CN209356200U

CN209356200U - A kind of scarce ball detection device of bearing

Info

Publication number: CN209356200U
Application number: CN201822218768.2U
Authority: CN
Inventors: 王利强
Original assignee: Huzhou Hualong Intelligent Technology Co Ltd
Current assignee: Huzhou Hualong Intelligent Technology Co Ltd
Priority date: 2018-12-27
Filing date: 2018-12-27
Publication date: 2019-09-06
Anticipated expiration: 2028-12-27

Abstract

The utility model provides a kind of scarce ball detection device of bearing, including device noumenon, described device ontology is connected with external PLC industrial personal computer and receives the control of the PLC industrial personal computer, described device ontology includes pedestal, elevating mechanism, guiding mechanism, testing agency and load carrier, the elevating mechanism is located at the top rear of the pedestal, the guiding mechanism is located at the front of the elevating mechanism, the guiding mechanism is connected with the elevating mechanism, the testing agency is connected with the elevating mechanism, the testing agency is located at the front of the guiding mechanism, the load carrier is located at the top nose of the pedestal, the utility model goes to detect in bearing to be detected whether installed ball on opposite position respectively by several detection probes of detector bottom, therefore, it is determined that whether the bearing to be detected lacks ball , it is easy to operate, it is easy to use, the accuracy rate of detection is improved, ensure that the product quality of bearing.

Description

A kind of scarce ball detection device of bearing

Technical field

The utility model relates to industrial detection equipment technical field, in particular to a kind of bearing lacks ball detection device.

Background technique

Rolling bearing is that the sliding friction between axis and axle bed by operating becomes rolling friction, to reduce the one of loss The accurate mechanical organ of kind.Rolling bearing is generally made of inner ring, outer ring, ball and four part of retainer.The effect of inner ring is Merge with axis matching and rotates together with the axis；Outer ring effect is matched with bearing block, and dominating role is played；Retainer can make ball equal Even distribution, guidance ball have rotated lubricating action；Ball is that ball is uniformly distributed in inner ring and outer ring by means of retainer Between, shape size and quantity directly affect service performance and the service life of rolling bearing.

In the Production of bearing line of mechanization, the problem of there is ball neglected loadings is also to lack ball.Lacking ball detection is bearing In assembling process together important detection process, it is therefore an objective to enable lack ball bearing be picked and reject in time, thus no longer into The subsequent assembly manipulation of row.Scarce ball detection in the prior art passes through inspection mostly in such a way that vacuum suction detects throughput It surveys throughput to come out the bearing sorting of scarce ball, if bearing lacks ball, throughput can be bigger, and identification difficulty is larger, is easy Missing inspection or the erroneous detection for causing scarce ball bearing, become small especially with bearing, are more difficult to lack ball axis in aforementioned manners The throughput difference between qualified bearing is held, detection efficiency is lower, and the quality of bearing is difficult to ensure.

Utility model content

(1) the technical issues of solving

To solve the above-mentioned problems, the utility model provides a kind of scarce ball detection device of bearing, passes through detector bottom Several detection probes go to detect in bearing to be detected whether ball has been installed on opposite position respectively, therefore, it is determined that should be to Detect whether bearing lacks ball, it is easy to operate, it is easy to use, the accuracy rate of detection is improved, ensure that the product quality of bearing.

(2) technical solution

A kind of scarce ball detection device of bearing, including device noumenon, described device ontology are connected with external PLC industrial personal computer And receiving the control of the PLC industrial personal computer, described device ontology includes pedestal, elevating mechanism, guiding mechanism, testing agency and holds Mounted mechanism, the elevating mechanism are located at the top rear of the pedestal, and the guiding mechanism is located at the front of the elevating mechanism, The guiding mechanism is connected with the elevating mechanism, and the testing agency is connected with the elevating mechanism, the detection machine Structure is located at the front of the guiding mechanism, and the load carrier is located at the top nose of the pedestal, and the load carrier is located at The underface of the testing agency.

Further, the elevating mechanism include the first support column, the second support column, crossbeam, lifting cylinder, lifter plate and Alarm lamp, the top rear two positioned at the pedestal of first support column and second support column difference horizontal symmetrical One end of side, first support column connects the pedestal, and the other end of first support column connects the bottom of the crossbeam Side, one end of second support column also connect the pedestal, and the other end of second support column connects the crossbeam The bottom other side, the top of the crossbeam it is placed in the middle be fixedly installed with the lifting cylinder, the lifting cylinder and the PLC work The control signal output of control machine is electrical connected, and the elevating lever of the lifting cylinder through the crossbeam and extends downwardly, described The end of the elevating lever of lifting cylinder connects the lifter plate, and the lifter plate is located at first support column and second described Between dagger, the top rear of the lifter plate connects the elevating lever of the lifting cylinder, and the top nose of the lifter plate occupies In be equipped with the alarm lamp, the bottom front of the lifter plate is equipped with the testing agency, and the testing agency is located at described The side of the underface of alarm lamp, the lifter plate connects the guiding mechanism.

Further, the guiding mechanism includes the first guide post, the second guide post, the first guide pad and the second guiding The top center two sides set on the pedestal of block, first guide post and the second guide post horizontal symmetrical, described One guide post and second guide post are located at the front of first support column and second support column, first guiding Placed in the middle on the medial surface of column to be equipped with the first vertical guide groove, the medial surface of second guide post is equipped with vertical second Guide groove, first guide groove is identical and horizontal opposite with the second guiding slot length, the inside of first guide groove It is slidably embedded with first guide pad, one end of first guide pad is located at the inside of first guide groove, institute The other end for stating the first guide pad connects the side of the lifter plate, and the inside of second guide groove is slidably embedded State the second guide pad, one end of second guide pad is located at the inside of second guide groove, second guide pad it is another One end connects the other side of the lifter plate.

Further, the testing agency includes attachment base and detector, and the detector is removable with the attachment base That unloads is connected, and the attachment base includes attachment base ontology and connection base, top and the lifting of the attachment base ontology The bottom of plate is connected, the bottom of the attachment base ontology it is placed in the middle equipped with the connection base being recessed inwardly, the connection Base is electrical connected with the alarm lamp, the detector include detector ontology, connecting male, conductive plate, detection probe and Conductive cap, the connecting male top positioned at the detector ontology placed in the middle, the connecting male and the connection base It for dismountable bolt and is electrical connected, the conductive plate is horizontally placed on the inside of the detector ontology, several detections The uniform circumferential bottom set on the detector ontology of probe difference, one end of the every detection probe is located at the detection The other end of the lower section of head ontology, the every detection probe through the bottom of the detector ontology and the conductive plate and is stretched The upper surface of described conductive plate out, the other end for stretching out in the detection probe of the conductive plate connects the conductive cap, several The conductive cap is electrical connected with the connecting male respectively, and under original state, the detection probe is due to gravity freedom It falls so that the conductive cap is in contact with the conductive plate and is electrical connected to form several conductive branch being in parallel, Ruo Gansuo The position for stating detection probe is corresponding with the position of several balls in bearing to be detected respectively；The detection probe selects insulation Material is made.

Further, the load carrier includes bearing seat, loading plate, bearing limited post and washer, the carrying seat In the top nose of the pedestal, the loading plate is located at the top of the bearing seat, and the bearing limited post is placed in the middle to be set to The top of the loading plate, the height of the bearing limited post are no more than the height of bearing to be detected, the bearing limited post The together circle center of the center of circle and several detection probes is on same vertical line, and the washer is set in the bearing limited post Outside, the internal diameter of the washer is identical as the diameter of the bearing limited post, and the height of the washer is no more than axis to be detected The height held；The top of the loading plate can wrap up flexible material.

Further, described device ontology is powered by external power supply, and external power supply is the PLC industrial personal computer and the lifting Cylinder provides operating voltage, under original state, the external power supply, the alarm lamp, the connection base, connection public affairs Seat, several conductive caps and the conductive plate constitute closed circuit.

Further, the lifting cylinder selects the mini cylinder of MA stainless steel, and the lifting cylinder receives the PLC work The control signal of control machine output simultaneously drives its elevating lever to make stretching motion, so that the testing agency is pressed to the carrying machine The upper surface of structure.

Further, the alarm lamp selects monochromatic LED indicator light, and the alarm lamp is lit in the initial state, And when all conductive caps are separated with the conductive plate, the alarm lamp extinguishes.

Further, according to the bearing to be detected of different model, the detector is corresponding to be arranged several models, with Guarantee that the position of several detection probes is corresponding with the position of several balls in bearing to be detected always, and different model The detector keep the connecting male constant.

Further, according to the bearing to be detected of different model, the washer is corresponding to be arranged several models, with set It is located at outside the bearing limited post and fits with the inner ring internal diameter of bearing to be detected.

(3) beneficial effect

The utility model provides a kind of scarce ball detection device of bearing, includes bearing seat, loading plate, axis by load carrier Limited post and washer are held, the inner ring alignment bearings limited post of bearing to be detected is put into, according to the bearing to be detected of different model, The washer of corresponding model can be covered in the outside of bearing limited post in advance, then put on bearing to be detected, make bearing to be detected Inner ring is just bonded, and is avoided bearing generation movement to be detected in detection process and is influenced the accuracy rate of detection and the effect of detection Rate, can meet the detection demand of different model bearing, and flexible material is wrapped up above loading plate, can avoid the bottom of bearing to be detected Rigidity friction occurs for portion and the surface of loading plate, to influence the appearance of bearing to be detected；It include first by elevating mechanism Dagger, the second support column, crossbeam, lifting cylinder, lifter plate and alarm lamp, when loading ability of bearing to be detected finishes, in PLC industrial personal computer The running parameter of end setting lifting cylinder, lifting cylinder driving elevating lever extend downwards, make the detection machine of lifter plate and its bottom Structure falls simultaneously, will test and is pressed in above load carrier to complete to treat the detection for detecting bearing under mechanism, easy to operate, makes With convenient, high degree of automation；It is led by guiding mechanism including the first guide post, the second guide post, the first guide pad and second To block, when the elevating lever of lifting cylinder drives the testing agency of lifter plate and its bottom to fall, the guide pad of lifter plate two sides It is moved synchronously along guide groove, the guide pad of lifter plate two sides and the elevating lever of lifting cylinder form three-legged structure, so that rising Drop plate is able to maintain stabilization in lifting process, and the testing agency for avoiding end shakes and influence the accuracy rate and inspection of detection The efficiency of survey, improves stability and reliability；It include attachment base and detector by testing agency, detector and attachment base phase It is spirally connected, dismounts and replace all very simply, the detector precession of different model can be chosen according to the bearing to be detected of different model It is very convenient inside attachment base, the detection demand of different model bearing can be met；Include detector ontology by detector, connect Connect male seat, conductive plate, detection probe and conductive cap, when not detected under original state, detection probe due to gravity and from By falling, so that conductive cap falls in the upper surface of conductive plate, to lead in external power supply-alarm lamp-connection base-connecting male- Closed circuit is formed between electric cap-conductive plate, alarm lamp is lit, and when starting detection, bearing to be detected is pressed under detector The upper surface of, if the ball in bearing to be detected is without neglected loading, all detection probes are jacked up by ball, make conductive cap and conductive plate phase Separation, closed circuit are disconnected, and alarm lamp extinguishes, if the ball neglected loading in bearing to be detected lacks ball, there is ball position Part detection probe is jacked up, and the part detection probe for lacking ball position keeps original state, and the conductive cap of end, which continues to fall in, leads The upper surface of battery plate, circuit will not extinguish still in closed state, alarm lamp, that is, can determine that the bearing to be detected is unqualified, avoid The case where missing inspection or erroneous detection, occurs, convenient and efficient, improves the accuracy rate of detection, ensure that the product quality of bearing；It is tied Structure is simple, ingenious in design, and system power dissipation is low, and detection accuracy is high, fast response time, and stability and good reliability have good Practicability and scalability can meet the detection demand of different model bearing.

Detailed description of the invention

Fig. 1 is a kind of external structure schematic diagram of the scarce ball detection device of bearing involved in the utility model.

Fig. 2 is a kind of elevating mechanism structural schematic diagram of the scarce ball detection device of bearing involved in the utility model.

Fig. 3 is a kind of guiding mechanism structural schematic diagram of the scarce ball detection device of bearing involved in the utility model.

Fig. 4 is a kind of detection process schematic diagram of the scarce ball detection device of bearing involved in the utility model.

Fig. 5 is a kind of testing agency's structural schematic diagram of the scarce ball detection device of bearing involved in the utility model.

Fig. 6 is a kind of original state electric connection figure of the scarce ball detection device of bearing involved in the utility model.

Specific embodiment

Embodiment involved in the utility model is described in further detail with reference to the accompanying drawing.

In conjunction with FIG. 1 to FIG. 6, a kind of scarce ball detection device of bearing, including device noumenon, device noumenon and external PLC work Control machine is connected and receives the control of PLC industrial personal computer, and device noumenon includes pedestal 1, elevating mechanism 2, guiding mechanism 3, detection machine Structure 4 and load carrier 5, elevating mechanism 2 are located at the top rear of pedestal 1, and guiding mechanism 3 is located at the front of elevating mechanism 2, guiding Mechanism 3 is connected with elevating mechanism 2, and testing agency 4 is connected with elevating mechanism 2, before testing agency 4 is located at guiding mechanism 3 Side, load carrier 5 are located at the top nose of pedestal 1, and load carrier 5 is located at the underface of testing agency 4；Elevating mechanism 2 includes First support column 21, the second support column 22, crossbeam 23, lifting cylinder 24, lifter plate 25 and alarm lamp 26,21 He of the first support column Second support column 22 distinguishes the top rear two sides positioned at pedestal 1 of horizontal symmetrical, and one end of the first support column 21 connects pedestal 1, the bottom side of the other end connecting cross beam 23 of the first support column 21, one end of the second support column 22 also connects pedestal 1, and second The bottom other side of the other end connecting cross beam 23 of support column 22, the top of crossbeam 23 it is placed in the middle be fixedly installed with lifting cylinder The control signal output of 24, lifting cylinder 24 and PLC industrial personal computer is electrical connected, and the elevating lever 241 of lifting cylinder 24 is through cross Beam 23 simultaneously extends downwardly, and the end of the elevating lever 241 of lifting cylinder 24 connects lifter plate 25, and lifter plate 25 is located at the first support column 21 and second between support column 22, the elevating lever 241 of the top rear connection lifting cylinder 24 of lifter plate 25, the top of lifter plate 25 Portion front end it is placed in the middle be equipped with alarm lamp 26, the bottom front of lifter plate 25 is equipped with testing agency 4, and testing agency 4 is located at alarm lamp 26 underface, the side connection guiding mechanism 3 of lifter plate 25；Guiding mechanism 3 includes the first guide post 31, the second guide post 32, the first guide pad 33 and the second guide pad 34, the first guide post 31 and the second guide post 32 horizontal symmetrical are set to pedestal 1 Top center two sides, the first guide post 31 and the second guide post 32 are located at the front of the first support column 21 and the second support column 22, It is placed in the middle on the medial surface of first guide post 31 to be equipped with the first vertical guide groove 311, it is set on the medial surface of the second guide post 32 There is the second vertical guide groove 321, the first guide groove 311 is identical with 321 length of the second guide groove and horizontal opposite, the first guiding The inside of slot 311 is slidably embedded with the first guide pad 33, and one end of the first guide pad 33 is located in the first guide groove 311 Face, the side of the other end connection lifter plate 25 of the first guide pad 33, the inside of the second guide groove 321 is slidably embedded with the Two guide pads 34, one end of the second guide pad 34 are located at the inside of the second guide groove 321, the other end connection of the second guide pad 34 The other side of lifter plate 25；Testing agency 4 includes attachment base 41 and detector 42, and detector 42 and attachment base 41 are dismountable It is connected, attachment base 41 includes attachment base ontology 411 and connection base 412, top and the lifter plate 25 of attachment base ontology 411 Bottom is connected, the bottom of attachment base ontology 411 it is placed in the middle be equipped with the connection base 412 being recessed inwardly, connection base 412 with report Warning lamp 26 is electrical connected, and detector 42 includes detector ontology 421, connecting male 422, conductive plate 423,424 and of detection probe Conductive cap 425, the top positioned at detector ontology 421 placed in the middle of connecting male 422, connecting male 422 are with base 412 is connect It dismountable bolt and is electrical connected, conductive plate 423 is horizontally placed on the inside of detector ontology 421, and several detection probes 424 are divided The not uniformly bottom set on detector ontology 421 of circumferential direction, one end of every detection probe 424 is located at detector ontology 421 The other end of lower section, every detection probe 424 through the bottom of detector ontology 421 and conductive plate 423 and stretches out conductive plate 423 The upper surface of, stretch out in the detection probe 424 of conductive plate 423 the other end connection conductive cap 425, several conductive caps 425 respectively with Connecting male 422 is electrical connected, under original state, detection probe 424 due to gravity free-falling make conductive cap 425 with Conductive plate 423 is in contact and is electrical connected to form several conductive branch being in parallel, the position of several detection probes 424 respectively with The position of several balls in bearing 6 to be detected is corresponding；Load carrier 5 includes bearing seat 51, loading plate 52, bearing limited post 53 and washer 54, bearing seat 51 be located at the top nose of pedestal 1, loading plate 52 is located at the top of bearing seat 51, bearing limited post 53 tops set on loading plate 52 placed in the middle, the height of bearing limited post 53 are no more than the height of bearing 6 to be detected, bearing limit The together circle center of the center of circle of column 53 and several detection probes 424 is on same vertical line, and washer 54 is set in bearing limited post The internal diameter of 53 outside, washer 54 is identical as the diameter of bearing limited post 53, and the height of washer 54 is no more than bearing 6 to be detected Highly；Device noumenon is powered by external power supply, and external power supply is that PLC industrial personal computer and lifting cylinder 24 provide operating voltage, initially Under state, external power supply, alarm lamp 26, connection base 412, connecting male 422, several conductive caps 425 and conductive plate 423 are constituted Closed circuit.

The diameter of bearing limited post 53 is set as a reference value, according to the bearing to be detected 6 of different model, chooses corresponding type Number washer 54, in advance by 54 sets of the washer outsides in bearing limited post 53, inner ring is just pasted when putting on bearing 6 to be detected It closes, avoids the generation of bearing 6 movement to be detected in detection process and influence the accuracy rate of detection and the efficiency of detection, and can expire The detection demand of sufficient different model bearing.Washer 54 is usually that rubber material is made, and can avoid the inner ring and axis of bearing 6 to be detected The surface for holding limited post 53 occurs friction and influences appearance.In detection process, bearing 6 to be detected is compressed against on loading plate 52 Face, in order to avoid rigidity friction occurs for the bottom of bearing 6 to be detected and the surface of loading plate 52 to influence bearing 6 to be detected Appearance wraps up flexible material in the upper surface of loading plate 52, while loading plate 52 being made to have the effect of damping, buffering.Simultaneously according to not With the bearing to be detected 6 of model, the detector 42 of corresponding model is chosen, since connection base 412 cannot be replaced, based on saving Cost is considered, and the connecting male 422 at 42 top of different model detector is all the same, and only several detections of uniform annular spread are visited The position of needle 424 is different.41 bolt of detector 42 and attachment base, dismounting and replacement are all very simple, can meet different model The detection demand of bearing.

It installs, in the running parameter of PLC industry control generator terminal setting lifting cylinder 24, such as the collapsing length of elevating lever 241 Deng the selection mini cylinder of MA stainless steel of lifting cylinder 24, using special-shaped Bidirectional seal structure, compact dimensions, compact, installation It is convenient, and cylinder strength is high, anticorrosive, service life is more permanent.Lifting cylinder 24 drives elevating lever 241 to extend downwards, makes The testing agency 4 of lifter plate 25 and its bottom falls, and lifter plate 25 drives the guide pad of two sides to move down along guide groove, instead Come over the guide pad of two sides and the elevating lever 241 of lifting cylinder 24 is formed together three-legged structure, so that lifter plate 25 was being gone up and down Stabilization is able to maintain in journey, the testing agency 4 for avoiding end shakes and influences the accuracy rate of detection and the efficiency of detection, mentions Stability and reliability are risen.

When not detecting i.e. under original state, detection probe 424 is due to gravity free-falling, the conductive cap of end 425 fall in the upper surface of conductive plate 423, thus in external power supply-alarm lamp 26- connection base 412- connecting male 422- conductive cap Closed circuit is formed between 425- conductive plate 423, the energization of alarm lamp 26 is lit, and alarm lamp 26 selects monochromatic LED indicator light.For Avoid interfering the effect of the accuracy rate and detection that influence detection, the choosing of detection probe 424 is made from an insulative material.And start When detection, the elevating lever 241 of lifting cylinder 24 will test first 42 and press to the upper surface of bearing 6 to be detected, 42 bottom of detector Several detection probes 424 detect in bearing 6 to be detected whether installed ball on opposite position.If in bearing 6 to be detected Ball without neglected loading, then all detection probes 424 are jacked up by ball, are separated conductive cap 425 with 423 phase of conductive plate, are closed back Road is disconnected, and alarm lamp 26 extinguishes；If the ball neglected loading in bearing 6 to be detected lacks ball, there is the part of ball position to detect Probe 424 is jacked up, and the part detection probe 424 for lacking ball position keeps original state, and the conductive cap 425 of end, which continues to fall in, leads The upper surface of battery plate 423, circuit will not extinguish still in closed state, alarm lamp 26, that is, can determine that the bearing 6 to be detected does not conform to Lattice occur so as to avoid the case where missing inspection or erroneous detection, convenient and efficient, improve the accuracy rate of detection, ensure that the production of bearing Quality.

Embodiment described above is only that preferred embodiments of the present invention are described, not practical to this Novel conception and scope is defined.Without departing from the design concept of the present utility model, ordinary people in the field couple The all variations and modifications that the technical solution of the utility model is made, should fall within the protection scope of the present utility model, this reality With novel claimed technology contents, it is all described in the claims.

Claims

1. a kind of bearing lacks ball detection device, including device noumenon, described device ontology is connected simultaneously with external PLC industrial personal computer Receive the control of the PLC industrial personal computer, it is characterised in that: described device ontology includes pedestal, elevating mechanism, guiding mechanism, inspection It surveys mechanism and load carrier, the elevating mechanism is located at the top rear of the pedestal, the guiding mechanism is located at the lifting The front of mechanism, the guiding mechanism are connected with the elevating mechanism, and the testing agency is connected with the elevating mechanism, The testing agency is located at the front of the guiding mechanism, and the load carrier is located at the top nose of the pedestal, described to hold Mounted mechanism is located at the underface of the testing agency.

2. a kind of bearing according to claim 1 lacks ball detection device, it is characterised in that: the elevating mechanism includes first Support column, the second support column, crossbeam, lifting cylinder, lifter plate and alarm lamp, first support column and second support column One end of the top rear two sides positioned at the pedestal of horizontal symmetrical respectively, first support column connects the pedestal, institute The other end for stating the first support column connects the bottom side of the crossbeam, and one end of second support column also connects the bottom Seat, the other end of second support column connect the bottom other side of the crossbeam, the top of the crossbeam fixed peace placed in the middle Equipped with the lifting cylinder, the control signal output of the lifting cylinder and the PLC industrial personal computer is electrical connected, the lifting The elevating lever of cylinder is through the crossbeam and extends downwardly, and the end of the elevating lever of the lifting cylinder connects the lifter plate, The lifter plate is between first support column and second support column, described in the top rear connection of the lifter plate The elevating lever of lifting cylinder, the top nose of the lifter plate it is placed in the middle be equipped with the alarm lamp, before the bottom of the lifter plate End is equipped with the testing agency, and the testing agency is located at the underface of the alarm lamp, and the side of the lifter plate connects institute State guiding mechanism.

3. a kind of bearing according to claim 2 lacks ball detection device, it is characterised in that: the guiding mechanism includes first Guide post, the second guide post, the first guide pad and the second guide pad, first guide post and the second guide post level are right The top center two sides set on the pedestal claimed, first guide post and second guide post are located at first support The front of column and second support column, it is placed in the middle on the medial surface of first guide post to be equipped with the first vertical guide groove, The medial surface of second guide post is equipped with the second vertical guide groove, first guide groove and the second guiding flute length Spend identical and horizontal opposite, the inside of first guide groove is slidably embedded with first guide pad, and described first leads It is located at the inside of first guide groove to one end of block, the other end of first guide pad connects the one of the lifter plate Side, the inside of second guide groove are slidably embedded with second guide pad, and one end of second guide pad is located at The other end of the inside of second guide groove, second guide pad connects the other side of the lifter plate.

4. a kind of bearing according to claim 2 lacks ball detection device, it is characterised in that: the testing agency includes connection Seat and detector, the detector and the attachment base are removably to be connected, the attachment base include attachment base ontology with Base is connected, the top of the attachment base ontology is connected with the bottom of the lifter plate, and the bottom of the attachment base ontology occupies In equipped with the connection base being recessed inwardly, the connection base is electrical connected with the alarm lamp, the detector packet Include detector ontology, connecting male, conductive plate, detection probe and conductive cap, the connecting male it is placed in the middle be located at the detection The top of head ontology, the connecting male for dismountable bolt and are electrical connected with the connection base, the conductive plate It is horizontally placed on the inside of the detector ontology, several detection probes are uniformly circumferential respectively to be set to the detector ontology Bottom, one end of the every detection probe are located at the lower section of the detector ontology, the other end of the every detection probe It through the bottom of the detector ontology and the conductive plate and the upper surface of stretches out the conductive plate, stretches out in the conductive plate The other end of the detection probe connects the conductive cap, and several conductive caps are electrical connected with the connecting male respectively, Under original state, the detection probe due to gravity free-falling make the conductive cap be in contact with the conductive plate and It is electrical connected to form several conductive branch being in parallel, if the position of several detection probes is respectively and in bearing to be detected The position of dry milling pearl is corresponding；The detection probe choosing is made from an insulative material.

5. a kind of bearing according to claim 4 lacks ball detection device, it is characterised in that: the load carrier includes carrying Seat, loading plate, bearing limited post and washer, the bearing seat are located at the top nose of the pedestal, and the loading plate is located at institute State the top of bearing seat, the bearing limited post top set on the loading plate placed in the middle, the height of the bearing limited post No more than the height of bearing to be detected, the together circle center of the center of circle of the bearing limited post and several detection probes is in same On one vertical line, the washer is set in the outside of the bearing limited post, the internal diameter of the washer and the bearing limited post Diameter it is identical, the height of the washer is no more than the height of bearing to be detected；The top of the loading plate can wrap up flexible material Material.

6. a kind of bearing according to claim 5 lacks ball detection device, it is characterised in that: described device ontology is by external electrical Source power supply, external power supply provide operating voltage for the PLC industrial personal computer and the lifting cylinder, under original state, the outside Power supply, the alarm lamp, the connection base, the connecting male, several conductive caps and the conductive plate constitute closure Circuit.

7. a kind of bearing according to claim 2 lacks ball detection device, it is characterised in that: the lifting cylinder selects MA not Become rusty the mini cylinder of steel, and the lifting cylinder receives the control signal of the PLC industrial personal computer output and its elevating lever is driven to stretch Movement, so that the testing agency is pressed to the upper surface of described load carrier.

8. a kind of bearing according to claim 5 lacks ball detection device, it is characterised in that: the alarm lamp is selected monochromatic LED light, the alarm lamp are lit in the initial state, and when all conductive caps are separated with the conductive plate, institute State alarm lamp extinguishing.

9. a kind of bearing according to claim 4 lacks ball detection device, it is characterised in that: according to the to be detected of different model Bearing, the corresponding several models of setting of the detector, with guarantee the positions of several detection probes always with it is to be detected The position of several balls in bearing is corresponding, and the detector of different model keeps the connecting male constant.

10. a kind of bearing according to claim 5 lacks ball detection device, it is characterised in that: according to the to be checked of different model Bearing is surveyed, the washer is corresponding to be arranged several models, to be set in outside the bearing limited post and bearing to be detected Inner ring internal diameter fits.