CN112128254A - Preassembling method and device for inner ring and outer ring of angular contact ball bearing - Google Patents

Preassembling method and device for inner ring and outer ring of angular contact ball bearing Download PDF

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Publication number
CN112128254A
CN112128254A CN202010810539.9A CN202010810539A CN112128254A CN 112128254 A CN112128254 A CN 112128254A CN 202010810539 A CN202010810539 A CN 202010810539A CN 112128254 A CN112128254 A CN 112128254A
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China
Prior art keywords
inner ring
sleeve
bearing
steel ball
outer ring
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CN202010810539.9A
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CN112128254B (en
Inventor
徐立伟
孙淑庆
褚洪波
李笃锦
赵修雷
金立宝
丁昌伟
王志民
李晨
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Jinan Yi Hang Technology Co ltd
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Jinan Yi Hang Technology Co ltd
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C43/00Assembling bearings
    • F16C43/04Assembling rolling-contact bearings

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mounting Of Bearings Or Others (AREA)

Abstract

The assembling method can convey the inner ring and the outer ring which are qualified in pre-assembly detection to a blanking turntable or a waste material line respectively in pairs according to identification results, and the pre-assembled retainer is a standard component and can be recycled. The device adopts the sleeve closing and sleeve detaching robot to complete the sleeve closing and sleeve detaching operation, greatly simplifies the machine mechanism, promotes the operation efficiency, saves the operation space and saves the cost.

Description

Preassembling method and device for inner ring and outer ring of angular contact ball bearing
Technical Field
The invention relates to the technical field of automatic assembly of bearings, in particular to a preassembly method and a preassembly device for inner and outer rings of an angular contact ball bearing.
Background
As one of the precision bearings, the angular contact ball bearing includes an inner ring, an outer ring, and a steel ball retainer located between the inner ring and the outer ring, and a plurality of steel balls are distributed on the steel ball retainer (see fig. 1). As a bearing for supporting a ball screw, angular contact ball bearings need to be used in pairs and installed oppositely, so that the purpose of limiting axial movement of the screw is achieved.
In consideration of the high requirement on machining precision when the angular contact ball bearings are used in pairs, in the prior art, the assembly of the angular contact ball bearings generally adopts a mechanical assembly mode of simple manual fit, and has the defects of low assembly efficiency and difficulty in mass production.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides a preassembling method of an inner ring and an outer ring of an angular contact ball bearing. The technical scheme is as follows: the preassembling method of the inner ring and the outer ring of the angular contact ball bearing is characterized in that: the preassembly method comprises the following steps:
s1: conveying the inner ring and the outer ring to be assembled to an inner ring feeding component and an outer ring feeding component respectively through a feeding part;
s2: the gripping part of the sleeve matching part grips the outer ring and the steel ball retainer which is positioned on the steel ball retainer placing frame and is provided with the steel ball, and the gripping part is conveyed to the sleeve matching part of the sleeve matching part to realize sleeve matching;
s3: the sleeve assembling component integrates the outer ring, the steel ball retainer and the inner ring conveyed from the inner ring feeding component into a whole to complete bearing preassembly, and conveys the preassembly bearing to a detection part through the sleeve assembling and conveying component;
s4: the detection part detects the precision of the pre-assembled bearing and identifies the pre-assembled bearing according to the detection result;
s5: the sleeve disassembling and blanking part is used for disassembling the conveyed pre-assembled bearing through a sleeve disassembling part, the inner ring and the outer ring which are marked as unqualified after the pre-assembled bearing is disassembled are output in pairs through a waste material line, and the inner ring and the outer ring which are marked as qualified after the pre-assembled bearing is disassembled are output in pairs through a blanking turntable. The method comprises the steps that conveyed paired inner rings, outer rings and a retainer (standard component) are sequentially subjected to sleeve assembling, precision detection and sleeve disassembling, the workpieces marked as qualified are conveyed to the next procedure for continuous processing, and the workpieces marked as unqualified are separated out through a waste material line; the method ensures the unique object property and directivity of the inner ring and the outer ring and ensures the processing precision of the bearing.
The preassembly method further comprises: s6: and conveying the disassembled steel ball retainer to a steel ball retainer placing frame. The method realizes the recycling of the retainer as a standard component.
The preassembly further comprises: s0: calibration, comprising:
s01: conveying the inner ring and the outer ring to be assembled to an inner ring feeding component and an outer ring feeding component respectively through a feeding part;
s02: the gripping part of the sleeve matching part grips the outer ring and the calibration piece positioned on the steel ball retainer placing frame, the calibration piece is a steel ball retainer filled with steel balls and is conveyed to the sleeve matching part of the sleeve matching part to realize sleeve matching;
s03: the sleeve assembling component integrates the outer ring, the steel ball retainer and the inner ring conveyed from the inner ring feeding component into a whole to complete bearing preassembly, and conveys the preassembly bearing to a detection part through the sleeve assembling and conveying component;
s04: the detection part detects the precision of the pre-assembled bearing and identifies the pre-assembled bearing according to the detection result;
s05: the sleeve disassembling and blanking part disassembles the conveyed preassembled bearing through a sleeve disassembling part, the inner ring and the outer ring which are marked as unqualified and are disassembled from the preassembled bearing are output in pairs through a waste material line, and the inner ring and the outer ring which are marked as qualified and are disassembled from the preassembled bearing are output in pairs through a blanking turntable;
s06: and evaluating the machining precision of the pre-assembled bearing, and correspondingly adjusting to finish calibration.
The calibration step can be carried out when the equipment reaches the set calibration time or the calibration quantity, normal processing can be carried out if the equipment is qualified, and the equipment is adjusted if the equipment is unqualified, so that the requirement on the product precision is met.
The step S2 is implemented as follows:
s21: the sleeve fitting component tightly tensions the inner ring and rotates;
s22: the grabbing component sleeves the steel ball retainer and the outer ring with the inner ring in sequence respectively to complete sleeve sleeving.
The preassembly method comprises the following steps:
s1: conveying the inner ring and the outer ring to be assembled to an inner ring feeding part and an outer ring feeding part respectively through a conveying line of a feeding part;
s2: the fitting robot of the fitting part grabs the outer ring and the steel ball retainer which is positioned on the steel ball retainer placing frame and is provided with the steel ball, and conveys the steel ball retainer to the fitting part of the fitting part to realize fitting;
s3: the sleeve assembling component integrates the outer ring, the steel ball retainer and the inner ring conveyed from the inner ring feeding component into a whole to complete bearing preassembly, and conveys the preassembly bearing to a detection part through the sleeve assembling and conveying component;
s4: the protrusion amount detection part detects the protrusion amount of the preassembled bearing, the preassembled bearing is identified according to the detection result, and the sleeve-removing and carrying component carries the preassembled bearing to the sleeve-removing and blanking part;
s5: the sleeve disassembling and blanking part disassembles the conveyed preassembled bearing through a sleeve disassembling part, the inner ring and the outer ring which are marked as unqualified and are disassembled from the preassembled bearing are output in pairs through a waste material line, and the inner ring and the outer ring which are marked as qualified and are disassembled from the preassembled bearing are output in pairs through a blanking turntable;
s6: the disassembled steel ball retainer is conveyed to a steel ball retainer placing frame through a retainer transferring part;
s7: the blanking turntable rotates, the paired inner ring and outer ring are transferred to a discharging position, and a subsequent processing part of the production line grabs qualified parts from the discharging position and enters the next working procedure.
In consideration of the requirement of simple structure of the equipment, the method uses a fitting robot to complete the collection of the parts; the bearing precision detection adopts the protrusion detection according to the characteristics of the angular contact bearing, and then identifies the corresponding inner ring and the outer ring according to the protrusion detection value, so that the bearing precision detection has the advantage of accurate identification.
The preassembly method comprises the following steps:
s1: conveying the inner ring and the outer ring to be assembled to an inner ring feeding component and an outer ring feeding component respectively through a feeding part;
s2: the gripping part of the fitting part grips the outer ring and the steel ball retainer which is positioned on the steel ball retainer placing frame and is provided with the steel ball, and the gripping part is conveyed to a manual operation station through a manual fitting conveying part;
s3: manually sleeving the outer ring, the steel ball retainer and the inner ring conveyed from the inner ring feeding component into a whole to finish bearing pre-assembly and placing the bearing to a detection part;
s4: the detection part detects the precision of the pre-assembled bearing and identifies the pre-assembled bearing according to the detection result;
s5: the pre-assembled bearing is manually taken down from the detection part and then split, the inner ring and the outer ring which are marked as unqualified after the pre-assembled bearing is split are manually paired on a waste material line, and the inner ring and the outer ring which are marked as qualified after the pre-assembled bearing is split are manually paired and placed on a discharging turntable for outputting.
Considering that the sleeve assembling part and the sleeve disassembling part can not automatically complete the sleeve assembling and disassembling operation limited by the product style, the sleeve assembling and disassembling work is carried out manually.
The utility model provides an inner and outer lane preassembling device of angular contact ball bearing which characterized in that:
the preassembling device comprises a feeding part, a sleeve fitting part, a detecting part and a sleeve disassembling and blanking part;
the feeding part comprises an inner ring feeding conveying line and an outer ring feeding conveying line;
the fitting part comprises a fitting robot, and a steel ball retainer placing frame is arranged on one side of the fitting robot; the inner ring expansion core is arranged on the positioning seat, the inner ring expansion core is connected with the expansion core driving assembly, the positioning seat is arranged on the rotary sleeve, and the rotary sleeve is connected with the rotary sleeve driving assembly; the clamping jaw I and/or the clamping jaw II are/is used for buckling the outer ring or the steel ball retainer on the inner ring under the control of the fitting robot;
the detection part is a protrusion amount detection part;
the output parts of the sleeve disassembling and blanking part are respectively a blanking turntable and a waste material line.
The device provides the pre-assembly device for the inner ring and the outer ring of the angular contact ball bearing, which adopts the pre-assembly steel ball retainer and simulates the actual state.
The preassembling device further comprises a steel ball retainer circulating part, the steel ball retainer circulating part comprises a steel ball retainer placing frame close to the fitting robot and a retainer return conveying assembly which is connected with the discharging position of the steel ball retainer of the discharging turntable and conveys the steel ball retainer back to the steel ball retainer placing frame. The retainer in the device can be recycled as a standard part.
The sleeve disassembling and blanking part comprises a sleeve disassembling robot, one side of the sleeve disassembling robot is a blanking turntable, and the other side of the sleeve disassembling robot is a waste material line; the sleeve disassembling component comprises a rotary sleeve and an inner ring expansion core, the inner ring is placed on the inner ring expansion core, the inner ring expansion core is arranged on a positioning seat, the inner ring expansion core is connected with an expansion core driving assembly, the positioning seat is installed on the rotary sleeve, and the rotary sleeve is connected with a rotary sleeve driving assembly; the clamping device further comprises a clamping jaw I and/or a clamping jaw II which are/is used for outputting the outer ring or the steel ball retainer outwards to a specified position under the control of the sleeve dismounting robot. The sleeve detaching robot of the device completes the sleeve detachment of the pre-assembled bearing and conveys the sleeved components to the set position.
The invention has the beneficial effects that: the method adopts the preassembling process to solve the problems that the precision of the angular contact ball bearing is difficult to ensure and the automatic production cannot be realized in the prior art, and the consistency of preassembly and finished product precision is ensured by the inner ring and the outer ring which are fed from the front end to the rear end and are arranged in pairs; the device adopts the sleeve closing and sleeve removing robot to complete the sleeve closing and sleeve removing operation, greatly simplifies the machine mechanism, improves the operation efficiency and saves the operation space; the retainer in the device can be recycled as a standard part, so that the cost is saved.
Drawings
Fig. 1 is a schematic structural diagram of an angular contact ball bearing, fig. 2 is a schematic structural diagram of a steel ball retainer, fig. 3 is a schematic structural diagram of the pre-assembly device, fig. 4 is a schematic structural diagram of a sleeve fitting part, and fig. 5 is a schematic structural diagram of a protrusion measuring part.
1001 is an inner ring, 1002 is an outer ring, 1003 is a standard steel ball, 1004 is a steel ball retainer;
i is a feeding part and a sleeve assembling part, II is a protrusion amount detection part, and III 3 is a sleeve disassembling and blanking part;
11 is an inner ring/outer ring feeding conveying line, 12 is a nesting four-axis robot, 13 is a steel ball retainer placing frame, 14 is a nesting conveying mechanism, 15 is a manual nesting conveying mechanism, and 16 is an inner ring feeding pushing mechanism; 21 is a projection amount detection mechanism, and 22 is a standard transfer mechanism; 31 is an inner ring waste material line and an outer ring waste material line, 32 is a manual sleeve removing and conveying mechanism, 33 is a sleeve removing and stepping conveying mechanism, 34 is a blanking turntable mechanism, 35 is a visual code reading mechanism, and 36 is a sleeve removing four-axis robot; 101 is an outer ring feeding station, 102 is an inner ring feeding station, 103 is an inner ring carrying station, 104 is a sleeve combining station, and 105 is a steel ball retainer storage station; 201 is a protrusion amount detection station, 202 is a steel ball retainer, and 203 is a calibration piece; 301 is a sleeve disassembling station, 302 is an inner ring discharging station, 303 is a code reading station, and 304 is a turntable blanking station; 305 is an outer ring discharge station; 40 are manual stations.
135 is an upper plate, 136 is an upright post, 137 is a lower plate, 138 is a bearing seat, 139 is a rotating sleeve, 140 is a bearing, 141 is a spacer bush, 142 is a small round nut I, 143 is a positioning seat, 144 is an inner ring supporting seat, 145 is an inner ring expanding core, 146 is an upper pressing block, 147 is a pull rod, 148 is a spring, 149 is a spring limiting block, 152 is an air claw mounting plate, 153 is a clamping jaw air cylinder, 154 is a clamping jaw I, 156 is a clamping jaw II, 157 is a jacking air cylinder, 158 is a motor mounting bracket, 159 is a rotating motor, 160 is a speed reducer, 161 is a driving pulley, 162 is a driven pulley, 163 is a synchronous belt, 164 is a small round nut II, and a top rod is 165.
171 is a base, 172 is a vertical plate, 173 is a transverse plate, 174 is an air bearing, 175 is a lower tool, 176 is a measured bearing, 177 is a sensor, 178 is a step weight assembly, 179 is a counterweight center rod, 1710 is a lifting L-plate, 1711 is a lifting driving member, 1712 is a rotary driving member, 1713 is a connecting sleeve, 1714 is a linear slide rail, 1715 is a ball screw, 1716 is a lifting part, 1717 is a rotary part, 1718 is a counterweight part.
Detailed Description
The following describes a specific embodiment of the present invention with reference to the drawings.
The invention discloses a preassembling method of an angular contact bearing, which comprises the following steps:
s0: calibration, calibration is qualified after, and the device normally works, and the calibration surpasss the settlement scope, then sends out the warning suggestion, needs the manual work to seek the reason and removes the alarm, includes:
s01: conveying an inner ring 1001 and an outer ring 1002 to be assembled to an inner ring feeding component and an outer ring feeding component respectively through a feeding part;
s02: the gripping part of the sleeve matching part grips the outer ring 1002 and a calibration piece positioned on the steel ball retainer placing frame 13, the calibration piece is a steel ball retainer filled with steel balls and is conveyed to the sleeve matching part of the sleeve matching part to realize sleeve matching;
s03: the sleeve assembling component integrates the outer ring 1002, the steel ball retainer 1004 and the inner ring 1001 conveyed from the inner ring feeding component into a whole to complete bearing preassembly, and conveys the preassembly bearing to a detection part through the sleeve assembling and conveying component;
s04: the detection part detects the precision of the pre-assembled bearing and identifies the pre-assembled bearing according to the detection result;
s05: the sleeve disassembling and blanking part disassembles the conveyed preassembled bearing through a sleeve disassembling part, the inner ring and the outer ring which are marked as unqualified and are disassembled from the preassembled bearing are output in pairs through a waste material line, and the inner ring and the outer ring which are marked as qualified and are disassembled from the preassembled bearing are output in pairs through a blanking turntable;
s06: and evaluating the machining precision of the pre-assembled bearing, correspondingly adjusting, and finishing calibration by the pre-assembling device.
The device which meets the requirements after calibration is preassembled with bearings according to the following steps:
s1: conveying the inner ring 1001 and the outer ring 1002 to be assembled to an inner ring feeding part and an outer ring feeding part respectively through conveying lines of a feeding part;
s2: the fitting robot of the fitting part grabs the outer ring and the steel ball retainer which is positioned on the steel ball retainer placing frame and is provided with the steel ball, and conveys the steel ball retainer to the fitting part of the fitting part to realize fitting;
s21: the sleeve fitting component tightly tensions the inner ring and rotates;
s22: the grabbing component sleeves the steel ball retainer and the outer ring with the inner ring in sequence respectively to complete sleeve sleeving.
S3: the sleeve assembling component integrates the outer ring, the steel ball retainer and the inner ring conveyed from the inner ring feeding component into a whole to complete bearing preassembly, and conveys the preassembly bearing to a detection part through the sleeve assembling and conveying component;
s4: the protrusion amount detection part detects the protrusion amount of the preassembled bearing, the preassembled bearing is identified according to the detection result, and the sleeve-removing and carrying component carries the preassembled bearing to the sleeve-removing and blanking part;
s5: the sleeve disassembling and blanking part disassembles the conveyed preassembled bearing through a sleeve disassembling part, the inner ring and the outer ring which are marked as unqualified and are disassembled from the preassembled bearing are output in pairs through a waste material line, and the inner ring and the outer ring which are marked as qualified and are disassembled from the preassembled bearing are output in pairs through a blanking turntable;
s6: the disassembled steel ball retainer is conveyed to a steel ball retainer placing frame through a retainer transferring part;
s7: the blanking turntable rotates, the paired inner ring and outer ring are transferred to a discharging position, and a subsequent processing part of the production line grabs qualified parts from the discharging position and enters the next working procedure.
The number of the steel balls in the steel ball retainer is more than zero and less than the total number of the ball pockets of the retainer.
When the automatic process of assembling and disassembling the sleeve cannot be completed due to the limitation of product styles, the assembly and disassembly work can be carried out manually, and the preassembling method comprising partial manual operation comprises the following steps:
s1: conveying an inner ring 1001 and an outer ring 1002 to be assembled to an inner ring feeding component and an outer ring feeding component respectively through a feeding part;
s2: the gripping part of the fitting part grips the outer ring and the steel ball retainer which is positioned on the steel ball retainer placing frame and is provided with the steel ball, and the gripping part is conveyed to a manual operation station through a manual fitting conveying part;
s3: manually sleeving the outer ring, the steel ball retainer and the inner ring conveyed from the inner ring feeding component into a whole to finish bearing pre-assembly and placing the bearing to a detection part;
s4: the detection part detects the precision of the pre-assembled bearing and identifies the pre-assembled bearing according to the detection result;
s5: the pre-assembled bearing is manually taken down from the detection part and then split, the inner ring and the outer ring which are marked as unqualified after the pre-assembled bearing is split are manually paired on a waste material line, and the inner ring and the outer ring which are marked as qualified after the pre-assembled bearing is split are manually paired and placed on a discharging turntable for outputting.
The invention also discloses an inner ring and outer ring preassembling device of the angular contact ball bearing, which comprises a feeding part, a sleeve fitting part, a detecting part and a sleeve disassembling and blanking part.
The feeding part comprises an inner ring feeding conveying line/an outer ring feeding conveying line 11, and the inner ring and the outer ring are simultaneously conveyed to an outer ring feeding station 101 and an inner ring feeding station 102 through the conveying lines. The inner ring feeding mechanism 16 pushes the inner ring 111 from the inner ring feeding station 102 to the inner ring carrying station 103, and then carries the inner ring to the sleeve assembling station 104 through the sleeve assembling stepping carrying mechanism 14.
The fitting part comprises a fitting robot and a fitting component, and a steel ball retainer placing frame 113 is further arranged on one side of the fitting robot.
An upper plate 135 and a lower plate 137 of the fitting component are connected through an upright column 136, a bearing seat 138 is installed on the upper plate 135, bearings 140 are installed in the bearing seats, a spacer bush 141 is arranged between the two bearings 140, the lower portions of the bearings 140 are tightly backed up by a small round nut I142, a rotary sleeve 139 is installed in the bearings, a through hole penetrating up and down is formed in the center of the rotary sleeve 139, a driven pulley 162 is installed at the lower portion of the rotary sleeve 139, a small round nut II 164 is installed at the lower portion of the driven pulley 162, a driving pulley 161 is installed on a speed reducer 160, the speed reducer 160 is connected with a rotary motor 159, the rotary motor 159 is installed on a motor installation seat 158, the motor installation seat 158 is installed on the lower plate 137, and the.
The positioning seat 143 is installed on the rotary sleeve 139, the inner ring expanding core 145 is arranged on the positioning seat 143, a pull rod 147 is arranged between the positioning seat 143 and the inner ring expanding core 145, the upper end of the pull rod 147 is connected with an upper pressing block 146, the lower end of the pull rod 147 is provided with a spring 148 in series, the lower end of the pull rod 147 is provided with a spring limiting block 149, the outer conical surface of the lower end of the upper pressing block 146 is attached to the inner conical surface of the inner ring expanding core 145, and the inner ring expanding core 145 can be expanded under the action. The positioning seat 143 is provided with an inner ring support base 144, and the inner ring 1001 is placed on the inner ring support base 144 and is tensioned by the inner ring expansion core 145 during fitting. The lower part of the central through hole of the rotating sleeve 139 is provided with a push rod 165, the push rod 165 is connected with a push-up cylinder 157, the push rod 165 is driven to ascend when the push-up cylinder 157 ascends, the upper end surface of the push rod 165 contacts with the lower end surface of the spring limiting block 149 and upwards continues to compress the spring, so that the outer conical surface of the lower end of the upper pressing block 146 is separated from the inner conical surface of the inner ring expanding core 145, the inner ring expanding core 145 inwards recovers, and the inner ring 1001. Four-axis robot 12 is installed on upper plate 135, and four-axis robot 12 lift axle lower extreme is connected clamping jaw mounting panel 152, is equipped with two clamping jaw cylinders 153 on the clamping jaw mounting panel, is equipped with clamping jaw I154 and clamping jaw II 156 on it respectively, and clamping jaw I154 and clamping jaw II 156 all can be under four-axis robot 12 control with steel ball holder 1003 or outer lane 1002 lock on inner circle 1001.
The sleeve assembling part and the sleeve disassembling part have the same structure and the actions are opposite.
The fitting component is used for tensioning and rotating the inner ring 1001, meanwhile, the fitting robot 12 is used for sequentially fitting the steel ball retainer 1003 and the outer ring 1002 which are grabbed by the fitting robot with the inner ring 1001 to complete fitting, and then the fitted workpiece is conveyed to the protrusion amount detection station 201 through the fitting stepping conveying mechanism 14.
The detection part is a protrusion amount detection part;
the output parts of the sleeve dismounting and blanking part are respectively a blanking turntable and a waste material line.
The preassembling device further comprises a steel ball retainer circulating part, the steel ball retainer circulating part comprises a steel ball retainer placing frame 13 close to the fitting robot and a retainer return conveying assembly which is connected with the discharging position of the steel ball retainer of the discharging turntable and conveys the steel ball retainer back to the steel ball retainer placing frame.
The sleeve disassembling and blanking part comprises a sleeve disassembling robot, one side of the sleeve disassembling robot is a blanking turntable, and the other side of the sleeve disassembling robot is a waste material line; the sleeve disassembling component comprises a rotary sleeve and an inner ring expansion core, the inner ring is placed on the inner ring expansion core, the inner ring expansion core is arranged on a positioning seat, the inner ring expansion core is connected with an expansion core driving assembly, the positioning seat is installed on the rotary sleeve, and the rotary sleeve is connected with a rotary sleeve driving assembly; the clamping device further comprises a clamping jaw I and/or a clamping jaw II which are/is used for outputting the outer ring or the steel ball retainer outwards to a specified position under the control of the sleeve dismounting robot.
The projection amount detecting section has a structure in which a measuring device includes a lifting section 201, a rotating section 202, and a weight section 203. The measured bearing 6 is arranged on the rotating part 202, and the measuring part and the counterweight part 203 can move up and down under the driving of the lifting part 201 along with the rotation of the rotating part 202.
Lifting unit 201 is including connecting riser 2 on base 1, is equipped with linear slide 14 on riser 2, and diaphragm 3 is connected to the top of riser 2, fixes lift driving piece 11 on the diaphragm 3, and the lift driving piece is elevator motor in this embodiment, and specific type can be lift servo motor, and the elevator motor output shaft is connected with ball 15, and ball 15 and screw cooperation, the lift L board 10 is connected to the screw, and it is porose to open on the lift L board 10 to supply counter weight well core rod 9 to pass.
The counterweight part 203 comprises a counterweight central rod 9, the end of the counterweight central rod 9 is connected with a step weight assembly 8, the step weight assembly is a positioning structure in which different weights in the assembly can be quickly positioned to achieve accurate combination, for example, a connecting surface of the weights is provided with a groove, and a connecting surface of another weight combined with the weight is provided with a boss matched with the groove. Weight subassembly 8 includes weight chassis and movable weight in this embodiment, and the recess for quick location is seted up to the upper surface on weight chassis, and the recess for quick location is seted up on one surface of movable weight, and another surface establish with recess complex boss, and the center of movable weight is opened have with counter weight center rod complex hole.
The protrusion detecting portion includes a sensor 177, and the sensor 177 may be connected to the center weight bar 179, but may be connected to other positions for measurement.
The rotating part 1717 comprises a base 171, a connecting sleeve 1713 connects the rotating driving piece 1712 to the base 171, the output end of the rotating driving piece 1712 is connected with the air bearing 174, the upper end of the air bearing 174 is provided with a lower tool 175, the lower tool 175 is used for supporting the tested bearing 176, the lifting part 1716 descends to a set position during measurement, and the counterweight part 1718 is in contact with the tested bearing 176 and is separated from the lifting part 1716. The lifting part 1716 after measurement drives the counterweight part 1718 to lift, and the counterweight part is separated from the bearing 176 to be measured.
The device adopts an air bearing 174, and the air bearing is the biggest difference from a common bearing in that air is used for replacing traditional lubricating oil as a lubricating medium; air bearings (also called air bearings) refer to sliding bearings that use gas (usually air, but other gases are possible) as a lubricant. Air is less viscous than oil, is resistant to high temperatures, is pollution-free, and is therefore used in high-speed machines, instruments, and radioactive devices, but has a lower load capacity than oil. Meanwhile, the requirement on the use environment is strict, and the method mainly needs to use pure compressed air after drying and filtering and has constant air pressure; the use process needs to prevent water and oil from permeating.
It is to be understood that the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and that various changes, modifications, additions and substitutions which are within the spirit and scope of the present invention and which may be made by those skilled in the art are also within the scope of the present invention.

Claims (9)

1. The preassembling method of the inner ring and the outer ring of the angular contact ball bearing is characterized in that: the preassembly method comprises the following steps:
s1: conveying the inner ring and the outer ring to be assembled to an inner ring feeding component and an outer ring feeding component respectively through a feeding part;
s2: the gripping part of the sleeve matching part grips the outer ring and the steel ball retainer which is positioned on the steel ball retainer placing frame and is provided with the steel ball, and the gripping part is conveyed to the sleeve matching part of the sleeve matching part to realize sleeve matching;
s3: the sleeve assembling component integrates the outer ring, the steel ball retainer and the inner ring conveyed from the inner ring feeding component into a whole to complete bearing preassembly, and conveys the preassembly bearing to a detection part through the sleeve assembling and conveying component;
s4: the detection part detects the precision of the pre-assembled bearing and identifies the pre-assembled bearing according to the detection result;
s5: the sleeve disassembling and blanking part is used for disassembling the conveyed pre-assembled bearing through a sleeve disassembling part, the inner ring and the outer ring which are marked as unqualified after the pre-assembled bearing is disassembled are output in pairs through a waste material line, and the inner ring and the outer ring which are marked as qualified after the pre-assembled bearing is disassembled are output in pairs through a blanking turntable.
2. A method of preassembling inner and outer races of angular contact ball bearings according to claim 1, wherein: the preassembly method further comprises:
s6: and conveying the disassembled steel ball retainer to a steel ball retainer placing frame.
3. The method of preassembling inner and outer races of angular contact ball bearings according to claim 2, further comprising: the preassembly further comprises:
s0: calibration, comprising:
s01: conveying the inner ring and the outer ring to be assembled to an inner ring feeding component and an outer ring feeding component respectively through a feeding part;
s02: the gripping part of the sleeve matching part grips the outer ring and the calibration piece positioned on the steel ball retainer placing frame, the calibration piece is a steel ball retainer filled with steel balls and is conveyed to the sleeve matching part of the sleeve matching part to realize sleeve matching;
s03: the sleeve assembling component integrates the outer ring, the steel ball retainer and the inner ring conveyed from the inner ring feeding component into a whole to complete bearing preassembly, and conveys the preassembly bearing to a detection part through the sleeve assembling and conveying component;
s04: the detection part detects the precision of the pre-assembled bearing and identifies the pre-assembled bearing according to the detection result;
s05: the sleeve disassembling and blanking part disassembles the conveyed preassembled bearing through a sleeve disassembling part, the inner ring and the outer ring which are marked as unqualified and are disassembled from the preassembled bearing are output in pairs through a waste material line, and the inner ring and the outer ring which are marked as qualified and are disassembled from the preassembled bearing are output in pairs through a blanking turntable;
s06: and evaluating the machining precision of the pre-assembled bearing, and correspondingly adjusting to finish calibration.
4. A method of preassembling inner and outer races of angular contact ball bearings according to claim 1, wherein: the step S2 is implemented as follows:
s21: the sleeve fitting component tightly tensions the inner ring and rotates;
s22: the grabbing component sleeves the steel ball retainer and the outer ring with the inner ring in sequence respectively to complete sleeve sleeving.
5. A method of preassembling inner and outer races of angular contact ball bearings according to claim 1, wherein: the preassembly method comprises the following steps:
s1: conveying the inner ring and the outer ring to be assembled to an inner ring feeding part and an outer ring feeding part respectively through a conveying line of a feeding part;
s2: the fitting robot of the fitting part grabs the outer ring and the steel ball retainer which is positioned on the steel ball retainer placing frame and is provided with the steel ball, and conveys the steel ball retainer to the fitting part of the fitting part to realize fitting;
s3: the sleeve assembling component integrates the outer ring, the steel ball retainer and the inner ring conveyed from the inner ring feeding component into a whole to complete bearing preassembly, and conveys the preassembly bearing to a detection part through the sleeve assembling and conveying component;
s4: the protrusion amount detection part detects the protrusion amount of the preassembled bearing, the preassembled bearing is identified according to the detection result, and the sleeve-removing and carrying component carries the preassembled bearing to the sleeve-removing and blanking part;
s5: the sleeve disassembling and blanking part disassembles the conveyed preassembled bearing through a sleeve disassembling part, the inner ring and the outer ring which are marked as unqualified and are disassembled from the preassembled bearing are output in pairs through a waste material line, and the inner ring and the outer ring which are marked as qualified and are disassembled from the preassembled bearing are output in pairs through a blanking turntable;
s6: the disassembled steel ball retainer is conveyed to a steel ball retainer placing frame through a retainer transferring part;
s7: the blanking turntable rotates, the paired inner ring and outer ring are transferred to a discharging position, and a subsequent processing part of the production line grabs qualified parts from the discharging position and enters the next working procedure.
6. The preassembling method of the inner ring and the outer ring of the angular contact ball bearing is characterized in that: the preassembly method comprises the following steps:
s1: conveying the inner ring and the outer ring to be assembled to an inner ring feeding component and an outer ring feeding component respectively through a feeding part;
s2: the gripping part of the fitting part grips the outer ring and the steel ball retainer which is positioned on the steel ball retainer placing frame and is provided with the steel ball, and the gripping part is conveyed to a manual operation station through a manual fitting conveying part;
s3: manually sleeving the outer ring, the steel ball retainer and the inner ring conveyed from the inner ring feeding component into a whole to finish bearing pre-assembly and placing the bearing to a detection part;
s4: the detection part detects the precision of the pre-assembled bearing and identifies the pre-assembled bearing according to the detection result;
s5: the pre-assembled bearing is manually taken down from the detection part and then split, the inner ring and the outer ring which are marked as unqualified after the pre-assembled bearing is split are manually paired on a waste material line, and the inner ring and the outer ring which are marked as qualified after the pre-assembled bearing is split are manually paired and placed on a discharging turntable for outputting.
7. The utility model provides an inner and outer lane preassembling device of angular contact ball bearing which characterized in that:
the preassembling device comprises a feeding part, a sleeve fitting part, a detecting part and a sleeve disassembling and blanking part;
the feeding part comprises an inner ring feeding conveying line and an outer ring feeding conveying line;
the fitting part comprises a fitting robot, and a steel ball retainer placing frame is arranged on one side of the fitting robot; the inner ring expansion core is arranged on the positioning seat, the inner ring expansion core is connected with the expansion core driving assembly, the positioning seat is arranged on the rotary sleeve, and the rotary sleeve is connected with the rotary sleeve driving assembly; the clamping jaw I and/or the clamping jaw II are/is used for buckling the outer ring or the steel ball retainer on the inner ring under the control of the fitting robot;
the detection part is a protrusion amount detection part;
the output parts of the sleeve disassembling and blanking part are respectively a blanking turntable and a waste material line.
8. The preassembly of claim 7, wherein: the preassembling device further comprises a steel ball retainer circulating part, the steel ball retainer circulating part comprises a steel ball retainer placing frame close to the fitting robot and a retainer return conveying assembly which is connected with the discharging position of the steel ball retainer of the discharging turntable and conveys the steel ball retainer back to the steel ball retainer placing frame.
9. The preassembly of claim 7, wherein: the sleeve disassembling and blanking part comprises a sleeve disassembling robot, one side of the sleeve disassembling robot is a blanking turntable, and the other side of the sleeve disassembling robot is a waste material line; the sleeve disassembling component comprises a rotary sleeve and an inner ring expansion core, the inner ring is placed on the inner ring expansion core, the inner ring expansion core is arranged on a positioning seat, the inner ring expansion core is connected with an expansion core driving assembly, the positioning seat is installed on the rotary sleeve, and the rotary sleeve is connected with a rotary sleeve driving assembly; the clamping device further comprises a clamping jaw I and/or a clamping jaw II which are/is used for outputting the outer ring or the steel ball retainer outwards to a specified position under the control of the sleeve dismounting robot.
CN202010810539.9A 2020-08-13 2020-08-13 Preassembling method and device for inner ring and outer ring of angular contact ball bearing Active CN112128254B (en)

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Publication number Priority date Publication date Assignee Title
CN115971887A (en) * 2023-03-17 2023-04-18 无锡三立轴承股份有限公司 Measuring equipment and method for batch production of universal assembled angular contact bearings

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CN106351967A (en) * 2016-08-31 2017-01-25 洛阳轴研科技股份有限公司 Angular contact ball bearing assembling and sleeving method
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JP2003239956A (en) * 2002-02-13 2003-08-27 Nsk Ltd Manufacturing method for bearing device and bearing device manufactured by the same
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