CN210879219U

CN210879219U - Grinding machine is with preventing spheroid location frock with adjustable crushing wound

Info

Publication number: CN210879219U
Application number: CN201921801293.8U
Authority: CN
Inventors: 张鹤利
Original assignee: Suzhou Industrial Park Bosta Machinery Co ltd
Current assignee: Suzhou Industrial Park Bosta Machinery Co ltd
Priority date: 2019-10-24
Filing date: 2019-10-24
Publication date: 2020-06-30
Anticipated expiration: 2029-10-24

Abstract

The utility model provides a grinding machine is with preventing pressing adjustable spheroid location frock, which comprises a rotating shaft, the rotation axis overcoat is established and is being had first locking Assembly, internal stay mechanism and second locking Assembly, internal stay mechanism includes a plurality of supporting components and adjusting part, the supporting component is including supporting spoke and supporting pad, the utility model discloses not only can avoid spheroidal through-hole inner wall to be pressed, injured by the problem of scratch, and reduced the time that the grinding machine workman rectifies the work piece, reduced grinding machine workman's intensity of labour, improved efficiency in effect. Furthermore, the utility model discloses a location frock can be applicable to the spheroid of bigger size scope, and general type is stronger.

Description

Grinding machine is with preventing spheroid location frock with adjustable crushing wound

Technical Field

The utility model belongs to the technical field of the spheroidal processing of ball valve and specifically relates to a spheroid location frock with preventing crushing with adjustable grinding machine is related to.

Background

Ball valve, the open-close piece (ball) is driven by the valve rod and rotates around the axis of the ball valve. The hard seal V-shaped ball valve can also be used for regulating and controlling fluid, wherein a V-shaped ball core of the hard seal V-shaped ball valve and a metal valve seat of the build-up welding hard alloy have strong shearing force, and the hard seal V-shaped ball valve is particularly suitable for media containing fibers, tiny solid particles and the like.

In the production process of a ball valve ball body, an expansion sleeve is needed to support the ball body when the ball body is finally ground, because all sizes of the ball body are finely machined in place when the process of grinding the excircle of the ball body by a grinding machine is carried out, appearance and size defects are theoretically not allowed to appear, the existing expansion sleeve is a conventional common steel structure expansion sleeve and is directly and tightly attached to a ball inner hole which is finely machined in place, when the machining is finished, the defects such as inner hole crushing, scratching and the like are easily caused, sometimes the defects are serious, the time for grinding the defects later is long, and the common expansion sleeve is used, so that the jumping is large, the correction time of workers is increased, and the production efficiency is low; because the last finish machining of the spherical surface is adopted, when the common expansion sleeve is used, the clearance between the outer diameter of the expansion sleeve and the inner hole of the spherical surface is tighter (the clearance between the expansion sleeve and the inner hole of the spherical surface is smaller compared with that between semi-finish machining, so that the jumping is small), and the universality is poor.

Disclosure of Invention

In order to solve the problem, the utility model provides a grinding machine is with preventing pressing spheroid location frock with adjustable hinder.

The main contents of the utility model include:

the adjustable pressure-damage-preventing sphere positioning tool for the grinding machine comprises a rotating shaft, wherein the rotating shaft comprises a shaft head section, a shaft body and a shaft tail section, the shaft head section is provided with a first locking assembly, the shaft tail section is provided with a second locking assembly, an inner supporting mechanism is arranged on the shaft body and comprises a plurality of supporting assemblies and adjusting assemblies, the supporting assemblies are arranged along the circumferential direction, and the adjusting assemblies are used for adjusting the radius of the circumference where the supporting assemblies are located so that the supporting assemblies can be abutted against the inner wall of a through hole of a sphere to be machined; the supporting component comprises supporting spokes and supporting pads arranged above two ends of the supporting spokes, and two ends of each supporting spoke are respectively connected with the adjusting component.

Preferably, the adjusting assembly includes a first adjusting unit and a second adjusting unit, the first adjusting unit includes a first main bracket slidably sleeved outside the shaft body, a first secondary bracket fixedly sleeved outside the shaft body, and a plurality of first linkage portions, each of the first linkage portions is connected between the first main bracket and the first secondary bracket, and is connected with one of the supporting assemblies; the second adjusting unit comprises a second main support sleeved outside the shaft body in a sliding manner, a second slave support fixedly sleeved outside the shaft body and a plurality of second linkage parts, and each second linkage part is connected between the second main support and the second slave support and is connected with one support assembly; and the second main support is simultaneously linked with the first main support through a third linking part.

Preferably, the first linkage part comprises a first main rod body and a first slave rod body, one end of the first main rod body is rotatably connected to the first main bracket, the other end of the first main rod body is rotatably connected to one side of the first slave rod body, one end of the first slave rod body is rotatably connected to the first slave bracket, and the other end of the first slave rod body is fixedly connected to one end of the supporting spoke;

the second linkage portion comprises a second main rod body and a second slave rod body, one end of the second main rod body is rotatably connected to the second main support, the other end of the second main rod body is rotatably connected to one side of the second slave rod body, one end of the second slave rod body is rotatably connected to the second slave support, and the other end of the second slave rod body is fixedly connected to the other end of the support spoke.

Preferably, the first main support and the first secondary support are circular, a plurality of first main mounting portions are circumferentially arranged on the end surface of the first main support facing the first secondary support, and a plurality of first secondary mounting portions are circumferentially arranged on the end surface of the first secondary support facing the first main support; the first main mounting part comprises a first main left mounting plate and a first main right mounting plate, and the first auxiliary mounting part comprises a first auxiliary left mounting plate and a first auxiliary right mounting plate; one end of the first main rod body is rotatably arranged between the first main left mounting plate and the first main right mounting plate through a first main pin shaft; one end of the first slave rod body is rotatably arranged between the first slave left mounting plate and the first slave right mounting plate through a first slave pin shaft;

the second main support and the second auxiliary support are circular, a plurality of second main mounting parts are arranged on the end surface, facing to each other, of the second main support and the second auxiliary support along the circumferential direction, and a plurality of second auxiliary mounting parts are arranged on the end surface, facing to each other, of the second auxiliary support and the second main support along the circumferential direction; the second main mounting part comprises a second main left mounting plate and a second main right mounting plate, and the second slave mounting part comprises a second slave left mounting plate and a second slave right mounting plate; one end of the second main rod body is rotatably arranged between the second main left mounting plate and the second main right mounting plate through a second main pin shaft; one end of the second slave rod body is rotatably arranged between the second slave left mounting plate and the second slave right mounting plate through a second slave pin shaft.

Preferably, the third linking part includes a third linking rod, and both ends of the third linking rod are respectively and fixedly connected to the first main support and the second main support.

Preferably, a plurality of key pins are circumferentially arranged on the shaft body, and the key pins extend in the axial direction of the shaft body; the inner walls of the inner holes of the first main support, the first slave support, the second main support and the second slave support are circumferentially provided with a plurality of limiting grooves, and the key pins are embedded in the limiting grooves.

Preferably, the shaft body comprises a bearing section and a limiting section which are arranged at intervals, the first main support and the second main support are arranged on the bearing section, the diameter of the bearing section is smaller than the inner hole diameters of the first main support and the second main support, and the diameter of the limiting section is larger than the inner hole diameters of the first main support and the second main support.

Preferably, the first locking assembly is fixedly arranged on the shaft head section, and the first locking assembly is a circular locking plate; the second locking assembly is detachably arranged at the tail section of the shaft.

Preferably, the second locking assembly includes a lock washer and a lock nut, the lock washer being disposed between the lock nut and the adjustment assembly.

Preferably, the supporting pad is a red copper block; the number of the supporting components is 3 or 4.

The beneficial effects of the utility model reside in that: the utility model provides a grinding machine is with preventing pressing adjustable spheroid location frock not only can avoid spheroidal through-hole inner wall to be pressed, by the problem of scratch, and reduced the time that the grinding machine workman rectified the work piece, reduced grinding machine workman's intensity of labour, improved production efficiency. Furthermore, the utility model discloses a location frock can be applicable to the spheroid of bigger size scope, and general type is stronger.

Drawings

Fig. 1 is a schematic view of the positioning tool of the present invention applied to a sphere;

FIG. 2 is a schematic view of the overall structure of the present invention;

fig. 3 is an assembly view of the rotating shaft and the adjusting assembly according to the present invention;

fig. 4 is a schematic structural view of the rotating shaft of the present invention;

fig. 5 is a schematic structural diagram of the adjusting assembly of the present invention;

fig. 6 is a schematic structural view of the first slave rod body or the second slave rod body according to the present invention.

Detailed Description

The technical solution protected by the present invention will be specifically described below with reference to the accompanying drawings.

The utility model provides a grinding machine is with preventing pressing and hindering adjustable spheroid location frock in spheroidal production process, is used for propping the spheroid when the ball face is ground to realize spheroidal location, not only can realize spheroidal stable positioning, reduce the spheroid and beat, and can prevent that frock itself from damaging or the fish tail to the pressure of the inner wall of spheroidal through-hole, guaranteed spheroidal outward appearance and size precision, reduce the subsequent coping processing work of workman, reduced workman's intensity of labour, improved work efficiency.

Please refer to fig. 1 to 6. The sphere positioning tool comprises a rotating shaft 1, wherein the rotating shaft 1 is of a cylindrical structure, when a sphere is positioned, the rotating shaft 1 penetrates through a through hole 90 of a sphere 9, namely the sphere 9 is sleeved outside the rotating shaft 1, two ends of the rotating shaft 1 are respectively connected to a main shaft and a tail seat of a grinding machine, and the rotating shaft 1 can rotate along with the main shaft.

In this embodiment, the rotating shaft 1 includes a shaft head section 1-1, a shaft body 1-2 and a shaft tail section 1-3, the shaft head section 1-1 is configured with a first locking component 2, the shaft tail section 1-3 is configured with a second locking component 3, an inner supporting mechanism is arranged on the circumference of the shaft body 1-2, and the inner supporting mechanism exerts a pressing and abutting force on the inner wall of the through hole 90 of the ball 9 under the action of the first locking component 2 and the second locking component 3, so that the ball 9 is stably positioned on the rotating shaft 1 and rotates along with the rotation of the rotating shaft 1.

In one embodiment, the inner supporting mechanism comprises a plurality of supporting components and adjusting components, the supporting components are arranged along the circumferential direction, and the adjusting components are used for adjusting the radius of the circumference where the supporting components are located so as to enable the supporting components to be abutted against the inner wall of the through hole of the ball to be machined; specifically, the adjusting assembly comprises a first adjusting unit 50 and a second adjusting unit 60, the first adjusting unit 50 is disposed at a side close to the shaft tail section 1-3, and the second adjusting unit 60 is disposed at a side close to the shaft head section 1-1, in one embodiment, by adjusting the second locking assembly 3, a force is applied to the first adjusting unit 50 towards the second adjusting unit 60, so that the circumferential radius of the first adjusting unit 50 and the second adjusting unit 60 is gradually increased until the two abut against the inner wall of the through hole 90 of the ball 9; in other embodiments, the first locking unit 2 and the second locking unit 3 may move towards the center of the shaft body at the same time to apply force to the second adjusting unit 60, so as to increase the adjusting speed.

In one embodiment, the first locking assembly 2 is a circular ring-shaped locking plate fixedly sleeved on the shaft head section 1-1, that is, the first locking assembly 2 is in a non-adjustable state, and the second locking assembly 3 is detachably disposed on the shaft tail section 1-3, specifically, the second locking assembly 3 includes a locking washer 30 and a locking nut 31, the locking washer 30 is disposed between the locking nut 31 and the adjusting assembly, the locking washer 30 is disposed outside the first adjusting unit 50, and when the locking nut 31 is tightened, the locking nut 31 presses the first adjusting unit 50 against the shaft head section 1-1.

Specifically, the first adjusting unit 50 includes a first main bracket 51, a first auxiliary bracket 52 and a plurality of first linking parts 53, which are sleeved outside the shaft body 1-2, and each first linking part 53 is connected between the first main bracket 51 and the first auxiliary bracket 52 and is connected with one of the support components; the first main supporter 51 is provided inside the second locking unit 3, the second sub supporter 52 is provided inside the first main supporter 51, and the first main supporter 51 is displaced in the axial direction of the shaft body 1-2; similarly, the second adjusting assembly 60 includes a second main bracket 61, a second auxiliary bracket 62 and a plurality of second interlocking parts 63, which are sleeved outside the shaft body 1-2, and each second interlocking part 63 is connected between the second main bracket 61 and the second auxiliary bracket 62; in one embodiment, the supporting assembly includes a supporting spoke 40 and a supporting pad 41 disposed above two ends of the supporting spoke 40, and two ends of the supporting spoke 40 are respectively connected to a first interlocking part 53 and a second interlocking part 63; meanwhile, the second main support 61 is interlocked with the first main support 51 through a third interlocking part 70, that is, the first main support 51 moves inward under the pushing of the lock nut 31, and one end of the support spoke 40 connected with the first interlocking part 53 is displaced outward in a radial direction; meanwhile, due to the interlocking action of the third interlocking part 70, the second main support 61 is also displaced towards the second auxiliary support 62, so that the other end of the supporting spoke 40 connected with the second interlocking part 63 is also displaced outwards in a radial direction synchronously, that is, the supporting blocks 41 at the two ends of the supporting spoke 40 are synchronously pressed against the inner wall of the through hole 90 of the sphere 9, and when the second main support 61 moves to a certain position, a reaction force is applied to the first main support 51 through the third transmission part 70, so that the first main support 51 stops moving, and is unfolded to the proper position.

In one embodiment, please refer to fig. 3, the first main support 51 and the first secondary support 52 are circular rings, the end surface of the first main support 51 facing the first secondary support 52 is provided with a plurality of first main mounting portions along the circumferential direction, and the end surface of the first secondary support 52 facing the first main support 51 is provided with a plurality of first secondary mounting portions along the circumferential direction; the first main mounting portion includes a first main left mounting plate 540 and a first main right mounting plate 541, the first linkage portion 53 includes a first main rod 530 and a first slave rod 531, one end of the first main rod 530 is rotatably mounted between the first main left mounting plate 540 and the first main right mounting plate 541 through a first main pin 552, and the other end of the first main rod 530 is connected to one side of the first slave rod 531; likewise, the first slave mounting portion includes a first slave left mounting plate 550 and a first slave right mounting plate 551; one end of the first slave rod body 531 is rotatably disposed between the first slave left mounting plate 550 and the first slave right mounting plate 551 through the first slave pin 553, and the other end thereof is fixedly connected to the supporting spokes 40, along with the displacement of the first main bracket 51, the first slave rod body 530 is displaced in the vertical direction, so that the first slave rod body 531 is correspondingly displaced, and the supporting spokes 40 connected to the first slave rod body 531 are also displaced in the vertical direction, where the "vertical direction" refers to a direction perpendicular to the circumferential surface of the first slave rod body 531 and the first master rod body 530.

Similarly, the second main support 61 and the second auxiliary support 62 are circular rings, the end surface of the second main support 61 facing the second auxiliary support 62 is provided with a plurality of second main mounting parts along the circumferential direction, and the end surface of the second auxiliary support 62 facing the second main support 61 is provided with a plurality of second auxiliary mounting parts along the circumferential direction; the second main mounting portion includes a second main left mounting plate 640 and a second main right mounting plate 641, and the second slave mounting portion includes a second slave left mounting plate 650 and a second slave right mounting plate 651; the second linkage 63 includes a second main rod 630 and a second slave rod 631, one end of the second main rod 630 is rotatably disposed between the second main left mounting plate 640 and the second main right mounting plate 641 through a second main pin 652, and the other end thereof is connected to one side of the second slave rod 631; the structure of the second slave lever body 631 and the first slave lever body 531 can refer to fig. 6; one end of the second slave rod body 631 is rotatably disposed between the second slave left mounting plate 650 and the second slave right mounting plate 651 by the second slave pin 653, and the other end thereof is fixedly connected to the other end of the supporting spoke 40. When the second main supporter 61 is pushed by the first main supporter 51 to displace, the second main supporter 630 displaces in the vertical direction to drive the second slave supporter 631 to displace in the same direction, so that the supporting spokes 40 displace in the vertical direction, i.e. move towards the inner wall of the through holes 90 of the ball 9.

In one embodiment, the support pad 41 is a red copper block.

In one embodiment, the third linking part 70 includes a third linking rod 700, and both ends of the third linking rod 700 are fixedly connected to the first main support 51 and the second main support 61, respectively.

In the present embodiment, the number of the supporting spokes 40 is 3 or 4, fig. 2 shows 4 supporting spokes, and accordingly, the number of the first interlocking portions 53 and the second interlocking portions 63 is also 4, and the number of the first main mounting portions on the first main support 51, the first slave mounting portions on the first slave support 52, the second main mounting portions on the second main support 61, and the second slave mounting portions on the second slave support 62 is also 4; likewise, the number of the first master rod body 530, the first slave rod body 531, the second master rod body 630, the second slave rod body 631, the first master pin 552, the first slave pin 553, the second master pin 652 and the second slave pin 653 is also 4, and the material of the first master pin 552, the first slave pin 553, the second master pin 652 and the second slave pin 653 is selected to be bearing steel, so that better hardness, wear resistance and fatigue strength are provided.

In order to prevent the first main support 51 and the second main support 61 from radially displacing during the axial displacement, a plurality of key pins 80 are circumferentially arranged on the shaft body 1-2, specifically, a key pin groove 800 is formed on the shaft body 80, the key pins 80 are installed in the key pin groove 800, and the surfaces of the key pins are higher than the key pin groove 800, meanwhile, a plurality of limiting grooves are circumferentially formed on the inner walls of the inner holes of the first main support 51, the first secondary support 52, the second main support 61 and the second secondary support 62, so that the key pins 80 are embedded in the limiting grooves, in one embodiment, the number of the key pins 80 is two, and the key pins are distributed along the circumference of the shaft body 1-2, and a single key pin 80 extends along the axial direction of the shaft body.

In addition, the shaft body 1-2 includes a bearing section 10 and a limiting section 11 disposed at an interval, the first main support 51 and the second main support 61 are disposed on the bearing section 10, the diameter of the bearing section 10 is smaller than the inner hole diameters of the first main support 51 and the second main support 61, and the diameter of the limiting section 11 is larger than the inner hole diameters of the first main support 51 and the second main support 61, so as to limit the stroke of the first main support 51 and the second main support 61 and avoid the damage to the through hole of the sphere due to excessive displacement.

In one embodiment, the material of the rotating shaft 1 is 45 steel, which has better hardness and wear resistance.

The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.

Claims

1. The adjustable pressure-damage-preventing sphere positioning tool for the grinding machine is characterized by comprising a rotating shaft, wherein the rotating shaft comprises a shaft head section, a shaft body and a shaft tail section, the shaft head section is provided with a first locking assembly, the shaft tail section is provided with a second locking assembly, an inner supporting mechanism is arranged on the shaft body and comprises a plurality of supporting assemblies and adjusting assemblies, the supporting assemblies are arranged along the circumferential direction, and the adjusting assemblies are used for adjusting the radius of the circumference where the supporting assemblies are located so that the supporting assemblies are abutted against the inner wall of a through hole of a sphere to be machined; the supporting component comprises supporting spokes and supporting pads arranged above two ends of the supporting spokes, and two ends of each supporting spoke are respectively connected with the adjusting component.

2. The anti-crushing adjustable sphere positioning tool for the grinding machine as claimed in claim 1, wherein the adjusting assembly comprises a first adjusting unit and a second adjusting unit, the first adjusting unit comprises a first main bracket slidably sleeved outside the shaft body, a first auxiliary bracket fixedly sleeved outside the shaft body, and a plurality of first linkage portions, each first linkage portion is connected between the first main bracket and the first auxiliary bracket and connected with one of the supporting assemblies;

the second adjusting unit comprises a second main support sleeved outside the shaft body in a sliding manner, a second slave support fixedly sleeved outside the shaft body and a plurality of second linkage parts, and each second linkage part is connected between the second main support and the second slave support and is connected with one support assembly; and the second main support is simultaneously linked with the first main support through a third linking part.

3. The crush-proof adjustable ball positioning tool for the grinding machine as claimed in claim 2, wherein the first linkage part comprises a first main rod body and a first slave rod body, one end of the first main rod body is rotatably connected to the first master bracket, the other end of the first main rod body is rotatably connected to one side of the first slave rod body, one end of the first slave rod body is rotatably connected to the first slave bracket, and the other end of the first slave rod body is fixedly connected to one end of the supporting spoke;

4. The crush-proof adjustable sphere positioning tool for the grinding machine as claimed in claim 3, wherein the first main support and the first auxiliary support are circular rings, a plurality of first main mounting portions are circumferentially arranged on the end surface of the first main support facing the first auxiliary support, and a plurality of first auxiliary mounting portions are circumferentially arranged on the end surface of the first auxiliary support facing the first main support; the first main mounting part comprises a first main left mounting plate and a first main right mounting plate, and the first auxiliary mounting part comprises a first auxiliary left mounting plate and a first auxiliary right mounting plate; one end of the first main rod body is rotatably arranged between the first main left mounting plate and the first main right mounting plate through a first main pin shaft; one end of the first slave rod body is rotatably arranged between the first slave left mounting plate and the first slave right mounting plate through a first slave pin shaft;

5. The anti-crushing adjustable sphere positioning tool for the grinding machine as claimed in claim 2, wherein the third linkage portion includes a third linkage rod, and two ends of the third linkage rod are respectively and fixedly connected to the first main support and the second main support.

6. The crush-proof adjustable ball positioning tool for the grinding machine as claimed in any one of claims 2 to 5, wherein a plurality of key pins are arranged on the shaft body along the circumference, and the key pins extend along the axial direction of the shaft body; the inner walls of the inner holes of the first main support, the first slave support, the second main support and the second slave support are circumferentially provided with a plurality of limiting grooves, and the key pins are embedded in the limiting grooves.

7. The anti-crushing adjustable sphere positioning tool for the grinding machine as claimed in any one of claims 2 to 5, wherein the shaft body comprises a bearing section and a limiting section which are arranged at intervals, the first main support and the second main support are arranged at the bearing section, the diameter of the bearing section is smaller than the inner hole diameter of the first main support and the second main support, and the diameter of the limiting section is larger than the inner hole diameter of the first main support and the second main support.

8. The crush-damage-preventing adjustable sphere positioning tool for the grinding machine as claimed in claim 1, wherein the first locking assembly is fixedly arranged at the spindle head section, and the first locking assembly is a circular locking plate; the second locking assembly is detachably arranged at the tail section of the shaft.

9. The crush-proof adjustable ball positioning tool for the grinding machine as claimed in claim 8, wherein the second locking assembly comprises a lock washer and a lock nut, and the lock washer is arranged between the lock nut and the adjusting assembly.

10. The adjustable crush-proof ball positioning tool for the grinding machine as claimed in claim 1, wherein the support pad is a red copper block; the number of the supporting components is 3 or 4.