is arranged below the detection platform, the annular bottom surface of the lower die main body is supported on the lower die supporting plate, the angle between the inclined surface of the lower die and the axial lead is equal to the angle formed by the inclined surface of the bearing inner ring and the axial lead, and the inclined surface and the axial lead are in a sealing state during detection; the lower die cylinder is arranged below the lower die, and the lower die is connected with the cylinder through a lower die rod;
the upper die comprises an upper die center hole and an upper die bottom cavity, the upper die bottom cavity comprises an upper die bottom cavity bottom surface and an upper die bottom cavity inclined surface, and the upper die is arranged above the lower die; the upper die connecting block is arranged above the upper die and is fixedly connected with the upper die through a connecting screw; the upper die connecting block comprises an upper die connecting block center hole, the upper die connecting block center hole is communicated with the upper die center hole, the upper die connecting block center hole and the upper die center hole are on the same central line, and the angle between the inclined plane of the upper die bottom cavity and the axial lead is equal to the angle formed by the inclined plane of the bearing outer ring and the axial lead;
the measuring instrument is arranged above the upper die connecting block and comprises a measuring instrument main body and a measuring telescopic rod, and the measuring telescopic rod is inserted in a central hole of the upper die connecting block and a central hole of the upper die; the upper die connecting block is fixedly connected with a fixture, and the measuring instrument is positioned by the upper die connecting block; the shape and size of the upper raised head of the lower die are matched with those of the upper part of the bottom cavity of the upper die, and during testing, the height change of a tested product in the vertical direction can be accurately tested by measuring the lower end part of the telescopic rod;
a test product rejecting die is arranged at the front end of the obliquely-high and excessively-low rejecting tool; the material frame is arranged in front of and below the product processing advancing guide plate;
the shifting fork mechanism comprises a shifting fork mechanism base, a shifting fork, a longitudinal shifting fork cylinder and a transverse shifting fork cylinder, and a plurality of shifting fork openings are formed in the end part of the shifting fork; the shape and the size of the pull fork opening are matched with those of one side of a test product; the shifting fork mechanism base is horizontally arranged in the front and rear directions, a shifting fork mechanism base side plate is arranged outside the shifting fork mechanism base in the vertical direction, the transverse shifting fork cylinder is fixedly arranged on the shifting fork mechanism base side plate, the bottom of the transverse shifting fork cylinder is fixedly connected with the detection table, and the end part of a transmission rod of the transverse shifting fork cylinder is fixedly connected with the middle part of the shifting fork; the shifting fork is arranged above the transmission rod of the shifting fork cylinder, a sliding rail is arranged below the shifting fork, a sliding groove for the front and back expansion of the transmission rod of the shifting fork cylinder is arranged on the shifting fork mechanism base, and the sliding rail is in sliding connection with the sliding groove in the longitudinal direction; the longitudinal shifting fork cylinder is arranged in front of the shifting fork and on the base of the shifting fork mechanism, and a transmission rod of the longitudinal shifting fork cylinder extends backwards and is fixedly connected with the shifting fork.
2. The vehicle head bowl bearing assembly inclination height detection device according to claim 1, characterized in that: an upper telescopic device and a lower telescopic device are fixedly connected above the face recognition tool.
3. The vehicle head bowl bearing assembly inclination height detection device according to claim 1, characterized in that: the rear side of the turnover tool is fixedly connected with a telescopic rotating device.
4. The vehicle head bowl bearing assembly inclination height detection device according to claim 1, characterized in that: the shifting fork main body comprises 7 shifting fork openings; the shifting fork mechanism further comprises 2 shifting fork guide pillars and a transverse device, wherein the 2 shifting fork guide pillars are respectively arranged on the outer sides of the front end part and the rear end part of the base side plate of the shifting fork mechanism, one end of each shifting fork guide pillar is fixedly connected with the base side plate of the shifting fork mechanism, and the other end of each shifting fork guide pillar is fixedly connected with the detection table.
5. The vehicle head bowl bearing assembly inclination height detection device according to claim 1, characterized in that: the control cabinet is internally provided with an external power supply and a PLC touch screen, the sensor, the face recognition die, the turnover tool, the measuring instrument, the inclined height low-low eliminating tool, the inclined height high-high eliminating tool, the lower die cylinder, the transverse shifting fork cylinder and the longitudinal shifting fork cylinder are electrically connected with the PLC touch screen, and the lower die cylinder, the transverse shifting fork cylinder and the longitudinal shifting fork cylinder are connected with an external high-pressure air source; the PLC touch screen, the turntable motor and the conveyer belt motor are electrically connected with an external power supply.
6. The vehicle head bowl bearing assembly inclination height detection device as claimed in claim 5, wherein: the product model of the PLC touch screen is Kunlun Tongtai 6070, the product models of the sensors are ohm dragon XS, ZB and RX, and the product model of the measuring instrument is Marbos; the lower die cylinder, the transverse shifting fork cylinder and the longitudinal shifting fork cylinder are all Sudoku cylinders.
7. The detection method of the vehicle head bowl bearing assembly slant height detection device according to claim 1, characterized in that: the detection method comprises the following testing steps:
(1) loading by using a rotary table: starting a turntable motor, feeding a test product on a feeding turntable through a turntable output conveyor belt, and entering a detection table input conveyor belt;
(2) the product enters the shifting fork range: starting a conveyor belt motor, inputting a test product into a conveyor belt through a detection table to enter a shifting fork range, and transmitting information to a PLC touch screen by a sensor;
(3) the product enters a face recognition tool: starting a transverse shifting fork cylinder and a longitudinal shifting fork cylinder to enable a shifting fork mechanism to move a test product to enter a face recognition tool;
(4) recognizing the surface of the workpiece: the PLC touch screen instructs the face recognition tool to descend, and the height of the position of a test product is detected; the work of the face recognition tool is to confirm that the end, without the inclined plane, of the inner ring of the product is an OK end face and is not turned over, if the end with the NG inclined plane faces upwards, the working position of the face recognition tool is lowered, the face recognition die is automatically identified as an NG end face, and the shifting fork mechanism moves the test product to enter the turning tool;
(5) turning over the tool: the PLC touch screen instructs the turnover tool to work, when a test product appearing in the turnover tool is an NG end face, a product clamping opening at the front end of the turnover tool clamps the test product which is the NG end face forwards and turns over, and an OK product does not turn over;
(6) the measuring device works: starting a lower die cylinder to lift a lower die, lifting a test product into an upper die bottom cavity, enabling the upper top surface of the test product to be in close fit with the bottom surface of the upper die bottom cavity, feeding back displacement information of the height position of the contacted inner ring to a PLC (programmable logic controller) touch screen by using a measuring instrument, performing automatic function operation, and calculating a tolerance value of the test product;
(7) the low-grade eliminating tool works at an oblique height: the unqualified products with too low tolerance value of the oblique height of the tested products are rejected through a rejection mould by the rejection tool;
(8) tool work is rejected to high article to one side: and rejecting unqualified products with an excessively high tolerance value of the tested products by rejecting the die by the obliquely too high product rejecting tool, and transferring the qualified products to a lower station feeding frame.
8. The detection method of the vehicle head bowl bearing assembly slant height detection device according to claim 7, characterized in that: before detection, the standard part slant height value of a product to be detected is corrected to be the reference value, and the allowable tolerance value of detection is set to be (+/-h), namely the standard part slant height of the product to be detected is 7.07 +/-0.05 mm; in the testing process, the upper and lower displacement quantities of a product to be tested detected by a measuring instrument at the center position of the standard part on the lower die are(s), and the slant height is the displacement quantity h which is automatically calculated by a trigonometric function; the included angles (alpha) between the inclined planes of the inner ring and the outer ring of the bearing and the central line of the steel ball are both 45 degrees, and the detected tolerance value (h') is as follows:
h" = ±s/1.414(mm)
in the formula: s is the up and down displacement;
h' -oblique high displacement.
9. The detection method of the vehicle head bowl bearing assembly slant height detection device according to claim 8, characterized in that: the upper and lower displacement amounts(s) of 8 test products numbered from 1 to 8 detected by the measuring instrument are +0.056, +0.042, +0.028, -0.014, -0.028, -0.042, +0.085, -0.099; the oblique high displacement (h') of the upper and lower displacement(s) of 8 test products detected by the measuring instrument are respectively +0.04, +0.03, +0.02, -0.01, -0.02, -0.03, +0.06 and-0.07, wherein the oblique high displacement of the test products numbered from 1 to 6 is within an allowable tolerance range, the oblique high displacement of the test product numbered 7 is an excessively high defective product, and the oblique high displacement of the test product numbered 8 is an excessively low defective product.
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