CN115464474A

CN115464474A - Positioner is used in production of miniature bearing inner race

Info

Publication number: CN115464474A
Application number: CN202211191335.7A
Authority: CN
Inventors: 赵青华; 李贤良; 贺艳梅; 阳斌; 刘洪军; 刘智; 欧阳军平; 李子聪; 刘志磊
Original assignee: Hunan Xinda Micro Bearing Co ltd
Current assignee: Hunan Xinda Micro Bearing Co ltd
Priority date: 2022-09-28
Filing date: 2022-09-28
Publication date: 2022-12-13

Abstract

The invention provides a positioning device for producing a miniature bearing inner ring, which belongs to the technical field of bearing inner ring production, and comprises two groups of expanding mechanisms; every extension mechanism of group all includes the actuating sleeve, the cross sleeve, the spacing groove, first slide bar, the cambered surface props the piece, push rod and connecting block, the connecting rod, the spacing groove, first slide bar, cambered surface props the piece and the connecting rod all is equipped with a plurality ofly, through this device, install bearing inner race behind the surface of antiskid ribbed tile, it moves the extension mechanism operation to drive through driving actuating cylinder operation, the cambered surface props the piece and drives the antiskid ribbed tile rapid extrusion at the internal surface of bearing, it is fixed with the bearing inner race fast, add man-hour to not unidimensional bearing inner race, the extension through first slide bar drives the cambered surface and props the piece and removes, the interval that two cambered surfaces prop the piece is changed according to not unidimensional bearing inner race, be fit for the location needs of not unidimensional bearing inner race, convenient regulation, and convenient use.

Description

Positioner is used in production of miniature bearing inner race

Technical Field

The invention belongs to the technical field of bearing inner ring production, and particularly relates to a positioning device for miniature bearing inner ring production.

Background

The miniature bearing is a metric series, and the outer diameter is less than 9mm; british system, various bearings with outer diameter less than 9.525 mm; the main materials comprise bearing steel, stainless steel, plastics, ceramics and the like, wherein the minimum inner diameter can be 0.6mm, and the inner diameter is more than 1mm generally;

the inner ring of the miniature bearing is a main part of the bearing;

the inner ring of the miniature bearing is processed mainly by ultra-precision processing, and the inner ring of the bearing is processed by surface grinding, centerless coarse grinding, centerless fine grinding, inner ring channel grinding, inner ring flange grinding and inner ring inner circle grinding in sequence;

assembling the processed bearing inner ring with a bearing;

when the surface grinding processing procedure is carried out on the outer surface of the bearing inner ring, the bearing inner ring needs to be fixed by using a positioning device, and then the surface of the bearing inner ring is processed;

in the prior art, when the inner ring of the miniature bearing is fixed by using the positioning device, parts at the joint of the transmission positioning device and the inner ring of the bearing are in fixed sizes, one part corresponds to the inner ring of the bearing in one size, when the inner rings of the bearings in different specifications are machined, the parts connected with the inner ring of the bearing need to be frequently replaced, and the parts cannot be adjusted.

Disclosure of Invention

The invention aims to provide a positioning device for producing a miniature bearing inner ring, and aims to solve the problems that when the positioning device is used for fixing the inner ring of a miniature bearing in the prior art, parts at the joint of a transmission positioning device and the bearing inner ring are fixed in size, one part corresponds to one size of the bearing inner ring, when the bearing inner rings with different specifications are machined, the parts connected with the bearing inner ring need to be frequently replaced, and the parts cannot be adjusted.

In order to achieve the purpose, the invention provides the following technical scheme:

a positioner is used in production of miniature bearing inner race includes:

two groups of expanding mechanisms are arranged;

every group expanding mechanism all includes that driving sleeve, cross sleeve, spacing groove, first slide bar, cambered surface prop up piece, push rod and connecting block, connecting rod, spacing groove, first slide bar, cambered surface prop up piece and connecting rod and all are equipped with a plurality ofly, cross sleeve fixed connection is in a side end of driving sleeve, and is a plurality of the spacing groove is all seted up in the cross sleeve, and is a plurality of first slide bar difference sliding connection is in a plurality of spacing inslots, and is a plurality of the cambered surface props up the one end of piece difference fixed connection in a plurality of first slide bars, push rod sliding connection is in the cross sleeve, connecting block fixed connection is in the circumference surface of push rod, and is a plurality of the connecting rod all rotates to be connected in the connecting block, and is a plurality of the connecting rod is propped up the piece rotation through pivot and a plurality of cambered surface respectively and is connected.

As a preferable scheme of the invention, each first slide bar is internally provided with a first limiting component, each group of first limiting components comprises a limiting rod and a T-shaped sliding groove, the T-shaped sliding groove is formed in the first slide bar, the limiting rod is connected in the T-shaped sliding groove in a sliding manner, and one end of the limiting rod is fixedly connected to the inner wall of one side of the limiting groove.

As a preferable scheme of the present invention, anti-skid plates are fixedly connected in each of the arc-shaped support blocks.

As a preferable scheme of the invention, the two driving sleeves are fixedly connected with driving cylinders, and the extension ends of the two driving cylinders are respectively fixed with one end of each of the two push rods.

As a preferable scheme of the present invention, two sets of second limiting assemblies are disposed in each driving sleeve, each set of second limiting assemblies includes a sliding groove, a second sliding rod and a third sliding rod, the sliding groove is disposed in the driving sleeve, the second sliding rod is fixedly connected to inner walls of two sides of the sliding groove, the third sliding rod is fixedly connected to one end of the push rod, and the third sliding rod is slidably connected to a circumferential surface of the second sliding rod.

As a preferable aspect of the present invention, the expansion mechanism further includes a bottom plate, and the bottom plate is disposed below the two sets of expansion mechanisms.

As a preferable scheme of the invention, the upper end of the bottom plate is fixedly connected with two supporting arms, and one ends of the two supporting arms are fixedly connected with a U-shaped block.

As a preferred scheme of the present invention, two U-shaped blocks are respectively and rotatably connected with a rotating block through a rotating shaft, and one end of each of the two rotating blocks is fixedly connected with a chassis.

As a preferable scheme of the present invention, one side end of each of the two U-shaped blocks is fixedly connected with a first motor, and output ends of the two first motors are respectively connected with the rotating shafts in the two U-shaped blocks.

As a preferred scheme of the present invention, the two cases are both fixedly connected with a second motor, and output ends of the two second motors are respectively fixed with one end of the two driving sleeves.

Compared with the prior art, the invention has the beneficial effects that:

1. according to the device, after the bearing inner ring is arranged on the surface of the antiskid plate, the expansion mechanism is driven to operate by driving the operation of the air cylinder, the cambered surface support block drives the antiskid plate to be quickly extruded on the inner surface of the bearing inner ring, the bearing inner ring is quickly fixed, when the bearing inner rings with different sizes are machined, the cambered surface support block is driven to move by the extension of the first sliding rod, the distance between the two cambered surface support blocks is changed according to the bearing inner rings with different sizes, the positioning requirement of the bearing inner rings with different sizes is met, the adjustment is convenient, and the use is convenient.

2. In the invention, a second motor fixed in a case drives a driving sleeve connected with the output end of the second motor to rotate when the second motor runs, and the angle of an expansion mechanism connected with the second motor is adjusted by the rotation of the driving sleeve.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

FIG. 1 is a first perspective view of the present invention;

FIG. 2 is a perspective view of a second perspective view of the present invention;

FIG. 3 is an enlarged view of a portion of the invention at A in FIG. 2;

FIG. 4 is a cross-sectional view of the present invention;

FIG. 5 is an enlarged view of a portion of the invention at B in FIG. 4;

FIG. 6 is a top view of the present invention;

fig. 7 is a front view of the present invention.

In the figure: 1. a base plate; 2. a support arm; 3. a U-shaped block; 4. a first motor; 5. rotating the block; 6. a chassis; 601. a second motor; 7. a drive sleeve; 8. a cross-shaped sleeve; 801. a limiting groove; 9. a first slide bar; 10. a limiting rod; 11. a cambered surface support block; 12. a cleat; 13. a push rod; 14. connecting blocks; 15. a connecting rod; 16. a sliding groove; 17. a second slide bar; 18. a third slide bar.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

Referring to fig. 1-7, the present invention provides the following technical solutions:

a positioner is used in production of miniature bearing inner race includes:

two groups of expanding mechanisms are arranged;

every extension mechanism of group all includes driving sleeve 7, cross sleeve 8, spacing groove 801, first slide bar 9, a cambered surface piece 11, push rod 13 and connecting block 14, connecting rod 15, spacing groove 801, first slide bar 9, cambered surface piece 11 and connecting rod 15 all are equipped with a plurality ofly, 8 fixed connection in one side of driving sleeve 7 of cross sleeve, a plurality of spacing grooves 801 all set up in cross sleeve 8, a plurality of first slide bars 9 are sliding connection respectively in a plurality of spacing grooves 801, a plurality of cambered surfaces piece 11 are fixed connection respectively in the one end of a plurality of first slide bars 9, 13 sliding connection in cross sleeve 8 of

push rod

13, 14 fixed connection in the circumferential surface of push rod 13, a plurality of connecting rods 15 all rotate to be connected in connecting block 14, a plurality of connecting rods 15 rotate to be connected through pivot and a plurality of cambered surface pieces 11 respectively.

In the embodiment of the invention, the cross-shaped sleeve 8 in each set of expansion mechanism is cross-shaped, four limiting grooves 801, four first sliding rods 9, a cambered support block 11 and a connecting rod 15 are arranged, the four limiting grooves 801 are all arranged in the cross-shaped sleeve 8, the four first sliding rods 9 are slidably connected in the limiting grooves 801, one end of each first sliding rod 9 is connected with the cambered support block 11, the cambered support block 11 is driven to move by the sliding of the first sliding rod 9 in the limiting grooves 801, the connecting block 14 is rotatably connected with the cambered support block 11 through the four connecting rods 15, the connecting block 14 is driven to move left and right by a push rod 13, the connecting rod 15 is driven to rotate when moving, the connecting rod 15 drives the cambered support block 11 to move towards the outer side of the cambered support block 11 or towards one side where the cross-shaped sleeve 8 is located, through the movement of the four cambered support blocks 11, the anti-skid plate 12 is fixedly connected in each cambered support block 11, the anti-skid plate 12 is used for connecting the inner surface of the inner ring of the bearing, the inner ring is moved through the cambered support block 11, the distance between the two cambered support blocks 11 is changed according to the size of the inner ring of the bearing, the size of the bearing is more flexibly connected with the size of the inner ring of the bearing, and the bearing is not equal to zero size of the bearing.

Specifically, referring to fig. 1 to 7, each first sliding rod 9 is provided therein with a first limiting component, each first limiting component includes a limiting rod 10 and a T-shaped sliding slot, the T-shaped sliding slot is disposed in the first sliding rod 9, the limiting rod 10 is slidably connected in the T-shaped sliding slot, and one end of the limiting rod 10 is fixedly connected to an inner wall of one side of the limiting slot 801.

In this embodiment: first spacing subassembly is used for improving the stability that the cross sleeve 8 movable pulley is connected in spacing groove 801, avoids first slide bar 9 to break away from in spacing groove 801 simultaneously, and the section view face in fig. 5 does not show T type structure, and the T type spout of seting up in the first slide bar 9 is used for connecting gag lever post 10, and the upper portion of gag lever post 10 is the T type, sliding connection is in T type spout, and the lower extreme of gag lever post 10 and one side inner wall connection of spacing groove 801.

Referring to fig. 1-7, the plurality of arc-shaped supporting blocks 11 are all fixedly connected with anti-skid plates 12.

In this embodiment: the antiskid plate 12 is made of rubber, and the surface of the antiskid plate is provided with protrusions, so that when the antiskid plate is connected with the inner surface of the bearing inner ring, the connection stability is improved, and an antiskid effect is achieved.

Referring to fig. 1-7, two driving cylinders are fixedly connected to the two driving sleeves 7, and the extending ends of the two driving cylinders are respectively fixed to one ends of two push rods 13.

In this embodiment: when the driving cylinder operates, the extending end of the driving cylinder pushes the push rod 13 to slide in the cross-shaped sleeve 8, and the push rod 13 drives the connecting block 14, the connecting rod 15 and the cambered surface support block 11 to operate.

Specifically, referring to fig. 1 to 7, two sets of second limiting assemblies are disposed in each driving sleeve 7, each set of second limiting assemblies includes a sliding groove 16, a second sliding rod 17 and a third sliding rod 18, the sliding groove 16 is disposed in the driving sleeve 7, the second sliding rod 17 is fixedly connected to inner walls of two sides of the sliding groove 16, the third sliding rod 18 is fixedly connected to one end of the push rod 13, and the third sliding rod 18 is slidably connected to a circumferential surface of the second sliding rod 17.

In this embodiment: the second limiting assembly is used for improving the stability of the push rod 13 during sliding, the sliding groove 16 is used for connecting a second sliding rod 17, a third sliding rod 18 is fixed on the surface of the push rod 13, the third sliding rod 18 is slidably connected to the circumferential surface of the second sliding rod 17, and the third sliding rod 18 slides on the surface of the second sliding rod 17 to improve the stability of the push rod 13 during operation.

Specifically, referring to fig. 1 to 7, the expansion mechanism further includes a bottom plate 1, and the bottom plate 1 is disposed under the two groups of expansion mechanisms.

In this embodiment: the bottom plate 1 is used for connecting the processing equipment of the inner ring of the miniature bearing.

Specifically, referring to fig. 1 to 7, two supporting arms 2 are fixedly connected to the upper end of the bottom plate 1, and one ends of the two supporting arms 2 are fixedly connected to U-shaped blocks 3.

In this embodiment: the support arm 2 functions to support the U-shaped block 3.

Specifically, referring to fig. 1-7, two U-shaped blocks 3 are rotatably connected with a rotating block 5 through a rotating shaft, and one end of each of the two rotating blocks 5 is fixedly connected with a chassis 6.

In this embodiment: the turning block 5 is connected with the case 6, and the turning block 5 is rotationally connected in the U-shaped block 3 through a rotating shaft.

Specifically, referring to fig. 1-7, one side end of each of the two U-shaped blocks 3 is fixedly connected with a first motor 4, and output ends of the two first motors 4 are respectively connected with the rotating shafts in the two U-shaped blocks 3.

In this embodiment: when the first motor 4 operates, the rotating shaft is driven to rotate, when the rotating shaft rotates, the rotating block 5 is driven to rotate through the rotating shaft, and the rotating block 5 drives the case 6 to rotate.

Specifically, referring to fig. 1 to 7, the two cases 6 are both fixedly connected with second motors 601, and output ends of the two second motors 601 are respectively fixed to one ends of the two driving sleeves 7.

In this embodiment: a second motor 601 fixed in the case 6 drives a driving sleeve 7 connected with the output end of the second motor to rotate when the second motor operates, and the angle of an expansion mechanism connected with the second motor is adjusted by rotating the driving sleeve 7; the first motor 4, the second motor 601 and the driving cylinder used in the device are all the prior art, and are not described herein.

The working principle and the using process of the invention are as follows: when the device is used, firstly, a bottom plate 1 is installed in a processing device of a miniature bearing inner ring, then the bearing inner ring to be processed is sleeved on the surfaces of a plurality of anti-slip plates 12, a driving cylinder operates to drive a push rod 13 to slide in a cross-shaped sleeve 8, an expansion mechanism operates, a connecting block 14 in the expansion mechanism moves towards the right side, the connecting block 14 pushes a cambered surface supporting block 11 to move towards the outer side of the cambered surface supporting block 11 through a connecting rod 15 when moving, the cambered surface supporting block 11 is propped against the inner surface of the miniature bearing inner ring through the anti-slip plates 12 to fix the miniature bearing, then a rotating block 5, a case 6 and the expansion mechanism are driven to rotate through the operation of a first motor 4, and a second motor 601 drives the expansion mechanism to carry out angle adjustment so as to process the surface of the miniature bearing inner ring; through this device, install the bearing inner race behind the surface of antiskid ribbed tile 12, drive the extension mechanism operation through driving actuating cylinder operation, cambered surface prop up piece 11 drives antiskid ribbed tile 12 and extrudes the internal surface at the bearing inner race fast, it is fixed with the bearing inner race fast, add man-hour to the bearing inner race of equidimension not, extension through first slide bar 9 drives cambered surface prop up piece 11 and removes, change the interval of two cambered surface prop up pieces 11 according to the bearing inner race of equidimension not, be fit for the location needs of not unidimension bearing inner race, convenient regulation, and convenient use.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a positioner is used in production of miniature bearing inner race which characterized in that includes:

two sets of expanding mechanisms are arranged;

every group expanding mechanism all includes that driving sleeve (7), cross sleeve (8), spacing groove (801), first slide bar (9), cambered surface prop up piece (11), push rod (13) and connecting block (14), connecting rod (15), spacing groove (801), first slide bar (9), cambered surface prop up piece (11) and connecting rod (15) and all are equipped with a plurality ofly, cross sleeve (8) fixed connection is in one side end of driving sleeve (7), and is a plurality of spacing groove (801) is all seted up in cross sleeve (8), and is a plurality of first slide bar (9) sliding connection respectively is in a plurality of spacing groove (801), and is a plurality of cambered surface prop up piece (11) fixed connection respectively in the one end of a plurality of first slide bars (9), push rod (13) sliding connection is in cross sleeve (8), connecting block (14) fixed connection is in the circumferential surface of push rod (13), and is a plurality of connecting rod (15) all rotate and connect in connecting block (14), and are a plurality of connecting rod (15) rotate through pivot and a plurality of cambered surface respectively and are connected.

2. The positioning device for producing the inner ring of the miniature bearing as claimed in claim 1, wherein: every all be equipped with first spacing subassembly in first slide bar (9), every group first spacing subassembly all includes gag lever post (10) and T type spout, T type spout is seted up in first slide bar (9), gag lever post (10) sliding connection is in T type spout, the one end fixed connection of gag lever post (10) is in one side inner wall of spacing groove (801).

3. The positioning device for producing the inner ring of the miniature bearing as claimed in claim 2, wherein: and anti-skid plates (12) are fixedly connected in the cambered surface supporting blocks (11).

4. The positioning device for producing the inner ring of the miniature bearing as claimed in claim 3, wherein: two equal fixedly connected with drives actuating cylinder in drive sleeve (7), two drive actuating cylinder's extension end is fixed with the one end of two push rods (13) respectively.

5. The positioning device for producing the inner ring of the miniature bearing as claimed in claim 4, wherein: every all be equipped with two sets of second spacing subassemblies in drive sleeve (7), every group the spacing subassembly of second all includes sliding tray (16), second slide bar (17) and third slide bar (18), sliding tray (16) are seted up in drive sleeve (7), second slide bar (17) fixed connection is in the both sides inner wall of sliding tray (16), third slide bar (18) fixed connection is in the one end of push rod (13), third slide bar (18) sliding connection is in the circumferential surface of second slide bar (17).

6. The positioning device for producing the inner ring of the miniature bearing as claimed in claim 5, wherein: the expansion mechanism is characterized by further comprising a bottom plate (1), wherein the bottom plate (1) is arranged on the lower sides of the two groups of expansion mechanisms.

7. The positioning device for producing the inner ring of the miniature bearing as claimed in claim 6, wherein: the upper end fixedly connected with two support arms (2) of bottom plate (1), two the equal fixedly connected with U type piece (3) of one end of support arm (2).

8. The positioning device for producing the inner race of the miniature bearing according to claim 7, wherein: the two U-shaped blocks (3) are respectively and rotatably connected with rotating blocks (5) through rotating shafts, and one ends of the two rotating blocks (5) are fixedly connected with a case (6).

9. The positioning device for producing the inner ring of the miniature bearing as claimed in claim 8, wherein: one side end of each of the two U-shaped blocks (3) is fixedly connected with a first motor (4), and the output ends of the two first motors (4) are respectively connected with rotating shafts in the two U-shaped blocks (3).

10. The positioning device for producing the inner race of the miniature bearing according to claim 9, wherein: the two cases (6) are internally and fixedly connected with second motors (601), and the output ends of the two second motors (601) are respectively fixed with one ends of the two driving sleeves (7).